2017-09-26  Prathamesh Kulkarni  <prathamesh.kulkarni@linaro.org>

	* match.pd ((X / Y) == 0 -> X < Y): New pattern.
	((X / Y) != 0 -> X >= Y): Likewise.

testsuite/
	* gcc.dg/tree-ssa/cmpdiv.c: New test.

From-SVN: r253218

rs6000-c.c (P9V_BUILTIN_VEC_XL_LEN_R, [...]): Add support for builtins vector unsigned char vec_xl_len_r (unsigned char *...

gcc/ChangeLog:

2017-09-26  Carl Love  <cel@us.ibm.com>

	* config/rs6000/rs6000-c.c (P9V_BUILTIN_VEC_XL_LEN_R,
	P9V_BUILTIN_VEC_XST_LEN_R): Add support for builtins
	vector unsigned char vec_xl_len_r (unsigned char *, size_t);
	void vec_xst_len_r (vector unsigned char, unsigned char *, size_t);
	* config/rs6000/altivec.h (vec_xl_len_r, vec_xst_len_r): Add defines.
	* config/rs6000/rs6000-builtin.def (XL_LEN_R, XST_LEN_R): Add
	definitions and overloading.
	* config/rs6000/rs6000.c (altivec_expand_builtin): Add case
	statement for P9V_BUILTIN_XST_LEN_R.
	(altivec_init_builtins): Add def_builtin for P9V_BUILTIN_STXVLL.
	* config/rs6000/vsx.md (lxvll, stxvll, xl_len_r, xst_len_r): Add
	define_expand and define_insn for the instructions and builtins.
	* doc/extend.texi: Update the built-in documentation file for the new
	built-in functions.
	* config/rs6000/altivec.md (altivec_lvsl_reg, altivec_lvsr_reg): Add
	define_insn for the instructions

gcc/testsuite/ChangeLog:

2017-09-26  Carl Love  <cel@us.ibm.com>

	* gcc.target/powerpc/builtins-5-p9-runnable.c: Add new runable test
	file for the new built-ins and the existing built-ins.

From-SVN: r253217

2017-09-26  Krister Walfridsson  <krister.walfridsson@gmail.com>

	PR target/39570
	* gcc/config/netbsd-protos.h: New file.
	* gcc/config/netbsd.c: New file.
	* gcc/config/netbsd.h (SUBTARGET_INIT_BUILTINS): Define.
	* gcc/config/t-netbsd: New file.
	* gcc/config.gcc (tm_p_file): Add netbsd-protos.h.
	(tmake_file) Add t-netbsd.
	(extra_objs) Add netbsd.o.

From-SVN: r253216

From-SVN: r253215

2017-09-26  Janus Weil  <janus@gcc.gnu.org>

	PR fortran/82143
	PR fortran/82324
	* doc/sourcebuild.texi: Document fortran_real_10 and fortran_real_16.

2017-09-26  Janus Weil  <janus@gcc.gnu.org>

	PR fortran/82143
	PR fortran/82324
	* lib/target-supports.exp (check_effective_target_fortran_real_10): New.
	* gfortran.dg/promotion_3.f90: Only run if real(16) is available.
	* gfortran.dg/promotion_4.f90: Only run if real(10) is available.
	Don't assume that DOUBLE PRECISION has kind=16.

From-SVN: r253214

2017-09-26  Michael Meissner  <meissner@linux.vnet.ibm.com>

	* config/rs6000/vsx.md (vsx_xscvdpspn): Eliminate useless
	alternative constraint.
	(vsx_xscvspdpn): Likewise.
	(vsx_xscvspdpn_scalar): Likewise.

From-SVN: r253213

2017-09-26  Michael Meissner  <meissner@linux.vnet.ibm.com>

	* config/rs6000/vsx.md (vsx_xscvspdp_scalar2): Move insn so that
	it is adjacent to the other XSCVSPDP insns.

From-SVN: r253212

2017-09-26  Thomas Koenig  <tkoenig@gcc.gnu.org>

	* frontend-passes.c (do_subscript): Don't do anything
	if inside an associate list.

2017-09-26  Thomas Koenig  <tkoenig@gcc.gnu.org>

	* gfortran.dg/gomp/associate1.f90: Remove unnecessary
	warning from associate construct and do loop.

From-SVN: r253211

2017-09-26  Michael Meissner  <meissner@linux.vnet.ibm.com>

	* config/rs6000/rs6000.md (movsi_from_df): Optimize converting a
	DFmode to a SFmode, and then needing to move the SFmode to a GPR
	to use the XSCVDPSP instruction instead of FRSP and XSCVDPSPN.

From-SVN: r253210

rs6000.md (movsi_from_sf): Adjust code to eliminate doing a 32-bit shift right or vector extract after...

2017-09-26  Michael Meissner  <meissner@linux.vnet.ibm.com>

	* config/rs6000/rs6000.md (movsi_from_sf): Adjust code to
	eliminate doing a 32-bit shift right or vector extract after doing
	XSCVDPSPN.  Use zero_extendsidi2 instead of p8_mfvsrd_4_disf to
	move the value to the GPRs.
	(movdi_from_sf_zero_ext): Likewise.
	(reload_gpr_from_vsxsf): Likewise.
	(p8_mfvsrd_4_disf): Delete, no longer used.

From-SVN: r253209

rs6000.md (extendsi<mode>2): Add a splitter to do sign extension from a vector register to a GPR by doing a...

2017-09-26  Michael Meissner  <meissner@linux.vnet.ibm.com>

	* config/rs6000/rs6000.md (extendsi<mode>2): Add a splitter to do
	sign extension from a vector register to a GPR by doing a 32-bit
	direct move and then an EXTSW.
	(extendsi<mode>2 splitter): Likewise.

From-SVN: r253208

2017-09-26  Martin Jambor  <mjambor@suse.cz>

	* tree-sra.c (compare_access_positions): Put integral types first,
	stabilize sorting of integral types, remove conditions putting
	non-full-precision integers last.
	(sort_and_splice_var_accesses): Disable scalarization if a
	non-integert would be represented by a non-full-precision integer.

From-SVN: r253207

2017-09-26  Thomas Koenig  <tkoenig@gcc.gnu.org>

	* gfortran.dg/gomp/associate1.f90: Really commit change
	from 2017-09-25.
	* gfortran.dg/predcom-1.f: Likewise.
	* gfortran.dg/unconstrained_commons.f: Likewise.

From-SVN: r253206

Building glibc for many different configurations and running the
compilation parts of the testsuite runs into failures of the
elf/check-execstack test for hppa and microblaze.  Those
configurations default to executable stacks in the Linux kernel
because of VM_DATA_DEFAULT_FLAGS definitions including VM_EXEC
(VM_DATA_DEFAULT_FLAGS being the default definition of
VM_STACK_DEFAULT_FLAGS).

This fails because those configurations are not generating
.note.GNU-stack sections to indicate that programs do not need an
executable stack.  This patch fixes GCC to generate those sections on
those architectures (when configured for a target using the Linux
kernel), as it does on other architectures, together with adding that
section to libgcc .S sources, with the same code as used on other
architectures (or a variant using "#ifdef __linux__" instead of the
usual "#if defined(__ELF__) && defined(__linux__)" for microblaze, as
that configuration doesn't use elfos.h and so doesn't define __ELF__).

This suffices to eliminate that glibc test failure.  (For hppa, the
compilation parts of the glibc testsuite still fail because of the
separate elf/check-textrel failure.)

gcc:
	* config/microblaze/linux.h (TARGET_ASM_FILE_END): Likewise.
	* config/pa/pa.h (NEED_INDICATE_EXEC_STACK): Likewise.
	* config/pa/pa-linux.h (NEED_INDICATE_EXEC_STACK): Likewise.
	* config/pa/pa.c (pa_hpux_file_end): Rename to pa_file_end.
	Define unconditionally, with [ASM_OUTPUT_EXTERNAL_REAL]
	conditionals inside the function instead of around it.  Call
	file_end_indicate_exec_stack if NEED_INDICATE_EXEC_STACK.
	(TARGET_ASM_FILE_END): Define unconditionally to pa_file_end.

libgcc:
	* config/microblaze/crti.S, config/microblaze/crtn.S,
	config/microblaze/divsi3.S, config/microblaze/moddi3.S,
	config/microblaze/modsi3.S, config/microblaze/muldi3_hard.S,
	config/microblaze/mulsi3.S,
	config/microblaze/stack_overflow_exit.S,
	config/microblaze/udivsi3.S, config/microblaze/umodsi3.S,
	config/pa/milli64.S: Add .note.GNU-stack section.

From-SVN: r253204

2017-09-26  Richard Biener  <rguenther@suse.de>

	* graphite-scop-detection.c (scop_detection::build_scop_depth): Rewrite,
	fold in ...
	(scop_detection::build_scop_breadth): ... this.  Removed.
	(scop_detection::loop_is_valid_in_scop): Fold into single caller.
	(scop_detection::harmful_stmt_in_bb): Likewise.
	(scop_detection::graphite_can_represent_stmt): Likewise.
	(scop_detection::loop_body_is_valid_scop): Likewise.  Remove recursion.
	(scop_detection::can_represent_loop): Remove recursion, fold in ...
	(scop_detection::can_represent_loop_1): ... this.  Removed.
	(scop_detection::harmful_loop_in_region): Simplify after inlining
	the above and remove more quadraticness.
	(build_scops): Adjust.
	* tree-data-ref.c (loop_nest_has_data_refs): Remove pointless
	quadraticness.

From-SVN: r253203

re PR target/82267 (x32: unnecessary address-size prefixes.  Why isn't -maddress-mode=long the default?)

	PR target/82267
	* config/i386/i386.c (ix86_print_operand_address_as): Only test
	REGNO (base) == SP_REG if base is a REG.

From-SVN: r253202

re PR middle-end/35691 (Missed (a == 0) && (b == 0) into (a|(typeof(a)(b)) == 0 when the types don't match)

	PR middle-end/35691
	* tree-ssa-reassoc.c (update_range_test): Dump r->exp each time
	if it is different SSA_NAME.
	(optimize_range_tests_cmp_bitwise): New function.
	(optimize_range_tests): Call it.

	* gcc.dg/pr35691-5.c: New test.
	* gcc.dg/pr35691-6.c: New test.

From-SVN: r253201

From-SVN: r253200

2017-09-26  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/82321
	* graphite.c (canonicalize_loop_closed_ssa): Properly check
	for the def being inside the loop.

	* gcc.dg/graphite/pr82321.c: New testcase.

From-SVN: r253199

gcc/ChangeLog:

2017-09-26  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>

	* config/s390/vx-builtins.md ("vmslg"): Add missing operand in
	assembler output.
	* config/s390/s390-builtins.def: Fix constraint on op4.

From-SVN: r253198

V2DF mode was still hard-coded here.

gcc/ChangeLog:

2017-09-26  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>

	* config/s390/s390.c (s390_expand_vec_compare): Use the new mode
	independent expanders.
	* config/s390/vector.md ("vec_cmpuneq", "vec_cmpltgt")
	("vec_ordered", "vec_unordered"): New expanders.

From-SVN: r253197

gcc/ChangeLog:

2017-09-26  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>

	* config/s390/s390.c (s390_preferred_simd_mode): Return V4SFmode
	for SFmode.

From-SVN: r253196

gcc/ChangeLog:

2017-09-26  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>

	* config/s390/vector.md ("vec_unpacks_low_v16qi"): Rename to
	vec_unpacks_lo_v16qi.
	("vec_unpacku_low_v16qi"): Rename to vec_unpacku_lo_v16qi.

From-SVN: r253195

gcc/ChangeLog:

2017-09-26  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>

	* config/s390/vector.md ("vec_unpacks_lo_v4sf")
	("vec_unpacks_hi_v4sf", "vec_unpacks_lo_v2df")
	("vec_unpacks_hi_v2df", "vec_pack_trunc_v2df"): New expanders.

From-SVN: r253194

gcc/ChangeLog:

2017-09-26  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>

	* config/s390/predicates.md ("const_shift_by_byte_operand"): New
	predicate.
	* config/s390/vector.md ("*vec_srb<mode>"): Change modes to V_128
	and V16QI.
	("*vec_slb<mode>"): New insn pattern.
	("vec_shr_<mode>"): New expander.
	* config/s390/vx-builtins.md ("vec_slb<mode>"): Turn into expander
	and force the shift count operand to V16QImode.
	("vec_srb<mode>"): Set shift count mode to V16QI.

From-SVN: r253193

Add support for widening vector multiply lo/hi patterns.  These do not
directly match on IBM Z instructions but can be emulated with even/odd
+ vector merge.

gcc/ChangeLog:

2017-09-26  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>

	* config/s390/vector.md ("vec_widen_umult_lo_<mode>")
	("vec_widen_umult_hi_<mode>", "vec_widen_smult_lo_<mode>")
	("vec_widen_smult_hi_<mode>"): New expander definitions.

From-SVN: r253192

Add s390 platform checks where appropriate.

gcc/testsuite/ChangeLog:

2017-09-26  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>

	* lib/target-supports.exp: Enable tests for S/390.

From-SVN: r253191

The new option processing machinery relies on %< rules in the specs to
suppress options that are rewritten.  Suppression appears to be a two
phase process where the option is partially suppressed when %< is
processed and then fully suppressed at the end of the string.  Strings
are separated by commas and there can be multiple strings used to form
DRIVER_SELF_SPECS.

The fix in this case is to separate the driver self specs for ARM into
separate rules as described; this forces the -m{cpu,tune,arch}=native
options to be properly removed before proceeding to the next rule set.

	PR target/82175
	* config/arm/arm.h (DRIVER_SELF_SPECS): Separate sub-rules with commas.

From-SVN: r253189

2017-09-26  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/82320
	* tree-ssa-sccvn.c (set_ssa_val_to): Changing undef to undef
	isn't a change.

	* gcc.dg/torture/pr82320.c: New testcase.

From-SVN: r253188

2017-09-26  Christophe Lyon  <christophe.lyon@linaro.org>

	* lib/target-supports.exp (check_effective_target_vect_hw_misalign):
	Fix arm check.

From-SVN: r253187

	PR demangler/82195
	* cp-demangle.c (d_encoding): Strip return type when name is a
	LOCAL_NAME.
	(d_local_name): Strip return type of enclosing TYPED_NAME.
	* testsuite/demangle-expected: Add and adjust tests.

From-SVN: r253186

From-SVN: r253185

	* config/rs6000/rs6000-protos.h (output_probe_stack_range): Update
	prototype for new argument.
	* config/rs6000/rs6000.c (rs6000_emit_allocate_stack_1): New function,
	mostly extracted from rs6000_emit_allocate_stack.
	(rs6000_emit_probe_stack_range_stack_clash): New function.
	(rs6000_emit_allocate_stack): Call
	rs6000_emit_probe_stack_range_stack_clash as needed.
	(rs6000_emit_probe_stack_range): Add additional argument
	to call to gen_probe_stack_range{si,di}.
	(output_probe_stack_range): New.
	(output_probe_stack_range_1): Renamed from output_probe_stack_range.
	(output_probe_stack_range_stack_clash): New.
	(rs6000_emit_prologue): Emit notes into dump file as requested.
	* rs6000.md (allocate_stack): Handle -fstack-clash-protection.
	(probe_stack_range<P:mode>): Operand 0 is now early-clobbered.
	Add additional operand and pass it to output_probe_stack_range.

	* lib/target-supports.exp
	(check_effective_target_supports_stack_clash_protection): Enable for
	rs6000 and powerpc targets.

From-SVN: r253179

re PR tree-optimization/82163 (ICE on valid code at -O3 on x86_64-linux-gnu: in check_loop_closed_ssa_use, at tree-ssa-loop-manip.c:707)

	PR tree-optimization/82163
	* tree-ssa-loop-manip.h (verify_loop_closed_ssa): New parameter.
	(checking_verify_loop_closed_ssa): New parameter.
	* tree-ssa-loop-manip.c (check_loop_closed_ssa_use): Delete.
	(check_loop_closed_ssa_stmt): Delete.
	(check_loop_closed_ssa_def, check_loop_closed_ssa_bb): New functions.
	(verify_loop_closed_ssa): Check loop closed ssa form for LOOP.
	(tree_transform_and_unroll_loop): Check loop closed ssa form only for
	changed loops.

	gcc/testsuite
	* gcc.dg/tree-ssa/pr82163.c: New test.

From-SVN: r253161

* brig-builtins.def: Treat HSAIL barrier builtins as
  setjmp/longjump style functions.

* brigfrontend/brig-to-generic.cc: Ensure per WI copies of
  private variables are aligned too.

* rt/workitems.c: Assume the host runtime allocates the work group
  memory.

From-SVN: r253160

2017-09-25  Thomas Koenig  <tkoenig@gcc.gnu.org>

	* lang.opt:  Add -Wdo-subscript.
	* frontend-passes.c (do_t): New type.
	(doloop_list): Use variable of do_type.
	(if_level): Variable to track if levels.
	(select_level): Variable to track select levels.
	(gfc_run_passes): Initialize i_level and select_level.
	(doloop_code): Record current level of if + select
	level in doloop_list.  Add seen_goto if there could
	be a branch outside the loop. Use different type for
	doloop_list.
	(doloop_function): Call do_intent and do_subscript; move
	functionality of checking INTENT to do_intent.
	(insert_index_t): New type, for callback_insert_index.
	(callback_insert_index): New function.
	(insert_index): New function.
	(do_subscript): New function.
	(do_intent): New function.
	(gfc_code_walker): Keep track of if_level and select_level.
	* invoke.texi: Document -Wdo-subscript.

2017-09-25  Thomas Koenig  <tkoenig@gcc.gnu.org>

	* gfortran.dg/do_subscript_1.f90: New test.
	* gfortran.dg/do_subscript_2.f90: New test.
	* gfortran.dg/gomp/associate1.f90: Add out of bounds warning.
	* gfortran.dg/predcom-1.f: Adjust loop bounds.
	* gfortran.dg/unconstrained_commons.f: Add out of bounds warning.

From-SVN: r253156

The definition:

  #define CONSTANT_ALIGNMENT(EXP, ALIGN) \
    (TREE_CODE (EXP) == STRING_CST \
     && (ALIGN) < BITS_PER_WORD ? BITS_PER_WORD : (ALIGN))

was very common, so the patch adds a canned definition for that,
called constant_alignment_word_strings.  Some ports had a variation
that used a port-local FASTEST_ALIGNMENT instead of BITS_PER_WORD;
the patch uses constant_alignment_word_strings if FASTEST_ALIGNMENT
was always BITS_PER_WORD and a port-local hook function otherwise.

2017-09-25  Richard Sandiford  <richard.sandiford@linaro.org>

gcc/
	* target.def (constant_alignment): New hook.
	* defaults.h (CONSTANT_ALIGNMENT): Delete.
	* doc/tm.texi.in (CONSTANT_ALIGNMENT): Replace with...
	(TARGET_CONSTANT_ALIGNMENT): ...this new hook.
	* doc/tm.texi: Regenerate.
	* targhooks.h (default_constant_alignment): Declare.
	(constant_alignment_word_strings): Likewise.
	* targhooks.c (default_constant_alignment): New function.
	(constant_alignment_word_strings): Likewise.
	* builtins.c (get_object_alignment_2): Use targetm.constant_alignment
	instead of CONSTANT_ALIGNMENT.
	* varasm.c (align_variable, get_variable_align, build_constant_desc)
	(force_const_mem): Likewise.
	* config/aarch64/aarch64.h (CONSTANT_ALIGNMENT): Delete.
	* config/aarch64/aarch64.c (aarch64_constant_alignment): New function.
	(aarch64_classify_address): Call it instead of CONSTANT_ALIGNMENT.
	(TARGET_CONSTANT_ALIGNMENT): Redefine.
	* config/alpha/alpha.h (CONSTANT_ALIGNMENT): Delete commented-out
	definition.
	* config/arc/arc.h (CONSTANT_ALIGNMENT): Delete.
	* config/arc/arc.c (TARGET_CONSTANT_ALIGNMENT): Redefine to
	constant_alignment_word_strings.
	* config/arm/arm.h (CONSTANT_ALIGNMENT_FACTOR): Delete.
	(CONSTANT_ALIGNMENT): Likewise.
	* config/arm/arm.c (TARGET_CONSTANT_ALIGNMENT): Redefine.
	(arm_constant_alignment): New function.
	* config/bfin/bfin.h (CONSTANT_ALIGNMENT): Delete.
	* config/bfin/bfin.c (TARGET_CONSTANT_ALIGNMENT): Redefine to
	constant_alignment_word_strings.
	* config/cr16/cr16.h (CONSTANT_ALIGNMENT): Delete.
	* config/cr16/cr16.c (TARGET_CONSTANT_ALIGNMENT): Redefine to
	constant_alignment_word_strings.
	* config/cris/cris.h (CONSTANT_ALIGNMENT): Delete.
	* config/cris/cris.c (TARGET_CONSTANT_ALIGNMENT): Redefine.
	(cris_constant_alignment): New function.
	* config/epiphany/epiphany.h (CONSTANT_ALIGNMENT): Delete.
	* config/epiphany/epiphany.c (TARGET_CONSTANT_ALIGNMENT): Redefine.
	(epiphany_constant_alignment): New function.
	* config/fr30/fr30.h (CONSTANT_ALIGNMENT): Delete.
	* config/fr30/fr30.c (TARGET_CONSTANT_ALIGNMENT): Redefine to
	constant_alignment_word_strings.
	* config/frv/frv.h (CONSTANT_ALIGNMENT): Delete.
	* config/frv/frv.c (TARGET_CONSTANT_ALIGNMENT): Redefine to
	constant_alignment_word_strings.
	* config/ft32/ft32.h (CONSTANT_ALIGNMENT): Delete.
	* config/ft32/ft32.c (TARGET_CONSTANT_ALIGNMENT): Redefine to
	constant_alignment_word_strings.
	* config/i386/i386.h (CONSTANT_ALIGNMENT): Delete.
	* config/i386/i386-protos.h (ix86_constant_alignment): Delete.
	* config/i386/i386.c (ix86_constant_alignment): Make static.
	Use the same interface as the target hook.
	(TARGET_CONSTANT_ALIGNMENT): Redefine.
	* config/ia64/ia64.h (CONSTANT_ALIGNMENT): Delete.
	* config/ia64/ia64.c (TARGET_CONSTANT_ALIGNMENT): Redefine to
	constant_alignment_word_strings.
	* config/iq2000/iq2000.h (CONSTANT_ALIGNMENT): Delete.
	* config/iq2000/iq2000.c (iq2000_constant_alignment): New function.
	(TARGET_CONSTANT_ALIGNMENT): Redefine.
	* config/lm32/lm32.h (CONSTANT_ALIGNMENT): Delete.
	* config/lm32/lm32.c (TARGET_CONSTANT_ALIGNMENT): Redefine to
	constant_alignment_word_strings.
	* config/m32r/m32r.h (CONSTANT_ALIGNMENT): Delete.
	* config/m32r/m32r.c (TARGET_CONSTANT_ALIGNMENT): Redefine to
	constant_alignment_word_strings.
	* config/mcore/mcore.h (CONSTANT_ALIGNMENT): Delete.
	* config/mcore/mcore.c (TARGET_CONSTANT_ALIGNMENT): Redefine to
	constant_alignment_word_strings.
	* config/microblaze/microblaze.h (CONSTANT_ALIGNMENT): Delete.
	* config/microblaze/microblaze.c (microblaze_constant_alignment):
	New function.
	(TARGET_CONSTANT_ALIGNMENT): Redefine.
	* config/mips/mips.h (CONSTANT_ALIGNMENT): Delete.
	* config/mips/mips.c (mips_constant_alignment): New function.
	(TARGET_CONSTANT_ALIGNMENT): Redefine.
	* config/mmix/mmix.h (CONSTANT_ALIGNMENT): Delete.
	* config/mmix/mmix-protos.h (mmix_constant_alignment): Delete.
	* config/mmix/mmix.c (TARGET_CONSTANT_ALIGNMENT): Redefine.
	(mmix_constant_alignment): Make static.  Use the same interface
	as the target hook.
	* config/moxie/moxie.h (CONSTANT_ALIGNMENT): Delete.
	* config/moxie/moxie.c (TARGET_CONSTANT_ALIGNMENT): Redefine to
	constant_alignment_word_strings.
	* config/nios2/nios2.h (CONSTANT_ALIGNMENT): Delete.
	* config/nios2/nios2.c (TARGET_CONSTANT_ALIGNMENT): Redefine to
	constant_alignment_word_strings.
	* config/pa/pa.h (CONSTANT_ALIGNMENT): Delete.
	* config/pa/pa.c (TARGET_CONSTANT_ALIGNMENT): Redefine to
	constant_alignment_word_strings.
	* config/powerpcspe/powerpcspe.h (CONSTANT_ALIGNMENT): Delete.
	* config/powerpcspe/powerpcspe.c (TARGET_CONSTANT_ALIGNMENT): Redefine.
	(rs6000_constant_alignment): New function.
	* config/riscv/riscv.h (CONSTANT_ALIGNMENT): Delete.
	* config/riscv/riscv.c (riscv_constant_alignment): New function.
	(TARGET_CONSTANT_ALIGNMENT): Redefine.
	* config/rs6000/rs6000.h (CONSTANT_ALIGNMENT): Delete.
	* config/rs6000/rs6000.c (TARGET_CONSTANT_ALIGNMENT): Redefine.
	(rs6000_constant_alignment): New function.
	* config/s390/s390.h (CONSTANT_ALIGNMENT): Delete.
	* config/s390/s390.c (s390_constant_alignment): New function.
	(TARGET_CONSTANT_ALIGNMENT): Redefine.
	* config/sh/sh.h (CONSTANT_ALIGNMENT): Delete.
	* config/sh/sh.c (TARGET_CONSTANT_ALIGNMENT): Redefine to
	constant_alignment_word_strings.
	* config/sparc/sparc.h (CONSTANT_ALIGNMENT): Delete.
	* config/sparc/sparc.c (TARGET_CONSTANT_ALIGNMENT): Redefine.
	(sparc_constant_alignment): New function.
	* config/spu/spu.h (CONSTANT_ALIGNMENT): Delete.
	* config/spu/spu.c (spu_constant_alignment): New function.
	(TARGET_CONSTANT_ALIGNMENT): Redefine.
	* config/stormy16/stormy16.h (CONSTANT_ALIGNMENT): Delete.
	* config/stormy16/stormy16.c (TARGET_CONSTANT_ALIGNMENT): Redefine to
	constant_alignment_word_strings.
	* config/tilegx/tilegx.h (CONSTANT_ALIGNMENT): Delete.
	* config/tilegx/tilegx.c (TARGET_CONSTANT_ALIGNMENT): Redefine to
	constant_alignment_word_strings.
	* config/tilepro/tilepro.h (CONSTANT_ALIGNMENT): Delete.
	* config/tilepro/tilepro.c (TARGET_CONSTANT_ALIGNMENT): Redefine to
	constant_alignment_word_strings.
	* config/visium/visium.h (CONSTANT_ALIGNMENT): Delete.
	* config/visium/visium.c (TARGET_CONSTANT_ALIGNMENT): Redefine.
	(visium_constant_alignment): New function.
	* config/xtensa/xtensa.h (CONSTANT_ALIGNMENT): Delete.
	* config/xtensa/xtensa.c (TARGET_CONSTANT_ALIGNMENT): Redefine.
	(xtensa_constant_alignment): New function.
	* system.h (CONSTANT_ALIGNMENT): Poison.

From-SVN: r253154

	PR c/81854
	* src/c++98/complex_io.cc (_GLIBCXX_LDBL_COMPAT): Declare alias
	target as a C++ function with no prototype.

From-SVN: r253153

rs6000.c (rs6000_gimple_fold_builtin): Add handling for early folding of vector stores (ALTIVEC_BUILTIN_ST_*).

[gcc]

2017-09-25  Will Schmidt  <will_schmidt@vnet.ibm.com>

	* config/rs6000/rs6000.c (rs6000_gimple_fold_builtin): Add handling
	for early folding of vector stores (ALTIVEC_BUILTIN_ST_*).
	(rs6000_builtin_valid_without_lhs): New helper function.
	* config/rs6000/rs6000-c.c (altivec_resolve_overloaded_builtin):
	Remove obsoleted code for handling ALTIVEC_BUILTIN_VEC_ST.

From-SVN: r253152

[gcc/testsuite]

2017-09-25  Will Schmidt  <will_schmidt@vnet.ibm.com>

    * gcc.target/powerpc/fold-vec-st-char.c: New.
    * gcc.target/powerpc/fold-vec-st-double.c: New.
    * gcc.target/powerpc/fold-vec-st-float.c: New.
    * gcc.target/powerpc/fold-vec-st-int.c: New.
    * gcc.target/powerpc/fold-vec-st-longlong.c: New.
    * gcc.target/powerpc/fold-vec-st-pixel.c: New.
    * gcc.target/powerpc/fold-vec-st-short.c: New.

From-SVN: r253151