tree-vect-loop-manip.c (slpeel_add_loop_guard): Preserve preheaders.

2017-03-07  Richard Biener  <rguenther@suse.de>

* tree-vect-loop-manip.c (slpeel_add_loop_guard): Preserve
preheaders.

From-SVN: r245950

i386: Do not align small stack slots to 16 bytes

As Shmuel reported in <https://gcc.gnu.org/ml/gcc-help/2017-03/msg00009.html>,
on x86-64 small structures in automatic storage are aligned to 16 bytes.
This seems to be because of a mix-up between bits and bytes in the i386
target code.

* config/i386/i386.c (ix86_local_alignment): Align most aggregates
of 16 bytes and more to 16 bytes, not those of 16 bits and more.

From-SVN: r245949

PR c/79855: add full stop to store merging param descriptions

PR c/79855
* params.def (PARAM_STORE_MERGING_ALLOW_UNALIGNED): Add full stop
to end of description.
(PARAM_MAX_STORES_TO_MERGE): Likewise.

From-SVN: r245948

re PR rtl-optimization/79901 (ICE in prepare_cmp_insn, at optabs.c:3904)

PR rtl-optimization/79901
* config/i386/sse.md (*avx512bw_<code><mode>3<mask_name>): Renamed to
...
(*avx512f_<code><mode>3<mask_name>): ... this.
(<code><mode>3 with maxmin code iterator): Use VI8_AVX2_AVX512F
iterator instead of VI8_AVX2_AVX512BW.

* gcc.target/i386/pr79901.c: New test.

From-SVN: r245947

re PR rtl-optimization/79901 (ICE in prepare_cmp_insn, at optabs.c:3904)

PR rtl-optimization/79901
* expr.c (expand_expr_real_2): For vector MIN/MAX, if there is no
min/max expander, expand it using expand_vec_cond_expr.

From-SVN: r245946

re PR sanitizer/79897 (ICE in gimplify_modify_expr, at gimplify.c:5627 on ARM target)

PR sanitizer/79897
* ubsan.c (ubsan_encode_value): Call mark_addressable on the
temporary.

* c-c++-common/ubsan/pr79897.c: New test.

From-SVN: r245945

Daily bump.

From-SVN: r245943

Fix typo.

From-SVN: r245937

re PR c++/79821 (SEGV in cc1plus compiling 64-bit stdc++.h.gch/O2g.gch)

PR c++/79821
* dwarf2out.h (dw_vec_const): Change array type from unsigned char *
to void * for PCH reasons.
* dwarf2out.c (output_loc_operands, output_die): Cast
v.val_vec.array to unsigned char *.

From-SVN: r245932

PR target 77850

PR target 77850
* config/pa/pa-64.h (PAD_VARARGS_DOWN): Don't pad down complex and
vector types.

From-SVN: r245931

Fix the last ChangeLog entry

From-SVN: r245929

re PR rtl-optimization/79571 (ICE in Max. number of generated reload insns per insn is achieved (90))

2017-03-06  Vladimir Makarov  <vmakarov@redhat.com>

PR rtl-optimization/79571
* lra-constraints.c (process_alt_operands): Claculate static
reject and subtract it from overal when there will be only address
reloads.

2017-03-06  Vladimir Makarov  <vmakarov@redhat.com>

PR rtl-optimization/79571
* gcc.target/i386/pr79571.c: New.

From-SVN: r245928

PR c++/79796 - ICE with NSDMI and this pointer

PR c++/79796 - ICE with NSDMI and this pointer
* call.c (build_over_call): Handle NSDMI with a 'this' by calling
replace_placeholders.

* g++.dg/cpp0x/nsdmi13.C: New test.

From-SVN: r245927

Set incoming stack boundary to 128 for 64-bit targets

For 64-bit targets, the incoming stack of interrupt handler is aligned
to 16 bytes.  Update ix86_minimum_incoming_stack_boundary to set the
incoming stack boundary of interrupt handler to 128 for 64-bit targets.

gcc/

2017-03-06  Julia Koval  <julia.koval@intel.com>

PR target/79793
* config/i386/i386.c (ix86_minimum_incoming_stack_boundary): Set
incoming stack boundary to 128 for 64-bit targets.

gcc/testsuite/

2017-03-06  Julia Koval  <julia.koval@intel.com>

PR target/79793
 * gcc.target/i386/interrupt-12.c: Update scan-assembler-times
 directives.
 * gcc.target/i386/interrupt-13.c: Ditto.
 * gcc.target/i386/interrupt-14.c: Ditto.
 * gcc.target/i386/interrupt-15.c: Ditto.

From-SVN: r245926

re PR c++/79822 (ICE with void statement expression)

PR c++/79822
* constexpr.c (cxx_eval_statement_list): Treat empty ({ }) like
({ (void) 0; }).

* g++.dg/cpp0x/constexpr-79822.C: New test.

From-SVN: r245925

Revert "Allow deduction guides to look into primary template."

* cp-tree.h, parser.c, pt.c, search.c: Revert.

From-SVN: r245924

re PR tree-optimization/79887 (ICE in set_uid_loop_bbs, at tree-vectorizer.c:482)

2017-03-06  Richard Biener  <rguenther@suse.de>

PR tree-optimization/79894
* tree-vectorizer.c (vectorize_loops): Set loop_vectorized_call
to NULL after folding it.

* gcc.dg/vect/pr79887.c: New testcase.

From-SVN: r245923

re PR tree-optimization/79824 (Failure to peel for gaps leads to read beyond mapped memory)

2017-03-06  Richard Biener  <rguenther@suse.de>

PR tree-optimization/79824
* tree-vect-stmts.c (get_group_load_store_type): Fix alignment
check disabling peeling for gaps.

* gcc.dg/vect/pr79824-1.c: New testcase.
* gcc.dg/vect/pr79824-2.c: Likewise.

From-SVN: r245922

Add check_effective_target_gettimeofday and use it in gcc.dg/lto/pr60449_0.c.

gcc/
* doc/sourcebuild.texi (Effective-Target Keywords, Environment
attributes): Document gettimeofday.

gcc/testsuite/

* gcc.dg/lto/pr60449_0.c: Add dg-require-effective-target for
gettimeofday.  Remove dg-skip-if for AVR.
* lib/target-supports.exp (check_effective_target_gettimeofday):
New proc.

From-SVN: r245921

re PR fortran/79894 (ICE in gfc_add_modify_loc, at fortran/trans.c:159)

2017-03-06  Richard Biener  <rguenther@suse.de>

PR fortran/79894
* trans.c (gfc_add_modify_loc): Weaken assert.

From-SVN: r245919

S/390: Disable vectorization for loops with few iterations

The following patch defines the PARAM_MIN_VECT_LOOP_BOUND parameter in
the s390 backend.  It helps with the vectorization epilogue problem
described here [1].
I see an overall performance increase of > 1% in SPECfp2006, yet some
cases like cactusADM regress.  This seems to be caused by the vectorizer
creating an epilogue guard for one more iteration than before, which, in
turn, causes e.g. predcom to run on the epilogue that it used to ignore
before ("Loop iterates only 1 time, nothing to do.").  Subsequent,
minor, effects cause an eventual slowdown.

Until the reason for the bad epilogue code is understood, this patch
mitigates the problem.  When investigating the issue, I stumbled across
an attempt to vectorize the epilogue itself as well as combine it with
the vectorized loop in addition to vector masking [2].  A similar
approach might also help here.  My original observation of high register
pressure within the epilogue still stands.  In this specific case, it
would most likely suffice to save all registers once, run the epilogue
and restore the registers.  I'm pretty sure this would be faster than
the "spill fest" that's currently happening.

Regards
 Robin

[1] https://gcc.gnu.org/ml/gcc/2017-01/msg00234.html
[2] https://gcc.gnu.org/ml/gcc-patches/2016-05/msg01562.html

gcc/ChangeLog:

2017-03-06  Robin Dapp  <rdapp@linux.vnet.ibm.com>

* config/s390/s390.c (s390_option_override_internal): Set
PARAM_MIN_VECT_LOOP_BOUND

From-SVN: r245918

S/390: Change 2-byte NOPs

The following patch changes "nopr %r7" to "nopr %r0" which is
advantageous from a hardware perspective. It will only be emitted for
hotpatching and should not impact normal code.

gcc/ChangeLog:

2017-03-06  Robin Dapp  <rdapp@linux.vnet.ibm.com>

* config/s390/s390.c (s390_asm_output_function_label): Use nopr %r0.
* config/s390/s390.md: Likewise.

gcc/testsuite/ChangeLog:

2017-03-06  Robin Dapp  <rdapp@linux.vnet.ibm.com>

* gcc.target/s390/hotpatch-1.c: Check for nopr %r0.
* gcc.target/s390/hotpatch-10.c: Likewise.
* gcc.target/s390/hotpatch-11.c: Likewise.
* gcc.target/s390/hotpatch-12.c: Likewise.
* gcc.target/s390/hotpatch-13.c: Likewise.
* gcc.target/s390/hotpatch-14.c: Likewise.
* gcc.target/s390/hotpatch-15.c: Likewise.
* gcc.target/s390/hotpatch-16.c: Likewise.
* gcc.target/s390/hotpatch-17.c: Likewise.
* gcc.target/s390/hotpatch-18.c: Likewise.
* gcc.target/s390/hotpatch-19.c: Likewise.
* gcc.target/s390/hotpatch-2.c: Likewise.
* gcc.target/s390/hotpatch-26.c: Likewise.
* gcc.target/s390/hotpatch-27.c: Likewise.
* gcc.target/s390/hotpatch-28.c: Likewise.
* gcc.target/s390/hotpatch-3.c: Likewise.
* gcc.target/s390/hotpatch-4.c: Likewise.
* gcc.target/s390/hotpatch-5.c: Likewise.
* gcc.target/s390/hotpatch-6.c: Likewise.
* gcc.target/s390/hotpatch-7.c: Likewise.
* gcc.target/s390/hotpatch-8.c: Likewise.
* gcc.target/s390/hotpatch-9.c: Likewise.

From-SVN: r245917

re PR c++/64574 (ICE (stack overflow SEGV) with bad template specialization)

2017-03-06  Paolo Carlini  <paolo.carlini@oracle.com>

PR c++/64574
* g++.dg/template/crash125.C: New.

From-SVN: r245916

re PR target/79812 (ICE in simplify_binary_operation_1, at simplify-rtx.c:3586)

PR target/79812
* config/i386/sse.md (VI8F_256_512): Remove mode iterator.
(<avx2_avx512>_perm<mode>): Rename to ...
(avx2_perm<mode>): ... this.  Use VI8F_256 iterator instead
of VI8F_256_512.
(<avx512>_perm<mode>_mask): Rename to ...
(avx512vl_perm<mode>_mask): ... this.  Use VI8F_256 iterator instead
of VI8F_256_512.
(<avx2_avx512>_perm<mode>_1<mask_name>): Rename to ...
(avx2_perm<mode>_1<mask_name): ... this.  Use VI8F_256 iterator
instead of VI8F_256_512.
(avx512f_perm<mode>): New define_expand.
(avx512f_perm<mode>_mask): Likewise.
(avx512f_perm<mode>_1<mask_name>): New define_insn.
(<avx512>_vec_dup<mode>_1): Fix up vec_select mode.

* gcc.target/i386/avx512f-vpermq-imm-3.c: New test.

From-SVN: r245915

MIPS: Force o32 ABI for inline-memcpy-3.c.

gcc/testsuite/

* gcc.target/mips/inline-memcpy-3.c (dg-options): Add -mabi=32.

From-SVN: r245914

mips-msa.md (msa_fmax_a_<msafmt>, [...]): Introduce mode interator for if_then_else.

gcc/
* config/mips/mips-msa.md (msa_fmax_a_<msafmt>, msa_fmin_a_<msafmt>,
msa_max_a_<msafmt>, msa_min_a_<msafmt>): Introduce mode interator for
if_then_else.
(smin<mode>3, smax<mode>3): Change operand print code from 'B' to 'E'.

gcc/testsuite/
* gcc.target/mips/msa-minmax.c: New tests.

From-SVN: r245913

Fix ICE in use-after-scope w/ -fno-tree-dce (PR sanitize/79783).

2017-03-06  Martin Liska  <mliska@suse.cz>

PR sanitize/79783
* asan.c (asan_expand_poison_ifn): Do not expand ASAN_POISON
when having a SSA NAME w/o VAR_DECL assigned to it.
2017-03-06  Martin Liska  <mliska@suse.cz>

PR sanitize/79783
* g++.dg/asan/pr79783.C: New test.

From-SVN: r245912

mips-msa.md (msa_dotp_<su>_d, [...]): Fix MODE for vec_select.

gcc/
* config/mips/mips-msa.md (msa_dotp_<su>_d, msa_dpadd_<su>_d,
msa_dpsub_<su>_d): Fix MODE for vec_select.

gcc/testsuite/
* gcc.target/mips/msa-dotp.c: New tests.

From-SVN: r245911

mips.c (mips_gen_const_int_vector): Change type of last argument.

gcc/
* config/mips/mips.c (mips_gen_const_int_vector): Change type of last
argument.
* config/mips/mips-protos.h (mips_gen_const_int_vector): Likewise.

gcc/testsuite/
* gcc.target/mips/msa-bclri.c: New test.

From-SVN: r245910

lto-streamer.c (lto_check_version): Use %qs in diagnostics.

2017-03-06  Richard Biener  <rguenther@suse.de>

* lto-streamer.c (lto_check_version): Use %qs in diagnostics.
* plugin.c (register_plugin_info): Likewise.
* tree-chkp.c (chkp_make_static_const_bounds): Likewise.

From-SVN: r245909

* de.po, fr.po: Update.

From-SVN: r245908

Daily bump.

From-SVN: r245907

sse.md (sse_storehps, [...]): Require in condition that at least one operand is not a MEM.

* config/i386/sse.md (sse_storehps, sse_storelps,
avx_<castmode><avxsizesuffix>_<castmode>,
avx512f_<castmode><avxsizesuffix>_<castmode>,
avx512f_<castmode><avxsizesuffix>_256<castmode>): Require
in condition that at least one operand is not a MEM.

From-SVN: r245904

Add std::scoped_lock for C++17

* doc/xml/manual/status_cxx2017.xml: Document P0156R2 status.
* doc/html/*: Regenerate.
* include/std/mutex (scoped_lock): Implement new C++17 template.
* testsuite/30_threads/scoped_lock/cons/1.cc: New test.
* testsuite/30_threads/scoped_lock/requirements/
explicit_instantiation.cc: New test.
* testsuite/30_threads/scoped_lock/requirements/typedefs.cc: New test.

From-SVN: r245903

re PR c++/70266 (ICE on invalid code on x86_64-linux-gnu: unexpected expression ‘foo’ of kind overload)

/cp
2017-03-05  Paolo Carlini  <paolo.carlini@oracle.com>

PR c++/70266
* except.c (build_must_not_throw_expr): Perform the implicit
conversions on the condition.

/testsuite
2017-03-05  Paolo Carlini  <paolo.carlini@oracle.com>

PR c++/70266
* g++.dg/tm/pr70266.C: New.

From-SVN: r245901

check.c (positive_check): Add new function checking constant for being greater then zero.

gcc/fortran/ChangeLog:

2017-03-05  Andre Vehreschild  <vehre@gcc.gnu.org>
            Alessandro Fanfarillo  <fanfarillo.gcc@gmail.com>

* check.c (positive_check): Add new function checking constant for
being greater then zero.
(gfc_check_image_status): Add checking of image_status arguments.
(gfc_check_failed_or_stopped_images): Same but for failed_- and
stopped_images function.
* dump-parse-tree.c (show_code_node): Added output of FAIL IMAGE.
* gfortran.h (enum gfc_statement): Added FAIL_IMAGE_ST.
(enum gfc_isym_id): Added new intrinsic symbols.
(enum gfc_exec_op): Added EXEC_FAIL_IMAGE.
* gfortran.texi: Added description for the new API functions. Updated
coverage of gfortran of TS18508.
* intrinsic.c (add_functions): Added symbols to resolve new intrinsic
functions.
* intrinsic.h: Added prototypes.
* iresolve.c (gfc_resolve_failed_images): Resolve the failed_images
intrinsic.
(gfc_resolve_image_status): Same for image_status.
(gfc_resolve_stopped_images): Same for stopped_images.
* libgfortran.h: Added prototypes.
* match.c (gfc_match_if): Added matching of FAIL IMAGE statement.
(gfc_match_fail_image): Match a FAIL IMAGE statement.
* match.h: Added prototype.
* parse.c (decode_statement): Added matching for FAIL IMAGE.
(next_statement): Same.
(gfc_ascii_statement): Same.
* resolve.c: Same.
* simplify.c (gfc_simplify_failed_or_stopped_images): For COARRAY=
single a constant result can be returne.d
(gfc_simplify_image_status): For COARRAY=single the result is constant.
* st.c (gfc_free_statement): Added FAIL_IMAGE handling.
* trans-decl.c (gfc_build_builtin_function_decls): Added decls of the
new intrinsics.
* trans-expr.c (gfc_conv_procedure_call): This is first time all
arguments of a function are optional, which is now handled here
correctly.
* trans-intrinsic.c (conv_intrinsic_image_status): Translate
image_status.
(gfc_conv_intrinsic_function): Add support for image_status.
(gfc_is_intrinsic_libcall): Add support for the remaining new
intrinsics.
* trans-stmt.c (gfc_trans_fail_image): Trans a fail image.
* trans-stmt.h: Add the prototype for the above.
* trans.c (trans_code): Dispatch for fail_image.
* trans.h: Add the trees for the new intrinsics.

libgfortran/ChangeLog:

2017-03-05  Andre Vehreschild  <vehre@gcc.gnu.org>
            Alessandro Fanfarillo  <fanfarillo.gcc@gmail.com>

* caf/libcaf.h: Added prototypes and stat codes for failed and stopped
images.
* caf/single.c (void _gfortran_caf_fail_image): Add the routine.
(int _gfortran_caf_image_status): Same.
(_gfortran_caf_failed_images): Same.
(_gfortran_caf_stopped_images): Same.

gcc/testsuite/ChangeLog:

2017-03-05  Andre Vehreschild  <vehre@gcc.gnu.org>
            Alessandro Fanfarillo  <fanfarillo.gcc@gmail.com>

* gfortran.dg/coarray/fail_image_1.f08: New test.
* gfortran.dg/coarray/fail_image_2.f08: New test.
* gfortran.dg/coarray/failed_images_1.f08: New test.
* gfortran.dg/coarray/failed_images_2.f08: New test.
* gfortran.dg/coarray/image_status_1.f08: New test.
* gfortran.dg/coarray/image_status_2.f08: New test.
* gfortran.dg/coarray/stopped_images_1.f08: New test.
* gfortran.dg/coarray/stopped_images_2.f08: New test.
* gfortran.dg/coarray_fail_st.f90: New test.
* gfortran.dg/coarray_failed_images_1.f08: New test.
* gfortran.dg/coarray_image_status_1.f08: New test.
* gfortran.dg/coarray_stopped_images_1.f08: New test.

From-SVN: r245900

Daily bump.

From-SVN: r245897

c.opt (Wnoexcept-type): New.

* c.opt (Wnoexcept-type): New.

gcc/cp/
* mangle.c (mangle_decl): Check -Wnoexcept-type instead of
-Wc++1z-compat.

From-SVN: r245894

re PR c/79847 (diagnostics: missing space in "implicit declaration of function")

PR c/79847
* c-decl.c (implicit_decl_warning): Add missing space.

From-SVN: r245893

Core issues 2273 and 2277

* call.c (joust): Adjust using-declaration tiebreaker to handle
the intermediate base case.
* method.c (strip_inheriting_ctors): Just return the argument if
!flag_new_inheriting_ctors.

From-SVN: r245892

re PR fortran/79841 (Inconsistent diagnostics in fortran/openmp.c, function check_symbol_not_pointer)

2017-03-03  Jerry DeLisle  <jvdelisle@gcc.gnu.org>

PR fortran/79841
* openmp.c (check_symbol_not_pointer): Adjust diagnostic.

From-SVN: r245891

Daily bump.

From-SVN: r245890

* de.po: Update.

From-SVN: r245887

re PR c/79758 (ICE: tree check: expected class 'type', have 'exceptional' (error_mark) in store_parm_decls_oldstyle, at c/c-decl.c:8973)

PR c/79758
* c-decl.c (store_parm_decls_oldstyle): Check if the element of
current_function_prototype_arg_types is error_mark_node.  Fix
formatting.  Use TREE_VALUE instead of TREE_TYPE.

* gcc.dg/noncompile/pr79758.c: New test.

From-SVN: r245886

re PR c/79837 (incomplete diagnostic in c-parser: expected +, *, -, &, ^, |, &&, ||, min or identifier)

PR c/79837
* c-parser.c (c_parser_omp_clause_reduction): Don't mention
%<min%> or %<max%> in the diagnostics, instead mention identifier.
(c_parser_omp_declare_reduction): Don't mention %<min%> in the
diagnostics.

From-SVN: r245885

re PR c/79836 (typo in c/c-parser.c: pragma omp ordered)

PR c/79836
* c-parser.c (c_parser_generic_selection): Use %<_Generic%>
instead of %<_Generic>.
(c_parser_omp_ordered): Use %<depend%> instead of %<depend>.
(c_parser_omp_target_exit_data): Use %<release%> instead of
%<release>.

From-SVN: r245883

re PR middle-end/79805 (ICE (verify_flow_info failed) with -fnon-call-exceptions -O)

PR middle-end/79805
* internal-fn.def (ATOMIC_BIT_TEST_AND_SET, ATOMIC_BIT_TEST_AND_RESET,
ATOMIC_BIT_TEST_AND_COMPLEMENT, ATOMIC_COMPARE_EXCHANGE): Remove
ECF_NOTHROW.
* gimple-fold.c (fold_builtin_atomic_compare_exchange): Set
gimple_call_nothrow_p flag based on whether original builtin can throw.
If it can, emit following stmts on the fallthrough edge.
* tree-ssa-ccp.c (optimize_atomic_bit_test_and): Similarly, except
don't create new bb if inserting just debug stmts on the edge, try to
insert them on the fallthru bb or just reset debug stmts.

* g++.dg/opt/pr79805.C: New test.

From-SVN: r245882

rs6000: Fix for -mwarn-cell-microcode (PR43763)

If using -mwarn-cell-microcode, rs6000_final_prescan_insn calls
get_insn_template to get the name of the machine instruction.  But,
get_insn_template calls the output template if that is code, and that
then can modify recog_data (it is normal to change the operands, for
example).

This patch saves and restores recog_data around the call to
get_insn_template to fix the problems this causes.

PR target/43763
* config/rs6000/rs6000.c (rs6000_final_prescan_insn): Save and
restore recog_data (including the operand rtxes inside it) around
the call to get_insn_template.

From-SVN: r245880

avx512vpopcntdq-check.h: New.

* gcc.target/i386/avx512vpopcntdq-check.h: New.
* gcc.target/i386/avx512vpopcntdq-vpopcntd-1.c: Ditto.
* gcc.target/i386/avx512vpopcntdq-vpopcntq-1.c: Ditto.
* gcc.target/i386/avx512f-helper.h: Add avx512vpopcntdq-check.h.
* gcc.target/i386/i386.exp
(check_effective_target_avx512vpopcntdq): New.

From-SVN: r245879

PR tree-optimization/79699 - small memory leak in MPFR

gcc/ChangeLog:
* context.c (context::~context): Free MPFR caches to avoid
a memory leak on program exit.

From-SVN: r245878

[AArch64] Fix bootstrap due to wide_int .elt (0) uninit warning

    * config/aarch64/aarch64.c (aarch64_float_const_representable_p):
    Use wide_int::ulow () instead of .elt (0).

From-SVN: r245877

i386.md (*pushtf): Change *roF constraint to *roC.

* config/i386/i386.md (*pushtf): Change *roF constraint to *roC.
(*pushxf): Limit oF constraint to 32bit targets and add oC
constraint for 64bit targets.
(pushxf splitter): Use PUSH_ROUNDING to calculate stack adjustment.
(*pushdf): Change rmF constraint to rmC.

From-SVN: r245876

* gcc_release (snapshot_print): Replace md5 checksum by sha256.

From-SVN: r245875

MIPS: Fix register mode checking for n64 in pr68273.c.

gcc/testsuite/

* gcc.target/mips/pr68273.c (dg-final): Match SImode registers only for
ilp32 targets and match DImode registers for lp64 targets.

From-SVN: r245874

Remove unused variable.

2017-03-03  Martin Liska  <mliska@suse.cz>

* tree-ssa-loop-prefetch.c (pass_loop_prefetch::execute):
Remove unused variable.

From-SVN: r245873

pr71624.C: Disable for x32.

* g++.dg/pr71624.C: Disable for x32.
* g++.dg/pr71633.C: Ditto.

From-SVN: r245872

re PR target/79807 (ICE in extract_insn, at recog.c:2311 (error: unrecognizable insn))

PR target/79807
* config/i386/i386.c (ix86_expand_multi_arg_builtin): If target
is a memory operand, increase num_memory.
(ix86_expand_args_builtin): Likewise.

* gcc.target/i386/pr79807.c: New test.

From-SVN: r245871

Properly handle __cxa_pure_virtual visibility (PR lto/79760).

2017-03-03  Jan Hubicka  <jh@suse.cz>

PR lto/79760
* ipa-devirt.c (maybe_record_node): Properly handle
__cxa_pure_virtual visibility.

From-SVN: r245870

Add -Wdisabled-optimization to loop prefetching pass (PR tree-optimization/79803).

2017-03-03  Martin Liska  <mliska@suse.cz>

PR tree-optimization/79803
* tree-ssa-loop-prefetch.c (tree_ssa_prefetch_arrays): Remove
assert.
(pass_loop_prefetch::execute): Disabled optimization if an
assumption about L1 cache size is not met.
2017-03-03  Martin Liska  <mliska@suse.cz>

PR tree-optimization/79803
* gcc.dg/tree-ssa/pr79803.c: New test.

From-SVN: r245869

GCSE: Use HOST_WIDE_INT instead of int (PR rtl-optimization/79574).

2017-03-03  Martin Liska  <mliska@suse.cz>

PR rtl-optimization/79574
* gcse.c (struct gcse_expr): Use HOST_WIDE_INT instead of int.
(hash_scan_set): Likewise.
(dump_hash_table): Likewise.
(hoist_code): Likewise.
2017-03-03  Martin Liska  <mliska@suse.cz>

PR rtl-optimization/79574
* gcc.dg/pr79574-2.c: New test.

From-SVN: r245868

fixed-value.c (fixed_from_string): Restore use of elt (1) in place of uhigh ().

2017-03-03  Richard Biener  <rguenther@suse.de>

* fixed-value.c (fixed_from_string): Restore use of elt (1)
in place of uhigh ().
(fixed_convert_from_real): Likewise.

From-SVN: r245867

re PR c++/79825 (Uninitialized uses in aggregate copies of empty structs (missed DCE in C++ gimplify))

2017-03-03  Richard Biener  <rguenther@suse.de>

PR c++/79825
* cp-gimplify.c (simple_empty_class_p): Handle EMPTY_CLASS_EXPR.

* g++.dg/warn/Wuninitialized-8.C: New testcase.

From-SVN: r245866

* gcc.dg/pr57134.c: Use empty inline asm string literal.

From-SVN: r245865

re PR c++/79791 (-Werror=write-strings ignored with -Wpedantic)

PR c++/79791
* typeck.c (string_conv_p): In C++11, always call pedwarn with
OPT_Wwrite_strings.

* g++.dg/warn/Wwrite-strings-1.C: New test.
* g++.dg/warn/Wwrite-strings-2.C: New test.
* g++.dg/warn/Wwrite-strings-3.C: New test.
* g++.dg/warn/Wwrite-strings-4.C: New test.
* g++.dg/warn/Wwrite-strings-5.C: New test.
* g++.dg/warn/Wwrite-strings-6.C: New test.
* g++.dg/warn/Wwrite-strings-7.C: New test.
* g++.dg/warn/Wwrite-strings-8.C: New test.
* g++.dg/warn/Wwrite-strings-9.C: New test.
* g++.dg/warn/Wwrite-strings-10.C: New test.
* g++.dg/warn/Wwrite-strings-11.C: New test.
* g++.dg/warn/Wwrite-strings-12.C: New test.

From-SVN: r245864

re PR target/79514 (ICE in curr_insn_transform, at lra-constraints.c:3773)

PR target/79514
* config/i386/i386.md (*pushxf_rounded): Use Pmode instead of DImode.

From-SVN: r245861

re PR middle-end/79818 (wrong code with -fwrapv and -Os/-O1/-O2/-O3)

2017-03-03  Richard Biener  <rguenther@suse.de>

PR middle-end/79818
* match.pd ( X +- C1 CMP C2 -> X CMP C2 -+ C1): Add missing
TYPE_OVERFLOW_UNDEFINED check.

* gcc.dg/torture/pr79818.c: New testcase.

From-SVN: r245860

Update overload resolution with deduction guides.

* pt.c (do_class_deduction): Always build the copy guide.
(copy_guide_p, template_guide_p): New.
(build_deduction_guide): Remember the original constructor.
* call.c (joust): Prefer the copy guide and non-template guides.

From-SVN: r245859

Allow deduction guides to look into primary template.

* cp-tree.h (struct saved_scope): Add deduction_guide_type.
(struct cp_decl_specifier_seq): Add constructor_p.
* parser.c (cp_parser_decl_specifier_seq): Set constructor_p.
(cp_parser_init_declarator): Check it.  Set ctor_dtor_or_conv_p.
Clear deduction_guide_type.  Don't handle deduction guide names.
(cp_parser_declarator): Don't clear ctor_dtor_or_conv_p.
(cp_parser_direct_declarator): Likewise.  Handle deduction guides.
(cp_parser_member_declaration, cp_parser_cache_defarg)
(cp_parser_objc_class_ivars): Set ctor_dtor_or_conv_p.
* pt.c (tsubst_copy, tsubst_copy_and_build): Revert last change.
(build_deduction_guide): Set deduction_guide_type.
(dependent_scope_p): Check deduction_guide_type.
* search.c (lookup_member): Likewise.

From-SVN: r245858

Daily bump.

From-SVN: r245857

re PR c++/79782 (ICE: tree check: expected tree_list, have void_type in emit_mem_initializers, at cp/init.c:1225)

PR c++/79782
* init.c (mark_exp_read_r): New function.
(emit_mem_initializers): Use cp_walk_tree with mark_exp_read_r on
whole arguments instead of plain mark_exp_read on TREE_LIST values.

* g++.dg/warn/Wunused-parm-10.C: New test.

From-SVN: r245853

* da.po: Update.

From-SVN: r245852

*.c: Test for "{ i?86-*-* x86_64-*-* } && lp64" targets only.

* gcc.dg/rtl/x86_64/*.c: Test for
"{ i?86-*-* x86_64-*-* } && lp64" targets only.

From-SVN: r245850

vector.md (vector_ne_<mode>_p): Correct operand numbers.

2017-03-02  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>

* config/rs6000/vector.md (vector_ne_<mode>_p): Correct operand
numbers.
(vector_ae_<mode>_p): Likewise.
(vector_nez_<mode>_p): Likewise.
(vector_ne_v2di_p): Likewise.
(vector_ae_v2di_p): Likewise.
(vector_ne_<mode>_p): Likewise.
* config/rs6000/vsx.md (vsx_tsqrt<mode>2_fg): Correct operand
numbers.
(vsx_tsqrt<mode>2_fe): Likewise.

From-SVN: r245849

debug_mode.xml: Update and simplify note on link- and run-time coexistence.

* doc/xml/manual/debug_mode.xml: Update and simplify note
on link- and run-time coexistence.

Co-Authored-By: François Dumont <frs.dumont@gmail.com>
Co-Authored-By: Jonathan Wakely <jwakely@redhat.com>
From-SVN: r245848

Rename 17_intro/headers/names.cc test file

* testsuite/17_intro/headers/names.cc: Rename to ...
* testsuite/17_intro/names.cc: ... here.

From-SVN: r245845

re PR target/79514 (ICE in curr_insn_transform, at lra-constraints.c:3773)

PR target/79514
* config/i386/i386.md (*pushxf_rounded): New insn_and_split pattern.

testsuite/ChangeLog:

PR target/79514
* gcc.target/i386/pr79514.c: New test.

From-SVN: r245844

re PR rtl-optimization/79780 (ICE in rtl_verify_bb_insns, at cfgrtl.c:2661 (error: flow control insn inside a basic block))

PR rtl-optimization/79780
* cprop.c (one_cprop_pass): When second and further conditional trap
in a single basic block is turned into an unconditional trap, turn it
into a deleted note to avoid RTL verification failures.

* gcc.c-torture/compile/pr79780.c: New test.

From-SVN: r245843

fold-const.c (const_binop): Use ulow () instead of elt (0).

2017-03-02  Richard Biener  <rguenther@suse.de>

* fold-const.c (const_binop): Use ulow () instead of elt (0).

From-SVN: r245841

re PR tree-optimization/79345 (passing yet-uninitialized member as argument to base class constructor should warn (-Wunitialized))

2017-03-02  Richard Biener  <rguenther@suse.de>

PR tree-optimization/79345
PR c++/42000
* tree-ssa-alias.c (walk_aliased_vdefs_1): Take a limit
param and abort the walk, returning -1 if it is hit.
(walk_aliased_vdefs): Take a limit param and pass it on.
* tree-ssa-alias.h (walk_aliased_vdefs): Add a limit param,
defaulting to 0 and return a signed int.
* tree-ssa-uninit.c (struct check_defs_data): New struct.
(check_defs): New helper.
(warn_uninitialized_vars): Use walk_aliased_vdefs to warn
about uninitialized memory.

* fixed-value.c (fixed_from_string): Use ulow/uhigh to avoid
bogus uninitialized warning.
(fixed_convert_from_real): Likewise.

* g++.dg/warn/Wuninitialized-7.C: New testcase.
* c-c++-common/ubsan/bounds-2.c: Add -Wno-uninitialized.
* gcc.dg/uninit-pr19430-2.c: Add expected warning.

From-SVN: r245840

matmul.m4 (matmul_'rtype_code`): Avoid race condition on storing function pointer.

2017-03-02  Thomas Koenig  <tkoenig@gcc.gnu.org>
    Jakub Jelinek  <jakub@redhat.com>

* m4/matmul.m4 (matmul_'rtype_code`):  Avoid
race condition on storing function pointer.
        * generated/matmul_c10.c: Regenerated.
        * generated/matmul_c16.c: Regenerated.
        * generated/matmul_c4.c: Regenerated.
        * generated/matmul_c8.c: Regenerated.
        * generated/matmul_i1.c: Regenerated.
        * generated/matmul_i16.c: Regenerated.
        * generated/matmul_i2.c: Regenerated.
        * generated/matmul_i4.c: Regenerated.
        * generated/matmul_i8.c: Regenerated.
        * generated/matmul_r10.c: Regenerated.
        * generated/matmul_r16.c: Regenerated.
        * generated/matmul_r4.c: Regenerated.
        * generated/matmul_r8.c: Regenerated.

Co-Authored-By: Jakub Jelinek <jakub@redhat.com>
From-SVN: r245839

re PR middle-end/79756 (ICE in execute_todo, at passes.c:2011)

2017-03-02  Richard Biener  <rguenther@suse.de>

PR c/79756
* c-common.c (c_common_mark_addressable_vec): Look through
C_MAYBE_CONST_EXPR.

* gcc.dg/vector-1.c: New testcase.

From-SVN: r245838

re PR tree-optimization/66768 (address space gets lost on literal pointer)

PR tree-optimization/66768
* tree-ssa-loop-ivopts.c (find_interesting_uses_address): Skip addr
iv_use if base object can't be determined.

gcc/testsuite
* gcc.target/i386/pr66768.c: New test.

From-SVN: r245837

re PR libfortran/78379 (Processor-specific versions for matmul)

2017-03-02  Thomas Koenig  <tkoenig@gcc.gnu.org>

PR fortran/78379
* m4/matmul.m4: (matmul_'rtype_code`_avx2): Also generate for
reals.  Add fma to target options.
(matmul_'rtype_code`):  Call AVX2 only if FMA is available.
        * generated/matmul_c10.c: Regenerated.
        * generated/matmul_c16.c: Regenerated.
        * generated/matmul_c4.c: Regenerated.
        * generated/matmul_c8.c: Regenerated.
        * generated/matmul_i1.c: Regenerated.
        * generated/matmul_i16.c: Regenerated.
        * generated/matmul_i2.c: Regenerated.
        * generated/matmul_i4.c: Regenerated.
        * generated/matmul_i8.c: Regenerated.
        * generated/matmul_r10.c: Regenerated.
        * generated/matmul_r16.c: Regenerated.
        * generated/matmul_r4.c: Regenerated.
        * generated/matmul_r8.c: Regenerated.

From-SVN: r245836

gthr-win32.h: Define NOGDI before windows.h include to prevent w32api CC_NONE macro clash...

        * config/i386/gthr-win32.h: Define NOGDI before
        windows.h include to prevent w32api CC_NONE macro
        clash with libgfortran.

From-SVN: r245835

unwind-seh.c: Suppress warnings for RtlUnwindEx calls.

* unwind-seh.c: Suppress warnings for RtlUnwindEx calls.

From-SVN: r245834

re PR tree-optimization/79345 (passing yet-uninitialized member as argument to base class constructor should warn (-Wunitialized))

PR tree-optimization/79345
* gensupport.h (struct pattern_stats): Add min_scratch_opno field.
* gensupport.c (get_pattern_stats_1) <case MATCH_SCRATCH>: Update it.
(get_pattern_stats): Initialize it.
* genemit.c (gen_expand): Verify match_scratch numbers come after
match_operand/match_dup numbers.
* config/i386/i386.md (<s>mul<mode>3_highpart): Swap match_dup and
match_scratch numbers.
* config/i386/sse.md (avx2_gathersi<mode>, avx2_gatherdi<mode>):
Likewise.
* config/s390/s390.md (trunctdsd2): Likewise.

From-SVN: r245833

dfinit.c: Only run for lp64.

2017-03-02  Richard Biener  <rguenther@suse.de>

* gcc.dg/rtl/x86_64/dfinit.c: Only run for lp64.
* gcc.dg/rtl/x86_64/final.c: Likewise.
* gcc.dg/rtl/x86_64/into-cfglayout.c: Likewise.
* gcc.dg/rtl/x86_64/ira.c: Likewise.
* gcc.dg/rtl/x86_64/times-two.c.after-expand.c: Likewise.
* gcc.dg/rtl/x86_64/vregs.c: Likewise.

From-SVN: r245832

wide-int.h (wide_int_storage::operator=): Implement in terms of wi::copy.

2017-03-02  Richard Biener  <rguenther@suse.de>

* wide-int.h (wide_int_storage::operator=): Implement in terms
of wi::copy.

From-SVN: r245831

re PR tree-optimization/79777 (ICE on -Os and above in on aarch64-linux-gnu (internal compiler error: in VN_INFO_GET, at tree-ssa-sccvn.c:407 }))

2017-03-02  Richard Biener  <rguenther@suse.de>

PR tree-optimization/79777
* tree-ssa-pre.c (eliminate_insert): Give up if we simplify
the to insert expression to sth existing.

* gcc.dg/torture/pr79777.c: New testcase.

From-SVN: r245830

PR libstdc++/79789 fix non-reserved names in headers

PR libstdc++/79789
* include/bits/hashtable_policy.h (__clp2): Use reserved names for
parameters and local variables.
* include/bits/ios_base.h (make_error_code, make_error_condition):
Likewise.
* include/bits/list.tcc (list::sort): Likewise.
* include/bits/mask_array.h (mask_array): Likewise.
* include/bits/regex.h (regex_token_iterator): Likewise.
* include/bits/slice_array.h (slice_array): Likewise.
* include/bits/stl_algo.h (__sample): Likewise.
* include/std/memory (undeclare_no_pointers): Likewise.
* include/std/type_traits (is_callable_v, is_nothrow_callable_v):
Likewise.
* libsupc++/exception_ptr.h (__dest_thunk): Likewise.
* testsuite/17_intro/headers/names.cc: New test.

From-SVN: r245828

PR 79798 Fix incorrect use of std::result_of in std::bind

PR libstdc++/79798
* include/std/functional (bind::_Res_type_impl): Fix incorrect use of
result_of that loses top-level cv-qualifiers.
* testsuite/20_util/bind/79798.cc: New test.

From-SVN: r245827

Class template argument deduction in new-expression

Class template argument deduction in new-expression
* init.c (build_new): Handle deduction from no initializer.
* parser.c (cp_parser_new_expression): Don't require a single
expression for class template deduction.
* typeck2.c (cxx_incomplete_type_diagnostic): Fix diagnostic for
class template placeholder.
* pt.c (tsubst_copy) [TEMPLATE_DECL]: Handle dependent context.
(tsubst_copy_and_build) [TEMPLATE_ID_EXPR]: Handle SCOPE_REF.
(redeclare_class_template): Set TEMPLATE_TYPE_PARM_FOR_CLASS.

From-SVN: r245826

Daily bump.

From-SVN: r245825

PR middle-end/79692 - [7 Regression] -Wformat-overflow false positive

gcc/ChangeLog:

PR middle-end/79692
* gimple-ssa-sprintf.c
(directive::known_width_and_precision): New function.
(format_integer): Use it.
(get_mpfr_format_length): Consider the full range of precision
when computing %g output with the # flag.  Set the likely byte
count to 3 rather than 1 when precision is indeterminate.
(format_floating): Correct the lower bound of precision.

gcc/testsuite/ChangeLog:

PR middle-end/79692
* gcc.dg/tree-ssa/builtin-sprintf-2.c: Add test cases.
* gcc.dg/tree-ssa/builtin-sprintf-warn-10.c: Correct %#g.
* gcc.dg/tree-ssa/builtin-sprintf-warn-15.c: New test.
* gcc.dg/tree-ssa/builtin-snprintf-3.c: Ditto.

From-SVN: r245822

invoke.texi: Document default code model for 64-bit Linux.

2017-03-01  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>

* doc/invoke.texi: Document default code model for 64-bit Linux.

From-SVN: r245821

* es.po: Update.

From-SVN: r245820

re PR target/79752 (incorrect code generation for __divkf3 with -O2 -mcpu=power9)

2017-03-01  Aaron Sawdey  <acsawdey@linux.vnet.ibm.com>

        PR target/79752
        * config/rs6000/rs6000.md (peephole2 for udiv/umod): Should emit
        udiv rather than div since input pattern is unsigned.

From-SVN: r245817

i386.c (print_reg): Warn for values of unsupported size in integer register.

* config/i386/i386.c (print_reg): Warn for values of
unsupported size in integer register.

testsuite/ChangeLog:

* gcc.target/i386/invsize-2.c: New test.
* gcc.target/i386/invsize-3.c: Ditto.
* gcc.target/i386/invsize-4.c: Ditto.
* gcc.target/i386/pr66274.c: Expect "unsuported size" warning.
* gcc.target/i386/stackalign/asm-1.c: Ditto.

From-SVN: r245815

cmd/go: add testdata/timeoutbench_test.go

This file was accidentally omitted from the update to the final Go 1.8.

From-SVN: r245814

re PR target/79439 (Missing nop instruction after recursive call corrupts TOC register)

[gcc]
2017-03-01  Michael Meissner  <meissner@linux.vnet.ibm.com>

PR target/79439
* config/rs6000/predicates.md (current_file_function_operand): Do
not allow self calls to be local if the function is replaceable.

[gcc/testsuite]
2017-03-01  Michael Meissner  <meissner@linux.vnet.ibm.com>

PR target/79439
* gcc.target/powerpc/pr79439.c: New test.

From-SVN: r245813