303 Commits

Author	SHA1	Message	Date
Lewis Hyatt	f3b957ea8b	pch: Fix streaming of strings with embedded null bytes ... When a GTY'ed struct is streamed to PCH, any plain char* pointers it contains (whether they live in GC-controlled memory or not) will be marked for PCH output by the routine gt_pch_note_object in ggc-common.cc. This routine special-cases plain char* strings, and in particular it uses strlen() to get their length. Thus it does not handle strings with embedded null bytes, but it is possible for something PCH cares about (such as a string literal token in a macro definition) to contain such embedded nulls. To fix that up, add a new GTY option "string_length" so that gt_pch_note_object can be informed the actual length it ought to use, and use it in the relevant libcpp structs (cpp_string and ht_identifier) accordingly. gcc/ChangeLog: * gengtype.cc (output_escaped_param): Add missing const. (get_string_option): Add missing check for option type. (walk_type): Support new "string_length" GTY option. (write_types_process_field): Likewise. * ggc-common.cc (gt_pch_note_object): Add optional length argument. * ggc.h (gt_pch_note_object): Adjust prototype for new argument. (gt_pch_n_S2): Declare... * stringpool.cc (gt_pch_n_S2): ...new function. * doc/gty.texi: Document new GTY((string_length)) option. libcpp/ChangeLog: * include/cpplib.h (struct cpp_string): Use new "string_length" GTY. * include/symtab.h (struct ht_identifier): Likewise. gcc/testsuite/ChangeLog: * g++.dg/pch/pch-string-nulls.C: New test. * g++.dg/pch/pch-string-nulls.Hs: New test.	2022-10-19 09:26:09 -04:00
Joseph Myers	36d20fa4a8	preprocessor: C2x identifier rules ... C2x has, like C++, adopted rules for identifiers based directly on an unversioned normative reference to Unicode. Make libcpp follow those rules for c2x / gnu2x standards (this involves bringing back a flag separate from the C++ one for whether to use these identifier rules, but this time enabled for all C++ language versions since that was the conclusion adopted for C++ identifier handling). There is one change here that affects C++. I believe the new normative requirement for NFC only applies to identifiers, not to the use of identifier-continue characters in pp-numbers, where there is no such requirement and so the diagnostic ought to be a warning not a pedwarn in pp-numbers, and that this is the case for both C and C++. Bootstrapped with no regressions for x86_64-pc-linux-gnu. libcpp/ * charset.cc (ucn_valid_in_identifier): Check xid_identifiers not cplusplus to determine whether to use CXX23 and NXX23 flags. * include/cpplib.h (struct cpp_options): Add xid_identifiers. * init.cc (struct lang_flags, lang_defaults): Add xid_identifiers. (cpp_set_lang): Set xid_identifiers. * lex.cc (warn_about_normalization): Add parameter identifier. Only pedwarn about non-NFC for identifiers, not pp-numbers. (_cpp_lex_direct): Update calls to warn_about_normalization. gcc/testsuite/ * gcc.dg/cpp/c2x-ucnid-1-utf8.c, gcc.dg/cpp/c2x-ucnid-1.c: New tests.	2022-10-14 23:07:50 +00:00
Jakub Jelinek	c2565a31c1	middle-end, c++, i386, libgcc: std::bfloat16_t and __bf16 arithmetic support ... Here is a complete patch to add std::bfloat16_t support on x86 (AArch64 and ARM left for later). Almost no BFmode optabs are added by the patch, so for binops/unops it extends to SFmode first and then truncates back to BFmode. For {HF,SF,DF,XF,TF}mode -> BFmode conversions libgcc has implementations of all those conversions so that we avoid double rounding, for BFmode -> {DF,XF,TF}mode conversions to avoid growing libgcc too much it emits BFmode -> SFmode conversion first and then converts to the even wider mode, neither step should be imprecise. For BFmode -> HFmode, it first emits a precise BFmode -> SFmode conversion and then SFmode -> HFmode, because neither format is subset or superset of the other, while SFmode is superset of both. expr.cc then contains a -ffast-math optimization of the BF -> SF and SF -> BF conversions if we don't optimize for space (and for the latter if -frounding-math isn't enabled either). For x86, perhaps truncsfbf2 optab could be defined for TARGET_AVX512BF16 but IMNSHO should FAIL if !flag_finite_math || flag_rounding_math || !flag_unsafe_math_optimizations, because I think the insn doesn't raise on sNaNs, hardcodes round to nearest and flushes denormals to zero. By default (unless x86 -fexcess-precision=16) we use float excess precision for BFmode, so truncate only on explicit casts and assignments. The patch introduces a single __bf16 builtin - __builtin_nansf16b, because (__bf16) __builtin_nansf ("") will drop the sNaN into qNaN, and uses f16b suffix instead of bf16 because there would be ambiguity on log vs. logb - __builtin_logbf16 could be either log with bf16 suffix or logb with f16 suffix. In other cases libstdc++ should mostly use __builtin_*f for std::bfloat16_t overloads (we have a problem with std::nextafter though but that one we have also for std::float16_t). 2022-10-14 Jakub Jelinek <jakub@redhat.com> gcc/ * tree-core.h (enum tree_index): Add TI_BFLOAT16_TYPE. * tree.h (bfloat16_type_node): Define. * tree.cc (excess_precision_type): Promote bfloat16_type_mode like float16_type_mode. (build_common_tree_nodes): Initialize bfloat16_type_node if BFmode is supported. * expmed.h (maybe_expand_shift): Declare. * expmed.cc (maybe_expand_shift): No longer static. * expr.cc (convert_mode_scalar): Don't ICE on BF -> HF or HF -> BF conversions. If there is no optab, handle BF -> {DF,XF,TF,HF} conversions as separate BF -> SF -> {DF,XF,TF,HF} conversions, add -ffast-math generic implementation for BF -> SF and SF -> BF conversions. * builtin-types.def (BT_BFLOAT16, BT_FN_BFLOAT16_CONST_STRING): New. * builtins.def (BUILT_IN_NANSF16B): New builtin. * fold-const-call.cc (fold_const_call): Handle CFN_BUILT_IN_NANSF16B. * config/i386/i386.cc (classify_argument): Handle E_BCmode. (ix86_libgcc_floating_mode_supported_p): Also return true for BFmode for -msse2. (ix86_mangle_type): Mangle BFmode as DF16b. (ix86_invalid_conversion, ix86_invalid_unary_op, ix86_invalid_binary_op): Remove. (TARGET_INVALID_CONVERSION, TARGET_INVALID_UNARY_OP, TARGET_INVALID_BINARY_OP): Don't redefine. * config/i386/i386-builtins.cc (ix86_bf16_type_node): Remove. (ix86_register_bf16_builtin_type): Use bfloat16_type_node rather than ix86_bf16_type_node, only create it if still NULL. * config/i386/i386-builtin-types.def (BFLOAT16): Likewise. * config/i386/i386.md (cbranchbf4, cstorebf4): New expanders. gcc/c-family/ * c-cppbuiltin.cc (c_cpp_builtins): If bfloat16_type_node, predefine __BFLT16_*__ macros and for C++23 also __STDCPP_BFLOAT16_T__. Predefine bfloat16_type_node related macros for -fbuilding-libgcc. * c-lex.cc (interpret_float): Handle CPP_N_BFLOAT16. gcc/c/ * c-typeck.cc (convert_arguments): Don't promote __bf16 to double. gcc/cp/ * cp-tree.h (extended_float_type_p): Return true for bfloat16_type_node. * typeck.cc (cp_compare_floating_point_conversion_ranks): Set extended{1,2} if mv{1,2} is bfloat16_type_node. Adjust comment. gcc/testsuite/ * lib/target-supports.exp (check_effective_target_bfloat16, check_effective_target_bfloat16_runtime, add_options_for_bfloat16): New. * gcc.dg/torture/bfloat16-basic.c: New test. * gcc.dg/torture/bfloat16-builtin.c: New test. * gcc.dg/torture/bfloat16-builtin-issignaling-1.c: New test. * gcc.dg/torture/bfloat16-complex.c: New test. * gcc.dg/torture/builtin-issignaling-1.c: Allow to be includable from bfloat16-builtin-issignaling-1.c. * gcc.dg/torture/floatn-basic.h: Allow to be includable from bfloat16-basic.c. * gcc.target/i386/vect-bfloat16-typecheck_2.c: Adjust expected diagnostics. * gcc.target/i386/sse2-bfloat16-scalar-typecheck.c: Likewise. * gcc.target/i386/vect-bfloat16-typecheck_1.c: Likewise. * g++.target/i386/bfloat_cpp_typecheck.C: Likewise. libcpp/ * include/cpplib.h (CPP_N_BFLOAT16): Define. * expr.cc (interpret_float_suffix): Handle bf16 and BF16 suffixes for C++. libgcc/ * config/i386/t-softfp (softfp_extensions): Add bfsf. (softfp_truncations): Add tfbf xfbf dfbf sfbf hfbf. (CFLAGS-extendbfsf2.c, CFLAGS-truncsfbf2.c, CFLAGS-truncdfbf2.c, CFLAGS-truncxfbf2.c, CFLAGS-trunctfbf2.c, CFLAGS-trunchfbf2.c): Add -msse2. * config/i386/libgcc-glibc.ver (GCC_13.0.0): Export __extendbfsf2 and __trunc{s,d,x,t,h}fbf2. * config/i386/sfp-machine.h (_FP_NANSIGN_B): Define. * config/i386/64/sfp-machine.h (_FP_NANFRAC_B): Define. * config/i386/32/sfp-machine.h (_FP_NANFRAC_B): Define. * soft-fp/brain.h: New file. * soft-fp/truncsfbf2.c: New file. * soft-fp/truncdfbf2.c: New file. * soft-fp/truncxfbf2.c: New file. * soft-fp/trunctfbf2.c: New file. * soft-fp/trunchfbf2.c: New file. * soft-fp/truncbfhf2.c: New file. * soft-fp/extendbfsf2.c: New file. libiberty/ * cp-demangle.h (D_BUILTIN_TYPE_COUNT): Increment. * cp-demangle.c (cplus_demangle_builtin_types): Add std::bfloat16_t entry. (cplus_demangle_type): Demangle DF16b. * testsuite/demangle-expected (_Z3xxxDF16b): New test.	2022-10-14 09:37:01 +02:00
Eugene Rozenfeld	f1adf45b17	Add instruction level discriminator support. ... This is the first in a series of patches to enable discriminator support in AutoFDO. This patch switches to tracking discriminators per statement/instruction instead of per basic block. Tracking per basic block was problematic since not all statements in a basic block needed a discriminator and, also, later optimizations could move statements between basic blocks making correlation during AutoFDO compilation unreliable. Tracking per statement also allows us to assign different discriminators to multiple function calls in the same basic block. A subsequent patch will add that support. The idea of this patch is based on commit 4c311d95cf by Dehao Chen in vendors/google/heads/gcc-4_8 but uses a slightly different approach. In Dehao's work special (normally unused) location ids and side tables were used to keep track of locations with discriminators. Things have changed since then and I don't think we have unused location ids anymore. Instead, I made discriminators a part of ad-hoc locations. The difference from Dehao's work also includes support for discriminator reading/writing in lto streaming and in modules. Tested on x86_64-pc-linux-gnu. gcc/ChangeLog: * basic-block.h: Remove discriminator from basic blocks. * cfghooks.cc (split_block_1): Remove discriminator from basic blocks. * final.cc (final_start_function_1): Switch from per-bb to per statement discriminator. (final_scan_insn_1): Don't keep track of basic block discriminators. (compute_discriminator): Switch from basic block discriminators to instruction discriminators. (insn_discriminator): New function to return instruction discriminator. (notice_source_line): Use insn_discriminator. * gimple-pretty-print.cc (dump_gimple_bb_header): Remove dumping of basic block discriminators. * gimple-streamer-in.cc (input_bb): Remove reading of basic block discriminators. * gimple-streamer-out.cc (output_bb): Remove writing of basic block discriminators. * input.cc (make_location): Pass 0 discriminator to COMBINE_LOCATION_DATA. (location_with_discriminator): New function to combine locus with a discriminator. (has_discriminator): New function to check if a location has a discriminator. (get_discriminator_from_loc): New function to get the discriminator from a location. * input.h: Declarations of new functions. * lto-streamer-in.cc (cmp_loc): Use discriminators in location comparison. (apply_location_cache): Keep track of current discriminator. (input_location_and_block): Read discriminator from stream. * lto-streamer-out.cc (clear_line_info): Set current discriminator to UINT_MAX. (lto_output_location_1): Write discriminator to stream. * lto-streamer.h: Add discriminator to cached_location. Add current_discr to lto_location_cache. Add current_discr to output_block. * print-rtl.cc (print_rtx_operand_code_i): Print discriminator. * rtl.h: Add extern declaration of insn_discriminator. * tree-cfg.cc (assign_discriminator): New function to assign a unique discriminator value to all statements in a basic block that have the given line number. (assign_discriminators): Assign discriminators to statement locations. * tree-pretty-print.cc (dump_location): Dump discriminators. * tree.cc (set_block): Preserve discriminator when setting block. (set_source_range): Preserve discriminator when setting source range. gcc/cp/ChangeLog: * module.cc (write_location): Write discriminator. (read_location): Read discriminator. libcpp/ChangeLog: * include/line-map.h: Add discriminator to location_adhoc_data. (get_combined_adhoc_loc): Add discriminator parameter. (get_discriminator_from_adhoc_loc): Add external declaration. (get_discriminator_from_loc): Add external declaration. (COMBINE_LOCATION_DATA): Add discriminator parameter. * lex.cc (get_location_for_byte_range_in_cur_line) Pass 0 discriminator in a call to COMBINE_LOCATION_DATA. (warn_about_normalization): Pass 0 discriminator in a call to COMBINE_LOCATION_DATA. (_cpp_lex_direct): Pass 0 discriminator in a call to COMBINE_LOCATION_DATA. * line-map.cc (location_adhoc_data_hash): Use discriminator compute location_adhoc_data hash. (location_adhoc_data_eq): Use discriminator when comparing location_adhoc_data. (can_be_stored_compactly_p): Check discriminator to determine compact storage. (get_combined_adhoc_loc): Add discriminator parameter. (get_discriminator_from_adhoc_loc): New function to get the discriminator from an ad-hoc location. (get_discriminator_from_loc): New function to get the discriminator from a location. gcc/testsuite/ChangeLog: * c-c++-common/ubsan/pr85213.c: Pass -gno-statement-frontiers.	2022-09-28 14:25:18 -07:00
Joseph Myers	0a91bdaf17	c: New C2x keywords ... C2x follows C++ in making alignas, alignof, bool, false, static_assert, thread_local and true keywords; implement this accordingly. This implementation makes them normal keywords in C2x mode just like any other keyword (C2x leaves open the possibility of implementation using predefined macros instead - thus, there aren't any testcases asserting that they aren't macros). As in C++ and previous versions of C, true and false are handled like signed 1 and 0 in #if (there was an intermediate state in some C2x drafts where they had different macro expansions that were unsigned in #if). Bootstrapped with no regressions for x86_64-pc-linux-gnu. As with the removal of unprototyped functions, this change has a high risk of breaking some old code and people doing GNU/Linux distribution builds may wish to see how much is broken in a build with a -std=gnu2x default. gcc/ * ginclude/stdalign.h [defined __STDC_VERSION__ && __STDC_VERSION__ > 201710L]: Disable all content. * ginclude/stdbool.h [defined __STDC_VERSION__ && __STDC_VERSION__ > 201710L] (bool, true, false): Do not define. gcc/c-family/ * c-common.cc (c_common_reswords): Use D_C2X instead of D_CXXONLY for alignas, alignof, bool, false, static_assert, thread_local and true. gcc/c/ * c-parser.cc (c_parser_static_assert_declaration_no_semi) (c_parser_alignas_specifier, c_parser_alignof_expression): Allow for C2x spellings of keywords. (c_parser_postfix_expression): Handle RID_TRUE and RID_FALSE. gcc/testsuite/ * gcc.dg/c11-keywords-1.c, gcc.dg/c2x-align-1.c, gcc.dg/c2x-align-6.c, gcc.dg/c2x-bool-2.c, gcc.dg/c2x-static-assert-3.c, gcc.dg/c2x-static-assert-4.c, gcc.dg/c2x-thread-local-1.c: New tests. * gcc.dg/c2x-bool-1.c: Update expectations. libcpp/ * include/cpplib.h (struct cpp_options): Add true_false. * expr.cc (eval_token): Check true_false not cplusplus to determine whether to handle true and false keywords. * init.cc (struct lang_flags): Add true_false. (lang_defaults): Update. (cpp_set_lang): Set true_false.	2022-09-07 13:56:46 +00:00
Jakub Jelinek	572f5e1bc6	libcpp: Named universal character escapes and delimited escape sequence tweaks ... On Tue, Aug 30, 2022 at 09:10:37PM +0000, Joseph Myers wrote: > I'm seeing build failures of glibc for powerpc64, as illustrated by the > following C code: > > #if 0 > \NARG > #endif > > (the actual sysdeps/powerpc/powerpc64/sysdep.h code is inside #ifdef > __ASSEMBLER__). > > This shows some problems with this feature - and with delimited escape > sequences - as it affects C. It's fine to accept it as an extension > inside string and character literals, because \N or \u{...} would be > invalid in the absence of the feature (i.e. the syntax for such literals > fails to match, meaning that the rule about undefined behavior for a > single ' or " as a pp-token applies). But outside string and character > literals, the usual lexing rules apply, the \ is a pp-token on its own and > the code is valid at the preprocessing level, and with expansion of macros > appearing before or after the \ (e.g. u defined as a macro in the \u{...} > case) it may be valid code at the language level as well. I don't know > what older C++ versions say about this, but for C this means e.g. > > #define z(x) 0 > #define a z( > int x = a\NARG); > > needs to be accepted as expanding to "int x = 0;", not interpreted as > using the \N feature in an identifier and produce an error. The following patch changes this, so that: 1) outside of string/character literals, \N without following { is never treated as an error nor warning, it is silently treated as \ separate token followed by whatever is after it 2) \u{123} and \N{LATIN SMALL LETTER A WITH ACUTE} are not handled as extension at all outside of string/character literals in the strict standard modes (-std=c*) except for -std=c++{23,2b}, only in the -std=gnu* modes, because it changes behavior on valid sources, e.g. #define z(x) 0 #define a z( int x = a\u{123}); int y = a\N{LATIN SMALL LETTER A WITH ACUTE}); 3) introduces -Wunicode warning (on by default) and warns for cases of what looks like invalid delimited escape sequence or named universal character escape outside of string/character literals and is treated as separate tokens 2022-09-07 Jakub Jelinek <jakub@redhat.com> libcpp/ * include/cpplib.h (struct cpp_options): Add cpp_warn_unicode member. (enum cpp_warning_reason): Add CPP_W_UNICODE. * init.cc (cpp_create_reader): Initialize cpp_warn_unicode. * charset.cc (_cpp_valid_ucn): In possible identifier contexts, don't handle \u{ or \N{ specially in -std=c* modes except -std=c++2{3,b}. In possible identifier contexts, don't emit an error and punt if \N isn't followed by {, or if \N{} surrounds some lower case letters or _. In possible identifier contexts when not C++23, don't emit an error but warning about unknown character names and treat as separate tokens. When treating as separate tokens \u{ or \N{, emit warnings. gcc/ * doc/invoke.texi (-Wno-unicode): Document. gcc/c-family/ * c.opt (Winvalid-utf8): Use ObjC instead of objC. Remove " in comments" from description. (Wunicode): New option. gcc/testsuite/ * c-c++-common/cpp/delimited-escape-seq-4.c: New test. * c-c++-common/cpp/delimited-escape-seq-5.c: New test. * c-c++-common/cpp/delimited-escape-seq-6.c: New test. * c-c++-common/cpp/delimited-escape-seq-7.c: New test. * c-c++-common/cpp/named-universal-char-escape-5.c: New test. * c-c++-common/cpp/named-universal-char-escape-6.c: New test. * c-c++-common/cpp/named-universal-char-escape-7.c: New test. * g++.dg/cpp23/named-universal-char-escape1.C: New test. * g++.dg/cpp23/named-universal-char-escape2.C: New test.	2022-09-07 08:44:38 +02:00
David Malcolm	bedfca647a	c/c++: new warning: -Wxor-used-as-pow [PR90885] ... PR c/90885 notes various places in real-world code where people have written C/C++ code that uses ^ (exclusive or) where presumbably they meant exponentiation. For example https://codesearch.isocpp.org/cgi-bin/cgi_ppsearch?q=2%5E32&search=Search currently finds 11 places using "2^32", and all of them appear to be places where the user means 2 to the power of 32, rather than 2 exclusive-orred with 32 (which is 34). This patch adds a new -Wxor-used-as-pow warning to the C and C++ frontends to complain about ^ when the left-hand side is the decimal constant 2 or the decimal constant 10. This is the same name as the corresponding clang warning: https://clang.llvm.org/docs/DiagnosticsReference.html#wxor-used-as-pow As per the clang warning, the warning suggests converting the left-hand side to a hexadecimal constant if you really mean xor, which suppresses the warning (though this patch implements a fix-it hint for that, whereas the clang implementation only has a fix-it hint for the initial suggestion of exponentiation). I initially tried implementing this without checking for decimals, but this version had lots of false positives. Checking for decimals requires extending the lexer to capture whether or not a CPP_NUMBER token was decimal. I added a new DECIMAL_INT flag to cpplib.h for this. Unfortunately, c_token and cp_tokens both have only an unsigned char for their flags (as captured by c_lex_with_flags), whereas this would add the 12th flag to cpp_tokens. Of the first 8 flags, all but BOL are used in the C or C++ frontends, but BOL is not, so I moved that to a higher position, using its old value for the new DECIMAL_INT flag, so that it is representable within an unsigned char. Example output: demo.c:5:13: warning: result of '2^8' is 10; did you mean '1 << 8' (256)? [-Wxor-used-as-pow] 5 | int t2_8 = 2^8; | ^ | -- | 1<< demo.c:5:12: note: you can silence this warning by using a hexadecimal constant (0x2 rather than 2) 5 | int t2_8 = 2^8; | ^ | 0x2 demo.c:21:15: warning: result of '10^6' is 12; did you mean '1e6'? [-Wxor-used-as-pow] 21 | int t10_6 = 10^6; | ^ | --- | 1e demo.c:21:13: note: you can silence this warning by using a hexadecimal constant (0xa rather than 10) 21 | int t10_6 = 10^6; | ^~ | 0xa gcc/c-family/ChangeLog: PR c/90885 * c-common.h (check_for_xor_used_as_pow): New decl. * c-lex.cc (c_lex_with_flags): Add DECIMAL_INT to flags as appropriate. * c-warn.cc (check_for_xor_used_as_pow): New. * c.opt (Wxor-used-as-pow): New. gcc/c/ChangeLog: PR c/90885 * c-parser.cc (c_parser_string_literal): Clear ret.m_decimal. (c_parser_expr_no_commas): Likewise. (c_parser_conditional_expression): Likewise. (c_parser_binary_expression): Clear m_decimal when popping the stack. (c_parser_unary_expression): Clear ret.m_decimal. (c_parser_has_attribute_expression): Likewise for result. (c_parser_predefined_identifier): Likewise for expr. (c_parser_postfix_expression): Likewise for expr. Set expr.m_decimal when handling a CPP_NUMBER that was a decimal token. * c-tree.h (c_expr::m_decimal): New bitfield. * c-typeck.cc (parser_build_binary_op): Clear result.m_decimal. (parser_build_binary_op): Call check_for_xor_used_as_pow. gcc/cp/ChangeLog: PR c/90885 * cp-tree.h (class cp_expr): Add bitfield m_decimal. Clear it in existing ctors. Add ctor that allows specifying its value. (cp_expr::decimal_p): New accessor. * parser.cc (cp_parser_expression_stack_entry::flags): New field. (cp_parser_primary_expression): Set m_decimal of cp_expr when handling numbers. (cp_parser_binary_expression): Extract flags from token when populating stack. Call check_for_xor_used_as_pow. gcc/ChangeLog: PR c/90885 * doc/invoke.texi (Warning Options): Add -Wxor-used-as-pow. gcc/testsuite/ChangeLog: PR c/90885 * c-c++-common/Wxor-used-as-pow-1.c: New test. * c-c++-common/Wxor-used-as-pow-fixits.c: New test. * g++.dg/parse/expr3.C: Convert 2 to 0x2 to suppress -Wxor-used-as-pow. * g++.dg/warn/Wparentheses-10.C: Likewise. * g++.dg/warn/Wparentheses-18.C: Likewise. * g++.dg/warn/Wparentheses-19.C: Likewise. * g++.dg/warn/Wparentheses-9.C: Likewise. * g++.dg/warn/Wxor-used-as-pow-named-op.C: New test. * gcc.dg/Wparentheses-6.c: Convert 2 to 0x2 to suppress -Wxor-used-as-pow. * gcc.dg/Wparentheses-7.c: Likewise. * gcc.dg/precedence-1.c: Likewise. libcpp/ChangeLog: PR c/90885 * include/cpplib.h (BOL): Move macro to 1 << 12 since it is not used by C/C++'s unsigned char token flags. (DECIMAL_INT): New, using 1 << 6, so that it is visible as part of C/C++'s 8 bits of token flags. Signed-off-by: David Malcolm <dmalcolm@redhat.com>	2022-09-02 18:29:33 -04:00
Jakub Jelinek	0b8c57ed40	libcpp: Add -Winvalid-utf8 warning [PR106655] ... The following patch introduces a new warning - -Winvalid-utf8 similarly to what clang now has - to diagnose invalid UTF-8 byte sequences in comments, but not just in those, but also in string/character literals and outside of them. The warning is on by default when explicit -finput-charset=UTF-8 is used and C++23 compilation is requested and if -{,W}pedantic or -pedantic-errors it is actually a pedwarn. The reason it is on by default only for -finput-charset=UTF-8 is that the sources often are UTF-8, but sometimes could be some ASCII compatible single byte encoding where non-ASCII characters only appear in comments. So having the warning off by default is IMO desirable. The C++23 pedantic mode for when the source code is UTF-8 is -std=c++23 -pedantic-errors -finput-charset=UTF-8. 2022-09-01 Jakub Jelinek <jakub@redhat.com> PR c++/106655 libcpp/ * include/cpplib.h (struct cpp_options): Implement C++23 P2295R6 - Support for UTF-8 as a portable source file encoding. Add cpp_warn_invalid_utf8 and cpp_input_charset_explicit fields. (enum cpp_warning_reason): Add CPP_W_INVALID_UTF8 enumerator. * init.cc (cpp_create_reader): Initialize cpp_warn_invalid_utf8 and cpp_input_charset_explicit. * charset.cc (_cpp_valid_utf8): Adjust function comment. * lex.cc (UCS_LIMIT): Define. (utf8_continuation): New const variable. (utf8_signifier): Move earlier in the file. (_cpp_warn_invalid_utf8, _cpp_handle_multibyte_utf8): New functions. (_cpp_skip_block_comment): Handle -Winvalid-utf8 warning. (skip_line_comment): Likewise. (lex_raw_string, lex_string): Likewise. (_cpp_lex_direct): Likewise. gcc/ * doc/invoke.texi (-Winvalid-utf8): Document it. gcc/c-family/ * c.opt (-Winvalid-utf8): New warning. * c-opts.cc (c_common_handle_option) <case OPT_finput_charset_>: Set cpp_opts->cpp_input_charset_explicit. (c_common_post_options): If -finput-charset=UTF-8 is explicit in C++23, enable -Winvalid-utf8 by default and if -pedantic or -pedantic-errors, make it a pedwarn. gcc/testsuite/ * c-c++-common/cpp/Winvalid-utf8-1.c: New test. * c-c++-common/cpp/Winvalid-utf8-2.c: New test. * c-c++-common/cpp/Winvalid-utf8-3.c: New test. * g++.dg/cpp23/Winvalid-utf8-1.C: New test. * g++.dg/cpp23/Winvalid-utf8-2.C: New test. * g++.dg/cpp23/Winvalid-utf8-3.C: New test. * g++.dg/cpp23/Winvalid-utf8-4.C: New test. * g++.dg/cpp23/Winvalid-utf8-5.C: New test. * g++.dg/cpp23/Winvalid-utf8-6.C: New test. * g++.dg/cpp23/Winvalid-utf8-7.C: New test. * g++.dg/cpp23/Winvalid-utf8-8.C: New test. * g++.dg/cpp23/Winvalid-utf8-9.C: New test. * g++.dg/cpp23/Winvalid-utf8-10.C: New test. * g++.dg/cpp23/Winvalid-utf8-11.C: New test. * g++.dg/cpp23/Winvalid-utf8-12.C: New test.	2022-09-01 09:56:44 +02:00
Jakub Jelinek	e9dd050e0c	libcpp: Implement C++23 P2290R3 - Delimited escape sequences [PR106645] ... The following patch implements the C++23 P2290R3 paper. 2022-08-20 Jakub Jelinek <jakub@redhat.com> PR c++/106645 libcpp/ * include/cpplib.h (struct cpp_options): Implement P2290R3 - Delimited escape sequences. Add delimite_escape_seqs member. * init.cc (struct lang_flags): Likewise. (lang_defaults): Add delim column. (cpp_set_lang): Copy over delimite_escape_seqs. * charset.cc (extend_char_range): New function. (_cpp_valid_ucn): Use it. Handle delimited escape sequences. (convert_hex): Likewise. (convert_oct): Likewise. (convert_ucn): Use extend_char_range. (convert_escape): Call convert_oct even for \o. (_cpp_interpret_identifier): Handle delimited escape sequences. * lex.cc (get_bidi_ucn_1): Likewise. Add end argument, fill it in. (get_bidi_ucn): Adjust get_bidi_ucn_1 caller. Use end argument to compute num_bytes. gcc/testsuite/ * c-c++-common/cpp/delimited-escape-seq-1.c: New test. * c-c++-common/cpp/delimited-escape-seq-2.c: New test. * c-c++-common/cpp/delimited-escape-seq-3.c: New test. * c-c++-common/Wbidi-chars-24.c: New test. * gcc.dg/cpp/delimited-escape-seq-1.c: New test. * gcc.dg/cpp/delimited-escape-seq-2.c: New test. * g++.dg/cpp/delimited-escape-seq-1.C: New test. * g++.dg/cpp/delimited-escape-seq-2.C: New test.	2022-08-20 10:26:55 +02:00
Joseph Myers	d7c3000147	preprocessor: Support #warning for standard C2x ... ISO C2x standardizes the existing #warning extension. Arrange accordingly for it not to be diagnosed with -std=c2x -pedantic, but to be diagnosed with -Wc11-c2x-compat. Bootstrapped with no regressions for x86_64-pc-linux-gnu. gcc/testsuite/ * gcc.dg/cpp/c11-warning-1.c, gcc.dg/cpp/c11-warning-2.c, gcc.dg/cpp/c11-warning-3.c, gcc.dg/cpp/c11-warning-4.c, gcc.dg/cpp/c2x-warning-1.c, gcc.dg/cpp/c2x-warning-2.c, gcc.dg/cpp/gnu11-warning-1.c, gcc.dg/cpp/gnu11-warning-2.c, gcc.dg/cpp/gnu11-warning-3.c, gcc.dg/cpp/gnu11-warning-4.c, gcc.dg/cpp/gnu2x-warning-1.c, gcc.dg/cpp/gnu2x-warning-2.c: New tests. libcpp/ * include/cpplib.h (struct cpp_options): Add warning_directive. * init.cc (struct lang_flags, lang_defaults): Add warning_directive. * directives.cc (DIRECTIVE_TABLE): Mark #warning as STDC2X not EXTENSION. (directive_diagnostics): Diagnose #warning with -Wc11-c2x-compat, or with -pedantic for a standard not supporting #warning.	2022-08-18 23:01:01 +00:00
Tom Honermann	60468d6cd4	c++: Fix pragma suppression of -Wc++20-compat diagnostics [PR106423] ... Gcc's '#pragma GCC diagnostic' directives are processed in "early mode" (see handle_pragma_diagnostic_early) for the C++ frontend and, as such, require that the target diagnostic option be enabled for the preprocessor (see c_option_is_from_cpp_diagnostics). This change modifies the -Wc++20-compat option definition to register it as a preprocessor option so that its associated diagnostics can be suppressed. The changes also implicitly disable the option in C++20 and later modes. These changes are consistent with the definition of the -Wc++11-compat option. This support is motivated by the need to suppress the following diagnostic otherwise issued in C++17 and earlier modes due to the char8_t typedef present in the uchar.h header file in glibc 2.36. warning: identifier ‘char8_t’ is a keyword in C++20 [-Wc++20-compat] Tests are added to validate suppression of both -Wc++11-compat and -Wc++20-compat related diagnostics (fixes were only needed for the C++20 case). PR c++/106423 gcc/c-family/ChangeLog: * c-opts.cc (c_common_post_options): Disable -Wc++20-compat diagnostics in C++20 and later. * c.opt (Wc++20-compat): Enable hooks for the preprocessor. gcc/cp/ChangeLog: * parser.cc (cp_lexer_saving_tokens): Add comment regarding diagnostic requirements. gcc/testsuite/ChangeLog: * g++.dg/cpp0x/keywords2.C: New test. * g++.dg/cpp2a/keywords2.C: New test. libcpp/ChangeLog: * include/cpplib.h (cpp_warning_reason): Add CPP_W_CXX20_COMPAT. * init.cc (cpp_create_reader): Add cpp_warn_cxx20_compat.	2022-08-16 15:15:38 -04:00
Tom Honermann	053876cdbe	preprocessor/106426: Treat u8 character literals as unsigned in char8_t modes. ... This patch corrects handling of UTF-8 character literals in preprocessing directives so that they are treated as unsigned types in char8_t enabled C++ modes (C++17 with -fchar8_t or C++20 without -fno-char8_t). Previously, UTF-8 character literals were always treated as having the same type as ordinary character literals (signed or unsigned dependent on target or use of the -fsigned-char or -funsigned char options). PR preprocessor/106426 gcc/c-family/ChangeLog: * c-opts.cc (c_common_post_options): Assign cpp_opts->unsigned_utf8char subject to -fchar8_t, -fsigned-char, and/or -funsigned-char. gcc/testsuite/ChangeLog: * g++.dg/ext/char8_t-char-literal-1.C: Check signedness of u8 literals. * g++.dg/ext/char8_t-char-literal-2.C: Check signedness of u8 literals. libcpp/ChangeLog: * charset.cc (narrow_str_to_charconst): Set signedness of CPP_UTF8CHAR literals based on unsigned_utf8char. * include/cpplib.h (cpp_options): Add unsigned_utf8char. * init.cc (cpp_create_reader): Initialize unsigned_utf8char.	2022-08-08 19:50:40 +00:00
Jonathan Wakely	f858fe7a8b	libcpp: Improve encapsulation of label_text ... This adjusts the API of label_text so that the data members are private and cannot be modified by callers. Add accessors for them instead, and make the accessors const-correct. Also rename moved_from () to the more idiomatic release (). Also remove the unused take_or_copy () member function which has confusing ownership semantics. gcc/analyzer/ChangeLog: * call-info.cc (call_info::print): Adjust to new label_text API. * checker-path.cc (checker_event::dump): Likewise. (region_creation_event::get_desc): Likewise. (state_change_event::get_desc): Likewise. (superedge_event::should_filter_p): Likewise. (start_cfg_edge_event::get_desc): Likewise. (call_event::get_desc): Likewise. (return_event::get_desc): Likewise. (warning_event::get_desc): Likewise. (checker_path::dump): Likewise. (checker_path::debug): Likewise. * diagnostic-manager.cc (diagnostic_manager::prune_for_sm_diagnostic): Likewise. (diagnostic_manager::prune_interproc_events): Likewise. * engine.cc (feasibility_state::maybe_update_for_edge): Likewise. * program-state.cc (sm_state_map::to_json): Likewise. * region-model-impl-calls.cc (region_model::impl_call_analyzer_describe): Likewise. (region_model::impl_call_analyzer_dump_capacity): Likewise. * region.cc (region::to_json): Likewise. * sm-malloc.cc (inform_nonnull_attribute): Likewise. * store.cc (binding_map::to_json): Likewise. (store::to_json): Likewise. * supergraph.cc (superedge::dump): Likewise. * svalue.cc (svalue::to_json): Likewise. gcc/c-family/ChangeLog: * c-format.cc (class range_label_for_format_type_mismatch): Adjust to new label_text API. gcc/ChangeLog: * diagnostic-format-json.cc (json_from_location_range): Adjust to new label_text API. * diagnostic-format-sarif.cc (sarif_builder::make_location_object): Likewise. * diagnostic-show-locus.cc (struct pod_label_text): Likewise. (layout::print_any_labels): Likewise. * tree-diagnostic-path.cc (class path_label): Likewise. (struct event_range): Likewise. (default_tree_diagnostic_path_printer): Likewise. (default_tree_make_json_for_path): Likewise. libcpp/ChangeLog: * include/line-map.h (label_text::take_or_copy): Remove. (label_text::moved_from): Rename to release. (label_text::m_buffer, label_text::m_owned): Make private. (label_text::get, label_text::is_owned): New accessors.	2022-07-15 09:40:47 +01:00
Marek Polacek	86a15b266a	libcpp: Avoid pessimizing std::move [PR106272] ... std::move in a return statement can prevent the NRVO: <https://developers.redhat.com/blog/2019/04/12/understanding-when-not-to-stdmove-in-c> PR106272 reports that we have two such cases in class label_text's member functions. We have -Wpessimizing-move that's supposed to detect problematic std::move uses, but in this case it didn't trigger. I've filed PR106276 to track that. PR preprocessor/106272 libcpp/ChangeLog: * include/line-map.h (class label_text): Don't std::move in a return statement.	2022-07-13 14:22:09 -04:00
David Malcolm	a8dce13c07	Convert label_text to C++11 move semantics ... libcpp's class label_text stores a char * for a string and a flag saying whether it owns the buffer. I added this class before we could use C++11, and so to avoid lots of copying it required an explicit call to label_text::maybe_free to potentially free the buffer. Now that we can use C++11, this patch removes label_text::maybe_free in favor of doing the cleanup in the destructor, and using C++ move semantics to avoid any copying. This allows lots of messy cleanup code to be eliminated in favor of implicit destruction (mostly in the analyzer). No functional change intended. gcc/analyzer/ChangeLog: * call-info.cc (call_info::print): Update for removal of label_text::maybe_free in favor of automatic memory management. * checker-path.cc (checker_event::dump): Likewise. (checker_event::prepare_for_emission): Likewise. (state_change_event::get_desc): Likewise. (superedge_event::should_filter_p): Likewise. (start_cfg_edge_event::get_desc): Likewise. (warning_event::get_desc): Likewise. (checker_path::dump): Likewise. (checker_path::debug): Likewise. * diagnostic-manager.cc (diagnostic_manager::prune_for_sm_diagnostic): Likewise. (diagnostic_manager::prune_interproc_events): Likewise. * program-state.cc (sm_state_map::to_json): Likewise. * region.cc (region::to_json): Likewise. * sm-malloc.cc (inform_nonnull_attribute): Likewise. * store.cc (binding_map::to_json): Likewise. (store::to_json): Likewise. * svalue.cc (svalue::to_json): Likewise. gcc/c-family/ChangeLog: * c-format.cc (range_label_for_format_type_mismatch::get_text): Update for removal of label_text::maybe_free in favor of automatic memory management. gcc/ChangeLog: * diagnostic-format-json.cc (json_from_location_range): Update for removal of label_text::maybe_free in favor of automatic memory management. * diagnostic-format-sarif.cc (sarif_builder::make_location_object): Likewise. * diagnostic-show-locus.cc (struct pod_label_text): New. (class line_label): Convert m_text from label_text to pod_label_text. (layout::print_any_labels): Move "text" to the line_label. * tree-diagnostic-path.cc (path_label::get_text): Update for removal of label_text::maybe_free in favor of automatic memory management. (event_range::print): Likewise. (default_tree_diagnostic_path_printer): Likewise. (default_tree_make_json_for_path): Likewise. libcpp/ChangeLog: * include/line-map.h: Include <utility>. (class label_text): Delete maybe_free method in favor of a destructor. Add move ctor and assignment operator. Add deletion of the copy ctor and copy-assignment operator. Rename field m_caller_owned to m_owned. Add std::move where necessary; add moved_from member function. Signed-off-by: David Malcolm <dmalcolm@redhat.com>	2022-07-07 15:50:26 -04:00
Marek Polacek	ae36f83963	preprocessor: -Wbidi-chars and UCNs [PR104030] ... Stephan Bergmann reported that our -Wbidi-chars breaks the build of LibreOffice because we warn about UCNs even when their usage is correct: LibreOffice constructs strings piecewise, as in: aText = u"\u202D" + aText; and warning about that is overzealous. Since no editor (AFAIK) interprets UCNs to show them as Unicode characters, there's less risk in misinterpreting them, and so perhaps we shouldn't warn about them by default. However, identifiers containing UCNs or programs generating other programs could still cause confusion, so I'm keeping the UCN checking. To turn it on, you just need to use -Wbidi-chars=unpaired,ucn or -Wbidi-chars=any,ucn. The implementation is done by using the new EnumSet feature. PR preprocessor/104030 gcc/c-family/ChangeLog: * c.opt (Wbidi-chars): Mark as EnumSet. Also accept =ucn. gcc/ChangeLog: * doc/invoke.texi: Update documentation for -Wbidi-chars. libcpp/ChangeLog: * include/cpplib.h (enum cpp_bidirectional_level): Add bidirectional_ucn. Set values explicitly. * internal.h (cpp_reader): Adjust warn_bidi_p. * lex.cc (maybe_warn_bidi_on_close): Don't warn about UCNs unless UCN checking is on. (maybe_warn_bidi_on_char): Likewise. gcc/testsuite/ChangeLog: * c-c++-common/Wbidi-chars-10.c: Turn on UCN checking. * c-c++-common/Wbidi-chars-11.c: Likewise. * c-c++-common/Wbidi-chars-14.c: Likewise. * c-c++-common/Wbidi-chars-16.c: Likewise. * c-c++-common/Wbidi-chars-17.c: Likewise. * c-c++-common/Wbidi-chars-4.c: Likewise. * c-c++-common/Wbidi-chars-5.c: Likewise. * c-c++-common/Wbidi-chars-6.c: Likewise. * c-c++-common/Wbidi-chars-7.c: Likewise. * c-c++-common/Wbidi-chars-8.c: Likewise. * c-c++-common/Wbidi-chars-9.c: Likewise. * c-c++-common/Wbidi-chars-ranges.c: Likewise. * c-c++-common/Wbidi-chars-18.c: New test. * c-c++-common/Wbidi-chars-19.c: New test. * c-c++-common/Wbidi-chars-20.c: New test. * c-c++-common/Wbidi-chars-21.c: New test. * c-c++-common/Wbidi-chars-22.c: New test. * c-c++-common/Wbidi-chars-23.c: New test.	2022-01-24 17:48:23 -05:00
Richard Biener	4288b57aff	pack fields in line-map data structures ... As pointed out by pahole. 2022-01-18 Richard Biener <rguenther@suse.de> libcpp/ * include/line-map.h (class line_maps): Re-arrange fields to minimize padding. (class rich_location): Likewise. * line-map.cc (rich_location::rich_location): Adjust.	2022-01-18 14:33:01 +01:00
Martin Liska	e53b6e564a	Change references of .c files to .cc files ... ChangeLog: * MAINTAINERS: Rename .c names to .cc. contrib/ChangeLog: * filter-clang-warnings.py: Rename .c names to .cc. * gcc_update: Likewise. * paranoia.cc: Likewise. contrib/header-tools/ChangeLog: * README: Rename .c names to .cc. gcc/ChangeLog: * Makefile.in: Rename .c names to .cc. * alias.h: Likewise. * asan.cc: Likewise. * auto-profile.h: Likewise. * basic-block.h (struct basic_block_d): Likewise. * btfout.cc: Likewise. * builtins.cc (expand_builtin_longjmp): Likewise. (validate_arg): Likewise. (access_ref::offset_bounded): Likewise. * caller-save.cc (reg_restore_code): Likewise. (setup_save_areas): Likewise. * calls.cc (initialize_argument_information): Likewise. (expand_call): Likewise. (emit_library_call_value_1): Likewise. * cfg-flags.def (RTL): Likewise. (SIBCALL): Likewise. (CAN_FALLTHRU): Likewise. * cfganal.cc (post_order_compute): Likewise. * cfgcleanup.cc (try_simplify_condjump): Likewise. (merge_blocks_move_predecessor_nojumps): Likewise. (merge_blocks_move_successor_nojumps): Likewise. (merge_blocks_move): Likewise. (old_insns_match_p): Likewise. (try_crossjump_bb): Likewise. * cfgexpand.cc (expand_gimple_stmt): Likewise. * cfghooks.cc (split_block_before_cond_jump): Likewise. (profile_record_check_consistency): Likewise. * cfghooks.h: Likewise. * cfgrtl.cc (pass_free_cfg::execute): Likewise. (rtl_can_merge_blocks): Likewise. (try_redirect_by_replacing_jump): Likewise. (make_pass_outof_cfg_layout_mode): Likewise. (cfg_layout_can_merge_blocks_p): Likewise. * cgraph.cc (release_function_body): Likewise. (cgraph_node::get_fun): Likewise. * cgraph.h (struct cgraph_node): Likewise. (asmname_hasher::equal): Likewise. (cgraph_inline_failed_type): Likewise. (thunk_adjust): Likewise. (dump_callgraph_transformation): Likewise. (record_references_in_initializer): Likewise. (ipa_discover_variable_flags): Likewise. * cgraphclones.cc (GTY): Likewise. * cgraphunit.cc (symbol_table::finalize_compilation_unit): Likewise. * collect-utils.h (GCC_COLLECT_UTILS_H): Likewise. * collect2-aix.h (GCC_COLLECT2_AIX_H): Likewise. * collect2.cc (maybe_run_lto_and_relink): Likewise. * combine-stack-adj.cc: Likewise. * combine.cc (setup_incoming_promotions): Likewise. (combine_simplify_rtx): Likewise. (count_rtxs): Likewise. * common.opt: Likewise. * common/config/aarch64/aarch64-common.cc: Likewise. * common/config/arm/arm-common.cc (arm_asm_auto_mfpu): Likewise. * common/config/avr/avr-common.cc: Likewise. * common/config/i386/i386-isas.h (struct _isa_names_table): Likewise. * conditions.h: Likewise. * config.gcc: Likewise. * config/aarch64/aarch64-builtins.cc (aarch64_resolve_overloaded_memtag): Likewise. * config/aarch64/aarch64-protos.h (aarch64_classify_address): Likewise. (aarch64_get_extension_string_for_isa_flags): Likewise. * config/aarch64/aarch64-sve-builtins.cc (function_builder::add_function): Likewise. * config/aarch64/aarch64.cc (aarch64_regmode_natural_size): Likewise. (aarch64_sched_first_cycle_multipass_dfa_lookahead): Likewise. (aarch64_option_valid_attribute_p): Likewise. (aarch64_short_vector_p): Likewise. (aarch64_float_const_representable_p): Likewise. * config/aarch64/aarch64.h (DBX_REGISTER_NUMBER): Likewise. (ASM_OUTPUT_POOL_EPILOGUE): Likewise. (GTY): Likewise. * config/aarch64/cortex-a57-fma-steering.cc: Likewise. * config/aarch64/driver-aarch64.cc (contains_core_p): Likewise. * config/aarch64/t-aarch64: Likewise. * config/aarch64/x-aarch64: Likewise. * config/aarch64/x-darwin: Likewise. * config/alpha/alpha-protos.h: Likewise. * config/alpha/alpha.cc (alpha_scalar_mode_supported_p): Likewise. * config/alpha/alpha.h (LONG_DOUBLE_TYPE_SIZE): Likewise. (enum reg_class): Likewise. * config/alpha/alpha.md: Likewise. * config/alpha/driver-alpha.cc (AMASK_LOCKPFTCHOK): Likewise. * config/alpha/x-alpha: Likewise. * config/arc/arc-protos.h (arc_eh_uses): Likewise. * config/arc/arc.cc (ARC_OPT): Likewise. (arc_ccfsm_advance): Likewise. (arc_arg_partial_bytes): Likewise. (conditionalize_nonjump): Likewise. * config/arc/arc.md: Likewise. * config/arc/builtins.def: Likewise. * config/arc/t-arc: Likewise. * config/arm/arm-c.cc (arm_resolve_overloaded_builtin): Likewise. (arm_pragma_target_parse): Likewise. * config/arm/arm-protos.h (save_restore_target_globals): Likewise. (arm_cpu_cpp_builtins): Likewise. * config/arm/arm.cc (vfp3_const_double_index): Likewise. (shift_op): Likewise. (thumb2_final_prescan_insn): Likewise. (arm_final_prescan_insn): Likewise. (arm_asm_output_labelref): Likewise. (arm_small_register_classes_for_mode_p): Likewise. * config/arm/arm.h: Likewise. * config/arm/arm.md: Likewise. * config/arm/driver-arm.cc: Likewise. * config/arm/symbian.h: Likewise. * config/arm/t-arm: Likewise. * config/arm/thumb1.md: Likewise. * config/arm/x-arm: Likewise. * config/avr/avr-c.cc (avr_register_target_pragmas): Likewise. * config/avr/avr-fixed.md: Likewise. * config/avr/avr-log.cc (avr_log_vadump): Likewise. * config/avr/avr-mcus.def: Likewise. * config/avr/avr-modes.def (FRACTIONAL_INT_MODE): Likewise. * config/avr/avr-passes.def (INSERT_PASS_BEFORE): Likewise. * config/avr/avr-protos.h (make_avr_pass_casesi): Likewise. * config/avr/avr.cc (avr_option_override): Likewise. (avr_build_builtin_va_list): Likewise. (avr_mode_dependent_address_p): Likewise. (avr_function_arg_advance): Likewise. (avr_asm_output_aligned_decl_common): Likewise. * config/avr/avr.h (RETURN_ADDR_RTX): Likewise. (SUPPORTS_INIT_PRIORITY): Likewise. * config/avr/avr.md: Likewise. * config/avr/builtins.def: Likewise. * config/avr/gen-avr-mmcu-specs.cc (IN_GEN_AVR_MMCU_TEXI): Likewise. * config/avr/gen-avr-mmcu-texi.cc (IN_GEN_AVR_MMCU_TEXI): Likewise. (main): Likewise. * config/avr/t-avr: Likewise. * config/bfin/bfin.cc (frame_related_constant_load): Likewise. * config/bpf/bpf-protos.h (GCC_BPF_PROTOS_H): Likewise. * config/bpf/bpf.h (enum reg_class): Likewise. * config/bpf/t-bpf: Likewise. * config/c6x/c6x-protos.h (GCC_C6X_PROTOS_H): Likewise. * config/cr16/cr16-protos.h: Likewise. * config/cris/cris.cc (cris_address_cost): Likewise. (cris_side_effect_mode_ok): Likewise. (cris_init_machine_status): Likewise. (cris_emit_movem_store): Likewise. * config/cris/cris.h (INDEX_REG_CLASS): Likewise. (enum reg_class): Likewise. (struct cum_args): Likewise. * config/cris/cris.opt: Likewise. * config/cris/sync.md: Likewise. * config/csky/csky.cc (csky_expand_prologue): Likewise. * config/darwin-c.cc: Likewise. * config/darwin-f.cc: Likewise. * config/darwin-sections.def (zobj_const_section): Likewise. * config/darwin.cc (output_objc_section_asm_op): Likewise. (fprintf): Likewise. * config/darwin.h (GTY): Likewise. * config/elfos.h: Likewise. * config/epiphany/epiphany-sched.md: Likewise. * config/epiphany/epiphany.cc (epiphany_function_value): Likewise. * config/epiphany/epiphany.h (GTY): Likewise. (NO_FUNCTION_CSE): Likewise. * config/epiphany/mode-switch-use.cc: Likewise. * config/epiphany/predicates.md: Likewise. * config/epiphany/t-epiphany: Likewise. * config/fr30/fr30-protos.h: Likewise. * config/frv/frv-protos.h: Likewise. * config/frv/frv.cc (TLS_BIAS): Likewise. * config/frv/frv.h (ASM_OUTPUT_ALIGNED_LOCAL): Likewise. * config/ft32/ft32-protos.h: Likewise. * config/gcn/gcn-hsa.h (ASM_APP_OFF): Likewise. * config/gcn/gcn.cc (gcn_init_libfuncs): Likewise. * config/gcn/mkoffload.cc (copy_early_debug_info): Likewise. * config/gcn/t-gcn-hsa: Likewise. * config/gcn/t-omp-device: Likewise. * config/h8300/h8300-protos.h (GCC_H8300_PROTOS_H): Likewise. (same_cmp_following_p): Likewise. * config/h8300/h8300.cc (F): Likewise. * config/h8300/h8300.h (struct cum_arg): Likewise. (BRANCH_COST): Likewise. * config/i386/cygming.h (DEFAULT_PCC_STRUCT_RETURN): Likewise. * config/i386/djgpp.h (TARGET_ASM_LTO_END): Likewise. * config/i386/dragonfly.h (NO_PROFILE_COUNTERS): Likewise. * config/i386/driver-i386.cc (detect_caches_intel): Likewise. * config/i386/freebsd.h (NO_PROFILE_COUNTERS): Likewise. * config/i386/i386-c.cc (ix86_target_macros): Likewise. * config/i386/i386-expand.cc (get_mode_wider_vector): Likewise. * config/i386/i386-options.cc (ix86_set_func_type): Likewise. * config/i386/i386-protos.h (ix86_extract_perm_from_pool_constant): Likewise. (ix86_register_pragmas): Likewise. (ix86_d_has_stdcall_convention): Likewise. (i386_pe_seh_init_sections): Likewise. * config/i386/i386.cc (ix86_function_arg_regno_p): Likewise. (ix86_function_value_regno_p): Likewise. (ix86_compute_frame_layout): Likewise. (legitimize_pe_coff_symbol): Likewise. (output_pic_addr_const): Likewise. * config/i386/i386.h (defined): Likewise. (host_detect_local_cpu): Likewise. (CONSTANT_ADDRESS_P): Likewise. (DEFAULT_LARGE_SECTION_THRESHOLD): Likewise. (struct machine_frame_state): Likewise. * config/i386/i386.md: Likewise. * config/i386/lynx.h (ASM_OUTPUT_ALIGN): Likewise. * config/i386/mmx.md: Likewise. * config/i386/sse.md: Likewise. * config/i386/t-cygming: Likewise. * config/i386/t-djgpp: Likewise. * config/i386/t-gnu-property: Likewise. * config/i386/t-i386: Likewise. * config/i386/t-intelmic: Likewise. * config/i386/t-omp-device: Likewise. * config/i386/winnt-cxx.cc (i386_pe_type_dllimport_p): Likewise. (i386_pe_adjust_class_at_definition): Likewise. * config/i386/winnt.cc (gen_stdcall_or_fastcall_suffix): Likewise. (i386_pe_mangle_decl_assembler_name): Likewise. (i386_pe_encode_section_info): Likewise. * config/i386/x-cygwin: Likewise. * config/i386/x-darwin: Likewise. * config/i386/x-i386: Likewise. * config/i386/x-mingw32: Likewise. * config/i386/x86-tune-sched-core.cc: Likewise. * config/i386/x86-tune.def: Likewise. * config/i386/xm-djgpp.h (STANDARD_STARTFILE_PREFIX_1): Likewise. * config/ia64/freebsd.h: Likewise. * config/ia64/hpux.h (REGISTER_TARGET_PRAGMAS): Likewise. * config/ia64/ia64-protos.h (ia64_except_unwind_info): Likewise. * config/ia64/ia64.cc (ia64_function_value_regno_p): Likewise. (ia64_secondary_reload_class): Likewise. (bundling): Likewise. * config/ia64/ia64.h: Likewise. * config/ia64/ia64.md: Likewise. * config/ia64/predicates.md: Likewise. * config/ia64/sysv4.h: Likewise. * config/ia64/t-ia64: Likewise. * config/iq2000/iq2000.h (FUNCTION_MODE): Likewise. * config/iq2000/iq2000.md: Likewise. * config/linux.h (TARGET_HAS_BIONIC): Likewise. (if): Likewise. * config/m32c/m32c.cc (m32c_function_needs_enter): Likewise. * config/m32c/m32c.h (MAX_REGS_PER_ADDRESS): Likewise. * config/m32c/t-m32c: Likewise. * config/m32r/m32r-protos.h: Likewise. * config/m32r/m32r.cc (m32r_print_operand): Likewise. * config/m32r/m32r.h: Likewise. * config/m32r/m32r.md: Likewise. * config/m68k/m68k-isas.def: Likewise. * config/m68k/m68k-microarchs.def: Likewise. * config/m68k/m68k-protos.h (strict_low_part_peephole_ok): Likewise. (m68k_epilogue_uses): Likewise. * config/m68k/m68k.cc (m68k_call_tls_get_addr): Likewise. (m68k_sched_adjust_cost): Likewise. (m68k_sched_md_init): Likewise. * config/m68k/m68k.h (__transfer_from_trampoline): Likewise. (enum m68k_function_kind): Likewise. * config/m68k/m68k.md: Likewise. * config/m68k/m68kemb.h: Likewise. * config/m68k/uclinux.h (ENDFILE_SPEC): Likewise. * config/mcore/mcore-protos.h: Likewise. * config/mcore/mcore.cc (mcore_expand_insv): Likewise. (mcore_expand_prolog): Likewise. * config/mcore/mcore.h (TARGET_MCORE): Likewise. * config/mcore/mcore.md: Likewise. * config/microblaze/microblaze-protos.h: Likewise. * config/microblaze/microblaze.cc (microblaze_legitimate_pic_operand): Likewise. (microblaze_function_prologue): Likewise. (microblaze_function_epilogue): Likewise. (microblaze_select_section): Likewise. (microblaze_asm_output_mi_thunk): Likewise. (microblaze_eh_return): Likewise. * config/microblaze/microblaze.h: Likewise. * config/microblaze/microblaze.md: Likewise. * config/microblaze/t-microblaze: Likewise. * config/mips/driver-native.cc: Likewise. * config/mips/loongson2ef.md: Likewise. * config/mips/mips-protos.h (mips_expand_vec_cmp_expr): Likewise. * config/mips/mips.cc (mips_rtx_costs): Likewise. (mips_output_filename): Likewise. (mips_output_function_prologue): Likewise. (mips_output_function_epilogue): Likewise. (mips_output_mi_thunk): Likewise. * config/mips/mips.h: Likewise. * config/mips/mips.md: Likewise. * config/mips/t-mips: Likewise. * config/mips/x-native: Likewise. * config/mmix/mmix-protos.h: Likewise. * config/mmix/mmix.cc (mmix_option_override): Likewise. (mmix_dbx_register_number): Likewise. (mmix_expand_prologue): Likewise. * config/mmix/mmix.h: Likewise. * config/mmix/mmix.md: Likewise. * config/mmix/predicates.md: Likewise. * config/mn10300/mn10300.cc (mn10300_symbolic_operand): Likewise. (mn10300_legitimate_pic_operand_p): Likewise. * config/mn10300/mn10300.h (enum reg_class): Likewise. (NO_FUNCTION_CSE): Likewise. * config/moxie/moxie-protos.h: Likewise. * config/moxie/uclinux.h (TARGET_LIBC_HAS_FUNCTION): Likewise. * config/msp430/msp430-devices.cc (extract_devices_dir_from_exec_prefix): Likewise. * config/msp430/msp430.cc (msp430_gimplify_va_arg_expr): Likewise. (msp430_incoming_return_addr_rtx): Likewise. * config/msp430/msp430.h (msp430_get_linker_devices_include_path): Likewise. * config/msp430/t-msp430: Likewise. * config/nds32/nds32-cost.cc (nds32_rtx_costs_speed_prefer): Likewise. (nds32_rtx_costs_size_prefer): Likewise. (nds32_init_rtx_costs): Likewise. * config/nds32/nds32-doubleword.md: Likewise. * config/nds32/nds32.cc (nds32_memory_move_cost): Likewise. (nds32_builtin_decl): Likewise. * config/nds32/nds32.h (enum nds32_16bit_address_type): Likewise. (enum nds32_isr_nested_type): Likewise. (enum reg_class): Likewise. * config/nds32/predicates.md: Likewise. * config/nds32/t-nds32: Likewise. * config/nios2/nios2.cc (nios2_pragma_target_parse): Likewise. * config/nvptx/nvptx-protos.h: Likewise. * config/nvptx/nvptx.cc (nvptx_goacc_expand_var_decl): Likewise. * config/nvptx/nvptx.h (TARGET_CPU_CPP_BUILTINS): Likewise. * config/nvptx/t-nvptx: Likewise. * config/nvptx/t-omp-device: Likewise. * config/pa/elf.h: Likewise. * config/pa/pa-linux.h (GLOBAL_ASM_OP): Likewise. * config/pa/pa-netbsd.h (GLOBAL_ASM_OP): Likewise. * config/pa/pa-openbsd.h (TARGET_ASM_GLOBALIZE_LABEL): Likewise. * config/pa/pa-protos.h (pa_eh_return_handler_rtx): Likewise. (pa_legitimize_reload_address): Likewise. (pa_can_use_return_insn): Likewise. * config/pa/pa.cc (mem_shadd_or_shadd_rtx_p): Likewise. (som_output_text_section_asm_op): Likewise. * config/pa/pa.h (PROFILE_BEFORE_PROLOGUE): Likewise. * config/pa/pa.md: Likewise. * config/pa/som.h: Likewise. * config/pa/t-pa: Likewise. * config/pdp11/pdp11.cc (decode_pdp11_d): Likewise. * config/pdp11/pdp11.h: Likewise. * config/pdp11/pdp11.md: Likewise. * config/pdp11/t-pdp11: Likewise. * config/pru/pru.md: Likewise. * config/pru/t-pru: Likewise. * config/riscv/riscv-protos.h (NUM_SYMBOL_TYPES): Likewise. (riscv_gpr_save_operation_p): Likewise. (riscv_d_register_target_info): Likewise. (riscv_init_builtins): Likewise. * config/riscv/riscv.cc (riscv_output_mi_thunk): Likewise. * config/riscv/riscv.h (CSW_MAX_OFFSET): Likewise. * config/riscv/t-riscv: Likewise. * config/rl78/rl78.cc (rl78_asm_ctor_dtor): Likewise. * config/rl78/t-rl78: Likewise. * config/rs6000/aix.h: Likewise. * config/rs6000/aix71.h (ASM_SPEC_COMMON): Likewise. * config/rs6000/aix72.h (ASM_SPEC_COMMON): Likewise. * config/rs6000/aix73.h (ASM_SPEC_COMMON): Likewise. * config/rs6000/darwin.h (TARGET_ASM_GLOBALIZE_LABEL): Likewise. * config/rs6000/driver-rs6000.cc: Likewise. * config/rs6000/freebsd.h: Likewise. * config/rs6000/freebsd64.h: Likewise. * config/rs6000/lynx.h (ASM_OUTPUT_ALIGN): Likewise. * config/rs6000/rbtree.cc: Likewise. * config/rs6000/rbtree.h: Likewise. * config/rs6000/rs6000-c.cc (rs6000_target_modify_macros): Likewise. * config/rs6000/rs6000-call.cc (rs6000_invalid_builtin): Likewise. (rs6000_expand_builtin): Likewise. (rs6000_init_builtins): Likewise. * config/rs6000/rs6000-cpus.def: Likewise. * config/rs6000/rs6000-gen-builtins.cc (write_init_ovld_table): Likewise. * config/rs6000/rs6000-internal.h (ALTIVEC_REG_BIT): Likewise. (quad_address_offset_p): Likewise. * config/rs6000/rs6000-logue.cc (interesting_frame_related_regno): Likewise. (rs6000_emit_epilogue): Likewise. * config/rs6000/rs6000-overload.def: Likewise. * config/rs6000/rs6000-p8swap.cc: Likewise. * config/rs6000/rs6000-protos.h (GCC_RS6000_PROTOS_H): Likewise. (rs6000_const_f32_to_i32): Likewise. * config/rs6000/rs6000.cc (legitimate_lo_sum_address_p): Likewise. (rs6000_debug_legitimize_address): Likewise. (rs6000_mode_dependent_address): Likewise. (rs6000_adjust_priority): Likewise. (rs6000_c_mode_for_suffix): Likewise. * config/rs6000/rs6000.h (defined): Likewise. (LONG_DOUBLE_TYPE_SIZE): Likewise. * config/rs6000/rs6000.md: Likewise. * config/rs6000/sysv4.h: Likewise. * config/rs6000/t-linux: Likewise. * config/rs6000/t-linux64: Likewise. * config/rs6000/t-rs6000: Likewise. * config/rs6000/x-darwin: Likewise. * config/rs6000/x-darwin64: Likewise. * config/rs6000/x-rs6000: Likewise. * config/rs6000/xcoff.h (ASM_OUTPUT_LABELREF): Likewise. * config/rx/rx.cc (rx_expand_builtin): Likewise. * config/s390/constraints.md: Likewise. * config/s390/driver-native.cc: Likewise. * config/s390/htmxlintrin.h: Likewise. * config/s390/s390-builtins.def (B_DEF): Likewise. (OB_DEF_VAR): Likewise. * config/s390/s390-builtins.h: Likewise. * config/s390/s390-c.cc: Likewise. * config/s390/s390-opts.h: Likewise. * config/s390/s390-protos.h (s390_check_symref_alignment): Likewise. (s390_register_target_pragmas): Likewise. * config/s390/s390.cc (s390_init_builtins): Likewise. (s390_expand_plus_operand): Likewise. (s390_expand_atomic): Likewise. (s390_valid_target_attribute_inner_p): Likewise. * config/s390/s390.h (LONG_DOUBLE_TYPE_SIZE): Likewise. * config/s390/s390.md: Likewise. * config/s390/t-s390: Likewise. * config/s390/vx-builtins.md: Likewise. * config/s390/x-native: Likewise. * config/sh/divtab-sh4-300.cc (main): Likewise. * config/sh/divtab-sh4.cc (main): Likewise. * config/sh/divtab.cc (main): Likewise. * config/sh/elf.h: Likewise. * config/sh/sh-protos.h (sh_fsca_int2sf): Likewise. * config/sh/sh.cc (SYMBOL_FLAG_FUNCVEC_FUNCTION): Likewise. (sh_struct_value_rtx): Likewise. (sh_remove_reg_dead_or_unused_notes): Likewise. * config/sh/sh.h (MIN_UNITS_PER_WORD): Likewise. * config/sh/t-sh: Likewise. * config/sol2-protos.h (solaris_override_options): Likewise. * config/sol2.h: Likewise. * config/sparc/driver-sparc.cc: Likewise. * config/sparc/freebsd.h: Likewise. * config/sparc/sparc-protos.h (make_pass_work_around_errata): Likewise. * config/sparc/sparc.cc (sparc_output_mi_thunk): Likewise. (sparc_asan_shadow_offset): Likewise. * config/sparc/sparc.h: Likewise. * config/sparc/sparc.md: Likewise. * config/sparc/t-sparc: Likewise. * config/sparc/x-sparc: Likewise. * config/stormy16/stormy16.cc (xstormy16_mode_dependent_address_p): Likewise. * config/t-darwin: Likewise. * config/t-dragonfly: Likewise. * config/t-freebsd: Likewise. * config/t-glibc: Likewise. * config/t-linux: Likewise. * config/t-netbsd: Likewise. * config/t-openbsd: Likewise. * config/t-pnt16-warn: Likewise. * config/t-sol2: Likewise. * config/t-vxworks: Likewise. * config/t-winnt: Likewise. * config/tilegx/t-tilegx: Likewise. * config/tilegx/tilegx-c.cc: Likewise. * config/tilegx/tilegx-protos.h (tilegx_function_profiler): Likewise. * config/tilegx/tilegx.md: Likewise. * config/tilepro/t-tilepro: Likewise. * config/tilepro/tilepro-c.cc: Likewise. * config/v850/t-v850: Likewise. * config/v850/v850-protos.h: Likewise. * config/v850/v850.cc (F): Likewise. * config/v850/v850.h (enum reg_class): Likewise. (SLOW_BYTE_ACCESS): Likewise. * config/vax/vax.cc (vax_mode_dependent_address_p): Likewise. * config/vax/vax.h (enum reg_class): Likewise. * config/vax/vax.md: Likewise. * config/visium/visium.cc (visium_legitimate_address_p): Likewise. * config/visium/visium.h: Likewise. * config/vms/t-vms: Likewise. * config/vms/vms-crtlmap.map: Likewise. * config/vms/vms-protos.h (vms_c_get_vms_ver): Likewise. * config/vx-common.h: Likewise. * config/x-darwin: Likewise. * config/x-hpux: Likewise. * config/x-linux: Likewise. * config/x-netbsd: Likewise. * config/x-openbsd: Likewise. * config/x-solaris: Likewise. * config/xtensa/xtensa-protos.h (xtensa_mem_offset): Likewise. * config/xtensa/xtensa.cc (xtensa_option_override): Likewise. * config/xtensa/xtensa.h: Likewise. * configure.ac: Likewise. * context.cc: Likewise. * convert.h: Likewise. * coretypes.h: Likewise. * coverage.cc: Likewise. * coverage.h: Likewise. * cppdefault.h (struct default_include): Likewise. * cprop.cc (local_cprop_pass): Likewise. (one_cprop_pass): Likewise. * cse.cc (hash_rtx_cb): Likewise. (fold_rtx): Likewise. * ctfc.h (ctfc_get_num_vlen_bytes): Likewise. * data-streamer.h (bp_unpack_var_len_int): Likewise. (streamer_write_widest_int): Likewise. * dbgcnt.def: Likewise. * dbxout.cc (dbxout_early_global_decl): Likewise. (dbxout_common_check): Likewise. * dbxout.h: Likewise. * debug.h (struct gcc_debug_hooks): Likewise. (dump_go_spec_init): Likewise. * df-core.cc: Likewise. * df-scan.cc (df_insn_info_delete): Likewise. (df_insn_delete): Likewise. * df.h (debug_df_chain): Likewise. (can_move_insns_across): Likewise. * dfp.cc (decimal_from_binary): Likewise. * diagnostic-color.cc: Likewise. * diagnostic-event-id.h: Likewise. * diagnostic-show-locus.cc (test_one_liner_labels): Likewise. * diagnostic.cc (bt_callback): Likewise. (num_digits): Likewise. * doc/avr-mmcu.texi: Likewise. * doc/cfg.texi: Likewise. * doc/contrib.texi: Likewise. * doc/cppinternals.texi: Likewise. * doc/extend.texi: Likewise. * doc/generic.texi: Likewise. * doc/gimple.texi: Likewise. * doc/gty.texi: Likewise. * doc/invoke.texi: Likewise. * doc/loop.texi: Likewise. * doc/lto.texi: Likewise. * doc/match-and-simplify.texi: Likewise. * doc/md.texi: Likewise. * doc/optinfo.texi: Likewise. * doc/options.texi: Likewise. * doc/passes.texi: Likewise. * doc/plugins.texi: Likewise. * doc/rtl.texi: Likewise. * doc/sourcebuild.texi: Likewise. * doc/tm.texi: Likewise. * doc/tm.texi.in: Likewise. * doc/tree-ssa.texi: Likewise. * dojump.cc (do_jump): Likewise. * dojump.h: Likewise. * dumpfile.cc (test_impl_location): Likewise. (test_capture_of_dump_calls): Likewise. * dumpfile.h (enum dump_kind): Likewise. (class dump_location_t): Likewise. (dump_enabled_p): Likewise. (enable_rtl_dump_file): Likewise. (dump_combine_total_stats): Likewise. * dwarf2asm.cc (dw2_asm_output_delta_uleb128): Likewise. * dwarf2ctf.h (ctf_debug_finish): Likewise. * dwarf2out.cc (dwarf2out_begin_prologue): Likewise. (struct loc_descr_context): Likewise. (rtl_for_decl_location): Likewise. (gen_subprogram_die): Likewise. (gen_label_die): Likewise. (is_trivial_indirect_ref): Likewise. (dwarf2out_late_global_decl): Likewise. (dwarf_file_hasher::hash): Likewise. (dwarf2out_end_source_file): Likewise. (dwarf2out_define): Likewise. (dwarf2out_early_finish): Likewise. * dwarf2out.h (struct dw_fde_node): Likewise. (struct dw_discr_list_node): Likewise. (output_loc_sequence_raw): Likewise. * emit-rtl.cc (gen_raw_REG): Likewise. (maybe_set_max_label_num): Likewise. * emit-rtl.h (struct rtl_data): Likewise. * errors.cc (internal_error): Likewise. (trim_filename): Likewise. * et-forest.cc: Likewise. * except.cc (init_eh_for_function): Likewise. * explow.cc (promote_ssa_mode): Likewise. (get_dynamic_stack_size): Likewise. * explow.h: Likewise. * expmed.h: Likewise. * expr.cc (safe_from_p): Likewise. (expand_expr_real_2): Likewise. (expand_expr_real_1): Likewise. * file-prefix-map.cc (remap_filename): Likewise. * final.cc (app_enable): Likewise. (make_pass_compute_alignments): Likewise. (final_scan_insn_1): Likewise. (final_scan_insn): Likewise. * fixed-value.h (fixed_from_string): Likewise. * flag-types.h (NO_DEBUG): Likewise. (DWARF2_DEBUG): Likewise. (VMS_DEBUG): Likewise. (BTF_DEBUG): Likewise. (enum ctf_debug_info_levels): Likewise. * fold-const.cc (const_binop): Likewise. (fold_binary_loc): Likewise. (fold_checksum_tree): Likewise. * fp-test.cc: Likewise. * function.cc (expand_function_end): Likewise. * function.h (struct function): Likewise. * fwprop.cc (should_replace_address): Likewise. * gcc-main.cc: Likewise. * gcc-rich-location.h (class gcc_rich_location): Likewise. * gcc-symtab.h: Likewise. * gcc.cc (MIN_FATAL_STATUS): Likewise. (driver_handle_option): Likewise. (quote_spec_arg): Likewise. (driver::finalize): Likewise. * gcc.h (set_input): Likewise. * gcov-dump.cc: Likewise. * gcov.cc (solve_flow_graph): Likewise. * gcse-common.cc: Likewise. * gcse.cc (make_pass_rtl_hoist): Likewise. * genattr-common.cc: Likewise. * genattrtab.cc (min_fn): Likewise. (write_const_num_delay_slots): Likewise. * genautomata.cc: Likewise. * genconditions.cc (write_one_condition): Likewise. * genconstants.cc: Likewise. * genemit.cc (gen_exp): Likewise. * generic-match-head.cc: Likewise. * genextract.cc: Likewise. * gengenrtl.cc (always_void_p): Likewise. * gengtype-parse.cc (gtymarker_opt): Likewise. * gengtype-state.cc (state_writer::state_writer): Likewise. (write_state_trailer): Likewise. (equals_type_number): Likewise. (read_state): Likewise. * gengtype.cc (open_base_files): Likewise. (struct file_rule_st): Likewise. (header_dot_h_frul): Likewise. * gengtype.h: Likewise. * genmatch.cc (main): Likewise. * genmddeps.cc: Likewise. * genmodes.cc (emit_mode_inner): Likewise. (emit_mode_unit_size): Likewise. * genpeep.cc (gen_peephole): Likewise. * genpreds.cc (write_tm_preds_h): Likewise. * genrecog.cc (validate_pattern): Likewise. (write_header): Likewise. (main): Likewise. * gensupport.cc (change_subst_attribute): Likewise. (traverse_c_tests): Likewise. (add_predicate): Likewise. (init_predicate_table): Likewise. * gensupport.h (struct optab_pattern): Likewise. (get_num_insn_codes): Likewise. (maybe_eval_c_test): Likewise. (struct pred_data): Likewise. * ggc-internal.h: Likewise. * gimple-fold.cc (maybe_fold_reference): Likewise. (get_range_strlen_tree): Likewise. * gimple-fold.h (gimple_stmt_integer_valued_real_p): Likewise. * gimple-low.cc: Likewise. * gimple-match-head.cc (directly_supported_p): Likewise. * gimple-pretty-print.h: Likewise. * gimple-ssa-sprintf.cc (format_percent): Likewise. (adjust_range_for_overflow): Likewise. * gimple-streamer.h: Likewise. * gimple.h (struct GTY): Likewise. (is_gimple_resx): Likewise. * gimplify.cc (gimplify_expr): Likewise. (gimplify_init_constructor): Likewise. (omp_construct_selector_matches): Likewise. (gimplify_omp_target_update): Likewise. (gimplify_omp_ordered): Likewise. (gimplify_va_arg_expr): Likewise. * graphite-isl-ast-to-gimple.cc (should_copy_to_new_region): Likewise. * haifa-sched.cc (increase_insn_priority): Likewise. (try_ready): Likewise. (sched_create_recovery_edges): Likewise. * ifcvt.cc (find_if_case_1): Likewise. (find_if_case_2): Likewise. * inchash.h: Likewise. * incpath.cc (add_env_var_paths): Likewise. * input.cc (dump_location_info): Likewise. (assert_loceq): Likewise. (test_lexer_string_locations_concatenation_1): Likewise. (test_lexer_string_locations_concatenation_2): Likewise. (test_lexer_string_locations_concatenation_3): Likewise. * input.h (BUILTINS_LOCATION): Likewise. (class string_concat_db): Likewise. * internal-fn.cc (expand_MUL_OVERFLOW): Likewise. (expand_LOOP_VECTORIZED): Likewise. * ipa-cp.cc (make_pass_ipa_cp): Likewise. * ipa-fnsummary.cc (remap_freqcounting_preds_after_dup): Likewise. (ipa_fn_summary_t::duplicate): Likewise. (make_pass_ipa_fn_summary): Likewise. * ipa-fnsummary.h (enum ipa_hints_vals): Likewise. * ipa-free-lang-data.cc (fld_simplified_type): Likewise. (free_lang_data_in_decl): Likewise. * ipa-inline.cc (compute_inlined_call_time): Likewise. (inline_always_inline_functions): Likewise. * ipa-inline.h (free_growth_caches): Likewise. (inline_account_function_p): Likewise. * ipa-modref.cc (modref_access_analysis::analyze_stmt): Likewise. (modref_eaf_analysis::analyze_ssa_name): Likewise. * ipa-param-manipulation.cc (ipa_param_body_adjustments::mark_dead_statements): Likewise. (ipa_param_body_adjustments::remap_with_debug_expressions): Likewise. * ipa-prop.cc (ipa_set_node_agg_value_chain): Likewise. * ipa-prop.h (IPA_UNDESCRIBED_USE): Likewise. (unadjusted_ptr_and_unit_offset): Likewise. * ipa-reference.cc (make_pass_ipa_reference): Likewise. * ipa-reference.h (GCC_IPA_REFERENCE_H): Likewise. * ipa-split.cc (consider_split): Likewise. * ipa-sra.cc (isra_read_node_info): Likewise. * ipa-utils.h (struct ipa_dfs_info): Likewise. (recursive_call_p): Likewise. (ipa_make_function_pure): Likewise. * ira-build.cc (ira_create_allocno): Likewise. (ira_flattening): Likewise. * ira-color.cc (do_coloring): Likewise. (update_curr_costs): Likewise. * ira-conflicts.cc (process_regs_for_copy): Likewise. * ira-int.h (struct ira_emit_data): Likewise. (ira_prohibited_mode_move_regs): Likewise. (ira_get_dup_out_num): Likewise. (ira_destroy): Likewise. (ira_tune_allocno_costs): Likewise. (ira_implicitly_set_insn_hard_regs): Likewise. (ira_build_conflicts): Likewise. (ira_color): Likewise. * ira-lives.cc (process_bb_node_lives): Likewise. * ira.cc (class ira_spilled_reg_stack_slot): Likewise. (setup_uniform_class_p): Likewise. (def_dominates_uses): Likewise. * ira.h (ira_nullify_asm_goto): Likewise. * langhooks.cc (lhd_post_options): Likewise. * langhooks.h (class substring_loc): Likewise. (struct lang_hooks_for_tree_inlining): Likewise. (struct lang_hooks_for_types): Likewise. (struct lang_hooks): Likewise. * libfuncs.h (synchronize_libfunc): Likewise. * loop-doloop.cc (doloop_condition_get): Likewise. * loop-init.cc (fix_loop_structure): Likewise. * loop-invariant.cc: Likewise. * lower-subreg.h: Likewise. * lra-constraints.cc (curr_insn_transform): Likewise. * lra-int.h (struct lra_insn_reg): Likewise. (lra_undo_inheritance): Likewise. (lra_setup_reload_pseudo_preferenced_hard_reg): Likewise. (lra_split_hard_reg_for): Likewise. (lra_coalesce): Likewise. (lra_final_code_change): Likewise. * lra-spills.cc (lra_final_code_change): Likewise. * lra.cc (lra_process_new_insns): Likewise. * lto-compress.h (struct lto_compression_stream): Likewise. * lto-streamer-out.cc (DFS::DFS_write_tree_body): Likewise. (write_symbol): Likewise. * lto-streamer.h (enum LTO_tags): Likewise. (lto_value_range_error): Likewise. (lto_append_block): Likewise. (lto_streamer_hooks_init): Likewise. (stream_read_tree_ref): Likewise. (lto_prepare_function_for_streaming): Likewise. (select_what_to_stream): Likewise. (omp_lto_input_declare_variant_alt): Likewise. (cl_optimization_stream_in): Likewise. * lto-wrapper.cc (append_compiler_options): Likewise. * machmode.def: Likewise. * machmode.h (struct int_n_data_t): Likewise. * main.cc (main): Likewise. * match.pd: Likewise. * omp-builtins.def (BUILT_IN_GOMP_CRITICAL_NAME_END): Likewise. (BUILT_IN_GOMP_LOOP_ULL_ORDERED_RUNTIME_NEXT): Likewise. * omp-expand.cc (expand_omp_atomic_fetch_op): Likewise. (make_pass_expand_omp_ssa): Likewise. * omp-low.cc (struct omp_context): Likewise. (struct omp_taskcopy_context): Likewise. (lower_omp): Likewise. * omp-oacc-neuter-broadcast.cc (omp_sese_active_worker_call): Likewise. (mask_name): Likewise. (omp_sese_dump_pars): Likewise. (worker_single_simple): Likewise. * omp-offload.cc (omp_finish_file): Likewise. (execute_oacc_loop_designation): Likewise. * optabs-query.cc (lshift_cheap_p): Likewise. * optc-gen.awk: Likewise. * optc-save-gen.awk: Likewise. * optinfo-emit-json.cc (optrecord_json_writer::optrecord_json_writer): Likewise. * opts-common.cc: Likewise. * output.h (app_enable): Likewise. (output_operand_lossage): Likewise. (insn_current_reference_address): Likewise. (get_insn_template): Likewise. (output_quoted_string): Likewise. * pass_manager.h (struct register_pass_info): Likewise. * plugin.cc: Likewise. * plugin.def (PLUGIN_ANALYZER_INIT): Likewise. * plugin.h (invoke_plugin_callbacks): Likewise. * pointer-query.cc (handle_mem_ref): Likewise. * postreload-gcse.cc (alloc_mem): Likewise. * predict.h (enum prediction): Likewise. (add_reg_br_prob_note): Likewise. * prefix.h: Likewise. * profile.h (get_working_sets): Likewise. * read-md.cc: Likewise. * read-md.h (struct mapping): Likewise. (class md_reader): Likewise. (class noop_reader): Likewise. * read-rtl-function.cc (function_reader::create_function): Likewise. (function_reader::extra_parsing_for_operand_code_0): Likewise. * read-rtl.cc (initialize_iterators): Likewise. * real.cc: Likewise. * real.h (struct real_value): Likewise. (format_helper::format_helper): Likewise. (real_hash): Likewise. (real_can_shorten_arithmetic): Likewise. * recog.cc (struct target_recog): Likewise. (offsettable_nonstrict_memref_p): Likewise. (constrain_operands): Likewise. * recog.h (MAX_RECOG_ALTERNATIVES): Likewise. (which_op_alt): Likewise. (struct insn_gen_fn): Likewise. * reg-notes.def (REG_NOTE): Likewise. * reg-stack.cc: Likewise. * regs.h (reg_is_parm_p): Likewise. * regset.h: Likewise. * reload.cc (push_reload): Likewise. (find_reloads): Likewise. (find_reloads_address_1): Likewise. (find_replacement): Likewise. (refers_to_regno_for_reload_p): Likewise. (refers_to_mem_for_reload_p): Likewise. * reload.h (push_reload): Likewise. (deallocate_reload_reg): Likewise. * reload1.cc (emit_input_reload_insns): Likewise. * reorg.cc (relax_delay_slots): Likewise. * rtl.def (UNKNOWN): Likewise. (SEQUENCE): Likewise. (BARRIER): Likewise. (ASM_OPERANDS): Likewise. (EQ_ATTR_ALT): Likewise. * rtl.h (struct GTY): Likewise. (LABEL_NAME): Likewise. (LABEL_ALT_ENTRY_P): Likewise. (SUBREG_BYTE): Likewise. (get_stack_check_protect): Likewise. (dump_rtx_statistics): Likewise. (unwrap_const_vec_duplicate): Likewise. (subreg_promoted_mode): Likewise. (gen_lowpart_common): Likewise. (operand_subword): Likewise. (immed_wide_int_const): Likewise. (decide_function_section): Likewise. (active_insn_p): Likewise. (delete_related_insns): Likewise. (try_split): Likewise. (val_signbit_known_clear_p): Likewise. (simplifiable_subregs): Likewise. (set_insn_deleted): Likewise. (subreg_get_info): Likewise. (remove_free_EXPR_LIST_node): Likewise. (finish_subregs_of_mode): Likewise. (get_mem_attrs): Likewise. (lookup_constant_def): Likewise. (rtx_to_tree_code): Likewise. (hash_rtx): Likewise. (condjump_in_parallel_p): Likewise. (validate_subreg): Likewise. (make_compound_operation): Likewise. (schedule_ebbs): Likewise. (print_inline_rtx): Likewise. (fixup_args_size_notes): Likewise. (expand_dec): Likewise. (prepare_copy_insn): Likewise. (mark_elimination): Likewise. (valid_mode_changes_for_regno): Likewise. (make_debug_expr_from_rtl): Likewise. (delete_vta_debug_insns): Likewise. (simplify_using_condition): Likewise. (set_insn_locations): Likewise. (fatal_insn_not_found): Likewise. (word_register_operation_p): Likewise. * rtlanal.cc (get_call_fndecl): Likewise. (side_effects_p): Likewise. (subreg_nregs): Likewise. (rtx_cost): Likewise. (canonicalize_condition): Likewise. * rtlanal.h (rtx_properties::try_to_add_note): Likewise. * run-rtl-passes.cc (run_rtl_passes): Likewise. * sanitizer.def (BUILT_IN_ASAN_VERSION_MISMATCH_CHECK): Likewise. * sched-deps.cc (add_dependence_1): Likewise. * sched-ebb.cc (begin_move_insn): Likewise. (add_deps_for_risky_insns): Likewise. (advance_target_bb): Likewise. * sched-int.h (reemit_notes): Likewise. (struct _haifa_insn_data): Likewise. (HID): Likewise. (DEP_CANCELLED): Likewise. (debug_ds): Likewise. (number_in_ready): Likewise. (schedule_ebbs_finish): Likewise. (find_modifiable_mems): Likewise. * sched-rgn.cc (debug_rgn_dependencies): Likewise. * sel-sched-dump.cc (dump_lv_set): Likewise. * sel-sched-dump.h: Likewise. * sel-sched-ir.cc (sel_insn_rtx_cost): Likewise. (setup_id_reg_sets): Likewise. (has_dependence_p): Likewise. (sel_num_cfg_preds_gt_1): Likewise. (bb_ends_ebb_p): Likewise. * sel-sched-ir.h (struct _list_node): Likewise. (struct idata_def): Likewise. (bb_next_bb): Likewise. * sel-sched.cc (vinsn_writes_one_of_regs_p): Likewise. (choose_best_pseudo_reg): Likewise. (verify_target_availability): Likewise. (can_speculate_dep_p): Likewise. (sel_rank_for_schedule): Likewise. * selftest-run-tests.cc (selftest::run_tests): Likewise. * selftest.h (class auto_fix_quotes): Likewise. * shrink-wrap.cc (handle_simple_exit): Likewise. * shrink-wrap.h: Likewise. * simplify-rtx.cc (simplify_context::simplify_associative_operation): Likewise. (simplify_context::simplify_gen_vec_select): Likewise. * spellcheck-tree.h: Likewise. * spellcheck.h: Likewise. * statistics.h (struct function): Likewise. * stmt.cc (conditional_probability): Likewise. * stmt.h: Likewise. * stor-layout.h: Likewise. * streamer-hooks.h: Likewise. * stringpool.h: Likewise. * symtab.cc (symbol_table::change_decl_assembler_name): Likewise. * target.def (HOOK_VECTOR_END): Likewise. (type.): Likewise. * target.h (union cumulative_args_t): Likewise. (by_pieces_ninsns): Likewise. (class predefined_function_abi): Likewise. * targhooks.cc (default_translate_mode_attribute): Likewise. * timevar.def: Likewise. * timevar.h (class timer): Likewise. * toplev.h (enable_rtl_dump_file): Likewise. * trans-mem.cc (collect_bb2reg): Likewise. * tree-call-cdce.cc (gen_conditions_for_pow): Likewise. * tree-cfg.cc (remove_bb): Likewise. (verify_gimple_debug): Likewise. (remove_edge_and_dominated_blocks): Likewise. (push_fndecl): Likewise. * tree-cfgcleanup.h (GCC_TREE_CFGCLEANUP_H): Likewise. * tree-complex.cc (expand_complex_multiplication): Likewise. (expand_complex_div_straight): Likewise. * tree-core.h (enum tree_index): Likewise. (enum operand_equal_flag): Likewise. * tree-eh.cc (honor_protect_cleanup_actions): Likewise. * tree-if-conv.cc (if_convertible_gimple_assign_stmt_p): Likewise. * tree-inline.cc (initialize_inlined_parameters): Likewise. * tree-inline.h (force_value_to_type): Likewise. * tree-nested.cc (get_chain_decl): Likewise. (walk_all_functions): Likewise. * tree-object-size.h: Likewise. * tree-outof-ssa.cc: Likewise. * tree-parloops.cc (create_parallel_loop): Likewise. * tree-pretty-print.cc (print_generic_expr_to_str): Likewise. (dump_generic_node): Likewise. * tree-profile.cc (tree_profiling): Likewise. * tree-sra.cc (maybe_add_sra_candidate): Likewise. * tree-ssa-address.cc: Likewise. * tree-ssa-alias.cc: Likewise. * tree-ssa-alias.h (ao_ref::max_size_known_p): Likewise. (dump_alias_stats): Likewise. * tree-ssa-ccp.cc: Likewise. * tree-ssa-coalesce.h: Likewise. * tree-ssa-live.cc (remove_unused_scope_block_p): Likewise. * tree-ssa-loop-manip.cc (copy_phi_node_args): Likewise. * tree-ssa-loop-unswitch.cc: Likewise. * tree-ssa-math-opts.cc: Likewise. * tree-ssa-operands.cc (class operands_scanner): Likewise. * tree-ssa-pre.cc: Likewise. * tree-ssa-reassoc.cc (optimize_ops_list): Likewise. (debug_range_entry): Likewise. * tree-ssa-sccvn.cc (eliminate_dom_walker::eliminate_stmt): Likewise. * tree-ssa-sccvn.h (TREE_SSA_SCCVN_H): Likewise. * tree-ssa-scopedtables.cc (add_expr_commutative): Likewise. (equal_mem_array_ref_p): Likewise. * tree-ssa-strlen.cc (is_strlen_related_p): Likewise. * tree-ssa-strlen.h (get_range_strlen_dynamic): Likewise. * tree-ssa-tail-merge.cc (stmt_local_def): Likewise. * tree-ssa-ter.h: Likewise. * tree-ssa-threadupdate.h (enum bb_dom_status): Likewise. * tree-streamer-in.cc (lto_input_ts_block_tree_pointers): Likewise. * tree-streamer-out.cc (pack_ts_block_value_fields): Likewise. (write_ts_block_tree_pointers): Likewise. * tree-streamer.h (struct streamer_tree_cache_d): Likewise. (streamer_read_tree_bitfields): Likewise. (streamer_write_integer_cst): Likewise. * tree-vect-patterns.cc (apply_binop_and_append_stmt): Likewise. (vect_synth_mult_by_constant): Likewise. * tree-vect-stmts.cc (vectorizable_operation): Likewise. * tree-vectorizer.cc: Likewise. * tree-vectorizer.h (class auto_purge_vect_location): Likewise. (vect_update_inits_of_drs): Likewise. (vect_get_mask_type_for_stmt): Likewise. (vect_rgroup_iv_might_wrap_p): Likewise. (cse_and_gimplify_to_preheader): Likewise. (vect_free_slp_tree): Likewise. (vect_pattern_recog): Likewise. (vect_stmt_dominates_stmt_p): Likewise. * tree.cc (initialize_tree_contains_struct): Likewise. (need_assembler_name_p): Likewise. (type_with_interoperable_signedness): Likewise. * tree.def (SWITCH_EXPR): Likewise. * tree.h (TYPE_SYMTAB_ADDRESS): Likewise. (poly_int_tree_p): Likewise. (inlined_function_outer_scope_p): Likewise. (tree_code_for_canonical_type_merging): Likewise. * value-prof.cc: Likewise. * value-prof.h (get_nth_most_common_value): Likewise. (find_func_by_profile_id): Likewise. * value-range.cc (vrp_operand_equal_p): Likewise. * value-range.h: Likewise. * var-tracking.cc: Likewise. * varasm.cc (default_function_section): Likewise. (function_section_1): Likewise. (assemble_variable): Likewise. (handle_vtv_comdat_section): Likewise. * vec.h (struct vec_prefix): Likewise. * vmsdbgout.cc (full_name): Likewise. * vtable-verify.cc: Likewise. * vtable-verify.h (struct vtv_graph_node): Likewise. * xcoffout.cc: Likewise. * xcoffout.h (DEBUG_SYMS_TEXT): Likewise. gcc/ada/ChangeLog: * Make-generated.in: Rename .c names to .cc. * adaint.c: Likewise. * ctrl_c.c (dummy_handler): Likewise. * gcc-interface/Makefile.in: Likewise. * gcc-interface/config-lang.in: Likewise. * gcc-interface/decl.cc (concat_name): Likewise. (init_gnat_decl): Likewise. * gcc-interface/gigi.h (concat_name): Likewise. (init_gnat_utils): Likewise. (build_call_raise_range): Likewise. (gnat_mark_addressable): Likewise. (gnat_protect_expr): Likewise. (gnat_rewrite_reference): Likewise. * gcc-interface/lang-specs.h (ADA_DUMPS_OPTIONS): Likewise. * gcc-interface/utils.cc (GTY): Likewise. (add_deferred_type_context): Likewise. (init_gnat_utils): Likewise. * gcc-interface/utils2.cc (gnat_stable_expr_p): Likewise. (gnat_protect_expr): Likewise. (gnat_stabilize_reference_1): Likewise. (gnat_rewrite_reference): Likewise. * gsocket.h: Likewise. * init.cc (__gnat_error_handler): Likewise. * libgnarl/s-intman.ads: Likewise. * libgnarl/s-osinte__android.ads: Likewise. * libgnarl/s-osinte__darwin.ads: Likewise. * libgnarl/s-osinte__hpux.ads: Likewise. * libgnarl/s-osinte__linux.ads: Likewise. * libgnarl/s-osinte__qnx.ads: Likewise. * libgnarl/s-taskin.ads: Likewise. * rtfinal.cc: Likewise. * s-oscons-tmplt.c (CND): Likewise. * set_targ.ads: Likewise. gcc/analyzer/ChangeLog: * analyzer.cc (is_special_named_call_p): Rename .c names to .cc. (is_named_call_p): Likewise. * region-model-asm.cc (deterministic_p): Likewise. * region.cc (field_region::get_relative_concrete_offset): Likewise. * sm-malloc.cc (method_p): Likewise. * supergraph.cc (superedge::dump_dot): Likewise. gcc/c-family/ChangeLog: * c-ada-spec.cc: Rename .c names to .cc. * c-ada-spec.h: Likewise. * c-common.cc (c_build_vec_convert): Likewise. (warning_candidate_p): Likewise. * c-common.h (enum rid): Likewise. (build_real_imag_expr): Likewise. (finish_label_address_expr): Likewise. (c_get_substring_location): Likewise. (c_build_bind_expr): Likewise. (conflict_marker_get_final_tok_kind): Likewise. (c_parse_error): Likewise. (check_missing_format_attribute): Likewise. (invalid_array_size_error): Likewise. (warn_for_multistatement_macros): Likewise. (build_attr_access_from_parms): Likewise. * c-cppbuiltin.cc (c_cpp_builtins): Likewise. * c-format.cc: Likewise. * c-gimplify.cc (c_gimplify_expr): Likewise. * c-indentation.h: Likewise. * c-objc.h (objc_prop_attr_kind_for_rid): Likewise. * c-omp.cc (c_omp_predetermined_mapping): Likewise. * c-opts.cc (c_common_post_options): Likewise. (set_std_cxx23): Likewise. * c-pragma.cc (handle_pragma_redefine_extname): Likewise. * c-pretty-print.h: Likewise. gcc/c/ChangeLog: * Make-lang.in: Rename .c names to .cc. * c-convert.cc: Likewise. * c-decl.cc (struct lang_identifier): Likewise. (pop_scope): Likewise. (finish_decl): Likewise. * c-objc-common.h (GCC_C_OBJC_COMMON): Likewise. * c-parser.cc (c_parser_skip_to_end_of_block_or_statement): Likewise. * c-parser.h (GCC_C_PARSER_H): Likewise. * c-tree.h (c_keyword_starts_typename): Likewise. (finish_declspecs): Likewise. (c_get_alias_set): Likewise. (enum c_oracle_request): Likewise. (tag_exists_p): Likewise. (set_c_expr_source_range): Likewise. * c-typeck.cc (c_common_type): Likewise. (c_finish_omp_clauses): Likewise. * config-lang.in: Likewise. gcc/cp/ChangeLog: * Make-lang.in: Rename .c names to .cc. * config-lang.in: Likewise. * constexpr.cc (cxx_eval_constant_expression): Likewise. * coroutines.cc (morph_fn_to_coro): Likewise. * cp-gimplify.cc (cp_gimplify_expr): Likewise. * cp-lang.cc (struct lang_hooks): Likewise. (get_template_argument_pack_elems_folded): Likewise. * cp-objcp-common.cc (cp_tree_size): Likewise. (cp_unit_size_without_reusable_padding): Likewise. (pop_file_scope): Likewise. (cp_pushdecl): Likewise. * cp-objcp-common.h (GCC_CP_OBJCP_COMMON): Likewise. (cxx_simulate_record_decl): Likewise. * cp-tree.h (struct named_label_entry): Likewise. (current_function_return_value): Likewise. (more_aggr_init_expr_args_p): Likewise. (get_function_version_dispatcher): Likewise. (common_enclosing_class): Likewise. (strip_fnptr_conv): Likewise. (current_decl_namespace): Likewise. (do_aggregate_paren_init): Likewise. (cp_check_const_attributes): Likewise. (qualified_name_lookup_error): Likewise. (generic_targs_for): Likewise. (mark_exp_read): Likewise. (is_global_friend): Likewise. (maybe_reject_flexarray_init): Likewise. (module_token_lang): Likewise. (handle_module_option): Likewise. (literal_integer_zerop): Likewise. (build_extra_args): Likewise. (build_if_nonnull): Likewise. (maybe_check_overriding_exception_spec): Likewise. (finish_omp_target_clauses): Likewise. (maybe_warn_zero_as_null_pointer_constant): Likewise. (cxx_print_error_function): Likewise. (decl_in_std_namespace_p): Likewise. (merge_exception_specifiers): Likewise. (mangle_module_global_init): Likewise. (cxx_block_may_fallthru): Likewise. (fold_builtin_source_location): Likewise. (enum cp_oracle_request): Likewise. (subsumes): Likewise. (cp_finish_injected_record_type): Likewise. (vtv_build_vtable_verify_fndecl): Likewise. (cp_tree_c_finish_parsing): Likewise. * cvt.cc (diagnose_ref_binding): Likewise. (convert_to_void): Likewise. (convert_force): Likewise. (type_promotes_to): Likewise. * decl.cc (make_unbound_class_template_raw): Likewise. (cxx_init_decl_processing): Likewise. (check_class_member_definition_namespace): Likewise. (cxx_maybe_build_cleanup): Likewise. * decl2.cc (maybe_emit_vtables): Likewise. * error.cc (dump_function_name): Likewise. * init.cc (is_class_type): Likewise. (build_new_1): Likewise. * lang-specs.h: Likewise. * method.cc (make_alias_for_thunk): Likewise. * module.cc (specialization_add): Likewise. (module_state::read_cluster): Likewise. * name-lookup.cc (check_extern_c_conflict): Likewise. * name-lookup.h (struct cxx_binding): Likewise. * parser.cc (cp_parser_identifier): Likewise. * parser.h (struct cp_parser): Likewise. * pt.cc (has_value_dependent_address): Likewise. (push_tinst_level_loc): Likewise. * semantics.cc (finish_omp_clauses): Likewise. (finish_omp_atomic): Likewise. * tree.cc (cp_save_expr): Likewise. (cp_free_lang_data): Likewise. * typeck.cc (cp_common_type): Likewise. (strip_array_domain): Likewise. (rationalize_conditional_expr): Likewise. (check_return_expr): Likewise. * vtable-class-hierarchy.cc: Likewise. gcc/d/ChangeLog: * d-gimplify.cc: Rename .c names to .cc. * d-incpath.cc: Likewise. * lang-specs.h: Likewise. gcc/fortran/ChangeLog: * check.cc (gfc_check_all_any): Rename .c names to .cc. * class.cc (find_intrinsic_vtab): Likewise. * config-lang.in: Likewise. * cpp.cc (cpp_define_builtins): Likewise. * data.cc (get_array_index): Likewise. * decl.cc (match_clist_expr): Likewise. (get_proc_name): Likewise. (gfc_verify_c_interop_param): Likewise. (gfc_get_pdt_instance): Likewise. (gfc_match_formal_arglist): Likewise. (gfc_get_type_attr_spec): Likewise. * dependency.cc: Likewise. * error.cc (gfc_format_decoder): Likewise. * expr.cc (check_restricted): Likewise. (gfc_build_default_init_expr): Likewise. * f95-lang.cc: Likewise. * gfc-internals.texi: Likewise. * gfortran.h (enum match): Likewise. (enum procedure_type): Likewise. (enum oacc_routine_lop): Likewise. (gfc_get_pdt_instance): Likewise. (gfc_end_source_files): Likewise. (gfc_mpz_set_hwi): Likewise. (gfc_get_option_string): Likewise. (gfc_find_sym_in_expr): Likewise. (gfc_errors_to_warnings): Likewise. (gfc_real_4_kind): Likewise. (gfc_free_finalizer): Likewise. (gfc_sym_get_dummy_args): Likewise. (gfc_check_intrinsic_standard): Likewise. (gfc_free_case_list): Likewise. (gfc_resolve_oacc_routines): Likewise. (gfc_check_vardef_context): Likewise. (gfc_free_association_list): Likewise. (gfc_implicit_pure_function): Likewise. (gfc_ref_dimen_size): Likewise. (gfc_compare_actual_formal): Likewise. (gfc_resolve_wait): Likewise. (gfc_dt_upper_string): Likewise. (gfc_generate_module_code): Likewise. (gfc_delete_bbt): Likewise. (debug): Likewise. (gfc_build_block_ns): Likewise. (gfc_dep_difference): Likewise. (gfc_invalid_null_arg): Likewise. (gfc_is_finalizable): Likewise. (gfc_fix_implicit_pure): Likewise. (gfc_is_size_zero_array): Likewise. (gfc_is_reallocatable_lhs): Likewise. * gfortranspec.cc: Likewise. * interface.cc (compare_actual_expr): Likewise. * intrinsic.cc (add_functions): Likewise. * iresolve.cc (gfc_resolve_matmul): Likewise. (gfc_resolve_alarm_sub): Likewise. * iso-c-binding.def: Likewise. * lang-specs.h: Likewise. * libgfortran.h (GFC_STDERR_UNIT_NUMBER): Likewise. * match.cc (gfc_match_label): Likewise. (gfc_match_symbol): Likewise. (match_derived_type_spec): Likewise. (copy_ts_from_selector_to_associate): Likewise. * match.h (gfc_match_call): Likewise. (gfc_get_common): Likewise. (gfc_match_omp_end_single): Likewise. (gfc_match_volatile): Likewise. (gfc_match_bind_c): Likewise. (gfc_match_literal_constant): Likewise. (gfc_match_init_expr): Likewise. (gfc_match_array_constructor): Likewise. (gfc_match_end_interface): Likewise. (gfc_match_print): Likewise. (gfc_match_expr): Likewise. * matchexp.cc (next_operator): Likewise. * mathbuiltins.def: Likewise. * module.cc (free_true_name): Likewise. * openmp.cc (gfc_resolve_omp_parallel_blocks): Likewise. (gfc_omp_save_and_clear_state): Likewise. * parse.cc (parse_union): Likewise. (set_syms_host_assoc): Likewise. * resolve.cc (resolve_actual_arglist): Likewise. (resolve_elemental_actual): Likewise. (check_host_association): Likewise. (resolve_typebound_function): Likewise. (resolve_typebound_subroutine): Likewise. (gfc_resolve_expr): Likewise. (resolve_assoc_var): Likewise. (resolve_typebound_procedures): Likewise. (resolve_equivalence_derived): Likewise. * simplify.cc (simplify_bound): Likewise. * symbol.cc (gfc_set_default_type): Likewise. (gfc_add_ext_attribute): Likewise. * target-memory.cc (gfc_target_interpret_expr): Likewise. * target-memory.h (gfc_target_interpret_expr): Likewise. * trans-array.cc (gfc_get_cfi_dim_sm): Likewise. (gfc_conv_shift_descriptor_lbound): Likewise. (gfc_could_be_alias): Likewise. (gfc_get_dataptr_offset): Likewise. * trans-const.cc: Likewise. * trans-decl.cc (trans_function_start): Likewise. (gfc_trans_deferred_vars): Likewise. (generate_local_decl): Likewise. (gfc_generate_function_code): Likewise. * trans-expr.cc (gfc_vptr_size_get): Likewise. (gfc_trans_class_array_init_assign): Likewise. (POWI_TABLE_SIZE): Likewise. (gfc_conv_procedure_call): Likewise. (gfc_trans_arrayfunc_assign): Likewise. * trans-intrinsic.cc (gfc_conv_intrinsic_len): Likewise. (gfc_conv_intrinsic_loc): Likewise. (conv_intrinsic_event_query): Likewise. * trans-io.cc (gfc_build_st_parameter): Likewise. * trans-openmp.cc (gfc_omp_check_optional_argument): Likewise. (gfc_omp_unshare_expr_r): Likewise. (gfc_trans_omp_array_section): Likewise. (gfc_trans_omp_clauses): Likewise. * trans-stmt.cc (trans_associate_var): Likewise. (gfc_trans_deallocate): Likewise. * trans-stmt.h (gfc_trans_class_init_assign): Likewise. (gfc_trans_deallocate): Likewise. (gfc_trans_oacc_declare): Likewise. * trans-types.cc: Likewise. * trans-types.h (enum gfc_packed): Likewise. * trans.cc (N_): Likewise. (trans_code): Likewise. * trans.h (gfc_build_compare_string): Likewise. (gfc_conv_expr_type): Likewise. (gfc_trans_deferred_vars): Likewise. (getdecls): Likewise. (gfc_get_array_descr_info): Likewise. (gfc_omp_firstprivatize_type_sizes): Likewise. (GTY): Likewise. gcc/go/ChangeLog: * config-lang.in: Rename .c names to .cc. * go-backend.cc: Likewise. * go-lang.cc: Likewise. * gospec.cc: Likewise. * lang-specs.h: Likewise. gcc/jit/ChangeLog: * config-lang.in: Rename .c names to .cc. * docs/_build/texinfo/libgccjit.texi: Likewise. * docs/internals/index.rst: Likewise. * jit-builtins.cc (builtins_manager::make_builtin_function): Likewise. * jit-playback.cc (fold_const_var): Likewise. (playback::context::~context): Likewise. (new_field): Likewise. (new_bitfield): Likewise. (new_compound_type): Likewise. (playback::compound_type::set_fields): Likewise. (global_set_init_rvalue): Likewise. (load_blob_in_ctor): Likewise. (new_global_initialized): Likewise. (double>): Likewise. (new_string_literal): Likewise. (as_truth_value): Likewise. (build_call): Likewise. (playback::context::build_cast): Likewise. (new_array_access): Likewise. (new_field_access): Likewise. (dereference): Likewise. (postprocess): Likewise. (add_jump): Likewise. (add_switch): Likewise. (build_goto_operands): Likewise. (playback::context::read_dump_file): Likewise. (init_types): Likewise. * jit-recording.cc (recording::context::get_int_type): Likewise. * jit-recording.h: Likewise. * libgccjit.cc (compatible_types): Likewise. (gcc_jit_context_acquire): Likewise. (gcc_jit_context_release): Likewise. (gcc_jit_context_new_child_context): Likewise. (gcc_jit_type_as_object): Likewise. (gcc_jit_context_get_type): Likewise. (gcc_jit_context_get_int_type): Likewise. (gcc_jit_type_get_pointer): Likewise. (gcc_jit_type_get_const): Likewise. (gcc_jit_type_get_volatile): Likewise. (gcc_jit_type_dyncast_array): Likewise. (gcc_jit_type_is_bool): Likewise. (gcc_jit_type_is_pointer): Likewise. (gcc_jit_type_is_integral): Likewise. (gcc_jit_type_dyncast_vector): Likewise. (gcc_jit_type_is_struct): Likewise. (gcc_jit_vector_type_get_num_units): Likewise. (gcc_jit_vector_type_get_element_type): Likewise. (gcc_jit_type_unqualified): Likewise. (gcc_jit_type_dyncast_function_ptr_type): Likewise. (gcc_jit_function_type_get_return_type): Likewise. (gcc_jit_function_type_get_param_count): Likewise. (gcc_jit_function_type_get_param_type): Likewise. (gcc_jit_context_new_array_type): Likewise. (gcc_jit_context_new_field): Likewise. (gcc_jit_field_as_object): Likewise. (gcc_jit_context_new_struct_type): Likewise. (gcc_jit_struct_as_type): Likewise. (gcc_jit_struct_set_fields): Likewise. (gcc_jit_struct_get_field_count): Likewise. (gcc_jit_context_new_union_type): Likewise. (gcc_jit_context_new_function_ptr_type): Likewise. (gcc_jit_param_as_rvalue): Likewise. (gcc_jit_context_new_function): Likewise. (gcc_jit_function_get_return_type): Likewise. (gcc_jit_function_dump_to_dot): Likewise. (gcc_jit_block_get_function): Likewise. (gcc_jit_global_set_initializer_rvalue): Likewise. (gcc_jit_rvalue_get_type): Likewise. (gcc_jit_context_new_rvalue_from_int): Likewise. (gcc_jit_context_one): Likewise. (gcc_jit_context_new_rvalue_from_double): Likewise. (gcc_jit_context_null): Likewise. (gcc_jit_context_new_string_literal): Likewise. (valid_binary_op_p): Likewise. (gcc_jit_context_new_binary_op): Likewise. (gcc_jit_context_new_comparison): Likewise. (gcc_jit_context_new_call): Likewise. (is_valid_cast): Likewise. (gcc_jit_context_new_cast): Likewise. (gcc_jit_object_get_context): Likewise. (gcc_jit_object_get_debug_string): Likewise. (gcc_jit_lvalue_access_field): Likewise. (gcc_jit_rvalue_access_field): Likewise. (gcc_jit_rvalue_dereference_field): Likewise. (gcc_jit_rvalue_dereference): Likewise. (gcc_jit_lvalue_get_address): Likewise. (gcc_jit_lvalue_set_tls_model): Likewise. (gcc_jit_lvalue_set_link_section): Likewise. (gcc_jit_function_new_local): Likewise. (gcc_jit_block_add_eval): Likewise. (gcc_jit_block_add_assignment): Likewise. (is_bool): Likewise. (gcc_jit_block_end_with_conditional): Likewise. (gcc_jit_block_add_comment): Likewise. (gcc_jit_block_end_with_jump): Likewise. (gcc_jit_block_end_with_return): Likewise. (gcc_jit_block_end_with_void_return): Likewise. (case_range_validator::case_range_validator): Likewise. (case_range_validator::validate): Likewise. (case_range_validator::get_wide_int): Likewise. (gcc_jit_block_end_with_switch): Likewise. (gcc_jit_context_set_str_option): Likewise. (gcc_jit_context_set_int_option): Likewise. (gcc_jit_context_set_bool_option): Likewise. (gcc_jit_context_set_bool_allow_unreachable_blocks): Likewise. (gcc_jit_context_set_bool_use_external_driver): Likewise. (gcc_jit_context_add_command_line_option): Likewise. (gcc_jit_context_add_driver_option): Likewise. (gcc_jit_context_enable_dump): Likewise. (gcc_jit_context_compile): Likewise. (gcc_jit_context_compile_to_file): Likewise. (gcc_jit_context_set_logfile): Likewise. (gcc_jit_context_dump_reproducer_to_file): Likewise. (gcc_jit_context_get_first_error): Likewise. (gcc_jit_context_get_last_error): Likewise. (gcc_jit_result_get_code): Likewise. (gcc_jit_result_get_global): Likewise. (gcc_jit_rvalue_set_bool_require_tail_call): Likewise. (gcc_jit_type_get_aligned): Likewise. (gcc_jit_type_get_vector): Likewise. (gcc_jit_function_get_address): Likewise. (gcc_jit_version_patchlevel): Likewise. (gcc_jit_block_add_extended_asm): Likewise. (gcc_jit_extended_asm_as_object): Likewise. (gcc_jit_extended_asm_set_volatile_flag): Likewise. (gcc_jit_extended_asm_set_inline_flag): Likewise. (gcc_jit_extended_asm_add_output_operand): Likewise. (gcc_jit_extended_asm_add_input_operand): Likewise. (gcc_jit_extended_asm_add_clobber): Likewise. * notes.txt: Likewise. gcc/lto/ChangeLog: * config-lang.in: Rename .c names to .cc. * lang-specs.h: Likewise. * lto-common.cc (gimple_register_canonical_type_1): Likewise. * lto-common.h: Likewise. * lto-dump.cc (lto_main): Likewise. * lto-lang.cc (handle_fnspec_attribute): Likewise. (lto_getdecls): Likewise. (lto_init): Likewise. * lto.cc (lto_main): Likewise. * lto.h: Likewise. gcc/objc/ChangeLog: * Make-lang.in: Rename .c names to .cc. * config-lang.in: Likewise. * lang-specs.h: Likewise. * objc-act.cc (objc_build_component_ref): Likewise. (objc_copy_binfo): Likewise. (lookup_method_in_hash_lists): Likewise. (objc_finish_foreach_loop): Likewise. * objc-act.h (objc_common_init_ts): Likewise. * objc-gnu-runtime-abi-01.cc: Likewise. * objc-lang.cc (struct lang_hooks): Likewise. * objc-map.cc: Likewise. * objc-next-runtime-abi-01.cc (generate_objc_symtab_decl): Likewise. * objc-runtime-shared-support.cc: Likewise. * objc-runtime-shared-support.h (build_protocol_initializer): Likewise. gcc/objcp/ChangeLog: * Make-lang.in: Rename .c names to .cc. * config-lang.in: Likewise. * lang-specs.h: Likewise. * objcp-decl.cc (objcp_end_compound_stmt): Likewise. * objcp-lang.cc (struct lang_hooks): Likewise. gcc/po/ChangeLog: * EXCLUDES: Rename .c names to .cc. libcpp/ChangeLog: * Makefile.in: Rename .c names to .cc. * charset.cc (convert_escape): Likewise. * directives.cc (directive_diagnostics): Likewise. (_cpp_handle_directive): Likewise. (lex_macro_node): Likewise. * include/cpplib.h (struct _cpp_file): Likewise. (PURE_ZERO): Likewise. (cpp_defined): Likewise. (cpp_error_at): Likewise. (cpp_forall_identifiers): Likewise. (cpp_compare_macros): Likewise. (cpp_get_converted_source): Likewise. (cpp_read_state): Likewise. (cpp_directive_only_process): Likewise. (struct cpp_decoded_char): Likewise. * include/line-map.h (enum lc_reason): Likewise. (enum location_aspect): Likewise. * include/mkdeps.h: Likewise. * init.cc (cpp_destroy): Likewise. (cpp_finish): Likewise. * internal.h (struct cpp_reader): Likewise. (_cpp_defined_macro_p): Likewise. (_cpp_backup_tokens_direct): Likewise. (_cpp_destroy_hashtable): Likewise. (_cpp_has_header): Likewise. (_cpp_expand_op_stack): Likewise. (_cpp_commit_buff): Likewise. (_cpp_restore_special_builtin): Likewise. (_cpp_bracket_include): Likewise. (_cpp_replacement_text_len): Likewise. (ufputs): Likewise. * line-map.cc (linemap_macro_loc_to_exp_point): Likewise. (linemap_check_files_exited): Likewise. (line_map_new_raw): Likewise. * traditional.cc (enum ls): Likewise.	2022-01-17 22:12:07 +01:00
Clément Chigot	14e0d83297	aix: handle 64bit inodes for include directories ... On AIX, stat will store inodes in 32bit even when using LARGE_FILES. If the inode is larger, it will return -1 in st_ino. Thus, in incpath.c when comparing include directories, if several of them have 64bit inodes, they will be considered as duplicated. gcc/ChangeLog: 2022-01-12 Clément Chigot <clement.chigot@atos.net> * configure.ac: Check sizeof ino_t and dev_t. (HOST_STAT_FOR_64BIT_INODES): New AC_DEFINE to provide stat syscall being able to handle 64bit inodes. * config.in: Regenerate. * configure: Regenerate. * incpath.c (HOST_STAT_FOR_64BIT_INODES): New define. (remove_duplicates): Use it. libcpp/ChangeLog: 2022-01-12 Clément Chigot <clement.chigot@atos.net> * configure.ac: Check sizeof ino_t and dev_t. * config.in: Regenerate. * configure: Regenerate. * include/cpplib.h (INO_T_CPP): Change for AIX. (DEV_T_CPP): New macro. (struct cpp_dir): Use it.	2022-01-12 16:59:47 +01:00
Jakub Jelinek	7adcbafe45	Update copyright years.	2022-01-03 10:42:10 +01:00
Jakub Jelinek	fe7c3ecff1	pch: Add support for PCH for relocatable executables [PR71934] ... So, if we want to make PCH work for PIEs, I'd say we can: 1) add a new GTY option, say callback, which would act like skip for non-PCH and for PCH would make us skip it but remember for address bias translation 2) drop the skip for tree_translation_unit_decl::language 3) change get_unnamed_section to have const char * as last argument instead of const void *, change unnamed_section::data also to const char * and update everything related to that 4) maybe add a host hook whether it is ok to support binaries changing addresses (the only thing I'm worried is if some host that uses function descriptors allocates them dynamically instead of having them somewhere in the executable) 5) maybe add a gengtype warning if it sees in GTY tracked structure a function pointer without that new callback option Here is 1), 2), 3) implemented. Note, on stdc++.h.gch/O2g.gch there are just those 10 relocations without the second patch, with it a few more, but nothing huge. And for non-PIEs there isn't really any extra work on the load side except freading two scalar values and fseek. 2021-12-03 Jakub Jelinek <jakub@redhat.com> PR pch/71934 gcc/ * ggc.h (gt_pch_note_callback): Declare. * gengtype.h (enum typekind): Add TYPE_CALLBACK. (callback_type): Declare. * gengtype.c (dbgprint_count_type_at): Handle TYPE_CALLBACK. (callback_type): New variable. (process_gc_options): Add CALLBACK argument, handle callback option. (set_gc_used_type): Adjust process_gc_options caller, if callback, set type to &callback_type. (output_mangled_typename): Handle TYPE_CALLBACK. (walk_type): Likewise. Handle callback option. (write_types_process_field): Handle TYPE_CALLBACK. (write_types_local_user_process_field): Likewise. (write_types_local_process_field): Likewise. (write_root): Likewise. (dump_typekind): Likewise. (dump_type): Likewise. * gengtype-state.c (type_lineloc): Handle TYPE_CALLBACK. (state_writer::write_state_callback_type): New method. (state_writer::write_state_type): Handle TYPE_CALLBACK. (read_state_callback_type): New function. (read_state_type): Handle TYPE_CALLBACK. * ggc-common.c (callback_vec): New variable. (gt_pch_note_callback): New function. (gt_pch_save): Stream out gt_pch_save function address and relocation table. (gt_pch_restore): Stream in saved gt_pch_save function address and relocation table and apply relocations if needed. * doc/gty.texi (callback): Document new GTY option. * varasm.c (get_unnamed_section): Change callback argument's type and last argument's type from const void * to const char *. (output_section_asm_op): Change argument's type from const void * to const char *, remove unnecessary cast. * tree-core.h (struct tree_translation_unit_decl): Drop GTY((skip)) from language member. * output.h (unnamed_section_callback): Change argument type from const void * to const char *. (struct unnamed_section): Use GTY((callback)) instead of GTY((skip)) for callback member. Change data member type from const void * to const char *. (struct noswitch_section): Use GTY((callback)) instead of GTY((skip)) for callback member. (get_unnamed_section): Change callback argument's type and last argument's type from const void * to const char *. (output_section_asm_op): Change argument's type from const void * to const char *. * config/avr/avr.c (avr_output_progmem_section_asm_op): Likewise. Remove unneeded cast. * config/darwin.c (output_objc_section_asm_op): Change argument's type from const void * to const char *. * config/pa/pa.c (som_output_text_section_asm_op): Likewise. (som_output_comdat_data_section_asm_op): Likewise. * config/rs6000/rs6000.c (rs6000_elf_output_toc_section_asm_op): Likewise. (rs6000_xcoff_output_readonly_section_asm_op): Likewise. Instead of dereferencing directive hardcode variable names and decide based on whether directive is NULL or not. (rs6000_xcoff_output_readwrite_section_asm_op): Change argument's type from const void * to const char *. (rs6000_xcoff_output_tls_section_asm_op): Likewise. Instead of dereferencing directive hardcode variable names and decide based on whether directive is NULL or not. (rs6000_xcoff_output_toc_section_asm_op): Change argument's type from const void * to const char *. (rs6000_xcoff_asm_init_sections): Adjust get_unnamed_section callers. gcc/c-family/ * c-pch.c (struct c_pch_validity): Remove pch_init member. (pch_init): Don't initialize v.pch_init. (c_common_valid_pch): Don't warn and punt if .text addresses change. libcpp/ * include/line-map.h (class line_maps): Add GTY((callback)) to reallocator and round_alloc_size members.	2021-12-03 11:03:30 +01:00
Jakub Jelinek	c264208e16	libcpp: Enable P1949R7 for C++98 too [PR100977] ... On Mon, Nov 29, 2021 at 05:53:58PM -0500, Jason Merrill wrote: > I'm inclined to go ahead and change C++98 as well; I doubt anyone is relying > on the particular C++98 extended character set rules, and we already accept > the union of the different sets when not pedantic. Ok, here is an incremental patch to do that also for -std={c,gnu}++98. 2021-12-01 Jakub Jelinek <jakub@redhat.com> PR c++/100977 * init.c (struct lang_flags): Remove cxx23_identifiers. (lang_defaults): Remove cxx23_identifiers initializers. (cpp_set_lang): Don't copy cxx23_identifiers. * include/cpplib.h (struct cpp_options): Adjust comment about c11_identifiers. Remove cxx23_identifiers field. * lex.c (warn_about_normalization): Use cplusplus instead of cxx23_identifiers. * charset.c (ucn_valid_in_identifier): Likewise. * g++.dg/cpp/ucnid-1.C: Adjust expected diagnostics. * g++.dg/cpp/ucnid-1-utf8.C: Likewise.	2021-12-01 10:21:20 +01:00
Marek Polacek	51c500269b	libcpp: Implement -Wbidi-chars for CVE-2021-42574 [PR103026] ... From a link below: "An issue was discovered in the Bidirectional Algorithm in the Unicode Specification through 14.0. It permits the visual reordering of characters via control sequences, which can be used to craft source code that renders different logic than the logical ordering of tokens ingested by compilers and interpreters. Adversaries can leverage this to encode source code for compilers accepting Unicode such that targeted vulnerabilities are introduced invisibly to human reviewers." More info: https://nvd.nist.gov/vuln/detail/CVE-2021-42574 https://trojansource.codes/ This is not a compiler bug. However, to mitigate the problem, this patch implements -Wbidi-chars=[none|unpaired|any] to warn about possibly misleading Unicode bidirectional control characters the preprocessor may encounter. The default is =unpaired, which warns about improperly terminated bidirectional control characters; e.g. a LRE without its corresponding PDF. The level =any warns about any use of bidirectional control characters. This patch handles both UCNs and UTF-8 characters. UCNs designating bidi characters in identifiers are accepted since r204886. Then r217144 enabled -fextended-identifiers by default. Extended characters in C/C++ identifiers have been accepted since r275979. However, this patch still warns about mixing UTF-8 and UCN bidi characters; there seems to be no good reason to allow mixing them. We warn in different contexts: comments (both C and C++-style), string literals, character constants, and identifiers. Expectedly, UCNs are ignored in comments and raw string literals. The bidirectional control characters can nest so this patch handles that as well. I have not included nor tested this at all with Fortran (which also has string literals and line comments). Dave M. posted patches improving diagnostic involving Unicode characters. This patch does not make use of this new infrastructure yet. PR preprocessor/103026 gcc/c-family/ChangeLog: * c.opt (Wbidi-chars, Wbidi-chars=): New option. gcc/ChangeLog: * doc/invoke.texi: Document -Wbidi-chars. libcpp/ChangeLog: * include/cpplib.h (enum cpp_bidirectional_level): New. (struct cpp_options): Add cpp_warn_bidirectional. (enum cpp_warning_reason): Add CPP_W_BIDIRECTIONAL. * internal.h (struct cpp_reader): Add warn_bidi_p member function. * init.c (cpp_create_reader): Set cpp_warn_bidirectional. * lex.c (bidi): New namespace. (get_bidi_utf8): New function. (get_bidi_ucn): Likewise. (maybe_warn_bidi_on_close): Likewise. (maybe_warn_bidi_on_char): Likewise. (_cpp_skip_block_comment): Implement warning about bidirectional control characters. (skip_line_comment): Likewise. (forms_identifier_p): Likewise. (lex_identifier): Likewise. (lex_string): Likewise. (lex_raw_string): Likewise. gcc/testsuite/ChangeLog: * c-c++-common/Wbidi-chars-1.c: New test. * c-c++-common/Wbidi-chars-2.c: New test. * c-c++-common/Wbidi-chars-3.c: New test. * c-c++-common/Wbidi-chars-4.c: New test. * c-c++-common/Wbidi-chars-5.c: New test. * c-c++-common/Wbidi-chars-6.c: New test. * c-c++-common/Wbidi-chars-7.c: New test. * c-c++-common/Wbidi-chars-8.c: New test. * c-c++-common/Wbidi-chars-9.c: New test. * c-c++-common/Wbidi-chars-10.c: New test. * c-c++-common/Wbidi-chars-11.c: New test. * c-c++-common/Wbidi-chars-12.c: New test. * c-c++-common/Wbidi-chars-13.c: New test. * c-c++-common/Wbidi-chars-14.c: New test. * c-c++-common/Wbidi-chars-15.c: New test. * c-c++-common/Wbidi-chars-16.c: New test. * c-c++-common/Wbidi-chars-17.c: New test.	2021-11-16 21:56:16 -05:00
David Malcolm	bd5e882cf6	diagnostics: escape non-ASCII source bytes for certain diagnostics ... This patch adds support to GCC's diagnostic subsystem for escaping certain bytes and Unicode characters when quoting source code. Specifically, this patch adds a new flag rich_location::m_escape_on_output which is a hint from a diagnostic that non-ASCII bytes in the pertinent lines of the user's source code should be escaped when printed. The patch sets this for the following diagnostics: - when complaining about stray bytes in the program (when these are non-printable) - when complaining about "null character(s) ignored"); - for -Wnormalized= (and generate source ranges for such warnings) The escaping is controlled by a new option: -fdiagnostics-escape-format=[unicode|bytes] For example, consider a diagnostic involing a source line containing the string "before" followed by the Unicode character U+03C0 ("GREEK SMALL LETTER PI", with UTF-8 encoding 0xCF 0x80) followed by the byte 0xBF (a stray UTF-8 trailing byte), followed by the string "after", where the diagnostic highlights the U+03C0 character. By default, this line will be printed verbatim to the user when reporting a diagnostic at it, as: beforeπXafter ^ (using X for the stray byte to avoid putting invalid UTF-8 in this commit message) If the diagnostic sets the "escape" flag, it will be printed as: before<U+03C0><BF>after ^~~~~~~~ with -fdiagnostics-escape-format=unicode (the default), or as: before<CF><80><BF>after ^~~~~~~~ if the user supplies -fdiagnostics-escape-format=bytes. This only affects how the source is printed; it does not affect how column numbers that are printed (as per -fdiagnostics-column-unit= and -fdiagnostics-column-origin=). gcc/c-family/ChangeLog: * c-lex.c (c_lex_with_flags): When complaining about non-printable CPP_OTHER tokens, set the "escape on output" flag. gcc/ChangeLog: * common.opt (fdiagnostics-escape-format=): New. (diagnostics_escape_format): New enum. (DIAGNOSTICS_ESCAPE_FORMAT_UNICODE): New enum value. (DIAGNOSTICS_ESCAPE_FORMAT_BYTES): Likewise. * diagnostic-format-json.cc (json_end_diagnostic): Add "escape-source" attribute. * diagnostic-show-locus.c (exploc_with_display_col::exploc_with_display_col): Replace "tabstop" param with a cpp_char_column_policy and add an "aspect" param. Use these to compute m_display_col accordingly. (struct char_display_policy): New struct. (layout::m_policy): New field. (layout::m_escape_on_output): New field. (def_policy): New function. (make_range): Update for changes to exploc_with_display_col ctor. (default_print_decoded_ch): New. (width_per_escaped_byte): New. (escape_as_bytes_width): New. (escape_as_bytes_print): New. (escape_as_unicode_width): New. (escape_as_unicode_print): New. (make_policy): New. (layout::layout): Initialize new fields. Update m_exploc ctor call for above change to ctor. (layout::maybe_add_location_range): Update for changes to exploc_with_display_col ctor. (layout::calculate_x_offset_display): Update for change to cpp_display_width. (layout::print_source_line): Pass policy to cpp_display_width_computation. Capture cpp_decoded_char when calling process_next_codepoint. Move printing of source code to m_policy.m_print_cb. (line_label::line_label): Pass in policy rather than context. (layout::print_any_labels): Update for change to line_label ctor. (get_affected_range): Pass in policy rather than context, updating calls to location_compute_display_column accordingly. (get_printed_columns): Likewise, also for cpp_display_width. (correction::correction): Pass in policy rather than tabstop. (correction::compute_display_cols): Pass m_policy rather than m_tabstop to cpp_display_width. (correction::m_tabstop): Replace with... (correction::m_policy): ...this. (line_corrections::line_corrections): Pass in policy rather than context. (line_corrections::m_context): Replace with... (line_corrections::m_policy): ...this. (line_corrections::add_hint): Update to use m_policy rather than m_context. (line_corrections::add_hint): Likewise. (layout::print_trailing_fixits): Likewise. (selftest::test_display_widths): New. (selftest::test_layout_x_offset_display_utf8): Update to use policy rather than tabstop. (selftest::test_one_liner_labels_utf8): Add test of escaping source lines. (selftest::test_diagnostic_show_locus_one_liner_utf8): Update to use policy rather than tabstop. (selftest::test_overlapped_fixit_printing): Likewise. (selftest::test_overlapped_fixit_printing_utf8): Likewise. (selftest::test_overlapped_fixit_printing_2): Likewise. (selftest::test_tab_expansion): Likewise. (selftest::test_escaping_bytes_1): New. (selftest::test_escaping_bytes_2): New. (selftest::diagnostic_show_locus_c_tests): Call the new tests. * diagnostic.c (diagnostic_initialize): Initialize context->escape_format. (convert_column_unit): Update to use default character width policy. (selftest::test_diagnostic_get_location_text): Likewise. * diagnostic.h (enum diagnostics_escape_format): New enum. (diagnostic_context::escape_format): New field. * doc/invoke.texi (-fdiagnostics-escape-format=): New option. (-fdiagnostics-format=): Add "escape-source" attribute to examples of JSON output, and document it. * input.c (location_compute_display_column): Pass in "policy" rather than "tabstop", passing to cpp_byte_column_to_display_column. (selftest::test_cpp_utf8): Update to use cpp_char_column_policy. * input.h (class cpp_char_column_policy): New forward decl. (location_compute_display_column): Pass in "policy" rather than "tabstop". * opts.c (common_handle_option): Handle OPT_fdiagnostics_escape_format_. * selftest.c (temp_source_file::temp_source_file): New ctor overload taking a size_t. * selftest.h (temp_source_file::temp_source_file): Likewise. gcc/testsuite/ChangeLog: * c-c++-common/diagnostic-format-json-1.c: Add regexp to consume "escape-source" attribute. * c-c++-common/diagnostic-format-json-2.c: Likewise. * c-c++-common/diagnostic-format-json-3.c: Likewise. * c-c++-common/diagnostic-format-json-4.c: Likewise, twice. * c-c++-common/diagnostic-format-json-5.c: Likewise. * gcc.dg/cpp/warn-normalized-4-bytes.c: New test. * gcc.dg/cpp/warn-normalized-4-unicode.c: New test. * gcc.dg/encoding-issues-bytes.c: New test. * gcc.dg/encoding-issues-unicode.c: New test. * gfortran.dg/diagnostic-format-json-1.F90: Add regexp to consume "escape-source" attribute. * gfortran.dg/diagnostic-format-json-2.F90: Likewise. * gfortran.dg/diagnostic-format-json-3.F90: Likewise. libcpp/ChangeLog: * charset.c (convert_escape): Use encoding_rich_location when complaining about nonprintable unknown escape sequences. (cpp_display_width_computation::::cpp_display_width_computation): Pass in policy rather than tabstop. (cpp_display_width_computation::process_next_codepoint): Add "out" param and populate *out if non-NULL. (cpp_display_width_computation::advance_display_cols): Pass NULL to process_next_codepoint. (cpp_byte_column_to_display_column): Pass in policy rather than tabstop. Pass NULL to process_next_codepoint. (cpp_display_column_to_byte_column): Pass in policy rather than tabstop. * errors.c (cpp_diagnostic_get_current_location): New function, splitting out the logic from... (cpp_diagnostic): ...here. (cpp_warning_at): New function. (cpp_pedwarning_at): New function. * include/cpplib.h (cpp_warning_at): New decl for rich_location. (cpp_pedwarning_at): Likewise. (struct cpp_decoded_char): New. (struct cpp_char_column_policy): New. (cpp_display_width_computation::cpp_display_width_computation): Replace "tabstop" param with "policy". (cpp_display_width_computation::process_next_codepoint): Add "out" param. (cpp_display_width_computation::m_tabstop): Replace with... (cpp_display_width_computation::m_policy): ...this. (cpp_byte_column_to_display_column): Replace "tabstop" param with "policy". (cpp_display_width): Likewise. (cpp_display_column_to_byte_column): Likewise. * include/line-map.h (rich_location::escape_on_output_p): New. (rich_location::set_escape_on_output): New. (rich_location::m_escape_on_output): New. * internal.h (cpp_diagnostic_get_current_location): New decl. (class encoding_rich_location): New. * lex.c (skip_whitespace): Use encoding_rich_location when complaining about null characters. (warn_about_normalization): Generate a source range when complaining about improperly normalized tokens, rather than just a point, and use encoding_rich_location so that the source code is escaped on printing. * line-map.c (rich_location::rich_location): Initialize m_escape_on_output. Signed-off-by: David Malcolm <dmalcolm@redhat.com>	2021-11-01 09:35:46 -04:00
Tobias Burnus	0078a058a5	libcpp: Fix _Pragma expansion [PR102409] ... Both #pragma and _Pragma ended up as CPP_PRAGMA. Presumably since r131819 (2008, GCC 4.3) for PR34692, pragmas are not expanded in macro arguments but are output as is before. From the old bug report, that was to fix usage like FOO ( #pragma GCC diagnostic ) However, that change also affected _Pragma such that BAR ( "1"; _Pragma("omp ..."); ) yielded #pragma omp ... followed by what BAR expanded too, possibly including '"1";'. This commit adds a flag, PRAGMA_OP, to tokens to make the two distinguishable - and include again _Pragma in the expanded arguments. libcpp/ChangeLog: PR c++/102409 * directives.c (destringize_and_run): Add PRAGMA_OP to the CPP_PRAGMA token's flags to mark is as coming from _Pragma. * include/cpplib.h (PRAGMA_OP): #define, to be used with token flags. * macro.c (collect_args): Only handle CPP_PRAGMA special if PRAGMA_OP is set. gcc/testsuite/ChangeLog: * c-c++-common/gomp/pragma-1.c: New test. * c-c++-common/gomp/pragma-2.c: New test.	2021-10-29 22:55:32 +02:00
Jakub Jelinek	c4d6dcacfc	libcpp: Implement C++23 P1949R7 - C++ Identifier Syntax using Unicode Standard Annex 31 ... The following patch implements the P1949R7 - C++ Identifier Syntax using Unicode Standard Annex 31 paper. We already allow UTF-8 characters in the source, so that part is already implemented, so IMHO all we need to do is pedwarn instead of just warn for the (default) -Wnormalize=nfc (or for -Wnormalize={id,nkfc}) if the character is not in NFC and to use the unicode XID_Start and XID_Continue derived code properties to find out what characters are allowed (the standard actually adds U+005F to XID_Start, but we are handling the ASCII compatible characters differently already and they aren't allowed in UCNs in identifiers). Instead of hardcoding the large tables in ucnid.tab, this patch makes makeucnid.c read them from the Unicode tables (13.0.0 version at this point). For non-pedantic mode, we accept as 2nd+ char in identifiers a union of valid characters in all supported modes, but for the 1st char it was actually pedantically requiring that it is not any of the characters that may not appear in the currently chosen standard as the first character. This patch changes it such that also what is allowed at the start of an identifier is a union of characters valid at the start of an identifier in any of the pedantic modes. 2021-09-01 Jakub Jelinek <jakub@redhat.com> PR c++/100977 libcpp/ * include/cpplib.h (struct cpp_options): Add cxx23_identifiers. * charset.c (CXX23, NXX23): New enumerators. (CID, NFC, NKC, CTX): Renumber. (ucn_valid_in_identifier): Implement P1949R7 - use CXX23 and NXX23 flags for cxx23_identifiers. For start character in non-pedantic mode, allow characters that are allowed as start characters in any of the supported language modes, rather than disallowing characters allowed only as non-start characters in current mode but for characters from other language modes allowing them even if they are never allowed at start. * init.c (struct lang_flags): Add cxx23_identifiers. (lang_defaults): Add cxx23_identifiers column. (cpp_set_lang): Initialize CPP_OPTION (pfile, cxx23_identifiers). * lex.c (warn_about_normalization): If cxx23_identifiers, use cpp_pedwarning_with_line instead of cpp_warning_with_line for "is not in NFC" diagnostics. * makeucnid.c: Adjust usage comment. (CXX23, NXX23): New enumerators. (all_languages): Add CXX23. (not_NFC, not_NFKC, maybe_not_NFC): Renumber. (read_derivedcore): New function. (write_table): Print also CXX23 and NXX23 columns. (main): Require 5 arguments instead of 4, call read_derivedcore. * ucnid.h: Regenerated using Unicode 13.0.0 files. gcc/testsuite/ * g++.dg/cpp23/normalize1.C: New test. * g++.dg/cpp23/normalize2.C: New test. * g++.dg/cpp23/normalize3.C: New test. * g++.dg/cpp23/normalize4.C: New test. * g++.dg/cpp23/normalize5.C: New test. * g++.dg/cpp23/normalize6.C: New test. * g++.dg/cpp23/normalize7.C: New test. * g++.dg/cpp23/ucnid-1-utf8.C: New test. * g++.dg/cpp23/ucnid-2-utf8.C: New test. * gcc.dg/cpp/ucnid-4.c: Don't expect "not valid at the start of an identifier" errors. * gcc.dg/cpp/ucnid-4-utf8.c: Likewise. * gcc.dg/cpp/ucnid-5-utf8.c: New test.	2021-09-01 22:33:06 +02:00
Martin Sebor	e4d2305adf	Disable gcc_rich_location copying and assignment. ... gcc/cp/ChangeLog: * parser.c (cp_parser_selection_statement): Use direct initialization instead of copy. gcc/ChangeLog: * gcc-rich-location.h (gcc_rich_location): Make ctor explicit. libcpp/ChangeLog: * include/line-map.h (class rich_location): Disable copying and assignment.	2021-08-31 11:15:21 -06:00
Lewis Hyatt	3ac6b5cff1	diagnostics: Support for -finput-charset [PR93067] ... Adds the logic to handle -finput-charset in layout_get_source_line(), so that source lines are converted from their input encodings prior to being output by diagnostics machinery. Also adds the ability to strip a UTF-8 BOM similarly. gcc/c-family/ChangeLog: PR other/93067 * c-opts.c (c_common_input_charset_cb): New function. (c_common_post_options): Call new function diagnostic_initialize_input_context(). gcc/d/ChangeLog: PR other/93067 * d-lang.cc (d_input_charset_callback): New function. (d_init): Call new function diagnostic_initialize_input_context(). gcc/fortran/ChangeLog: PR other/93067 * cpp.c (gfc_cpp_post_options): Call new function diagnostic_initialize_input_context(). gcc/ChangeLog: PR other/93067 * coretypes.h (typedef diagnostic_input_charset_callback): Declare. * diagnostic.c (diagnostic_initialize_input_context): New function. * diagnostic.h (diagnostic_initialize_input_context): Declare. * input.c (default_charset_callback): New function. (file_cache::initialize_input_context): New function. (file_cache_slot::create): Added ability to convert the input according to the input context. (file_cache::file_cache): Initialize the new input context. (class file_cache_slot): Added new m_alloc_offset member. (file_cache_slot::file_cache_slot): Initialize the new member. (file_cache_slot::~file_cache_slot): Handle potentially offset buffer. (file_cache_slot::maybe_grow): Likewise. (file_cache_slot::needs_read_p): Handle NULL fp, which is now possible. (file_cache_slot::get_next_line): Likewise. * input.h (class file_cache): Added input context member. libcpp/ChangeLog: PR other/93067 * charset.c (init_iconv_desc): Adapt to permit PFILE argument to be NULL. (_cpp_convert_input): Likewise. Also move UTF-8 BOM logic to... (cpp_check_utf8_bom): ...here. New function. (cpp_input_conversion_is_trivial): New function. * files.c (read_file_guts): Allow PFILE argument to be NULL. Add INPUT_CHARSET argument as an alternate source of this information. (read_file): Pass the new argument to read_file_guts. (cpp_get_converted_source): New function. * include/cpplib.h (struct cpp_converted_source): Declare. (cpp_get_converted_source): Declare. (cpp_input_conversion_is_trivial): Declare. (cpp_check_utf8_bom): Declare. gcc/testsuite/ChangeLog: PR other/93067 * gcc.dg/diagnostic-input-charset-1.c: New test. * gcc.dg/diagnostic-input-utf8-bom.c: New test.	2021-08-25 11:15:28 -04:00
Christophe Lyon	1a9b3f04c1	c: Add support for __FILE_NAME__ macro (PR c/42579) ... The toolchain provided by ST for stm32 has had support for __FILENAME__ for a while, but clang/llvm has recently implemented support for __FILE_NAME__, so it seems better to use the same macro name in GCC. It happens that the ST patch is similar to the one proposed in PR c/42579. Given these input files: :::::::::::::: mydir/myinc.h :::::::::::::: char* mystringh_file = __FILE__; char* mystringh_filename = __FILE_NAME__; char* mystringh_base_file = __BASE_FILE__; :::::::::::::: mydir/mysrc.c :::::::::::::: char* mystring_file = __FILE__; char* mystring_filename = __FILE_NAME__; char* mystring_base_file = __BASE_FILE__; we produce: $ gcc mydir/mysrc.c -I . -E char* mystringh_file = "./mydir/myinc.h"; char* mystringh_filename = "myinc.h"; char* mystringh_base_file = "mydir/mysrc.c"; char* mystring_file = "mydir/mysrc.c"; char* mystring_filename = "mysrc.c"; char* mystring_base_file = "mydir/mysrc.c"; 2021-05-20 Christophe Lyon <christophe.lyon@linaro.org> Torbjörn Svensson <torbjorn.svensson@st.com> PR c/42579 libcpp/ * include/cpplib.h (cpp_builtin_type): Add BT_FILE_NAME entry. * init.c (builtin_array): Likewise. * macro.c (_cpp_builtin_macro_text): Add support for BT_FILE_NAME. gcc/ * doc/cpp.texi (Common Predefined Macros): Document __FILE_NAME__. gcc/testsuite/ * c-c++-common/spellcheck-reserved.c: Add tests for __FILE_NAME__. * c-c++-common/cpp/file-name-1.c: New test.	2021-05-20 08:12:41 +00:00
Joseph Myers	71d38ec800	preprocessor: Support C2X #elifdef, #elifndef ... C2X adds #elifdef and #elifndef preprocessor directives; these have also been proposed for C++. Implement these directives in libcpp accordingly. In this implementation, #elifdef and #elifndef are treated as non-directives for any language version other than c2x and gnu2x (if the feature is accepted for C++, it can trivially be enabled for relevant C++ versions). In strict conformance modes for prior language versions, this is required, as illustrated by the c11-elifdef-1.c test added. Bootstrapped with no regressions for x86_64-pc-linux-gnu. libcpp/ * include/cpplib.h (struct cpp_options): Add elifdef. * init.c (struct lang_flags): Add elifdef. (lang_defaults): Update to include elifdef initializers. (cpp_set_lang): Set elifdef for pfile based on language. * directives.c (STDC2X, ELIFDEF): New macros. (EXTENSION): Increase value to 3. (DIRECTIVE_TABLE): Add #elifdef and #elifndef. (_cpp_handle_directive): Do not treat ELIFDEF directives as directives for language versions without the #elifdef feature. (do_elif): Handle #elifdef and #elifndef. (do_elifdef, do_elifndef): New functions. gcc/testsuite/ * gcc.dg/cpp/c11-elifdef-1.c, gcc.dg/cpp/c2x-elifdef-1.c, gcc.dg/cpp/c2x-elifdef-2.c: New tests.	2021-05-11 23:54:01 +00:00
Eric Botcazou	1174314811	Fix thinko in libcpp preparation patch for modules ... The problem is that the new IS_MACRO_LOC macro: inline bool IS_MACRO_LOC (location_t loc) { return !IS_ORDINARY_LOC (loc) && !IS_ADHOC_LOC (loc); } is not fully correct since the position of the macro lines is not fixed: /* Returns the lowest location [of a token resulting from macro expansion] encoded in this line table. */ inline location_t LINEMAPS_MACRO_LOWEST_LOCATION (const line_maps *set) { return LINEMAPS_MACRO_USED (set) ? MAP_START_LOCATION (LINEMAPS_LAST_MACRO_MAP (set)) : MAX_LOCATION_T + 1; } In Ada, LINEMAPS_MACRO_USED is false so LINEMAPS_MACRO_LOWEST_LOCATION is MAX_LOCATION_T + 1, but IS_MACRO_LOC nevertheless returns true for anything in the range [LINE_MAP_MAX_LOCATION; MAX_LOCATION_T], thus yielding an ICE in linemap_macro_map_lookup for very large files. libcpp/ * include/line-map.h (IS_MACRO_LOC): Delete. * line-map.c (linemap_location_from_macro_expansion_p): Test LINEMAPS_MACRO_LOWEST_LOCATION of the linemap. gcc/cp/ * module.cc (ordinary_loc_of): Test LINEMAPS_MACRO_LOWEST_LOCATION of the linemap. (module_state::write_location): Likewise.	2021-04-13 11:57:55 +02:00
Nathan Sidwell	f207eed69e	c++: Macro location fixes [PR 98718] ... This fixes some issues with macro maps. We were incorrectly calculating the number of macro expansions in a location span, and I had a workaround that partially covered that up. Further, while macro location spans are monotonic, that is not true of ordinary location spans. Thus we need to insert an indirection array when binary searching the latter. (We load ordinary locations before loading imports, but macro locations afterwards. We make sure an import location is de-macrofied, if needed.) PR c++/98718 gcc/cp/ * module.cc (ool): New indirection vector. (loc_spans::maybe_propagate): Location is not optional. (loc_spans::open): Likewise. Assert monotonically advancing. (module_for_ordinary_loc): Use ool indirection vector. (module_state::write_prepare_maps): Do not count empty macro expansions. Elide empty spans. (module_state::write_macro_maps): Skip empty expansions. (ool_cmp): New qsort comparator. (module_state::write): Create and destroy ool vector. (name_pending_imports): Fix dump push/pop. (preprocess_module): Likewise. Add more dumping. (preprocessed_module): Likewise. libcpp/ * include/line-map.h * line-map.c gcc/testsuite/ * g++.dg/modules/pr98718_a.C: New. * g++.dg/modules/pr98718_b.C: New.	2021-02-24 12:46:09 -08:00
Nathan Sidwell	1f9db6929d	c++: header-unit build capability [PR 99023] ... This defect really required building header-units and include translation of pieces of the standard library. This adds smarts to the modules test harness to do that -- accept .X files as the source file, but provide '-x c++-system-header $HDR' in the options. The .X file will be considered by the driver to be a linker script and ignored (with a warning). Using this we can add 2 tests that end up building list_initializer and iostream, along with a test that iostream's build include-translates list_initializer's #include. That discovered a set of issues with the -flang-info-include-translate=HDR handling, also fixed and documented here. PR c++/99023 gcc/cp/ * module.cc (canonicalize_header_name): Use cpp_probe_header_unit. (maybe_translate_include): Fix note_includes comparison. (init_modules): Fix note_includes string termination. libcpp/ * include/cpplib.h (cpp_find_header_unit): Rename to ... (cpp_probe_header_unit): ... this. * internal.h (_cp_find_header_unit): Declare. * files.c (cpp_find_header_unit): Break apart to .. (test_header_unit): ... this, and ... (_cpp_find_header_unit): ... and, or and ... (cpp_probe_header_unit): ... this. * macro.c (cpp_get_token_1): Call _cpp_find_header_unit. gcc/ * doc/invoke.texi (flang-info-include-translate): Document header lookup behaviour. gcc/testsuite/ * g++.dg/modules/modules.exp: Bail on cross-testing. Add support for .X files. * g++.dg/modules/pr99023_a.X: New. * g++.dg/modules/pr99023_b.X: New.	2021-02-18 13:22:48 -08:00
Ed Smith-Rowland	1f69e63cfc	c++: Implement C++23 P0330 - Literal Suffixes for ptrdiff_t and size_t. ... Integer literal suffixes for signed size ('z') and unsigned size (some permutation od 'zu') are provided as a language addition. gcc/c-family/ChangeLog: * c-cppbuiltin.c (c_cpp_builtins): Define __cpp_size_t_suffix. * c-lex.c (interpret_integer): Set node type for size literal. libcpp/ChangeLog: * expr.c (interpret_int_suffix): Detect 'z' integer suffix. (cpp_classify_number): Compat warning for use of 'z' suffix. * include/cpplib.h (struct cpp_options): New flag. (enum cpp_warning_reason): New flag. (CPP_N_USERDEF): Comment C++0x -> C++11. (CPP_N_SIZE_T): New flag for cpp_classify_number. * init.c (cpp_set_lang): Initialize new flag. gcc/testsuite/ChangeLog: * g++.dg/cpp0x/udlit-shadow-neg.C: Test for 'z' and 'zu' shadowing. * g++.dg/cpp23/feat-cxx2b.C: New test. * g++.dg/cpp23/size_t-literals.C: New test. * g++.dg/warn/Wsize_t-literals.C: New test.	2021-02-03 12:12:31 -05:00
Paul Fee	78739c2df7	c++: Add support for -std=c++23 ... Derived from the changes that added C++2a support in 2017. r8-3237-g026a79f70cf33f836ea5275eda72d4870a3041e5 No C++23 features are added here. Use of -std=c++23 sets __cplusplus to 202100L. $ g++ -std=c++23 -dM -E -x c++ - < /dev/null | grep cplusplus #define __cplusplus 202100L gcc/ * doc/cpp.texi (__cplusplus): Document value for -std=c++23 or -std=gnu++23. * doc/invoke.texi: Document -std=c++23 and -std=gnu++23. * dwarf2out.c (highest_c_language): Recognise C++20 and C++23. (gen_compile_unit_die): Recognise C++23. gcc/c-family/ * c-common.h (cxx_dialect): Add cxx23 as a dialect. * c.opt: Add options for -std=c++23, std=c++2b, -std=gnu++23 and -std=gnu++2b * c-opts.c (set_std_cxx23): New. (c_common_handle_option): Set options when -std=c++23 is enabled. (c_common_post_options): Adjust comments. (set_std_cxx20): Likewise. gcc/testsuite/ * lib/target-supports.exp (check_effective_target_c++2a): Check for C++2a or C++23. (check_effective_target_c++20_down): New. (check_effective_target_c++23_only): New. (check_effective_target_c++23): New. * g++.dg/cpp23/cplusplus.C: New. libcpp/ * include/cpplib.h (c_lang): Add CXX23 and GNUCXX23. * init.c (lang_defaults): Add rows for CXX23 and GNUCXX23. (cpp_init_builtins): Set __cplusplus to 202100L for C++23.	2021-01-26 17:11:34 -05:00
Jakub Jelinek	99dee82307	Update copyright years.	2021-01-04 10:26:59 +01:00
Nathan Sidwell	62c5ea5228	preprocessor: Deferred macro support ... For deferred macros we also need a new field on the macro itself, so that the module machinery can determine the macro was imported. Also the documentation for the hashnode's deferred field was incomplete. libcpp/ * include/cpplib.h (struct cpp_macro): Add imported_p field. (struct cpp_hashnode): Tweak deferred field documentation. * macro.c (_cpp_new_macro): Clear new field. (cpp_get_deferred_macro, get_deferred_or_lazy_macro): Assert more.	2020-12-14 07:23:59 -08:00
JeanHeyd Meneide	eccec86841	Feature: Macros for identifying the wide and narrow execution string literal encoding ... gcc/c-family * c-cppbuiltin.c (c_cpp_builtins): Add predefined {__GNUC_EXECUTION_CHARSET_NAME} and _WIDE_EXECUTION_CHARSET_NAME} macros. gcc/ * doc/cpp.texi: Document new macros. gcc/testsuite/ * c-c++-common/cpp/wide-narrow-predef-macros.c: New test. libcpp/ * charset.c (init_iconv_desc): Initialize "to" and "from" fields. * directives.c (cpp_get_narrow_charset_name): New function. (cpp_get_wide_charset_name): Likewise. * include/cpplib.h (cpp_get_narrow_charset_name): Prototype. (cpp_get_wide_charset_name): Likewise. * internal.h (cset_converter): Add "to" and "from" fields.	2020-12-01 14:46:51 -07:00
Nathan Sidwell	13f93cf533	preprocessor: Add deferred macros ... Deferred macros are needed for C++ modules. Header units may export macro definitions and undefinitions. These are resolved lazily at the point of (potential) use. (The language specifies that, it's not just a useful optimization.) Thus, identifier nodes grow a 'deferred' field, which fortunately doesn't expand the structure on 64-bit systems as there was padding there. This is non-zero on NT_MACRO nodes, if the macro is deferred. When such an identifier is lexed, it is resolved via a callback that I added recently. That will either provide the macro definition, or discover it there was an overriding undef. Either way the identifier is no longer a deferred macro. Notice it is now possible for NT_MACRO nodes to have a NULL macro expansion. libcpp/ * include/cpplib.h (struct cpp_hashnode): Add deferred field. (cpp_set_deferred_macro): Define. (cpp_get_deferred_macro): Declare. (cpp_macro_definition): Reformat, add overload. (cpp_macro_definition_location): Deal with deferred macro. (cpp_alloc_token_string, cpp_compare_macro): Declare. * internal.h (_cpp_notify_macro_use): Return bool (_cpp_maybe_notify_macro_use): Likewise. * directives.c (do_undef): Check macro is not undef before warning. (do_ifdef, do_ifndef): Deal with deferred macro. * expr.c (parse_defined): Likewise. * lex.c (cpp_allocate_token_string): Break out of ... (create_literal): ... here. Call it. (cpp_maybe_module_directive): Deal with deferred macro. * macro.c (cpp_get_token_1): Deal with deferred macro. (warn_of_redefinition): Deal with deferred macro. (compare_macros): Rename to ... (cpp_compare_macro): ... here. Make extern. (cpp_get_deferred_macro): New. (_cpp_notify_macro_use): Deal with deferred macro, return bool indicating definedness. (cpp_macro_definition): Deal with deferred macro.	2020-11-24 08:31:03 -08:00
Nathan Sidwell	9844497a93	preprocessor: main file searching ... This adds the capability to locate the main file on the user or system include paths. That's extremely useful to users building header units. Searching has to be requiested (plain header-unit compilation will not search). Also, to make include_next work as expected when building a header unit, we add a mechanism to retrofit a non-searched source file as one on the include path. libcpp/ * include/cpplib.h (enum cpp_main_search): New. (struct cpp_options): Add main_search field. (cpp_main_loc): Declare. (cpp_retrofit_as_include): Declare. * internal.h (struct cpp_reader): Add main_loc field. (_cpp_in_main_source_file): Not main if main is a header. * init.c (cpp_read_main_file): Use main_search option to locate main file. Set main_loc * files.c (cpp_retrofit_as_include): New.	2020-11-19 07:05:08 -08:00
Nathan Sidwell	c9c3d5f28a	preprocessor: C++ module-directives ... C++20 modules introduces a new kind of preprocessor directive -- a module directive. These are directives but without the leading '#'. We have to detect them by sniffing the start of a logical line. When detected we replace the initial identifiers with unspellable tokens and pass them through to the language parser the same way deferred pragmas are. There's a PRAGMA_EOL at the logical end of line too. One additional complication is that we have to do header-name lexing after the initial tokens, and that requires changes in the macro-aware piece of the preprocessor. The above sniffer sets a counter in the lexer state, and that triggers at the appropriate point. We then do the same header-name lexing that occurs on a #include directive or has_include pseudo-macro. Except that the header name ends up in the token stream. A couple of token emitters need to deal with the new token possibility. gcc/c-family/ * c-lex.c (c_lex_with_flags): CPP_HEADER_NAMEs can now be seen. libcpp/ * include/cpplib.h (struct cpp_options): Add module_directives option. (NODE_MODULE): New node flag. (struct cpp_hashnode): Make rid-code a bitfield, increase bits in flags and swap with type field. * init.c (post_options): Create module-directive identifier nodes. * internal.h (struct lexer_state): Add directive_file_token & n_modules fields. Add module node enumerator. * lex.c (cpp_maybe_module_directive): New. (_cpp_lex_token): Call it. (cpp_output_token): Add '"' around CPP_HEADER_NAME token. (do_peek_ident, do_peek_module): New. (cpp_directives_only): Detect module-directive lines. * macro.c (cpp_get_token_1): Deal with directive_file_token triggering.	2020-11-18 10:24:12 -08:00
Nathan Sidwell	7ceb899e93	preprocessor: Add support for header unit translation ... libcpp/ * files.c (struct _cpp_file): Add header_unit field. (_cpp_stack_file): Add header unit support. (cpp_find_header_unit): New. * include/cpplib.h (cpp_find_header_unit): Declare.	2020-11-18 08:45:46 -08:00
Nathan Sidwell	db87f19ae3	preprocessor: Update mkdeps for modules ... This is slightly different to the original patch I posted. This adds separate module target and dependency functions (rather than a single bi-modal function). libcpp/ * include/cpplib.h (struct cpp_options): Add modules to dep-options. * include/mkdeps.h (deps_add_module_target): Declare. (deps_add_module_dep): Declare. * mkdeps.c (class mkdeps): Add modules, module_name, cmi_name, is_header_unit fields. Adjust cdtors. (deps_add_module_target, deps_add_module_dep): New. (make_write): Write module dependencies, if enabled.	2020-11-18 08:44:49 -08:00
Nathan Sidwell	b196e76aec	preprocessor: new callbacks ... These two callbacks are needed for C++ modules. The first is for handling macros from header-units. These are resolved lazily. The second is for include-translation -- whether a #include gets turned into a header-unit import. libcpp/ * include/cpplib.h (struct cpp_callbacks): Add user_deferred_macro & translate_include.	2020-11-17 08:22:02 -08:00
Nathan Sidwell	1f8ac75991	preprocessor: module line maps ... This patch adds LC_MODULE as a map kind, used to indicate a c++ module. Unlike a regular source file, it only contains a single location, and the source locations in that module are represented by ordinary locations whose 'included_from' location is the module. It also exposes some entry points that modules will use to create blocks of line maps. In the original posting, I'd missed the deletion of the linemap_enter_macro from internal.h. That's included here. libcpp/ * include/line-map.h (enum lc_reason): Add LC_MODULE. (MAP_MODULE_P): New. (line_map_new_raw): Declare. (linemap_enter_macro): Move declaration from internal.h (linemap_module_loc, linemap_module_reparent) (linemap_module_restore): Declare. (linemap_lookup_macro_indec): Declare. * internal.h (linemap_enter_macro): Moved to line-map.h. * line-map.c (linemap_new_raw): New, broken out of ... (new_linemap): ... here. Call it. (LAST_SOURCE_LINE_LOCATION): New. (liemap_module_loc, linemap_module_reparent) (linemap_module_restore): New. (linemap_lookup_macro_index): New, broken out of ... (linemap_macro_map_lookup): ... here. Call it. (linemap_dump): Add module dump.	2020-11-17 08:10:56 -08:00
Piotr H. Dabrowski	6f1ae1ecd3	Do not warn about unused macros while processing #pragma GCC optimize ... libcpp PR c++/91318 * include/cpplib.h: Added cpp_define_unused(), cpp_define_formatted_unused() * directives.c: Likewise. gcc/c-family PR c++/91318 * c-cppbuiltin.c: c_cpp_builtins_optimize_pragma(): use cpp_define_unused()	2020-11-13 12:28:33 -05:00
Joseph Myers	1d00f8c863	c: C2x __has_c_attribute ... C2x adds the __has_c_attribute preprocessor operator, similar to C++ __has_cpp_attribute. GCC implements __has_cpp_attribute as exactly equivalent to __has_attribute. (The documentation says they differ regarding the values returned for standard attributes, but that's actually only a matter of the particular nonzero value returned not being specified in the documentation for __has_attribute; the implementation makes no distinction between the two.) I don't think having them exactly equivalent is actually correct, either for __has_cpp_attribute or for __has_c_attribute. Specifically, I think it is only correct for __has_cpp_attribute or __has_c_attribute to return nonzero if the given attribute is supported, with the particular pp-tokens passed to __has_cpp_attribute or __has_c_attribute, with [[]] syntax, not if it's only accepted in __attribute__ or with gnu:: added in [[]]. For example, they should return nonzero for gnu::packed, but zero for plain packed, because [[gnu::packed]] is accepted but [[packed]] is ignored as not a standard attribute. This patch implements that for __has_c_attribute, leaving any changes to __has_cpp_attribute for the C++ maintainers. A new BT_HAS_STD_ATTRIBUTE is added for __has_c_attribute (which I think, based on the above, would actually be correct to use for __has_cpp_attribute as well). The code in c_common_has_attribute that deals with scopes has its C++ conditional removed; instead, whether the language is C or C++ is used only to determine the numeric values returned for standard attributes (and which standard attributes are handled there at all). A new argument is passed to c_common_has_attribute to distinguish BT_HAS_STD_ATTRIBUTE from BT_HAS_ATTRIBUTE, and that argument is used to stop attributes with no scope specified from being accepted with __has_c_attribute unless they are one of the known standard attributes and so handled specially. Although the standard specify constants ending with 'L' as the values for the standard attributes, there is no correctness issue with the lack of code in GCC to add that 'L' to the expansion: __has_c_attribute and __has_cpp_attribute are expanded in #if after other macro expansion has occurred, with no semantics being specified if they occur outside #if, so there is no way for a conforming program to inspect the exact text of the expansion of those macros, only to use the resulting pp-number in a #if expression, where long and int have the same set of values. Bootstrapped with no regressions for x86_64-pc-linux-gnu. gcc/ 2020-11-12 Joseph Myers <joseph@codesourcery.com> * doc/cpp.texi (__has_attribute): Document when scopes are allowed for C. (__has_c_attribute): New. gcc/c-family/ 2020-11-12 Joseph Myers <joseph@codesourcery.com> * c-lex.c (c_common_has_attribute): Take argument std_syntax. Allow scope for C. Handle standard attributes for C. Do not accept unscoped attributes if std_syntax and not handled as standard attributes. * c-common.h (c_common_has_attribute): Update prototype. gcc/testsuite/ 2020-11-12 Joseph Myers <joseph@codesourcery.com> * gcc.dg/c2x-has-c-attribute-1.c, gcc.dg/c2x-has-c-attribute-2.c, gcc.dg/c2x-has-c-attribute-3.c, gcc.dg/c2x-has-c-attribute-4.c: New tests. libcpp/ 2020-11-12 Joseph Myers <joseph@codesourcery.com> * include/cpplib.h (struct cpp_callbacks): Add bool argument to has_attribute. (enum cpp_builtin_type): Add BT_HAS_STD_ATTRIBUTE. * init.c (builtin_array): Add __has_c_attribute. (cpp_init_special_builtins): Handle BT_HAS_STD_ATTRIBUTE. * macro.c (_cpp_builtin_macro_text): Handle BT_HAS_STD_ATTRIBUTE. Update call to has_attribute for BT_HAS_ATTRIBUTE. * traditional.c (fun_like_macro): Handle BT_HAS_STD_ATTRIBUTE.	2020-11-12 21:13:51 +00:00
Nathan Sidwell	4b5f564a5d	libcpp: Provide date routine ... Joseph pointed me at cb_get_source_date_epoch, which allows repeatable builds and solves a FIXME I had on the modules branch. Unfortunately it's used exclusively to generate __DATE__ and __TIME__ values, which fallback to using a time(2) call. It'd be nicer if the preprocessor made whatever time value it determined available to the rest of the compiler. So this patch adds a new cpp_get_date function, which abstracts the call to the get_source_date_epoch hook, or uses time directly. The value is cached. Thus the timestamp I end up putting on CMI files matches __DATE__ and __TIME__ expansions. That seems worthwhile. libcpp/ * include/cpplib.h (enum class CPP_time_kind): New. (cpp_get_date): Declare. * internal.h (struct cpp_reader): Replace source_date_epoch with time_stamp and time_stamp_kind. * init.c (cpp_create_reader): Initialize them. * macro.c (_cpp_builtin_macro_text): Use cpp_get_date. (cpp_get_date): Broken out from _cpp_builtin_macro_text and genericized.	2020-11-06 08:59:20 -08:00
Nathan Sidwell	918e8b10a7	libcpp: dependency emission tidying ... This patch cleans up the interface to the dependency generation a little. We now only check the option in one place, and the cpp_get_deps function returns nullptr if there are no dependencies. I also reworded the -MT and -MQ help text to be make agnostic -- as there are ideas about emitting, say, JSON. libcpp/ * include/mkdeps.h: Include cpplib.h (deps_write): Adjust first parm type. * mkdeps.c: Include internal.h (make_write): Adjust first parm type. Check phony option directly. (deps_write): Adjust first parm type. * init.c (cpp_read_main_file): Use get_deps. * directives.c (cpp_get_deps): Check option before initializing. gcc/c-family/ * c.opt (MQ,MT): Reword description to be make-agnostic. gcc/fortran/ * cpp.c (gfc_cpp_add_dep): Only add dependency if we're recording them. (gfc_cpp_init): Likewise for target.	2020-11-03 05:16:19 -08:00
Patrick Palka	4839de55e2	c-family: Macro support in -Wmisleading-indentation [PR80076] ... Currently the -Wmisleading-indentation warning doesn't do any analysis when the guarded statement or the statement after it is produced by a macro. This means we warn for: if (flag) foo (); bar (); but not for: #define BAR bar if (flag) foo (); BAR (); This patch extends the -Wmisleading-indentation implementation to support analyzing such statements and their tokens. This is done in the "natural" way by resolving the location of each of the three tokens to the token's macro expansion point. (Additionally, if the tokens all resolve to the same macro expansion point then we instead use their locations within the macro definition.) When these resolved locations are all different, then we can proceed with applying the warning heuristics to them as if no macros were involved. gcc/c-family/ChangeLog: PR c/80076 * c-indentation.c (should_warn_for_misleading_indentation): Move declarations of local variables closer to their first use. Handle virtual token locations by resolving them to their respective macro expansion points. If all three tokens are produced from the same macro expansion, then instead use their loci within the macro definition. gcc/objc/ChangeLog: PR c/80076 * objc-gnu-runtime-abi-01.c (gnu_runtime_abi_01_get_class_super_ref): Reduce indentation of misleadingly indented return statements. * objc-next-runtime-abi-01.c (next_runtime_abi_01_get_class_super_ref): Likewise. gcc/ChangeLog: PR c/80076 * gensupport.c (alter_attrs_for_subst_insn) <case SET_ATTR>: Reduce indentation of misleadingly indented code fragment. * lra-constraints.c (multi_block_pseudo_p): Likewise. * sel-sched-ir.c (merge_fences): Likewise. libcpp/ChangeLog: PR c/80076 * include/line-map.h (first_map_in_common): Declare. * line-map.c (first_map_in_common): Remove static. gcc/testsuite/ChangeLog: PR c/80076 * c-c++-common/Wmisleading-indentation-5.c: New test.	2020-09-17 14:27:22 -04:00