Gerald Pfeifer [Sat, 27 Aug 2016 18:15:59 +0000 (18:15 +0000)]
extend.texi (SPU Built-in Functions): Remove stale references to material formerly at IBM and Sony.
* doc/extend.texi (SPU Built-in Functions): Remove stale
references to material formerly at IBM and Sony.
From-SVN: r239797
Steven G. Kargl [Sat, 27 Aug 2016 15:45:35 +0000 (15:45 +0000)]
re PR fortran/77380 (ICE in gfc_check_dependency, at fortran/dependency.c:1255)
2016-08-27 Steven G. Kargl <kargl@gcc.gnu.org>
PR fortran/77380
* dependency.c (gfc_check_dependency): Do not assert with
-fcoarray=lib.
2016-08-27 Steven G. Kargl <kargl@gcc.gnu.org>
PR fortran/77380
* gfortran.dg/pr77380.f90: New test.
From-SVN: r239796
Steven G. Kargl [Sat, 27 Aug 2016 15:38:55 +0000 (15:38 +0000)]
re PR fortran/77372 (ICE in simplify_ieee_selected_real_kind, at fortran/simplify.c:7049)
2016-08-27 Steven G. Kargl <kargl@gcc.gnu.org>
PR fortran/77372
simplify.c (simplify_ieee_selected_real_kind): Check for NULL pointers.
2016-08-27 Steven G. Kargl <kargl@gcc.gnu.org>
PR fortran/77372
gfortran.dg/pr77372.f90: New test.
From-SVN: r239795
Tim Shen [Sat, 27 Aug 2016 02:03:23 +0000 (02:03 +0000)]
re PR libstdc++/77356 (regex error for a ECMAScript syntax string)
PR libstdc++/77356
* include/bits/regex_compiler.tcc(_M_insert_bracket_matcher,
_M_expression_term): Modify to support dash literal.
* include/bits/regex_scanner.h: Add dash as a token type to make
a different from the mandated dash literal by escaping.
* include/bits/regex_scanner.tcc(_M_scan_in_bracket): Emit dash
token in bracket expression parsing.
* testsuite/28_regex/regression.cc: Add new testcases.
From-SVN: r239794
GCC Administrator [Sat, 27 Aug 2016 00:16:16 +0000 (00:16 +0000)]
Daily bump.
From-SVN: r239793
David Edelsohn [Fri, 26 Aug 2016 23:51:27 +0000 (23:51 +0000)]
re PR target/77349 (AIX DWARF debugging offset in 64 bit mode)
PR target/77349
* config/rs6000/xcoff.h (DWARF_OFFSET_SIZE): Define as PTR_SIZE.
From-SVN: r239790
David Malcolm [Fri, 26 Aug 2016 21:25:41 +0000 (21:25 +0000)]
Add validation and consolidation of fix-it hints
The first aspect of this patch is to add some checking of fix-it hints.
The idea is to put this checking within the rich_location machinery,
rather than requiring every diagnostic to implement it for itself.
The fixits within a rich_location are "atomic": all must be valid for
any to be applicable.
We reject any fixits involving locations above
LINE_MAP_MAX_LOCATION_WITH_COLS.
There's no guarantee that it's sane to modify a macro, so we reject
any fix-its that touch them.
For example, note the attempt to provide a fix-it for the definition
of the macro FIELD:
spellcheck-fields-2.c: In function ‘test_macro’:
spellcheck-fields-2.c:26:15: error: ‘union u’ has no member named ‘colour’; did you mean ‘color’?
#define FIELD colour
^
color
spellcheck-fields-2.c:27:15: note: in expansion of macro ‘FIELD’
return ptr->FIELD;
^~~~~
After this patch, the fixit is not displayed:
spellcheck-fields-2.c: In function ‘test_macro’:
spellcheck-fields-2.c:26:15: error: ‘union u’ has no member named ‘colour’; did you mean ‘color’?
#define FIELD colour
^
spellcheck-fields-2.c:27:15: note: in expansion of macro ‘FIELD’
return ptr->FIELD;
^~~~~
We might want some way for a diagnostic to opt-in to fix-its that
affect macros, but for now it's simplest to reject them.
The other aspect of this patch is fix-it consolidation: in some cases
neighboring fix-its can be merged. For example, in a diagnostic to
modernize old-style struct initializers from:
struct s example = {
- foo: 1,
+ .foo = 1,
};
one approach would be to replace the "foo" with ".foo" and the ":"
with " =". This would give two "replace" fix-its:
foo: 1,
--- FIXIT 1
.foo
- FIXIT 2
=
This patch allows them to be consolidated into a single "replace" fix-it:
foo: 1,
----
.foo =
gcc/ChangeLog:
* diagnostic-show-locus.c
(selftest::test_fixit_consolidation): New function.
(selftest::diagnostic_show_locus_c_tests): Call it.
* gcc-rich-location.h (gcc_rich_location): Eliminate unused
constructor based on source_range.
gcc/testsuite/ChangeLog:
* gcc.dg/spellcheck-fields-2.c (test): Move
dg-begin/end-multiline-output within function body.
(test_macro): New function.
libcpp/ChangeLog:
* include/line-map.h (rich_location): Eliminate unimplemented
constructor based on source_range.
(rich_location::get_last_fixit_hint): New method.
(rich_location::reject_impossible_fixit): New method.
(rich_location): Add fields m_line_table and
m_seen_impossible_fixit.
(fixit_hint::maybe_append_replace): New pure virtual function.
(fixit_insert::maybe_append_replace): New function.
(fixit_replace::maybe_append_replace): New function.
* line-map.c (rich_location::rich_location): Initialize
m_line_table and m_seen_impossible_fixit.
(rich_location::add_fixit_insert): Call
reject_impossible_fixit and bail out if true.
(column_before_p): New function.
(rich_location::add_fixit_replace): Call reject_impossible_fixit
and bail out if true. Attempt to consolidate with neighboring
fixits.
(rich_location::get_last_fixit_hint): New method.
(rich_location::reject_impossible_fixit): New method.
(fixit_insert::maybe_append_replace): New method.
(fixit_replace::maybe_append_replace): New method.
From-SVN: r239789
David Malcolm [Fri, 26 Aug 2016 17:59:08 +0000 (17:59 +0000)]
Tweak to colors of fix-it hints
Previous, fix-it hints were printed using the color of the severity
of the diagnostic (magenta for warnings, red for errors, cyan for
notes).
This patch updates fix-it hints so that replacement text is printed in
green, to better distinguish the suggested improvement from
the current code. For example:
spellcheck-fields.cc:52:13: error: 'struct s' has no member named 'colour'; did you mean 'color'?
return ptr->colour; <<< RED
^~~~~~ <<< RED
color <<< GREEN
It makes sense for the underlinings that indicate deletions to
be printed in red, so the patch changes that also. For example:
diagnostic-test-show-locus-color.c:179:9: warning: example of a removal hint
int a;; <<< MAGENTA
^ <<< MAGENTA
- <<< RED
gcc/ChangeLog:
* diagnostic-color.c (color_dict): Add "fixit-insert" and
"fixit-delete".
(parse_gcc_colors): Update description of default GCC_COLORS.
* diagnostic-show-locus.c (colorizer::set_fixit_hint): Delete.
(colorizer::set_fixit_insert): New method.
(colorizer::set_fixit_delete): New method.
(colorizer::get_color_by_name): New method.
(colorizer::STATE_FIXIT_INSERT): New constant.
(colorizer::STATE_FIXIT_DELETE): New constant.
(class colorizer): Drop "_cs" suffix from fields. Delete "_ce"
fields in favor of new field "m_stop_color". Add fields
"m_fixit_insert" and "m_fixit_delete".
(colorizer::colorizer): Update for above changes. Replace
colorize_start calls with calls to get_color_by_name.
(colorizer::begin_state): Handle STATE_FIXIT_INSERT and
STATE_FIXIT_DELETE. Update for field renamings.
(colorizer::finish_state): Simplify by using m_stop_color,
rather than multiple identical "*_ce" fields.
(colorizer::get_color_by_name): New method.
(layout::print_any_fixits): Print insertions and replacements
using the "fixit-insert" color, and deletions using the
"fixit-delete" color.
* doc/invoke.texi (-fdiagnostics-color): Update description of
default GCC_COLORS, and of the supported capabilities.
gcc/testsuite/ChangeLog:
* gcc.dg/plugin/diagnostic-test-show-locus-color.c
(test_fixit_insert): Update expected output.
(test_fixit_remove): Likewise.
(test_fixit_replace): Likewise.
From-SVN: r239787
Rainer Orth [Fri, 26 Aug 2016 17:32:05 +0000 (17:32 +0000)]
Fix gcc.dg/ipa/propbits-2.c
* gcc.dg/ipa/propbits-2.c: Add -fdump-tree-optimized to dg-options.
Fix typo.
From-SVN: r239786
Max Filippov [Fri, 26 Aug 2016 17:23:37 +0000 (17:23 +0000)]
xtensa: report stack usage
This enables options -fstack-usage and -Wstack-usage.
2016-08-26 Max Filippov <jcmvbkbc@gmail.com>
gcc/
* config/xtensa/xtensa.c (xtensa_expand_prologue): Update
current_function_static_stack_size variable with the static
stack frame size of the current function when
flag_stack_usage_info is enabled.
From-SVN: r239785
Jason Merrill [Fri, 26 Aug 2016 15:10:57 +0000 (11:10 -0400)]
Avoid calling a trivial default constructor.
* class.c (default_ctor_p): New.
(in_class_defaulted_default_constructor): Use it.
(type_has_non_user_provided_default_constructor): Use it.
* call.c (build_over_call): Handle trivial default constructor.
* cp-tree.h: Declare default_ctor_p.
From-SVN: r239783
Jason Merrill [Fri, 26 Aug 2016 15:10:51 +0000 (11:10 -0400)]
PR c++/57728 - explicit instantiation and defaulted functions
* pt.c (do_type_instantiation): Don't mess with non-user-provided
member functions.
From-SVN: r239782
Jonathan Wakely [Fri, 26 Aug 2016 13:11:29 +0000 (14:11 +0100)]
libstdc++/51960 move-construction for raw_storage_iterator
PR libstdc++/51960
* doc/xml/manual/intro.xml: Document DR 2127 change.
* doc/html/*: Regenerate.
* include/bits/stl_raw_storage_iter.h (operator=(_Tp&&)): Add.
(operator++(), operator++(int)): Use injected class name.
* testsuite/20_util/raw_storage_iterator/dr2127.cc: New test.
From-SVN: r239781
Nathan Sidwell [Fri, 26 Aug 2016 13:03:32 +0000 (13:03 +0000)]
ipa-inline-analysis.c (inline_write_summary): Remove unnecessary assignment inside if condition.
* ipa-inline-analysis.c (inline_write_summary): Remove unnecessary
assignment inside if condition.
From-SVN: r239779
Richard Biener [Fri, 26 Aug 2016 12:33:43 +0000 (12:33 +0000)]
re PR tree-optimization/69047 (memcpy is not as optimized as union is)
2016-08-26 Richard Biener <rguenther@suse.de>
PR tree-optimization/69047
* tree-ssa.c (maybe_rewrite_mem_ref_base): Handle general bitfield
extracts similar to what FRE does.
(non_rewritable_mem_ref_base): Likewise.
* gcc.dg/pr69047.c: New testcase.
From-SVN: r239778
Jonathan Wakely [Fri, 26 Aug 2016 11:41:37 +0000 (12:41 +0100)]
Use effective-target instead of -std options
* testsuite/*: Use { target c++11 } or { target c++14 } instead of
using -std in dg-options.
From-SVN: r239777
Jonathan Wakely [Fri, 26 Aug 2016 11:35:58 +0000 (12:35 +0100)]
Restore dg-interpreter-batch-mode for libstdc++ tests
2016-08-26 Jonathan Wakely <jwakely@redhat.com>
Pedro Alves <palves@redhat.com>
* testsuite/lib/gdb-test.exp (gdb-dg-runtest): Define wrapper to save
and restore dg-interpreter-batch-mode.
* testsuite/libstdc++-prettyprinters/prettyprinters.exp: Use
gdb-dg-runtest instead of dg-runtest.
* testsuite/libstdc++-xmethods/xmethods.exp: Likewise.
Co-Authored-By: Pedro Alves <palves@redhat.com>
From-SVN: r239776
Joseph Myers [Fri, 26 Aug 2016 11:13:42 +0000 (12:13 +0100)]
Always support float128 on x86.
In <https://gcc.gnu.org/ml/gcc-bugs/2016-08/msg03233.html>, Nick
reported i386-elf and ia64-elf failing to build because of
float128_type_node being NULL, but being used by the back end for
__float128.
The global float128_type_node is only available conditionally, if
target hooks indicate TFmode is not only available as a scalar mode
and of the right format, but also supported in libgcc. The back-end
support, however, expects the type always to be available for
__float128 even if the libgcc support is missing.
Although a target-specific node could be restored in the case where
libgcc support is missing, it seems better to address the missing
libgcc support. Thus, this patch enables TFmode soft-fp in libgcc
globally for all x86 targets - the only special cases needed being for
targets that use soft-fp for SFmode and DFmode, one of which already
had the support for TFmode as well (so I based the i[34567]86-*-rtems*
configuration on that present for i[34567]86-*-elfiamcu). The i386
implementation of TARGET_LIBGCC_FLOATING_MODE_SUPPORTED_P is then
removed as no longer needed.
I can provide such a patch for ia64 if useful, but am not in a
position to test it (and while I'm reasonably confident that enabling
this support would be right for ia64-elf and ia64-freebsd, I've no
real idea if enabling libgcc support for TFmode, with or without also
enabling it for XFmode, would be safe for ia64-vms).
Bootstrapped with no regressions on x86_64-pc-linux-gnu.
gcc:
* config/i386/i386.c (ix86_libgcc_floating_mode_supported_p)
(TARGET_LIBGCC_FLOATING_MODE_SUPPORTED_P): Remove.
* config/i386/i386elf.h (IX86_MAYBE_NO_LIBGCC_TFMODE): Likewise.
* config/i386/lynx.h (IX86_MAYBE_NO_LIBGCC_TFMODE): Likewise.
* config/i386/netbsd-elf.h (IX86_MAYBE_NO_LIBGCC_TFMODE):
Likewise.
* config/i386/netbsd64.h (IX86_MAYBE_NO_LIBGCC_TFMODE): Likewise.
* config/i386/nto.h (IX86_MAYBE_NO_LIBGCC_TFMODE): Likewise.
* config/i386/openbsd.h (IX86_MAYBE_NO_LIBGCC_TFMODE): Likewise.
* config/i386/rtemself.h (IX86_NO_LIBGCC_TFMODE): Likewise.
* config/i386/vxworks.h (IX86_MAYBE_NO_LIBGCC_TFMODE): Likewise.
libgcc:
* config.host (i[34567]86-*-* | x86_64-*-*): Enable TFmode soft-fp
where not already enabled.
From-SVN: r239775
Richard Biener [Fri, 26 Aug 2016 10:59:50 +0000 (10:59 +0000)]
mangle.c (java_mangle_decl): Re-sync with lhd_set_decl_assembler_name.
2016-08-26 Richard Biener <rguenther@suse.de>
java/
* mangle.c (java_mangle_decl): Re-sync with lhd_set_decl_assembler_name.
From-SVN: r239774
Jonathan Wakely [Fri, 26 Aug 2016 10:41:37 +0000 (11:41 +0100)]
Add new std::basic_string constructor (LWG 2583)
* config/abi/pre/gnu.ver (GLIBCXX_3.4, GLIBCXX_3.4.21): Use more
precise patterns for basic_string constructors.
(GLIBCXX_3.4.23): Export new constructors.
* doc/xml/manual/intro.xml: Document LWG 2583 status.
* doc/html/*: Regenerate.
* include/bits/basic_string.h [_GLIBCXX_USE_CXX11_ABI]
(basic_string(const basic_string&, size_type, const Alloc&)): Add
new constructor for LWG 2583.
(basic_string(const basic_string&, size_type, size_type)): Remove
default argument.
[!_GLIBCXX_USE_CXX11_ABI]: Likewise.
* include/bits/basic_string.tcc [!_GLIBCXX_USE_CXX11_ABI]: Define it.
* testsuite/21_strings/basic_string/cons/char/8.cc: New test.
* testsuite/21_strings/basic_string/cons/wchar_t/8.cc: New test.
From-SVN: r239773
Kyrylo Tkachov [Fri, 26 Aug 2016 10:23:20 +0000 (10:23 +0000)]
[ARM] PR target/70473: Reduce size of Cortex-A8 automaton
PR target/70473
* config/arm/cortex-a8-neon.md (cortex_a8_vfp_muld): Reduce
reservation duration to 15 cycles.
(cortex_a8_vfp_macs): Likewise.
(cortex_a8_vfp_macd): Likewise.
(cortex_a8_vfp_divs): Likewise.
(cortex_a8_vfp_divd): Likewise.
From-SVN: r239772
Kyrylo Tkachov [Fri, 26 Aug 2016 10:22:08 +0000 (10:22 +0000)]
[ARM] Refactor MOVW/MOVT fusion logic to allow extension
* config/arm/arm.c (arm_sets_movw_movt_fusible_p): New function.
(aarch_macro_fusion_pair_p): Use above to avoid early return.
From-SVN: r239771
Prathamesh Kulkarni [Fri, 26 Aug 2016 08:05:39 +0000 (08:05 +0000)]
Patch for performing interprocedural bitwise constant propagation.
2016-08-26 Prathamesh Kulkarni <prathamesh.kulkarni@linaro.org>
Martin Jambhor <mjambor@suse.cz>
* common.opt: New option -fipa-bit-cp.
* doc/invoke.texi: Document -fipa-bit-cp.
* opts.c (default_options_table): Add entry for -fipa-bit-cp.
(enable_fdo_optimizations): Check for flag_ipa_bit_cp.
* tree-ssa-ccp.h: New header file.
* tree-ssa-ccp.c: Include tree-ssa-ccp.h
(bit_value_binop_1): Change to bit_value_binop_1 and export it.
Replace all occurences of tree parameter by two new params: signop, int.
(bit_value_unop_1): Change to bit_value_unop and export it.
Replace all occurences of tree parameter by two new params: signop,
int.
(bit_value_binop): Change call from bit_value_binop_1 to
bit_value_binop.
(bit_value_assume_aligned): Likewise.
(bit_value_unop): Change call from bit_value_unop_1 to bit_value_unop.
(do_ssa_ccp): Pass nonzero_p || flag_ipa_cp_bit instead of nonzero_p
to ccp_finalize.
(ccp_finalize): Skip processing if val->mask == 0.
* ipa-cp.c: Include tree-ssa-ccp.h
(ipcp_bits_lattice): New class.
(ipcp_param_lattice (bits_lattice): New member.
(print_all_lattices): Call ipcp_bits_lattice::print.
(set_all_contains_variable): Call ipcp_bits_lattice::set_to_bottom.
(initialize_node_lattices): Likewise.
(propagate_bits_accross_jump_function): New function.
(propagate_constants_accross_call): Call
propagate_bits_accross_jump_function.
(ipcp_propagate_stage): Store parameter types when in_lto_p is true.
(ipcp_store_bits_results): New function.
(ipcp_driver): Call ipcp_store_bits_results.
* ipa-prop.h (ipa_bits): New struct.
(ipa_jump_func): Add new member bits of type ipa_bits.
(ipa_param_descriptor): Change decl to decl_or_type.
(ipa_get_param): Change decl to decl_or_type and assert on
PARM_DECL.
(ipa_get_type): New function.
(ipcp_transformation_summary): New member bits.
* ipa-prop.c (ipa_get_param_decl_index_1): s/decl/decl_or_type.
(ipa_populate_param_decls): Likewise.
(ipa_dump_param): Likewise.
(ipa_print_node_jump_functions_for_edge): Pretty-print ipa_bits jump
function.
(ipa_set_jf_unknown): Set ipa_bits::known to false.
(ipa_compute_jump_functions_for_edge): Compute jump function for bits
propagation.
(ipa_node_params_t::duplicate): Copy src->bits into dst->bits.
(ipa_write_jump_function): Add streaming for ipa_bits.
(ipa_read_jump_function): Add support for reading streamed ipa_bits.
(write_ipcp_transformation_info): Add streaming for ipa_bits
summary for ltrans.
(read_ipcp_transfomration_info): Add support for reading streamed ipa_bits.
(ipcp_update_bits): New function.
(ipcp_transform_function): Call ipcp_update_bits.
testsuite/
* gcc.dg/ipa/propbits-1.c: New test-case.
* gcc.dg/ipa/propbits-2.c: Likewise.
* gcc.dg/ipa/propbits-3.c: Likewise.
Co-Authored-By: Martin Jambor <mjambor@suse.cz>
From-SVN: r239769
Joseph Myers [Fri, 26 Aug 2016 01:05:13 +0000 (02:05 +0100)]
Update .po files.
* be.po, da.po, de.po, el.po, es.po, fi.po, fr.po, hr.po, id.po,
ja.po, nl.po, ru.po, sr.po, sv.po, tr.po, uk.po, vi.po, zh_CN.po,
zh_TW.po: Update.
From-SVN: r239767
GCC Administrator [Fri, 26 Aug 2016 00:16:17 +0000 (00:16 +0000)]
Daily bump.
From-SVN: r239766
Steven G. Kargl [Thu, 25 Aug 2016 19:35:46 +0000 (19:35 +0000)]
re PR fortran/77351 (ICE in remove_trim, at frontend-passes.c:1145)
2016-08-25 Steven g. Kargl <kargl@gcc.gnu.org>
PR fortran/77351
* frontend-passes.c (remove_trim,combine_array_constructor): Check for
NULL pointer.
2016-08-25 Steven g. Kargl <kargl@gcc.gnu.org>
PR fortran/77351
* gfortran.dg/pr77351.f90: New test.
From-SVN: r239763
Szabolcs Nagy [Thu, 25 Aug 2016 14:13:02 +0000 (14:13 +0000)]
[mips] Add support for mips*r6-*-musl
gcc/
* config/mips/linux.h (MUSL_DYNAMIC_LINKER32): Update.
(MUSL_DYNAMIC_LINKER64, MUSL_DYNAMIC_LINKERN32): Update.
From-SVN: r239760
Szabolcs Nagy [Thu, 25 Aug 2016 14:08:27 +0000 (14:08 +0000)]
[mips] Fix linux header use in libgcc
libgcc/
* config/mips/linux-unwind.h: Use sys/syscall.h.
From-SVN: r239759
Marek Polacek [Thu, 25 Aug 2016 12:48:34 +0000 (12:48 +0000)]
c-common.c (warn_logical_not_parentheses): Print fixit hints.
* c-common.c (warn_logical_not_parentheses): Print fixit hints.
* c-common.h (warn_logical_not_parentheses): Update declaration.
* c-typeck.c (parser_build_binary_op): Pass LHS to
warn_logical_not_parentheses.
* parser.c (cp_parser_binary_expression): Pass LHS to
warn_logical_not_parentheses.
* c-c++-common/Wlogical-not-parentheses-2.c: New test.
Co-Authored-By: David Malcolm <dmalcolm@redhat.com>
From-SVN: r239756
David Edelsohn [Thu, 25 Aug 2016 12:07:10 +0000 (12:07 +0000)]
* multiple_target.c (pass_data_dispatcher_calls): Fix typo.
From-SVN: r239755
Richard Biener [Thu, 25 Aug 2016 09:25:31 +0000 (09:25 +0000)]
dwarf2out.c (gen_remaining_tmpl_value_param_die_attributes): Only add locations in late dwarf.
2016-08-25 Richard Biener <rguenther@suse.de>
* dwarf2out.c (gen_remaining_tmpl_value_param_die_attributes):
Only add locations in late dwarf.
(gen_scheduled_generic_parms_dies): Do not set early dwarf here.
(dwarf2out_early_finish): But do it here.
From-SVN: r239753
Marek Polacek [Thu, 25 Aug 2016 08:22:56 +0000 (08:22 +0000)]
re PR c/77323 (Bad "defaults to 'int'" warning for unsupported types)
PR c/77323
* c-decl.c (declspecs_add_type): Set typespec_word even when __intN
or _FloatN or _FloatNx is not supported.
(finish_declspecs): Set type to integer_type_node when _FloatN or
_FloatNx is not supported.
* gcc.dg/pr77323.c: New test.
From-SVN: r239752
GCC Administrator [Thu, 25 Aug 2016 00:16:17 +0000 (00:16 +0000)]
Daily bump.
From-SVN: r239751
Paul Thomas [Wed, 24 Aug 2016 19:33:14 +0000 (19:33 +0000)]
re PR fortran/77358 ([F08] deferred-length character function returns zero-length string)
2016-08-24 Paul Thomas <pault@gcc.gnu.org>
PR fortran/77358
* resolve.c (resolve_fl_procedure): Use the correct gfc_charlen
for deferred character length module procedures.
2016-08-24 Paul Thomas <pault@gcc.gnu.org>
PR fortran/77358
* gfortran.dg/submodule_17.f08: New test.
From-SVN: r239740
Michael Collison [Wed, 24 Aug 2016 19:31:20 +0000 (19:31 +0000)]
arm-modes.def: Add new condition code mode CC_V to represent the overflow bit.
2016-08-24 Michael Collison <michael.collison@linaro.org>
Michael Collison <michael.collison@arm.com>
* config/arm/arm-modes.def: Add new condition code mode CC_V
to represent the overflow bit.
* config/arm/arm.c (maybe_get_arm_condition_code):
Add support for CC_Vmode.
(arm_gen_unlikely_cbranch): New function to generate common
rtl conditional branches for overflow patterns.
* config/arm/arm-protos.h: Add prototype for
arm_gen_unlikely_cbranch.
* config/arm/arm.md (addv<mode>4, add<mode>3_compareV,
addsi3_compareV_upper): New patterns to support signed
builtin overflow add operations.
(uaddv<mode>4, add<mode>3_compareC, addsi3_compareV_upper):
New patterns to support unsigned builtin add overflow operations.
(subv<mode>4, sub<mode>3_compare1): New patterns to support signed
builtin overflow subtract operations,
(usubv<mode>4): New patterns to support unsigned builtin subtract
overflow operations.
(negvsi3, negvdi3, negdi2_compare, negsi2_carryin_compare): New patterns
to support builtin overflow negate operations.
* gcc.target/arm/builtin_saddl.c: New testcase.
* gcc.target/arm/builtin_saddll.c: New testcase.
* gcc.target/arm/builtin_uaddl.c: New testcase.
* gcc.target/arm/builtin_uaddll.c: New testcase.
* gcc.target/arm/builtin_ssubl.c: New testcase.
* gcc.target/arm/builtin_ssubll.c: New testcase.
* gcc.target/arm/builtin_usubl.c: New testcase.
* gcc.target/arm/builtin_usubll.c: New testcase.
Co-Authored-By: Michael Collison <michael.collison@arm.com>
From-SVN: r239739
Uros Bizjak [Wed, 24 Aug 2016 14:59:43 +0000 (16:59 +0200)]
re PR target/77270 (Flag -mprftchw is shared with 3dnow for -march=k8)
PR target/77270
* gcc.dg/tree-ssa/loop-28.c: Also compile on 32bit x86 targets.
(dg-options): Use -march=amdfam10 instead of -march=athlon.
* gcc.dg/tree-ssa/update-unroll-1.c: Ditto.
* gcc.dg/tree-ssa/prefetch-3.c: Ditto.
* gcc.dg/tree-ssa/prefetch-4.c: Ditto.
* gcc.dg/tree-ssa/prefetch-5.c: Ditto.
* gcc.dg/tree-ssa/prefetch-6.c: Ditto. Do not require sse2
effective target. Remove scan-assembler-times directives.
* gcc.dg/tree-ssa/prefetch-7.c: Ditto.
* gcc.dg/tree-ssa/prefetch-8.c: Ditto.
* gcc.dg/tree-ssa/prefetch-9.c: Ditto.
From-SVN: r239737
Andreas Krebbel [Wed, 24 Aug 2016 10:56:37 +0000 (10:56 +0000)]
Revert "Drop excess size used for run time allocated stack variables."
This patch caused a bootstrap failure on AIX.
2016-08-24 Andreas Krebbel <krebbel@linux.vnet.ibm.com>
Revert
2016-08-23 Dominik Vogt <vogt@linux.vnet.ibm.com>
* explow.c (get_dynamic_stack_size): Take known alignment of stack
pointer + STACK_DYNAMIC_OFFSET into account when calculating the
size needed.
From-SVN: r239735
Thomas Preud'homme [Wed, 24 Aug 2016 09:51:35 +0000 (09:51 +0000)]
fragments.texi (MULTILIB_REUSE): Mention that only options in MULTILIB_OPTIONS should be used.
2016-08-24 Thomas Preud'homme <thomas.preudhomme@arm.com>
* doc/fragments.texi (MULTILIB_REUSE): Mention that only options in
MULTILIB_OPTIONS should be used. Small wording fixes.
* genmultilib: Memorize set of all option combinations in
combination_space. Detect if RHS of MULTILIB_REUSE uses an option not
found in MULTILIB_OPTIONS by checking if option set is listed in
combination_space. Output new and existing error message to stderr.
From-SVN: r239734
Thomas Preud'homme [Wed, 24 Aug 2016 09:51:26 +0000 (09:51 +0000)]
t-aprofile (MULTILIB_MATCHES): Add mapping for -mcpu=cortex-a7, -mfpu=neon-fp16, -mfpu=fpv5-d16 and -mfpu=fp-armv8.
2016-08-24 Thomas Preud'homme <thomas.preudhomme@arm.com>
* config/arm/t-aprofile (MULTILIB_MATCHES): Add mapping for
-mcpu=cortex-a7, -mfpu=neon-fp16, -mfpu=fpv5-d16 and -mfpu=fp-armv8.
Fix typo in -mfpu=vfpv3-d16-fp16 mapping.
(MULTILIB_REUSE): Remove reuse rules for option set including
-mfpu=fp-armv8 and -mfpu=vfpv4
From-SVN: r239733
Senthil Kumar Selvaraj [Wed, 24 Aug 2016 08:36:56 +0000 (08:36 +0000)]
Fix bogus testsuite failures for avr.
gcc/testsuite/
2016-08-24 Senthil Kumar Selvaraj <senthil_kumar.selvaraj@atmel.com>
* gcc.c-torture/execute/pr71083.c: Use UINT32_TYPE instead
of unsigned int.
* gcc.dg/zero_sign_ext_test.c: Require int32plus.
From-SVN: r239732
Aditya Kumar [Wed, 24 Aug 2016 08:03:01 +0000 (08:03 +0000)]
Remove trailing whitespace in C++ headers
2016-08-24 Aditya Kumar <hiraditya@msn.com>
* include/bits/algorithmfwd.h: Remove trailing whitespace.
* include/bits/shared_ptr_base.h: Likewise.
From-SVN: r239731
Robert Suchanek [Wed, 24 Aug 2016 07:53:07 +0000 (07:53 +0000)]
re PR testsuite/77317 (x86_64 --target_board=''unix/ unix/-m32'' parallel testrun gives inconsistent results in gcc.dg/vect)
Fix PR testsuite/77317
gcc/testsuite/
* lib/target-supports.exp
(check_effective_target_vect_aligned_arrays): Don't cache the result.
(check_effective_target_vect_natural_alignment): Ditto.
(check_effective_target_vector_alignment_reachable): Ditto.
(check_effective_target_vector_alignment_reachable_for_64bit): Ditto.
From-SVN: r239730
Sebastian Huber [Wed, 24 Aug 2016 06:05:04 +0000 (06:05 +0000)]
[RTEMS] Add vfp multilib for ARM
gcc/
* config/arm/t-rtems: Add vfp multilib.
From-SVN: r239727
GCC Administrator [Wed, 24 Aug 2016 00:16:22 +0000 (00:16 +0000)]
Daily bump.
From-SVN: r239726
Ian Lance Taylor [Tue, 23 Aug 2016 20:43:17 +0000 (20:43 +0000)]
s390.c (s390_asm_file_start): Call default_file_start.
gcc/:
* config/s390/s390.c (s390_asm_file_start): Call
default_file_start.
gcc/testsuite/:
* gcc.target/s390/nolrl-1.c: Don't match the file name.
From-SVN: r239713
Michael Meissner [Tue, 23 Aug 2016 20:41:32 +0000 (20:41 +0000)]
rs6000.c (rs6000_expand_vector_init): Set initialization of all 0's to the 0 constant, instead of directly generating XOR.
[gcc]
2016-08-23 Michael Meissner <meissner@linux.vnet.ibm.com>
* config/rs6000/rs6000.c (rs6000_expand_vector_init): Set
initialization of all 0's to the 0 constant, instead of directly
generating XOR. Add support for V4SImode vector initialization on
64-bit systems with direct move, and rework the ISA 3.0 V4SImode
initialization. Change variables used in V4SFmode vector
intialization. For V4SFmode vector splat on ISA 3.0, make sure
any memory addresses are in index form. Add support for using
VSPLTH/VSPLTB to initialize vector short and vector char vectors
with all of the same element.
(regno_or_subregno): New helper function to return a register
number for either REG or SUBREG.
(rs6000_adjust_vec_address): Do not generate ADDI <reg>,R0,<num>.
Use regno_or_subregno where possible.
(rs6000_split_v4si_init_di_reg): New helper function to build up a
DImode value from two SImode values in order to generate V4SImode
vector initialization on 64-bit systems with direct move.
(rs6000_split_v4si_init): Split up the insns for a V4SImode vector
initialization.
(rtx_is_swappable_p): V4SImode vector initialization insn is not
swappable.
* config/rs6000/rs6000-protos.h (rs6000_split_v4si_init): Add
declaration.
* config/rs6000/vsx.md (VSX_SPLAT_I): New mode iterators and
attributes to initialize V8HImode and V16QImode vectors with the
same element.
(VSX_SPLAT_COUNT): Likewise.
(VSX_SPLAT_SUFFIX): Likewise.
(UNSPEC_VSX_VEC_INIT): New unspec.
(vsx_concat_v2sf): Eliminate using 'preferred' register classes.
Allow SFmode values to come from Altivec registers.
(vsx_init_v4si): New insn/split for V4SImode vector initialization
on 64-bit systems with direct move.
(vsx_splat_<mode>, VSX_W iterator): Rework V4SImode and V4SFmode
vector initializations, to allow V4SImode vector initializations
on 64-bit systems with direct move.
(vsx_splat_v4si): Likewise.
(vsx_splat_v4si_di): Likewise.
(vsx_splat_v4sf): Likewise.
(vsx_splat_v4sf_internal): Likewise.
(vsx_xxspltw_<mode>, VSX_W iterator): Eliminate using 'preferred'
register classes.
(vsx_xxspltw_<mode>_direct, VSX_W iterator): Likewise.
(vsx_vsplt<VSX_SPLAT_SUFFIX>_di): New insns to support
initializing V8HImode and V16QImode vectors with the same
element.
* config/rs6000/rs6000.h (TARGET_DIRECT_MOVE_64BIT): Disallow
optimization if -maltivec=be.
[gcc/testsuite]
2016-08-23 Michael Meissner <meissner@linux.vnet.ibm.com>
* gcc.target/powerpc/vec-init-1.c: Add tests where the vector is
being created from pointers to memory locations.
* gcc.target/powerpc/vec-init-2.c: Likewise.
From-SVN: r239712
David Malcolm [Tue, 23 Aug 2016 20:20:48 +0000 (20:20 +0000)]
line-map.h: add source_range::from_locations
libcpp/ChangeLog:
* include/line-map.h (source_range::from_locations): New method.
From-SVN: r239711
Christophe Lyon [Tue, 23 Aug 2016 20:07:52 +0000 (20:07 +0000)]
[ARM] Fix predicable_short_it attribute for arm_movqi_insn
2016-08-23 Christophe Lyon <christophe.lyon@linaro.org>
* config/arm/arm.md (arm_movqi_insn): Swap predicable_short_it
attribute for alternatives 3 and 4.
From-SVN: r239710
Fritz Reese [Tue, 23 Aug 2016 19:33:46 +0000 (19:33 +0000)]
decl.c (gfc_match_structure_decl): Make gfc_structure_id static.
2016-08-23 Fritz Reese <fritzoreese@gmail.com>
gcc/fortran/
* decl.c (gfc_match_structure_decl): Make gfc_structure_id static.
gcc/testsuite/gfortran.dg/
* dec_structure_12.f90: New testcase.
From-SVN: r239709
Ian Lance Taylor [Tue, 23 Aug 2016 17:45:45 +0000 (17:45 +0000)]
compiler: revamp scheme for ordering calls to import init fcns.
Switch to a new method for determining the order in which import init
functions are invoked: build an init fcn dependence DAG and walk the DAG
to rewrite/adjust priorities to account for discrepancies introduced by
"go test".
This patch includes a change to the export data format generated
by gccgo. Older versions of gccgo will not be able to read object files
produced by a newer gccgo, but the new gcc will still be able to read
old object files.
Fixes golang/go#15738.
Reviewed-on: https://go-review.googlesource.com/25301
From-SVN: r239708
David Malcolm [Tue, 23 Aug 2016 16:51:57 +0000 (16:51 +0000)]
selftest.h: add ASSERT_STR_CONTAINS
gcc/ChangeLog:
* selftest.c (selftest::assert_str_contains): New function.
(selftest::test_assertions): Verify ASSERT_STR_CONTAINS.
* selftest.h (selftest::assert_str_contains): New decl.
(ASSERT_STR_CONTAINS): New macro.
From-SVN: r239707
Fritz Reese [Tue, 23 Aug 2016 16:11:19 +0000 (16:11 +0000)]
interface.c (compare_components): Fix typo in name check conditional.
2016-08-23 Fritz Reese <fritzoreese@gmail.com>
gcc/fortran/
* interface.c (compare_components): Fix typo in name check conditional.
From-SVN: r239706
Jonathan Wakely [Tue, 23 Aug 2016 15:54:57 +0000 (16:54 +0100)]
Add C++17 constexpr to debug and profile mode arrays
* include/debug/array (array): Add _GLIBCXX17_CONSTEXPR.
* include/profile/array (array): Likewise.
(array::swap): Fix exception specification for zero-sized arrays.
From-SVN: r239705
Richard Biener [Tue, 23 Aug 2016 13:58:19 +0000 (13:58 +0000)]
re PR tree-optimization/77286 (ICE in fold_convert_loc, at fold-const.c:2248 building 435.gromacs)
2016-08-23 Richard Biener <rguenther@suse.de>
PR tree-optimization/77286
* tree-vect-loop.c (vect_analyze_loop_form_1): Do not modify
the CFG here.
(vect_transform_loop): Split exit edges of loop and scalar
loop if required and at the appropriate time.
From-SVN: r239700
Jonathan Wakely [Tue, 23 Aug 2016 13:15:12 +0000 (14:15 +0100)]
libstdc++/77334 move assign RB trees of non-copyable types
PR libstdc++/77334
* include/bits/stl_tree.h (_Rb_tree::_M_move_assign): New functions.
(_Rb_tree::operator=(_Rb_tree&&)): Dispatch to _M_move_assign.
* testsuite/23_containers/map/77334.cc: New test.
From-SVN: r239698
Jonathan Wakely [Tue, 23 Aug 2016 10:13:36 +0000 (11:13 +0100)]
Remove reference to -pthreads option in libstdc++ manual
* doc/xml/manual/using.xml: Remove reference to -pthreads option.
* doc/html/*: Regenerate.
From-SVN: r239693
Jonathan Wakely [Tue, 23 Aug 2016 10:13:31 +0000 (11:13 +0100)]
Use dg-do preprocess instead of compile for tests
* testsuite/experimental/feat-cxx14.cc: Only preprocess, not compile.
* testsuite/experimental/feat-lib-fund.cc: Likewise.
From-SVN: r239692
Jonathan Wakely [Tue, 23 Aug 2016 10:13:26 +0000 (11:13 +0100)]
Implement resolution of LWG DR 685 precisely
PR libstdc++/71771
* include/bits/stl_iterator.h
(operator-(reverse_iterator<Iter>, reverse_iterator<Iter>): Only
define for C++98 mode.
(operator-(move_iterator<Iter>, move_iterator<Iter>): Don't define.
* testsuite/24_iterators/headers/iterator/synopsis.cc: Use
-std=gnu++98.
* testsuite/24_iterators/headers/iterator/synopsis_c++11.cc: New test.
* testsuite/24_iterators/headers/iterator/synopsis_c++14.cc: New test.
* testsuite/24_iterators/headers/iterator/synopsis_c++17.cc: New test.
* testsuite/24_iterators/move_iterator/greedy_ops.cc: Don't test
difference operator.
* testsuite/24_iterators/reverse_iterator/greedy_ops.cc: Only test
difference operator for C++98.
* testsuite/24_iterators/reverse_iterator/71771.cc: New test.
From-SVN: r239691
Jonathan Wakely [Tue, 23 Aug 2016 10:13:12 +0000 (11:13 +0100)]
Add constexpr to <iterator> and <array> for C++17
* include/bits/c++config (_GLIBCXX17_CONSTEXPR): Define.
* include/bits/range_access.h (begin, end, rbegin, rend, crbegin)
(crend): Add _GLIBCXX17_CONSTEXPR as per P0031R0.
* include/bits/stl_iterator.h (reverse_iterator, move_iterator)
(__make_reverse_iterator, make_reverse_iterator, make_move_iterator):
Likewise.
* include/bits/stl_iterator_base_funcs.h (__distance, __advance): Add
_GLIBCXX14_CONSTEXPR.
(distance, advance, next, prev): Add _GLIBCXX17_CONSTEXPR.
* include/std/array (array::begin, array::end, array::rbegin)
(array::rend, array::cbegin, array:cend, array::crbegin)
(array::crend, array::operator[], array::at, array::front)
(array::back, array::data): Likewise.
* testsuite/24_iterators/headers/iterator/range_access.cc: Replace
with separate tests for C++11, C++14, and C++17.
* testsuite/24_iterators/headers/iterator/range_access_c++11.cc: New.
* testsuite/24_iterators/headers/iterator/range_access_c++14.cc: New.
* testsuite/24_iterators/headers/iterator/range_access_c++17.cc: New.
From-SVN: r239690
Dominik Vogt [Tue, 23 Aug 2016 09:20:15 +0000 (09:20 +0000)]
Drop excess size used for run time allocated stack variables.
* get_dynamic_stack_size is passed a SIZE of a data block (which is
allocated elsewhere), the SIZE_ALIGN of the SIZE (i.e. the alignment
of the underlying memory units (e.g. 32 bytes split into 4 times 8
bytes = 64 bit alignment) and the REQUIRED_ALIGN of the data portion
of the allocated memory.
* Assuming the function is called with SIZE = 2, SIZE_ALIGN = 8 and
REQUIRED_ALIGN = 64 it first adds 7 bytes to SIZE -> 9. This is
what is needed to have two bytes 8-byte-aligned at some memory
location without any known alignment.
* Finally round_push is called to round up SIZE to a multiple of the
stack slot size.
The key to understanding this is that the function assumes that
STACK_DYNMAIC_OFFSET is completely unknown at the time its called
and therefore it does not make assumptions about the alignment of
STACKPOINTER + STACK_DYNMAIC_OFFSET. The latest patch simply
hard-codes that SP + SDO is supposed to be aligned to at least
stack slot size (and does that in a very complicated way). Since
there is no guarantee that this is the case on all targets, the
patch is broken. It may miscalculate a SIZE that is too small in
some cases.
However, on many targets there is some guarantee about the
alignment of SP + SDO even if the actual value of SDO is unknown.
On s390x it's always 8-byte-aligned (stack slot size). So the
right fix should be to add knowledge about the target's guaranteed
alignment of SP + SDO to the function. I'm right now testing a
much simpler patch that uses
REGNO_POINTER_ALIGN(VIRTUAL_STACK_DYNAMIC_REGNUM) as the
alignment.
gcc/ChangeLog:
2016-08-23 Dominik Vogt <vogt@linux.vnet.ibm.com>
* explow.c (get_dynamic_stack_size): Take known alignment of stack
pointer + STACK_DYNAMIC_OFFSET into account when calculating the
size needed. Correct a typo in a comment.
From-SVN: r239688
Dominik Vogt [Tue, 23 Aug 2016 09:13:31 +0000 (09:13 +0000)]
S/390: Fix insv-1.c test with -m31.
gcc/testsuite/ChangeLog:
2016-08-23 Dominik Vogt <vogt@linux.vnet.ibm.com>
* gcc.target/s390/insv-1.c: Fix test when running with -m31.
From-SVN: r239687
Dominik Vogt [Tue, 23 Aug 2016 09:09:45 +0000 (09:09 +0000)]
S/390: Improve result verification in test case vec-genmask-1.c.
THe attached patch improves checking of teh results of the subtests
"a" and "f". As they share the same "vone" instruction, the duplicate
scan-assembler-times was bogus. Moved "f" to a separate function to
fix this. Also double check that no extra "vgmf" instructions are
used.
gcc/testsuite/ChangeLog:
2016-08-23 Dominik Vogt <vogt@linux.vnet.ibm.com>
* gcc.target/s390/zvector/vec-genmask-1.c: Improve result
verification.
From-SVN: r239686
Dominik Vogt [Tue, 23 Aug 2016 09:01:42 +0000 (09:01 +0000)]
S/390: Add splitter for "and" with complement.
Split ~b & a to (b & a) ^ a. This is benefitial on z Systems since we
otherwise need a big -1 constant to be loaded for the ~b.
gcc/ChangeLog:
2016-08-23 Dominik Vogt <vogt@linux.vnet.ibm.com>
* config/s390/s390.md ("*andc_split"): New splitter for and with
complement.
gcc/testsuite/ChangeLog:
2016-08-23 Dominik Vogt <vogt@linux.vnet.ibm.com>
* gcc.target/s390/md/andc-splitter-1.c: New test case.
* gcc.target/s390/md/andc-splitter-2.c: Likewise.
From-SVN: r239685
Richard Biener [Tue, 23 Aug 2016 07:23:19 +0000 (07:23 +0000)]
re PR middle-end/27336 (delete null checks in callers to nonnull functions)
2016-08-23 Richard Biener <rguenther@suse.de>
PR tree-optimization/27336
* tree-vrp.c (infer_value_range): Handle stmts that can throw
by looking for a non-EH edge.
(process_assert_insertions_for): Likewise.
* c-c++-common/pr27336.c: New testcase.
From-SVN: r239684
Richard Biener [Tue, 23 Aug 2016 07:21:36 +0000 (07:21 +0000)]
re PR lto/77305 (-fdump-tree-all and -flto causes ICE)
2016-08-23 Richard Biener <rguenther@suse.de>
PR middle-end/77305
* statistics.c (statistics_counter_event): Robustify against
NULL current_pass.
From-SVN: r239683
Venkataramanan Kumar [Tue, 23 Aug 2016 06:45:36 +0000 (06:45 +0000)]
2016-08-23 Venkataramanan Kumar
* config/i386/i386.c (processor_alias_table): Enable PTA_PRFCHW
for targets amdfam10 and barcelona.
From-SVN: r239682
GCC Administrator [Tue, 23 Aug 2016 00:16:16 +0000 (00:16 +0000)]
Daily bump.
From-SVN: r239680
Marek Polacek [Mon, 22 Aug 2016 21:53:59 +0000 (21:53 +0000)]
re PR c++/77321 (crash in warn_for_memset)
PR c++/77321
* c-common.c (warn_for_memset): Check type for null.
* g++.dg/cpp1y/pr77321.C: New test.
From-SVN: r239676
Ian Lance Taylor [Mon, 22 Aug 2016 21:30:49 +0000 (21:30 +0000)]
compiler: don't permit P.M if P is a pointer type
When lowering method expressions of the form "P.M" where
P is a pointer type (e.g. "type P *T") make sure we examine
the method set of P and not T during method lookup.
Fixes golang/go#15722.
Reviewed-on: https://go-review.googlesource.com/24843
From-SVN: r239675
Tim Shen [Mon, 22 Aug 2016 19:50:15 +0000 (19:50 +0000)]
Split _M_dfs() into smaller functions.
* regex_executor.h(_M_handle_repeat, _M_handle_subexpr_begin)
(_M_handle_subexpr_end, _M_handle_line_begin_assertion)
(_M_handle_line_end_assertion, _M_handle_word_boundary)
(_M_handle_subexpr_lookahead, _M_handle_match)
(_M_handle_backref, _M_handle_accept, _M_handle_alternative):
Add separate function declarations.
* regex_executor.tcc: Split _M_dfs() into multiple handler functions.
From-SVN: r239673
Uros Bizjak [Mon, 22 Aug 2016 19:13:45 +0000 (21:13 +0200)]
i386.md (*zero_extendsidi2): Add (*r,*k) alternative.
* config/i386/i386.md (*zero_extendsidi2): Add (*r,*k) alternative.
(zero_extend<mode>di2): Ditto.
(*zero_extend<mode>si2): Ditto.
(*zero_extendqihi2): Ditto.
From-SVN: r239672
Steven G. Kargl [Mon, 22 Aug 2016 18:23:43 +0000 (18:23 +0000)]
re PR fortran/60774 (f951: internal compiler error: Segmentation fault: 11)
2016-08-22 Steven G. Kargl <kargl@gcc.gnu.org>
Bud Davis <jmdavis@link.com>
PR fortran/60774
* parse.c (next_free,next_fixed): Issue error for statement label
without a statement.
2016-08-22 Steven G. Kargl <kargl@gcc.gnu.org>
PR fortran/60774
* gfortran.dg/empty_label.f: Adjust test for new error message.
* gfortran.dg/empty_label.f90: Ditto.
* gfortran.dg/empty_label_typedecl.f90: Ditto.
* gfortran.dg/label_3.f90: Deleted (redundant with empty_label.f90).
* gfortran.dg/warnings_are_errors_1.f90: Remove invalid statement label.
Co-Authored-By: Bud Davis <jmdavis@link.com>
From-SVN: r239668
Steven G. Kargl [Mon, 22 Aug 2016 18:18:14 +0000 (18:18 +0000)]
re PR fortran/61318 (Improve error diagnostic by pointing to the expression and not to declared-at of a USE-associated variable)
2016-08-22 Steven G. Kargl <kargl@gcc.gnu.org>
PR fortran/61318
* interface.c (compare_parameter): Use better locus for error message.
2016-08-22 Steven G. Kargl <kargl@gcc.gnu.org>
PR fortran/61318
* gfortran.dg/pr61318.f90: New test.
From-SVN: r239667
Steven G. Kargl [Mon, 22 Aug 2016 18:12:33 +0000 (18:12 +0000)]
re PR fortran/77260 (bogus warning with ENTRY in a function)
2016-08-22 Steven G. Kargl <kargl@gcc.gnu.org>
PR fortran/77260
* gcc/fortran/trans-decl.c (generate_local_decl): Suppress warning
for unused variable if symbol is entry point.
2016-08-22 Steven G. Kargl <kargl@gcc.gnu.org>
PR fortran/77260
* gfortran.dg/pr77260_1.f90: New test.
* gfortran.dg/pr77260_2.f90: Ditto.
From-SVN: r239666
Joseph Myers [Mon, 22 Aug 2016 18:03:59 +0000 (19:03 +0100)]
Support __builtin_isinf_sign for new floating-point types (PR middle-end/77269).
The __builtin_isinf_sign folding uses a type-specific signbit built-in
function, meaning it only works for the types float, double and long
double, not for types such as _FloatN, _FloatNx, __float128. Since
the signbit built-in function is now type-generic, that can be used
unconditionally, much as the code uses the type-generic isinf built-in
function unconditionally, and this patch makes it do so, thereby
enabling __builtin_isinf_sign (which glibc uses to expand the isinf
macro since that macro in glibc traditionally provided the stronger
guarantees about the return value given by __builtin_isinf_sign) to
work for all floating-point types.
The test gcc.dg/torture/builtin-isinf_sign-1.c needs updating because
it tests that comparisons of calls to __builtin_isinf_sign to
conditional expressions involving __builtin_isinf and
__builtin_signbit* get optimized away, and with a change of what
particular built-in function for signbit is used, GCC doesn't notice
the expressions with type-generic and non-type-generic built-in
functions are equivalent at -O0 or -O1 (it does optimize away the
original test at -O2).
Bootstrapped with no regressions on x86_64-pc-linux-gnu.
PR middle-end/77269
gcc:
* builtins.c (fold_builtin_classify): Use builtin_decl_explicit
(BUILT_IN_SIGNBIT) to expand __builtin_isinf_sign.
gcc/testsuite:
* gcc.dg/torture/builtin-isinf_sign-1.c: Use __builtin_signbit not
__builtin_signbitf and __builtin_signbitl in expected generic
expansion.
* gcc.dg/torture/float128-tg-2.c, gcc.dg/torture/float128x-tg-2.c,
gcc.dg/torture/float16-tg-2.c, gcc.dg/torture/float32-tg-2.c,
gcc.dg/torture/float32x-tg-2.c, gcc.dg/torture/float64-tg-2.c,
gcc.dg/torture/float64x-tg-2.c, gcc.dg/torture/floatn-tg-2.h: New
tests.
From-SVN: r239665
Gleb Natapov [Mon, 22 Aug 2016 17:29:31 +0000 (17:29 +0000)]
libstdc++/68297 avoid throw/catch in make_exception_ptr
2016-08-22 Gleb Natapov <gleb@scylladb.com>
PR libstdc++/68297
* config/abi/pre/gnu-versioned-namespace.ver: Export
__cxa_init_primary_exception and std::exception_ptr(void*).
* config/abi/pre/gnu.ver (CXXABI_1.3.11) : Add new symbol version and
export __cxa_init_primary_exception and std::exception_ptr(void*).
* include/Makefile.am: Add new headers.
* include/Makefile.in: Regenerate.
* libsupc++/Makefile.am: Add new headers.
* libsupc++/Makefile.in: Regenerate.
* libsupc++/cxxabi.h (__cxa_allocate_exception): Move to ...
* libsupc++/cxxabi_init_exception.h: New header.
(__cxa_init_primary_exception): Declare.
* libsupc++/eh_throw.cc (__cxa_init_primary_exception): Define.
(__cxa_throw): Use __cxa_init_primary_exception.
* libsupc++/exception (std::exception): Move to ...
* libsupc++/exception.h: New header.
* libsupc++/exception_ptr.h (__exception_ptr::exception_ptr): Add
friend declaration.
(__exception_ptr::__dest_thunk): New function template.
(std::make_exception_ptr) [__cpp_rtti && !_GLIBCXX_HAVE_CDTOR_CALLABI]:
Use __cxa_allocate_exception and __cxa_init_primary_exception to
create exception_ptr.
* libsupc++/typeinfo: Include bits/exception.h instead of exception.
* testsuite/util/testsuite_abi.cc: Add CXXABI_1.3.11 version.
From-SVN: r239664
Jonathan Wakely [Mon, 22 Aug 2016 16:47:39 +0000 (17:47 +0100)]
Update links to libstdc++ Doxygen pages
* doc/xml/api.xml: Replace hardcoded links for specific versions with
link to docs for all releases.
* doc/html/*: Regenerate.
From-SVN: r239663
Jonathan Wakely [Mon, 22 Aug 2016 16:47:34 +0000 (17:47 +0100)]
Add noexcept to std::function swap
PR libstdc++/77322
* doc/xml/manual/intro.xml: Document DR 2062 change.
* include/std/functional (function::swap): Add noexcept.
(swap(function<Res(Args...)&, function<Res(Args...)&)): Likewise.
* testsuite/20_util/function/77322.cc: New test.
From-SVN: r239662
Patrick Palka [Mon, 22 Aug 2016 15:13:16 +0000 (15:13 +0000)]
Improve readability of debug_tree() dumps for SSA_NAME and VECTOR_CST
gcc/ChangeLog:
* print-tree.c (print_node) [VECTOR_CST]: Coalesce the output of
identical consecutive elements.
[SSA_NAME]: Print the name's def stmt on its own line. When printing
the node's def stmt, avoid printing an unwanted trailing newline by
replacing the call to print_gimple_stmt() with its inlined body and
adjusting it to not set pp_needs_newline and to call pp_flush()
instead of pp_newline_and_flush().
From-SVN: r239661
Joseph Myers [Mon, 22 Aug 2016 11:57:39 +0000 (12:57 +0100)]
Add minimal _FloatN, _FloatNx built-in functions.
This patch adds a minimal set of built-in functions for the new
_FloatN and _FloatNx types.
The functions added are __builtin_fabs*, __builtin_copysign*,
__builtin_huge_val*, __builtin_inf*, __builtin_nan* and
__builtin_nans* (where * = fN or fNx). That is, 42 new entries are
added to the enum of built-in functions and the associated array of
decls, where not all of them are actually supported on any one target.
These functions are believed to be sufficient for libgcc (complex
multiplication and division use __builtin_huge_val*,
__builtin_copysign* and __builtin_fabs*) and for glibc (which also
depends on complex multiplication from libgcc, as well as using such
functions itself). The basic target-independent support for folding /
expanding calls to these built-in functions is wired up, so those for
constants can be used in static initializers, and the fabs and
copysign built-ins can always be expanded to bit-manipulation inline
(for any format setting signbit_ro and signbit_rw, which covers all
formats supported for _FloatN and _FloatNx), although insn patterns
for fabs (abs<mode>2) and copysign (copysign<mode>3) will be used when
available and may result in more optimal code.
The complex multiplication and division functions in libgcc rely on
predefined macros (defined with -fbuilding-libgcc) to say what the
built-in function suffixes to use with a particular mode are. This
patch updates that code accordingly, where previously it involved a
hack supposing that machine-specific suffixes for constants were also
suffixes for built-in functions.
As with the main _FloatN / _FloatNx patch, this patch does not update
code dealing only with optimizations that currently has cases only
covering float, double and long double, though some such cases are
straightforward and may be covered in a followup patch.
The functions are defined with DEF_GCC_BUILTIN, so calls to the TS
18661-3 functions such as fabsf128 and copysignf128, without the
__builtin_, will not be optimized. As noted in the original _FloatN /
_FloatNx patch submission, in principle the bulk of the libm functions
that have built-in versions should have those versions extended to
cover the new types, but that would require more consideration of the
effects of increasing the size of the enum and initializing many more
functions at startup.
I don't know whether target-specific built-in functions can readily be
made into aliases for target-independent functions, but if they can,
it would make sense to do so for the x86, ia64 and rs6000 *q functions
corresponding to these, so that they can benefit from the
architecture-independent folding logic and from any optimizations
enabled for these functions in future, and so that less
target-specific code is needed to support them.
Bootstrapped with no regressions on x86_64-pc-linux-gnu.
gcc:
* tree.h (CASE_FLT_FN_FLOATN_NX, float16_type_node)
(float32_type_node, float64_type_node, float32x_type_node)
(float128x_type_node): New macros.
* builtin-types.def (BT_FLOAT16, BT_FLOAT32, BT_FLOAT64)
(BT_FLOAT128, BT_FLOAT32X, BT_FLOAT64X, BT_FLOAT128X)
(BT_FN_FLOAT16, BT_FN_FLOAT32, BT_FN_FLOAT64, BT_FN_FLOAT128)
(BT_FN_FLOAT32X, BT_FN_FLOAT64X, BT_FN_FLOAT128X)
(BT_FN_FLOAT16_FLOAT16, BT_FN_FLOAT32_FLOAT32)
(BT_FN_FLOAT64_FLOAT64, BT_FN_FLOAT128_FLOAT128)
(BT_FN_FLOAT32X_FLOAT32X, BT_FN_FLOAT64X_FLOAT64X)
(BT_FN_FLOAT128X_FLOAT128X, BT_FN_FLOAT16_CONST_STRING)
(BT_FN_FLOAT32_CONST_STRING, BT_FN_FLOAT64_CONST_STRING)
(BT_FN_FLOAT128_CONST_STRING, BT_FN_FLOAT32X_CONST_STRING)
(BT_FN_FLOAT64X_CONST_STRING, BT_FN_FLOAT128X_CONST_STRING)
(BT_FN_FLOAT16_FLOAT16_FLOAT16, BT_FN_FLOAT32_FLOAT32_FLOAT32)
(BT_FN_FLOAT64_FLOAT64_FLOAT64, BT_FN_FLOAT128_FLOAT128_FLOAT128)
(BT_FN_FLOAT32X_FLOAT32X_FLOAT32X)
(BT_FN_FLOAT64X_FLOAT64X_FLOAT64X)
(BT_FN_FLOAT128X_FLOAT128X_FLOAT128X): New type definitions.
* builtins.def (DEF_GCC_FLOATN_NX_BUILTINS): New macro.
(copysign, fabs, huge_val, inf, nan, nans): Use it.
* builtins.c (expand_builtin): Use CASE_FLT_FN_FLOATN_NX for fabs
and copysign.
(fold_builtin_0): Use CASE_FLT_FN_FLOATN_NX for inf and huge_val.
(fold_builtin_1): Use CASE_FLT_FN_FLOATN_NX for fabs.
* doc/extend.texi (Other Builtins): Document these built-in
functions.
* fold-const-call.c (fold_const_call): Use CASE_FLT_FN_FLOATN_NX
for nan and nans.
gcc/c-family:
* c-family/c-cppbuiltin.c (c_cpp_builtins): Check _FloatN and
_FloatNx types for suffixes for built-in functions.
gcc/testsuite:
* gcc.dg/torture/float128-builtin.c,
gcc.dg/torture/float128-ieee-nan.c,
gcc.dg/torture/float128x-builtin.c,
gcc.dg/torture/float128x-nan.c, gcc.dg/torture/float16-builtin.c,
gcc.dg/torture/float16-nan.c, gcc.dg/torture/float32-builtin.c,
gcc.dg/torture/float32-nan.c, gcc.dg/torture/float32x-builtin.c,
gcc.dg/torture/float32x-nan.c, gcc.dg/torture/float64-builtin.c,
gcc.dg/torture/float64-nan.c, gcc.dg/torture/float64x-builtin.c,
gcc.dg/torture/float64x-nan.c, gcc.dg/torture/floatn-builtin.h,
gcc.dg/torture/floatn-nan.h: New tests.
From-SVN: r239658
Joseph Myers [Mon, 22 Aug 2016 11:48:14 +0000 (12:48 +0100)]
Update TEST_I_F calls in ARM fp-int-convert tests.
gcc/testsuite:
* gcc.dg/torture/arm-fp16-int-convert-alt.c (FP16_MAX_EXP): New
macro.
(main): Update calls to TEST_I_F.
* gcc.dg/torture/arm-fp16-int-convert-ieee.c (FP16_MAX_EXP): New
macro.
(main): Update calls to TEST_I_F.
From-SVN: r239657
Gerald Pfeifer [Mon, 22 Aug 2016 11:43:35 +0000 (11:43 +0000)]
* doc/install.texi (Binaries): opencsw.org now uses https.
From-SVN: r239656
Joseph Myers [Mon, 22 Aug 2016 10:45:23 +0000 (11:45 +0100)]
Correct type names in fp-int-convert-float*x-timode.c tests.
gcc/testsuite:
* gcc.dg/torture/fp-int-convert-float128x-timode.c,
gcc.dg/torture/fp-int-convert-float32x-timode.c,
gcc.dg/torture/fp-int-convert-float64x-timode.c: Correct type
names in calls to TEST_I_F.
From-SVN: r239655
Richard Biener [Mon, 22 Aug 2016 08:25:30 +0000 (08:25 +0000)]
tree-ssa-forwprop.c (pass_forwprop::execute): Use RPO order.
2016-08-22 Richard Biener <rguenther@suse.de>
* tree-ssa-forwprop.c (pass_forwprop::execute): Use RPO order.
From-SVN: r239653
Bernd Edlinger [Mon, 22 Aug 2016 07:34:34 +0000 (07:34 +0000)]
re PR c/52952 (Wformat location info is bad (wrong column number))
2016-08-22 Bernd Edlinger <bernd.edlinger@hotmail.de>
PR c/52952
* gcc.dg/cpp/pr66415-1.c: Fix sporadic failure.
From-SVN: r239649
Senthil Kumar Selvaraj [Mon, 22 Aug 2016 06:12:32 +0000 (06:12 +0000)]
Skip tests that assume 4 byte alignment for avr
gcc/testsuite
* gcc.dg/ipa/propalign-1.c: Skip for targets with !natural_alignment_32
and !natural_alignment_64.
* gcc.dg/ipa/propalign-2.c: Likewise.
* gcc.dg/ipa/propalign-3.c: Likewise.
* gcc.dg/ipa/propalign-4.c: Likewise.
* gcc.dg/ipa/propalign-5.c: Likewise.
* lib/target-supports.exp
(check_effective_target_natural_alignment_32): Add avr-*-*.
From-SVN: r239647
GCC Administrator [Mon, 22 Aug 2016 00:16:15 +0000 (00:16 +0000)]
Daily bump.
From-SVN: r239646
Uros Bizjak [Sun, 21 Aug 2016 18:53:48 +0000 (20:53 +0200)]
re PR target/77270 (Flag -mprftchw is shared with 3dnow for -march=k8)
PR target/77270
* config/i386/i386.md (prefetch): When TARGET_PRFCHW or
TARGET_PREFETCHWT1 are disabled, emit 3dNOW! write prefetches for
non-SSE2 athlons only, otherwise prefer SSE prefetches.
From-SVN: r239643
GCC Administrator [Sun, 21 Aug 2016 00:16:14 +0000 (00:16 +0000)]
Daily bump.
From-SVN: r239642
Kugan Vivekanandarajah [Sat, 20 Aug 2016 12:12:06 +0000 (12:12 +0000)]
tree-vrp.c (vrp_visit_assignment_or_call): Changed to Return VR.
gcc/ChangeLog:
2016-08-20 Kugan Vivekanandarajah <kuganv@linaro.org>
* tree-vrp.c (vrp_visit_assignment_or_call): Changed to Return VR.
(vrp_visit_cond_stmt): Just sets TAKEN_EDGE_P.
(vrp_visit_switch_stmt): Likewise.
(extract_range_from_stmt): Factored out from vrp_visit_stmt.
(extract_range_from_phi_node): Factored out from vrp_visit_phi_stmt.
(vrp_visit_stmt): Use extract_range_from_stmt.
(vrp_visit_phi_node): Use extract_range_from_phi_node.
From-SVN: r239639
Kugan Vivekanandarajah [Sat, 20 Aug 2016 05:43:01 +0000 (05:43 +0000)]
Makefile.in: Add tree-vrp.h to GTFILES.
gcc/ChangeLog:
2016-08-20 Kugan Vivekanandarajah <kuganv@linaro.org>
* Makefile.in: Add tree-vrp.h to GTFILES.
* gengtype.c (open_base_files): Add tree-vrp.h.
* asan.c: Add tree-vrp.h which now has the definition value_range_type.
* builtins.c: Likewise.
* fold-const.c: Likewise.
* gimple-builder.c: Likewise.
* gimple-laddress.c: Likewise.
* hsa-gen.c: Likewise.
* internal-fn.c: Likewise.
* ssa.h: Likewise.
* targhooks.c: Liewise,
* tree-ssa-address.c: Likewise.
* tree-ssanames.h (value_range_type: Move to tree-vrp.h.
* tree-vrp.c (struct value_range): Move to tree-vrp.h
* tree-vrp.h: New file.
From-SVN: r239638
Kugan Vivekanandarajah [Sat, 20 Aug 2016 01:18:09 +0000 (01:18 +0000)]
re PR tree-optimization/61839 (More optimize opportunity for VRP)
gcc/testsuite/ChangeLog:
2016-08-20 Kugan Vivekanandarajah <kuganv@linaro.org>
PR tree-optimization/61839
* gcc.dg/tree-ssa/pr61839_1.c: New test.
* gcc.dg/tree-ssa/pr61839_2.c: New test.
* gcc.dg/tree-ssa/pr61839_3.c: New test.
* gcc.dg/tree-ssa/pr61839_4.c: New test.
gcc/ChangeLog:
2016-08-20 Kugan Vivekanandarajah <kuganv@linaro.org>
PR tree-optimization/61839
* tree-vrp.c (two_valued_val_range_p): New.
(simplify_stmt_using_ranges): Convert CST BINOP VAR where VAR is
two-valued to VAR == VAL1 ? (CST BINOP VAL1) : (CST BINOP VAL2).
Also Convert VAR BINOP CST where VAR is two-valued to
VAR == VAL1 ? (VAL1 BINOP CST) : (VAL2 BINOP CST).
From-SVN: r239637
GCC Administrator [Sat, 20 Aug 2016 00:16:13 +0000 (00:16 +0000)]
Daily bump.
From-SVN: r239636
David Malcolm [Fri, 19 Aug 2016 21:18:05 +0000 (21:18 +0000)]
Reimplement removal fix-it hints in terms of replace
This patch eliminates class fixit_remove, reimplementing
rich_location::add_fixit_remove in terms of replacement with the
empty string. Deleting the removal subclass simplifies
fixit-handling code, as we only have two concrete fixit_hint
subclasses to deal with, rather than three.
The patch also fixes some problems in diagnostic-show-locus.c for
situations where a replacement fix-it has a different range to the
range of the diagnostic, by unifying the drawing of the two kinds of
fixits. For example, this:
foo = bar.field;
^
m_field
becomes:
foo = bar.field;
^
-----
m_field
showing the range to be replaced.
gcc/ChangeLog:
* diagnostic-show-locus.c
(layout::annotation_line_showed_range_p): New method.
(layout::print_any_fixits): Remove case fixit_hint::REMOVE.
Reimplement case fixit_hint::REPLACE to cover removals, and
replacements where the range of the replacement isn't one
of the ranges in the rich_location.
(test_one_liner_fixit_replace): Likewise.
(selftest::test_one_liner_fixit_replace_non_equal_range): New
function.
(selftest::test_one_liner_fixit_replace_equal_secondary_range):
New function.
(selftest::test_diagnostic_show_locus_one_liner): Call the new
functions.
* diagnostic.c (print_parseable_fixits): Remove case
fixit_hint::REMOVE.
libcpp/ChangeLog:
* include/line-map.h (fixit_hint::kind): Delete REPLACE.
(class fixit_remove): Delete.
* line-map.c (rich_location::add_fixit_remove): Reimplement
by calling add_fixit_replace with an empty string.
(fixit_remove::fixit_remove): Delete.
(fixit_remove::affects_line_p): Delete.
From-SVN: r239632
Joseph Myers [Fri, 19 Aug 2016 21:06:53 +0000 (22:06 +0100)]
Regenerate .pot files.
gcc/po:
* gcc.pot: Regenerate.
libcpp/po:
* cpplib.pot: Regenerate.
From-SVN: r239630
Uros Bizjak [Fri, 19 Aug 2016 18:14:03 +0000 (20:14 +0200)]
re PR target/77270 (Flag -mprftchw is shared with 3dnow for -march=k8)
PR target/77270
* config/i386/i386.c (ix86_option_override_internal): Remove
PTA_PRFCHW from entries that also have PTA_3DNOW flag.
Enable SSE prefetch also for TARGET_PREFETCHWT1.
Do not try to enable TARGET_PRFCHW ISA flag here.
* config/i386/i386.md (prefetch): Enable also for TARGET_3DNOW.
Rewrite expander function body.
(*prefetch_3dnow): Enable for TARGET_3DNOW and TARGET_PREFETCHWT1.
From-SVN: r239626
Joseph Myers [Fri, 19 Aug 2016 17:43:26 +0000 (18:43 +0100)]
Implement C _FloatN, _FloatNx types.
ISO/IEC TS 18661-3:2015 defines C bindings to IEEE interchange and
extended types, in the form of _FloatN and _FloatNx type names with
corresponding fN/FN and fNx/FNx constant suffixes and FLTN_* / FLTNX_*
<float.h> macros. This patch implements support for this feature in
GCC.
The _FloatN types, for N = 16, 32, 64 or >= 128 and a multiple of 32,
are types encoded according to the corresponding IEEE interchange
format (endianness unspecified; may use either the NaN conventions
recommended in IEEE 754-2008, or the MIPS NaN conventions, since the
choice of convention is only an IEEE recommendation, not a
requirement). The _FloatNx types, for N = 32, 64 and 128, are IEEE
"extended" types: types extending a narrower format with range and
precision at least as big as those specified in IEEE 754 for each
extended type (and with unspecified representation, but still
following IEEE semantics for their values and operations - and with
the set of values being determined by the precision and the maximum
exponent, which means that while Intel "extended" is suitable for
_Float64x, m68k "extended" is not). These types are always distinct
from and not compatible with each other and the standard floating
types float, double, long double; thus, double, _Float64 and _Float32x
may all have the same ABI, but they are three still distinct types.
The type names may be used with _Complex to construct corresponding
complex types (unlike __float128, which acts more like a typedef name
than a keyword - thus, this patch may be considered to fix PR
c/32187). The new suffixes can be combined with GNU "i" and "j"
suffixes for constants of complex types (e.g. 1.0if128, 2.0f64i).
The set of types supported is implementation-defined. In this GCC
patch, _Float32 is SFmode if that is suitable; _Float32x and _Float64
are DFmode if that is suitable; _Float128 is TFmode if that is
suitable; _Float64x is XFmode if that is suitable, and otherwise
TFmode if that is suitable. There is a target hook to override the
choices if necessary. "Suitable" means both conforming to the
requirements of that type, and supported as a scalar type including in
libgcc. The ABI is whatever the back end does for scalars of that
mode (but note that _Float32 is passed without promotion in variable
arguments, unlike float). All the existing issues with exceptions and
rounding modes for existing types apply equally to the new type names.
No GCC port supports a floating-point format suitable for _Float128x.
Although there is HFmode support for ARM and AArch64, use of that for
_Float16 is not enabled. Supporting _Float16 would require additional
work on the excess precision aspects of TS 18661-3: there are new
values of FLT_EVAL_METHOD, which are not currently supported in GCC,
and FLT_EVAL_METHOD == 0 now means that operations and constants on
types narrower than float are evaluated to the range and precision of
float. Implementing that, so that _Float16 gets evaluated with excess
range and precision, would involve changes to the excess precision
infrastructure so that the _Float16 case is enabled by default, unlike
the x87 case which is only enabled for -fexcess-precision=standard.
Other differences between _Float16 and __fp16 would also need to be
disentangled.
GCC has some prior support for nonstandard floating-point types in the
form of __float80 and __float128. Where these were previously types
distinct from long double, they are made by this patch into aliases
for _Float64x / _Float128 if those types have the required properties.
In principle the set of possible _FloatN types is infinite. This
patch hardcodes the four such types for N <= 128, but with as much
code as possible using loops over types to minimize the number of
places with such hardcoding. I don't think it's likely any further
such types will be of use in future (or indeed that formats suitable
for _Float128x will actually be implemented). There is a corner case
that all _FloatN, for N >= 128 and a multiple of 32, should be treated
as keywords even when the corresponding type is not supported; I
intend to deal with that in a followup patch.
Tests are added for various functionality of the new types, mostly
using type-generic headers. The tests use dg-add-options to pass any
extra options needed to enable the types; this is wired up to use the
same options as for __float128 on powerpc to enable _Float128 and
_Float64x, and effective-target keywords for runtime support do the
same hardware test as for __float128 to make sure the VSX instructions
generated by those options are supported. (Corresponding additions
would be needed for _Float16 on ARM as well if that were enabled with
-mfp16-format=ieee required to use it rather than unconditionally
available. Of course, -mfp16-format=alternative enables use of a
format which is not compatible with the requirements of the _Float16
type.)
C++ note: no support for the new types or constant suffixes is added
for C++. C++ decimal floating-point support was very different from
the C support, using class types, and the same may well apply to any
future C++ bindings for IEEE interchange and extended types. There is
a case, however, for supporting at least *f128 constants in C++, so
that code using __float128 can use the newer style for constants
throughout rather than needing to use the older *q constants in C++.
Also, if built-in functions are added that may provide a way in which
the types could leak into C++ code.
Fortran note: the float128_type_node used in the Fortran front end is
renamed to gfc_float128_type_node, since the semantics are different:
in particular, if long double has binary128 format, then the new
language-independent float128_type_node is a distinct type that also
has binary128 format, but the Fortran node is expected to be NULL in
that case. Likewise, Fortran's complex_float128_type_node is renamed
to gfc_complex_float128_type_node.
PowerPC note: the back end had an inconsistency that if TFmode was
binary128, *q constants were TFmode instead of KFmode but __float128
was KFmode. This patch follows the same logic as for *q constants, so
that _Float128 prefers TFmode (and __float128 becomes an alias for
_Float128).
ARM note: __fp16 is promoted to double (by convert_arguments) when
passed without a prototype / in variable arguments. But this is only
about the argument promotion; it is not handled as promoting in
c-common.c:self_promoting_args_p / c-typeck.c:c_type_promotes_to,
meaning that a K&R function definition for an argument of type __fp16
corresponds to a prototype with an argument of that type, not to one
with an argument of type double, whereas a float argument in a K&R
function definition corresponds to a double prototype argument - and
the same functions are also what's involved in making va_arg give a
warning and generate a call to abort when called with type float.
This is preserved by this patch, while arranging for _Float16 not to
be promoted when passed without a prototype / in variable arguments
(the promotion of float being considered a legacy feature, not applied
to any new types in C99 or later).
TS 18661-3 extends the set of decimal floating-point types similarly,
and adds new constant suffixes for the existing types, but this patch
does not do anything regarding that extension.
This patch does nothing regarding built-in functions, although
type-generic functions such as __builtin_isinf work for the new types
and associated tests are included. There are at least two levels of
built-in function support possible for these types. The minimal
level, implemented in
<https://gcc.gnu.org/ml/gcc-patches/2016-06/msg01702.html> (which
needs updating to use dg-add-options), adds built-in functions similar
to those x86 has for __float128: __builtin_inf* __builtin_huge_val*,
__builtin_nan*, __builtin_nans*, __builtin_fabs*, __builtin_copysign*.
That would be sufficient for glibc to use the *f128 names for built-in
functions by default with *q used only for backwards compatibility
when using older GCC versions. That would also allow c_cpp_builtins's
flag_building_libgcc code, defining __LIBGCC_%s_FUNC_EXT__, to use
such suffixes rather than the present code hardcoding logic about
target-specific constant suffixes and how those relate to function
suffixes.
Full built-in function support would cover the full range of built-in
functions for existing floating-point types, adding variants for all
the new types, except for a few obsolescent functions and
non-type-generic variants of type-generic functions. Some but not all
references to such functions in GCC use macros such as CASE_FLT_FN to
be type-generic; a fair amount of work would be needed to identify all
places to update. Adding all those functions would enable
optimizations (for constant arguments and otherwise) for TS 18661-3
functions, but it would also substantially expand the enum listing
built-in functions (and we've had problems with the size of that enum
in the past), and increase the amount of built-in function
initialization to do - I don't know what the startup cost involved in
built-in function initialization is, but it would be something to
consider when adding such a large set of functions.
There are also a range of optimizations, in match.pd and elsewhere,
that only operate on the three standard floating-point types. Ideally
those would be made generic to all floating-point types, but this
patch does nothing in that regard. Special care would be needed
regarding making sure library functions to which calls are generated
actually exist. For example, if sqrt is called on an argument of type
_Float32, and the result converted to _Float32, this is equivalent to
doing a square root operation directly on _Float32. But if the user's
libm does not have the sqrtf32 function, or the name is not reserved
because __STDC_WANT_IEC_60559_TYPES_EXT__ was not defined before
including <math.h>, you can only do that optimization if you convert
to a call to sqrtf instead.
DECIMAL_DIG now relates to all supported floating-point formats, not
just float, double and long double; I've raised the question with WG14
of how this relates to the formula for DECIMAL_DIG in C11 not
considering this. TS 18661-3 says it also covers non-arithmetic
formats only supported by library conversion functions; this patch
does not add any target hooks to allow for the case where there are
such formats wider than any supported for arithmetic types (where
e.g. libc supports conversions involving the binary128 representation,
but the _Float128 type is not supported).
GCC provides its own <tgmath.h> for some targets. No attempt is made
to adapt this to handle the new types.
Nothing is done regarding debug info for the new types (see the
"Debugger support for __float128 type?" thread on gcc@, Sep/Oct 2015).
No __SIZEOF_*__ macros are added for the new types.
Nothing is done with do_warn_double_promotion.
Nothing is done to include the new types in those determining
max_align_t, although properly it should be sufficiently aligned for
any of those types.
The logic for usual arithmetic conversions in c_common_type relies on
TYPE_PRECISION for floating-point types, which is less than ideal
(doesn't necessarily correspond to whether one type's values are
subset of another); looking in more detail at the formats might be
better. But since I included code in build_common_tree_nodes to work
around rs6000 KFmode having precision 113 not 128, I think it should
work. Ideally one might have errors in generic code for the case
where the two types do not have one type's values a subset of the
other (which is undefined behavior). But the only case where this can
actually occur is mixing IBM long double with binary128 on powerpc,
and rs6000_invalid_binary_op deals with that at present. TS 18661-3
does not fully specify the type resulting from the usual arithmetic
conversions in the case where two _FloatNx types have the same set of
values; I arranged the code to prefer the greater value of N in that
case.
The __FP_FAST_FMA* macros are not extended to cover the new types,
since there are no corresponding built-in functions (if built-in
fmafN, fmafNx are added, the macros should be extended, and the new
macros documented). Also, only a limited set of modes is handled in
mode_has_fma.
Diagnostics relating to the use of the new types with -pedantic do not
try to distinguish them from purely nonstandard types such as __int128
and constant suffixes such as *q.
If you use an unsupported _FloatN / _FloatNx type you get a warning
about the type defaulting to int after the warning about the type not
being supported. That's less than ideal, but it's also a pre-existing
condition if you use __int128 on a 32-bit system where it's
unsupported.
Bootstrapped with no regressions on x86_64-pc-linux-gnu. Other
back-end changes minimally tested by building cc1 for ia64-linux-gnu,
powerpc64le-linux-gnu, pdp11-none (the last failed for unrelated
reasons).
PR c/32187
gcc:
* tree-core.h (TI_COMPLEX_FLOAT16_TYPE)
(TI_COMPLEX_FLOATN_NX_TYPE_FIRST, TI_COMPLEX_FLOAT32_TYPE)
(TI_COMPLEX_FLOAT64_TYPE, TI_COMPLEX_FLOAT128_TYPE)
(TI_COMPLEX_FLOAT32X_TYPE, TI_COMPLEX_FLOAT64X_TYPE)
(TI_COMPLEX_FLOAT128X_TYPE, TI_FLOAT16_TYPE, TI_FLOATN_TYPE_FIRST)
(TI_FLOATN_NX_TYPE_FIRST, TI_FLOAT32_TYPE, TI_FLOAT64_TYPE)
(TI_FLOAT128_TYPE, TI_FLOATN_TYPE_LAST, TI_FLOAT32X_TYPE)
(TI_FLOATNX_TYPE_FIRST, TI_FLOAT64X_TYPE, TI_FLOAT128X_TYPE)
(TI_FLOATNX_TYPE_LAST, TI_FLOATN_NX_TYPE_LAST): New enum
tree_index values.
(NUM_FLOATN_TYPES, NUM_FLOATNX_TYPES, NUM_FLOATN_NX_TYPES): New
macros.
(struct floatn_type_info): New structure type.
(floatn_nx_types): New variable declaration.
* tree.h (FLOATN_TYPE_NODE, FLOATN_NX_TYPE_NODE)
(FLOATNX_TYPE_NODE, float128_type_node, float64x_type_node)
(COMPLEX_FLOATN_NX_TYPE_NODE): New macros.
* tree.c (floatn_nx_types): New variable.
(build_common_tree_nodes): Initialize _FloatN, _FloatNx and
corresponding complex types.
* target.def (floatn_mode): New hook.
* targhooks.c: Include "real.h".
(default_floatn_mode): New function.
* targhooks.h (default_floatn_mode): New prototype.
* doc/extend.texi (Floating Types): Document _FloatN and _FloatNx
types.
* doc/sourcebuild.texi (float@var{n}, float@var{n}x): Document new
effective-target and dg-add-options keywords.
(float@var{n}_runtime, float@var{n}x_runtime, floatn_nx_runtime):
Document new effective-target keywords.
* doc/tm.texi.in (TARGET_FLOATN_MODE): New @hook.
* doc/tm.texi: Regenerate.
* ginclude/float.h (LDBL_DECIMAL_DIG): Define to
__LDBL_DECIMAL_DIG__, not __DECIMAL_DIG__.
[__STDC_WANT_IEC_60559_TYPES_EXT__]: Define macros from TS
18661-3.
* real.h (struct real_format): Add field ieee_bits.
* real.c (ieee_single_format, mips_single_format)
(motorola_single_format, spu_single_format, ieee_double_format)
(mips_double_format, motorola_double_format)
(ieee_extended_motorola_format, ieee_extended_intel_96_format)
(ieee_extended_intel_128_format)
(ieee_extended_intel_96_round_53_format, ibm_extended_format)
(mips_extended_format, ieee_quad_format, mips_quad_format)
(vax_f_format, vax_d_format, vax_g_format, decimal_single_format)
(decimal_double_format, decimal_quad_format, ieee_half_format)
(arm_half_format, real_internal_format: Initialize ieee_bits
field.
* config/i386/i386.c (ix86_init_builtin_types): Do not initialize
float128_type_node. Set float80_type_node to float64x_type_node
if appropriate and long_double_type_node not appropriate.
* config/ia64/ia64.c (ia64_init_builtins): Likewise.
* config/pdp11/pdp11.c (pdp11_f_format, pdp11_d_format):
Initialize ieee_bits field.
* config/rs6000/rs6000.c (TARGET_FLOATN_MODE): New macro.
(rs6000_init_builtins): Set ieee128_float_type_node to
float128_type_node.
(rs6000_floatn_mode): New function.
gcc/c:
* c-tree.h (cts_floatn_nx): New enum c_typespec_keyword value.
(struct c_declspecs): Add field floatn_nx_idx.
* c-decl.c (declspecs_add_type, finish_declspecs): Handle _FloatN
and _FloatNx type specifiers.
* c-parser.c (c_keyword_starts_typename, c_token_starts_declspecs)
(c_parser_declspecs, c_parser_attribute_any_word)
(c_parser_objc_selector): Use CASE_RID_FLOATN_NX.
* c-typeck.c (c_common_type): Handle _FloatN and _FloatNx types.
(convert_arguments): Avoid promoting _FloatN and _FloatNx types
narrower than double.
gcc/c-family:
* c-common.h (RID_FLOAT16, RID_FLOATN_NX_FIRST, RID_FLOAT32)
(RID_FLOAT64, RID_FLOAT128, RID_FLOAT32X, RID_FLOAT64X)
(RID_FLOAT128X): New enum rid values.
(CASE_RID_FLOATN_NX): New macro.
* c-common.c (c_common_reswords): Add _FloatN and _FloatNx
keywords.
(c_common_type_for_mode): Check for _FloatN and _FloatNx and
corresponding complex types.
(c_common_nodes_and_builtins): For non-C++, register _FloatN and
_FloatNx and corresponding complex types.
(keyword_begins_type_specifier): Use CASE_RID_FLOATN_NX.
* c-cppbuiltin.c (builtin_define_float_constants): Check _FloatN
and _FloatNx types for the widest type for determining
DECIMAL_DIG. Define __LDBL_DECIMAL_DIG__ as well as
__DECIMAL_DIG__ for long double. Handle FMA_SUFFIX being NULL.
(c_cpp_builtins): Call builtin_define_float_constants for _FloatN
and _FloatNx types.
* c-lex.c (interpret_float): Handle _FloatN and _FloatNx
constants.
* c-pretty-print.c (pp_c_floating_constant): Handle _FloatN and
_FloatNx types.
gcc/fortran:
* trans-types.h (float128_type_node): Rename to
gfc_float128_type_node.
(complex_float128_type_node): Rename to
gfc_complex_float128_type_node.
* iso-c-binding.def, trans-intrinsic.c, trans-types.c: All users
changed.
gcc/testsuite:
* lib/target-supports.exp (check_effective_target_float16)
(check_effective_target_float32, check_effective_target_float64)
(check_effective_target_float128, check_effective_target_float32x)
(check_effective_target_float64x)
(check_effective_target_float128x)
(check_effective_target_float16_runtime)
(check_effective_target_float32_runtime)
(check_effective_target_float64_runtime)
(check_effective_target_float128_runtime)
(check_effective_target_float32x_runtime)
(check_effective_target_float64x_runtime)
(check_effective_target_float128x_runtime)
(check_effective_target_floatn_nx_runtime)
(add_options_for_float16, add_options_for_float32)
(add_options_for_float64, add_options_for_float128)
(add_options_for_float32x, add_options_for_float64x)
(add_options_for_float128x): New procedures.
* gcc.dg/dfp/floatn.c, gcc.dg/float128-typeof.c,
gcc.dg/float128x-typeof.c, gcc.dg/float16-typeof.c,
gcc.dg/float32-typeof.c, gcc.dg/float32x-typeof.c,
gcc.dg/float64-typeof.c, gcc.dg/float64x-typeof.c,
gcc.dg/floatn-arithconv.c, gcc.dg/floatn-errs.c,
gcc.dg/floatn-typeof.h, gcc.dg/torture/float128-basic.c,
gcc.dg/torture/float128-complex.c,
gcc.dg/torture/float128-floath.c, gcc.dg/torture/float128-tg.c,
gcc.dg/torture/float128x-basic.c,
gcc.dg/torture/float128x-complex.c,
gcc.dg/torture/float128x-floath.c, gcc.dg/torture/float128x-tg.c,
gcc.dg/torture/float16-basic.c, gcc.dg/torture/float16-complex.c,
gcc.dg/torture/float16-floath.c, gcc.dg/torture/float16-tg.c,
gcc.dg/torture/float32-basic.c, gcc.dg/torture/float32-complex.c,
gcc.dg/torture/float32-floath.c, gcc.dg/torture/float32-tg.c,
gcc.dg/torture/float32x-basic.c,
gcc.dg/torture/float32x-complex.c,
gcc.dg/torture/float32x-floath.c, gcc.dg/torture/float32x-tg.c,
gcc.dg/torture/float64-basic.c, gcc.dg/torture/float64-complex.c,
gcc.dg/torture/float64-floath.c, gcc.dg/torture/float64-tg.c,
gcc.dg/torture/float64x-basic.c,
gcc.dg/torture/float64x-complex.c,
gcc.dg/torture/float64x-floath.c, gcc.dg/torture/float64x-tg.c,
gcc.dg/torture/floatn-basic.h, gcc.dg/torture/floatn-complex.h,
gcc.dg/torture/floatn-convert.c, gcc.dg/torture/floatn-floath.h,
gcc.dg/torture/floatn-tg.h,
gcc.dg/torture/fp-int-convert-float128-ieee-timode.c,
gcc.dg/torture/fp-int-convert-float128-ieee.c,
gcc.dg/torture/fp-int-convert-float128x-timode.c,
gcc.dg/torture/fp-int-convert-float128x.c,
gcc.dg/torture/fp-int-convert-float16-timode.c,
gcc.dg/torture/fp-int-convert-float16.c,
gcc.dg/torture/fp-int-convert-float32-timode.c,
gcc.dg/torture/fp-int-convert-float32.c,
gcc.dg/torture/fp-int-convert-float32x-timode.c,
gcc.dg/torture/fp-int-convert-float32x.c,
gcc.dg/torture/fp-int-convert-float64-timode.c,
gcc.dg/torture/fp-int-convert-float64.c,
gcc.dg/torture/fp-int-convert-float64x-timode.c,
gcc.dg/torture/fp-int-convert-float64x.c: New tests.
* gcc.dg/torture/fp-int-convert.h (TEST_I_F): Add argument for
maximum exponent of floating-point type. Use it in testing
whether 0x8...0 fits in the floating-point type. Always treat -1
(signed 0xf...f) as fitting in the floating-point type.
(M_OK1): New macro.
* gcc.dg/torture/fp-int-convert-double.c,
gcc.dg/torture/fp-int-convert-float.c,
gcc.dg/torture/fp-int-convert-float128-timode.c,
gcc.dg/torture/fp-int-convert-float128.c,
gcc.dg/torture/fp-int-convert-float80-timode.c,
gcc.dg/torture/fp-int-convert-float80.c,
gcc.dg/torture/fp-int-convert-long-double.c,
gcc.dg/torture/fp-int-convert-timode.c: Update calls to TEST_I_F.
libcpp:
* include/cpplib.h (CPP_N_FLOATN, CPP_N_FLOATNX)
(CPP_N_WIDTH_FLOATN_NX, CPP_FLOATN_SHIFT, CPP_FLOATN_MAX): New
macros.
* expr.c (interpret_float_suffix): Handle fN, fNx, FN and FNx
suffixes.
From-SVN: r239625
Jonathan Wakely [Fri, 19 Aug 2016 16:36:07 +0000 (17:36 +0100)]
Simplify dg-options for tests using pthreads
* testsuite/21_strings/basic_string/pthread18185.cc: Use -pthread for
*-*-solaris* instead of -pthreads.
* testsuite/21_strings/basic_string/pthread4.cc : Likewise.
* testsuite/22_locale/locale/cons/12658_thread-1.cc: Likewise.
* testsuite/22_locale/locale/cons/12658_thread-2.cc: Likewise.
* testsuite/23_containers/list/pthread1.cc: Likewise.
* testsuite/23_containers/list/pthread5.cc: Likewise.
* testsuite/23_containers/map/pthread6.cc: Likewise.
* testsuite/27_io/basic_ofstream/pthread2.cc: Likewise.
* testsuite/27_io/basic_ostringstream/pthread3.cc: Likewise.
* testsuite/30_threads/shared_mutex/*: Likewise.
* testsuite/ext/rope/pthread7-rope.cc: Likewise.
* testsuite/tr1/2_general_utilities/shared_ptr/thread/
default_weaktoshared.cc: Likewise.
* testsuite/tr1/2_general_utilities/shared_ptr/thread/
mutex_weaktoshared.cc: Likewise.
* testsuite/20_util/shared_ptr/atomic/3.cc: Likewise. Use
dg-require-effective-target instead of using -std option.
* testsuite/20_util/shared_ptr/thread/default_weaktoshared.cc:
Likewise.
* testsuite/20_util/shared_ptr/thread/mutex_weaktoshared.cc: Likewise.
* testsuite/23_containers/vector/debug/multithreaded_swap.cc:
Likewise.
* testsuite/30_threads/async/*: Likewise.
* testsuite/30_threads/call_once/*: Likewise.
* testsuite/30_threads/condition_variable/*: Likewise.
* testsuite/30_threads/condition_variable_any/*: Likewise.
* testsuite/30_threads/future/*: Likewise.
* testsuite/30_threads/lock/*: Likewise.
* testsuite/30_threads/mutex/*: Likewise.
* testsuite/30_threads/packaged_task/*: Likewise.
* testsuite/30_threads/promise/*: Likewise.
* testsuite/30_threads/recursive_mutex/*: Likewise.
* testsuite/30_threads/recursive_timed_mutex/*: Likewise.
* testsuite/30_threads/shared_future/*: Likewise.
* testsuite/30_threads/shared_lock/*: Likewise.
* testsuite/30_threads/shared_timed_mutex/*: Likewise.
* testsuite/30_threads/this_thread/*: Likewise.
* testsuite/30_threads/thread/*: Likewise.
* testsuite/30_threads/timed_mutex/*: Likewise.
* testsuite/30_threads/try_lock/*: Likewise.
* testsuite/30_threads/unique_lock/*: Likewise.
From-SVN: r239624
Jonathan Wakely [Fri, 19 Aug 2016 15:42:34 +0000 (16:42 +0100)]
Define std::not_fn for C++17
* doc/xml/manual/status_cxx2017.xml: Update status of not_fn.
* doc/html/*: Regenerate.
* include/experimental/functional (_Not_fn, not_fn): Match C++17
semantics.
* include/std/functional (_Not_fn, not_fn): Define for C++17.
* testsuite/20_util/not_fn/1.cc: New.
* testsuite/experimental/functional/not_fn.cc: Test abstract class.
Remove test for volatile-qualified wrapper.
From-SVN: r239623
Jonathan Wakely [Fri, 19 Aug 2016 15:42:27 +0000 (16:42 +0100)]
Define std::atomic<T>::is_always_lock_free for C++17
* include/std/atomic (atomic::is_always_lock_free): Define.
* testsuite/29_atomics/atomic/60695.cc: Adjust dg-error lineno.
* testsuite/29_atomics/atomic/is_always_lock_free.cc: New.
* testsuite/29_atomics/atomic_integral/is_always_lock_free.cc: New.
* doc/xml/manual/status_cxx2017.xml: Update status.
* doc/html/*: Regenerate.
From-SVN: r239622
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