2018-09-17  Paul Thomas  <pault@gcc.gnu.org>

	PR fortran/64120
	* trans-decl.c (gfc_get_symbol_decl): Flag allocatable, scalar
	characters with a variable length expression for deferred init.
	(gfc_trans_deferred_vars): Perform the assignment for these
	symbols by calling gfc_conv_string_length.

2018-09-17  Paul Thomas  <pault@gcc.gnu.org>

	PR fortran/64120
	* gfortran.dg/allocatable_scalar_14.f90 : New test.

From-SVN: r264365

re PR tree-optimization/87301 (ICE: verify_gimple failed (error: statement marked for throw, but doesn't))

2018-09-17  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/87301
	* tree-ssa-sccvn.c (eliminate_dom_walker::eliminate_cleanup): Properly
	clean EH info from leftover copy assignments.

	* gcc.dg/torture/pr87301.c: New testcase.

From-SVN: r264364

2018-09-17  Martin Liska  <mliska@suse.cz>

	PR gcov-profile/85871
	* gcov.c (output_intermediate_file): Fix out of bounds
	access.

From-SVN: r264363

2018-09-17  Vineet Gupta  <vgupta@synopsys.com>

	* config/arc/arc.c: Object attributes for core4 not reflected
	correctly.
	* config/arc/arc.h: Don't restrict DBNZ to core3 (core4 includes
	core3).

From-SVN: r264362

With no trailing space in LINK_EH_SPEC linker spec gets generated as:
------------------------>8---------------------
%{!r:--build-id} --eh-frame-hdr%{h*} ...
------------------------>8---------------------

or even worse if hash style is added:
------------------------>8---------------------
%{!r:--build-id} --eh-frame-hdr--hash-style=sysv %{h*} ...
------------------------>8---------------------

Now if that spec is really used by LD then it fails inevitably
saying that it doesn't know option "--eh-frame-hdr--hash-style=sysv".

2018-09-17  Alexey Brodkin  <abrodkin@synopsys.com>

	* config/arc/linux.h (LINK_EH_SPEC): Add missing space.

From-SVN: r264361

2018-09-17  Martin Liska  <mliska@suse.cz>

	* doc/gcov.texi: Document new option --use-hotness-colors.
	* gcov.c (struct source_info): Declare new field.
	(source_info::source_info): Set default for maximum_count.
	(print_usage): Add new -q option.
	(process_args): Process it.
	(accumulate_line_info): Save src->maximum_count.
	(output_line_beginning): Make color line number if
	flag_use_hotness_colors is set.
	(output_line_details): Pass default argument value.
	(output_lines): Pass src->maximum_count.

From-SVN: r264360

2018-09-17  Martin Liska  <mliska@suse.cz>

	* common/config/i386/i386-common.c (ix86_get_valid_option_values):
	Use processor_names table.
	* config/i386/i386.c (ix86_default_align): Use
	processor_cost_table for alignment values.
	(ix86_option_override_internal): Use processor_names.
	(ix86_function_specific_print): Likewise.
	* config/i386/i386.h (struct processor_costs):
	Add alignment values.
	(struct ptt): Remove and replace with const char *.
	* config/i386/x86-tune-costs.h (struct processor_costs):
	Declare default alignments for all costs.

From-SVN: r264359

2018-09-17  Paul Thomas  <pault@gcc.gnu.org>

	PR fortran/85954
	* resolve.c (resolve_assoc_var): If the target expression is a
	deferred charlen dummy and the associate name shares the
	charlen, generate a new one. Make sure that new charlens are in
	the namespace list so that they get cleaned up.
	* trans-array.c (gfc_is_reallocatable_lhs): Associate names are
	not reallocatable.
	* trans-decl.c (gfc_get_symbol_decl): Put deferred character
	length dummy and result arrays on the deferred initialization
	list so that the variable length arrays can be correctly dealt
	with.
	* trans-expr.c (gfc_conv_string_length): Return if 'expr' is
	NULL rather than ICEing..

2018-09-17  Paul Thomas  <pault@gcc.gnu.org>

	PR fortran/85954
	* gfortran.dg/deferred_character_21.f90 : New test.

From-SVN: r264358

tree-vrp.c (extract_range_from_unary_expr): Do not special case symbolics or VR_VARYING ranges for ABS_EXPR.

	* tree-vrp.c (extract_range_from_unary_expr): Do not special case
	symbolics or VR_VARYING ranges for ABS_EXPR.
	* wide-int-range.cc (wide_int_range_abs): Return positive numbers
	when range will wrap.

From-SVN: r264356

From-SVN: r264355

2018-09-16  Janus Weil  <janus@gcc.gnu.org>

	PR fortran/86484
	PR fortran/84543
	* match.c (gfc_match_assignment): For a polymorphic assignment,
	make sure that the vtab for the rhs type is generated.

2018-09-16  Janus Weil  <janus@gcc.gnu.org>

	PR fortran/86484
	PR fortran/84543
	* gfortran.dg/class_assign_2.f90: New test case.
	* gfortran.dg/class_assign_3.f90: New test case.

From-SVN: r264350

2018-09-16  Thomas Koenig  <tkoenig@gcc.gnu.org>

	PR fortran/37802
	* frontend-passes.c (B_ERROR): New macro for matmul bounds
	checking error messages.
	(C_ERROR): Likewise.
	(inline_matmul_assign): Reorganize bounds checking, use B_ERROR
	and C_ERROR macros.

2018-09-16  Thomas Koenig  <tkoenig@gcc.gnu.org>

	PR fortran/37802
	* gfortran.dg/matmul_bounds_13.f90: New test case.
	* gfortran.dg/inline_matmul_15.f90:  Adjust test for runtime
	error.
	* gfortran.dg/matmul_5.f90: Likewise.
	* gfortran.dg/matmul_bounds_10.f90: Likewise.
	* gfortran.dg/matmul_bounds_11.f90: Likewise.
	* gfortran.dg/matmul_bounds_2.f90: Likewise.
	* gfortran.dg/matmul_bounds_4.f90: Likewise.
	* gfortran.dg/matmul_bounds_5.f90: Likewise.

2018-09-16  Thomas Koenig  <tkoenig@gcc.gnu.org>

	PR fortran/37802
	* m4/matmul_internal.m4: Adjust error messages.
        * 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.
        * generated/matmulavx128_c10.c: Regenerated.
        * generated/matmulavx128_c16.c: Regenerated.
        * generated/matmulavx128_c4.c: Regenerated.
        * generated/matmulavx128_c8.c: Regenerated.
        * generated/matmulavx128_i1.c: Regenerated.
        * generated/matmulavx128_i16.c: Regenerated.
        * generated/matmulavx128_i2.c: Regenerated.
        * generated/matmulavx128_i4.c: Regenerated.
        * generated/matmulavx128_i8.c: Regenerated.
        * generated/matmulavx128_r10.c: Regenerated.
        * generated/matmulavx128_r16.c: Regenerated.
        * generated/matmulavx128_r4.c: Regenerated.
        * generated/matmulavx128_r8.c: Regenerated.

From-SVN: r264349

From-SVN: r264346

	PR middle-end/86864
	* cfgexpand.c (expand_gimple_basic_block): Be prepared for a BARRIER
	before and after a JUMP_TABLE_DATA.

From-SVN: r264342

From-SVN: r264341

	PR middle-end/87188
	* dojump.c (do_compare_and_jump): Canonicalize function pointers
	when one operand is a function pointer.  Use POINTER_TYPE_P and
	FUNC_OR_METHOD_TYPE_P.
	* expr.c (do_store_flag): Use POINTER_TYPE_P and FUNC_OR_METHOD_TYPE_P.
	* fold-const.c (build_range_check): Likewise.
	* match.pd (simple_comparison): Likewise.

From-SVN: r264336

This patch tunes class best_match's cutoff for rejecting meaningless
spelling suggestions.

Previously, we allowed an edit distance of up to half of the length of the
longer of the goal string and closest candidate strings, rounded down.

With this patch, we now allow only up to a third - with some tuning of
rounding (and for very short strings), to ensure that:
(a) everything that worked before still works (with the removal of a
couple of cases that shouldn't), and that
(b) the new threshold is always at least as conservative as the old
threshold and thus shouldn't offer new nonsensical suggestions (with
the possible exception of cases where transposition has helped; see
r261521 aka Damerau-Levenshtein; PR other/69968).

In particular, all of the bogus suggestions from PR c/82967 are now
no longer offered.

gcc/ChangeLog:
	PR c/82967
	* spellcheck.c (get_edit_distance_cutoff): New function.
	(selftest::test_edit_distance_unit_test_oneway): Rename to...
	(selftest::test_get_edit_distance_one_way): ...this.
	(selftest::test_get_edit_distance_unit): Rename to...
	(selftest::test_get_edit_distance_both_ways): ...this.
	(selftest::test_edit_distances): Move tests to this new function,
	and test some more pairs of strings.  Update for above renaming.
	(selftest::get_old_cutoff): New function.
	(selftest::test_get_edit_distance_cutoff): New function.
	(selftest::assert_suggested_for): New function.
	(ASSERT_SUGGESTED_FOR): New macro.
	(selftest::assert_not_suggested_for): New function.
	(ASSERT_NOT_SUGGESTED_FOR): New macro.
	(selftest::test_suggestions): New function.
	(selftest::spellcheck_c_tests): Move test_get_edit_distance_unit
	tests to selftest::test_edit_distances and call it.  Add calls to
	selftest::test_get_edit_distance_cutoff and
	selftest::test_suggestions.
	* spellcheck.h (get_edit_distance_cutoff): New function declaration.
	(best_match::consider): Replace hard-coded cutoff calculation with
	a call to...
	(best_match::get_cutoff): New declaration.
	(best_match::get_best_meaningful_candidate): Likewise.

gcc/testsuite/ChangeLog:
	PR c/82967
	* c-c++-common/attributes-1.c: Remove bogus suggestion from
	dg-prune-output.
	* gcc.dg/diagnostic-token-ranges.c (undeclared_identifier): Remove
	bogus suggestion.
	* gcc.dg/spellcheck-identifiers-4.c: New test.

From-SVN: r264335

2018-09-14  Bernd Edlinger  <bernd.edlinger@hotmail.de>

        * builtins.c (fold_builtin_strlen): Remove TODO comment.

testsuite:
2018-09-14  Bernd Edlinger  <bernd.edlinger@hotmail.de>

        * gcc.dg/warn-strlen-no-nul.c: Add some missing test cases.

From-SVN: r264334

From-SVN: r264333

        revert:
        2018-07-30  Bernd Edlinger  <bernd.edlinger@hotmail.de>

        * tree-ssa-forwprop.c (simplify_builtin_call): Don't create a not NUL
        terminated string literal.

From-SVN: r264332

    
    Bring in https://golang.org/cl/135297 from the gc repository to fix a
    GCC bug report.
    
    Original CL description:
    
        The GNU assembler for ARM treats @ as a comment character, so section
        types must be written using % instead.
    
        Fixes https://gcc.gnu.org/PR87260.
    
    Reviewed-on: https://go-review.googlesource.com/135360

From-SVN: r264330

	* builtins.c (unterminated_array): Handle ARRAY_REF.
	(expand_builtin_stpcpy_1): Detect unterminated char arrays.
	* builtins.h (unterminated_array): Declare extern.
	* gimple-fold.c (gimple_fold_builtin_stpcpy): Detect unterminated
	  arrays.
	(gimple_fold_builtin_sprintf): Propagate NO_WARNING to transformed
	calls.

	* gcc.dg/warn-stpcpy-no-nul.c: New test.

From-SVN: r264328

	* builtins.c (unterminated_array): New.
	(expand_builtin_strcpy): Adjust.
	(expand_builtin_strcpy_args): Detect unterminated arrays.
	* gimple-fold.c (get_maxval_strlen): Add argument.  Detect
	unterminated arrays.
	* gimple-fold.h (get_maxval_strlen): Add argument.
	(gimple_fold_builtin_strcpy): Detec unterminated arrays.

	* gimple-fold.c (get_range_strlen): Add argument.
	(get_maxval_strlen): Adjust.
	* gimple-fold.h (get_range_strlen): Add argument.

	* gcc.dg/warn-strcpy-no-nul.c: New test.

Co-Authored-By: Jeff Law <law@redhat.com>

From-SVN: r264327

From-SVN: r264326

    
    This CL corrects the handling of a deferred delete in a loop, to not
    use a temporary whose value will, at deferred execution time, wind up
    being the last value in the loop.
    
    The test for this is TestDeferDeleteSlow in the 1.11 runtime package.
    
    Reviewed-on: https://go-review.googlesource.com/135358

From-SVN: r264325

gcc/testsuite/ChangeLog:
	* g++.dg/pr61941.C: New test.

From-SVN: r264324

This test started failing because some of the functions in the combine dump that it scans uses a different pattern to match the same instruction: insv_regsi rather than aarch64_bfi.
The code generation is still the same.
The patch changes the scan to look for the actual instruction we want in the assembly.

This fixes the test.
Committing to trunk as obvious.

     * gcc.target/aarch64/combine_bfi_1.c: Scan for bfi instruction
     rather than pattern name in combine dump.

From-SVN: r264323

	* reg-stack.c: Include regs.h.
	(replace_reg): Assert that mode is MODE_FLOAT or MODE_COMPLEX_FLOAT.
	(emit_pop_insn): Default pop insn mode to the reg_raw_mode of
	FIRST_STACK_REG, not DFmode.
	(emit_swap_insn): Default swap insn mode to the reg_raw_mode of
	FIRST_STACK_REG, not XFmode.  Explicitly construct swap RTX.
	(change stack): Default register mode to the reg_raw_mode of
	FIRST_STACK_REG, not DFmode.
	* config/i386/i386.md (*swap<mode>): Remove insn pattern.
	(*swapxf): Rename from swapxf.

From-SVN: r264319

gcc/ChangeLog:

2018-09-14  Carl Love  <cel@us.ibm.com>

	* config/rs6000/emmintrin.h: Add _MM_SHUFFLE2.
	* config/rs6000/xmmintrin.h: Add _MM_SHUFFLE.

From-SVN: r264317

This is another case where we ICE because Y does not allow reg+reg, we
need Z for that.


	PR target/87224
	* config/rs6000/rs6000.md (*mov<mode>_hardfloat64): Add Z to the Y
	alternatives.

From-SVN: r264316

gcc/
2018-07-31  Sam Tebbs  <sam.tebbs@arm.com>

	PR target/85628
	* config/aarch64/aarch64.md (*aarch64_bfxilsi_uxtw): Define.

gcc/testsuite
2018-07-31  Sam Tebbs  <sam.tebbs@arm.com>

	PR target/85628
	* gcc.target/aarch64/combine_bfxil.c (combine_zero_extended_int, foo6):
	New functions.

From-SVN: r264315

	* hash-table.c (hash_table_usage): Change from variable to function.
	* hash-table.h: Adjust.
	* Makefile.in: Add missing dependencies on hash-table.h.

From-SVN: r264313

[tree-ssa-mathopts] PR tree-optimization/87259: Call execute_cse_reciprocals_1 before trying optimize_recip_sqrt

	PR tree-optimization/87259
	PR lto/87283
	(pass_cse_reciprocals::execute): Run optimize_recip_sqrt after
	execute_cse_reciprocals_1 has tried transforming.

	PR tree-optimization/87259
	* gcc.dg/pr87259.c: New test.

From-SVN: r264312

	* tree-vrp.c (extract_range_from_binary_expr_1): Normalize
	VR_VARYING for PLUS/MINUS_EXPR.

From-SVN: r264307

S/390: Improve s390-passes.def formatting

The result looks nicer in the generated pass-instances.def.

gcc/ChangeLog:

2018-09-14  Ilya Leoshkevich  <iii@linux.ibm.com>

	* config/s390/s390-passes.def (INSERT_PASS_BEFORE): Improve
	formatting.

From-SVN: r264306

I've been tracking down a bug in a Fortran program on a newlib target and it boils down to fallback_access doing something bad.
The unconditional calls to close cause havoc when open doesn't get called due to the short-circuiting in the if-statement above
because the fd is uninitialised. In my environment GCC ends up calling close on file descriptor 0, thus trying to close stdin.

This patch tightens up the calling so that close is called only when the corresponding open call succeeded.
With this my runtime failure disappears.

Bootstrapped and tested on aarch64-none-linux-gnu.
Though that doesn't exercise this call I hope it's an obviously correct change. 

	* io/unix.c (fallback_access): Avoid calling close on
	uninitialized file descriptor.

From-SVN: r264305

2018-09-14  Richard Biener  <rguenther@suse.de>

	PR middle-end/63155
	* tree-ssa-coalesce.c (ssa_conflicts_merge): Remove conflict
	bits for the merged partition.

From-SVN: r264304

	* builtins.h (c_srlen): Add argument.
	* builtins.c (warn_string_no_nul): New function.
	(c_strlen): Add argument and use it.  Update recursive calls.
	Pass DECL argument to string_constant to get info on non
	terminated strings.  Update *NONSTR as needed.
	(fold_builtin_strlen): Add argument to calls to c_strlen.
	Warn for unterminated arrays.
	(warn_string_no_null): Add prototype.
	* expr.c (string_constant): Update arguments.  Update recursive
	calls appropriately.  Detect missing NUL terminator and outermost
	declaration its missing in.
	Improve checks for arrays with nonzero lower bound or elements
	that are not a single byte.  Simplify offset computation.
	Simplify checks for non-NUL terminated strings.
	* gimple-fold.c (get_range_strlen): Add argument to c_strlen call.
	* gimple-ssa-sprintf.c (get_string_length): Remove unnecessary code.

	* gcc.dg/warn-strlen-no-nul.c: New test.

Co-Authored-By: Bernd Edlinger <bernd.edlinger@hotmail.de>
Co-Authored-By: Jeff Law <law@redhat.com>

From-SVN: r264302

	* builtins.c (c_strlen): Handle not zero terminated STRING_CSTs
	correctly.
	* fold-const.c (c_getstr): Fix function comment.  Remove unused third
	argument.  Fix range checks.
	* fold-const.h (c_getstr): Adjust protoype.
	* gimple-fold.c (gimple_fold_builtin_memory_op): Avoid folding when
	string is constant but contains no NUL byte.

From-SVN: r264301

	* expr.c (string_constant): Adjust function comment.
	Remove bogus check for zero termination.

From-SVN: r264300