When we have -fstack-limit-symbol with sysv we can end up with a non-
existing instruction (you cannot add an immediate to register 0). Fix
this by using register 11 instead. It might be used for something else
already though, so save and restore its value around this. In
optimizing compiles these extra moves are usually removed again: the
restore by cprop_hardreg, and then the save by rtl_dce.
PR target/91289
* config/rs6000/rs6000-logue.c (rs6000_emit_allocate_stack): Don't add
an immediate to r0; use r11 instead. Save and restore r11 to r0 around
this.
From-SVN: r277472
All of these special member functions do exactly what the compiler would
do anyway. By defining them as defaulted for C++11 and later we prevent
move constructors and move assignment operators being defined (which is
consistent with the previous semantics).
Also move default init of the input_iterator_wrapper members from the
derived constructor to the protected base constructor.
* testsuite/util/testsuite_iterators.h (output_iterator_wrapper)
(input_iterator_wrapper, forward_iterator_wrapper)
bidirectional_iterator_wrapper, random_access_iterator_wrapper): Remove
user-provided copy constructors and copy assignment operators so they
are defined implicitly.
(input_iterator_wrapper): Initialize members in default constructor.
(forward_iterator_wrapper): Remove assignments to members of base.
From-SVN: r277459
The new constexpr destructor on std::allocator breaks compilation with
Clang in C++2a mode. This only makes it constexpr if the compiler
supports the P0784R7 features.
* include/bits/allocator.h: Check __cpp_constexpr_dynamic_alloc
before making the std::allocator destructor constexpr.
* testsuite/20_util/allocator/requirements/constexpr.cc: New test.
From-SVN: r277458
2019-10-25 Cesar Philippidis <cesar@codesourcery.com>
Tobias Burnus <tobias@codesourcery.com>
gcc/fortran/
* openmp.c (gfc_match_omp_map_clause): Add and pass allow_commons
argument.
(gfc_match_omp_clauses): Update calls to permit common blocks for
OpenACC's copy/copyin/copyout, create/delete, host,
pcopy/pcopy_in/pcopy_out, present_or_copy, present_or_copy_in,
present_or_copy_out, present_or_create and self.
gcc/
* gimplify.c (oacc_default_clause): Privatize fortran common blocks.
(omp_notice_variable): Defer the expansion of DECL_VALUE_EXPR for
common block decls.
gcc/testsuite/
* gfortran.dg/goacc/common-block-1.f90: New test.
* gfortran.dg/goacc/common-block-2.f90: New test.
* gfortran.dg/goacc/common-block-3.f90: New test.
libgomp/
* testsuite/libgomp.oacc-fortran/common-block-1.f90: New test.
* testsuite/libgomp.oacc-fortran/common-block-2.f90: New test.
* testsuite/libgomp.oacc-fortran/common-block-3.f90: New test.
Reviewed-by: Thomas Schwinge <thomas@codesourcery.com>
Co-Authored-By: Tobias Burnus <tobias@codesourcery.com>
From-SVN: r277451
This fixes a regression when using Clang.
* include/bits/range_cmp.h: Check __cpp_lib_concepts before defining
concepts. Fix comment.
From-SVN: r277449
2019-10-25 Richard Biener <rguenther@suse.de>
PR tree-optimization/92222
* tree-vect-slp.c (_slp_oprnd_info::first_pattern): Remove.
(_slp_oprnd_info::second_pattern): Likewise.
(_slp_oprnd_info::any_pattern): New.
(vect_create_oprnd_info): Adjust.
(vect_get_and_check_slp_defs): Compute whether any stmt is
in a pattern.
(vect_build_slp_tree_2): Avoid building up a node from scalars
if any of the operand defs, not just the first, is in a pattern.
* gcc.dg/torture/pr92222.c: New testcase.
From-SVN: r277448
2019-10-25 Richard Biener <rguenther@suse.de>
* tree-vect-slp.c (vect_get_and_check_slp_defs): Only fail
swapping if we actually have to modify the IL on a shared stmt.
(vect_build_slp_tree_2): Never fail swapping on shared stmts
because we no longer modify the IL.
From-SVN: r277446
Unwanted unrolling meant that we had more single-precision FADDAs
than expected.
2019-10-25 Richard Sandiford <richard.sandiford@arm.com>
gcc/testsuite/
* gcc.target/aarch64/sve/reduc_strict_3.c (double_reduc1): Prevent
the loop from being unrolled.
From-SVN: r277442
Recent target-independent patches mean that several SVE tests
now produce the code that we'd originally wanted them to produce.
Really nice to see :-)
This patch therefore updates the expected baseline, so that hopefully
we don't regress from this point in future.
2019-10-25 Richard Sandiford <richard.sandiford@arm.com>
gcc/testsuite/
* gcc.target/aarch64/sve/loop_add_5.c: Remove XFAILs for tests
that now pass.
* gcc.target/aarch64/sve/reduc_1.c: Likewise.
* gcc.target/aarch64/sve/reduc_2.c: Likewise.
* gcc.target/aarch64/sve/reduc_5.c: Likewise.
* gcc.target/aarch64/sve/reduc_8.c: Likewise.
* gcc.target/aarch64/sve/slp_13.c: Likewise.
* gcc.target/aarch64/sve/slp_5.c: Likewise. Update expected
WHILELO counts.
* gcc.target/aarch64/sve/slp_7.c: Likewise.
From-SVN: r277441
Now that vectorizable_operation vectorises most loop stmts involved
in a reduction, it needs to be aware of reductions in fully-masked loops.
The LOOP_VINFO_CAN_FULLY_MASK_P parts of vectorizable_reduction now only
apply to cases that use vect_transform_reduction.
This new way of doing things is definitely an improvement for SVE though,
since it means we can lift the old restriction of not using fully-masked
loops for reduction chains.
2019-10-25 Richard Sandiford <richard.sandiford@arm.com>
gcc/
* tree-vect-loop.c (vectorizable_reduction): Restrict the
LOOP_VINFO_CAN_FULLY_MASK_P handling to cases that will be
handled by vect_transform_reduction. Allow fully-masked loops
to be used with reduction chains.
* tree-vect-stmts.c (vectorizable_operation): Handle reduction
operations in fully-masked loops.
(vectorizable_condition): Reject EXTRACT_LAST_REDUCTION
operations in fully-masked loops.
gcc/testsuite/
* gcc.dg/vect/pr65947-1.c: No longer expect doubled dump lines
for FOLD_EXTRACT_LAST reductions.
* gcc.dg/vect/pr65947-2.c: Likewise.
* gcc.dg/vect/pr65947-3.c: Likewise.
* gcc.dg/vect/pr65947-4.c: Likewise.
* gcc.dg/vect/pr65947-5.c: Likewise.
* gcc.dg/vect/pr65947-6.c: Likewise.
* gcc.dg/vect/pr65947-9.c: Likewise.
* gcc.dg/vect/pr65947-10.c: Likewise.
* gcc.dg/vect/pr65947-12.c: Likewise.
* gcc.dg/vect/pr65947-13.c: Likewise.
* gcc.dg/vect/pr65947-14.c: Likewise.
* gcc.dg/vect/pr80631-1.c: Likewise.
* gcc.dg/vect/pr80631-2.c: Likewise.
* gcc.dg/vect/vect-cond-reduc-3.c: Likewise.
* gcc.dg/vect/vect-cond-reduc-4.c: Likewise.
From-SVN: r277438
2019-10-25 Richard Biener <rguenther@suse.de>
* tree-vect-loop.c (vectorizable_reduction): Verify
STMT_VINFO_REDUC_IDX on the to be vectorized stmts is set up
correctly.
* tree-vect-patterns.c (vect_mark_pattern_stmts): Transfer
STMT_VINFO_REDUC_IDX from the original stmts to the pattern
stmts.
From-SVN: r277437
We already had those in fact, just under other names. Use the standard
names so that the vectorizer can use it.
* config/rs6000/altivec.md (altivec_vavgu<VI_char>): Rename to...
(uavg<mode>3_ceil): ... This.
(altivec_vavgs<VI_char>): Rename to...
(avg<mode>3_ceil): ... This.
* config/rs6000/rs6000-builtin.def (VAVGUB, VAVGSB, VAVGUH, VAVGSH,
VAVGUW, VAVGSW): Adjust.
From-SVN: r277421
https://gcc.gnu.org/ml/gcc-patches/2019-10/msg01761.html
* pt.c (reduce_template_parm_level): Attach the new TPI to the new
DECL.
(convert_generic_types_to_packs): Pass the copied type to
reduce_template_parm_level.
From-SVN: r277416
The recent C++20 changes to remove the std::allocator<void> explicit
specialization and the destructor in the std::allocator primary template
change the result of some is_trivially_xxx type traits. To avoid those
changes, this patch restores the explicit specialization and the
destructor.
In order to meet the C++20 requirements the std::allocator<void>
explicit specialization must provide the same interface as the primary
template (except for the unusable allocate and deallocate member
functions) and the destructor in the primary template must be constexpr.
* include/bits/allocator.h (allocator<void>): Restore the explicit
specialization for C++20, but make its API consistent with the primary
template.
(allocator::~allocator()): Restore the destructor for C++20, but make
it constexpr.
* testsuite/20_util/allocator/rebind_c++20.cc: Check allocator<void>.
* testsuite/20_util/allocator/requirements/typedefs_c++20.cc: Likewise.
* testsuite/20_util/allocator/void.cc: Check that constructors and
destructors are trivial. Check for converting constructor in C++20.
* testsuite/ext/malloc_allocator/variadic_construct.cc: Simplify
dejagnu target selector.
* testsuite/ext/new_allocator/variadic_construct.cc: Likewise.
From-SVN: r277410
Power and IBM Z require a function prototype if a vector argument is
passed. Complete the prototype of k to prevent errors from being
triggered on these platforms
gcc/testsuite/ChangeLog:
2019-10-24 Andreas Krebbel <krebbel@linux.ibm.com>
* gcc.dg/ipa/ipa-sra-19.c: Remove dg-skip-if. Add argument type to
prototype of k.
From-SVN: r277409
2019-10-24 Martin Liska <mliska@suse.cz>
* symbol-summary.h (gt_pch_nx): Mark all functions
with gcc_unreachable as we do not expect to be called.
From-SVN: r277408
2019-10-24 Richard Biener <rguenther@suse.de>
* tree-vect-slp.c (vect_get_and_check_slp_defs): For reduction
chains try harder with operand swapping and instead of
putting a shifted chain into the reduction operands put
a repetition of the final reduction op there as if we'd
reassociate the expression.
* gcc.dg/vect/slp-reduc-10a.c: New testcase.
* gcc.dg/vect/slp-reduc-10b.c: Likewise.
* gcc.dg/vect/slp-reduc-10c.c: Likewise.
* gcc.dg/vect/slp-reduc-10d.c: Likewise.
* gcc.dg/vect/slp-reduc-10e.c: Likewise.
From-SVN: r277406
There is no need to store and pass around the allocator object when it's
an instance of std::allocator. Define a partial specialization of
std::use_future_t and the corresponding completion token so that no
allocator is stored. Overload the completion handler constructor to not
expect an allocator to be stored.
* include/experimental/executor (__use_future_ct, use_future_t):
Define partial specializations for std::allocator.
(__use_future_ch): Overload constructor for completion tokens using
std::allocator.
From-SVN: r277404
gcc/ChangeLog:
2019-10-24 Jozef Lawrynowicz <jozef.l@mittosystems.com>
* config/msp430/constraints.md: Allow post_inc for "Ya" constraint.
* config/msp430/msp430.md (430x_shift_left): Use RLAM when the constant
shift amount is between 1 and 4.
(430x_arithmetic_shift_right): Use RRAM when the constant shift amount
is between 1 and 4.
gcc/testsuite/ChangeLog:
2019-10-24 Jozef Lawrynowicz <jozef.l@mittosystems.com>
* gcc.target/msp430/emulate-slli.c: Skip for -mcpu=msp430.
Add shift by a constant 5 bits.
Update scan-assembler directives.
* gcc.target/msp430/emulate-srai.c: Likewise.
* gcc.target/msp430/emulate-srli.c: Skip for -mcpu=msp430.
From-SVN: r277394
2019-10-24 Richard Biener <rguenther@suse.de>
PR tree-optimization/92205
* tree-vect-loop.c (vectorizable_reduction): Restrict
search for alternate vectype_in to lane-reducing patterns
we support.
* gcc.dg/vect/pr92205.c: New testcase.
From-SVN: r277375
The implementation is already complete but this updates the docs and
adds tests for the feature test macro.
* doc/xml/manual/status_cxx2020.xml: Update status.
* doc/html/*: Regenerate.
* testsuite/std/concepts/1.cc: New test.
* testsuite/std/concepts/2.cc: New test.
From-SVN: r277371
