re PR tree-optimization/81571 (ICE at -O3 in both 32-bit and 64-bit modes (internal compiler error: in as_a, at is-a.h:192))

2017-07-27  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/81571
	* tree-vect-slp.c (vect_build_slp_tree): Properly verify reduction
	PHIs.

	* gcc.dg/torture/pr81571.c: New testcase.

From-SVN: r250626

2017-07-27  Martin Liska  <mliska@suse.cz>

	* opt-functions.awk: Add validation of value of Init.
	* optc-gen.awk: Pass new argument.

From-SVN: r250625

	* config/sparc/sparc.c (sparc_option_override): Set MASK_FSMULD flag
	earlier and only if MASK_FPU is set.  Adjust formatting.

From-SVN: r250623

2017-07-27  Martin Liska  <mliska@suse.cz>

	* auto-profile.c (autofdo_source_profile::update_inlined_ind_target):
	Fix wrong condition.

From-SVN: r250622

2017-07-27  Martin Liska  <mliska@suse.cz>

	* auto-profile.c (afdo_annotate_cfg): Assign zero counts to
	BBs and edges seen by autoFDO.

From-SVN: r250621

re PR middle-end/81502 (In some cases the data is moved to memory unnecessarily [partial regression])

2017-07-27  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/81502
	* tree-ssa.c (non_rewritable_lvalue_p): Handle BIT_INSERT_EXPR
	with incompatible but same sized type.
	(execute_update_addresses_taken): Likewise.

	* gcc.target/i386/vect-insert-1.c: New testcase.

From-SVN: r250620

While answering a user question on the equivalence of
-ftree-loop-vectorize + -ftree-slp-vectorize and -ftree-vectorize I
spotted one case which broke the equivalence. pass_ch::process_loop_p
was guarded on flag_tree_vectorize, meaning you would get it for
-ftree-vectorize, but not for -ftree-loop-vectorize/-ftree-slp-vectorize.

This patch fixes that, getting rid of the only use of flag_tree_vectorize
in the code base.

gcc/

	* tree-ssa-loop-ch.c (pass_ch::process_loop_p): Guard on
	flag_tree_loop_vectorize rather than flag_tree_vectorize.

From-SVN: r250619

The HI/QI atomic_fetch_<atomic><mode>" expander accepted symbolic
references and emitted CAS patterns whose insn predicates rejected them.

Fixed by allowing symbolic references there as well.  Reload will get
rid of them due to the constraint letter.

Regression tested on s390x.

gcc/ChangeLog:

2017-07-27  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>

	PR target/81534
	* config/s390/s390.md ("*atomic_compare_and_swap<mode>_1")
	("*atomic_compare_and_swapdi_2", "*atomic_compare_and_swapsi_3"):
	Change s_operand to memory_operand.

gcc/testsuite/ChangeLog:

2017-07-27  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>

	PR target/81534
	* gcc.target/s390/pr81534.c: New test.

From-SVN: r250617

The little-endian VSX code uses rotates to swap the two 64-bit halves of
128-bit scalar modes.  This is fine for TImode and V1TImode, but it
isn't really valid to use RTL rotates on floating-point modes like
KFmode and TFmode, and doing that triggered an assert added by the
SVE series.  This patch uses bit-casts to V1TImode instead.

2017-07-27  Richard Sandiford  <richard.sandiford@linaro.org>

gcc/
	* config/rs6000/rs6000-protos.h (rs6000_emit_le_vsx_permute): Declare.
	* config/rs6000/rs6000.c (rs6000_gen_le_vsx_permute): Replace with...
	(rs6000_emit_le_vsx_permute): ...this.  Take the destination as input.
	Emit instructions rather than returning an expression.  Handle TFmode
	and KFmode by casting to TImode.
	(rs6000_emit_le_vsx_load): Update to use rs6000_emit_le_vsx_permute.
	(rs6000_emit_le_vsx_store): Likewise.
	* config/rs6000/vsx.md (VSX_TI): New iterator.
	(*vsx_le_permute_<mode>): Use it instead of VSX_LE_128.
	(*vsx_le_undo_permute_<mode>): Likewise.
	(*vsx_le_perm_load_<mode>): Use rs6000_emit_le_vsx_permute to
	emit the split sequence.
	(*vsx_le_perm_store_<mode>): Likewise.

From-SVN: r250615

	PR tree-optimization/81555
	PR tree-optimization/81556
	* tree-ssa-reassoc.c (rewrite_expr_tree): Add NEXT_CHANGED argument,
	if true, force CHANGED for the recursive invocation.
	(reassociate_bb): Remember original length of ops array, pass
	len != orig_len as NEXT_CHANGED in rewrite_expr_tree call.

	* gcc.c-torture/execute/pr81555.c: New test.
	* gcc.c-torture/execute/pr81556.c: New test.

From-SVN: r250609

	* attribs.c (decl_attributes): Imply noinline, noclone and no_icf
	attributes for noipa attribute.  For naked attribute use
	lookup_attribute first before lookup_attribute_spec.
	* final.c (rest_of_handle_final): Disable IPA RA for functions with
	noipa attribute.
	* ipa-visibility.c (non_local_p): Fix comment typos.  Return true
	for functions with noipa attribute.
	(cgraph_externally_visible_p): Return true for functions with noipa
	attribute.
	* cgraph.c (cgraph_node::get_availability): Return AVAIL_INTERPOSABLE
	for functions with noipa attribute.
	* doc/extend.texi: Document noipa function attribute.
	* tree-ssa-structalias.c (refered_from_nonlocal_fn): Set *nonlocal_p
	also for functions with noipa attribute.
	(ipa_pta_execute): Set nonlocal_p also for nodes with noipa attribute.
c-family/
	* c-attribs.c (c_common_attribute_table): Add noipa attribute.
	(handle_noipa_attribute): New function.
testsuite/
	* gcc.dg/attr-noipa.c: New test.
	* gcc.dg/ipa/ipa-pta-18.c: New test.
	* gcc.dg/ipa/ipa-sra-11.c: New test.

From-SVN: r250607

From-SVN: r250601

aarch64.c (thunderx_vector_cost): Decrease cost of vec_unalign_load_cost and vec_unalign_store_cost.

2017-07-26  Andrew Pinski  <apinski@cavium.com>

        * config/aarch64/aarch64.c (thunderx_vector_cost): Decrease cost of
        vec_unalign_load_cost and vec_unalign_store_cost.

From-SVN: r250597

[gcc]
2017-07-26  Michael Meissner  <meissner@linux.vnet.ibm.com>

	* config/rs6000/rs6000-cpus.def (ISA_2_7_MASKS_SERVER): Delete
	-mvsx-small-integer option.
	(ISA_3_0_MASKS_IEEE): Likewise.
	(OTHER_VSX_VECTOR_MASKS): Likewise.
	(POWERPC_MASKS): Likewise.
	* config/rs6000/rs6000.opt (-mvsx-small-integer): Likewise.
	* config/rs6000/rs6000.c (rs6000_hard_regno_mode_ok): Simplify
	code, only testing for DImode being allowed in non-VSX floating
	point registers.
	(rs6000_init_hard_regno_mode_ok): Change TARGET_VSX_SMALL_INTEGER
	to TARGET_P8_VECTOR test.  Remove redundant VSX test inside of
	another VSX test.
	(rs6000_option_override_internal): Delete -mvsx-small-integer.
	(rs6000_expand_vector_set): Change TARGET_VSX_SMALL_INTEGER to
	TARGET_P8_VECTOR test.
	(rs6000_secondary_reload_simple_move): Likewise.
	(rs6000_preferred_reload_class): Delete TARGET_VSX_SMALL_INTEGER,
	since TARGET_P9_VECTOR was already tested.
	(rs6000_opt_masks): Remove -mvsx-small-integer.
	* config/rs6000/vsx.md (vsx_extract_<mode>): Delete
	TARGET_VSX_SMALL_INTEGER, since a test for TARGET_P9_VECTOR was
	used.
	(vsx_extract_<mode>_p9): Delete TARGET_VSX_SMALL_INTEGER, since a
	test for TARGET_VEXTRACTUB was used, and that uses
	TARGET_P9_VECTOR.
	(p9 extract splitter): Likewise.
	(vsx_extract_<mode>_di_p9): Likewise.
	(vsx_extract_<mode>_store_p9): Likewise.
	(vsx_extract_si): Delete TARGET_VSX_SMALL_INTEGER, since a test
	for TARGET_P9_VECTOR was used.  Delete code that is now dead with
	the elimination of TARGET_VSX_SMALL_INTEGER.
	(vsx_extract_<mode>_p8): Likewise.
	(vsx_ext_<VSX_EXTRACT_I:VS_scalar>_fl_<FL_CONV:mode>): Likewise.
	(vsx_ext_<VSX_EXTRACT_I:VS_scalar>_ufl_<FL_CONV:mode>): Likewise.
	(vsx_set_<mode>_p9): Likewise.
	(vsx_set_v4sf_p9): Likewise.
	(vsx_set_v4sf_p9_zero): Likewise.
	(vsx_insert_extract_v4sf_p9): Likewise.
	(vsx_insert_extract_v4sf_p9_2): Likewise.
	* config/rs6000/rs6000.md (sign extend splitter): Change
	TARGET_VSX_SMALL_INTEGER to TARGET_P8_VECTOR test.
	(floatsi<mode>2_lfiwax_mem): Likewise.
	(floatunssi<mode>2_lfiwzx_mem): Likewise.
	(float<QHI:mode><FP_ISA3:mode>2): Delete TARGET_VSX_SMALL_INTEGER,
	since a test for TARGET_P9_VECTOR was used.
	(float<QHI:mode><FP_ISA3:mode>2_internal): Likewise.
	(floatuns<QHI:mode><FP_ISA3:mode>2): Likewise.
	(floatuns<QHI:mode><FP_ISA3:mode>2_internal): Likewise.
	(fix_trunc<mode>si2): Change TARGET_VSX_SMALL_INTEGER to
	TARGET_P8_VECTOR test.
	(fix_trunc<mode>si2_stfiwx): Likewise.
	(fix_trunc<mode>si2_internal): Likewise.
	(fix_trunc<SFDF:mode><QHI:mode>2): Delete
	TARGET_VSX_SMALL_INTEGER, since a test for TARGET_P9_VECTOR was
	used.
	(fix_trunc<SFDF:mode><QHI:mode>2_internal): Likewise.
	(fixuns_trunc<mode>si2): Change TARGET_VSX_SMALL_INTEGER to
	TARGET_P8_VECTOR test.
	(fixuns_trunc<mode>si2_stfiwx): Likewise.
	(fixuns_trunc<SFDF:mode><QHI:mode>2): Delete
	TARGET_VSX_SMALL_INTEGER, since a test for TARGET_P9_VECTOR was
	used.
	(fixuns_trunc<SFDF:mode><QHI:mode>2_internal): Likewise.
	(fctiw<u>z_<mode>_smallint): Delete TARGET_VSX_SMALL_INTEGER,
	since a test for TARGET_P9_VECTOR was used.
	(splitter for loading small constants): Likewise.

[gcc/testsuite]
2017-07-25  Michael Meissner  <meissner@linux.vnet.ibm.com>

	* gcc.target/powerpc/vsx-himode.c: Delete -mvsx-small-integer
	option.
	* gcc.target/powerpc/vsx-himode2.c: Likewise.
	* gcc.target/powerpc/vsx-himode3.c: Likewise.
	* gcc.target/powerpc/vsx-qimode.c: Likewise.
	* gcc.target/powerpc/vsx-qimode2.c: Likewise.
	* gcc.target/powerpc/vsx-qimode3.c: Likewise.
	* gcc.target/powerpc/vsx-simode.c: Likewise.
	* gcc.target/powerpc/vsx-simode2.c: Likewise.
	* gcc.target/powerpc/vsx-simode3.c: Likewise.

From-SVN: r250595

	PR libstdc++/53984
	* testsuite/27_io/basic_fstream/53984.cc: Fix test.

From-SVN: r250594

	PR go/81548
	* Makefile.am (MOSTLYCLEANFILES): Add *.sent.
	* Makefile.in: Rebuild.

From-SVN: r250593

2017-07-26  Andrew Pinski  <apinski@cavium.com>

        * config/aarch64/aarch64.c (thunderx_vector_cost): Fix
        vec_fp_stmt_cost.

From-SVN: r250592

re PR c++/71570 (ICE on invalid variable capture in cxx_incomplete_type_diagnostic, at cp/typeck2.c:55)

/cp
2017-07-26  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/71570
	* lambda.c (add_capture): Early return if we cannot capture by
	reference.

/testsuite
2017-07-26  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/71570
	* g++.dg/cpp0x/lambda/lambda-ice17.C: New.

From-SVN: r250591

	* configure.ac: Check for XCOFF32/XCOFF64.  Check for loadquery.
	* filetype.awk: Separate AIX XCOFF32 and XCOFF64.
	* xcoff.c: Add support for AIX XCOFF32 and XCOFF64 formats.
	* configure, config.h.in: Regenerate.

From-SVN: r250590

    
    Patch by Uros Bizjak.
    
    Reviewed-on: https://go-review.googlesource.com/51370

From-SVN: r250588

X86 prologue saves register at CFA offset.  Since its location on stack
is computed as CFA - its CFA_OFFSET, CFA_OFFSET points the end of the
saved register area on stack.  This patch updates sp_valid_at and
fp_valid_at to properly check saved register CFA offset.

gcc/

	PR target/81563
	* config/i386/i386.c (sp_valid_at): Properly check CFA offset.
	(fp_valid_at): Likewise.

gcc/testsuite/

	PR target/81563
	* gcc.target/i386/pr81563.c: New test

From-SVN: r250587

The special case address cost tables for Cortex-A57 and qdf24xx are no
different from the generic address cost table. We should just use the
address cost table directly. If this changes in future, a core is welcome
to add new address cost tables.

gcc/

	* config/aarch64/aarch64.c (cortexa57_addrcost_table): Remove.
	(qdf24xx_addrcost_table): Likewise.
	(cortexa57_tunings): Update to use generic_branch_cost.
	(cortexa72_tunings): Likewise.
	(cortexa73_tunings): Likewise.
	(qdf24xx_tunings): Likewise.

From-SVN: r250585

	* pt.c (do_class_deduction): Special-case deduction from a single
	element of related type.

From-SVN: r250584

        PR c++/67054 - Inherited ctor with non-default-constructible members
        * method.c (walk_field_subobs) Consider member initializers (NSDMIs)
	when deducing an inheriting constructor.

From-SVN: r250583

All the cores in AArch64 use the pair {1, 3} for their branch costs. As
that is covered by generic_branch_cost, we can just use that directly and
save the tiny amount of redundant code. If in future any core wants to
modify this, they can always add a special-case branch-cost back.

gcc/

	* config/aarch64/aarch64.c (cortexa57_branch_cost): Remove.
	(thunderx2t99_branch_cost): Likewise.
	(cortexa35_tunings): Update to use generic_branch_cost.
	(cortexa53_tunings): Likewise.
	(cortexa57_tunings): Likewise.
	(cortexa72_tunings): Likewise.
	(cortexa73_tunings): Likewise.
	(thunderx2t99_tunings): Likewise.

From-SVN: r250582

2017-07-26  Paolo Carlini  <paolo.carlini@oracle.com>

	* testsuite/27_io/basic_fstream/53984.cc: Fix typo in dg-require
	directive.

From-SVN: r250575

Add the -mfsmuld option to control the generation of the FsMULd
instruction.  In general, this instruction is available in architecture
version V8 and V9 CPUs with FPU.  Some CPUs of this category do not
support this instruction properly, e.g. AT697E, AT697F and UT699.  Some
CPUs of this category do not implement it in hardware, e.g. LEON3/4 with
GRFPU-lite.

gcc/
	* config/sparc/sparc.c (dump_target_flag_bits): Dump MASK_FSMULD.
	(sparc_option_override): Honour MASK_FSMULD.
	* config/sparc/sparc.h (MASK_FEATURES): Add MASK_FSMULD.
	* config/sparc/sparc.md (muldf3_extend): Use TARGET_FSMULD.
	* config/sparc/sparc.opt (mfsmuld): New option.
	* doc/invoke.texi (mfsmuld): Document option.

From-SVN: r250570

    gcc/testsuite/
	PR target/79041
	* gcc.target/aarch64/pr79041-2.c: Don't run in ILP32.

From-SVN: r250567

re PR middle-end/70992 (Infinite recursion between fold_build2_stat_loc and fold_binary_loc w/ -fwrapv)

	PR middle-end/70992
	* tree.c (build2_stat): Don't set TREE_CONSTANT on divisions by zero.

	* gcc.dg/overflow-warn-1.c: Adjust dg-error.
	* gcc.dg/overflow-warn-2.c: Likewise.
	* gcc.dg/overflow-warn-3.c: Likewise.
	* gcc.dg/overflow-warn-4.c: Likewise.
	* gcc.dg/torture/pr70992-2.c: New test.
	* gcc.dg/torture/pr70992.c: New test.

From-SVN: r250566

2017-07-26  Richard Biener  <rguenther@suse.de>

	* gimple-match-head.c (do_valueize): Return OP if valueize
	returns NULL_TREE.
	(get_def): New helper to get at the def stmt of a SSA name
	if valueize allows.
	* genmatch.c (dt_node::gen_kids_1): Use get_def instead of
	do_valueize to get at the def stmt.
	(dt_operand::gen_gimple_expr): Simplify do_valueize calls.

	* gcc/testsuite/gcc.dg/pr70920-2.c: Adjust for transform already
	happening in ccp1.
	* gcc/testsuite/gcc.dg/pr70920-4.c: Likewise.

From-SVN: r250565

Block auto increment on frame pointer references.  This is never
beneficial since the SFP expands into SP+C or FP+C during register
allocation.  The generated code for the testcase is now as expected:

	str	x30, [sp, -32]!
	strb	w0, [sp, 31]
	add	x0, sp, 31
	bl	foo3
	ldr	x30, [sp], 32
	ret

    gcc/
	PR middle-end/46932
	* auto-inc-dec.c (parse_add_or_inc): Block autoinc on sfp.

    gcc/testsuite/
	PR middle-end/46932
	* gcc.dg/pr46932.c: New testcase.

From-SVN: r250564

2017-07-26  Martin Liska  <mliska@suse.cz>

	PR sanitize/81186
	* function.c (expand_function_start): Make expansion of
	nonlocal_goto_save_area after parm_birth_insn.
2017-07-26  Martin Liska  <mliska@suse.cz>

	PR sanitize/81186
	* gcc.dg/asan/pr81186.c: New test.

From-SVN: r250561

All TARGET_DEFAULT defines set MASK_FPU.  There is no need to set it in
some CPU target flags enable.

gcc/
	* config/sparc/sparc.c (sparc_option_override): Remove MASK_FPU
	from all CPU target flags enable members.

From-SVN: r250557

2017-07-25  Richard Biener  <rguenther@suse.de>

	* genmatch.c (dt_simplify::gen): Make iterator vars const.
	(decision_tree::gen): Make 'type' const.
	(write_predicate): Likewise.

From-SVN: r250556

2017-07-24  Michael Meissner  <meissner@linux.vnet.ibm.com>

	* config/rs6000/rs6000.c (rs6000_init_hard_regno_mode_ok):
	Eliminate TARGET_UPPER_REGS_{DF,DI,SF} usage.
	(rs6000_option_override_internal): Likewise.
	(rs6000_expand_vector_set): Likewise.
	* config/rs6000/rs6000.h (TARGET_UPPER_REGS_DF): Delete.
	(TARGET_UPPER_REGS_SF): Likewise.
	(TARGET_UPPER_REGS_DI): Likewise.
	(TARGET_VEXTRACTUB): Eliminate TARGET_UPPER_REGS_{DF,DI,SF}.
	(TARGET_DIRECT_MOVE_64BIT): Likewise.
	* config/rs6000/rs6000.md (ALTIVEC_DFORM): Likewise.
	(float<QHI:mode><FP_ISA3:mode>2_internal): Likewise.
	(Splitters for DI constants in Altivec registers): Likewise.
	* config/rs6000/vsx.md (vsx_set_<mode>_p9): Likewise.
	(vsx_set_v4sf_p9): Likewise.
	(vsx_set_v4sf_p9_zero): Likewise.
	(vsx_insert_extract_v4sf_p9): Likewise.
	(vsx_insert_extract_v4sf_p9_2): Likewise.

From-SVN: r250555

From-SVN: r250554

gcc/ChangeLog:

2017-07-25  Carl Love  <cel@us.ibm.com>

	* doc/extend.texi: Update the built-in documentation file for the
	existing built-in functions
	vector signed char vec_cnttz (vector signed char);
	vector unsigned char vec_cnttz (vector unsigned char);
	vector signed short vec_cnttz (vector signed short);
	vector unsigned short vec_cnttz (vector unsigned short);
	vector signed int vec_cnttz (vector signed int);
	vector unsigned int vec_cnttz (vector unsigned int);
	vector signed long long vec_cnttz (vector signed long long);
	vector unsigned long long vec_cnttz (vector unsigned long long);

gcc/testsuite/ChangeLog:

2017-07-25  Carl Love  <cel@us.ibm.com>

	* gcc.target/powerpc/builtins-4-p9-runnable.c:  Add test file for
	vec_cnttz builtins.

From-SVN: r250549

    
    Add a new helper routine Type::finish_pointer_types that walks through
    the pointer type cache and looks for placeholder types that may have
    been created at some point before conversion of named types, and
    invokes Type::finish_backend() on said placeholders.  This is needed
    to handle cases where the compiler manufactures a pointer type as part
    of lowering, then a placeholder is created for it due to a call to
    Type::backend_type_size(), but there is no explicit reference to the
    type in user code.
    
    Reviewed-on: https://go-review.googlesource.com/51131

From-SVN: r250548

	PR libstdc++/53984
	* include/bits/basic_ios.h (basic_ios::_M_setstate): Adjust comment.
	* include/bits/istream.tcc (basic_istream::sentry): Handle exceptions
	during construction.
	* include/std/istream: Adjust comments for formatted input functions
	and unformatted input functions.
	* testsuite/27_io/basic_fstream/53984.cc: New.
	* testsuite/27_io/basic_istream/sentry/char/53984.cc: New.

From-SVN: r250545

	* include/bits/ios_base.h (ios_base::io_state, ios_base::open_mode)
	(ios_base::seek_dir): Remove for C++17.
	* include/std/streambuf (basic_streambuf::stossc): Remove for C++17.
	Add deprecated attribute for C++11 and C++14.
	* testsuite/27_io/types/1.cc: Don't run for C++17 and later.
	* testsuite/27_io/types/4.cc: New.

From-SVN: r250531