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83
gcc/ChangeLog
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2020-06-15 Eric Botcazou <ebotcazou@gcc.gnu.org>
* gimplify.c (gimplify_init_constructor) <AGGREGATE_TYPE>: Declare
new ENSURE_SINGLE_ACCESS constant and move variables down. If it is
true and all elements are zero, then always clear. Return GS_ERROR
if a temporary would be created for it and NOTIFY_TEMP_CREATION set.
(gimplify_modify_expr_rhs) <VAR_DECL>: If the target is volatile but
the type is aggregate non-addressable, ask gimplify_init_constructor
whether it can generate a single access to the target.
2020-06-15 Eric Botcazou <ebotcazou@gcc.gnu.org>
* tree-sra.c (propagate_subaccesses_from_rhs): When a non-scalar
access on the LHS is replaced with a scalar access, propagate the
TYPE_REVERSE_STORAGE_ORDER flag of the type of the original access.
2020-06-15 Max Filippov <jcmvbkbc@gmail.com>
* config/xtensa/xtensa.c (TARGET_HAVE_TLS): Remove
TARGET_THREADPTR reference.
(xtensa_tls_symbol_p, xtensa_tls_referenced_p): Use
targetm.have_tls instead of TARGET_HAVE_TLS.
(xtensa_option_override): Set targetm.have_tls to false in
configurations without THREADPTR.
2020-06-15 Max Filippov <jcmvbkbc@gmail.com>
* config/xtensa/elf.h (ASM_SPEC, LINK_SPEC): Pass ABI switch to
assembler/linker.
* config/xtensa/linux.h (ASM_SPEC, LINK_SPEC): Ditto.
* config/xtensa/uclinux.h (ASM_SPEC, LINK_SPEC): Ditto.
* config/xtensa/xtensa.c (xtensa_option_override): Initialize
xtensa_windowed_abi if needed.
* config/xtensa/xtensa.h (TARGET_WINDOWED_ABI_DEFAULT): New
macro.
(TARGET_WINDOWED_ABI): Redefine to xtensa_windowed_abi.
* config/xtensa/xtensa.opt (xtensa_windowed_abi): New target
option variable.
(mabi=call0, mabi=windowed): New options.
* doc/invoke.texi: Document new -mabi= Xtensa-specific options.
2020-06-15 Max Filippov <jcmvbkbc@gmail.com>
* config/xtensa/xtensa.c (xtensa_can_eliminate): New function.
(TARGET_CAN_ELIMINATE): New macro.
* config/xtensa/xtensa.h
(XTENSA_WINDOWED_HARD_FRAME_POINTER_REGNUM)
(XTENSA_CALL0_HARD_FRAME_POINTER_REGNUM): New macros.
(HARD_FRAME_POINTER_REGNUM): Define using
XTENSA_*_HARD_FRAME_POINTER_REGNUM.
(ELIMINABLE_REGS): Replace lines with HARD_FRAME_POINTER_REGNUM
by lines with XTENSA_WINDOWED_HARD_FRAME_POINTER_REGNUM and
XTENSA_CALL0_HARD_FRAME_POINTER_REGNUM.
2020-06-15 Felix Yang <felix.yang@huawei.com>
* tree-vect-data-refs.c (vect_verify_datarefs_alignment): Rename
parameter to loop_vinfo and update uses. Use LOOP_VINFO_DATAREFS
when possible.
(vect_analyze_data_refs_alignment): Likewise, and use LOOP_VINFO_DDRS
when possible.
* tree-vect-loop.c (vect_dissolve_slp_only_groups): Use
LOOP_VINFO_DATAREFS when possible.
(update_epilogue_loop_vinfo): Likewise.
2020-06-15 Kito Cheng <kito.cheng@sifive.com>
* config/riscv/riscv.c (riscv_gen_gpr_save_insn): Change type to
unsigned for i.
(riscv_gpr_save_operation_p): Change type to unsigned for i and
len.
2020-06-15 Hongtao Liu <hongtao.liu@intel.com>
PR target/95488
* config/i386/i386-expand.c (ix86_expand_vecmul_qihi): New
function.
* config/i386/i386-protos.h (ix86_expand_vecmul_qihi): Declare.
* config/i386/sse.md (mul<mode>3): Drop mask_name since
there's no real simd int8 multiplication instruction with
mask. Also optimize it under TARGET_AVX512BW.
(mulv8qi3): New expander.
2020-06-12 Marco Elver <elver@google.com>
* gimplify.c (gimplify_function_tree): Optimize and do not emit

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gcc/ada/ChangeLog
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2020-06-15 Eric Botcazou <ebotcazou@adacore.com>
* sem_eval.ads (Predicates_Match): Fix description.
* sem_eval.adb (Predicates_Match): Rewrite.
2020-06-15 Ed Falis <falis@adacore.com>
* Makefile.rtl: Change name of hie/g-io__vxworks-ppc-cert.adb.
2020-06-15 Arnaud Charlet <charlet@adacore.com>
* sem_ch8.adb (Premature_Usage): Add support for subtype
references and replace set of if-then-else by a case statement.
2020-06-15 Piotr Trojanek <trojanek@adacore.com>
* sem_prag.adb (Analyze_Depends_In_Decl_Part,
Analyze_Global_In_Decl_Part): Bring back task discriminants for
analysis of the Global/Depends contracts; add comments.
2020-06-15 Eric Botcazou <ebotcazou@adacore.com>
* einfo.ads (Return_Applies_To): Document special usage for E_Block.
* einfo.adb (Write_Field8_Name): Write it for E_Block too.
* exp_ch4.adb (Expand_N_Type_Conversion): Remove implementation of
the check prescribed by AI05-0073.
* exp_ch6.adb (Apply_CW_Accessibility_Check): New procedure to apply
the check prescribed by AI95-344 extracted from...
(Expand_N_Extended_Return_Statement): Apply the check prescribed by
AI95-344 to the expression, if present. Suppress only access checks
when analyzing the rewritten result.
(Expand_Simple_Function_Return): ...here. Rename local variable.
Call Apply_CW_Accessibility_Check to apply the check prescribed by
AI95-344, but do not do it for the simple return statement generated
by the expansion of an extended return statement. Apply the check
prescribed by AI05-0073 to all functions returning anonymous access
type designating a specific tagged type, but not if the expression
was null or tag checks are suppressed for the type, and use Not In
operator rather than comparing the tags explicitly.
* sem.adb (Analyze): Handle all Suppress values.
* sem_ch6.adb (Analyze_Function_Return): Do not explicitly apply
predicate checks in the case of an extended return statement.
Do not apply an implicit conversion to the anonymous access result
type in the case of the simple return statement generated by the
expansion of an extended return statement.
(New_Overloaded_Entity): Small comment tweak.
* treepr.adb (Print_Node): Fix typo in flag string.
2020-06-15 Bob Duff <duff@adacore.com>
* exp_put_image.ads, exp_put_image.adb
(Image_Should_Call_Put_Image): New function to determine whether
the call to Put_Image should be generated.
(Build_Image_Call): New procedure to generate the call to
Put_Image.
* exp_imgv.adb (Expand_Image_Attribute): Use underlying types to
bypass privacy (only in Ada 2020). If
Image_Should_Call_Put_Image is True (which happens only in Ada
2020), then call Build_Image_Call.
* rtsfind.ads, rtsfind.adb: Add the necessary declarations in
Ada.Strings.Text_Output.Buffers.
* sem_attr.adb (Check_Image_Type): Enable the Ada 2020 case.
* libgnat/a-stoufo.ads, libgnat/a-stoufo.adb: Use the less
restrictive type that allows newline characters.
2020-06-15 Gary Dismukes <dismukes@adacore.com>
* exp_ch9.ads (Build_Master_Declaration): Add commas.
* exp_ch9.adb (Build_Master_Entity): Spelling fix ("build" =>
"built").
(Build_Task_Activation_Call): Fix word order.
2020-06-15 Arnaud Charlet <charlet@adacore.com>
* libgnat/a-nbnbin.ads (Big_Positive, Big_Natural): Fix
predicate.
2020-06-15 Piotr Trojanek <trojanek@adacore.com>
* sem_ch13.adb (Analyze_Aspect_Relaxed_Initialization): Fix
dealing with scopes on subprogram bodies that act as specs.
* sem_util.adb (Has_Relaxed_Initialization): Fix trivial
mistake.
2020-06-15 Javier Miranda <miranda@adacore.com>
* restrict.ads (Set_Global_No_Tasking, Global_No_Tasking): New
subprograms.
* restrict.adb (Set_Global_No_Tasking, Global_No_Tasking): New
subprograms.
* sem_ch3.adb (Access_Definition): Do not skip building masters
since they may be required for BIP calls.
(Analyze_Subtype_Declaration): Propagate attribute
Is_Limited_Record in class-wide subtypes and subtypes with
cloned subtype attribute; propagate attribute
Is_Limited_Interface.
* sem_ch6.adb (Check_Anonymous_Return): Do not skip building
masters since they may be required for BIP calls. Use
Build_Master_Declaration to declare the _master variable.
(Create_Extra_Formals): Add decoration of Has_Master_Entity when
the _master formal is added.
* exp_ch3.adb (Init_Formals): Adding formal to decorate it with
attribute Has_Master_Entity when the _master formal is added.
(Build_Master): Do not skip building masters since they may be
required for BIP calls.
(Expand_N_Object_Declaration): Ensure activation chain and
master entity for objects initialized with BIP function calls.
* sem_prag.adb (Process_Restrictions_Or_Restriction_Warnings):
Adding support to detect and save restriction No_Tasking when
set in the run-time package System or in a global configuration
pragmas file.
* sem_util.adb (Current_Entity_In_Scope): Overload this
subprogram to allow searching for an entity by its Name.
* sem_util.ads (Current_Entity_In_Scope): Update comment.
* exp_ch4.adb (Expand_N_Allocator): Do not skip building masters
since they may be required for BIP calls.
* exp_ch6.ads (Might_Have_Tasks): New subprogram.
* exp_ch6.adb (Make_Build_In_Place_Call_In_Allocator): Add
support for BIP calls returning objects that may have tasks.
(Make_Build_In_Place_Call_In_Allocator): Build the activation
chain if the result might have tasks.
(Make_Build_In_Place_Iface_Call_In_Allocator): Build the class
wide master for the result type.
(Might_Have_Tasks): New subprogram.
(Needs_BIP_Task_Actuals): Returns False when restriction
No_Tasking is globally set.
* exp_ch9.ads (Build_Master_Declaration): New subprogram.
* exp_ch9.adb (Build_Activation_Chain_Entity): No action
performed when restriction No_Tasking is globally set.
(Build_Class_Wide_Master): No action performed when restriction
No_Tasking is globally set; use Build_Master_Declaration to
declare the _master variable.
(Build_Master_Declaration): New subprogram.
(Build_Master_Entity): No action performed when restriction
No_Tasking is globally set; added support to handle transient
scopes and _finalizer routines.
(Build_Master_Renaming): No action performed when restriction
No_Tasking is globally set.
(Build_Task_Activation_Call): Skip generating the call when
the chain is an ignored ghost entity.
(Find_Master_Scope): Generalize the code that detects transient
scopes with master entity.
* einfo.ads (Has_Nested_Subprogram): Minor comment reformatting.
2020-06-15 Arnaud Charlet <charlet@adacore.com>
* sem_attr.adb (Eval_Attribute): Protect against previous
errors.
* sem_ch13.adb (Analyze_Aspect_Default_Value): Remove redundant
error checking, handling in Analyze_Aspect_Specifications.
(Analyze_Aspect_Specifications): Refine error messages on
Default_[Component_]Value.
(Check_Aspect_Too_Late): New procedure.
(Rep_Item_Too_Late.Is_Derived_Type_With_Constraint): Remove,
dead code.
* aspects.ads (Is_Representation_Aspect): Default_Value is a
representation aspect.
2020-06-15 Arnaud Charlet <charlet@adacore.com>
* libgnat/a-wichha.ads, libgnat/a-wichha.adb,
libgnat/a-wichun.ads, libgnat/a-wichun.adb (Is_Basic, To_Basic):
New.
* libgnat/s-utf_32.ads, libgnat/s-utf_32.adb (Is_UTF_32_Basic,
To_UTF_32_Basic, Decomposition_Search): New subprograms.
(Unicode_Decomposition): New table.
2020-06-15 Gary Dismukes <dismukes@adacore.com>
* exp_ch6.adb (Add_Call_By_Copy_Code): In the case of a view
conversion passed to a scalar out-mode parameter where the
formal has Default_Value set, declare the copy temp with the
base type of the formal's subtype and initialize the copy temp
with the actual's value.
2020-06-15 Justin Squirek <squirek@adacore.com>
* exp_ch4.adb (Expand_N_Case_Expression): Set default value for
Target to silence potential warnings.
(Expand_N_If_Expression): Add calculation to check when the if
expression is used directly in the context of an actual of an
anonymous access type and add a special path to force expansion
of the if expression in this case.
* exp_ch6.adb (Expand_Branch): Generate an assignment to the
level temporary for a given branch.
(Expand_Call_Helper): Add expansion to allow for creating a
temporary to store associated accessiblity levels on each branch
of the conditional expression. Also perform expansion of
function calls into expressions with actions, and fixup
references to N with Call_Node.
(Insert_Level_Assign): Move through nested conditional
expressions to each branch.
* sem_util.ads, sem_util.adb (Is_Anonymous_Access_Actual): Added
to detect when to force expansion of if expressions.
2020-06-15 Piotr Trojanek <trojanek@adacore.com>
* sem_prag.adb (Analyze_Depends_In_Decl_Part,
Analyze_Global_In_Decl_Part): Do not install task discriminants
for analysis of the Global/Depends contracts.
2020-06-15 Piotr Trojanek <trojanek@adacore.com>
* contracts.adb (Analyze_Object_Contract): Do not expect
Global/Depends on single protected units.
2020-06-15 Justin Squirek <squirek@adacore.com>
* sem_res.adb (Valid_Conversion): Add missing condition to
trigger proper static accessiblity failiures when the target
type is an anonymous access.
2020-06-15 Piotr Trojanek <trojanek@adacore.com>
* exp_ch6.adb (Expand_Call_Helper): Replace repeated Ekind with
Ekind_In.
2020-06-15 Piotr Trojanek <trojanek@adacore.com>
* exp_ch6.adb, sem_util.adb: Remove excessive parents,
especially since they don't make the code any easier to read.
2020-06-15 Piotr Trojanek <trojanek@adacore.com>
* aspects.ads (Aspect_Id): Add Aspect_Relaxed_Initialization.
(Implementation_Defined_Aspect): Add new aspect.
(Aspect_Argument): Add new aspect with Optional_Expression
argument.
(Is_Representation_Aspect): Add new aspect as a
non-representation one.
(Aspect_Names): Add name for the new aspect.
(Aspect_Delay): Add new aspect as a non-delayed one.
* sem_ch3.adb: Minor reformatting.
* einfo.ads, einfo.adb (Is_Relaxed_Initialization_State): New
query; reuses existing code for querying abstract state options.
* exp_attr.adb (Expand_N_Attribute_Reference): For now ignore
attribute 'Initialized.
* sem_attr.adb (Analyze_Attribute_Old_Result): Allow attribute
'Result to be used in the aspect Relaxed_Initialization
expression.
(Analyze_Attribute): Analyze attribute 'Initialized; based on
existing code for attribute 'Valid_Scalars.
(Eval_Attribute): Do not expect attribute 'Initialized, just
like attribute 'Valid_Scalars is not expected.
* sem_ch13.adb (Analyze_Aspect_Relaxed_Initialization): New
routine.
(Analyze_Aspect_Specifications): Analyze new aspect in a
dedicated routine.
(Check_Aspect_At_Freeze_Point): Do not expect new aspect.
* sem_prag.adb (Analyze_Abstract_State): Support option
Relaxed_Initialization on abstract states.
* sem_util.ads, sem_util.adb (Has_Relaxed_Initialization): New
query for the GNATprove backend.
* snames.ads-tmpl (Snames): Add Name_Ids for the new aspect and
attribute; add an Attribute_Id for the new attribute.
2020-06-15 Bob Duff <duff@adacore.com>
* exp_put_image.adb, libgnat/s-putima.adb, libgnat/s-putima.ads,
rtsfind.ads: Enable Put_Image if Is_Access_Subprogram_Type (Typ).
Remove comment saying it's disabled in that case. Rename
Put_Image_Access_Prot to be Put_Image_Access_Prot_Subp to
clarify that we're talking about access-to-subprogram, not
access-to-protected-object.
2020-06-15 Bob Duff <duff@adacore.com>
* sem_attr.adb (Check_Image_Type): New procedure for checking
the type, depending on language version. Disable the Ada 2020
support until the corresponding expander work is done.
(Analyze_Image_Attribute): Call Check_Image_Type. Rearrange the
code to be simplier and more logical. When P_Type is modified,
modify P_Base_Type accordingly.
* sem_util.adb (Is_Object_Image): Do not return False if the
prefix is a type. X'Image should be considered an image of an
object iff X is an object (albeit illegal pre-2020 if
nonscalar).
2020-06-15 Bob Duff <duff@adacore.com>
* libgnat/s-putima.ads, libgnat/s-putima.adb
(Put_Image_Access_Subp, Put_Image_Access_Prot): New procedures
for printing access-to-subprogram objects. Remove an explicit
" ", because Put_Image includes the annoying leading blank.
* rtsfind.ads: Add new procedures in s-putima.
* exp_put_image.adb: Call new procedures as appropriate.
2020-06-15 Bob Duff <duff@adacore.com>
* exp_imgv.adb (Expand_Image_Attribute): Allow private types.
Put_Image generates Image for numeric types, and private types
whose full type is numeric. This requires the Conversion_OK flag
for integer and floating-point types. For fixed point, we need
the extra conversion.
* exp_put_image.adb (Build_Elementary_Put_Image_Call): Remove
special handling of real types.
(Enable_Put_Image): Enable for reals.
2020-06-15 Bob Duff <duff@adacore.com>
* exp_attr.adb (Put_Image): Use underlying type for strings.
Remove unchecked union processing.
* exp_put_image.adb (Tagged_Put_Image_Enabled): Use -gnatd_z to
enable default Put_Image for tagged types. This allows testing
that feature.
(Build_String_Put_Image_Call): Set Conversion_OK flag.
(Make_Component_List_Attributes): Remove unchecked union
processing.
(Enable_Put_Image): Disable for unchecked unions. Enable for
nonscalar types (which were mistakenly disabled in earlier
changes).
* debug.adb: Document -gnatd_z switch.
* libgnat/s-putima.adb (Put_Image_String, Put_Image_Wide_String,
Put_Image_Wide_Wide_String): Double double-quote characters.
Forget about special handling of control characters for now --
that's rare enough to not be a priority, and it's not clear what
the right thing to do is anyway.
* namet.adb: Minor: Improve debugger-friendliness.
* sinfo.ads: Minor: Add "???" comment.
2020-06-15 Piotr Trojanek <trojanek@adacore.com>
* sem_util.ads, sem_util.adb (Is_Renaming_Declaration): Remove.
2020-06-15 Ed Schonberg <schonberg@adacore.com>
* freeze.adb (Freeze_Expression): When traversing the tree
looking for the proper insertion point for the freeze node of an
entity that is declared in an outer scope, set the candidate
subprogram body node properly. Previous code has an off-by-one
error.
2020-06-15 Eric Botcazou <ebotcazou@adacore.com>
* exp_attr.adb (Expand_N_Attribute_Reference) <Has_Same_Storage>:
Do not do superfluous work. Add the condition (X'Size /= 0) on
both paths and turn binary AND into short-circuit AND THEN.
2020-06-15 Steve Baird <baird@adacore.com>
* sem_attr.adb (Analyze_Attribute): In the Loop_Entry case,
replace a call to Statically_Denotes_Object with a call to
Statically_Names_Object and clean up the preceding comment.
2020-06-15 Eric Botcazou <ebotcazou@adacore.com>
* sem_res.adb (Resolve_Set_Membership): Remove local variable.
In the non-overloaded case, call Intersect_Types on the left
operand and the first alternative to get the resolution type.
But test the subtype of the left operand to give the warning.
2020-06-12 Steve Baird <baird@adacore.com>
* sem_res.adb (Valid_Conversion): The simpler cases of

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2020-06-16 Nicolas Bértolo <nicolasbertolo@gmail.com>
* Make-lang.in: Always define version, minor and release
numbers. Create the Windows shared library as
libgccjit-$(LIBGCCJIT_VERSION_NUM).dll.
2020-06-03 David Malcolm <dmalcolm@redhat.com>
PR jit/95306

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2020-06-15 Eric Botcazou <ebotcazou@gcc.gnu.org>
* gnat.dg/aggr30.ads, gnat.dg/aggr30.adb: New test.
2020-06-15 Eric Botcazou <ebotcazou@gcc.gnu.org>
* gnat.dg/opt85.ads, gnat.dg/opt85.adb: New test.
2020-06-15 Max Filippov <jcmvbkbc@gmail.com>
* gcc.target/xtensa/mabi-call0.c: New test.
* gcc.target/xtensa/mabi-windowed.c: New test.
2020-06-15 Martin Jambor <mjambor@suse.cz>
* lib/brig.exp (brig_target_compile): Strip hsail extension when
gnerating the name of the binary brig file.
2020-06-15 Hongtao Liu <hongtao.liu@intel.com>
* gcc.target/i386/avx512bw-pr95488-1.c: New test.
* gcc.target/i386/avx512bw-pr95488-2.c: Ditto.
* gcc.target/i386/avx512vl-pr95488-1.c: Ditto.
* gcc.target/i386/avx512vl-pr95488-2.c: Ditto.
2020-06-14 Harald Anlauf <anlauf@gmx.de>
PR fortran/95088

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libgcc/ChangeLog
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2020-06-15 Max Filippov <jcmvbkbc@gmail.com>
* configure: Regenerate.
* configure.ac: Use AC_COMPILE_IFELSE instead of manual
preprocessor invocation to check for __XTENSA_CALL0_ABI__.
2020-06-09 Martin Liska <mliska@suse.cz>
PR gcov-profile/95494

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2020-06-15 Jonathan Wakely <jwakely@redhat.com>
* include/bits/char_traits.h (__cpp_lib_constexpr_char_traits):
Update value for C++20.
* include/std/version (__cpp_lib_constexpr_char_traits): Likewise.
* testsuite/21_strings/char_traits/requirements/constexpr_functions_c++17.cc:
Update expected value.
* testsuite/21_strings/char_traits/requirements/constexpr_functions_c++20.cc:
Likewise.
2020-06-15 Paul Keir <paul.keir@uws.ac.uk>
* include/bits/char_traits.h (char_traits::move): constexpr move with
overlap was using copy_backward incorrectly.
* testsuite/21_strings/char_traits/requirements/constexpr_functions_c++20.cc:
New test.
2020-06-12 Jonathan Wakely <jwakely@redhat.com>
* testsuite/29_atomics/atomic_flag/clear/1.cc: Also test clear()