Commit Graph

183063 Commits

Author SHA1 Message Date
Martin Liska 2e81b16c24 liblsan: build missing lsan_posix.cpp file
libsanitizer/ChangeLog:

	PR sanitizer/98828
	* lsan/Makefile.am: Add missing lsan_posix.cpp file.
	* lsan/Makefile.in: Likewise.
2021-01-26 14:14:40 +01:00
Martin Liska d40b21eebc libgcov: improve profile reproducibility
libgcc/ChangeLog:

	PR gcov-profile/98739
	* libgcov.h (gcov_topn_add_value): Do not train when
	we have a merged profile with a negative number of total
	value.
2021-01-26 12:44:34 +01:00
Thomas Koenig 80198c701a Commit test case for PR 67539.
gcc/testsuite/ChangeLog:

	PR fortran/67539
	* gfortran.dg/elemental_assignment_1.f90: New test.
2021-01-26 12:27:54 +01:00
Tobias Burnus b3cc0c9a6a testsuite/g++.dg/modules/modules.exp: Janitorial fixes
gcc/testsuite/ChangeLog:

	* g++.dg/modules/modules.exp: Remove unused CXX_MODULE_PATH;
	add previously missing space in '$ident link'.
2021-01-26 11:46:01 +01:00
Andrew Stubbs d9f5036610 amdgcn: Allow V64DFmode min/max reductions
I don't know why these were disabled. There're no direct min/max DPP
instructions for this mode, but the "use moves" strategy works fine.

gcc/ChangeLog:

	* config/gcn/gcn.c (gcn_expand_reduc_scalar): Use move instructions
	for V64DFmode min/max reductions.
2021-01-26 10:23:43 +00:00
Iain Buclaw 5a36cae275 d: Merge upstream dmd 609c3ce2d, phobos 3dd5df686
D front-end changes:

 - Contracts for pre- and postconditions are now implicitly "this"
   const, so that state can no longer be altered in these functions.

 - Inside a constructor scope, assigning to aggregate declaration
   members is done by considering the first assignment as initialization
   and subsequent assignments as modifications of the constructed
   object.  For const/immutable fields the initialization is accepted in
   the constructor but subsequent modifications are not.  However this
   rule did not apply when inside a constructor scope there is a call to
   a different constructor.  This been changed so it is now an error
   when there's a double initialization of immutable fields inside a
   constructor.

Phobos changes:

 - Don't run unit-tests for unsupported clocks in std.datetime.  The
   phobos and phobos_shared tests now add -fversion=Linux_Pre_2639 if
   required.

 - Deprecate public extern(C) bindings for getline and getdelim in
   std.stdio.  The correct module for bindings is core.sys.posix.stdio.

Reviewed-on: https://github.com/dlang/dmd/pull/12153
	     https://github.com/dlang/phobos/pull/7768

gcc/d/ChangeLog:

	* dmd/MERGE: Merge upstream dmd 609c3ce2d.
	* d-compiler.cc (Compiler::loadModule): Rename to ...
	(Compiler::onParseModule): ... this.
	(Compiler::onImport): New function.
	* d-lang.cc (d_parse_file): Remove call to Compiler::loadModule.

libphobos/ChangeLog:

	* src/MERGE: Merge upstream phobos 3dd5df686.
	* testsuite/libphobos.phobos/phobos.exp: Add compiler flag
	-fversion=Linux_Pre_2639 if target is linux_pre_2639.
	* testsuite/libphobos.phobos_shared/phobos_shared.exp: Likewise.
2021-01-26 09:54:57 +01:00
Jakub Jelinek eb77a934ee testsuite: Fix up pr98807.c on i686-linux [PR98807]
The new testcase FAILs on i686-linux with:
gcc/testsuite/gcc.dg/pr98807.c: In function 'foo0':
gcc/testsuite/gcc.dg/pr98807.c:20:1: warning: SSE vector return without SSE enabled changes the ABI [-Wpsabi]
gcc/testsuite/gcc.dg/pr98807.c:19:1: note: the ABI for passing parameters with 16-byte alignment has changed in GCC 4.6
gcc/testsuite/gcc.dg/pr98807.c:19:1: warning: SSE vector argument without SSE enabled changes the ABI [-Wpsabi]
FAIL: gcc.dg/pr98807.c (test for excess errors)

Adding usual testcase treatment for such cases.

2021-01-26  Jakub Jelinek  <jakub@redhat.com>

	PR middle-end/98807
	* gcc.dg/pr98807.c: Add -Wno-psabi -w to dg-options.
2021-01-26 09:33:04 +01:00
Jakub Jelinek 7423731691 dwarf2asm: Fix up -gdwarf-64 for 32-bit targets
For the 32-bit targets the limitations of the object
file format (e.g. 32-bit ELF) will not allow > 2GiB debug info anyway,
and as I've just tested, e.g. on x86_64 with -m32 -gdwarf64 will not work
even on tiny testcases:
as: pr64716.o: unsupported relocation type: 0x1
pr64716.s: Assembler messages:
pr64716.s:6013: Error: cannot represent relocation type BFD_RELOC_64
as: pr64716.o: unsupported relocation type: 0x1
pr64716.s:6015: Error: cannot represent relocation type BFD_RELOC_64
as: pr64716.o: unsupported relocation type: 0x1
pr64716.s:6017: Error: cannot represent relocation type BFD_RELOC_64
So yes, we can either do a sorry, error, or could just avoid 64-bit
relocations (depending on endianity instead of emitting
.quad expression_that_needs_relocation
emit
.long expression_that_needs_relocation, 0
or
.long 0, expression_that_needs_relocation

This patch implements that last option, dunno if we need also configure tests
for that or not, maybe some 32-bit targets use 64-bit ELF and can handle such
relocations.

> 64bit relocs are not required here?  That is, can one with
> dwarf64 choose 32bit forms for select offsets (like could
> dwz exploit this?)?

I guess it depends on whether for 32-bit target and -gdwarf64, when
calling dw2_assemble_integer with non-CONST_INT argument we only
need positive values or might need negative ones too.
Because positive ones can be easily emulated through that
.long expression, 0
or
.long 0, expression
depending on endianity, but I'm afraid there is no way to emit
0 or -1 depending on the sign of expression, when it needs relocations.
Looking through dw2_asm_output_delta calls, at least the vast majority
of the calls seem to guarantee being positive, not 100% sure about
one case in .debug_line views, but I'd hope it is ok too.
In most cases, the deltas are between two labels where the first one
in the arguments is later in the same section than the other one,
or where the second argument is the start of a section or another section
base.

2021-01-26  Jakub Jelinek  <jakub@redhat.com>

	* dwarf2asm.c (dw2_assemble_integer): Handle size twice as large
	as DWARF2_ADDR_SIZE if x is not a scalar int by emitting it as
	two halves, one with x and the other with const0_rtx, ordered
	depending on endianity.
2021-01-26 09:20:23 +01:00
Alexandre Oliva 667c8e3327 skip asan-poisoning of discarded vars
GNAT may create temporaries to hold return values of function calls.
If such a temporary is created as part of a dynamic initializer of a
variable in a unit other than the one being compiled, the initializer
is dropped, including the temporary and its binding block.

Don't issue asan mark calls for such variables, they are gone.


for  gcc/ChangeLog

	* gimplify.c (gimplify_decl_expr): Skip asan marking calls for
	temporaries not seen in binding block, and not about to be
	added as gimple variables.

for  gcc/testsuite/ChangeLog

	* gnat.dg/asan1.adb: New test.
	* gnat.dg/asan1_pkg.ads: New additional source.
2021-01-25 21:45:58 -03:00
GCC Administrator 161e4c0862 Daily bump. 2021-01-26 00:16:34 +00:00
Harald Anlauf a61efd4693 PR fortran/70070 - ICE on initializing character data beyond min/max bound
Check for initialization of substrings beyond bounds in DATA statements.

gcc/fortran/ChangeLog:

	PR fortran/70070
	* data.c (create_character_initializer): Check substring indices
	against bounds.
	(gfc_assign_data_value): Catch error returned from
	create_character_initializer.

gcc/testsuite/ChangeLog:

	PR fortran/70070
	* gfortran.dg/pr70070.f90: New test.
2021-01-25 21:33:53 +01:00
Martin Sebor d6f1cf644c PR c++/98646 - spurious -Wnonnull calling a member on the result of static_cast
gcc/c-family/ChangeLog:

	PR c++/98646
	* c-common.c (check_nonnull_arg): Adjust warning text.

gcc/cp/ChangeLog:

	PR c++/98646
	* cvt.c (cp_fold_convert): Propagate TREE_NO_WARNING.

gcc/ChangeLog:

	PR c++/98646
	* tree-ssa-ccp.c (pass_post_ipa_warn::execute): Adjust warning text.

gcc/testsuite/ChangeLog:

	PR c++/98646
	* g++.dg/warn/Wnonnull5.C: Adjust text of an expected warning.
	* g++.dg/warn/Wnonnull10.C: New test.
	* g++.dg/warn/Wnonnull9.C: New test.
2021-01-25 12:41:28 -07:00
Thomas Koenig 7d54cccad3 Commit test case for PR 96386.
gcc/testsuite/ChangeLog:

	* gfortran.dg/associate_57.f90: New test.
2021-01-25 20:27:15 +01:00
Thomas Koenig a43e0dfb63 Add test case for PR 96843.
gcc/testsuite/ChangeLog:

	PR fortran/96843
	* gfortran.dg/interface_assignment_7.f90: New test.
2021-01-25 20:21:39 +01:00
Kwok Cheung Yeung 0194e2f02d libgomp: Add documentation for omp_fulfill_event runtime function
2021-01-25  Kwok Cheung Yeung  <kcy@codesourcery.com>

	libgomp/
	* libgomp.texi (omp_fulfill_event): New entry.
2021-01-25 09:58:51 -08:00
Martin Liska d9ad3b422f Fix wrong format for fprintf.
gcc/ChangeLog:

	* value-prof.c (get_nth_most_common_value): Use %s instead
	of %qs string.
2021-01-25 17:49:24 +01:00
Jason Merrill 94ff4c9dd9 c++: [[no_unique_address]] in empty base [PR98463]
In this testcase, cxx_eval_store_expression got confused trying to build up
CONSTRUCTORs for initializing a subobject because the subobject is a member
of an empty base.  In C++14 mode and below we don't build FIELD_DECLs for
empty bases, so the CONSTRUCTOR skipped the empty base, and treated the
member as a member of the derived class, which breaks.

Fixed by recognizing this situation and giving up on trying to build a
CONSTRUCTOR for the inner target at that point; since it doesn't have any
data, we don't need to actually store anything.

gcc/cp/ChangeLog:

	PR c++/98463
	* constexpr.c (get_or_insert_ctor_field): Add check.
	(cxx_eval_store_expression): Handle discontinuity of refs.

gcc/testsuite/ChangeLog:

	PR c++/98463
	* g++.dg/cpp2a/no_unique_address8.C: New test.
2021-01-25 10:36:27 -05:00
Tobias Burnus 10c83fb713 gcc/fortran/intrinsic.texi: Fix typos
gcc/fortran/ChangeLog:

	* intrinsic.texi (CO_BROADCAST, CO_MIN, CO_REDUCE, CO_SUM): Fix typos.
2021-01-25 14:43:52 +01:00
Jakub Jelinek fe5cb7f94d configure: Add workaround for buggy binutils 2.35 [PR98811]
binutils since https://sourceware.org/bugzilla/show_bug.cgi?id=25612
changes from March last year until the
https://sourceware.org/pipermail/binutils/2020-August/112684.html
fix in early August emits incorrect .debug_info when assembling files
with --gdwarf-5.  Instead of emitting proper DWARF 5 .debug_info header,
it emits DWARF 4 .debug_info header with 5 as the dwarf version instead of
4.  This results e.g. in libgcc.a (morestack.o) having garbage in its
.debug_info sections and e.g. libbacktrace during pretty much all libgo
tests fails miserably.

The following patch adds a workaround for that, don't set
HAVE_AS_GDWARF_5_DEBUG_FLAG if readelf can't read the .debug_info back.

Built tested on x86_64-linux against both binutils 2.35 (buggy ones) and
latest binutils trunk, the former with the patch now has DWARF 3
.debug_line and DWARF 2 .debug_info in morestack.o, while the latter
as before correct DWARF 5 .debug_line and .debug_info.

2021-01-25  Jakub Jelinek  <jakub@redhat.com>

	PR debug/98811
	* configure.ac (HAVE_AS_GDWARF_5_DEBUG_FLAG): Only define if
	readelf -wi is able to read the emitted .debug_info back.
	* configure: Regenerated.
2021-01-25 14:20:05 +01:00
Martin Liska e05a117dc4 Enable -fprofile-reproducible=parallel-runs for profiledbootstrap.
ChangeLog:

	PR gcov-profile/98739
	* Makefile.in: Enable -fprofile-reproducible=parallel-runs
	for profiledbootstrap.
2021-01-25 13:31:05 +01:00
Martin Liska 5089df534b Restore profile reproducibility.
gcc/ChangeLog:

	PR gcov-profile/98739
	* common.opt: Add missing sign symbol.
	* value-prof.c (get_nth_most_common_value): Restore handling
	of PROFILE_REPRODUCIBILITY_PARALLEL_RUNS and
	PROFILE_REPRODUCIBILITY_MULTITHREADED.

libgcc/ChangeLog:

	PR gcov-profile/98739
	* libgcov-merge.c (__gcov_merge_topn): Mark when merging
	ends with a dropped counter.
	* libgcov.h (gcov_topn_add_value): Add return value.
2021-01-25 13:30:34 +01:00
Richard Biener defc40db9e middle-end/98807 - more vector_element_bits fixes
This simplifies vector_element_bits further, avoiding any mode
dependence and instead relying on boolean vector construction
to populate element precision accordingly.

2021-01-25  Richard Biener  <rguenther@suse.de>

	PR middle-end/98807
	* tree.c (vector_element_bits): Always use precision of
	the element type for boolean vectors.

	* gcc.dg/pr98807.c: New testcase.
2021-01-25 13:18:13 +01:00
Sebastian Huber 0433fc2d7d RTEMS: Fix default linker script
We have to use ENDFILE_SPEC for the default linker script and not
STARTFILE_SPEC, since STARTFILE_SPEC is place before the user provided
library search paths.

gcc/

	* config/rtems.h (STARTFILE_SPEC): Remove qnolinkcmds.
	(ENDFILE_SPEC): Evaluate qnolinkcmds.
2021-01-25 12:31:23 +01:00
Eric Botcazou 5d01fc7c11 Fix internal error on extension with interface at -O2
This is a regression present on the mainline, 10 and 9 branches, in the
form of an internal error with the Ada compiler when a covariant-only
thunk is inlined into its caller.

gcc/ada/
	* gcc-interface/trans.c (make_covariant_thunk): Set the DECL_CONTEXT
	of the parameters and do not set TREE_PUBLIC on the thunk.
	(maybe_make_gnu_thunk): Pass the alias to the covariant thunk.
	* gcc-interface/utils.c (finish_subprog_decl): Set the DECL_CONTEXT
	of the parameters here...
	(begin_subprog_body): ...instead of here.

gcc/testsuite/
	* gnat.dg/thunk2.adb, gnat.dg/thunk2.ads: New test.
	* gnat.dg/thunk2_pkg.ads: New helper.
2021-01-25 11:30:00 +01:00
Paul Thomas c6b0e33feb Fortran: Fix deferred character lengths in array constructors [PR98517].
2021-01-25  Steve Kargl  <kargl@gcc.gnu.org>

gcc/fortran
	PR fortran/98517
	* resolve.c (resolve_charlen): Check that length expression is
	present before testing for scalar/integer..

gcc/testsuite/
	PR fortran/98517
	* gfortran.dg/charlen_18.f90 : New test.
2021-01-25 10:27:51 +00:00
Sebastian Huber 28229916e1 RTEMS: Fix GCC specification
The use of -nostdlib and -nodefaultlibs disables the processing of
LIB_SPEC (%L) as specified by LINK_COMMAND_SPEC and thus disables the
default linker script for RTEMS.  Move the linker script to
STARTFILE_SPEC which is controlled by -nostdlib and -nostartfiles.  This
fits better since the linker script defines the platform start file
provided by the board support package in RTEMS.

gcc/

	* config/rtems.h (STARTFILE_SPEC): Remove nostdlib and
	nostartfiles handling since this is already done by
	LINK_COMMAND_SPEC.  Evaluate qnolinkcmds.
	(ENDFILE_SPEC): Remove nostdlib and nostartfiles handling since this
	is already done by LINK_COMMAND_SPEC.
	(LIB_SPECS): Remove nostdlib and nodefaultlibs handling since
	this is already done by LINK_COMMAND_SPEC.  Remove qnolinkcmds
	evaluation.
2021-01-25 10:33:52 +01:00
Jakub Jelinek b7a0507ad9 fold: Fix up strn{case,}cmp folding [PR98771]
As mentioned in the PR, the compiler behaves differently during strncmp
and strncasecmp folding between 32-bit and 64-bit hosts targeting 64-bit
target.  I think that is highly undesirable.

The culprit is the host_size_t_cst_p predicate that is used by
fold_const_call, which punts if the target size_t constants don't fit into
host size_t.  This patch gets rid of that behavior, instead it punts the
same when it doesn't fit into uhwi.

The predicate was used for strncmp and strncasecmp folding and for bcmp, memcmp and
memchr folding.
The constant is in all cases compared to 0, we can do that whether it fits
into size_t or unsigned HOST_WIDE_INT, then it is used in s2 <= s0 or
s2 <= s1 comparisons where s0 and s1 already have uhwi type and represent
the sizes of the objects.
The important difference is for strn{,case}cmp folding, we pass that s2
value as the last argument to the host functions comparing the c_getstr
results.  If s2 fits into size_t, then my patch makes no difference,
but if it is larger, we know the 2 c_getstr objects need to fit into the
host address space, so larger s2 should just act essentially as strcmp
or strcasecmp; as none of those objects can occupy 100% of the address
space, using MIN (SIZE_MAX, s2) achieves that.

2021-01-25  Jakub Jelinek  <jakub@redhat.com>

	PR testsuite/98771
	* fold-const-call.c (host_size_t_cst_p): Renamed to ...
	(size_t_cst_p): ... this.  Check and store unsigned HOST_WIDE_INT
	value rather than host size_t.
	(fold_const_call): Change type of s2 from size_t to
	unsigned HOST_WIDE_INT.  Use size_t_cst_p instead of
	host_size_t_cst_p.  For strncmp calls, pass MIN (s2, SIZE_MAX)
	instead of s2 as last argument.
2021-01-25 10:03:40 +01:00
Tamar Christina 389b67feac Arm: Add NEON and MVE complex mul, mla and mls patterns.
This adds implementation for the optabs for complex operations.  With this the
following C code:

  void g (float complex a[restrict N], float complex b[restrict N],
	  float complex c[restrict N])
  {
    for (int i=0; i < N; i++)
      c[i] =  a[i] * b[i];
  }

generates

NEON:

g:
        vmov.f32        q11, #0.0  @ v4sf
        add     r3, r2, #1600
.L2:
        vmov    q8, q11  @ v4sf
        vld1.32 {q10}, [r1]!
        vld1.32 {q9}, [r0]!
        vcmla.f32       q8, q9, q10, #0
        vcmla.f32       q8, q9, q10, #90
        vst1.32 {q8}, [r2]!
        cmp     r3, r2
        bne     .L2
        bx      lr

MVE:

g:
        push    {lr}
        mov     lr, #100
        dls     lr, lr
.L2:
        vldrw.32        q1, [r1], #16
        vldrw.32        q2, [r0], #16
        vcmul.f32       q3, q2, q1, #0
        vcmla.f32       q3, q2, q1, #90
        vstrw.32        q3, [r2], #16
        le      lr, .L2
        ldr     pc, [sp], #4

instead of

g:
        add     r3, r2, #1600
.L2:
        vld2.32 {d20-d23}, [r0]!
        vld2.32 {d16-d19}, [r1]!
        vmul.f32        q14, q11, q9
        vmul.f32        q15, q11, q8
        vneg.f32        q14, q14
        vfma.f32        q15, q10, q9
        vfma.f32        q14, q10, q8
        vmov    q13, q15  @ v4sf
        vmov    q12, q14  @ v4sf
        vst2.32 {d24-d27}, [r2]!
        cmp     r3, r2
        bne     .L2
        bx      lr

and

g:
        add     r3, r2, #1600
.L2:
        vld2.32 {d20-d23}, [r0]!
        vld2.32 {d16-d19}, [r1]!
        vmul.f32        q15, q10, q8
        vmul.f32        q14, q10, q9
        vmls.f32        q15, q11, q9
        vmla.f32        q14, q11, q8
        vmov    q12, q15  @ v4sf
        vmov    q13, q14  @ v4sf
        vst2.32 {d24-d27}, [r2]!
        cmp     r3, r2
        bne     .L2
        bx      lr

respectively.

gcc/ChangeLog:

	* config/arm/iterators.md (rotsplit1, rotsplit2, conj_op, fcmac1,
	VCMLA_OP, VCMUL_OP): New.
	* config/arm/mve.md (mve_vcmlaq<mve_rot><mode>): Support vec_dup 0.
	* config/arm/neon.md (cmul<conj_op><mode>3): New.
	* config/arm/unspecs.md (UNSPEC_VCMLA_CONJ, UNSPEC_VCMLA180_CONJ,
	UNSPEC_VCMUL_CONJ): New.
	* config/arm/vec-common.md (cmul<conj_op><mode>3, arm_vcmla<rot><mode>,
	cml<fcmac1><conj_op><mode>4): New.
2021-01-25 08:56:37 +00:00
GCC Administrator 02551aa999 Daily bump. 2021-01-25 00:16:24 +00:00
GCC Administrator 6b1633378b Daily bump. 2021-01-24 00:16:16 +00:00
Iain Buclaw 81f928ec8e libphobos: Fix executables segfault on mipsel architecture
The dynamic section on MIPS is read-only, but this was not properly
handled in the runtime library.  The segfault only occurred for programs
that linked to the shared libphobos library.

libphobos/ChangeLog:

	PR d/98806
	* libdruntime/gcc/sections/elf_shared.d (MIPS_Any): Declare version
	for MIPS32 and MIPS64.
	(getDependencies): Adjust dlpi_addr on MIPS_Any.
2021-01-24 00:20:25 +01:00
Anthony Sharp 7e0f147a29 c++: private inheritance access diagnostics fix [PR17314]
This patch fixes PR17314. Previously, when class C attempted
to access member a declared in class A through class B, where class B
privately inherits from A and class C inherits from B, GCC would correctly
report an access violation, but would erroneously report that the reason was
because a was "protected", when in fact, from the point of view of class C,
it was really "private". This patch updates the diagnostics code to generate
more correct errors in cases of failed inheritance such as these.

The reason this bug happened was because GCC was examining the
declared access of decl, instead of looking at it in the
context of class inheritance.

gcc/cp/ChangeLog:

2021-01-21  Anthony Sharp  <anthonysharp15@gmail.com>

	* call.c (complain_about_access): Altered function.
	* cp-tree.h (complain_about_access): Changed parameters of function.
	(get_parent_with_private_access): Declared new function.
	* search.c (get_parent_with_private_access): Defined new function.
	* semantics.c (enforce_access): Modified function.
	* typeck.c (complain_about_unrecognized_member): Updated function
	arguments in complain_about_access.

gcc/testsuite/ChangeLog:

2021-01-21  Anthony Sharp  <anthonysharp15@gmail.com>

	* g++.dg/lookup/scoped1.C: Modified testcase to run successfully
	with changes.
	* g++.dg/tc1/dr142.C: Same as above.
	* g++.dg/tc1/dr52.C: Same as above.
	* g++.old-deja/g++.brendan/visibility6.C: Same as above.
	* g++.old-deja/g++.brendan/visibility8.C: Same as above.
	* g++.old-deja/g++.jason/access8.C: Same as above.
	* g++.old-deja/g++.law/access4.C: Same as above.
	* g++.old-deja/g++.law/visibility12.C: Same as above.
	* g++.old-deja/g++.law/visibility4.C: Same as above.
	* g++.old-deja/g++.law/visibility8.C: Same as above.
	* g++.old-deja/g++.other/access4.C: Same as above.
2021-01-23 17:48:31 -05:00
Jakub Jelinek c63f091db8 rs6000: Fix up __m64 typedef in mmintrin.h [PR97301]
The x86 __m64 type is defined as:
/* The Intel API is flexible enough that we must allow aliasing with other
   vector types, and their scalar components.  */
typedef int __m64 __attribute__ ((__vector_size__ (8), __may_alias__));
and so matches the comment above it in that reads and stores through
pointers to __m64 can alias anything.
But in the rs6000 headers that is the case only for __m128, but not __m64.

The following patch adds that attribute, which fixes the
FAIL: gcc.target/powerpc/sse-movhps-1.c execution test
FAIL: gcc.target/powerpc/sse-movlps-1.c execution test
regressions that appeared when Honza improved ipa-modref.

2021-01-23  Jakub Jelinek  <jakub@redhat.com>

	PR testsuite/97301
	* config/rs6000/mmintrin.h (__m64): Add __may_alias__ attribute.
2021-01-23 09:41:58 +01:00
Patrick Palka a8cef3cba6 c++: 'this' injection and static member functions [PR97399]
In the testcase pr97399.C below, finish_qualified_id_expr at parse time
adds an implicit 'this->' to the expression tmp::integral<T> (because
it's type-dependent, and also current_class_ptr is set at this point)
within the trailing return type.  Later when substituting into this
trailing return type we crash because we can't resolve the 'this', since
tsubst_function_type does inject_this_parm only for non-static member
functions, which tmp::func is not.

This patch fixes this issue by removing the type-dependence check
in finish_qualified_id_expr added by r9-5972, and instead relaxes
shared_member_p to handle dependent USING_DECLs:

> I think I was wrong in my assertion around Alex's patch that
> shared_member_p should abort on a dependent USING_DECL; it now seems
> appropriate for it to return false if we don't know, we just need to
> adjust the comment to say that.

And when parsing a friend function declaration, we shouldn't be setting
current_class_ptr at all, so this patch additionally suppresses
inject_this_parm in this case.

Finally, the self-contained change to cp_parser_init_declarator is so
that we properly communicate static-ness to cp_parser_direct_declarator
when parsing a member function template.  This lets us reject the
explicit use of 'this' in the testcase this2.C below.

gcc/cp/ChangeLog:

	PR c++/97399
	* cp-tree.h (shared_member_p): Adjust declaration.
	* parser.c (cp_parser_init_declarator): If the storage class
	specifier is sc_static, pass true for static_p to
	cp_parser_declarator.
	(cp_parser_direct_declarator): Don't do inject_this_parm when
	the declarator is a friend.
	* search.c (shared_member_p): Change return type to bool and
	adjust function body accordingly.  Return false for a dependent
	USING_DECL instead of aborting.
	* semantics.c (finish_qualified_id_expr): Rely on shared_member_p
	even when type-dependent.

gcc/testsuite/ChangeLog:

	PR c++/88548
	PR c++/97399
	* g++.dg/cpp0x/this2.C: New test.
	* g++.dg/template/pr97399.C: New test.
2021-01-23 00:24:17 -05:00
David Edelsohn eb9883c131 testsuite: fix gcc.target/powerpc ilp32 failures
The recent vec insert code generation changes were not reflected in the
expected output for ilp32 targets.  This patch updates the expected
instructions and counts.

gcc/testsuite/ChangeLog:

	* gcc.target/powerpc/fold-vec-insert-char-p9.c: Adjust ilp32.
	* gcc.target/powerpc/fold-vec-insert-float-p9.c: Same.
	* gcc.target/powerpc/fold-vec-insert-int-p9.c: Same.
	* gcc.target/powerpc/fold-vec-insert-longlong.c: Same.
	* gcc.target/powerpc/fold-vec-insert-short-p9.c: Same.
	* gcc.target/powerpc/pr79251.p9.c: Same.
2021-01-22 19:56:14 -05:00
GCC Administrator 8502e23d1f Daily bump. 2021-01-23 00:16:32 +00:00
Jonathan Wright 16b7b8a32d aarch64: Use RTL builtins for integer mla intrinsics
Rewrite integer mla Neon intrinsics to use RTL builtins rather than
inline assembly code, allowing for better scheduling and optimization.

gcc/Changelog:

2021-01-14  Jonathan Wright  <jonathan.wright@arm.com>

	* config/aarch64/aarch64-simd-builtins.def: Add mla builtin
	generator macro.
	* config/aarch64/arm_neon.h (vmla_s8): Use RTL builtin rather
	than asm.
	(vmla_s16): Likewise.
	(vmla_s32): Likewise.
	(vmla_u8): Likewise.
	(vmla_u16): Likewise.
	(vmla_u32): Likewise.
	(vmlaq_s8): Likewise.
	(vmlaq_s16): Likewise.
	(vmlaq_s32): Likewise.
	(vmlaq_u8): Likewise.
	(vmlaq_u16): Likewise.
	(vmlaq_u32): Likewise.
2021-01-22 23:18:11 +00:00
Marek Polacek 89100826ac c++: ICE with noexcept in class in member function [PR96623]
I discovered very strange code in inject_parm_decls:

   if (args && is_this_parameter (args))
     {
       gcc_checking_assert (current_class_ptr == NULL_TREE);
       current_class_ptr = NULL_TREE;

We are tripping up on the assert because when we call inject_parm_decls,
current_class_ptr is set to 'A'.  It was set by inject_this_parameter
after we've parsed the parameter-declaration-clause of the member
function foo.  It seems correct to set ccp/ccr to A::B when we're
late parsing the noexcept-specifiers of bar* functions in B, so that
this-> does the right thing.  Since inject_parm_decls doesn't expect
to see non-null ccp/ccr, reset it before calling inject_parm_decls.

gcc/cp/ChangeLog:

	PR c++/96623
	* parser.c (inject_parm_decls): Remove a redundant assignment.
	(cp_parser_class_specifier_1): Clear current_class_{ptr,ref}
	before calling inject_parm_decls.

gcc/testsuite/ChangeLog:

	PR c++/96623
	* g++.dg/cpp0x/noexcept64.C: New test.
2021-01-22 17:55:06 -05:00
David Edelsohn ab8cde87ca testsuite: Enable spbp.C on AIX.
This testcase was disabled in the distant past when AIX did not have
support for DWARF and the testcase explicitly invokes DWARF debugging.
This patch re-enables the testcase.

gcc/testsuite/ChangeLog:

	* g++.dg/eh/spbp.C: Remove skip on AIX.
2021-01-22 17:38:50 -05:00
David Malcolm 9cead79073 doc: ensure GCC_EXTRA_DIAGNOSTIC_OUTPUT gets an HTML anchor
This is referenced by my recent release notes changes for GCC 11:
  https://gcc.gnu.org/pipermail/gcc-patches/2021-January/564164.html

gcc/ChangeLog:
	* doc/invoke.texi (GCC_EXTRA_DIAGNOSTIC_OUTPUT): Add @findex
	directive.
2021-01-22 17:07:30 -05:00
Jakub Jelinek 70ab52b8ca testsuite: Fix a typo - UINON_TYPE to UNION_TYPE - in gcc.target/powerpc
Spotted while fixing the rs6000 aliasing issue.

2021-01-22  Jakub Jelinek  <jakub@redhat.com>

	* gcc.target/powerpc/m128-check.h (CHECK_EXP, CHECK_FP_EXP): Fix a
	typo, UINON_TYPE to UNION_TYPE.
2021-01-22 22:55:44 +01:00
Jakub Jelinek b30e19b517 testsuite: Fix a typo - UINON_TYPE to UNION_TYPE - in gcc.target/i386
Spotted while fixing the rs6000 aliasing issue.

2021-01-22  Jakub Jelinek  <jakub@redhat.com>

	* gcc.target/i386/m128-check.h (CHECK_EXP, CHECK_FP_EXP): Fix a typo,
	UINON_TYPE to UNION_TYPE.
	* gcc.target/i386/m256-check.h (CHECK_FP_EXP): Likewise.
	* gcc.target/i386/m512-check.h (CHECK_ROUGH_EXP): Likewise.
2021-01-22 22:51:03 +01:00
Jakub Jelinek d08677c11d testsuite: Fix sse2-andnpd-1.c and sse-andnps-1.c testscases on powerpc
On Mon, Sep 21, 2020 at 10:12:20AM +0200, Richard Biener wrote:
> On Mon, 21 Sep 2020, Jan Hubicka wrote:
> > these testcases now fails because they contains an invalid type puning
> > that happens via const VALUE_TYPE *v pointer. Since the check function
> > is noinline, modref is needed to trigger the wrong code.
> > I think it is easiest to fix it by no-strict-aliasing.
> >
> > Regtested x86_64-linux, OK?
>
> OK.
>
> >     * gcc.target/i386/m128-check.h: Add no-strict aliasing to
> >     CHECK_EXP macro.
> >
> > diff --git a/gcc/testsuite/gcc.target/i386/m128-check.h b/gcc/testsuite/gcc.target/i386/m128-check.h
> > index 48b23328539..6f414b07be7 100644
> > --- a/gcc/testsuite/gcc.target/i386/m128-check.h
> > +++ b/gcc/testsuite/gcc.target/i386/m128-check.h
> > @@ -78,6 +78,7 @@ typedef union
> >
> >  #define CHECK_EXP(UINON_TYPE, VALUE_TYPE, FMT)             \
> >  static int                                         \
> > +__attribute__((optimize ("no-strict-aliasing")))   \
> >  __attribute__((noinline, unused))                  \
> >  check_##UINON_TYPE (UINON_TYPE u, const VALUE_TYPE *v)     \
> >  {                                                  \

On powerpc64le the tests suffer from the exact same issue.

2021-01-22  Jakub Jelinek  <jakub@redhat.com>

	* gcc.target/powerpc/m128-check.h (check_##UINON_TYPE): Add
	optimize ("no-strict-aliasing") attribute.
2021-01-22 22:38:31 +01:00
Jakub Jelinek b485fa167e dwarf2out: Always emit required 0 entries for DWARF 5 in *.debug_line [PR98796]
When GCC is emitting .debug_line or .gnu.debuglto_.debug_line section by
itself (happens either with too old or non-GNU assembler, with
-gno-as-loc-support or with -flto) on empty translation units, it violates
the DWARF 5 requirements.
The standard says:
"The first entry is the current directory of the compilation."
and a few lines later:
"The first entry in the sequence is the primary source file whose file name
exactly matches that given in the DW_AT_name attribute in the compilation
unit debugging information entry."
GCC emits 4 zeros (directory entry format count, directories count,
filename entry format count and filename count), which would be ok if the
spec said The first entry may be rather than is.

I had a brief look at whether I could just fall through into the rest of the
function, but there are too many assumptions that there is at least one
normal file that it can't be done that way easily.

So this patch instead extends the early out code to emit the required
minimum, which is 15 bytes more than we used to emit before.

2021-01-22  Jakub Jelinek  <jakub@redhat.com>

	PR debug/98796
	* dwarf2out.c (output_file_names): For -gdwarf-5, if there are no
	filenames to emit, still emit the required 0 index directory and
	filename entries that match DW_AT_comp_dir and DW_AT_name of the
	compilation unit.
2021-01-22 22:37:36 +01:00
Jonathan Wright 32a93eac7a MAINTAINERS: Add myself for write after approval
ChangeLog:

2021-01-22  Jonathan Wright  <jonathan.wright@arm.com>

	* MAINTAINERS (Write After Approval): Add myself.
2021-01-22 19:11:21 +00:00
Jason Merrill 90cbc76900 c++: Fix base copy elision thinko [PR98744]
As Jakub points out in the PR, I was mixing up
DECL_HAS_IN_CHARGE_PARM_P (which is true for the abstract maybe-in-charge
constructor) and DECL_HAS_VTT_PARM_P (which is true for a base constructor
that needs to handle virtual bases).

gcc/cp/ChangeLog:

	PR c++/98744
	* call.c (make_base_init_ok): Use DECL_HAS_VTT_PARM_P.

gcc/testsuite/ChangeLog:

	PR c++/98744
	* g++.dg/init/elide7.C: New test.
2021-01-22 13:09:00 -05:00
Jakub Jelinek a9ed18295b c++: Fix up ubsan false positives on references [PR95693]
Alex' 2 years old change to build_zero_init_1 to return NULL pointer with
reference type for references breaks the sanitizers, the assignment of NULL
to a reference typed member is then instrumented before it is overwritten
with a non-NULL address later on.
That change has been done to fix error recovery ICE during
process_init_constructor_record, where we:
          if (TYPE_REF_P (fldtype))
            {
              if (complain & tf_error)
                error ("member %qD is uninitialized reference", field);
              else
                return PICFLAG_ERRONEOUS;
            }
a few lines earlier, but then continue and ICE when build_zero_init returns
NULL.

The following patch reverts the build_zero_init_1 change and instead creates
the NULL with reference type constants during the error recovery.

The pr84593.C testcase Alex' change was fixing still works as before.

2021-01-22  Jakub Jelinek  <jakub@redhat.com>

	PR sanitizer/95693
	* init.c (build_zero_init_1): Revert the 2018-03-06 change to
	return build_zero_cst for reference types.
	* typeck2.c (process_init_constructor_record): Instead call
	build_zero_cst here during error recovery instead of build_zero_init.

	* g++.dg/ubsan/pr95693.C: New test.
2021-01-22 19:04:55 +01:00
Marek Polacek 25fc4d01a8 c++: ICE when mangling operator name [PR98545]
r11-6301 added some asserts in mangle.c, and now we trip over one of
them.  In particular, it's the one asserting that we didn't get
IDENTIFIER_ANY_OP_P when mangling an expression with a dependent name.

As this testcase shows, it's possible to get that, so turn the assert
into an if and write "on".  That changes the mangling in the following
way:

With this patch:

$ c++filt _ZN1i1hIJ1adS1_EEEDTcldtdefpTonclspcvT__EEEDpS2_
decltype (((*this).(operator()))((a)(), (double)(), (a)())) i::h<a, double, a>(a, double, a)

G++10:
$ c++filt _ZN1i1hIJ1adS1_EEEDTcldtdefpTclspcvT__EEEDpS2_
decltype (((*this).(operator()))((a)(), (double)(), (a)())) i::h<a, double, a>(a, double, a)

clang++/icc:
$ c++filt _ZN1i1hIJ1adS1_EEEDTclonclspcvT__EEEDpS2_
decltype ((operator())((a)(), (double)(), (a)())) i::h<a, double, a>(a, double, a)

This is now tracked in PR98756.

gcc/cp/ChangeLog:

	PR c++/98545
	* mangle.c (write_member_name): Emit abi_warn_or_compat_version_crosses
	warnings regardless of abi_version_at_least.
	(write_expression): When the expression is a dependent name
	and an operator name, write "on" before writing its name.

gcc/ChangeLog:

	PR c++/98545
	* doc/invoke.texi: Update C++ ABI Version 15 description.

gcc/testsuite/ChangeLog:

	PR c++/98545
	* g++.dg/abi/mangle76.C: New test.
2021-01-22 13:02:23 -05:00
Paul Thomas bf8ee9e4ee Fortran: Fix for class functions as associated target [PR98565].
2021-01-22  Paul Thomas  <pault@gcc.gnu.org>

gcc/fortran
	PR fortran/98565
	* trans-intrinsic.c (gfc_conv_associated): Do not add a _data
	component for scalar class function targets. Instead, fix the
	function result and access the _data from that.

gcc/testsuite/
	PR fortran/98565
	* gfortran.dg/associated_target_7.f90 : New test.
2021-01-22 17:11:32 +00:00
Martin Jambor d7e681fc3a Testcase for old PR 47059
I stumbled across PR 47059 from 2010 which has been addressed by
store-merging.  I am going to close it but would like to add its
testcase too.

gcc/testsuite/ChangeLog:

2021-01-08  Martin Jambor  <mjambor@suse.cz>

	PR tree-optimization/47059
	* gcc.dg/tree-ssa/pr47059.c: New test.
2021-01-22 18:09:38 +01:00