Martin Liska [Thu, 27 Dec 2018 08:46:13 +0000 (09:46 +0100)]
Use proper location for tls_init function (PR c++/88263).
2018-12-27 Martin Liska <mliska@suse.cz>
PR c++/88263
* decl2.c (get_local_tls_init_fn): Add location_t argument and
use it.
(get_tls_init_fn): Call it with location of variable for which
we'll need to create tls_init function.
(handle_tls_init): Likewise.
2018-12-27 Martin Liska <mliska@suse.cz>
Ian Lance Taylor [Thu, 27 Dec 2018 03:13:11 +0000 (03:13 +0000)]
runtime: on ARM32 EABI, don't get LSDA if compact model is used
On ARM32 EABI, when the "compact" unwinding model is used, it
does not have standard LSDA and _Unwind_GetLanguageSpecificData
will not return data that is parseable by us. Check this
conditon before calling _Unwind_GetLanguageSpecificData.
Steven G. Kargl [Mon, 24 Dec 2018 18:26:25 +0000 (18:26 +0000)]
re PR fortran/45513 (BOZ kinds differently handled, F2008: BOZ in bit intrinsics)
2018-12-24 Steven G. Kargl <kargl@gcc.gnu.org>
PR fortran/45513
PR fortran/81509
* check.c: Rename function gfc_check_iand to gfc_check_iand_ieor_ior.
* check.c (boz_args_check): New function. Check I and J not both BOZ.
(gfc_check_dshift,gfc_check_iand_ieor_ior, gfc_check_ishft,
gfc_check_and, gfc_check_merge_bits): Use it.
* check.c (gfc_check_iand_ieor_ior): Force conversion of BOZ to kind
type of other agrument. Remove silly GNU extension.
(gfc_check_ieor, gfc_check_ior): Delete now unused functions.
* intrinsic.c (add_functions): Use gfc_check_iand_ieor_ior. Wrap long
line.
* intrinsic.h: Rename gfc_check_iand to gfc_check_iand_ieor_ior.
Delete prototype for bool gfc_check_ieor and gfc_check_ior
* intrinsic.texi: Update documentation for boz-literal-constant.
2018-12-24 Steven G. Kargl <kargl@gcc.gnu.org>
PR fortran/45513
PR fortran/81509
* gfortran.dg/graphite/id-26.f03: Fix non-conforming use of IAND.
* gfortran.dg/pr81509_1.f90: New test.
* gfortran.dg/pr81509_2.f90: New test.
Martin Sebor [Mon, 24 Dec 2018 15:32:11 +0000 (15:32 +0000)]
gimple-fold.c (get_range_strlen_tree): Factored out of get_range_strlen.
* gimple-fold.c (get_range_strlen_tree): Factored out of
get_range_strlen. Minor comment updates/additions. Assert
argument is not a simple SSA_NAME.
(get_range_strlen): Call get_range_strlen_tree as appropriate.
Minor comment updates/additions.
Jan Hubicka [Mon, 24 Dec 2018 11:26:15 +0000 (12:26 +0100)]
ipa-devirt.c (dump_targets): Cap number of targets printed.
* ipa-devirt.c (dump_targets): Cap number of targets printed.
(dump_possible_polymorphic_call_targets): Add verbose parameter.
(ipa_devirt): Use it.
* ipa-utils.h (dump_possible_polymorphic_call_targets): Add verbose
parametrs.
Iain Sandoe [Mon, 24 Dec 2018 08:43:20 +0000 (08:43 +0000)]
darwin, configuration, check properly for dwarf2 debug line support
This corrects a long-standing misconfiguration for Darwin.
The assembler supports the “.file” and “.loc” directives, but
the GCC configury was not detecting this because it was
using objdump, which does not exist on most Darwin installations.
We added support for “otool” to GCC and now we can use that to
make the check that’s done with objdump on ELF targets.
2018-12-24 Iain Sandoe <iain@sandoe.co.uk>
* configure.ac (dwarf2_debug_line): Check for the debug_line
section using otool when there’s no objdump available.
* configure: Regenerate.
Martin Sebor [Sun, 23 Dec 2018 16:00:45 +0000 (16:00 +0000)]
builtins.h (c_strlen_data): Add new fields and comments.
* builtins.h (c_strlen_data): Add new fields and comments.
* builtins.c (unterminated_array): Change field reference from
"len" to "minlen" in c_strlen_data instance.
* gimple-fold.c (get_range_strlen): Likewise.
* gimple-ssa-sprintf.c (get_string_length): Likewise.
Co-Authored-By: Jeff Law <law@redhat.com>
From-SVN: r267378
Martin Sebor [Sun, 23 Dec 2018 15:49:43 +0000 (15:49 +0000)]
builtins.c (unterminated_array): Rename "data" to "lendata".
* builtins.c (unterminated_array): Rename "data" to "lendata". Fix
a few comments.
(expand_builtin_strnlen, expand_builtin_stpcpy_1): Likewise.
(fold_builtin_strlen): Likewise.
* gimple-fold.c (get_range_strlen): Likewise. Also rename a couple
instances of "type" to "optype" and "arg" to "fld".
Co-Authored-By: Jeff Law <law@redhat.com>
From-SVN: r267377
Alan Modra [Sun, 23 Dec 2018 13:28:20 +0000 (23:58 +1030)]
[RS6000] PR88346, Inconsistent list of CPUs supported after r266502
This patch removes the %e error for AIX, since it seems there has been
no attempt to keep cpu support up to date for AIX, and adds missing
entries to ASM_CPU_SPEC in rs6000.h. The rs64a->rs64 name change
happened a long time ago as a fix for PR20813 (git commit c92b4c3f5b).
Iain Sandoe [Sun, 23 Dec 2018 12:43:47 +0000 (12:43 +0000)]
LTO-wrapper, don't pre-link early debug objects.
Pass them to the final link, the pre-link wasn't effective.
Make the temp filenames easier to follow.
Also save them in the CWD when save-temps is given.
2018-12-23 Iain Sandoe <iain@sandoe.co.uk>
* lto-wrapper.c (tool_cleanup): Don’t report ficticious temp files.
(debug_objcopy): Improve temp filenames. Append the early
debug objects to the outfiles. Remove the phase prelinking the
early debug. Emit the early debug filenames for ld.
Iain Sandoe [Sun, 23 Dec 2018 11:04:14 +0000 (11:04 +0000)]
Fix ident tests by Enabling ident output for X86 Darwin.
The c-c++-common tests fail (or XPASS depending on which) on Darwin
because it doesn't currently emit .ident marker. For X86 Darwin, this
is a trivial oversight; the assembler supports the directive. We can
therefore use the default target hook there.
Iain Sandoe [Sun, 23 Dec 2018 10:43:59 +0000 (10:43 +0000)]
use simple-object instead of nm to determine if files contain LTO.
This replaces the use of nm to search for the LTO common symbol marker
and uses simple object to see if there's a section starting with
".gnu.lto_." or ".gnu.offload_lto_"
2018-12-23 Iain Sandoe <iain@sandoe.co.uk>
* collect2.c (maybe_run_lto_and_relink): Don’t say we have a temp file
unless we actually did some LTO.
(has_lto_section, is_lto_object_file): New.
(maybe_lto_object_file): Remove.
(scan_prog_file): Use is_lto_object_file() instead of scanning the
output of nm.
Iain Sandoe [Sun, 23 Dec 2018 10:35:28 +0000 (10:35 +0000)]
Handle -save-temps in collect2
Handle the option, make the saved filenames and paths easier to handle.
Don't print '[Leaving...]' for files we never created and don't exist - or unless
verbose is true.
2018-12-23 Iain Sandoe <iain@sandoe.co.uk>
* collect2.c (main): Parse the output file early so we can make nicer
temp names. Respond to “-save-temps” in the GCC OPTIONS.
(maybe_unlink): Don’t print “[Leaving…”] for files we never created
and don’t exist.
Iain Sandoe [Sun, 23 Dec 2018 10:28:51 +0000 (10:28 +0000)]
Ensure collect2 responds to intended commmand line options.
To ensure compatibility with the flags consumed by ld, some of the flags
needed by collect2 come from the command line and some are passed
in the COLLECT_GCC_OPTIONS.
Here we combine initial parses of both and then set the LTO mode accordingly.
2018-12-23 Iain Sandoe <iain@sandoe.co.uk>
* collect2.c (main): Combine flags from both the command line and
COLLECT_GCC_OPTIONS to determine the set in force
Jason Merrill [Sun, 23 Dec 2018 00:06:34 +0000 (19:06 -0500)]
Remove support for demangling GCC 2.x era mangling schemes.
libiberty/
* cplus-dem.c: Remove cplus_mangle_opname, cplus_demangle_opname,
internal_cplus_demangle, and all subroutines.
(libiberty_demanglers): Remove entries for ancient GNU (pre-3.0),
Lucid, ARM, HP, and EDG demangling styles.
(cplus_demangle): Remove 'work' variable. Don't call
internal_cplus_demangle.
include/
* demangle.h: Remove support for ancient GNU (pre-3.0), Lucid,
ARM, HP, and EDG demangling styles.
Jan Hubicka [Sat, 22 Dec 2018 20:06:52 +0000 (21:06 +0100)]
tree.c: (obj_type_ref_class): Move to...
* tree.c: (obj_type_ref_class): Move to...
* ipa-devirt.c (obj_type_ref_class): Move to here; lookup main
odr type.
(get_odr_type): Compensate for type simplification.
* g++.dg/ipa/devirt-30.C: Add dg-do.
* g++.dg/lto/devirt-1_0.C: New testcase.
* g++.dg/lto/devirt-2_0.C: New testcase.
* g++.dg/lto/devirt-3_0.C: New testcase.
* g++.dg/lto/devirt-4_0.C: New testcase.
* g++.dg/lto/devirt-5_0.C: New testcase.
* g++.dg/lto/devirt-6_0.C: New testcase.
* g++.dg/lto/devirt-13_0.C: New testcase.
* g++.dg/lto/devirt-14_0.C: New testcase.
* g++.dg/lto/devirt-19_0.C: New testcase.
* g++.dg/lto/devirt-22_0.C: New testcase.
* g++.dg/lto/devirt-23_0.C: New testcase.
* g++.dg/lto/devirt-30_0.C: New testcase.
* g++.dg/lto/devirt-34_0.C: New testcase.
Iain Sandoe [Sat, 22 Dec 2018 20:06:47 +0000 (20:06 +0000)]
[Patch, PowerPC/Darwin] Fix library export of long double symbols.
During 8.x, the rs6000 target-specific mangling was reorganised which uncovered
a long-standing bug in Darwin’s mangling for ‘IBM’ long double. Now the symbols
are correctly mangled, and we end up with a bunch of test link fails.
This patch adds the necessary subset of the Linux long double exports to Darwin’s
export table.
2018-12-22 Iain Sandoe <iain@sandoe.co.uk>
* /config/os/bsd/darwin/ppc-extra.ver: Append long double symbols.
Steven G. Kargl [Sat, 22 Dec 2018 19:37:06 +0000 (19:37 +0000)]
re PR fortran/85798 (ICE in get_array_index, at fortran/data.c:69)
2018-12-22 Steven G . Kargl <kargl@gcc.gnu.org>
PR fortran/85798
* decl.c (gfc_match_data): If a component of a derived type entity
appears in data statement, check that does not have the allocatable
attribute.
2018-12-22 Steven G . Kargl <kargl@gcc.gnu.org>
PR fortran/85798
* gfortran.dg/pr85798.f90: New test.
Jakub Jelinek [Fri, 21 Dec 2018 19:58:36 +0000 (20:58 +0100)]
re PR c++/86524 (std::less with pointer arguments not usable in static_assert in constexpr function)
PR c++/86524
PR c++/88446
* cp-tree.h (cp_fold_maybe_rvalue, cp_fold_rvalue): Declare.
(fold_non_dependent_expr): Add manifestly_const_eval argument.
* constexpr.c (cxx_eval_builtin_function_call): Evaluate
__builtin_constant_p if ctx->manifestly_const_eval even in constexpr
functions. Don't reuse dummy{1,2} vars between different arguments.
Use cp_fold_rvalue instead of cp_fully_fold. Fix comment typo.
(fold_non_dependent_expr): Add manifestly_const_eval argument, pass
it through to cxx_eval_outermost_constant_expr and
maybe_constant_value.
* cp-gimplify.c (cp_fold_maybe_rvalue, cp_fold_rvalue): No longer
static.
* semantics.c (finish_static_assert): Call fold_non_dependent_expr
with true as manifestly_const_eval.
* g++.dg/cpp1y/constexpr-86524.C: New test.
* g++.dg/cpp2a/is-constant-evaluated4.C: New test.
* g++.dg/cpp2a/is-constant-evaluated5.C: New test.
* g++.dg/cpp2a/is-constant-evaluated6.C: New test.
Jakub Jelinek [Fri, 21 Dec 2018 19:17:13 +0000 (20:17 +0100)]
re PR middle-end/85594 (ICE during expand when compiling with -fwrapv -fopenmp)
PR middle-end/85594
PR middle-end/88553
* omp-expand.c (extract_omp_for_update_vars): Regimplify the condition
if needed.
(expand_omp_for_generic): Don't clobber t temporary for ordered loops.
* gcc.dg/gomp/pr85594.c: New test.
* gcc.dg/gomp/pr88553.c: New test.
Paul Thomas [Fri, 21 Dec 2018 19:09:42 +0000 (19:09 +0000)]
re PR fortran/87881 (gfortran.dg/inquiry_type_ref_(1.f08|3.f90) fail on darwin)
2018-12-21 Paul Thomas <pault@gcc.gnu.org>
PR fortran/87881
* expr.c (find_inquiry_ref): Loop through the inquiry refs in
case there are two of them.
(simplify_ref_chain): Return true after a successful call to
find_inquiry_ref.
2018-12-21 Paul Thomas <pault@gcc.gnu.org>
PR fortran/87881
* gfortran.dg/inquiry_part_ref_4.f90: New test.
Jakub Jelinek [Fri, 21 Dec 2018 16:01:53 +0000 (17:01 +0100)]
re PR target/88522 (Error: operand size mismatch for `vpgatherqq')
PR target/88522
* config/i386/sse.md (*avx512pf_gatherpf<mode>sf_mask,
*avx512pf_gatherpf<mode>df_mask, *avx512pf_scatterpf<mode>sf_mask,
*avx512pf_scatterpf<mode>df_mask): Use %X5 instead of %5 for
-masm=intel.
(gatherq_mode): Remove mode iterator.
(*avx512f_gathersi<mode>, *avx512f_gathersi<mode>_2): Use X instead
of <xtg_mode>.
(*avx512f_gatherdi<mode>): Use X instead of <gatherq_mode>.
(*avx512f_gatherdi<mode>_2, *avx512f_scattersi<mode>,
*avx512f_scatterdi<mode>): Use %X5 for -masm=intel.
Jakub Jelinek [Fri, 21 Dec 2018 15:54:55 +0000 (16:54 +0100)]
re PR rtl-optimization/88563 (wrong code with -O2 -fno-code-hoisting -fno-tree-ccp -fno-tree-dominator-opts -fno-tree-forwprop -fno-tree-fre -fno-tree-pre -fno-tree-vrp)
PR rtl-optimization/88563
* expr.c (expand_expr_real_2) <case WIDEN_MULT_EXPR>: Swap innermode
and mode arguments to convert_modes. Likewise swap mode and word_mode
arguments. Handle both arguments with VOIDmode before convert_modes
of one of them. Formatting fixes.
On some version of dejagnu, options in RUNTESTFLAGS are appended to the
command-line and thus any -mfloat-abi=softfp or -mfloat-abi=hard in
there overwrite the -mfloat-abi=soft in the dg-options for
size-optimization-ieee-* tests. Test is still run though because
arm_soft_ok returns true if -mfloat-abi=soft is accepted, even if the
file is not compiled for softfloat due to a later -mfloat-abi on the
command line.
This patch adds a dg-skip-if to those tests to ensure they are not run
in softfp or hard mode.
2018-12-21 Thomas Preud'homme <thomas.preudhomme@linaro.org>
gcc/testsuite/
* gcc.target/arm/size-optimization-ieee-1.c: Skip if passing
-mfloat-abi=softfp or -mfloat-abi=hard.
* gcc.target/arm/size-optimization-ieee-2.c: Likewise.
* gcc.target/arm/size-optimization-ieee-3.c: Likewise.
Jakub Jelinek [Fri, 21 Dec 2018 10:37:11 +0000 (11:37 +0100)]
re PR target/88547 (missed optimization for vector comparisons)
PR target/88547
* config/i386/i386.c (ix86_expand_int_sse_cmp): Optimize
x > y ? 0 : -1 into min (x, y) == x ? -1 : 0.
* gcc.target/i386/pr88547-1.c: Expect only 2 knotb and 2 knotw
insns instead of 4, check for vpminud, vpminuq and no vpsubd or
vpsubq.
* gcc.target/i386/sse2-pr88547-1.c: New test.
* gcc.target/i386/sse2-pr88547-2.c: New test.
* gcc.target/i386/sse4_1-pr88547-1.c: New test.
* gcc.target/i386/sse4_1-pr88547-2.c: New test.
* gcc.target/i386/avx2-pr88547-1.c: New test.
* gcc.target/i386/avx2-pr88547-2.c: New test.
* gcc.target/i386/avx512f-pr88547-2.c: New test.
* gcc.target/i386/avx512vl-pr88547-1.c: New test.
* gcc.target/i386/avx512vl-pr88547-2.c: New test.
* gcc.target/i386/avx512vl-pr88547-3.c: New test.
* gcc.target/i386/avx512f_cond_move.c (y): Change from unsigned int
array to int array.
Alexandre Oliva [Fri, 21 Dec 2018 05:40:53 +0000 (05:40 +0000)]
support --with-multilib-list=@name for ARM
Introduce @name as a means to specify alternate multilib profiles as
arguments to --with-multilib-list.
So far this is only implemented for ARM.
for gcc/ChangeLog
* config.gcc (tmake_file): Add name to tmake_file for
each @name in --with-multilib-list on arm-*-* targets.
* doc/install.texi (with-multilib-list): Document it.
H.J. Lu [Thu, 20 Dec 2018 21:41:48 +0000 (21:41 +0000)]
C/C++: Add -Waddress-of-packed-member
When address of packed member of struct or union is taken, it may result
in an unaligned pointer value. This patch adds -Waddress-of-packed-member
to check alignment at pointer assignment and warn unaligned address as
well as unaligned pointer:
extern struct pair_t p;
int *addr = &p.i;
$ gcc -O2 -S x.i
x.i:8:13: warning: taking address of packed member of ‘struct pair_t’ may result in an unaligned pointer value [-Waddress-of-packed-member]
8 | int *addr = &p.i;
| ^
$ cat c.i
struct B { int i; };
struct C { struct B b; } __attribute__ ((packed));
long* g8 (struct C *p) { return p; }
$ gcc -O2 -S c.i -Wno-incompatible-pointer-types
c.i: In function ‘g8’:
c.i:4:18: warning: converting a packed ‘struct C *’ pointer (alignment 1) to ‘long int *’ (alignment 8) may may result in an unaligned pointer value [-Waddress-of-packed-member]
4 | long* g8 (struct C *p) { return p; }
| ^
c.i:2:8: note: defined here
2 | struct C { struct B b; } __attribute__ ((packed));
| ^
$
This warning is enabled by default. Since read_encoded_value_with_base
in unwind-pe.h has
union unaligned
{
void *ptr;
unsigned u2 __attribute__ ((mode (HI)));
unsigned u4 __attribute__ ((mode (SI)));
unsigned u8 __attribute__ ((mode (DI)));
signed s2 __attribute__ ((mode (HI)));
signed s4 __attribute__ ((mode (SI)));
signed s8 __attribute__ ((mode (DI)));
} __attribute__((__packed__));
_Unwind_Internal_Ptr result;
and GCC warns:
gcc/libgcc/unwind-pe.h:210:37: warning: taking address of packed member of 'union unaligned' may result in an unaligned pointer value [-Waddress-of-packed-member]
result = (_Unwind_Internal_Ptr) u->ptr;
^
we need to add GCC pragma to ignore -Waddress-of-packed-member.
Jakub Jelinek [Thu, 20 Dec 2018 17:34:19 +0000 (18:34 +0100)]
re PR c++/88180 (ICE in vec<tree_node*, va_gc, vl_embed>::quick_push(tree_node* const&))
PR c++/88180
* parser.c (cp_parser_class_specifier_1): If
cp_parser_check_type_definition fails, skip default arguments, NSDMIs,
etc. like for erroneous template args.
* g++.dg/parse/pr88180.C: New test.
* g++.dg/pr85039-1.C: Don't expect diagnostics inside of the type
definition's NSDMIs.
Jakub Jelinek [Thu, 20 Dec 2018 17:31:05 +0000 (18:31 +0100)]
cp-tree.h (cp_fully_fold_init): Declare.
* cp-tree.h (cp_fully_fold_init): Declare.
* cp-gimplify.c (cp_fully_fold_init): New function.
* typeck2.c (split_nonconstant_init, store_init_value): Use it
instead of cp_fully_fold.
[AArch64][SVE] Fix IFN_COND_FMLA movprfx alternative
This patch fixes a cut-&-pasto in the (match_dup 4) version of
"cond_<SVE_COND_FP_TERNARY:optab><SVE_F:mode>". (It's a shame
that there's so much cut-&-paste in these patterns, but it's hard
to avoid without more infrastructure.)
2018-12-20 Richard Sandiford <richard.sandiford@arm.com>
gcc/
* config/aarch64/aarch64-sve.md (*cond_<optab><mode>_4): Use
sve_fmla_op rather than sve_fmad_op for the movprfx alternative.
gcc/testsuite/
* gcc.target/aarch64/sve/fmla_2.c: New test.
* gcc.target/aarch64/sve/fmla_2_run.c: Likewise
David Malcolm [Thu, 20 Dec 2018 14:18:48 +0000 (14:18 +0000)]
-Wtautological-compare: fix comparison of macro expansions
gcc/c-family/ChangeLog:
PR c++/87504
* c-warn.c (get_outermost_macro_expansion): New function.
(spelled_the_same_p): Use it to unwind the macro expansions, and
compare the outermost macro in each nested expansion, rather than
the innermost.
gcc/testsuite/ChangeLog:
PR c++/87504
* c-c++-common/Wtautological-compare-8.c: New test.
Richard Biener [Thu, 20 Dec 2018 11:39:59 +0000 (11:39 +0000)]
re PR tree-optimization/84362 (Auto-vectorization regression when accessing member variable through getter/accessor)
2018-12-20 Richard Biener <rguenther@suse.de>
PR tree-optimization/84362
* tree-ssa-loop-im.c: Include alias.h, builtins.h and tree-dfa.h.
(struct im_mem_ref): add ref_canonical flag.
(struct mem_ref_hasher): Use ao_ref as compare_type.
(mem_ref_hasher::equal): Adjust and add variant comparing ao_ref
parts.
(mem_ref_alloc): Take ao_ref parameter, initialize ref_canonical
member.
(gather_mem_refs_stmt): Set up ao_ref early and do the lookup
using it. If we have non-equal refs canonicalize the one
in the hashtable used for insertion.
(tree_ssa_lim_initialize): Adjust.
Jakub Jelinek [Thu, 20 Dec 2018 07:58:02 +0000 (08:58 +0100)]
re PR target/88547 (missed optimization for vector comparisons)
PR target/88547
* config/i386/i386.c (ix86_expand_sse_movcc): For maskcmp, try to
emit vpmovm2? instruction perhaps after knot?. Reorganize code
so that it doesn't have to test !maskcmp in almost every conditional.
Uros Bizjak [Wed, 19 Dec 2018 20:44:59 +0000 (21:44 +0100)]
i386.md (SWI1248_AVX512BWDQ_64): Rename from SWI1248_AVX512BWDQ2_64.
* config/i386/i386.md (SWI1248_AVX512BWDQ_64): Rename from
SWI1248_AVX512BWDQ2_64. Unconditionally enable HImode.
(*cmp<mode>_ccz_1): Emit kortest instead of ktest insn.
Use SWI1248_AVX512BWDQ_64 mode iterator and enable only for
TARGET_AVX512F.
[ARM] Optimize executable size when using softfloat fmul/dmul
Softfloat single precision and double precision floating-point
multiplication routines in libgcc share some code with the
floating-point division of their corresponding precision. As the code
is structured now, this leads to *all* division code being pulled in an
executable in softfloat mode even if only multiplication is
performed.
This patch create some new LIB1ASMFUNCS macros to also build files with
just the multiplication and shared code as weak symbols. By putting
these earlier in the static library, they can then be picked up when
only multiplication is used and they are overriden by the global
definition in the existing file containing both multiplication and
division code when division is needed.
The patch also removes changes made to the FUNC_START and ARM_FUNC_START
macros in r218124 since the intent was to put multiplication and
division code into their own section in a later patch to achieve the
same size optimization. That approach relied on specific section layout
to ensure multiplication and division were not too far from the shared
bit of code in order to the branches to be within range. Due to lack of
guarantee regarding section layout, in particular with all the
possibility of linker scripts, this approach was chosen instead. This
patch keeps the two testcases that were posted by Tony Wang on the mailing
list to implement this approach and adds a new one.
2018-12-19 Thomas Preud'homme <thomas.preudhomme@linaro.org>
libgcc/
* /config/arm/lib1funcs.S (FUNC_START): Remove unused sp_section
parameter and corresponding code.
(ARM_FUNC_START): Likewise in both definitions.
Also update footer comment about condition that need to match with
gcc/config/arm/elf.h to also include libgcc/config/arm/t-arm.
* config/arm/ieee754-df.S (muldf3): Also build it if L_arm_muldf3 is
defined. Weakly define it in this case.
* config/arm/ieee754-sf.S (mulsf3): Likewise with L_arm_mulsf3.
* config/arm/t-elf (LIB1ASMFUNCS): Build _arm_muldf3.o and
_arm_mulsf3.o before muldiv versions if targeting Thumb-1 only. Add
comment to keep condition in sync with the one in
libgcc/config/arm/lib1funcs.S and gcc/config/arm/elf.h.
gcc/
* config/arm/elf.h: Update comment about condition that need to
match with libgcc/config/arm/lib1funcs.S to also include
libgcc/config/arm/t-arm.
* doc/sourcebuild.texi (output-exists, output-exists-not): Rename
subsubsection these directives are in to "Check for output files".
Move scan-symbol to that section and add to it new scan-symbol-not
directive.
2018-12-19 Tony Wang <tony.wang@arm.com>
Thomas Preud'homme <thomas.preudhomme@linaro.org>
gcc/testsuite/
* lib/lto.exp (lto-execute): Define output_file and testname_with_flags
to same value as execname.
(scan-symbol): Move and rename to ...
* lib/gcc-dg.exp (scan-symbol-common): This. Adapt into a
helper function returning true or false if a symbol is present.
(scan-symbol): New procedure.
(scan-symbol-not): Likewise.
* gcc.target/arm/size-optimization-ieee-1.c: New testcase.
* gcc.target/arm/size-optimization-ieee-2.c: Likewise.
* gcc.target/arm/size-optimization-ieee-3.c: Likewise.
c++, asm: Do not handle any asm-qualifiers in top-level asm
Previously, "volatile" was allowed. Changing this simplifies the code,
makes things more regular, and makes the C and C++ frontends handle
this the same way.
cp/
* parser.c (cp_parser_asm_definition): Do not allow any asm qualifiers
on top-level asm.
testsuite/
* g++.dg/asm-qual-3.C: New testcase.
* gcc.dg/asm-qual-3.c: New testcase.
c/c++, asm: Use nicer error for duplicate asm qualifiers
Also as suggested by Jason.
c/
* c-parser.c (c_parser_asm_statement): Keep track of the location each
asm qualifier is first seen; use that to give nicer "duplicate asm
qualifier" messages. Delete 'quals" variable, instead pass the
"is_volatile_ flag to build_asm_stmt directly.
* c-tree.h (build_asm_stmt): Make the first arg bool instead of tree.
* c-typeck.c (build_asm_stmt): Ditto; adjust.
cp/
* parser.c (cp_parser_asm_definition): Rewrite the loop to work without
"done" boolean variable.
* parser.c (cp_parser_asm_definition): Keep track of the location each
asm qualifier is first seen; use that to give nicer "duplicate asm
qualifier" messages.
pr88375.cc:12:1: error: cannot convert 'a' to 'int' in initialization
12 | };
| ^
with the error at the final closing brace.
This patch uses location information for the initializers, converting the
above to:
pr88375.cc:10:11: error: cannot convert 'a' to 'int' in initialization
10 | { 3, a::two },
| ~~~^~~
| |
| a
highlighting which subexpression is problematic, and its type.
Ideally we'd also issue a note showing the field decl being initialized,
but that turned out to be more invasive.
gcc/cp/ChangeLog:
PR c++/88375
* typeck.c (convert_for_assignment): Capture location of rhs
before stripping, and if available. Use the location when
complaining about bad conversions, labelling it with the
rhstype if the location was present.
* typeck2.c (digest_init_r): Capture location of init before
stripping.
gcc/testsuite/ChangeLog:
PR c++/88375
* g++.dg/init/pr88375-2.C: New test.
* g++.dg/init/pr88375.C: New test.
David Malcolm [Wed, 19 Dec 2018 15:15:42 +0000 (15:15 +0000)]
C++: improvements to binary operator diagnostics (PR c++/87504)
The C frontend is able (where expression locations are available) to print
problems with binary operators in 3-location form, labelling the types of
the expressions:
arg_0 op arg_1
~~~~~ ^~ ~~~~~
| |
| arg1 type
arg0 type
The C++ frontend currently just shows the combined location:
arg_0 op arg_1
~~~~~~^~~~~~~~
and fails to highlight where the subexpressions are, or their types.
This patch introduces a op_location_t struct for handling the above
operator-location vs combined-location split, and a new
class binary_op_rich_location for displaying the above, so that the
C++ frontend is able to use the more detailed 3-location form for
type mismatches in binary operators, and for -Wtautological-compare
(where types are not displayed). Both forms can be seen in this
example:
bad-binary-ops.C:69:20: error: no match for 'operator&&' (operand types are
's' and 't')
69 | return ns_4::foo && ns_4::inner::bar;
| ~~~~~~~~~ ^~ ~~~~~~~~~~~~~~~~
| | |
| s t
bad-binary-ops.C:69:20: note: candidate: 'operator&&(bool, bool)' <built-in>
69 | return ns_4::foo && ns_4::inner::bar;
| ~~~~~~~~~~^~~~~~~~~~~~~~~~~~~
The patch also allows for some uses of macros in
-Wtautological-compare, where both sides of the comparison have
been spelled the same way, e.g.:
Wtautological-compare-ranges.c:23:11: warning: self-comparison always
evaluates to true [-Wtautological-compare]
23 | if (FOO == FOO);
| ^~
gcc/c-family/ChangeLog:
PR c++/87504
* c-common.h (warn_tautological_cmp): Convert 1st param from
location_t to const op_location_t &.
* c-warn.c (find_array_ref_with_const_idx_r): Call fold_for_warn
when testing for INTEGER_CST.
(warn_tautological_bitwise_comparison): Convert 1st param from
location_t to const op_location_t &; use it to build a
binary_op_rich_location, and use this.
(spelled_the_same_p): New function.
(warn_tautological_cmp): Convert 1st param from location_t to
const op_location_t &. Warn for macro expansions if
spelled_the_same_p. Use binary_op_rich_location.
gcc/c/ChangeLog:
PR c++/87504
* c-typeck.c (class maybe_range_label_for_tree_type_mismatch):
Move from here to gcc-rich-location.h and gcc-rich-location.c.
(build_binary_op): Use struct op_location_t and
class binary_op_rich_location.
gcc/cp/ChangeLog:
PR c++/87504
* call.c (op_error): Convert 1st param from location_t to
const op_location_t &. Use binary_op_rich_location for binary
ops.
(build_conditional_expr_1): Convert 1st param from location_t to
const op_location_t &.
(build_conditional_expr): Likewise.
(build_new_op_1): Likewise.
(build_new_op): Likewise.
* cp-tree.h (build_conditional_expr): Likewise.
(build_new_op): Likewise.
(build_x_binary_op): Likewise.
(cp_build_binary_op): Likewise.
* parser.c (cp_parser_primary_expression): Build a location
for id-expression nodes.
(cp_parser_binary_expression): Use an op_location_t when
calling build_x_binary_op.
(cp_parser_operator): Build a location for user-defined literals.
* typeck.c (build_x_binary_op): Convert 1st param from location_t
to const op_location_t &.
(cp_build_binary_op): Likewise. Use binary_op_rich_location.
gcc/ChangeLog:
PR c++/87504
* gcc-rich-location.c
(maybe_range_label_for_tree_type_mismatch::get_text): Move here from
c/c-typeck.c.
(binary_op_rich_location::binary_op_rich_location): New ctor.
(binary_op_rich_location::use_operator_loc_p): New function.
* gcc-rich-location.h
(class maybe_range_label_for_tree_type_mismatch)): Move here from
c/c-typeck.c.
(struct op_location_t): New forward decl.
(class binary_op_rich_location): New class.
* tree.h (struct op_location_t): New struct.
gcc/testsuite/ChangeLog:
* c-c++-common/Wtautological-compare-ranges.c: New test.
* g++.dg/cpp0x/pr51420.C: Add -fdiagnostics-show-caret and update
expected output.
* g++.dg/diagnostic/bad-binary-ops.C: Update expected output from
1-location form to 3-location form, with labelling of ranges with
types. Add examples of id-expression nodes with namespaces.
* g++.dg/diagnostic/param-type-mismatch-2.C: Likewise.
David Malcolm [Wed, 19 Dec 2018 15:08:21 +0000 (15:08 +0000)]
C++: more location wrapper nodes (PR c++/43064, PR c++/43486)
This is v6 of the patch, as posted to:
https://gcc.gnu.org/ml/gcc-patches/2018-12/msg01331.html
The C++ frontend gained various location wrapper nodes in r256448 (GCC 8).
That patch:
https://gcc.gnu.org/ml/gcc-patches/2018-01/msg00799.html
added wrapper nodes around all nodes with !CAN_HAVE_LOCATION_P for:
* arguments at callsites, and for
* typeid, alignof, sizeof, and offsetof.
This is a followup to that patch, adding many more location wrappers
to the C++ frontend. It adds location wrappers for nodes with
!CAN_HAVE_LOCATION_P to:
* all literal nodes (in cp_parser_primary_expression)
* all id-expression nodes (in finish_id_expression), except within a
decltype.
* all mem-initializer nodes within a mem-initializer-list
(in cp_parser_mem_initializer)
However, the patch also adds some suppressions: regions in the parser
for which wrapper nodes will not be created:
* within a template-parameter-list or template-argument-list (in
cp_parser_template_parameter_list and cp_parser_template_argument_list
respectively), to avoid encoding the spelling location of the nodes
in types. For example, "array<10>" and "array<10>" are the same type,
despite the fact that the two different "10" tokens are spelled in
different locations in the source.
* within a gnu-style attribute (none of are handlers are set up to cope
with location wrappers yet)
* within various OpenMP clauses
The patch enables various improvements to locations for bad
initializations, for -Wchar-subscripts, and enables various other
improvements in the followup patch.
For example, given the followup buggy mem-initializer:
class X {
X() : bad(42),
good(42)
{ }
void* bad;
int good;
};
previously, our diagnostic was on the final close parenthesis of the
mem-initializer-list, leaving it unclear where the problem is:
t.cc: In constructor 'X::X()':
t.cc:3:16: error: invalid conversion from 'int' to 'void*' [-fpermissive]
3 | good(42)
| ^
| |
| int
whereas with the patch we highlight which expression is bogus:
t.cc: In constructor 'X::X()':
t.cc:2:13: error: invalid conversion from 'int' to 'void*' [-fpermissive]
2 | X() : bad(42),
| ^~
| |
| int
Similarly, the diagnostic for this bogus initialization:
i.cc:1:44: error: initializer-string for array of chars is too long [-fpermissive]
1 | char test[3][4] = { "ok", "too long", "ok" };
| ^
is improved by the patch so that it indicates which string is too long:
i.cc:1:27: error: initializer-string for array of chars is too long [-fpermissive]
1 | char test[3][4] = { "ok", "too long", "ok" };
| ^~~~~~~~~~
gcc/c-family/ChangeLog:
PR c++/43064
PR c++/43486
* c-common.c (unsafe_conversion_p): Fold any location wrapper.
(verify_tree): Handle location wrappers.
(c_common_truthvalue_conversion): Strip any location wrapper.
Handle CONST_DECL.
(fold_offsetof): Strip any location wrapper.
(complete_array_type): Likewise for initial_value.
(convert_vector_to_array_for_subscript): Call fold_for_warn on the
index before checking for INTEGER_CST.
* c-pretty-print.c (c_pretty_printer::primary_expression): Don't
print parentheses around location wrappers.
* c-warn.c (warn_logical_operator): Call fold_for_warn on op_right
before checking for INTEGER_CST.
(warn_tautological_bitwise_comparison): Call
tree_strip_any_location_wrapper on lhs, rhs, and bitop's operand
before checking for INTEGER_CST.
(readonly_error): Strip any location wrapper.
(warn_array_subscript_with_type_char): Strip location wrappers
before checking for INTEGER_CST. Use the location of the index if
available.
gcc/ChangeLog:
PR c++/43064
PR c++/43486
* convert.c: Include "selftest.h".
(preserve_any_location_wrapper): New function.
(convert_to_pointer_maybe_fold): Update to handle location
wrappers.
(convert_to_real_maybe_fold): Likewise.
(convert_to_integer_1): Strip expr when using TREE_OVERFLOW.
Handle location wrappers when checking for INTEGER_CST.
(convert_to_integer_maybe_fold): Update to handle location
wrappers.
(convert_to_complex_maybe_fold): Likewise.
(selftest::test_convert_to_integer_maybe_fold): New functions.
(selftest::convert_c_tests): New function.
* convert.h (preserve_any_location_wrapper): New decl.
* fold-const.c (size_binop_loc): Strip location wrappers when
using TREE_OVERFLOW.
(operand_equal_p): Strip any location wrappers.
(integer_valued_real_p): Strip any location wrapper.
* selftest-run-tests.c (selftest::run_tests): Call
selftest::convert_c_tests.
* selftest.h (selftest::convert_c_tests): New decl.
* tree.c (build_complex): Assert that REAL and IMAG are constants.
(integer_zerop): Look through location wrappers.
(integer_onep): Likewise.
(integer_each_onep): Likewise.
(integer_all_onesp): Likewise.
(integer_minus_onep): Likewise.
(integer_pow2p): Likewise.
(integer_nonzerop): Likewise.
(integer_truep): Likewise.
(fixed_zerop): Likewise.
(real_zerop): Likewise.
(real_onep): Likewise.
(real_minus_onep): Likewise.
(tree_int_cst_equal): Likewise.
(simple_cst_equal): Treat location wrappers with non-equal source
locations as being unequal.
(uniform_integer_cst_p): Look through location wrappers.
(maybe_wrap_with_location): Don't create wrappers if any
auto_suppress_location_wrappers are active.
(suppress_location_wrappers): New variable.
(selftest::test_predicates): New test.
(selftest::tree_c_tests): Call it.
* tree.h (CONSTANT_CLASS_OR_WRAPPER_P): New macro.
(suppress_location_wrappers): New decl.
(class auto_suppress_location_wrappers): New class.
gcc/cp/ChangeLog:
PR c++/43064
PR c++/43486
* call.c (build_conditional_expr_1): Strip location wrappers when
checking for CONST_DECL.
(conversion_null_warnings): Use location of "expr" if available.
* class.c (fixed_type_or_null): Handle location wrappers.
* constexpr.c (potential_constant_expression_1): Likewise.
* cvt.c (ignore_overflows): Strip location wrappers when
checking for INTEGER_CST, and re-wrap the result if present.
(ocp_convert): Call fold_for_warn before checking for INTEGER_CST.
* decl.c (reshape_init_r): Strip any location wrapper.
(undeduced_auto_decl): Likewise.
* expr.c (mark_discarded_use): Likewise for expr.
* init.c (build_aggr_init): Likewise before checking init for
DECL_P.
(warn_placement_new_too_small): Call fold_for_warn on adj before
checking for CONSTANT_CLASS_P, and on nelts. Strip any location
wrapper from op0 and on oper before checking for VAR_P.
* parser.c (cp_parser_primary_expression): Call
maybe_add_location_wrapper on numeric and string literals.
(cp_parser_postfix_expression): Strip any location wrapper when
checking for DECL_IS_BUILTIN_CONSTANT_P.
(cp_parser_unary_expression): Ensure that folding of NEGATE_EXPR
around a constant happens in the presence of location wrappers and
returns a wrapped result.
(cp_parser_has_attribute_expression): Strip any location wrapper
from "oper".
(cp_parser_binary_expression): Strip any location wrapper when
checking for DECL_P on the lhs.
(cp_parser_decltype): Strip any location wrapper from result of
cp_parser_decltype_expr.
(cp_parser_mem_initializer): Add location wrappers to the
parenthesized expression list.
(cp_parser_template_parameter_list): Don't create wrapper nodes
within a template-parameter-list.
(cp_parser_template_argument_list): Don't create wrapper nodes
within a template-argument-list.
(cp_parser_parameter_declaration): Strip location wrappers from
default arguments.
(cp_parser_gnu_attribute_list): Don't create wrapper nodes.
(cp_parser_std_attribute_spec_seq): Likewise.
(cp_parser_omp_all_clauses): Don't create wrapper nodes within
OpenMP clauses.
(cp_parser_omp_for_loop): Likewise.
(cp_parser_omp_declare_reduction_exprs): Likewise.
* pt.c (convert_nontype_argument_function): Strip location
wrappers from fn_no_ptr before checking for FUNCTION_DECL.
(tsubst_default_argument): Move note about which callsite led to
instantiation to after the check_default_argument call.
(do_auto_deduction): Likewise from init before checking for
DECL_P.
* semantics.c (force_paren_expr): Likewise from expr before
checking for DECL_P.
(finish_parenthesized_expr): Likewise from expr before
checking for STRING_CST.
(perform_koenig_lookup): Likewise from fn.
(finish_call_expr): Likewise.
(finish_id_expression): Rename to...
(finish_id_expression_1): ...this, calling
maybe_add_location_wrapper on the result.
(capture_decltype): Use lookup_name_real rather than value_member
when looking up decl within the capture-list.
* tree.c (cp_stabilize_reference): Strip any location wrapper.
(builtin_valid_in_constant_expr_p): Likewise.
(strip_typedefs_expr): Strip any location wrapper before checking
for decls or constants.
(is_overloaded_fn): Likewise.
(maybe_get_fns): Likewise.
(selftest::test_lvalue_kind): Verify lvalue_p.
* typeck.c (cxx_sizeof_expr): Strip any location wrapper.
(cxx_alignof_expr): Likewise.
(is_bitfield_expr_with_lowered_type): Handle location wrappers.
(cp_build_array_ref): Call maybe_constant_value on "idx".
(cp_build_binary_op): Strip location wrapper from first_arg before
checking for PARM_DECL. Likewise for op1 before checking for
INTEGER_CST in two places. Likewise for orig_op0 and orig_op1
when checking for STRING_CST.
(cp_build_addr_expr_1): Likewise for arg when checking for
FUNCTION_DECL.
(cp_build_modify_expr): Likewise for newrhs when checking for
STRING_CST.
(convert_for_assignment): Don't strip location wrappers when
stripping NON_LVALUE_EXPR.
(maybe_warn_about_returning_address_of_local): Strip location
wrapper from whats_returned before checking for DECL_P.
(can_do_nrvo_p): Strip location wrapper from retval.
(treat_lvalue_as_rvalue_p): Likewise.
(check_return_expr): Likewise.
* typeck2.c (cxx_incomplete_type_diagnostic): Strip location
wrapper from value before checking for VAR_P or PARM_DECL.
(digest_init_r): Strip location wrapper from init. When
copying "init", also copy the wrapped node.
gcc/objc/ChangeLog:
PR c++/43064
PR c++/43486
* objc-act.c (objc_maybe_build_component_ref): Strip any location
wrapper before checking for UOBJC_SUPER_decl and self_decl.
(objc_finish_message_expr): Strip any location wrapper.
(gen_declaration): Strip location wrappers from "w".
gcc/testsuite/ChangeLog:
PR c++/43064
PR c++/43486
* c-c++-common/pr51712.c (valid2): Mark xfail as passing on C++.
* g++.dg/cpp0x/constexpr-47969.C: Update column of expected error.
* g++.dg/cpp0x/constexpr-ex2.C: Likewise.
* g++.dg/cpp0x/scoped_enum2.C: Likewise.
* g++.dg/cpp1z/decomp48.C: Update expected location of warning
for named local variables to use that of the local variable.
* g++.dg/ext/vla1.C: Update column.
* g++.dg/init/array43.C: Update expected column to be that of the
initializer.
* g++.dg/init/initializer-string-too-long.C: New test.
* g++.dg/init/new44.C: Add "-ftrack-macro-expansion=0".
* g++.dg/init/pr43064-1.C: New test.
* g++.dg/init/pr43064-2.C: New test.
* g++.dg/init/pr43064-3.C: New test.
* g++.dg/other/fold1.C: Update column of expected error.
* g++.dg/parse/crash36.C: Likewise.
* g++.dg/plugin/diagnostic-test-expressions-1.C: Add negative
integer and float expressions.
* g++.dg/template/defarg6.C: Move expected error to the default
argument; add expected message about where instantiated.
* g++.dg/wrappers/Wparentheses.C: New test.
* g++.old-deja/g++.bugs/900402_02.C: Update column of expected
error.
Paul A. Clarke [Wed, 19 Dec 2018 15:06:00 +0000 (15:06 +0000)]
[rs6000] Fix x86 SSSE3 compatibility implementations and testcases
This patch is the analog to r266868-r266870, but for SSSE3.
The SSSE3 tests had been inadvertently made to PASS without actually running
the test code. Actually running the code turned up some previously undetected
issues.
This patch fixes some issues in the implementations, fixes up the tests
to use a union for the test data, which avoids strict aliasing issues,
and enables the tests to actually run (by removing a dependency on
__BUILTIN_CPU_SUPPORTS).
Also, there's a fairly insignificant change in the testcases that walk
through the data as pairs of vectors from:
[0] and [1]
[2] and [3]
...
[n-4] and [n-3]
[n-2] and [n-1]
to:
[0] and [1]
[1] and [2]
...
[n-3] and [n-2]
[n-2] and [n-1]
Since the testcases compute the correct answers based on the input, no
other changes were necessary to effect the change.
git://gcc.gnu.org / gcc.git / log