re PR rtl-optimization/70174 (ICE at -O1 and above on x86_64-linux-gnu in gen_lowpart_general, at rtlhooks.c:63)

	PR rtl-optimization/70174
	* expmed.c (store_bit_field_using_insv): Use gen_lowpart_if_possible
	followed by gen_lowpart on force_reg instead of just gen_lowpart.

	* gcc.dg/pr70174.c: New test.

From-SVN: r234137

re PR tree-optimization/70169 (ICE at -O1 and above on x86_64-linux-gnu in gen_lsm_tmp_name, at tree-ssa-loop.c:791)

	PR tree-optimization/70169
	* tree-ssa-loop.c (gen_lsm_tmp_name): Handle FUNCTION_DECL and
	LABEL_DECL like VAR_DECL.  Emit nothing instead of gcc_unreachable
	for unknown codes.

	* gcc.dg/pr70169.c: New test.

From-SVN: r234136

re PR rtl-optimization/70160 (gcc ICE at -O2 (seg fault) and above on valid code on x86_64-linux-gnu)

gcc/

	PR target/70160
	* config/i386/i386.c (scalar_chain::convert_reg): Skip uses
	of uninitialized values.

gcc/testsuite/

	PR target/70160
	* gcc.target/i386/pr70160.c: New test.

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

From-SVN: r234135

We do not have a direct conversion instruction from 128 bit DFP to 32
bit DFP so this needs to be done in two steps.  The first needs to be
done with the "prepare for shorter precision rounding mode" in order
to produce a correct result.

gcc/ChangeLog:

2016-03-11  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>

	* config/s390/s390.md ("trunctddd2"): Turn former define_insn into
	define_expand.
	("*trunctddd2"): New pattern definition.
	("trunctdsd2"): Set prep_for_short_prec rounding mode for the
	TD->DD truncation.

gcc/testsuite/ChangeLog:

2016-03-11  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>

	* gcc.target/s390/dfp-1.c: New test.

From-SVN: r234134

This patch replaces a few magic numbers used for floating point
rounding modes with macros.  This is mostly a NoOp change apart from:

fixuns_truncdddi2, fixuns_trunctddi2, fixuns_trunc<mode>si2: Replace 5
with DFP_RND_TOWARD_0 (which is 9).

5 as well as 9 represent round towards 0 with the difference that for
5 the new DFP quantum exception is enabled as well.  This exception
isn't IEEE754 and we do not have an interface to enable and test it
anyway.  So we do not intend to enable it.  This so far should not
have any noticable effect since the quantum exception was not
observable through the Posix functions.

Some pattern ("fix_trunc<mode>di2") is already using rounding mode 9
correctly.

gcc/ChangeLog:

2016-03-11  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>

	* config/s390/s390.md (BFP_RND_*, DFP_RND_*): Add new constant
	definitions for BFP and DFP rounding modes.
	("fixuns_truncdddi2", "fixuns_trunctddi2")
	("fixuns_trunc<BFP:mode><GPR:mode>2", "fixuns_trunc<mode>si2")
	("fix_trunc<DSF:mode><GPR:mode>2", "fix_trunc<mode>di2")
	("fix_trunctf<mode>2"): Use the new constants instead of magic
	numbers.

From-SVN: r234133

The shift_count_or_setmem_operand predicate is now only used for
setmem patterns anymore.  Rename it together with the related
functions.

gcc/ChangeLog:

2016-03-11  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>

	* config/s390/constraints.md: Adjust comment.
	("Y"): Adjust comment.  Rename s390_decompose_shift_count to
	s390_decompose_addrstyle_without_index.
	* config/s390/predicates.md (shift_count_or_setmem_operand):
	Rename to setmem_operand.
	* config/s390/s390-protos.h
	(s390_decompose_shift_count): Rename to
	s390_decompose_addrstyle_without_index.
	* config/s390/s390.c (s390_decompose_shift_count)
	(s390_mem_constraint, print_shift_count_operand)
	(print_operand_address, print_operand): Rename
	s390_decompose_shift_count to
	s390_decompose_addrstyle_without_index and rename
	print_shift_count_operand to print_addrstyle_operand troughout the
	file.
	* config/s390/s390.md ("setmem_long_<P:mode>", "*setmem_long")
	("*setmem_long_and", "*setmem_long_31z", "*setmem_long_and_31z"):
	Rename shift_count_or_setmem_operand to setmem_operand.
	* config/s390/vx-builtins.md ("vec_insert<mode>")
	("vec_promote<mode>"): Replace shift_count_or_setmem_operand with
	nonmemory_operand.

From-SVN: r234132

From-SVN: r234130

	PR target/70168
	* config/rs6000/rs6000.c (rs6000_expand_atomic_compare_and_swap):
	Handle overlapping retval and newval.

From-SVN: r234126

re PR testsuite/70009 (test case libgomp.oacc-c-c++-common/vprop.c fails starting with its introduction in r233607)

	libgomp/
	PR testsuite/70009
	* testsuite/libgomp.oacc-c-c++-common/vprop.c: Make test data signed.

From-SVN: r234124

From-SVN: r234120

	PR target/7044
	* config/aarch64/aarch64.c
	(aarch64_override_options_after_change_1): When forcing
	flag_omit_frame_pointer to be true, use a special value that can
	be detected if this function is called again, thus preventing
	flag_omit_leaf_frame_pointer from being forced to be false.

	* gcc.target/aarch64/pr70044.c: New test.

From-SVN: r234118

	PR c++/70001
	* constexpr.c (cxx_eval_vec_init_1): For pre_init case, reuse
	return value from cxx_eval_constant_expression from earlier
	elements if it is valid constant initializer requiring no
	relocations.

	* g++.dg/cpp0x/constexpr-70001-1.C: New test.
	* g++.dg/cpp0x/constexpr-70001-2.C: New test.
	* g++.dg/cpp0x/constexpr-70001-3.C: New test.

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

From-SVN: r234117

	* common/config/aarch64/aarch64-common.c (aarch64_handle_option):
	Set x_flag_omit_leaf_frame_pointer when handling
	-momit-leaf-frame-pointer.

From-SVN: r234116

	PR lto/69589
	* cgraph.c (cgraph_node::dump): Dump split_part and indirect_call_target.
	* cgraph.h (cgraph_node): Add indirect_call_target flag.
	* ipa.c (has_addr_references_p): Cleanup.
	(is_indirect_call_target_p): New.
	(walk_polymorphic_call_targets): Do not mark virtuals that may be
	called indirectly as local.
	(symbol_table::remove_unreachable_nodes): Compute indirect_call_target.

	* g++.dg/lto/pr69589_0.C: New testcase
	* g++.dg/lto/pr69589_1.C: New testcase

From-SVN: r234115

	PR ipa/69630
	* ipa-devirt.c (possible_polymorphic_call_targets): Do not ICE
	on cxa_pure_virtual.

From-SVN: r234114

	PR lto/69589
	* tree.c (free_lang_data_in_decl): Clear visibility of TYPE_DECL.

From-SVN: r234113

	PR lto/69589
	* tree.c (need_assembler_name_p): Only record main variant type names.

From-SVN: r234112

	PR c++/70153
	* cp-gimplify.c (cp_fold): Handle UNARY_PLUS_EXPR.

	* g++.dg/delayedfold/unary-plus1.C: New test.

From-SVN: r234111

2016-03-10 Andre Vieira <andre.simoesdiasvieira@arm.com>

    gcc/testsuite/
    * gcc.target/arm/pr45701-1.c: Escape brackets.
    * gcc.target/arm/pr45701-2.c: Likewise.

From-SVN: r234109

2016-03-10  Christophe Lyon  <christophe.lyon@linaro.org>

	PR target/70113.
	* config/aarch64/aarch64.h (TARGET_FIX_ERR_A53_843419_DEFAULT):
	Always define to 0 or 1.
	(TARGET_FIX_ERR_A53_843419): New macro.
	* config/aarch64/aarch64-elf-raw.h
	(TARGET_FIX_ERR_A53_843419_DEFAULT): Update for above changes.
	* config/aarch64/aarch64-linux.h: Likewise.
	* config/aarch64/aarch64.c
	(aarch64_override_options_after_change_1): Do not default
	aarch64_nopcrelative_literal_loads to true if Cortex-A53 erratum
	843419 is on.
	(aarch64_attributes): Handle fix-cortex-a53-843419.
	(aarch64_can_inline_p): Likewise.
	* config/aarch64/aarch64.opt (aarch64_fix_a53_err843419): Save.

From-SVN: r234108

gcc/:

        * common.opt (funconstrained-commons, flag_unconstrained_commons): New.
        * tree.c (array_at_struct_end_p): Do not limit to size of decl for
        DECL_COMMONS if flag_unconstrained_commons is set.
        * tree-dfa.c (get_ref_base_and_extent): Likewise.
        * doc/invoke.texi (Optimize Options): Add -funconstrained-commons.
        (funconstrained-commons): Document.

gcc/testsuite:

	* gfortran.dg/unconstrained_commons.f: New.


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

From-SVN: r234106

2016-03-10  Christophe Lyon  <christophe.lyon@linaro.org>

	* config/aarch64/t-aarch64 (OPTIONS_H_EXTRA): Add
	aarch64-fusion-pairs.def and aarch64-tuning-flags.def

From-SVN: r234105

gcc/

	* tree-vect-stmts.c (vectorizable_mask_load_store): Check mask
	has a proper number of elements.

From-SVN: r234104

Optimizing indirect jumps to direct jumps, and deleting dead insns can
lead to changes in register lifetimes, which in turn can result in bad
reg_equiv info being passed to reload.  So do these tasks before
calculating reg_equiv info.

gcc/
	PR rtl-optimization/69195
	PR rtl-optimization/47992
	* ira.c (recorded_label_ref): Delete.
	(update_equiv_regs): Return void.
	(indirect_jump_optimize): New function.
	(ira): Call indirect_jump_optimize and delete_trivially_dead_insns
	before regstat_compute_ri.  Don't rebuild_jump_labels here.
	Delete update_regstat.
gcc/testsuite/
	* gcc.dg/pr69195.c: New.
	* gcc.dg/pr69238.c: New.

From-SVN: r234101

2016-03-10  Tom de Vries  <tom@codesourcery.com>

	PR testsuite/68915
	* gcc.dg/vect/pr46032.c: Xfail scan if alignment requirements not met.

From-SVN: r234100

2016-03-10  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/70128
	* tree-ssa-structalias.c (set_uids_in_ptset): Set
	vars_contains_nonlocal for any FUNCTION_DECL or LABEL_DECL.

	* gcc.dg/tree-ssa/alias-34.c: New testcase.
	* gcc.dg/tree-ssa/alias-35.c: Likewise.

From-SVN: r234099

From-SVN: r234097

re PR tree-optimization/70152 (gcc ICE at -O3 and above on valid code on x86_64-linux-gnu in "replace_uses_by")

	PR tree-optimization/70152
	* tree-sra.c (replace_removed_params_ssa_names): Copy over
	SSA_NAME_OCCURS_IN_ABNORMAL_PHI from old_name to new_name.

	* gcc.dg/pr70152.c: New test.

From-SVN: r234092

re PR target/70086 (ICE: in extract_constrain_insn_cached, at recog.c:2202 (insn does not satisfy its constraints) with -mavx512vl -ffloat-store)

	PR target/70086
	* config/i386/i386.md (truncdfsf2 splitter): Use gen_vec_concatv2df
	instead of gen_sse2_loadlpd.
	* config/i386/sse.md (*vec_concatv2df): Rename to...
	(vec_concatv2df): ... this.

	* gcc.target/i386/pr70086-1.c: New test.
	* gcc.target/i386/pr70086-2.c: New test.
	* gcc.target/i386/pr70086-3.c: New test.

From-SVN: r234091

	PR tree-optimization/70127
	* fold-const.c (operand_equal_p): Revert the 2015-10-28 change.

	* gcc.c-torture/execute/pr70127.c: New test.

From-SVN: r234090

	gcc/c/
	* c-parser.c (c_parser_oacc_loop): Update cclauses and clauses
	when calling c_finish_omp_clauses.

	gcc/cp/
	* parser.c (cp_parser_oacc_loop): Update cclauses and clauses
	when calling c_finish_omp_clauses.

	gcc/testsuite/
	* c-c++-common/goacc/combined-directives-2.c: New test.

From-SVN: r234089

diagnostic_show_locus can sometimes do the wrong thing when handling
expressions built up from macros.

PR c++/70105 (currently marked as a P3 regression) has an example of
a diagnostic where over 500 lines of irrelevant source are printed,
and underlined, giving >1000 lines of useless spew to stderr.

This patch adds extra sanitization to diagnostic-show-locus.c, so that
we only attempt to print underlines and secondary locations if such
locations are "sufficiently sane" relative to the primary location
of a diagnostic.

This "sufficiently sane" condition is implemented by a new helper
function compatible_locations_p, which requires such locations to
have the same macro expansion hierarchy as the primary location,
using linemap_macro_map_loc_unwind_toward_spelling, effectively
mimicing the expansion performed by LRK_SPELLING_LOCATION.

This may be too strong a condition, but it effectively fixes
PR c++/70105, without removing any underlines in my testing.

Successfully bootstrapped&regrtested in combination with the previous
patch on x86_64-pc-linux-gnu; adds 15 new PASS results to g++.sum
and 4 new PASS results to gcc.sum.

gcc/ChangeLog:
	PR c/68473
	PR c++/70105
	* diagnostic-show-locus.c (compatible_locations_p): New function.
	(layout::layout): Sanitize ranges using compatible_locations_p.

gcc/testsuite/ChangeLog:
	PR c/68473
	PR c++/70105
	* g++.dg/diagnostic/pr70105.C: New test.
	* gcc.dg/plugin/diagnostic-test-expressions-1.c (foo): New decl.
	(test_multiple_ordinary_maps): New test function.

libcpp/ChangeLog:
	PR c/68473
	PR c++/70105
	* line-map.c (linemap_macro_map_loc_unwind_toward_spelling): Move
	decl...
	* include/line-map.h
	(linemap_macro_map_loc_unwind_toward_spelling): ...here,
	converting from static to extern.

From-SVN: r234088

gcc/ChangeLog:
	PR c/68473
	PR c++/70105
	* diagnostic-show-locus.c (layout_range::layout_range): Replace
	location_range param with three const expanded_locations * and a
	bool.
	(layout::layout): Replace call to
	rich_location::lazily_expand_location with get_expanded_location.
	Extract the range and perform location expansion here, passing
	the results to the layout_range ctor.
	* diagnostic.c (source_range::debug): Delete.
	* diagnostic.h (diagnostic_expand_location): Reimplement in terms
	of rich_location::get_expanded_location.
	* gcc-rich-location.c (get_range_for_expr): Delete.
	(gcc_rich_location::add_expr): Reimplement to avoid the
	rich_location::add_range overload that took a location_range,
	passing a location_t instead.

gcc/testsuite/ChangeLog:
	PR c/68473
	PR c++/70105
	* gcc.dg/plugin/diagnostic_plugin_show_trees.c (show_tree):
	Drop range information from call to inform_at_rich_loc.
	* gcc.dg/plugin/diagnostic_plugin_test_show_locus.c (add_range):
	New.
	(test_show_locus): Replace calls to rich_location::add_range with
	calls to add_range.  Rewrite the tests that used the now-defunct
	rich_location ctor taking a source_range.  Simplify other tests
	by replacing calls to COMBINE_LOCATION_DATA with calls to
	make_location.

libcpp/ChangeLog:
	PR c/68473
	PR c++/70105
	* include/line-map.h (source_range::debug): Delete.
	(struct location_range): Update comment.  Replace
	expanded_location fields "m_start", "m_finish", and "m_caret" with
	a source_location field: "m_loc".
	(class rich_location): Reword comment.
	(rich_location::get_loc): Reimplement in terms of a new overloaded
	variant which takes an unsigned int.
	(rich_location::get_loc_addr): Delete.
	(rich_location::add_range): Drop params "start" and "finish" in
	favor of param "loc".  Drop overloaded variants taking a
	source_range or location_range *.
	(rich_location::lazily_expand_location): Delete in favor of...
	(rich_location::get_expanded_location): New decl.
	(rich_location::m_loc): Delete field.
	(rich_location::m_column_override): New field.
	* line-map.c (rich_location::rich_location):  Drop name of
	line_maps * param.  Update initializations for deletion of field
	"m_loc" and addition of field "m_column_override".  Reimplement
	body as a call to add_range.  Delete overloaded variant taking a
	source_range.
	(rich_location::get_loc): New function.
	(rich_location::lazily_expand_location): Delete in favor of...
	(rich_location::get_expanded_location): New function.
	(rich_location::override_column): Reimplement.
	(rich_location::add_range): Drop params "start" and "finish" in
	favor of param "loc".  Eliminate location expansion in favor of
	simply storing loc.  Drop overloaded variants taking a
	source_range or location_range *.
	(rich_location::set_range): Eliminate location expansion.

From-SVN: r234087

2016-03-09  Richard Biener  <rguenther@suse.de>
	Jakub Jelinek  <jakub@redhat.com>

	PR tree-optimization/70138
	* tree-vect-loop-manip.c (vect_update_ivs_after_vectorizer):
	Also skip vect_double_reduction_def.

	* gcc.dg/vect/pr70138-1.c: New testcase.
	* gcc.dg/vect/pr70138-2.c: Likewise.

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

From-SVN: r234086

re PR target/70049 (Error: operand size mismatch for `vpextrw' (wrong assembly generated) with -masm=intel)

	PR target/70049
	* config/i386/sse.md (*vec_extract<mode>): Use %0 instead of %k0
	if the operand is "m".

	* gcc.target/i386/pr70049.c: New test.

From-SVN: r234085

2016-03-09  Richard Biener  <rguenther@suse.de>

	c-family/
	PR c/70143
	* c-common.c (strict_aliasing_warning): Add back
	alias_sets_conflict_p check.

	* gcc.dg/Wstrict-aliasing-bogus-upcast.c: New testcase.
	* gcc.dg/Wstrict-aliasing-struct-with-char-member.c: Likewise.
	* gcc.dg/Wstrict-aliasing-struct-member.c: Remove again.

From-SVN: r234084

From-SVN: r234083

	* gcc.dg/vect/bb-slp-34.c: Really don't xfail on aarch64-*-*,
	arm-*-*.

From-SVN: r234081

	PR middle-end/67278
	* gcc.dg/simd-7.c: Add -w -Wno-psabi to dg-options.

From-SVN: r234080

	PR target/67278
	* gcc.dg/simd-8.c: Add -w -Wno-psabi to dg-options.

	PR middle-end/70050
	* gcc.dg/pr70050.c: Add -w to dg-options.  Fix up PR number
	in testcase comment.

From-SVN: r234079