./ChangeLog:1998-11-26 Manfred Hollstein <manfred@s-direktnet.de>
* configure (skip-this-dir): Add handling for new shell script, which
might be created by a sub-directory's configure to indicate, this particular
directory is "unwanted".
* Makefile.in ($(CONFIGURE_TARGET_MODULES)): Likewise.
./gcc/ChangeLog:1998-11-26 Manfred Hollstein <manfred@s-direktnet.de>
* Makefile.in (CONFIG_LANGUAGES): New macro taking all languages
which can be configured.
(LANGUAGES): Use $(CONFIG_LANGUAGES) instead of @all_languages@
(Makefile): Pass actual LANGUAGES through the environment when
re-configuring.
(cstamp-h): Likewise.
(config.status): Likewise.
* configure.in (enable_languages): Add new configuration parameter
"--enable-languages=lang1,lang2,...".
(${srcdir}/*/config-lang.in): Change handling to configure only
those directories, that the user might have enabled; default to
"all" existing languages.
* configure: Regenerate.
./libchill/ChangeLog:1998-11-26 Manfred Hollstein <manfred@s-direktnet.de>
* configure.in (compiler_name): Add check to detect if this
language's compiler has been built.
* configure: Regenerate.
./libf2c/ChangeLog:1998-11-26 Manfred Hollstein <manfred@s-direktnet.de>
* configure.in (compiler_name): Add check to detect if this
language's compiler has been built.
* configure: Regenerate.
./libio/ChangeLog:1998-11-26 Manfred Hollstein <manfred@s-direktnet.de>
* configure.in (compiler_name): Add check to detect if this
language's compiler has been built.
./libobjc/ChangeLog:1998-11-26 Manfred Hollstein <manfred@s-direktnet.de>
* configure.in (compiler_name): Add check to detect if this
language's compiler has been built.
* configure: Regenerate.
./libstdc++/ChangeLog:1998-11-26 Manfred Hollstein <manfred@s-direktnet.de>
* configure.in (compiler_name): Add check to detect if this
language's compiler has been built.
From-SVN: r23892
* rtlanal.c (regs_set_between_p): New function.
* rtl.h (regs_set_between_p): Prototype it.
* jump.c (jump_optimize): Use it instead of modified_between_p
in the Sep 2 change.
From-SVN: r23888
* loop.h (precondition_loop_p): Added new mode argument.
* unroll.c (precondition_loop_p): Likewise.
(approx_final_value): Function deleted and subsumed
into loop_iterations.
(loop_find_equiv_value): New function.
(loop_iterations): Use loop_find_equiv_value to find increments
too large to be immediate constants. Also use it to find terms
common to initial and final iteration values that can be removed.
From-SVN: r23885
* loop.h (struct loop_info): Define new structure.
(precondition_loop_p): Added prototype.
(unroll_loop): Added new argument loop_info to prototype.
(final_biv_value, final_giv_value): Added new argument n_iterations
to prototype.
* loop.c (strength_reduce): Declare new structure loop_iteration_info
and new pointer loop_info.
(loop_n_iterations): Replace global variable by element in
loop_info structure.
(check_final_value): New argument n_iterations.
(insert_bct): New argument loop_info.
(loop_unroll_factor): Replace global array by element in
loop_info structure.
(loop_optimize): Remove code to allocate and initialise
loop_unroll_factor_array.
* unroll.c (precondition_loop_p): No longer static since
used by branch on count optimization.
(precondition_loop_p, unroll_loop): New argument loop_info.
(final_biv_value, final_giv_value, find_splittable_regs): New
argument n_iterations.
(loop_iteration_var, loop_initial_value, loop_increment,
loop_final_value, loop_comparison_code, loop_unroll_factor):
Replaced global variables by loop_info structure.
(loop_unroll_factor): Replace global array by element in
loop_info structure.
From-SVN: r23884
* loop.c (check_dbra_loop): Update JUMP_LABEL field of jump insn
when loop reversed.
* unroll.c (precondition_loop_p): Return loop_initial_value
for initial_value instead of loop_iteration_var.
From-SVN: r23881
* config/c4x/c4x.md: Fix minor formatting problems. Update docs.
(*b, *b_rev, *b_noov, *b_noov_rev, *db,
decrement_and_branch_until_zero, rptb_end): Use c4x_output_cbranch
to output the instruction sequences.
(rpts): Delete.
(rptb_top): Provide alternatives to use any register or memory
for loop counter.
(rptb_end): Emit use of operands rather than assigning them
explicitly to the RS and RE registers.
From-SVN: r23880
* config/c4x/c4x.c: (c4x_override_options): For compatibility
with old target options clear flag_branch_on_count_reg if
-mno-rptb specified and set flag_argument_alias is -mno-aliases
specified.
(c4x_output_cbranch): Handle a sequence of insns rather than a
single insn.
(c4x_rptb_insert): Do not emit a RPTB insn if the RC register
has not been allocated as the loop counter.
(c4x_address_conflict): Do not allow two volatile memory references.
(valid_parallel_operands_4, valid_parallel_operands_5,
valid_parallel_operands_6): Reject pattern if the register destination
of the first set is used as part of an address in the second set.
From-SVN: r23879
* regclass.c (init_reg_sets): Move code that calculates tables
dependent on reg_class_contents from here...
(init_reg_sets_1): To here.
From-SVN: r23858
Wed Nov 25 14:54:46 1998 Zack Weinberg <zack@rabi.phys.columbia.edu>
* cpplib.h: Delete struct import_file. Add ihash element to
struct cpp_buffer. Delete dont_repeat_files and
import_hash_table elements from cpp_reader; change
all_include_files to a hash table. Delete all foobar_include
/ last_foobar_include elements from struct cpp_options; put
back four such: quote_include, bracket_include,
system_include, after_include. Redo struct file_name_list
completely. Add new structure type include_hash. Add
prototypes for merge_include_chains and include_hash. Change
prototypes for finclude, find_include_file, and
append_include_chain to match changes below.
* cppfiles.c (simplify_pathname, include_hash,
remap_filename, merge_include_chains): New functions.
(add_import, lookup_import, open_include_file): Removed.
(INO_T_EQ): Define this (copied from cccp.c).
(hack_vms_include_specification): Remove all calls and #if 0
out the definition. It was being called incorrectly and at
the wrong times. Until a VMSie can look at this, it's better
to not pretend to support it.
(append_include_chain): Change calling convention; now takes
only one directory at a time, and sets up the data structure
itself.
(redundant_include_p): Rewritten - this is now used for all
include redundancy, whether by #ifndef, #import, or #pragma
once. Looks up things in the include hash table.
(file_cleanup): Decrement pfile->system_include_depth here if
it's >0.
(find_include_file): Calling convention changed; now passes
around a struct include_hash instead of 3 separate parameters.
Guts ripped out and replaced with new include_hash mechanism.
(finclude): Calling convention changed as for
find_include_file. Error exits pulled out-of-line. Reformat.
(safe_read): Return a long, not an int.
(deps_output): Don't recurse.
* cpplib.c (is_system_include): Deleted.
(path_include): Fix up call to append_include_chain.
(do_include): Fix up calls to find_include_file and finclude.
Clean up dependency output a bit. Shorten obnoxiously lengthy
#import warning message. Don't decrement
pfile->system_include_depth here.
(do_pragma): Understand the include_hash structure. Reformat.
(do_endif): Correct handling of control macros. Understand
the include_hash.
(cpp_start_read): Fix up calls to finclude. Call
merge_include_chains.
(cpp_handle_option): Fix up calls to append_include_chain.
Understand the four partial include chains.
(cpp_finish): Add debugging code (#if 0-ed out) for the
include_hash.
(cpp_cleanup): Free the include_hash, not the import hash and
the all_include and dont_repeat lists which no longer exist.
From-SVN: r23857
* except.c (expand_throw): Use TYPE_PTR_P to check for pointers.
* decl.c (check_tag_decl): Do complain about null friend decl at
file scope.
From-SVN: r23856
* toplev.c (no_new_pseudos): Define.
(rest_of_compilation): Set no_new_pseudos as needed.
* emit-rtl.c (gen_reg_rtx): Abort if we try to create a new pseudo
if no_new_pseudos is set.
* rtl.h (no_new_pseudos): Declare it.
* reload1.c (reload): Update comments.
* md.texi: Corresponding changes.
* reload1.c (reg_used_in_insn): Renamed from reg_used_by_pseudo.
(choose_reload_regs): Rename it here as well. When computing it,
also merge in used hardregs.
From-SVN: r23855
1998-11-25 Dave Love <d.love@dl.ac.uk>
* g77.f-torture/execute/u77-test.f (main): Avoid testing [f]statb
element, which fails on some systems.
* g77.f-torture/execute/labug1.f: New test.
From-SVN: r23854
