gcc/
	* config/i386/i386.md(*movsf_internal, *movdf_internal):
	Avoid 512-bit AVX modes for TARGET_PREFER_AVX256.

From-SVN: r254038

	PR middle-end/82569
	* tree-outof-ssa.h (always_initialized_rtx_for_ssa_name_p): Delete.
	* expr.c (expand_expr_real_1) <expand_decl_rtl>: Revert latest change.
	* loop-iv.c (iv_get_reaching_def): Likewise.
	* cfgexpand.c (expand_one_ssa_partition): Initialize the RTX if the 
	variable is promoted and the partition contains undefined values.

From-SVN: r254037

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

2017-10-23  Sandra Loosemore  <sandra@codesourcery.com>

	gcc/testsuite/
	* gcc.target/nios2/cdx-branch.c:  Fix broken test.
	* gcc.target/nios2/lo-addr-bypass.c: New.
	* gcc.target/nios2/lo-addr-char.c: New.
	* gcc.target/nios2/lo-addr-int.c: New.
	* gcc.target/nios2/lo-addr-pic.c: New.
	* gcc.target/nios2/lo-addr-short.c: New.
	* gcc.target/nios2/lo-addr-tls.c: New.
	* gcc.target/nios2/lo-addr-uchar.c: New.
	* gcc.target/nios2/lo-addr-ushort.c: New.
	* gcc.target/nios2/lo-addr-volatile.c: New.

From-SVN: r254035

2017-10-23  Sandra Loosemore  <sandra@codesourcery.com>

	gcc/
	* config/nios2/nios2.c (nios2_rtx_costs): Make costs better
	reflect reality.
	(nios2_address_cost): Define.
	(nios2_legitimize_address): Recognize (exp + constant) directly.
	(TARGET_ADDRESS_COST): Define.

From-SVN: r254034

2017-10-23  Sandra Loosemore  <sandra@codesourcery.com>

	gcc/
	* config/nios2/nios2-protos.h (nios2_large_constant_p): Declare.
	(nios2_symbolic_memory_operand_p): Declare.
	(nios2_split_large_constant): Declare.
	(nios2_split_symbolic_memory_operand): Declare.
	* config/nios2/nios2.c: Adjust includes.
	(nios2_symbolic_constant_allowed): New.
	(nios2_symbolic_constant_p): New.
	(nios2_plus_symbolic_constant_p): New.
	(nios2_valid_addr_expr_p): Recognize addresses involving 
	symbolic constants.
	(nios2_legitimate_address_p): Likewise, also LO_SUM.
	(nios2_symbolic_memory_operand_p): New.
	(nios2_large_constant_p): New.
	(nios2_split_large_constant): New.
	(nios2_split_plus_large_constant): New.
	(nios2_split_symbolic_memory_operand): New.
	(nios2_legitimize_address): Code refactoring.  Handle addresses
	involving symbolic constants.
	(nios2_emit_move_sequence): Likewise.
	(nios2_print_operand): Improve error output.
	(nios2_print_operand_address): Handle LO_SUM.
	(nios2_cdx_narrow_form_p): Likewise.
	* config/nios2/nios2.md (movqi_internal): Add splitter for memory
	operands involving symbolic constants.
	(movhi_internal, movsi_internal): Likewise.
	(zero_extendhisi2, zero_extendqi<mode>2): Likewise.
	(extendhisi2, extendqi<mode>2): Likewise.

From-SVN: r254033

2017-10-23  Sandra Loosemore  <sandra@codesourcery.com>

	gcc/
	* tree-pass.h (PROP_rtl_split_insns): Define.
	* recog.c (pass_data_split_all_insns): Provide PROP_rtl_split_insns.

From-SVN: r254032

2017-10-23  Sandra Loosemore  <sandra@codesourcery.com>

	gcc/
	* config/nios2/nios2.c (TARGET_LRA_P): Don't override.

From-SVN: r254031

From-SVN: r254030

re PR c++/80449 (ICE reporting failed partial class template specialization class template argument deduction)

/cp
2017-10-23  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/80449
	* semantics.c (finish_compound_literal): Check do_auto_deduction
	return value for error_mark_node.

/testsuite
2017-10-23  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/80449
	* g++.dg/cpp1z/class-deduction46.C: New.

From-SVN: r254026

	PR debug/82630
	* target.def (const_not_ok_for_debug_p): Default to
	default_const_not_ok_for_debug_p instead of hook_bool_rtx_false.
	* targhooks.h (default_const_not_ok_for_debug_p): New declaration.
	* targhooks.c (default_const_not_ok_for_debug_p): New function.
	* dwarf2out.c (const_ok_for_output_1): Only reject UNSPECs for
	which targetm.const_not_ok_for_debug_p returned true.
	* config/arm/arm.c (arm_const_not_ok_for_debug_p): Return true
	for UNSPECs.
	* config/powerpcspe/powerpcspe.c (rs6000_const_not_ok_for_debug_p):
	Likewise.
	* config/rs6000/rs6000.c (rs6000_const_not_ok_for_debug_p): Likewise.
	* config/i386/i386.c (ix86_delegitimize_address_1): Don't delegitimize
	UNSPEC_GOTOFF with addend into addend - _GLOBAL_OFFSET_TABLE_ + symbol
	if !base_term_p.
	(ix86_const_not_ok_for_debug_p): New function.
	(i386_asm_output_addr_const_extra): Handle UNSPEC_GOTOFF.
	(TARGET_CONST_NOT_OK_FOR_DEBUG_P): Redefine.

	* g++.dg/guality/pr82630.C: New test.

From-SVN: r254025

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

	* tree.c (strip_typedefs): Canonicalize TYPE_RAISES_EXCEPTIONS.

From-SVN: r254022

From-SVN: r254021

	PR target/82662
	* gcc.target/i386/pr82662.c: New test.

From-SVN: r254020

* config/rl78/rl78.md: New define_expand "subdi3".
* config/rl78/subdi3.S: New assembly file.
* config/rl78/t-rl78: Added subdi3.S to LIB2ADD.

From-SVN: r254019

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

	PR c/82681
	* c-warn.c (warnings_for_convert_and_check): Fix typos.

	* gcc.dg/c90-const-expr-11.c: Fix typos in dg-warning.
	* gcc.dg/overflow-warn-5.c: Likewise.
	* gcc.dg/overflow-warn-8.c: Likewise.

From-SVN: r254014

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

	* common.opt (gcolumn-info): Enable by default.
	* doc/invoke.texi (gcolumn-info): Document new default.

	* lib/scanasm.exp (dg-function-on-line): Accept optional column info.
	* gcc.dg/debug/dwarf2/pr53948.c: Likewise.
	* g++.dg/debug/dwarf2/pr77363.C: Likewise.
	* gcc.dg/debug/dwarf2/asm-line1.c: Add -gno-column-info to dg-options.
	* gcc.dg/debug/dwarf2/discriminator.c: Likewise.
	* g++.dg/debug/dwarf2/typedef6.C: Likewise.

From-SVN: r254010

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

re PR c++/77555 (unused inline function in-function static variable accessed from outside leads to linker error)

2017-10-23  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/77555
	* g++.dg/torture/pr77555.C: New.

From-SVN: r254006

2017-10-23  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/82129
	Revert
	2017-08-01  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/81181
	* tree-ssa-pre.c (compute_antic_aux): Defer clean() to ...
	(compute_antic): ... end of iteration here.

From-SVN: r254005

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

I took the documentation of the FRAME_GROWS_DOWNWARD behaviour from the
version that was in most header files, since the one in the manual seemed
less clear.

The patch deliberately keeps FIRST_PARM_OFFSET(FNDECL) in
microblaze_starting_frame_offset; this seems to be a port-local
convention and takes advantage of the fact that FIRST_PARM_OFFSET
doesn't read FNDECL.

2017-10-23  Richard Sandiford  <richard.sandiford@linaro.org>

gcc/
	* target.def (starting_frame_offset): New hook.
	* doc/tm.texi (STARTING_FRAME_OFFSET): Remove in favor of...
	(TARGET_STARTING_FRAME_OFFSET): ...this new hook.
	* doc/tm.texi.in: Regenerate.
	* hooks.h (hook_hwi_void_0): Declare.
	* hooks.c (hook_hwi_void_0): New function.
	* doc/rtl.texi: Refer to TARGET_STARTING_FRAME_OFFSET instead of
	STARTING_FRAME_OFFSET.
	* builtins.c (expand_builtin_setjmp_receiver): Likewise.
	* reload1.c (reload): Likewise.
	* cfgexpand.c (expand_used_vars): Use targetm.starting_frame_offset
	instead of STARTING_FRAME_OFFSET.
	* function.c (try_fit_stack_local): Likewise.
	(assign_stack_local_1): Likewise
	(instantiate_virtual_regs): Likewise.
	* rtlanal.c (rtx_addr_can_trap_p_1): Likewise.
	* config/avr/avr.md (nonlocal_goto_receiver): Likewise.
	* config/aarch64/aarch64.h (STARTING_FRAME_OFFSET): Delete.
	* config/alpha/alpha.h (STARTING_FRAME_OFFSET): Likewise.
	* config/arc/arc.h (STARTING_FRAME_OFFSET): Likewise.
	* config/arm/arm.h (STARTING_FRAME_OFFSET): Likewise.
	* config/bfin/bfin.h (STARTING_FRAME_OFFSET): Likewise.
	* config/c6x/c6x.h (STARTING_FRAME_OFFSET): Likewise.
	* config/cr16/cr16.h (STARTING_FRAME_OFFSET): Likewise.
	* config/cris/cris.h (STARTING_FRAME_OFFSET): Likewise.
	* config/fr30/fr30.h (STARTING_FRAME_OFFSET): Likewise.
	* config/frv/frv.h (STARTING_FRAME_OFFSET): Likewise.
	* config/ft32/ft32.h (STARTING_FRAME_OFFSET): Likewise.
	* config/h8300/h8300.h (STARTING_FRAME_OFFSET): Likewise.
	* config/i386/i386.h (STARTING_FRAME_OFFSET): Likewise.
	* config/ia64/ia64.h (STARTING_FRAME_OFFSET): Likewise.
	* config/m32c/m32c.h (STARTING_FRAME_OFFSET): Likewise.
	* config/m68k/m68k.h (STARTING_FRAME_OFFSET): Likewise.
	* config/mcore/mcore.h (STARTING_FRAME_OFFSET): Likewise.
	* config/mn10300/mn10300.h (STARTING_FRAME_OFFSET): Likewise.
	* config/moxie/moxie.h (STARTING_FRAME_OFFSET): Likewise.
	* config/msp430/msp430.h (STARTING_FRAME_OFFSET): Likewise.
	* config/nds32/nds32.h (STARTING_FRAME_OFFSET): Likewise.
	* config/nios2/nios2.h (STARTING_FRAME_OFFSET): Likewise.
	* config/nvptx/nvptx.h (STARTING_FRAME_OFFSET): Likewise.
	* config/pdp11/pdp11.h (STARTING_FRAME_OFFSET): Likewise.
	* config/riscv/riscv.h (STARTING_FRAME_OFFSET): Likewise.
	* config/rl78/rl78.h (STARTING_FRAME_OFFSET): Likewise.
	* config/rx/rx.h (STARTING_FRAME_OFFSET): Likewise.
	* config/s390/s390.h (STARTING_FRAME_OFFSET): Likewise.
	* config/sh/sh.h (STARTING_FRAME_OFFSET): Likewise.
	* config/sparc/sparc.c (sparc_compute_frame_size): Likewise.
	* config/sparc/sparc.h (STARTING_FRAME_OFFSET): Likewise.
	* config/spu/spu.h (STARTING_FRAME_OFFSET): Likewise.
	* config/stormy16/stormy16.h (STARTING_FRAME_OFFSET): Likewise.
	* config/tilegx/tilegx.h (STARTING_FRAME_OFFSET): Likewise.
	* config/tilepro/tilepro.h (STARTING_FRAME_OFFSET): Likewise.
	* config/v850/v850.h (STARTING_FRAME_OFFSET): Likewise.
	* config/visium/visium.h (STARTING_FRAME_OFFSET): Likewise.
	* config/avr/avr.h (STARTING_FRAME_OFFSET): Likewise.
	* config/avr/avr-protos.h (avr_starting_frame_offset): Likewise.
	* config/avr/avr.c (avr_starting_frame_offset): Make static and
	return a HOST_WIDE_INT.
	(avr_builtin_setjmp_frame_value): Use it instead of
	STARTING_FRAME_OFFSET.
	(TARGET_STARTING_FRAME_OFFSET): Redefine.
	* config/epiphany/epiphany.h (STARTING_FRAME_OFFSET): Delete.
	* config/epiphany/epiphany.c (epiphany_starting_frame_offset):
	New function.
	(TARGET_STARTING_FRAME_OFFSET): Redefine.
	* config/iq2000/iq2000.h (STARTING_FRAME_OFFSET): Delete.
	* config/iq2000/iq2000.c (iq2000_starting_frame_offset): New function.
	(TARGET_CONSTANT_ALIGNMENT): Redefine.
	* config/lm32/lm32.h (STARTING_FRAME_OFFSET): Delete.
	* config/lm32/lm32.c (lm32_starting_frame_offset): New function.
	(TARGET_STARTING_FRAME_OFFSET): Redefine.
	* config/m32r/m32r.h (STARTING_FRAME_OFFSET): Delete.
	* config/m32r/m32r.c (m32r_starting_frame_offset): New function.
	(TARGET_STARTING_FRAME_OFFSET): Redefine.
	* config/microblaze/microblaze.h (STARTING_FRAME_OFFSET): Delete.
	* config/microblaze/microblaze.c (microblaze_starting_frame_offset):
	New function.
	(TARGET_STARTING_FRAME_OFFSET): Redefine.
	* config/mips/mips.h (STARTING_FRAME_OFFSET): Delete.
	* config/mips/mips.c (mips_compute_frame_info): Refer to
	TARGET_STARTING_FRAME_OFFSET instead of STARTING_FRAME_OFFSET.
	(mips_starting_frame_offset): New function.
	(TARGET_STARTING_FRAME_OFFSET): Redefine.
	* config/mmix/mmix.h (STARTING_FRAME_OFFSET): Delete.
	* config/mmix/mmix-protos.h (mmix_starting_frame_offset): Delete.
	* config/mmix/mmix.c (mmix_starting_frame_offset): Make static
	and return a HOST_WIDE_INT.
	(TARGET_STARTING_FRAME_OFFSET): Redefine.
	(mmix_initial_elimination_offset): Refer to
	TARGET_STARTING_FRAME_OFFSET instead of STARTING_FRAME_OFFSET.
	* config/pa/pa.h (STARTING_FRAME_OFFSET): Delete.
	* config/pa/pa.c (pa_starting_frame_offset): New function.
	(pa_compute_frame_size): Use it instead of STARTING_FRAME_OFFSET.
	(pa_expand_prologue): Likewise.
	(TARGET_STARTING_FRAME_OFFSET): Redefine.
	* config/powerpcspe/aix.h (STARTING_FRAME_OFFSET): Split out
	!FRAME_GROWS_DOWNWARD handling to...
	(RS6000_STARTING_FRAME_OFFSET): ...this new macro.
	* config/powerpcspe/darwin.h (STARTING_FRAME_OFFSET): Split out
	!FRAME_GROWS_DOWNWARD handling to...
	(RS6000_STARTING_FRAME_OFFSET): ...this new macro.
	* config/powerpcspe/powerpcspe.h (STARTING_FRAME_OFFSET): Split out
	!FRAME_GROWS_DOWNWARD handling to...
	(RS6000_STARTING_FRAME_OFFSET): ...this new macro.
	* config/powerpcspe/powerpcspe.c (TARGET_STARTING_FRAME_OFFSET):
	Redefine.
	(rs6000_starting_frame_offset): New function.
	* config/rs6000/aix.h (STARTING_FRAME_OFFSET): Split out
	!FRAME_GROWS_DOWNWARD handling to...
	(RS6000_STARTING_FRAME_OFFSET): ...this new macro.
	* config/rs6000/darwin.h (STARTING_FRAME_OFFSET): Split out
	!FRAME_GROWS_DOWNWARD handling to...
	(RS6000_STARTING_FRAME_OFFSET): ...this new macro.
	* config/rs6000/rs6000.h (STARTING_FRAME_OFFSET): Split out
	!FRAME_GROWS_DOWNWARD handling to...
	(RS6000_STARTING_FRAME_OFFSET): ...this new macro.
	* config/rs6000/rs6000.c (TARGET_STARTING_FRAME_OFFSET): Refine.
	(rs6000_starting_frame_offset): New function.
	* config/vax/elf.h (STARTING_FRAME_OFFSET): Delete.
	* config/vax/vax.h (STARTING_FRAME_OFFSET): Delete.
	* config/vax/vax.c (vax_starting_frame_offset): New function.
	(vax_expand_prologue): Use it instead of STARTING_FRAME_OFFSET.
	(TARGET_STARTING_FRAME_OFFSET): Redefine.
	* config/xtensa/xtensa.h (STARTING_FRAME_OFFSET): Delete.
	* config/xtensa/xtensa.c (xtensa_starting_frame_offset): New function.
	(TARGET_STARTING_FRAME_OFFSET): Redefine.
	* system.h (STARTING_FRAME_OFFSET): Poison.

From-SVN: r254003

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

From-SVN: r253996

i386.c (ix86_builtin_vectorization_cost): Use existing rtx_cost latencies instead of having separate table...


	* 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