PR tree-optimization/82004
	* gimple-match-head.c (optimize_pow_to_exp): New function.
	* match.pd (pow(C,x) -> exp(log(C)*x)): Wrap with #if GIMPLE.
	Don't fold to exp if optimize_pow_to_exp is false.

	* gcc.dg/pr82004.c: New test.

From-SVN: r258930

2018-03-28  Martin Liska  <mliska@suse.cz>

	PR other/84819
	* calls.c (initialize_argument_information): Fix trailing space.
	* common.opt: Fix typo and provide better explanation for
	-fsanitize-coverage option.
	* config/i386/i386.opt: Fix typo.

From-SVN: r258925

2018-03-28  Jakub Jelinek  <jakub@redhat.com>
	    Martin Liska  <mliska@suse.cz>

	PR sanitizer/85081
	* gimplify.c (asan_poison_variable): Don't do the check for
	gimplify_omp_ctxp here.
	(gimplify_decl_expr): Do it here.
	(gimplify_target_expr): Likewise.
2018-03-28  Jakub Jelinek  <jakub@redhat.com>
	    Martin Liska  <mliska@suse.cz>

	PR sanitizer/85081
	* g++.dg/asan/pr85081.C: New test.

Co-Authored-By: Martin Liska <mliska@suse.cz>

From-SVN: r258924

2018-03-28  Martin Liska  <mliska@suse.cz>

	PR target/84988
	* config/i386/i386.c (ix86_function_arg_advance): Do not call
	chkp_type_bounds_count if MPX is not enabled.

From-SVN: r258923

gcc/
	* config/nds32/nds32.h (BRANCH_COST): Adjust cost.

From-SVN: r258921

	* gfortran.h (gfc_dt): Rename default_exp field to dec_ext.
	* ioparm.def (IOPARM_dt_default_exp): Rename to ...
	(IOPARM_dt_dec_ext): ... this.
	* trans-io.c (build_dt): Adjust for default_exp renaming to
	dec_ext and IOPARM_dt_default_exp renaming to IOPARM_dt_dec_ext.
	* io.c (match_io): Likewise.

	* io/io.h (IOPARM_DT_DEFAULT_EXP): Rename to ...
	(IOPARM_DT_DEC_EXT): ... this.
	* io/list_read.c (parse_real): Adjust for IOPARM_DT_DEFAULT_EXP
	renaming to IOPARM_DT_DEC_EXT.
	(read_real): Likewise.
	* io/read.c (read_f): Likewise.

From-SVN: r258920

When compiling with -fconcepts,
cp_parser_template_declaration_after_export calls
cp_parser_template_introduction and that preparses qualified-ids not
preceded by typename in such a way that, when we get to
cp_parser_parse_and_diagnose_invalid_type_name and then
cp_parser_diagnose_invalid_type_name, the nested name specifier no
longer carries the previous template-dependent context, so we don't
stand a chance to suggest the use of 'typename' any more.  Thus,
tolerate in the testcase the poorer error messages we get.

for  gcc/testsuite/ChangeLog

	PR c++/84789
	* g++.dg/template/pr84789.C: Adjust for testing with
	-fconcepts too.

From-SVN: r258915

When an anon struct gets a name through a typedef, we reset its
linkage and that of its members.  Member functions may get vague
linkage, which schedules them for deferred output, but we don't want
to add them to the queue if they're uninstantiated templates,
e.g. because the enclosing function is a template.  They will be added
as needed when the enclosing template is instantiated.


for  gcc/cp/ChangeLog

	PR c++/84973
	* decl2.c (note_vague_linkage_fn): Don't defer uninstantiated
	templates.

for  gcc/testsuite/ChangeLog

	PR c++/84973
	* g++.dg/template/pr84973.C: New.
	* g++.dg/template/pr84973-2.C: New.
	* g++.dg/template/pr84973-3.C: New.

From-SVN: r258914

We reject extended statement-expressions in template parameters, so we
might as well reject them in constant expressions used in noexcept
specifications.

for  gcc/cp/ChangeLog

	PR c++/84968
	* tree.c (strip_typedefs_expr): Reject STATEMENT_LISTs.

for  gcc/testsuite/ChangeLog

	PR c++/84968
	* g++.dg/eh/pr84968.C: New.

From-SVN: r258913

From-SVN: r258912

re PR target/84914 (PowerPC complex multiply/divide calls the wrong function when -mabi=ieeelongdouble)

[gcc]
2018-03-27  Michael Meissner  <meissner@linux.vnet.ibm.com>

	PR target/84914
	* config/rs6000/rs6000.c (create_complex_muldiv): New helper
	function to create the function decl for complex long double
	multiply and divide for -mabi=ieeelongdouble.
	(init_float128_ieee): Call it.

[gcc/testsuite]
2018-03-27  Michael Meissner  <meissner@linux.vnet.ibm.com>

	PR target/84914
	* gcc.target/powerpc/mulkc-2.c: New tests to make sure complex
	long double multiply/divide uses the correct function.
	* gcc.target/powerpc/mulkc-3.c: Likewise.
	* gcc.target/powerpc/divkc-2.c: Likewise.
	* gcc.target/powerpc/divkc-3.c: Likewise.

From-SVN: r258908

From-SVN: r258906

/cp
2018-03-27  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/85067
	* method.c (defaulted_late_check): Partially revert r253321 changes,
	do not early return upon error.

/testsuite
2018-03-27  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/85067
	* g++.dg/cpp0x/defaulted51.C: New.
	* g++.dg/cpp0x/constexpr-68754.C: Adjust.

From-SVN: r258904

	PR c++/85077
	* cp-gimplify.c (cp_fold) <case CONSTRUCTOR>: For ctors with vector
	type call fold to generate VECTOR_CSTs when possible.

	* g++.dg/ext/vector35.C: New test.

From-SVN: r258903

	PR c++/85061
	* c-common.c (fold_offsetof_1) <case COMPOUND_EXPR>: Assert that
	get_base_address of the second operand is a VAR_P, rather than the
	operand itself, and use gcc_checking_assert instead of gcc_assert.

	* g++.dg/ext/builtin-offsetof3.C: New test.

From-SVN: r258902

	PR c++/85076
	* tree.c (cp_build_reference_type): If to_type is error_mark_node,
	return it right away.

	* g++.dg/cpp1y/pr85076.C: New test.

From-SVN: r258901

2018-03-27  Thomas Koenig  <tkoenig@gcc.gnu.org>

	PR fortran/85084
	* frontend-passes.c (gfc_run_passes): Do not run front-end
	optimizations if a previous error occurred.

2018-03-27  Thomas Koenig  <tkoenig@gcc.gnu.org>

	PR fortran/85084
	* gfortran.dg/matmul_rank_1.f90: New test.

From-SVN: r258900

2018-03-27  Thomas Koenig  <tkoenig@gcc.gnu.org>
	Harald Anlauf  <anlauf@gmx.de>

	PR fortran/85083
	* primary.c (gfc_convert_to_structure_constructor): Check
	conformance of argument types in structure constructor.

2018-03-27  Thomas Koenig  <tkoenig@gcc.gnu.org>
	Harald Anlauf  <anlauf@gmx.de>

	* gfortran.dg/structure_constructor_15.f90: New test.


Co-Authored-By: Harald Anlauf <anlauf@gmx.de>

From-SVN: r258899

search.c (check_final_overrider): Use inform instead of error for the diagnostics of the overridden functions.

2018-03-27  Volker Reichelt  <v.reichelt@netcologne.de>

        * search.c (check_final_overrider): Use inform instead of error
        for the diagnostics of the overridden functions.  Tweak wording.

        * g++.dg/cpp0x/defaulted2.C: Use dg-message instead of dg-error
        for the diagnostics of overridden functions.  Adjust for new wording.
        * g++.dg/cpp0x/implicit1.C: Likewise.
        * g++.dg/cpp0x/override1.C: Likewise.
        * g++.dg/cpp1y/auto-fn18.C: Likewise.
        * g++.dg/eh/shadow1.C: Likewise.
        * g++.dg/inherit/covariant12.C: Likewise.
        * g++.dg/inherit/covariant14.C: Likewise.
        * g++.dg/inherit/covariant15.C: Likewise.
        * g++.dg/inherit/covariant16.C: Likewise.
        * g++.dg/inherit/covariant22.C: Likewise.
        * g++.dg/inherit/crash3.C: Likewise.
        * g++.dg/inherit/error2.C: Likewise.
        * g++.dg/template/crash100.C: Likewise.
        * g++.old-deja/g++.eh/spec6.C: Likewise.
        * g++.old-deja/g++.mike/p811.C: Likewise.
        * g++.old-deja/g++.other/virtual11.C: Likewise.
        * g++.old-deja/g++.other/virtual4.C: Likewise.

From-SVN: r258898

When -fcf-protection=branch -mibt are used, we need to insert ENDBR
to trampoline.  TRAMPOLINE_SIZE is creased by 4 bytes to accommodate
4-byte ENDBR instruction.

gcc/

	PR target/85044
	* config/i386/i386.c (ix86_trampoline_init): Insert ENDBR for
	-fcf-protection=branch -mibt.
	* config/i386/i386.h (TRAMPOLINE_SIZE): Increased by 4 bytes.

gcc/testsuite/

	PR target/85044
	* gcc.target/i386/pr85044.c: New test.

From-SVN: r258897

gcc/testsuite/ChangeLog:
	* c-c++-common/Warray-bounds-4.c: Disable assertion for targets
	other than x86.

From-SVN: r258896

The test in question fails for ilp32. The initial analysis I did in the PR for it
is that for ILP32 we generate somewhat different address forms that we'd need to adjust aarch64_classify_address to catch.
Given the optimisation this test checks for was added for GCC 8 it is not a regression, and improving the codegen on ILP32
would be an enhancement rather than a fix. So Richi has asked for it to be marked as XFAIL on ILP32, which is what this
patch does.
Checked that the test still passes on LP64 and appears as XFAIL on -mabi=ilp32.

	PR target/83009
	* gcc.target/aarch64/store_v2vec_lanes.c: XFAIL for ilp32.

From-SVN: r258894

This has been in my patch stack for quite some time. The problem here
was that we weren't handling arm_word_relocations in
arm_valid_symbolic_address and is the surest fix for this
for GCC8 and GCC7.

Regression tested on arm-none-linux-gnueabihf . Applying to
trunk and backporting to GCC-7 in a day or so.

regards
Ramana

2018-03-27  Ramana Radhakrishnan  <ramana.radhakrishnan@arm.com>

	PR target/81863
	* config/arm/arm.c (arm_valid_symbolic_address): Handle arm_word_relocations


2018-03-27  Ramana Radhakrishnan  <ramana.radhakrishnan@arm.com>

	PR target/81863
	* gcc.target/arm/pr81863.c: New test.

From-SVN: r258886

PR target/85056

	gcc/
	* config/nvptx/nvptx.c (nvptx_assemble_decl_begin): Add '[]' to
	extern array declarations.

	gcc/testsuite/
	* testsuite/gcc.target/nvptx/pr85056.c: New test.
	* testsuite/gcc.target/nvptx/pr85056a.c: New test.

From-SVN: r258885

2018-03-27  Richard Biener  <rguenther@suse.de>

	PR testsuite/82847
	* lib/target-supports.exp (check_ssse3_available): New function.
	(check_effective_target_vect_perm_short): Enable for x86 if
	check_ssse3_available.

From-SVN: r258882

2018-03-27  Richard Biener  <rguenther@suse.de>

	PR middle-ed/84067
	* match.pd ((A * C) +- (B * C) -> (A+-B) * C): Guard with
	explicit single_use checks.

From-SVN: r258881

re PR tree-optimization/85082 (ICE with -Ofast in vn_reference_insert_pieces, at tree-ssa-sccvn.c:2624)

2018-03-27  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/85082
	* tree-ssa-sccvn.c (vn_reference_lookup_or_insert_for_pieces):
	Valueize the VUSE.

	* gfortran.dg/pr85082.f90: New testcase.

From-SVN: r258877

2018-03-27  Chenghua Xu  <paul.hua.gm@gmail.com>

    * gcc.target/mips/umips-stroe16-2.c: Change "length = 2"
    to "l=2" in dg-final.

From-SVN: r258876

2018-03-27  Chenghua Xu  <paul.hua.gm@gmail.com>

    * gcc.target/mips/fix-r4000-1.c: Delete "[^\n]+" in dg-final.
    * gcc.target/mips/fix-r4000-2.c: Likewise.
    * gcc.target/mips/fix-r4000-3.c: Likewise.
    * gcc.target/mips/fix-r4000-4.c: Likewise.
    * gcc.target/mips/fix-r4000-5.c: Likewise.
    * gcc.target/mips/fix-r4000-6.c: Likewise.
    * gcc.target/mips/fix-r4000-7.c: Likewise.
    * gcc.target/mips/fix-r4000-8.c: Likewise.
    * gcc.target/mips/fix-r4000-9.c: Likewise.
    * gcc.target/mips/fix-r4000-10.c: Likewise.
    * gcc.target/mips/fix-r4000-7.c: Change dg-final
    "mulditi3_r4000" instead of "mulditi3".
    * gcc.target/mips/fix-r4000-8.c: Change dg-final
    "umulditi3_r4000" instead of "umulditi3".

From-SVN: r258875

	PR c++/85068
	* class.c (update_vtable_entry_for_fn): Don't ICE if base_binfo
	is NULL.  Assert if thunk_binfo is NULL then errorcount is non-zero.

	* g++.dg/inherit/covariant22.C: New test.

From-SVN: r258873

2018-03-27  Richard Biener  <rguenther@suse.de>

	PR testsuite/84004
	* gcc.dg/vect/vect-95.c: Never expect the loop to be peeled for
	alignment.

From-SVN: r258872

2018-03-27  Ramana Radhakrishnan  <ramana.radhakrishnan@arm.com>

	* config.gcc (aarch64*-*-linux*): New TARGET_DEFAULT_ASYNC_UNWIND_TABLES
	* common/config/aarch64/aarch64-common.c (aarch64_optimization_table[]):
	Turn on fasynchronous-unwind-tables and funwind-tables.

From-SVN: r258871

re PR c++/84632 (internal compiler error: tree check: expected record_type or union_type or qual_union_type, have array_type in reduced_constant_expression_p, at cp/constexpr.c:1778)

/cp
2018-03-27  Paolo Carlini  <paolo.carlini@oracle.com>
	    Jason Merrill  <jason@redhat.com>

	PR c++/84632
	* init.c (build_aggr_init): When initializing from array,
	reject anything but CONSTRUCTORs and TARGET_EXPRs.
	(build_vec_init): Handle separately ARRAY_TYPEs.

/testsuite
2018-03-27  Paolo Carlini  <paolo.carlini@oracle.com>
	    Jason Merrill  <jason@redhat.com>

	PR c++/84632
	* g++.dg/init/array49.C: New.
	* g++.dg/torture/pr70499.C: Adjust.

Co-Authored-By: Jason Merrill <jason@redhat.com>

From-SVN: r258870

From-SVN: r258869

From-SVN: r258866

    
    The gccgo runtime is never stale, and on a system with gc sources in
    ~/go the test may wind up checking whether the gc runtime is stale.
    
    Reviewed-on: https://go-review.googlesource.com/102282

From-SVN: r258865

	PR target/85073
	* config/i386/i386.md (*bmi_blsr_<mode>_cmp): New insn pattern.
	(*bmi_blsr_<mode>_ccz): Ditto.

testsuite/ChangeLog:

	PR target/85073
	* gcc.target/i386/pr85073.c: New test.

From-SVN: r258864

	* decl.c (grokdeclarator): Ignore attributes on type-specifiers
	here.

From-SVN: r258859

	* pt.c (unify_pack_expansion): Don't try to deduce generated packs.
	* cp-tree.h (TEMPLATE_PARM_P): New.

From-SVN: r258856

	* include/std/variant (__get): Qualify calls to avoid ADL.
	(__select_index): Adjust whitespace.
	(variant): Add using-declaration to workaround Clang bug.

From-SVN: r258854