* gcc.dg/stack-check-16.c: New test.

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

From-SVN: r256896

	* xcoff.c (xcoff_incl_compare): New function.
	(xcoff_incl_search): New function.
	(xcoff_process_linenos): Use bsearch to find include file.
	(xcoff_initialize_fileline): Sort include file information.

From-SVN: r256895

2018-01-19  Tom de Vries  <tom@codesourcery.com>
	    Cesar Philippidis  <cesar@codesourcery.com>

	PR target/83920

	* config/nvptx/nvptx.c (nvptx_single): Fix jit workaround.

	* testsuite/libgomp.oacc-c-c++-common/pr83920.c: New test.
	* testsuite/libgomp.oacc-fortran/pr83920.f90: New test.

Co-Authored-By: Cesar Philippidis <cesar@codesourcery.com>

From-SVN: r256894

	PR target/83790

	gcc/
	* config/nvptx/nvptx.c (output_init_frag): Don't use generic address
	spaces for function labels.

	gcc/testsuite/
	* gcc.target/nvptx/indirect_call.c: New test.

From-SVN: r256891

	* g++.dg/torture/pr83619.C: Remove dg-message.

From-SVN: r256890

2018-01-19  Martin Liska  <mliska@suse.cz>

	* gcc.dg/predict-1.c: Adjust expected probability.
	* gcc.dg/predict-3.c: Likewise.
	* gcc.dg/predict-5.c: Likewise.
	* gcc.dg/predict-6.c: Likewise.
	* gcc.dg/predict-9.c: Likewise.

From-SVN: r256889

2018-01-19  Martin Liska  <mliska@suse.cz>

	* predict.def (PRED_LOOP_EXIT): Change from 85 to 89.
	(PRED_LOOP_EXIT_WITH_RECURSION): Change from 72 to 78.
	(PRED_LOOP_EXTRA_EXIT): Change from 83 to 67.
	(PRED_OPCODE_POSITIVE): Change from 64 to 59.
	(PRED_TREE_OPCODE_POSITIVE): Change from 64 to 59.
	(PRED_CONST_RETURN): Change from 69 to 65.
	(PRED_NULL_RETURN): Change from 91 to 71.
	(PRED_LOOP_IV_COMPARE_GUESS): Change from 98 to 64.
	(PRED_LOOP_GUARD): Change from 66 to 73.

From-SVN: r256888

2018-01-19  Martin Liska  <mliska@suse.cz>

	* predict.c (predict_insn_def): Add new assert.
	(struct branch_predictor): Change type to signed integer.
	(test_prediction_value_range): Amend test to cover
	PROB_UNINITIALIZED.
	* predict.def (PRED_LOOP_ITERATIONS): Use the new constant.
	(PRED_LOOP_ITERATIONS_GUESSED): Likewise.
	(PRED_LOOP_ITERATIONS_MAX): Likewise.
	(PRED_LOOP_IV_COMPARE): Likewise.
	* predict.h (PROB_UNINITIALIZED): Define new constant.

From-SVN: r256887

2018-01-19  Martin Liska  <mliska@suse.cz>

	* analyze_brprob.py: Support new format that can be easily
	parsed. Add new column to report.
2018-01-19  Martin Liska  <mliska@suse.cz>

	* predict.c (dump_prediction): Add new format for
	analyze_brprob.py script which is enabled with -details
	suboption.
	* profile-count.h (precise_p): New function.

From-SVN: r256886

This PR is an odd case in which, due to the low optimisation level,
we enter vectorisation with:

  outer1:
    x_1 = PHI <x_3(outer2), ...>;
    ...

  inner:
    x_2 = 0;
    ...

  outer2:
    x_3 = PHI <x_2(inner)>;

These statements are tentatively treated as a double reduction by
vect_force_simple_reduction, but in the end only x_3 and x_2 are marked
as relevant.  vect_analyze_loop_operations skips over x_3, leaving the
vectorizable_reduction check to a presumed future test of x_1, which
in this case never happens.  We therefore end up vectorising x_2 only
(complete with peeling for niters!) and leave the scalar x_3 in place.

This caused a segfault in the support for fully-masked loops,
since there were no statements that needed masking.  Fixed by
checking for that.

But I think this is also a flaw in vect_analyze_loop_operations.
Outer loop vectorisation reduces the number of times that the
inner loop is executed, so it wouldn't necessarily be valid
to leave the scalar x_3 in place for all vectorisable x_2.
There's already code to forbid that when x_1 isn't present:

              /* FORNOW: we currently don't support the case that these phis
                 are not used in the outerloop (unless it is double reduction,
                 i.e., this phi is vect_reduction_def), cause this case
                 requires to actually do something here.  */

I think we need to do the same if x_1 is present but not relevant.

2018-01-19  Richard Sandiford  <richard.sandiford@linaro.org>

gcc/
	PR tree-optimization/83922
	* tree-vect-loop.c (vect_verify_full_masking): Return false if
	there are no statements that need masking.
	(vect_active_double_reduction_p): New function.
	(vect_analyze_loop_operations): Use it when handling phis that
	are not in the loop header.

gcc/testsuite/
	PR tree-optimization/83922
	* gcc.dg/pr83922.c: New test.

From-SVN: r256885

This testcase ICEd because we converted the initial value of an
induction to the vector element type even for nested inductions.
This isn't necessary because the initial expression is vectorised
normally, and it meant that init_expr was no longer the original
statement operand by the time we called vect_get_vec_def_for_operand.

Also, adding the conversion code here made the existing SLP conversion
redundant.

2018-01-19  Richard Sandiford  <richard.sandiford@linaro.org>

gcc/
	PR tree-optimization/83914
	* tree-vect-loop.c (vectorizable_induction): Don't convert
	init_expr or apply the peeling adjustment for inductions
	that are nested within the vectorized loop.

gcc/testsuite/
	PR tree-optimization/83914
	* gcc.dg/vect/pr83914.c: New test.

From-SVN: r256884

These tests are failing for a silly reason. They scan for an occurrence of the NEGS instruction.
NEGS (and NEG in general) is a pre-UAL alias of RSB with an immediate of 0 and we only emit it
in one pattern: *thumb2_negsi2_short in thumb2.md. In all other instances of negation we emit
the modern RSB mnemonic. This causes needless differences in assembly output.
For example, for these testcases we emit NEG when compiling for -march=armv7-a, but for armv7ve
we emit RSB, causing the scan-assembler tests to fail.

This patch updates the *thumb2_negsi2_short pattern to use the RSB mnemonic and
fixes the flaky scan-assembler directives.

These tests now pass for my compiler configured with:
--with-cpu=cortex-a15 --with-fpu=neon-vfpv4 --with-float=hard --with-mode=thumb

Bootstrapped and tested on arm-none-linux-gnueabihf as well.

	* config/arm/thumb2.md (*thumb2_negsi2_short): Use RSB mnemonic
	instead of NEG.

	* gcc.target/arm/negdi-1.c: Remove bogus assembler scan for negs.
	* gcc.target/arm/negdi-2.c: Likewise.
	* gcc.target/arm/thumb-16bit-ops.c: Replace scan for NEGS with RSBS.
--This line,gand those below, will be ignored--

M    gcc/config/arm/thumb2.md
M    gcc/ChangeLog
M    gcc/testsuite/gcc.target/arm/thumb-16bit-ops.c
M    gcc/testsuite/gcc.target/arm/negdi-1.c
M    gcc/testsuite/gcc.target/arm/negdi-2.c
M    gcc/testsuite/ChangeLog

From-SVN: r256881

The scan-assembler tests here check for MOVS for Thumb1 and MOV for Thumb2,
but in fact there's no reason why we wouldn't generate MOVS for Thumb2 as well,
it really depends on a lot of optimisation decisions.
The only behaviour we want to test is that we move a 0 constant into a register
only once, which can be achieved with either MOV or MOVS.
Simplify the check by always checking for either MOV or MOVS.

      * gcc.target/arm/pr40956.c: Adjust scan-assembler pattern.

From-SVN: r256880

2018-01-19  Christophe Lyon  <christophe.lyon@linaro.org>

	* testsuite/ext/special_functions/airy_ai/check_nan.cc: Fix
          dg-options and dg-add-options order.
	* testsuite/ext/special_functions/airy_bi/check_nan.cc: Likewise.
	* testsuite/ext/special_functions/conf_hyperg/check_nan.cc:
	Likewise.
	* testsuite/ext/special_functions/hyperg/check_nan.cc: Likewise.
	* testsuite/special_functions/01_assoc_laguerre/check_nan.cc:
	Likewise.
	* testsuite/special_functions/02_assoc_legendre/check_nan.cc:
	Likewise.
	* testsuite/special_functions/03_beta/check_nan.cc: Likewise.
	* testsuite/special_functions/04_comp_ellint_1/check_nan.cc:
	Likewise.
	* testsuite/special_functions/05_comp_ellint_2/check_nan.cc:
	Likewise.
	* testsuite/special_functions/06_comp_ellint_3/check_nan.cc:
	Likewise.
	* testsuite/special_functions/06_comp_ellint_3/pr66689.cc:
	Likewise.
	* testsuite/special_functions/07_cyl_bessel_i/check_nan.cc:
	Likewise.
	* testsuite/special_functions/08_cyl_bessel_j/check_nan.cc:
	Likewise.
	* testsuite/special_functions/09_cyl_bessel_k/check_nan.cc:
	Likewise.
	* testsuite/special_functions/10_cyl_neumann/check_nan.cc:
	Likewise.
	* testsuite/special_functions/11_ellint_1/check_nan.cc: Likewise.
	* testsuite/special_functions/12_ellint_2/check_nan.cc: Likewise.
	* testsuite/special_functions/13_ellint_3/check_nan.cc: Likewise.
	* testsuite/special_functions/13_ellint_3/pr66689.cc: Likewise.
	* testsuite/special_functions/14_expint/check_nan.cc: Likewise.
	* testsuite/special_functions/15_hermite/check_nan.cc: Likewise.
	* testsuite/special_functions/16_laguerre/check_nan.cc: Likewise.
	* testsuite/special_functions/17_legendre/check_nan.cc: Likewise.
	* testsuite/special_functions/18_riemann_zeta/check_nan.cc:
	Likewise.
	* testsuite/special_functions/19_sph_bessel/check_nan.cc:
	Likewise.
	* testsuite/special_functions/20_sph_legendre/check_nan.cc:
	Likewise.
	* testsuite/special_functions/21_sph_neumann/check_nan.cc:
	Likewise.

From-SVN: r256879

This testcase tests 32-bit ARM state functionality, so add the -marm to make it explicit
as well as to avoid Thumb1 hard-float errors for certain toolchain configurations.


     * gcc.target/arm/pr79058.c: Add arm_arm_ok check and -marm to options.

From-SVN: r256878

    
    This makes no difference on most systems, because <sys/resource.h>
    renames the type appropriately anyhow, but apparently it makes a
    difference on AIX.
    
    Reviewed-on: https://go-review.googlesource.com/88076

From-SVN: r256877

	* Makefile.am (GOTOOLS_TEST_TIMEOUT): Define.
	(check-go-tool): Pass -test.timeout with GOTOOLS_TEST_TIMEOUT.
	(check-cgo-test, check-carchive-test, check-vet): Likewise.
	* Makefile.in: Rebuild.

From-SVN: r256876

    
    Solaris 10 uses int32 for the Pw_uid and Pw_gid fields of Passwd,
    but most systems, including Solaris 11, use uint32.  Force uint32
    for consistency and to fix the build.
    
    Reviewed-on: https://go-review.googlesource.com/88195

From-SVN: r256875

    
    Reviewed-on: https://go-review.googlesource.com/88236

From-SVN: r256874

    
    Reviewed-on: https://go-review.googlesource.com/88275

From-SVN: r256873

    
    Patch by Rainer Orth.
    
    Reviewed-on: https://go-review.googlesource.com/88376

From-SVN: r256872

	* gcc.dg/torture/pr52451.c (main): Skip long double test on
	hppa*-*-hpux*.

From-SVN: r256871

From-SVN: r256870

	PR ipa/83619
	PR testsuite/83934
	* g++.dg/torture/pr83619.C (e): Define before first use instead of
	forward declaration.

From-SVN: r256867

	PR c++/83714
	* search.c (any_dependent_bases_p): Handle null TREE_BINFO.
	* pt.c (instantiation_dependent_scope_ref_p): True if
	any_dependent_bases_p.

From-SVN: r256866

2018-01-18  Paolo Carlini  <paolo.carlini@oracle.com>

	* cp-tree.h: Fix comment typo (DECL_NON_TRIVIALLY_INITIALIZED_P
	vs DECL_NONTRIVIALLY_INITIALIZED_P).

From-SVN: r256865

gcc/testsuite/ChangeLog:

2018-01-18  Carl Love  <cel@us.ibm.com>
	* gcc.target/powerpc/builtins-6.h (foo): Add missing closing bracket
	to the function.

From-SVN: r256864

	PR sanitizer/81715
	PR testsuite/83882
	* function.h (gimplify_parameters): Add gimple_seq * argument.
	* function.c: Include gimple.h and options.h.
	(gimplify_parameters): Add cleanup argument, add CLOBBER stmts
	for the added local temporaries if needed.
	* gimplify.c (gimplify_body): Adjust gimplify_parameters caller,
	if there are any parameter cleanups, wrap whole body into a
	try/finally with the cleanups.

From-SVN: r256861

	* constexpr.c (potential_constant_expression_1): Check
	TARGET_EXPR_DIRECT_INIT_P.

From-SVN: r256860

	* configure.ac (AC_CHECK_HEADERS): Add linux/types.h.  Conditionally
	include linux/types.h when checking linux/random.h header.
	* config.h.in: Regenerate.
	* configure: Ditto.
	* src/c++11/random.cc: Conditionally include linux/types.h.

From-SVN: r256859

/cp
2018-01-18  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/81013
	* decl.c (xref_basetypes): Early return upon error about derived
	union.

/testsuite
2018-01-18  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/81013
	* g++.dg/inherit/union3.C: New.

From-SVN: r256856

This fixes test failures in gcc.target/aarch64/f16_mov_immediate_*.c
after fixing PR82964.  The check for a scalar floating point constant
didn't include 16-bit floating point modes, so use GET_MODE_CLASS
instead.

    gcc/
	PR target/82964
	* config/aarch64/aarch64.c (aarch64_legitimate_constant_p):
	Use GET_MODE_CLASS for scalar floating point.

From-SVN: r256854

re PR ipa/82256 (clones created by create_version_clone_with_body are not observable to insertion hooks)


	PR ipa/82256
	patch by PaX Team
	* cgraphclones.c (cgraph_node::create_version_clone_with_body):
	Fix call of call_cgraph_insertion_hooks.

From-SVN: r256853

From-SVN: r256852

2018-01-18  Christophe Lyon <christophe.lyon@linaro.org>

	* gcc.dg/rtl/arm/stl-cond.c: Enable on arm*.

From-SVN: r256851

	PR ipa/83619
	* g++.dg/torture/pr83619.C: New testcase.
	* cgraph.c (cgraph_edge::redirect_call_stmt_to_callee): Update edge
	frequencies.

From-SVN: r256850

2018-01-18  Christophe Lyon <christophe.lyon@linaro.org>

	* lib/target-supports.exp (check_effective_target_arm_arch_FUNC_ok):
	Add function body to force error messages in some configurations.

From-SVN: r256849

This test needs an armv4t Thumb1 target but doesn't add the right effective target checks.
This patch adds them so the test is skipped appropriately on Thumb2 hard-float tarets.

     * gcc.target/arm/pr70278.c: Add effective target checks for armv4t
     and arm_thumb1_ok.

From-SVN: r256848

This commit adds the -fmacro-prefix-map option that allows remapping of file
names in __FILE__, __BASE_FILE__, and __builtin_FILE(), similar to how
-fdebug-prefix-map allows to do the same for debug information.

Additionally, it adds -ffile-prefix-map which can be used to specify both
mappings with a single option (and, should we need to add more -f*-prefix-map
options in the future, those as well).

libcpp/ChangeLog:

2018-01-18  Boris Kolpackov  <boris@codesynthesis.com>

        PR other/70268
        * include/cpplib.h (cpp_callbacks::remap_filename): New callback.
        * libcpp/macro.c (_cpp_builtin_macro_text): Call remap_filename for
        __FILE__ and __BASE_FILE__.


gcc/ChangeLog:

2018-01-18  Boris Kolpackov  <boris@codesynthesis.com>

        PR other/70268
        * common.opt: (-ffile-prefix-map): New option.
        * opts.c (common_handle_option): Defer it.
        * opts-global.c (handle_common_deferred_options): Handle it.
        * debug.h (remap_debug_filename, add_debug_prefix_map): Move to...
        * file-prefix-map.h: New file.
        (remap_debug_filename, add_debug_prefix_map): ...here.
        (add_macro_prefix_map, add_file_prefix_map, remap_macro_filename): New.
        * final.c (debug_prefix_map, add_debug_prefix_map
        remap_debug_filename): Move to...
        * file-prefix-map.c: New file.
        (file_prefix_map, add_prefix_map, remap_filename) ...here and rename,
        generalize, get rid of alloca(), use strrchr() instead of strchr().
        (add_macro_prefix_map, add_debug_prefix_map, add_file_prefix_map):
        Implement in terms of add_prefix_map().
        (remap_macro_filename, remap_debug_filename): Implement in term of
        remap_filename().
        * Makefile.in (OBJS, PLUGIN_HEADERS): Add new files.
        * builtins.c (fold_builtin_FILE): Call remap_macro_filename().
        * dbxout.c: Include file-prefix-map.h.
        * varasm.c: Likewise.
        * vmsdbgout.c: Likewise.
        * xcoffout.c: Likewise.
        * dwarf2out.c: Likewise plus omit new options from DW_AT_producer.
        * doc/cppopts.texi (-fmacro-prefix-map): Document.
        * doc/invoke.texi (-ffile-prefix-map): Document.
	(-fdebug-prefix-map): Update description.


gcc/c-family/ChangeLog:

2018-01-18  Boris Kolpackov  <boris@codesynthesis.com>

        PR other/70268
        * c-family/c.opt (-fmacro-prefix-map): New option.
        * c-family/c-opts.c (c_common_handle_option): Handle it.
        * c-family/c-lex.c (init_c_lex): Set remap_filename cpp callback.
        * c-family/c-ppoutput.c (init_pp_output): Likewise.


gcc/testsuite/ChangeLog:

2018-01-18  Boris Kolpackov  <boris@codesynthesis.com>

        PR other/70268
        * c-c++-common/ffile-prefix-map.c: New test.
        * c-c++-common/fmacro-prefix-map.c: New test.
        * c-c++-common/cpp/ffile-prefix-map.c: New test.
        * c-c++-common/cpp/fmacro-prefix-map.c: New test.

From-SVN: r256847

2018-01-18  Martin Liska  <mliska@suse.cz>

	* config/i386/i386.c (indirect_thunk_name): Document that also
	lfence is emitted.
	(output_indirect_thunk): Document why both instructions
	(pause and lfence) are generated.
2018-01-18  Martin Liska  <mliska@suse.cz>

	* gcc.target/i386/indirect-thunk-3.c: Remove duplicate options.
	* gcc.target/i386/indirect-thunk-4.c: Likewise.
	* gcc.target/i386/indirect-thunk-6.c: Likewise.
	* gcc.target/i386/indirect-thunk-bnd-4.c: Likewise.
	* gcc.target/i386/ret-thunk-10.c: Likewise.
	* gcc.target/i386/ret-thunk-11.c: Likewise.
	* gcc.target/i386/ret-thunk-12.c: Likewise.
	* gcc.target/i386/ret-thunk-15.c: Likewise.
	* gcc.target/i386/ret-thunk-9.c: Likewise.

From-SVN: r256846