* doc/extend.texi: Remove limitation of Objective C for
__attribute__((constructor)) and __attribute__((destructor)).
* objc/execute/construct1.m: New test.
From-SVN: r240618
I'm going to hookize TARGET_FLT_EVAL_METHOD, so the current definition
of TARGET_FLT_EVAL_METHOD_NON_DEFAULT will stop working.
The relaxation enabled by TARGET_FLT_METHOD_NON_DEFAULT isn't portable,
and keeping it in place is tricky, so this patch removes it, and poisons
TARGET_FLT_EVAL_METHOD_NON_DEFAULT in system.h to prevent future use.
gcc/
* defaults.h (TARGET_FLT_EVAL_METHOD_NON_DEFAULT): Remove.
* system.h (TARGET_FLT_EVAL_METHOD_NON_DEFAULT): Poison.
gcc/c-family/
* c-opts.c (c_common_post_options): Remove special case for
TARGET_FLT_EVAL_METHOD_NON_DEFAULT with -fexcess-precision=standard
in C++.
gcc/java/
* lang.c (java_post_options): Remove special case for
TARGET_FLT_EVAL_METHOD_NON_DEFAULT with -fexcess-precision=standard.
gcc/fortran/
* options.c (gfc_post_options): Remove special case for
TARGET_FLT_EVAL_METHOD_NON_DEFAULT with -fexcess-precision=standard.
gcc/ada/
* gcc-interface/misc.c (gnat_post_options): Remove special case for
TARGET_FLT_EVAL_METHOD_NON_DEFAULT with -fexcess-precision=standard.
From-SVN: r240614
2016-09-29 Richard Biener <rguenther@suse.de>
PR tree-optimization/77768
* tree-ssa-sccvn.c (visit_reference_op_store): Properly deal
with stores to a place we know has a constant value.
From-SVN: r240610
Also copy over cputicks.go, env_posix.go, vdso_none.go, stubs2.go, and a
part of os_linux.go. Remove the corresponding functions from the C code
in libgo/go/runtime. Add some transitional support functions to
stubs.go. This converts several minor functions from C to Go.
Reviewed-on: https://go-review.googlesource.com/29962
From-SVN: r240609
compatibility-ldbl.o is compiled with -mlong-double-64. When
long double .gnu.attributes tags are checked by the linker, it
complains about the mismatch between this file and others in
libstdc++.
* configure.ac (LONG_DOUBLE_COMPAT_FLAGS): New ACSUBST.
* src/Makefile.am (compatibility-ldbl.o, compatibility-ldbl.lo):
Use LONG_DOUBLE_COMPAT_FLAGS.
* Makefile.in: Regenerate.
* configure: Regenerate.
* doc/Makefile.in: Regenerate.
* include/Makefile.in: Regenerate.
* libsupc++/Makefile.in: Regenerate.
* po/Makefile.in: Regenerate.
* python/Makefile.in: Regenerate.
* src/Makefile.in: Regenerate.
* src/c++11/Makefile.in: Regenerate.
* src/c++98/Makefile.in: Regenerate.
* src/filesystem/Makefile.in: Regenerate.
* testsuite/Makefile.in: Regenerate.
From-SVN: r240602
Extend this attribute to cover long double ABIs, for 64-bit too.
This patch also corrects an error that crept in to code setting
rs6000_passes_float. See the added comment. Passing IEEE128 values
in vsx regs ought to set both Tag_GNU_Power_ABI_FP and
Tag_GNU_Power_ABI_Vector. Also adds a new option, default on, that
disables output of .gnu_attribute assembly directives.
* config/rs6000/sysv4.opt (mgnu-attribute): New option.
* doc/invoke.texi: Document it.
* config/rs6000/rs6000.c (HAVE_LD_PPC_GNU_ATTR_LONG_DOUBLE): Define.
(rs6000_passes_float): Comment.
(rs6000_passes_long_double): New static var.
(call_ABI_of_interest): Return false unless rs6000_gnu_attr is set.
(init_cumulative_args): Set up to emit fp .gnu_attribute for
ELF 64-bit ABIs as well as 32-bit ELF. Correct rs6000_passes_float
to include fp values returned in vectors.
Set rs6000_passes_long_double.
(rs6000_function_arg_advance_1): Likewise for function args.
(rs6000_elf_file_end): Emit fp .gnu_attribute for ELF 64-bit ABIs,
and SPE. Emit long double tag value too.
(rs6000_opt_vars): Add gnu-attr.
* configure.ac (HAVE_LD_PPC_GNU_ATTR_LONG_DOUBLE): New ppc32 test.
* configure: Regenerate.
* config.in: Regenerate.
From-SVN: r240601
* gimple-ssa-sprintf.c: Fix comment formatting.
(format_integer): Use is_gimple_assign.
(pass_sprintf_length::handle_gimple_call): Use gimple_call_builtin_p
and gimple_call_fndecl. Reorder case BUILT_IN_SPRINTF_CHK. Fix up
BUILT_IN_SNPRINTF_CHK comment. Replace "to to" with "to" in comment.
(pass_sprintf_length::execute): Use is_gimple_call.
From-SVN: r240594
PR c++/77467
* constexpr.c (enum constexpr_switch_state): New.
(struct constexpr_ctx): Add css_state field.
(label_matches): Add CTX and STMT arguments, remove I and
DEFAULT_LABEL. For CASE_LABEL_EXPR assert ctx->css_state != NULL,
handle default labels according to css_state.
(cxx_eval_statement_list): Remove statement skipping, label_matches
and default_label handling code.
(cxx_eval_loop_expr): Exit after first iteration even if
switches (jump_target).
(cxx_eval_switch_expr): Set up css_state field in ctx, if default
label has been seen in the body, but no cases matched, evaluate
the body second time.
(cxx_eval_constant_expression): Handle stmt skipping and label_matches
here. Handle PREDICT_EXPR. For MODIFY_EXPR or INIT_EXPR, assert
statement is not skipped. For COND_EXPR during skipping, don't
evaluate condition, just the then block and if still skipping at the
end also the else block.
(cxx_eval_outermost_constant_expr): Adjust constexpr_ctx initializer.
(is_sub_constant_expr): Likewise.
* g++.dg/cpp1y/constexpr-77467.C: New test.
From-SVN: r240591
Tweak the makefile rules for the runtime/check test to
insure that the runtime package is compiled with
"-fgo-compiling-runtime". This resolves a test failure
(unsat on runtime.getcallerpc) when in a build directory where the
compiler flags have been configured to disable optimization.
Reviewed-on: https://go-review.googlesource.com/30010
From-SVN: r240588
If strchr can't be folded in gimple-fold, we still need to fall into
the generic code so the folding code in builtins.c is also called.
gcc/
* gimple-fold.c (gimple_fold_builtin): After failing to fold
strchr, also try the generic folding.
From-SVN: r240585
gcc/testsuite/ChangeLog:
PR middle-end/77683
* gcc.dg/tree-ssa/builtin-sprintf-warn-1.c: Add test cases.
gcc/ChangeLog:
PR middle-end/77683
* gimple-ssa-sprintf.c (format_integer): Fail gracefully when
length modifier is not expected.
(format_floating): Ignore l length modifier and fail gracefuly
when it isn't one of the other expected ones.
From-SVN: r240583
2016-09-27 Richard Biener <rguenther@suse.de>
* dwarf2out.c (cu_die_list): New global.
(dwarf2out_finish): Walk cu_die_list instead of limbo DIEs. Add
main_comp_unit_die to cu_die_list if we created it.
Move break_out_includes ...
(dwarf2out_early_finish): ... here. Push created CU DIEs onto
the cu_die_list.
From-SVN: r240579
2016-09-28 Richard Biener <rguenther@suse.de>
* dwarf2out.c (struct die_struct): Add removed flag.
(lookup_type_die): If the DIE is marked as removed, clear
TYPE_SYMTAB_DIE and return NULL.
(lookup_decl_die): If the DIE is marked as removed, remove it
from the hash and return NULL.
(mark_removed): New helper.
(prune_unused_types_prune): Call it for removed DIEs.
(gen_subprogram_die): Move the premark_used_types call to after
DIEs for the functions scopes are generated.
(process_scope_var): Do not re-create pruned types or type decls.
Make sure to also re-parent type decls.
(dwarf2out_finish): Move unused type pruning and debug_types
handling ...
(dwarf2out_early_finish): ... here.
From-SVN: r240578
Optimize strchr (s, 0) to s + strlen (s). strchr (s, 0) appears a common
idiom for finding the end of a string, however it is not a very efficient
way of doing so. Strlen is a much simpler operation which is significantly
faster (eg. on x86 strlen is 50% faster for strings of 8 bytes and about
twice as fast as strchr on strings of 1KB).
gcc/
* gimple-fold.c (gimple_fold_builtin_strchr):
New function to optimize strchr (s, 0) to strlen.
(gimple_fold_builtin): Add BUILT_IN_STRCHR case.
testsuite/
* gcc.dg/strlenopt-20.c: Update test.
* gcc.dg/strlenopt-21.c: Likewise.
* gcc.dg/strlenopt-22.c: Likewise.
* gcc.dg/strlenopt-22g.c: Likewise.
* gcc.dg/strlenopt-26.c: Likewise.
* gcc.dg/strlenopt-5.c: Likewise.
* gcc.dg/strlenopt-7.c: Likewise.
* gcc.dg/strlenopt-9.c: Likewise.
From-SVN: r240568
This is a step toward a version of mksysinfo that generates information
for the runtime package. This will be used to generate the
runtime_sysinfo.go file, which is currently directly generated by a
Makefile target.
Reviewed-on: https://go-review.googlesource.com/29683
From-SVN: r240560
During the compiler's order_evaluations() pass, duplicate
call statements were being created and inserted into block
statement lists in situations where there were calls returning
multiple arguments. These duplicates were benign in that they
were ignored during backend code generation, however they
did cause duplicate calls in AST dumps. Tweak the order
evaluation code to handle this case better and avoid inserting
these duplicates.
Fixesgolang/go#17237
Reviewed-on: https://go-review.googlesource.com/29857
From-SVN: r240559
When emitting AST dumps, tag the end of selected statements with with
source file and line number information where available. Example:
tmp.76832448 = 0 // p.go:6
Requires a corresponding change in gcc/go as well as this change to
gofrontend.
Reviewed-on: https://go-review.googlesource.com/29856
* go-linemap.cc (Gcc_linemap::to_string): New method.
From-SVN: r240558
Implement P0018R3, C++17 lambda capture of *this by value as [=,*this]
* parser.c (cp_parser_lambda_introducer): Formatting fix. Pass
true instead of false as by_reference_p to add_capture for 'this'.
Parse '*this' simple-capture.
* lambda.c (build_capture_proxy): Handle '*this' capture by value.
(add_capture): Adjust function comment. For id == this_identifier,
treat by_reference_p as capturing '*this' by reference, i.e. 'this'
by value, and !by_reference_p as capturing '*this' by value.
(add_default_capture): For implicit 'this' capture, always pass
by_reference_p true rather than false.
* g++.dg/cpp1z/lambda-this1.C: New test.
* g++.dg/cpp1z/lambda-this2.C: New test.
From-SVN: r240556
