PR target/84272
* config/aarch64/cortex-a57-fma-steering.c (fma_forest::merge_forest):
Use ++iter rather than iter++ for std::list iterators.
(func_fma_steering::dfs): Likewise. Don't delete nodes right away,
defer deleting them until all nodes in the forest are processed. Do
free even leaf nodes. Change to_process into auto_vec.
* g++.dg/opt/pr84272.C: New test.
From-SVN: r257727
PR bootstrap/84405
* system.h (BROKEN_VALUE_INITIALIZATION): Define for GCC < 4.3.
* vec.h (vec_default_construct): Use memset instead of placement new
if BROKEN_VALUE_INITIALIZATION is defined.
* hash-table.h (hash_table<Descriptor, Allocator>::empty_slow): Use
memset instead of value initialization if BROKEN_VALUE_INITIALIZATION
is defined.
From-SVN: r257726
PR rtl-optimization/81443
* rtlanal.c (num_sign_bit_copies1) <SUBREG>: Do not propagate results
from inner REGs to paradoxical SUBREGs.
From-SVN: r257724
2018-02-16 Richard Biener <rguenther@suse.de>
PR tree-optimization/84399
* graphite-scop-detection.c (scop_detection::stmt_simple_for_scop_p):
For operands we can analyze at their definition make sure we can
analyze them at each use as well.
* gcc.dg/graphite/pr84399.c: New testcase.
From-SVN: r257723
2018-02-16 Richard Biener <rguenther@suse.de>
PR tree-optimization/84190
* tree-ssa.c (non_rewritable_mem_ref_base): Do not touch
volatile accesses if the decl isn't volatile.
* g++.dg/torture/pr84190.C: New testcase.
From-SVN: r257721
2018-02-15 Janus Weil <janus@gcc.gnu.org>
PR fortran/84409
* interface.c (check_dtio_arg_TKR_intent): Add a check for character
length.
2018-02-15 Janus Weil <janus@gcc.gnu.org>
PR fortran/84409
* gfortran.dg/dtio_21.f03: Add an error message.
* gfortran.dg/dtio_22.f90: Fix invalid test case.
From-SVN: r257711
PR preprocessor/83708
* macro.c (vaopt_state): Reorder m_last_was_paste before m_state.
(vaopt_state::vaopt_state): Adjust.
(vaopt_state::update_flags): Add BEGIN and END.
(vaopt_state::update): Return them.
(copy_paste_flag): Factor out of replace_args.
(last_token_is): New.
(replace_args): Handle BEGIN and END. Avoid padding there.
(tokens_buff_last_token_ptr): Return NULL if no tokens.
Co-Authored-By: Jakub Jelinek <jakub@redhat.com>
From-SVN: r257696
PR tree-optimization/84383
* tree-ssa-strlen.c (maybe_diag_stxncpy_trunc): Don't look at
dstoff nor call operand_equal_p if dstbase is NULL.
* gcc.c-torture/compile/pr84383.c: New test.
From-SVN: r257684
PR tree-optimization/84334
* match.pd ((A +- CST1) +- CST2 -> A + CST3): If A is
also a CONSTANT_CLASS_P, punt.
* gcc.dg/pr84334.c: New test.
From-SVN: r257683
gcc/
* config/riscv/riscv.c (riscv_first_stack_step): Move locals after
first SMALL_OPERAND check. New local min_second_step. Move assert
to where locals are set. Add TARGET_RVC support.
* config/riscv/riscv.h (C_SxSP_BITS, SWSP_REACH, SDSP_REACH): New.
From-SVN: r257681
gcc/ChangeLog:
PR tree-optimization/83698
* gimple-ssa-warn-restrict.c (builtin_memref::builtin_memref): For
arrays constrain the offset range to their bounds.
(builtin_access::strcat_overlap): Adjust the bounds of overlap offset.
(builtin_access::overlap): Avoid setting the size of overlap if it's
already been set.
(maybe_diag_overlap): Also consider arrays when deciding what values
of offsets to include in diagnostics.
gcc/testsuite/ChangeLog:
PR tree-optimization/83698
* gcc.dg/Wrestrict-7.c: New test.
* c-c++-common/Wrestrict.c: Adjust expected values for strcat.
* gcc.target/i386/chkp-stropt-17.c: Same.
From-SVN: r257676
2018-02-14 Carl Love <cel@us.ibm.com>
* gcc.target/powerpc/builtins-4-int128-runnable.c
(dg-require-effective-target): Change vsx_hw to p8vector_hw.
(dg-options): Change -maltivec -mvsx to -mpower8-vector.
From-SVN: r257675
gcc/ChangeLog:
PR c/84108
* attribs.c (diag_attr_exclusions): Consider the exclusion(s)
that correspond to the kind of a declaration.
gcc/testsuite/ChangeLog:
PR c/84108
* gcc.dg/Wattributes-8.c: New test.
From-SVN: r257674
Introduce a couple of new CET intrinsics for reading and updating a
shadow stack pointer (_get_ssp and _inc_ssp). They replace the existing
_rdssp[d|q] and _incssp[d|q] instrinsics.
PR target/84239
* gcc/config/i386/cetintrin.h: Remove _rdssp[d|q] and
add _get_ssp intrinsics. Remove argument from
__builtin_ia32_rdssp[d|q].
* gcc/config/i386/i386-builtin-types.def: Add UINT_FTYPE_VOID.
* gcc/config/i386/i386-builtin.def: Remove argument from
__builtin_ia32_rdssp[d|q].
* gcc/config/i386/i386.c: Use UINT_FTYPE_VOID. Use
ix86_expand_special_args_builtin for _rdssp[d|q].
* gcc/config/i386/i386.md: Remove argument from rdssp[si|di] insn.
Clear register before usage.
* doc/extend.texi: Remove argument from __builtin_ia32_rdssp[d|q].
Add documentation for new _get_ssp and _inc_ssp intrinsics.
* testsuite/gcc.target/i386/cet-intrin-3.c: Use new _get_ssp and
_inc_ssp intrinsics.
* testsuite/gcc.target/i386/cet-intrin-4.c: Likewise.
* testsuite/gcc.target/i386/cet-rdssp-1.c: Remove argument from
__builtin_ia32_rdssp[d|q].
* libgcc/config/i386/shadow-stack-unwind.hi (_Unwind_Frames_Extra):
Use new _get_ssp and _inc_ssp intrinsics.
From-SVN: r257660
PR other/82368
* elf.c (EM_PPC64, EF_PPC64_ABI): Undefine and define.
(struct elf_ppc64_opd_data): New type.
(elf_initialize_syminfo): Add opd argument, handle symbols
pointing into the PowerPC64 ELFv1 .opd section.
(elf_add): Read .opd section on PowerPC64 ELFv1, pass pointer
to structure with .opd data to elf_initialize_syminfo.
From-SVN: r257658
object_address_invariant_in_loop_p ignored ARRAY_REF indices on
the basis that:
/* Index of the ARRAY_REF was zeroed in analyze_indices, thus we only
need to check the stride and the lower bound of the reference. */
That was true back in 2007 when the code was added:
static void
dr_analyze_indices (struct data_reference *dr, struct loop *nest)
{
[...]
while (handled_component_p (aref))
{
if (TREE_CODE (aref) == ARRAY_REF)
{
op = TREE_OPERAND (aref, 1);
access_fn = analyze_scalar_evolution (loop, op);
access_fn = resolve_mixers (nest, access_fn);
VEC_safe_push (tree, heap, access_fns, access_fn);
TREE_OPERAND (aref, 1) = build_int_cst (TREE_TYPE (op), 0);
}
aref = TREE_OPERAND (aref, 0);
}
but the assignment was removed a few years ago. We were therefore
treating "two->arr[i]" and "three->arr[i]" as loop invariant.
2018-02-14 Richard Sandiford <richard.sandiford@linaro.org>
gcc/
PR tree-optimization/84357
* tree-data-ref.c (object_address_invariant_in_loop_p): Check
operand 1 of an ARRAY_REF too.
gcc/testsuite/
PR tree-optimization/84357
* gcc.dg/vect/pr84357.c: New test.
From-SVN: r257657
gcc/
PR target/83831
* config/rx/rx-protos.h (rx_reg_dead_or_unused_after_insn,
rx_copy_reg_dead_or_unused_notes, rx_fuse_in_memory_bitop): New
declarations.
(set_of_reg): New struct.
(rx_find_set_of_reg, rx_find_use_of_reg): New functions.
* config/rx/rx.c (rx_reg_dead_or_unused_after_insn,
rx_copy_reg_dead_or_unused_notes, rx_fuse_in_memory_bitop): New
functions.
* config/rx/rx.md (andsi3, iorsi3, xorsi3): Convert to insn_and_split.
Split into bitclr, bitset, bitinvert patterns if appropriate.
(*bitset, *bitinvert, *bitclr): Convert to named insn_and_split and
use rx_fuse_in_memory_bitop.
(*bitset_in_memory, *bitinvert_in_memory, *bitclr_in_memory): Convert
to named insn, correct maximum insn length.
gcc/testsuite/
PR target/83831
* gcc.target/rx/pr83831.c: New tests.
From-SVN: r257655
Igor Tsimbalist
Martin Liska
Julia Koval
Jakub Jelinek
Eric Botcazou
Richard Biener
Jason Merrill
GCC Administrator
Martin Sebor
Janus Weil
Jonathan Wakely
Thomas Koenig
Paolo Carlini
Aaron Sawdey
Tom de Vries
Jakub Jelinek
Jason Merrill
Jim Wilson
Indu Bhagat
Carl Love
John David Anglin
Uros Bizjak
Kelvin Nilsen
Nathan Sidwell
Will Schmidt
Richard Sandiford
Oleg Endo