Uros Bizjak [Sun, 30 Jun 2019 21:12:07 +0000 (23:12 +0200)]
sse.md (ssse3_abs<mode>2): Rename from abs<mode>2.
* config/i386/sse.md (ssse3_abs<mode>2): Rename from abs<mode>2.
(abs<mode>2): New expander.
* config/i386/i386-builtin.def (__builtin_ia32_pabsb):
Use CODE_FOR_ssse3_absv8qi2.
(__builtin_ia32_pabsw): Use CODE_FOR_ssse3_absv4hi2.
(__builtin_ia32_pabsd): Use CODE_FOR_ssse3_absv2si2.
Iain Sandoe [Sun, 30 Jun 2019 14:58:45 +0000 (14:58 +0000)]
[PATCH, Ada] Push -shared-libgcc where needed.
Gnatlink has code that checks for duplicate '-shared-libgcc’ switches (but not
duplicate ‘static-libgcc’) and also pushes ’static-libgcc' onto the link line for
targets that default to static linking, provided '-shared-libgcc' is not present.
For targets that should use a shared libgcc we need the same process to be
applied (in inverse), in the event that they do not default to providing the
shared flag implicitly.
So this adds the complementary set of tests for the shared case and pushes
the shared flag as needed. As a minor tidy-up there’s no need push duplicates
of the libgcc switch onto the link line when one has already been seen (given by
the user).
The patch does not alter any of the platform defaults for static/shared libgcc,
but it ensures that the intent of the link is explicit.
gcc/ada/
2019-06-30 Iain Sandoe <iain@sandoe.co.uk>
* gnatlink.adb (Link_Step): Remove duplicate -static-libgcc switches.
Push -shared-libgcc explicitly, when it is the target default (unless
overidden by the static flag).
When the user has put an instance of shared/static-libgcc do not push
a duplicate of this.
Eric Botcazou [Sat, 29 Jun 2019 09:01:27 +0000 (09:01 +0000)]
decl.c (gnat_to_gnu_entity): Beep up comment on SAVED...
* gcc-interface/decl.c (gnat_to_gnu_entity): Beep up comment on SAVED,
and tweak comment on the assertion about the scopes of Itypes. Do not
skip the regular processing for Itypes that are E_Record_Subtype with
a Cloned_Subtype. Get the Cloned_Subtype for every E_Record_Subtype
if the type is dummy and hasn't got its own freeze node.
<E_Record_Subtype>: Save again the DECL of the Cloned_Subtype, if any.
<E_Access_Subtype>: Save again the DECL of the equivalent type.
(Gigi_Equivalent_Type) <E_Access_Subtype>: New case.
Eric Botcazou [Sat, 29 Jun 2019 08:22:35 +0000 (08:22 +0000)]
utils.c (unchecked_convert): Tweak comment.
* gcc-interface/utils.c (unchecked_convert): Tweak comment. Only skip
dereferences when padding to have the same size on both sides. Do it
for destination types with self-referential size too.
Eric Botcazou [Sat, 29 Jun 2019 08:10:20 +0000 (08:10 +0000)]
decl.c (gnat_to_gnu_entity): If the type requires strict alignment, then set the RM size to the type size.
* gcc-interface/decl.c (gnat_to_gnu_entity) <E_Record_Type>: If the
type requires strict alignment, then set the RM size to the type size.
Rework handling of alignment and sizes of tagged types in ASIS mode.
(validate_size): Rename local variable and remove special handling for
strict-alignment types.
* gcc-interface/utils.c (finish_record_type): Constify local variables
and use properly typed constants.
Eric Botcazou [Sat, 29 Jun 2019 07:53:27 +0000 (07:53 +0000)]
decl.c (gnat_to_gnu_field): Rework error messages for fields requiring strict alignment...
* gcc-interface/decl.c (gnat_to_gnu_field): Rework error messages for
fields requiring strict alignment, add explicit test on Storage_Unit
for position and size, and mention type alignment for position.
Eric Botcazou [Sat, 29 Jun 2019 07:30:22 +0000 (07:30 +0000)]
decl.c (set_nonaliased_component_on_array_type): Add missing guard for the presence of TYPE_CANONICAL.
* gcc-interface/decl.c (set_nonaliased_component_on_array_type): Add
missing guard for the presence of TYPE_CANONICAL.
(set_reverse_storage_order_on_array_type): Likewise.
Eric Botcazou [Sat, 29 Jun 2019 07:16:37 +0000 (07:16 +0000)]
expr.c (expand_expr_real_1): Apply the big-endian adjustment for bit-fields to all aggregate types.
* expr.c (expand_expr_real_1) <BIT_FIELD_REF>: Apply the big-endian
adjustment for bit-fields to all aggregate types.
ada/
* gcc-interface/gigi.h (make_packable_type): Remove default value.
(value_factor_p): Tweak prototype.
* gcc-interface/decl.c (gnat_to_gnu_entity): Add comment.
(gnat_to_gnu_component_type): Likewise.
(gnat_to_gnu_field): Likewise. Fetch the position of the field earlier
and simplify the condition under which the type is packed. Declare
local variable is_bitfield. Pass 1 as max_align to make_packable_type
if it is set to true.
(copy_and_substitute_in_layout): Pass 0 to make_packable_type.
* gcc-interface/utils.c (make_packable_array_type): New function.
(make_packable_type): Use it to rewrite the type of array field.
(maybe_pad_type): Pass align parameter to make_packable_type.
(create_field_decl): Minor tweaks.
(value_factor_p): Assert that FACTOR is a power of 2 and replace the
modulo computation by a masking operation.
Michael Meissner [Fri, 28 Jun 2019 20:19:54 +0000 (20:19 +0000)]
Update pc-relative support.
2019-06-28 Michael Meissner <meissner@linux.ibm.com>
* config/rs6000/predicates.md (pcrel_address): Use
SYMBOL_REF_LOCAL_P to determine if a label is local.
(pcrel_external_address): New predicate.
(non_prefixed_mem_operand): Delete, predicate not used.
* config/rs6000/rs6000.h (SYMBOL_FLAG_PCREL_P): Delete, we now use
SYMBOL_REF_LOCAL_P to determine if we can use pc-relative
addressing.
(SYMBOL_REF_PCREL_P): Likewise.
A recent RTX cost commit has changed the costs for ARC700 leading to errors in slsr-13.c test.
This commit fixes this issue by reverting the cost computation for short instructions.
Jan Beulich [Fri, 28 Jun 2019 08:46:56 +0000 (08:46 +0000)]
x86: fix CVT{,T}PD2PI insns
With just an "m" constraint misaligned memory operands won't be forced
into a register, and hence cause #GP. So far this was guaranteed only
in the case that CVT{,T}PD2DQ were chosen (which looks to be the case on
x86-64 only).
Switch the second alternative to Bm and also replace
nonimmediate_operand by vector_operand.
Dennis Zhang [Fri, 28 Jun 2019 08:42:09 +0000 (08:42 +0000)]
[Arm] Remove constraint strings from define_expand constructs in the back end
A number of Arm define_expand patterns have specified constraints for
their operands. But the constraint strings are ignored at expand time
and are therefore redundant/useless. We now avoid specifying constraints
in new define_expands, but we should clean up the existing define_expand
definitions.
2019-06-28 Dennis Zhang <dennis.zhang@arm.com>
* config/arm/arm.md: Remove redundant constraints from
define_expand but leave reload_inm and reload_outm patterns
untouched since they need special constraints to work.
* config/arm/arm-fixed.md: Remove redundant constraints from
define_expand.
* config/arm/iwmmxt.md: Likewise.
* config/arm/neon.md: Likewise.
* config/arm/sync.md: Likewise.
* config/arm/thumb1.md: Likewise.
* config/arm/vec-common.md: Likewise.
This patch adds libgcc configuration option to disable TM clone
registry. This option helps to reduce code size for embedded targets
which do not need transactional memory support.
Jason Merrill [Thu, 27 Jun 2019 21:29:19 +0000 (17:29 -0400)]
PR c++/55442 - memory-hog with highly recursive constexpr.
This testcase in the PR is extremely recursive, and therefore uses a huge
amount of memory on caching the results of individual calls. We no longer
need to track all calls to catch infinite recursion, as we have other limits
on maximum depth and operations count. So let's only cache a few calls at
the top level: 8 seems to be a reasonable compromise.
Jakub Jelinek [Thu, 27 Jun 2019 21:23:09 +0000 (23:23 +0200)]
re PR tree-optimization/91010 (ICE: Segmentation fault (in location_wrapper_p))
PR tree-optimization/91010
* tree-vect-stmts.c (scan_operand_equal_p): If offset1 == offset2,
return true. Otherwise, don't call operand_equal_p if offset1 or
offset2 is NULL and just return false.
Iain Sandoe [Thu, 27 Jun 2019 19:08:16 +0000 (19:08 +0000)]
[Darwin, PPC] Allow the user to override the use of hard float in kexts.
The default for the kernel is soft-float, however a user writing a kernel
extension might want to make use of hard float. This change makes
" -mkernel -mhard-float " work as expected.
Iain Sandoe [Thu, 27 Jun 2019 18:56:53 +0000 (18:56 +0000)]
[Darwin, PPC] Do not use longcall for 64b code.
The linker [ld64] that supports 64Bit does not need the JBSR longcall
optimisation, and will not work with the most generic case (where the
symbol is undefined external, but there is no symbl stub). So switch
the longcall option off. ld64 will generate branch islands as needed.
2019-06-27 Iain Sandoe <iain@sandoe.co.uk>
* config/rs6000/rs6000.c (darwin_rs6000_override_options): Do not
use longcall for 64b code.
Bill Schmidt [Thu, 27 Jun 2019 13:59:20 +0000 (13:59 +0000)]
rs6000.c (rs6000_option_override_internal): Enable -fvariable-expansion-in-unroller by default.
2019-06-27 Bill Schmidt <wschmidt@linux.ibm.com>
* config/rs6000/rs6000.c (rs6000_option_override_internal): Enable
-fvariable-expansion-in-unroller by default.
* doc/invoke.texi (-fvariable-expansion-in-unroller): Document new
default for Power.
Jan Hubicka [Thu, 27 Jun 2019 12:08:12 +0000 (12:08 +0000)]
lto-common.c: tree-pretty-print.h
* lto-common.c: tree-pretty-print.h
(type_streaming_finished): New static var.
(gimple_register_canonical_type_1): Return updated hash; handle ODR
types.
(iterative_hash_canonical_type): Update use of
gimple_register_canonical_type_1.
Jan Hubicka [Thu, 27 Jun 2019 12:07:43 +0000 (14:07 +0200)]
class.c (layout_class_type): Set TYPE_CXX_ODR_P for as-base type copy.
* class.c (layout_class_type): Set TYPE_CXX_ODR_P for as-base
type copy.
* ipa-devirt.c (odr_type_d): Add tbaa_enabled flag.
(add_type_duplicate): When odr hash is not allocated, to nothing.
(odr_based_tbaa_p): New function.
(set_type_canonical_for_odr_type): New function.
* ipa-utils.h (enable_odr_based_tbaa, odr_based_tbaa_p,
set_type_canonical_for_odr_type): New.
* tree.c (gimple_canonical_types_compatible_p): ODR types with
ODR based TBAA are not equivalent to non-ODR types.
* lto-common.c: Include demangle.h and tree-pretty-print.h
(type_streaming_finished): New static var.
(gimple_register_canonical_type_1): Return updated hash; handle ODR
types.
(iterative_hash_canonical_type): Update use of
gimple_register_canonical_type_1.
* g++.dg/lto/alias-2_0.C: New testcase.
* g++.dg/lto/alias-2_1.C: New testcase.
Jakub Jelinek [Thu, 27 Jun 2019 11:13:10 +0000 (13:13 +0200)]
re PR target/90991 (_mm_loadu_ps instrinsic translates to vmovaps in combination with _mm512_insertf32x4)
PR target/90991
* config/i386/sse.md (avx_vec_concat<mode>): Use nonimmediate_operand
instead of register_operand for operands[1], add m to its constraints
if operands[2] uses "C" constraint. Ensure in condition that if
operands[2] is not 0, then operands[1] is not a MEM. For last two
alternatives, use unaligned loads instead of aligned if operands[1] is
misaligned_operand.
* gcc.target/i386/avx2-pr90991-1.c: New test.
* gcc.target/i386/avx512dq-pr90991-2.c: New test.
When I refactored the filesystem_error code I changed it to only use the
constructor parameter in the what() string, instead of the string
returned by system_error::what(). That meant it no longer included the
description of the error_code that system_error adds. This restores the
previous behaivour, as encouraged by the standard ("Implementations
should include the system_error::what() string and the pathnames of
path1 and path2 in the native format in the returned string").
PR libstdc++/91012
* src/c++17/fs_path.cc (filesystem_error::_Impl): Use a string_view
for the what_arg parameters.
(filesystem_error::filesystem_error): Pass system_error::what() to
the _Impl constructor.
* testsuite/27_io/filesystem/filesystem_error/cons.cc: Ensure that
filesystem_error::what() contains system_error::what().
Jeff Law [Wed, 26 Jun 2019 21:36:27 +0000 (15:36 -0600)]
re PR tree-optimization/90883 (Generated code is worse if returned struct is unnamed)
PR tree-optimization/90883
* tree-ssa-alias.c (stmt_kills_ref_p): Handle BUILT_IN_CALLOC.
* tree-ssa-dse.c: Update various comments to distinguish between
dead and redundant stores.
(initialize_ao_ref_for_dse): Handle BUILT_IN_CALLOC.
(dse_optimize_redundant_stores): New function.
(delete_dead_or_redundant_call): Renamed from delete_dead_call.
Distinguish between dead and redundant calls in dump output. All
callers updated.
(delete_dead_or_redundant_assignment): Similarly for assignments.
(dse_optimize_stmt): Handle _CHK variants. For statements which
store 0 into multiple memory locations, try to prove a subsequent
store is redundant.
PR tree-optimization/90883
* g++.dg/tree-ssa/pr90883.C: New test.
* gcc.dg/tree-ssa/ssa-dse-36.c: New test.
Iain Sandoe [Wed, 26 Jun 2019 19:04:50 +0000 (19:04 +0000)]
[PATCH, PPC 2/2] Fix Darwin bootstrap after split of rs6000.c.
To fix this we need to make the branch islands (or code) visible between
both files. This keeps the generation side in rs6000.c and moves the
output routine to rs6000-logue.c, placing a reference to the islands
vector in rs6000-internal.h.
2019-06-26 Iain Sandoe <iain@sandoe.co.uk>
* config/rs6000/rs6000-internal.h (branch_island): New typedef.
(branch_islands): New extern.
* config/rs6000/rs6000-logue.c (macho_branch_islands): Moved from
* config/rs6000/rs6000.c: .. here.
Iain Sandoe [Wed, 26 Jun 2019 19:00:16 +0000 (19:00 +0000)]
[PATCH, PPC 1/2] Make sure the gt- files are built for all sub-targets.
The new gt-rs6000-logue.h is common to all sub-targets in the port, so
it needs to be added for them.
It seems better to place the common target_gtfiles in the powerpc*-*-*
section, rather than duplicating them in sub-targets. This would make it
less likely that a sub-target would be overlooked in any future file
introductions.
2019-06-26 Iain Sandoe <iain@sandoe.co.uk>
* config.gcc (powerpc*-*-linux*): Move target_gtfiles from here..
(powerpc*-*-*) ... to here.
Jonathan Wakely [Wed, 26 Jun 2019 14:38:23 +0000 (15:38 +0100)]
Add new helper traits for signed/unsigned integer types
Reuse the __is_one_of alias in additional places, and define traits to
check for signed/unsigned integer types so we don't have to duplicate
those checks elsewhere.
The additional overloads for std::byte in <bit> were reviewed by LEWG
and considered undesirable, so this patch removes them.
* include/bits/fs_path.h (path::__is_encoded_char): Use __is_one_of.
* include/std/bit (_If_is_unsigned_integer_type): Remove.
(_If_is_unsigned_integer): Use __is_unsigned_integer.
(rotl(byte, unsigned), rotr(byte, unsigned), countl_zero(byte))
(countl_one(byte), countr_zero(byte), countr_one(byte))
(popcount(byte), ispow2(byte), ceil2(byte), floor2(byte))
(log2p1(byte)): Remove.
* include/std/charconv (__detail::__is_one_of): Move to <type_traits>.
(__detail::__is_int_to_chars_type): Remove.
(__detail::__integer_to_chars_result_type): Use __is_signed_integer
and __is_unsigned_integer.
* include/std/type_traits (__is_one_of): Move here from <charconv>.
(__is_signed_integer, __is_unsigned_integer): New helpers.
* testsuite/26_numerics/bit/bit.pow.two/ceil2.cc: Remove test for
std::byte overload.
* testsuite/26_numerics/bit/bit.pow.two/floor2.cc: Likewise.
* testsuite/26_numerics/bit/bit.pow.two/ispow2.cc: Likewise.
* testsuite/26_numerics/bit/bit.pow.two/log2p1.cc: Likewise.
* testsuite/26_numerics/bit/bitops.count/countl_one.cc: Likewise.
* testsuite/26_numerics/bit/bitops.count/countl_zero.cc: Likewise.
* testsuite/26_numerics/bit/bitops.count/countr_one.cc: Likewise.
* testsuite/26_numerics/bit/bitops.count/countr_zero.cc: Likewise.
* testsuite/26_numerics/bit/bitops.count/popcount.cc: Likewise.
* testsuite/26_numerics/bit/bitops.rot/rotl.cc: Likewise.
* testsuite/26_numerics/bit/bitops.rot/rotr.cc: Likewise.
Nathan Sidwell [Wed, 26 Jun 2019 12:58:39 +0000 (12:58 +0000)]
[PR preprocessor/90927] Fixe dependency output
https://gcc.gnu.org/ml/gcc-patches/2019-06/msg01664.html
libcpp/
PR preprocessor/90927
* mkdeps.c (mkdeps::vec::operator[]): Add non-const variant.
(deps_add_target): Deal with out of order unquoted targets.
/* Return true if the OFFSET is valid for the quad address instructions that
use d-form (register + offset) addressing. */
diff --git a/gcc/config/rs6000/rs6000-logue.c b/gcc/config/rs6000/rs6000-logue.c
index 9df4b5a..adc137b 100644
--- a/gcc/config/rs6000/rs6000-logue.c
+++ b/gcc/config/rs6000/rs6000-logue.c
@@ -4025,8 +4025,8 @@ rs6000_output_function_prologue (FILE *file)
/* -mprofile-kernel code calls mcount before the function prolog,
so a profiled leaf function should stay a leaf function. */
-static bool
-rs6000_keep_leaf_when_profiled ()
+bool
+rs6000_keep_leaf_when_profiled (void)
{
return TARGET_PROFILE_KERNEL;
}
diff --git a/gcc/config/rs6000/rs6000.c b/gcc/config/rs6000/rs6000.c
index 3fc4029..bcfc881 100644
--- a/gcc/config/rs6000/rs6000.c
+++ b/gcc/config/rs6000/rs6000.c
@@ -1338,7 +1338,6 @@ static bool rs6000_secondary_reload_move (enum rs6000_reg_type,
secondary_reload_info *,
bool);
rtl_opt_pass *make_pass_analyze_swaps (gcc::context*);
-static bool rs6000_keep_leaf_when_profiled () __attribute__ ((unused));
static tree rs6000_fold_builtin (tree, int, tree *, bool);
/* Hash table stuff for keeping track of TOC entries. */
--
1.8.3.1
Jakub Jelinek [Wed, 26 Jun 2019 08:26:18 +0000 (10:26 +0200)]
re PR target/90991 (_mm_loadu_ps instrinsic translates to vmovaps in combination with _mm512_insertf32x4)
PR target/90991
* config/i386/sse.md
(*<extract_type>_vinsert<shuffletype><extract_suf>_0): Use vmovupd,
vmovups, vmovdqu, vmovdqu32 or vmovdqu64 instead of the aligned
insns if operands[2] is misaligned_operand.
Li Jia He [Wed, 26 Jun 2019 08:23:06 +0000 (08:23 +0000)]
[RS6000] Change maddld match_operand from DI to GPR
From PowerPC ISA3.0, the description of `maddld RT, RA.RB, RC` is as follows:
64-bit RA and RB are multiplied and then the RC is signed extend to 128 bits,
and add them together.
We only apply it to 64-bit mode (DI) when implementing maddld. However, if we
can guarantee that the result of the maddld operation will be limited to 32-bit
mode (SI), we can still apply it to 32-bit mode (SI).
gcc/ChangeLog
2019-06-26 Li Jia He <helijia@linux.ibm.com>
* config/rs6000/rs6000.h (TARGET_MADDLD): Remove the restriction of
TARGET_POWERPC64.
* config/rs6000/rs6000.md (maddld): Change maddld match_operand from DI
to GPR.
gcc/testsuite/ChangeLog
2019-06-26 Li Jia He <helijia@linux.ibm.com>
Martin Liska [Wed, 26 Jun 2019 06:44:28 +0000 (08:44 +0200)]
Fix missing else keyword seen with clang-static-analyzer:
2019-06-26 Martin Liska <mliska@suse.cz>
* bb-reorder.c (connect_better_edge_p): Add missing else
statement in the middle of if-else statements.
/home/marxin/Programming/gcc/gcc/bb-reorder.c:1031:2: warning: Value stored to 'is_better_edge' is never read
is_better_edge = true;
^ ~~~~
/home/marxin/Programming/gcc/gcc/bb-reorder.c:1034:2: warning: Value stored to 'is_better_edge' is never read
is_better_edge = false;
^ ~~~~~
Jason Merrill [Wed, 26 Jun 2019 04:56:07 +0000 (00:56 -0400)]
PR c++/70462 - unnecessary base ctor variant with final.
As pointed out in the PR, we don't need base 'tor variants for a final
class, since it can never be a base. I tried also dropping complete
variants for abstract classes, but that runs into ABI compatibility problems
with older releases that refer to those symbols.
* optimize.c (populate_clone_array): Skip base variant if
CLASSTYPE_FINAL.
(maybe_clone_body): We don't need an alias if we are only defining
one clone.
Steven G. Kargl [Wed, 26 Jun 2019 04:31:14 +0000 (04:31 +0000)]
re PR fortran/90988 (Wrong error message with variables named "PUBLIC*")
2019-06-24 Steven G. Kargl <kargl@gcc.gnu.org>
PR Fortran/90988
* decl.c (access_attr_decl): Use temporary variable to reduce
unreadability of code. Normalize jumping to return.
(gfc_match_protected): Fix parsing error. Add comments to
explain code. Remove dead code.
(gfc_match_private): Use temporary variable to reduce unreadability
of code. Fix parsing error. Move code to test for blank PRIVATE.
Remove dead code.
(gfc_match_public): Move code to test for blank PUBLIC. Fix
parsing error. Remove dead code.
Ian Lance Taylor [Wed, 26 Jun 2019 00:17:32 +0000 (00:17 +0000)]
libgo/testsuite: ignore symbols with a leading dot in symtogo
On AIX, a function has two symbols, a text symbol (with a leading dot)
and a data one (without it).
As the tests must be run only once, only the data symbol can be used to
retrieve the final go symbol. Therefore, all symbols beginning with a dot
are ignored by symtogo.
Ian Lance Taylor [Wed, 26 Jun 2019 00:04:36 +0000 (00:04 +0000)]
cmd/go: silence ar with D flag failures
The first call of ar must not show its output in order to avoid useless
error messages about D flag.
The corresponding Go toolchain patch is CL 182077.
Iain Sandoe [Tue, 25 Jun 2019 20:11:11 +0000 (20:11 +0000)]
[Darwin, PPC] Move the out of line register save/restore to an endfile.
We have been including this in libgcc, which means that we have to append
-lgcc even when using shared libgcc. In preparation for revision of libgcc
split this into an endfile.
* config.host: Add libef_ppc.a to the extra files for powerpc-darwin.
* config/rs6000/t-darwin: (PPC_ENDFILE_SRC, PPC_ENDFILE_OBJS): New.
Build objects for the out of line save/restore register functions
so that they can be used for any supported Darwin version.
* config/t-darwin: Default the build Darwin version to Darwin8
(MacOS 10.4).
Bill Seurer [Tue, 25 Jun 2019 20:06:07 +0000 (20:06 +0000)]
[PATCH, rs6000] Split up rs6000.c.
The source file rs6000.c has grown to unreasonable size and is being
split up into several smaller source files. This should improve
compilation speed for building gcc.
This is the first of several patches to do this and moves most of the
prologue/epilogue code to a new source file.
Bootstrapped and tested on powerpc64le-unknown-linux-gnu and
powerpc64-unknown-linux-gnu with no regressions. Is this ok for trunk?
2019-06-24 Bill Seurer <seurer@linux.vnet.ibm.com>
Jonathan Wakely [Tue, 25 Jun 2019 13:18:36 +0000 (14:18 +0100)]
Fix non-portable use of std::abs(double) in constexpr function
Although libstdc++ adds 'constexpr' to its std::abs(floating-point)
overloads (as a non-conforming extension), those overloads are not used
if the target libc provides them, which is the case on Solaris.
The fix is to avoid std::abs and simply apply the negation when needed.
* include/std/numeric (midpoint(T, T)): Avoid std::abs in constexpr
function.
projects / thirdparty / gcc.git / log
