From-SVN: r233194

	PR tree-optimization/68541
	* gimple-ssa-split-paths.c: Include tree-cfg.h and params.h.
	(count_stmts_in_block): New function.
	(poor_ifcvt_candidate_code): Likewise.
	(is_feasible_trace): Add some heuristics to determine when path
	splitting is profitable.
	(find_block_to_duplicate_for_splitting_paths): Make sure the graph
	is a diamond with a single exit.

        PR tree-optimization/68541
	* gcc.dg/tree-ssa/split-path-2.c: New test.
	* gcc.dg/tree-ssa/split-path-3.c: New test.
	* gcc.dg/tree-ssa/split-path-4.c: New test.
	* gcc.dg/tree-ssa/split-path-5.c: New test.
	* gcc.dg/tree-ssa/split-path-6.c: New test.
	* gcc.dg/tree-ssa/split-path-7.c: New test.

From-SVN: r233191

gcc/testsuite/ChangeLog:
	PR c++/69662
	* g++.dg/warn/Wplacement-new-size-1.C: New test.
	* g++.dg/warn/Wplacement-new-size-2.C: New test.

gcc/cp/ChangeLog:
	PR c++/69662
	* init.c (find_field_init): New function.
	(warn_placement_new_too_small): Call it.  Handle one-element arrays
        at ends of structures special.

gcc/c-family/ChangeLog:
	PR c++/69662
	* c.opt (Warning options): Update -Wplacement-new to take
        an optional argument.

gcc/ChangeLog:
	PR c++/69662
	* doc/invoke.texi: Update -Wplacement-new to take an optional
        argument.

From-SVN: r233190

PR c/69643

  * tree.c (tree_nop_conversion_p): Do not strip casts into or
  out of non-standard address spaces.
testsuite/
  * gcc.target/i386/addr-space-4.c: New.
  * gcc.target/i386/addr-space-5.c: New.

From-SVN: r233189

	PR fortran/66089
gcc/fortran/
	* trans-expr.c (expr_is_variable, gfc_expr_is_variable): Rename
	the former to the latter and make it non-static.  Update callers.
	* gfortran.h (gfc_expr_is_variable): New declaration.
	(struct gfc_ss_info): Add field needs_temporary.
	* trans-array.c (gfc_scalar_elemental_arg_saved_as_argument):
	Tighten the condition on aggregate expressions with a check
	that the expression is a variable and doesn't need a temporary.
	(gfc_conv_resolve_dependency): Add intermediary reference variable.
	Set the needs_temporary field.
gcc/testsuite/
	* gfortran.dg/elemental_dependency_6.f90: New.

From-SVN: r233188

	PR rtl-optimization/69691
	* lra-eliminations.c (move_plus_up): Don't add the addend twice.

	* gcc.c-torture/execute/pr69691.c: New test.

From-SVN: r233187

re PR c++/69628 (Conditional jump or move depends on uninitialised value(s) in lex_charconst(cpp_token const*) (c-lex.c:1252))

	PR c++/69628
	* charset.c (cpp_interpret_charconst): Clear *PCHARS_SEEN
	and *UNSIGNEDP if bailing out early due to errors.

	* g++.dg/parse/pr69628.C: New test.

From-SVN: r233186

	* semantics.c (finish_expr_stmt): If expr is error_mark_node,
	make sure we've seen_error().

From-SVN: r233183

	* gcc.dg/sancov/asan.c: Move to ...
	* gcc.dg/asan/sancov-1.c: ... here.

From-SVN: r233182

	* gcc.target/i386/pr69577.c: Require avx_runtime target.

From-SVN: r233181

	PR target/69677
	* gcc.target/i386/pr69677.c: New test.

From-SVN: r233180

	* config/rs6000/crypto.md (crypto_vpermxor_<mode>): Correct insn type.
	* config/rs6000/rs6000.md (mov<mode>_hardfloat): Likewise.
	(*ieee128_mfvsrd_64bit): Likewise.
	(*ieee128_mfvsrd_32bit): Likewise.

From-SVN: r233179

gcc/

2016-02-05  Ilya Enkovich  <enkovich.gnu@gmail.com>

	PR target/69369
	Revert r232560:
	2016-01-19  Jan Hubicka  <hubicka@ucw.cz>

	* cgraphunit.c (cgraph_node::reset): Clear thunk info and
	instrumented_version.

From-SVN: r233177

gcc/cp/ChangeLog:

	PR c++/68948
	* pt.c (tsubst_baselink): Diagnose an invalid constructor call
	if lookup_fnfields returns NULL_TREE and the name being looked
	up has the form A::A.

gcc/testsuite/ChangeLog:

	PR c++/68948
	* g++.dg/template/pr68948.C: New test.

From-SVN: r233176

invoke.texi (Optimize Options): In table of --param options rename second occurrence of tracer-min-branch-ratio...

2016-01-05  Jeremy Bennett  <jeremy.bennett@embecosm.com>

        * doc/invoke.texi (Optimize Options): In table of --param options
        rename second occurrence of tracer-min-branch-ratio to
        tracer-min-branch-probability, rename
        tracer-min-branch-ratio-feedback to
        tracer-min-branch-probability-feedback and clarify description,
        rename sched-spec-state-edge-prob-cutoff to
        sched-state-edge-prob-cutoff, rename selsched-max-insns-to-rename
        to selsched-insns-to-rename, rename lto-minpartition to
        lto-min-partition, delete reorder-blocks-duplicate and
        reorder-blocks-duplicate-feedback.

From-SVN: r233175

From-SVN: r233174

gcc/ChangeLog:

2016-02-05  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>

	* config/s390/s390.c (s390_register_info_set_ranges): Remove
	superfluous loops.

From-SVN: r233173

gcc/ChangeLog

	* doc/extend.texi: S/390: Correct some typos.

From-SVN: r233172

gcc/testsuite/ChangeLog

	* gcc.dg/tree-ssa/ssa-dom-cse-2.c: Remove -march=z13 for s390
	(only necessary on s390x).

From-SVN: r233171

The attached patch copies the existing 
libstdc++-v3/config/abi/post/s390-linux-gnu/baseline_symbols.txt
to .../s390x-linux-gnu/32/baseline_symbols.txt.  This fixes the
abi test failure on s390x with -m31.

libstdc++-v3/ChangeLog

	* config/abi/post/s390x-linux-gnu/32/baseline_symbols.txt (FUNC):
	New file.  Copied over from s390-linux-gnu.

From-SVN: r233170

This fixes a problem revealed during the split-stack work:
https://gcc.gnu.org/ml/gcc-patches/2016-02/msg00322.html

gcc/ChangeLog:

2016-02-05  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>

	* config/s390/s390.c (s390_emit_call): Add missing 64 bit check.

From-SVN: r233169

This patch fixes a problem introduced with the GPR into FPR slot save
feature for leaf functions.

r6 is argument register as well as call-saved.  Currently we might
decide that it will be a candidate for being saved into an FPR.  If it
turns out later that r6 also needs to be saved due to being required
for vararg we undo the FPR save decision and put it on the stack
again.  Unfortunately the code did not adjust the GPR restore range
accordingly so that the register does not get restored in the load
multiple.

This fixes the following testcases on s390x:

< FAIL: libgomp.c/doacross-1.c execution test
< FAIL: libgomp.c/doacross-2.c execution test
< FAIL: libgomp.c/doacross-3.c execution test
< FAIL: libgomp.c++/doacross-1.C execution test

gcc/ChangeLog:

2016-02-05  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>

	    PR target/69625
	    * config/s390/s390.c (SAVE_SLOT_NONE, SAVE_SLOT_STACK): New
	    defines.
	    (s390_register_info_gprtofpr): Use new macros above.
	    (s390_register_info_stdarg_fpr): Adjust max_fpr to better match
	    its name.
	    (s390_register_info_stdarg_gpr): Adjust max_gpr to better match
	    its name.  Adjust restore and save gpr ranges.
	    (s390_register_info_set_ranges): New function.
	    (s390_register_info): Use new macros above.  Call
	    s390_register_info_set_ranges.
	    (s390_optimize_register_info): Likewise.
	    (s390_hard_regno_rename_ok): Use new macros.
	    (s390_hard_regno_scratch_ok): Likewise.
	    (s390_emit_epilogue): Likewise.
	    (s390_can_use_return_insn): Likewise.
	    (s390_optimize_prologue): Likewise.
	    * config/s390/s390.md (GPR2_REGNUM, GPR6_REGNUM): New constants.

From-SVN: r233168

	PR bootstrap/69677
	* config/i386/i386.c (convert_scalars_to_vector): Readd stack
	alignment fixes.
	(ix86_option_override_internal): Disable TARGET_STV even for
	-m{incoming,preferred}-stack-boundary=3.

From-SVN: r233167

2016-02-04  H.J. Lu  <hongjiu.lu@intel.com>

	* gcc.target/i386/pr69454-2.c: Compile with -msse2
	-mno-accumulate-outgoing-args.

From-SVN: r233166

gcc/ChangeLog:

2016-02-03  Trevor Saunders  <tbsaunde+gcc@tbsaunde.org>

	* config.gcc: Mark deprecated rtems targets as obsolete.

From-SVN: r233165

From-SVN: r233164

	PR libstdc++/69626
	* acinclude.m4 (GLIBCXX_ENABLE_C99): Check C99 stdlib.h functions
	with -std=c++98 and define _GLIBCXX98_USE_C99_STDLIB.
	* config.h.in: Regenerate.
	* configure: Regenerate.
	* testsuite/21_strings/c_strings/char/69626.cc: New.

From-SVN: r233161

As it happens the patch I did over a year ago for PR64682 isn't quite
correct.  This is PR69567.  This fixes it.


	PR rtl-optimization/64682
	PR rtl-optimization/69567
	* combine.c (distribute_notes) <REG_DEAD>: Place the death note
	before I2 only if the register is both used and set in I2.

From-SVN: r233159

gcc/cp/ChangeLog:

	* constexpr.c (cxx_eval_binary_expression): Fold equality
	comparisons involving PTRMEM_CSTs.

gcc/testsuite/ChangeLog:

	* g++.dg/cpp0x/constexpr-ptrmem5.C: New test.

From-SVN: r233158

From-SVN: r233157

    
    Reviewed-on: https://go-review.googlesource.com/19233

From-SVN: r233156

	PR c/69669
	* c-decl.c (finish_enum): When honoring mode attribute,
	make sure to use proper TYPE_MIN_VALUE and TYPE_MAX_VALUE.

	* c-c++-common/pr69669.c: New test.

From-SVN: r233154

re PR fortran/69368 (spec2006 test case 416.gamess fails with the g++ 6.0 compiler starting with r232508)

	PR fortran/69368
	* tree-dfa.c (get_ref_base_and_extent): Remove unreachable code.

From-SVN: r233153

re PR target/69577 (wrong code with -fno-forward-propagate -mavx and 128bit arithmetics since r215450)

	PR rtl-optimization/69577
	Revert:
	2015-10-29  Richard Henderson  <rth@redhat.com>

	PR target/68124
	PR rtl-opt/67609
	* config/i386/i386.c (ix86_cannot_change_mode_class): Tighten
	sse check to the exact conditions of PR 67609.

From-SVN: r233152

	* doc/html/index.html: Regenerate.

From-SVN: r233151

	* doc/xml/manual/containers.xml: Add cross-reference to Dual ABI.
	* doc/xml/manual/spine.xml: Update copyright years and author blurb.
	* doc/html/*: Regenerate.

From-SVN: r233150

re PR target/69667 (ppc64le -mlra: ICE: Max. number of generated reload insns per insn is achieved (90))

[gcc]
2016-02-04  Michael Meissner  <meissner@linux.vnet.ibm.com>

	PR target/69667
	* config/rs6000/rs6000.md (mov<mode>_64bit_dm): Use 'd' constraint
	instead of 'ws', and 'wh' instead of 'wm' since TFmode/IFmode are
	not allowed into the traditional Altivec registers.
	(movtd_64bit_nodm): Likewise.
	(mov<mode>_32bit, FMOVE128_FPR iterator): Likewise.

[gcc/testsuite]
2016-02-04  Michael Meissner  <meissner@linux.vnet.ibm.com>

	PR target/69667
	* g++.dg/pr69667.C: New file.

From-SVN: r233147

gcc/ChangeLog:
	* config/aarch64/cortex-a57-fma-steering.c
	(aarch64_register_fma_steering): Remove "static" from arguments
	to register_pass.

From-SVN: r233146

This patch fixes an exponential issue in ccmp.c.  When deciding which ccmp
expansion to use, the tree nodes gs0 and gs1 are fully expanded twice.  If
they contain more CCMP opportunities, their subtrees are also expanded twice.
When the trees are complex the expansion takes exponential time and memory.
As a workaround in GCC6 compute the cost of the first expansion early, and
only try the alternative expansion if the cost is low enough.  This rarely
affects real code, eg. SPECINT2006 has identical codesize.

2016-02-04  Wilco Dijkstra  <wdijkstr@arm.com>

    gcc/
	PR target/69619
	* ccmp.c (expand_ccmp_expr_1): Avoid evaluating gs0/gs1
	twice when complex.

    gcc/testsuite/
	PR target/69619
	* gcc.dg/pr69619.c: Add new test.

From-SVN: r233145

We don't document the -mno-xxx variants for other flags here, and the
paragraph here specifically says "Each has a corresponding -mno- option
to disable use of these instructions".  Drop the -mno-fma4 line.

From-SVN: r233144