When building with --with-tune=zEC12 and calling the resulting gcc
with --march=z13 (no extra -mtune), the binary would unexpectedly be compiled
with -march=z13 -mtune=zEC12.  This patch avoids using the default tune
parameter if -march is specified as argument but the user can still
explicitly state -march=z13 -mtune=zEC12.

gcc/ChangeLog:

2018-06-26  Robin Dapp  <rdapp@linux.vnet.ibm.com>

	* config/s390/s390.h (enum processor_flags): Do not use
	default tune parameter when -march was specified.

From-SVN: r262143

	PR target/86314
	* config/i386/i386.md (setcc + movzbl to xor + setcc peephole2s):
	Check reg_overlap_mentioned_p in addition to reg_set_p with the same
	operands.

	* gcc.dg/pr86314.c: New test.

From-SVN: r262141

	PR c++/86291
	* parser.c (cp_parser_omp_for_loop_init): Change for_block argument
	type from vec<tree, va_gc> * to vec<tree, va_gc> *&.

	* testsuite/libgomp.c++/pr86291.C: New test.

From-SVN: r262137

re PR debug/86257 (Program compiled with fPIC crashes while stepping over thread-local variable GDB)

	PR debug/86257
	* gcc.target/i386/pr86257.c: Add -mtls-dialect=gnu to dg-options.

From-SVN: r262136

	* gcc.target/i386/pr86257.c: Require 64-bit.

From-SVN: r262135

	* g++.dg/pr86082.C: Require IBM1047 support.

From-SVN: r262134

From-SVN: r262133

2018-06-26  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/86287
	PR bootstrap/86316
	* tree-vect-loop.c (vect_transform_loop_stmt): Fix read-after-free.
	(vect_analyze_loop): Initialize n_stmts.

From-SVN: r262132

2018-06-26  Richard Biener  <rguenther@suse.de>

	PR middle-end/86271
	* fold-const.c (fold_convertible_p): Pointer extension
	isn't valid.

	* gcc.dg/pr86271.c: New testcase.

From-SVN: r262131

We didn't split cross-partition ranges in loclists to output a
whole-function location expression, but with nonzero locviews, we
force loclists, and then we have to split to avoid cross-partition
list entries.

for  gcc/ChangeLog

	PR debug/86064
	* dwarf2out.c (loc_list_has_views): Adjust comments.
	(dw_loc_list): Split single cross-partition range with
	nonzero locview.

for  gcc/testsuite/ChangeLog

	PR debug/86064
	* gcc.dg/pr86064.c: New.

From-SVN: r262130

	(check_effective_target_logical_op_short_circuit): Add v850.

From-SVN: r262129

From-SVN: r262127

	* config/v850/predicates.md (const_float_1_operand): Fix match_code
	test.
	(const_float_0_operand): Remove unused predicate.
	* config/v850/v850.md (define_constants): Remove UNSPEC_LOOP.
	(define_c_enum unspec): Add LOOP, RCP and RSQRT constants.
	(recipsf2): New expander.  Original pattern now called
	(recipsf2_insn).
	(recipdf2, recipdf2_insn): Similarly.
	(rsqrtsf2, rsqrtsf2_insn): Similarly
	(rsqrtdf2, rsqrtdf2_insn): Similarly

From-SVN: r262123

	* ginclude/stddef.h: Remove an obsolete comment on FreeBSD 5.
	Simplify logic for FreeBSD (twice).

From-SVN: r262121

    
    This CL ports recent enhancements of the escape analysis in the
    gc compiler to gofrontend.
    
    - CL 99335: unnamed receiver should not escape.
    
    - CL 105257: propagate loop depth to field. This prevents it
      from escaping when a field's address is taken inside a loop
      (but not otherwise escape).
    
    - CL 107597: use element type for "indirection" of slice/string.
      This prevents the slice/string from escaping when only the
      element, in case that it is pointerless, flows to outer scope.
    
    Reviewed-on: https://go-review.googlesource.com/120760

From-SVN: r262120

Dict comprehensions are only supported since Python 2.7, so use an
alternative syntax that is backwards compatible.

	PR libstdc++/86112
	* python/libstdcxx/v6/printers.py (add_one_template_type_printer):
	Replace dict comprehension.

From-SVN: r262115

gcc/ChangeLog:

	PR tree-optimization/86204
	* tree-ssa-strlen.c (handle_builtin_strlen): Avoid storing
	a strnlen result if it's less than the length of the string.

gcc/testsuite/ChangeLog:

	PR tree-optimization/86204
	* gcc.dg/strlenopt-46.c: New test.

From-SVN: r262114

	PR libstdc++/81092
	* config/abi/post/powerpc64-linux-gnu/baseline_symbols.txt: Update.

From-SVN: r262112

gcc/ChangeLog:

	PR tree-optimization/85700
	* gimple-fold.c (gimple_fold_builtin_strncat): Adjust comment.
	* tree-ssa-strlen.c (is_strlen_related_p): Handle integer subtraction.
	(maybe_diag_stxncpy_trunc): Distinguish strncat from strncpy.

gcc/testsuite/ChangeLog:

	PR tree-optimization/85700
	* gcc.dg/Wstringop-truncation-4.c: New test.

From-SVN: r262110

gcc/ChangeLog:

	* doc/extend.texi (Zero-length arrays): Update and clarify.

From-SVN: r262109

2018-06-25  Michael Meissner  <meissner@linux.ibm.com>

	* config.gcc (powerpc64le*): Revert January 16th, 2018 patch that
	added IEEE/IBM long double multilib support on PowerPC little
	endian Linux systems.
	* config/rs6000/linux64.h (MULTILIB_DEFAULTS_IEEE): Likewise.
	(MULTILIB_DEFAULTS): Likewise.
	* config/rs6000/rs6000.c (rs6000_option_override_internal):
	Likewise.
	* config/rs6000/rs6000.h (TARGET_IEEEQUAD_MULTILIB): Likewise.
	* config/rs6000/t-ldouble-linux64le-ibm: Delete, no longer used.
	* config/rs6000/t-ldouble-linux64le-ieee: Delete, no longer used.

From-SVN: r262105

    iso_c_binding.

    gcc/fortran/ChangeLog:

    2018-06-25  Fritz Reese  <fritzoreese@gmail.com>

	PR fortran/82972
        PR fortran/83088
        PR fortran/85851
	* expr.c (component_initializer): Assign init expr to c->initializer.
	(generate_isocbinding_initializer): New.
	(gfc_generate_initializer): Call generate_isocbinding_initializer to
	generate initializers for c_ptr and c_funptr with -finit-derived.

    gcc/testsuite/ChangeLog:

    2018-06-25  Fritz Reese  <fritzoreese@gmail.com>

	PR fortran/82972
        PR fortran/83088
        PR fortran/85851
	* gfortran.dg/init_flag_17.f90: New testcase.

From-SVN: r262104

	PR middle-end/86311
	* sort.cc (REORDER_23): Avoid memcpy with same destination and source.
	(REORDER_45): Likewise.

From-SVN: r262092

	PR libstdc++/86292
	* include/bits/stl_vector.h (vector::_M_range_initialize<InputIter>):
	Add try-catch block.
	* testsuite/23_containers/vector/cons/86292.cc: New.

From-SVN: r262029

From-SVN: r262025

The additions to <experimental/random> were added in 2015 but the new
algorithms in <experimental/algorithm> were not. This adds them.

	* include/experimental/algorithm (sample, shuffle): Add new overloads
	using per-thread random number engine.
	* testsuite/experimental/algorithm/sample.cc: Simpify and reduce
	dependencies by using __gnu_test::test_container.
	* testsuite/experimental/algorithm/sample-2.cc: New.
	* testsuite/experimental/algorithm/shuffle.cc: New.

From-SVN: r262024

gcc/testsuite/ChangeLog:

2018-06-25  Carl Love  <cel@us.ibm.com>

	* gcc.target/powerpc/p9-extract-1.c: Make second argument of
 	vec_extract a signed int. Add vec_extract tests for bool char
	and bool int.
	* gcc.target/powerpc/p9-extract-4.c:  New test file for long long
	vec_extract tests.

From-SVN: r262023

	* config/v850/v850.md (divmodhi4): Make sure to sign extend the
	dividend to 32 bits.  Adjust length.
	(udivmodhi4): Cleanup output template.  Fix length.

From-SVN: r262022

2018-06-25  Tom de Vries  <tdevries@suse.de>

	* lib/gcc-gdb-test.exp (report_gdb): Handle gdb -v failure.

From-SVN: r262021

gcc/ChangeLog:

2018-06-25  Carl Love  <cel@us.ibm.com>

	* config/rs6000/vsx.md: Change word selector to prefered location.

Signed-off-by: Carl Love <cel@us.ibm.com>
---
 gcc/config/rs6000/vsx.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/gcc/config/rs6000/vsx.md b/gcc/config/rs6000/vsx.md
index a528ef2e8..6e7a4277f 100644
--- a/gcc/config/rs6000/vsx.md
+++ b/gcc/config/rs6000/vsx.md
@@ -3934,7 +3934,7 @@
 
   operands[5] = gen_rtx_REG (V4SFmode, tmp_regno);
   operands[6] = gen_rtx_REG (V4SImode, tmp_regno);
-  operands[7] = GEN_INT (BYTES_BIG_ENDIAN ? 1 : 2);
+  operands[7] = GEN_INT (BYTES_BIG_ENDIAN ? 0 : 3);
   operands[8] = gen_rtx_REG (V4SImode, reg_or_subregno (operands[0]));
 }
   [(set_attr "type" "vecperm")
-- 
2.17.1

From-SVN: r262020

re PR regression/86304 ([MIPS] FAIL: gcc.dg/vect/pr79887.c  -mmsa (internal compiler error) starting with r261740)

2018-06-25  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/86304
	* tree-vectorizer.c (vectorize_loops): Walk over new possibly
	epilogue-if-converted loops as well.

From-SVN: r262017

	PR target/84786
	* config/i386/sse.md (vshift_count): New mode attr.
	(<shift_insn><mode>3<mask_name>): Use <vshift_count>N instead of vN
	as last operand's constraint for VI2_AVX2_AVX512BW shifts.  Use YvN
	instead of vN as last operand's constraint for VI48_AVX2 shifts.

	* gcc.target/i386/avx512f-pr84786-3.c: New test.

From-SVN: r262015

	* lto-section-out.c (lto_begin_section): Do not print section
	name for noaddr and unnumbered dumps.

From-SVN: r262013

tree-vectorizer.h (struct vec_info_shared): New structure with parts split out from struct vec_info and loop_nest from...

2018-06-25  Richard Biener  <rguenther@suse.de>

	* tree-vectorizer.h (struct vec_info_shared): New structure
	with parts split out from struct vec_info and loop_nest from
	struct _loop_vec_info.
	(struct vec_info): Adjust accordingly.
	(struct _loop_vec_info): Likewise.
	(LOOP_VINFO_LOOP_NEST): Adjust.
	(LOOP_VINFO_DATAREFS): Likewise.
	(LOOP_VINFO_DDRS): Likewise.
	(struct _bb_vec_info): Likewise.
	(BB_VINFO_DATAREFS): Likewise.
	(BB_VINFO_DDRS): Likewise.
	(struct _stmt_vec_info): Add dr_aux member.
	(DR_VECT_AUX): Adjust to refer to member of DR_STMTs vinfo.
	(DR_MISALIGNMENT_UNINITIALIZED): New.
	(set_dr_misalignment): Adjust.
	(dr_misalignment): Assert misalign isn't DR_MISALIGNMENT_UNINITIALIZED.
	(vect_analyze_loop): Adjust prototype.
	(vect_analyze_loop_form): Likewise.
	* tree-vect-data-refs.c (vect_analyze_data_ref_dependences):
	Compute dependences lazily.
	(vect_record_base_alignments): Use shared datarefs/ddrs.
	(vect_verify_datarefs_alignment): Likewise.
	(vect_analyze_data_refs_alignment): Likewise.
	(vect_analyze_data_ref_accesses): Likewise.
	(vect_analyze_data_refs): Likewise.
	* tree-vect-loop.c (_loop_vec_info::_loop_vec_info): Add
	constructor parameter for shared part.
	(vect_analyze_loop_form): Pass in shared part and adjust.
	(vect_analyze_loop_2): Pass in storage for the number of
	stmts.  Move loop nest finding to the caller.  Compute
	datarefs lazily.
	(vect_analyze_loop): Pass in shared part.
	(vect_transform_loop): Verify shared datarefs are unchanged.
	* tree-vect-slp.c (_bb_vec_info::_bb_vec_info): Add
	constructor parameter for shared part.
	(vect_slp_analyze_bb_1): Pass in shared part and adjust.
	(vect_slp_bb): Verify shared datarefs are unchanged before
	transform.
	* tree-vect-stmts.c (ensure_base_align): Adjust for DR_AUX
	change.
	(new_stmt_vec_info): Initialize DR_AUX misalignment to
	DR_MISALIGNMENT_UNINITIALIZED.
	* tree-vectorizer.c (vec_info::vec_info): Add constructor
	parameter for shared part.
	(vec_info::~vec_info): Adjust.
	(vec_info_shared::vec_info_shared): New.
	(vec_info_shared::~vec_info_shared): Likewise.
	(vec_info_shared::save_datarefs): Likewise.
	(vec_info_shared::check_datarefs): Likewise.
	(try_vectorize_loop_1): Construct shared part live for analyses
	of a single loop for multiple vector sizes.
	* tree-parloops.c (gather_scalar_reductions): Adjust.

From-SVN: r262009

tree-vect-data-refs.c (vect_find_stmt_data_reference): Modify DR for SIMD lane accesses here and mark DR with (void *)-1 aux.

2018-06-25  Richard Biener  <rguenther@suse.de>

	* tree-vect-data-refs.c (vect_find_stmt_data_reference): Modify
	DR for SIMD lane accesses here and mark DR with (void *)-1 aux.
	(vect_analyze_data_refs): Remove similar code from here and
	simplify accordingly.

From-SVN: r262008

tree-vect-data-refs.c (vect_check_gather_scatter): Fail for reverse storage order accesses rather than asserting they cannot...

2018-06-25  Richard Biener  <rguenther@suse.de>
        Eric Botcazou  <ebotcazou@libertysurf.fr>

	* tree-vect-data-refs.c (vect_check_gather_scatter): Fail
	for reverse storage order accesses rather than asserting
	they cannot happen here.

	* gnat.dg/sso9.adb: New testcase.
	* gnat.dg/sso9_pkg.ads: Likewise.

From-SVN: r262007

2018-06-25  Tom de Vries  <tdevries@suse.de>

	PR debug/86257
	* config/i386/i386.md (define_insn "*tls_global_dynamic_64_<mode>"):
	Use data16 instead of .byte for insn prefix.

	* gcc.target/i386/pr86257.c: New test.

From-SVN: r262006

When turning a user-defined numerical literal into an operator
invocation the literal needs to be translated to the execution
character set.

gcc/cp/ChangeLog:

2018-06-25  Andreas Krebbel  <krebbel@linux.ibm.com>

	PR C++/86082
	* parser.c (make_char_string_pack): Pass this literal chars
	through cpp_interpret_string.
	(cp_parser_userdef_numeric_literal): Check the result of
	make_char_string_pack.

gcc/testsuite/ChangeLog:

2018-06-25  Andreas Krebbel  <krebbel@linux.ibm.com>

	PR C++/86082
	* g++.dg/pr86082.C: New test.

From-SVN: r262003

From-SVN: r262002

	* ginclude/stddef.h: Simplify conditions around avoiding
	re-definition of __size_t.

From-SVN: r261998