2017-10-24 Richard Biener <rguenther@suse.de>
PR tree-optimization/82697
* tree-ssa-phiopt.c (cond_store_replacement): Use alias-set
zero for conditional load and unconditional store.
* gcc.dg/torture/pr82697.c: New testcase.
From-SVN: r254047
Bootstrap GCC with Intel CET by configuring GCC with
--with-build-config="bootstrap-cet bootstrap-debug"
Tested on Linux/i686 and Linux/x86-64.
config/
* bootstrap-cet.mk: New file.
gcc/
* doc/install.texi: Document bootstrap-cet.
From-SVN: r254043
The problem with making discarded symbols hidden is that the
non-default visibility is sticky. When symbols other than the
__gnu_lto ones are discarded that turns out to be a bad idea.
PR lto/82687
PR lto/82575
* simple-object-elf.c (simple_object_elf_copy_lto_debug_sections):
Only make __gnu_lto symbols hidden. Delete outdated comment.
Silence ISO C warning.
From-SVN: r254042
There is no need to insert ENDBR instruction at function entrance if
function is only called directly.
gcc/
PR target/82659
* config/i386/i386.c (rest_of_insert_endbranch): Don't insert
ENDBR instruction at function entrance if function is only
called directly.
gcc/testsuite/
PR target/82659
* gcc.target/i386/cet-label-2.c: New test.
* gcc.target/i386/cet-sjlj-4.c: Likewise.
* gcc.target/i386/cet-sjlj-5.c: Likewise.
* gcc.target/i386/cet-switch-3.c: Likewise.
* gcc.target/i386/pr82659-1.c: Likewise.
* gcc.target/i386/pr82659-2.c: Likewise.
* gcc.target/i386/pr82659-3.c: Likewise.
* gcc.target/i386/pr82659-4.c: Likewise.
* gcc.target/i386/pr82659-5.c: Likewise.
* gcc.target/i386/pr82659-6.c: Likewise.
From-SVN: r254040
PR target/82628
* config/i386/i386.md (addcarry<mode>, subborrow<mode>): Change
patterns to better describe from which operation the CF is computed.
(addcarry<mode>_0, subborrow<mode>_0): New patterns.
* config/i386/i386.c (ix86_expand_builtin) <case handlecarry>: Pass
one LTU with [DT]Imode and another one with [SD]Imode. If arg0
is 0, use _0 suffixed expanders instead of emitting a comparison
before it.
From-SVN: r254039
2017-10-23 Richard Biener <rguenther@suse.de>
PR tree-optimization/82672
* graphite-isl-ast-to-gimple.c (graphite_copy_stmts_from_block):
Fold the stmt if we propagated into it.
* gfortran.dg/graphite/pr82672.f90: New testcase.
From-SVN: r254036
gcc/ChangeLog:
PR bootstrap/82610
* system.h: Conditionally include "unique-ptr.h" if
INCLUDE_UNIQUE_PTR is defined.
* unique-ptr-tests.cc: Remove include of "unique-ptr.h" in favor
of defining INCLUDE_UNIQUE_PTR before including "system.h".
include/ChangeLog:
* unique-ptr.h: Make include of <memory> conditional on C++11 or
later.
From-SVN: r254024
Forgot to add the new file :-P
2017-10-13 Sebastian Perta <sebastian.perta@renesas.com>
* config/rl78/adddi3.S: New assembly file.
* config/rl78/t-rl78: Added adddi3.S to LIB2ADD.
From-SVN: r254016
We should check DF_REF_INSN_INFO before accessing DF_REF_INSN.
gcc/
PR target/82673
* config/i386/i386.c (ix86_finalize_stack_frame_flags): Skip
DF_REF_INSN if DF_REF_INSN_INFO is false.
gcc/testsuite/
PR target/82673
* gcc.target/i386/pr82673.c: New test.
From-SVN: r254013
* i386.c (dimode_scalar_chain::compute_convert_gain): Use
xmm_move instead of sse_move.
(sse_store_index): New function.
(ix86_register_move_cost): Be more sensible about mismatch stall;
model AVX moves correctly; make difference between sse->integer and
integer->sse.
(ix86_builtin_vectorization_cost): Model correctly aligned and unaligned
moves; make difference between SSE and AVX.
* i386.h (processor_costs): Remove sse_move; add xmm_move, ymm_move
and zmm_move. Increase size of sse load and store tables;
add unaligned load and store tables; add ssemmx_to_integer.
* x86-tune-costs.h: Update all entries according to real
move latencies from Agner Fog's manual and chip documentation.
From-SVN: r254012
PR target/82628
* config/i386/predicates.md (x86_64_dwzext_immediate_operand): New.
* config/i386/constraints.md (Wf): New constraint.
* config/i386/i386.md (UNSPEC_SBB): New unspec.
(cmp<dwi>_doubleword): Removed.
(sub<mode>3_carry_ccc, *sub<mode>3_carry_ccc_1): New patterns.
(sub<mode>3_carry_ccgz): Use unspec instead of compare.
* config/i386/i386.c (ix86_expand_branch) <case E_TImode>: Don't
expand with cmp<dwi>_doubleword. For LTU and GEU use
sub<mode>3_carry_ccc instead of sub<mode>3_carry_ccgz and use CCCmode.
From-SVN: r254011
2017-10-23 Richard Biener <rguenther@suse.de>
PR tree-optimization/82672
* graphite-isl-ast-to-gimple.c (graphite_copy_stmts_from_block):
Fold the stmt if we propagated into it.
* gfortran.dg/graphite/pr82672.f90: New testcase.
From-SVN: r254009
Based on Filesystem TS implementation, with the changes applied by:
- P0219R1 Relative Paths for Filesystem
- P0317R1 Directory Entry Caching for Filesystem
- P0492R2 Resolution of C++17 National Body Comments
Where appropriate code is shared between the TS and C++17
implementations.
* include/Makefile.am: Add new headers for C++17 filesystem library.
* include/Makefile.in: Regenerate.
* include/bits/fs_dir.h: New header, based on Filesystem TS code in
include/experimental/bits directory.
* include/bits/fs_fwd.h: Likewise.
* include/bits/fs_ops.h: Likewise.
* include/bits/fs_path.h: Likewise.
* include/experimental/bits/fs_dir.h: Rename Doxygen group.
* include/experimental/bits/fs_fwd.h: Likewise.
* include/experimental/bits/fs_ops.h: Likewise.
* include/experimental/bits/fs_path.h: Likewise.
* include/experimental/filesystem (filesystem_error::_M_gen_what):
Remove inline definition.
* include/precompiled/stdc++.h: Add <filesystem> to precompiled
header.
* include/std/filesystem: New header.
* python/libstdcxx/v6/printers.py: Enable printer for std::filesystem
paths.
* src/filesystem/Makefile.am: Add new files. Compile as C++17.
* src/filesystem/Makefile.in: Regenerate.
* src/filesystem/cow-dir.cc: Update comment.
* src/filesystem/cow-ops.cc: Likewise.
* src/filesystem/cow-path.cc: Likewise.
* src/filesystem/cow-std-dir.cc: New file.
* src/filesystem/cow-std-ops.cc: New file.
* src/filesystem/cow-std-path.cc: New file.
* src/filesystem/dir-common.h (_Dir_base, get_file_type): New header
for common code.
* src/filesystem/dir.cc (_Dir): Derive from _Dir_base.
(open_dir): Move to _Dir_base constructor.
(get_file_type): Move to dir-common.h.
(recurse): Move to _Dir_base::should_recurse.
* src/filesystem/ops-common.h: New header for common code.
* src/filesystem/ops.cc (is_set, make_file_type, make_file_status)
(is_not_found_errno, file_time, do_copy_file): Move to ops-common.h.
* src/filesystem/path.cc (filesystem_error::_M_gen_what): Define.
* src/filesystem/std-dir.cc: New file, based on Filesystem TS code.
* src/filesystem/std-ops.cc: Likewise.
* src/filesystem/std-dir.cc: Likewise.
* testsuite/27_io/filesystem/iterators/directory_iterator.cc: New
test.
* testsuite/27_io/filesystem/iterators/pop.cc: New test.
* testsuite/27_io/filesystem/iterators/recursive_directory_iterator.cc:
New test.
* testsuite/27_io/filesystem/operations/absolute.cc: New test.
* testsuite/27_io/filesystem/operations/canonical.cc: New test.
* testsuite/27_io/filesystem/operations/copy.cc: New test.
* testsuite/27_io/filesystem/operations/copy_file.cc: New test.
* testsuite/27_io/filesystem/operations/create_directories.cc: New
test.
* testsuite/27_io/filesystem/operations/create_directory.cc: New test.
* testsuite/27_io/filesystem/operations/create_symlink.cc: New test.
* testsuite/27_io/filesystem/operations/current_path.cc: New test.
* testsuite/27_io/filesystem/operations/equivalent.cc: New test.
* testsuite/27_io/filesystem/operations/exists.cc: New test.
* testsuite/27_io/filesystem/operations/file_size.cc: New test.
* testsuite/27_io/filesystem/operations/is_empty.cc: New test.
* testsuite/27_io/filesystem/operations/last_write_time.cc: New test.
* testsuite/27_io/filesystem/operations/permissions.cc: New test.
* testsuite/27_io/filesystem/operations/proximate.cc: New test.
* testsuite/27_io/filesystem/operations/read_symlink.cc: New test.
* testsuite/27_io/filesystem/operations/relative.cc: New test.
* testsuite/27_io/filesystem/operations/remove_all.cc: New test.
* testsuite/27_io/filesystem/operations/space.cc: New test.
* testsuite/27_io/filesystem/operations/status.cc: New test.
* testsuite/27_io/filesystem/operations/symlink_status.cc: New test.
* testsuite/27_io/filesystem/operations/temp_directory_path.cc: New
test.
* testsuite/27_io/filesystem/operations/weakly_canonical.cc: New test.
* testsuite/27_io/filesystem/path/append/path.cc: New test.
* testsuite/27_io/filesystem/path/assign/assign.cc: New test.
* testsuite/27_io/filesystem/path/assign/copy.cc: New test.
* testsuite/27_io/filesystem/path/compare/compare.cc: New test.
* testsuite/27_io/filesystem/path/compare/path.cc: New test.
* testsuite/27_io/filesystem/path/compare/strings.cc: New test.
* testsuite/27_io/filesystem/path/concat/path.cc: New test.
* testsuite/27_io/filesystem/path/concat/strings.cc: New test.
* testsuite/27_io/filesystem/path/construct/copy.cc: New test.
* testsuite/27_io/filesystem/path/construct/default.cc: New test.
* testsuite/27_io/filesystem/path/construct/locale.cc: New test.
* testsuite/27_io/filesystem/path/construct/range.cc: New test.
* testsuite/27_io/filesystem/path/construct/string_view.cc: New test.
* testsuite/27_io/filesystem/path/decompose/extension.cc: New test.
* testsuite/27_io/filesystem/path/decompose/filename.cc: New test.
* testsuite/27_io/filesystem/path/decompose/parent_path.cc: New test.
* testsuite/27_io/filesystem/path/decompose/relative_path.cc: New
test.
* testsuite/27_io/filesystem/path/decompose/root_directory.cc: New
test.
* testsuite/27_io/filesystem/path/decompose/root_name.cc: New test.
* testsuite/27_io/filesystem/path/decompose/root_path.cc: New test.
* testsuite/27_io/filesystem/path/decompose/stem.cc: New test.
* testsuite/27_io/filesystem/path/generation/normal.cc: New test.
* testsuite/27_io/filesystem/path/generation/proximate.cc: New test.
* testsuite/27_io/filesystem/path/generation/relative.cc: New test.
* testsuite/27_io/filesystem/path/generic/generic_string.cc: New test.
* testsuite/27_io/filesystem/path/itr/traversal.cc: New test.
* testsuite/27_io/filesystem/path/modifiers/clear.cc: New test.
* testsuite/27_io/filesystem/path/modifiers/make_preferred.cc: New
test.
* testsuite/27_io/filesystem/path/modifiers/remove_filename.cc: New
test.
* testsuite/27_io/filesystem/path/modifiers/replace_extension.cc: New
test.
* testsuite/27_io/filesystem/path/modifiers/replace_filename.cc: New
test.
* testsuite/27_io/filesystem/path/modifiers/swap.cc: New test.
* testsuite/27_io/filesystem/path/native/string.cc: New test.
* testsuite/27_io/filesystem/path/nonmember/hash_value.cc: New test.
* testsuite/27_io/filesystem/path/query/empty.cc: New test.
* testsuite/27_io/filesystem/path/query/has_extension.cc: New test.
* testsuite/27_io/filesystem/path/query/has_filename.cc: New test.
* testsuite/27_io/filesystem/path/query/has_parent_path.cc: New test.
* testsuite/27_io/filesystem/path/query/has_relative_path.cc: New
test.
* testsuite/27_io/filesystem/path/query/has_root_directory.cc: New
test.
* testsuite/27_io/filesystem/path/query/has_root_name.cc: New test.
* testsuite/27_io/filesystem/path/query/has_root_path.cc: New test.
* testsuite/27_io/filesystem/path/query/has_stem.cc: New test.
* testsuite/27_io/filesystem/path/query/is_relative.cc: New test.
* testsuite/experimental/filesystem/path/construct/string_view.cc:
Define USE_FILESYSTEM_TS.
* testsuite/util/testsuite_fs.h: Allow use with C++17 paths as well
as Filesystem TS.
From-SVN: r254008
2017-10-23 Richard Biener <rguenther@suse.de>
* tree-ssa-pre.c (bitmap_remove_from_set): Rename to...
(bitmap_remove_expr_from_set): ... this. All callers call this
for non-constant values.
(bitmap_set_subtract): Rename to...
(bitmap_set_subtract_expressions): ... this. Adjust and
optimize.
(bitmap_set_contains_value): Remove superfluous check.
(bitmap_set_replace_value): Inline into single caller ...
(bitmap_value_replace_in_set): ... here and simplify.
(dependent_clean): Merge into ...
(clean): ... this using an overload. Adjust.
(prune_clobbered_mems): Adjust.
(compute_antic_aux): Likewise.
(compute_partial_antic_aux): Likewise.
From-SVN: r254007
Also fix declarations of special functions in C++17, to import them into
the global namespace in <math.h>, and to prevent defining the
non-standard hypergeometric functions in strict mode.
PR libstdc++/82644
* doc/xml/manual/intro.xml: Include new section.
* doc/xml/manual/status_cxxis29124.xml: New section on IS 29124
status.
* include/bits/specfun.h [__STRICT_ANSI__] (hyperg, hypergf, hypergl)
(conf_hyperg, conf_hypergf, conf_hypergl): Don't declare.
* include/c_compatibility/math.h: Import special functions into
global namespace for C++17.
* testsuite/26_numerics/headers/cmath/82644.cc: New test.
* testsuite/26_numerics/headers/cmath/functions_global_c++17.cc: New
test.
From-SVN: r254004
This follows on from similar changes a couple of months ago and
is needed when general modes have variable size.
2017-10-23 Richard Sandiford <richard.sandiford@linaro.org>
gcc/
* tree-vect-loop.c (vect_create_epilog_for_reduction): Use
SCALAR_TYPE_MODE instead of TYPE_MODE.
From-SVN: r254002
This follows on from similar changes a couple of months ago and
is needed when general modes have variable size.
2017-10-23 Richard Sandiford <richard.sandiford@linaro.org>
Alan Hayward <alan.hayward@arm.com>
David Sherwood <david.sherwood@arm.com>
gcc/
* dwarf2out.c (loc_list_from_tree_1): Use SCALAR_INT_TYPE_MODE
Co-Authored-By: Alan Hayward <alan.hayward@arm.com>
Co-Authored-By: David Sherwood <david.sherwood@arm.com>
From-SVN: r254001
This follows on from similar changes a couple of months ago and
is needed when general modes have variable size.
2017-10-23 Richard Sandiford <richard.sandiford@linaro.org>
gcc/brig/
* brig-lang.c (brig_langhook_type_for_mode): Use scalar_int_mode
and scalar_float_mode.
From-SVN: r254000
Since this function handles scalar and vector shifts:
machine_mode scalar_mode = mode;
if (VECTOR_MODE_P (mode))
scalar_mode = GET_MODE_INNER (mode);
is equivalent to:
scalar_mode = GET_MODE_INNER (mode);
2017-10-23 Richard Sandiford <richard.sandiford@linaro.org>
Alan Hayward <alan.hayward@arm.com>
David Sherwood <david.sherwood@arm.com>
gcc/
* expmed.c (expand_shift_1): Use scalar_mode for scalar_mode.
Co-Authored-By: Alan Hayward <alan.hayward@arm.com>
Co-Authored-By: David Sherwood <david.sherwood@arm.com>
From-SVN: r253999
2017-10-23 Richard Biener <rguenther@suse.de>
PR tree-optimization/82129
* tree-ssa-pre.c (bitmap_set_and): Remove.
(compute_antic_aux): Compute ANTIC_OUT intersection in a way
canonicalizing expressions in the set to those with lowest
ID rather than taking that from the first edge.
* gcc.dg/torture/pr82129.c: New testcase.
From-SVN: r253998
rtx_equal_for_field_assignment_p had:
x = adjust_address_nv (x, GET_MODE (y),
-subreg_lowpart_offset (GET_MODE (x),
GET_MODE (y)));
But subreg_lowpart_offset returns an unsigned int and
adjust_address_nv takes a HWI, so a subreg offset of 4 would
give a memory offset of 0x00000000fffffffffc.
2017-10-23 Richard Sandiford <richard.sandiford@linaro.org>
gcc/
* combine.c (rtx_equal_for_field_assignment_p): Use
byte_lowpart_offset.
From-SVN: r253997
* i386.c (ix86_builtin_vectorization_cost): Use existing rtx_cost
latencies instead of having separate table; make difference between
integer and float costs.
* i386.h (processor_costs): Remove scalar_stmt_cost,
scalar_load_cost, scalar_store_cost, vec_stmt_cost, vec_to_scalar_cost,
scalar_to_vec_cost, vec_align_load_cost, vec_unalign_load_cost,
vec_store_cost.
* x86-tune-costs.h: Remove entries which has been removed in
procesor_costs from all tables; make cond_taken_branch_cost
and cond_not_taken_branch_cost COST_N_INSNS based.
From-SVN: r253993
This is needed by the later SVE LAST reductions, where an 8-bit
or 16-bit result is zero- rather than sign-extended to 32 bits.
I think it could occur in other situations too.
2017-09-19 Richard Sandiford <richard.sandiford@linaro.org>
Alan Hayward <alan.hayward@arm.com>
David Sherwood <david.sherwood@arm.com>
gcc/
* internal-fn.c (expand_direct_optab_fn): Don't assign directly
to a SUBREG_PROMOTED_VAR.
Co-Authored-By: Alan Hayward <alan.hayward@arm.com>
Co-Authored-By: David Sherwood <david.sherwood@arm.com>
From-SVN: r253992
This patch is like the earlier GET_MODE_UNIT_SIZE one,
but for precisions rather than sizes. There is one behavioural
change in expand_debug_expr: we shouldn't use lowpart subregs
for non-scalar truncations, since that would just reinterpret
some of the scalars and drop the rest. (This probably doesn't
trigger in practice.) Using TRUNCATE is fine for scalars,
since simplify_gen_unary knows when a subreg can be used.
2017-10-22 Richard Sandiford <richard.sandiford@linaro.org>
Alan Hayward <alan.hayward@arm.com>
David Sherwood <david.sherwood@arm.com>
gcc/
* cfgexpand.c (expand_debug_expr): Use GET_MODE_UNIT_PRECISION.
(expand_debug_source_expr): Likewise.
* combine.c (combine_simplify_rtx): Likewise.
* cse.c (fold_rtx): Likewise.
* optabs.c (expand_float): Likewise.
* simplify-rtx.c (simplify_unary_operation_1): Likewise.
(simplify_binary_operation_1): Likewise.
Co-Authored-By: Alan Hayward <alan.hayward@arm.com>
Co-Authored-By: David Sherwood <david.sherwood@arm.com>
From-SVN: r253991
This patch uses HWI_COMPUTABLE_MODE_P (X) instead of
GET_MODE_PRECISION (X) <= HOST_BITS_PER_WIDE_INT in cases
where X also needs to be a scalar integer.
2017-10-22 Richard Sandiford <richard.sandiford@linaro.org>
Alan Hayward <alan.hayward@arm.com>
David Sherwood <david.sherwood@arm.com>
gcc/
* combine.c (simplify_comparison): Use HWI_COMPUTABLE_MODE_P.
(record_promoted_value): Likewise.
* expr.c (expand_expr_real_2): Likewise.
* ree.c (update_reg_equal_equiv_notes): Likewise.
(combine_set_extension): Likewise.
* rtlanal.c (low_bitmask_len): Likewise.
* simplify-rtx.c (neg_const_int): Likewise.
(simplify_binary_operation_1): Likewise.
Co-Authored-By: Alan Hayward <alan.hayward@arm.com>
Co-Authored-By: David Sherwood <david.sherwood@arm.com>
From-SVN: r253990
This patch uses subreg_size_lowpart_offset in places that open-coded
the calculation. The reload use (and the LRA one that was based on it)
seemed to ignore the BYTES_BIG_ENDIAN != WORDS_BIG_ENDIAN case; it's not
obvious whether that was deliberate or an oversight.
2017-10-22 Richard Sandiford <richard.sandiford@linaro.org>
Alan Hayward <alan.hayward@arm.com>
David Sherwood <david.sherwood@arm.com>
gcc/
* lra-spills.c (assign_mem_slot): Use subreg_size_lowpart_offset.
* regcprop.c (maybe_mode_change): Likewise.
* reload1.c (alter_reg): Likewise.
Co-Authored-By: Alan Hayward <alan.hayward@arm.com>
Co-Authored-By: David Sherwood <david.sherwood@arm.com>
From-SVN: r253989
