The PR85694 series removed the only cases in which a pattern recogniser
could attach patterns to more than one statement.  I think it would be
better to avoid adding any new instances of that, since it interferes
with the normal matching order.

This patch therefore switches the interface back to passing a single
statement instead of a vector.  It also gets rid of the clearing of
STMT_VINFO_RELATED_STMT on failure, since no recognisers use it now.

2018-07-03  Richard Sandiford  <richard.sandiford@arm.com>

gcc/
	* tree-vect-patterns.c (vect_recog_dot_prod_pattern):
	(vect_recog_sad_pattern, vect_recog_widen_op_pattern)
	(vect_recog_widen_mult_pattern, vect_recog_pow_pattern):
	(vect_recog_widen_sum_pattern, vect_recog_over_widening_pattern)
	(vect_recog_average_pattern, vect_recog_cast_forwprop_pattern)
	(vect_recog_widen_shift_pattern, vect_recog_rotate_pattern)
	(vect_recog_vector_vector_shift_pattern, vect_synth_mult_by_constant)
	(vect_recog_mult_pattern, vect_recog_divmod_pattern)
	(vect_recog_mixed_size_cond_pattern, vect_recog_bool_pattern)
	(vect_recog_mask_conversion_pattern): Replace vec<gimple *>
	parameter with a single stmt_vec_info.
	(vect_recog_func_ptr): Likewise.
	(vect_recog_gather_scatter_pattern): Likewise, folding in...
	(vect_try_gather_scatter_pattern): ...this.
	(vect_pattern_recog_1): Remove stmts_to_replace and just pass
	the stmt_vec_info of the statement to be matched.  Don't clear
	STMT_VINFO_RELATED_STMT.
	(vect_pattern_recog): Update call accordingly.

From-SVN: r262336

This patch adds detection of average instructions:

       a = (((wide) b + (wide) c) >> 1);
   --> a = (wide) .AVG_FLOOR (b, c);

       a = (((wide) b + (wide) c + 1) >> 1);
   --> a = (wide) .AVG_CEIL (b, c);

in cases where users of "a" need only the low half of the result,
making the cast to (wide) redundant.  The heavy lifting was done by
earlier patches.

This showed up another problem in vectorizable_call: if the call is a
pattern definition statement rather than the main pattern statement,
the type of vectorised call might be different from the type of the
original statement.

2018-07-03  Richard Sandiford  <richard.sandiford@arm.com>

gcc/
	PR tree-optimization/85694
	* doc/md.texi (avgM3_floor, uavgM3_floor, avgM3_ceil)
	(uavgM3_ceil): Document new optabs.
	* doc/sourcebuild.texi (vect_avg_qi): Document new target selector.
	* internal-fn.def (IFN_AVG_FLOOR, IFN_AVG_CEIL): New internal
	functions.
	* optabs.def (savg_floor_optab, uavg_floor_optab, savg_ceil_optab)
	(savg_ceil_optab): New optabs.
	* tree-vect-patterns.c (vect_recog_average_pattern): New function.
	(vect_vect_recog_func_ptrs): Add it.
	* tree-vect-stmts.c (vectorizable_call): Get the type of the zero
	constant directly from the associated lhs.

gcc/testsuite/
	PR tree-optimization/85694
	* lib/target-supports.exp (check_effective_target_vect_avg_qi): New
	proc.
	* gcc.dg/vect/vect-avg-1.c: New test.
	* gcc.dg/vect/vect-avg-2.c: Likewise.
	* gcc.dg/vect/vect-avg-3.c: Likewise.
	* gcc.dg/vect/vect-avg-4.c: Likewise.
	* gcc.dg/vect/vect-avg-5.c: Likewise.
	* gcc.dg/vect/vect-avg-6.c: Likewise.
	* gcc.dg/vect/vect-avg-7.c: Likewise.
	* gcc.dg/vect/vect-avg-8.c: Likewise.
	* gcc.dg/vect/vect-avg-9.c: Likewise.
	* gcc.dg/vect/vect-avg-10.c: Likewise.
	* gcc.dg/vect/vect-avg-11.c: Likewise.
	* gcc.dg/vect/vect-avg-12.c: Likewise.
	* gcc.dg/vect/vect-avg-13.c: Likewise.
	* gcc.dg/vect/vect-avg-14.c: Likewise.

From-SVN: r262335

The main over-widening patch can introduce quite a few extra casts,
and in many cases those casts simply "tap into" an intermediate
point in an existing extension.  E.g. if we have:

    unsigned char a;
    int ax = (int) a;

and a later operation using ax is shortened to "unsigned short",
we would need:

    unsigned short ax' = (unsigned short) a;

The a->ax extension requires one set of unpacks to get to unsigned
short and another set of unpacks to get to int.  The first set are
then duplicated for ax'.  If both ax and ax' are needed, the a->ax'
extension would end up counting twice during cost calculations.

This patch rewrites the original:

    int ax = (int) a;

into a pattern:

    unsigned short ax' = (unsigned short) a;
    int ax = (int) ax';

so that each extension only counts once.

2018-07-03  Richard Sandiford  <richard.sandiford@arm.com>

gcc/
	* tree-vect-patterns.c (vect_split_statement): New function.
	(vect_convert_input): Use it to try to split an existing cast.

gcc/testsuite/
	* gcc.dg/vect/vect-over-widen-5.c: Test that the extensions
	get split into two for use by the over-widening pattern.
	* gcc.dg/vect/vect-over-widen-6.c: Likewise.
	* gcc.dg/vect/vect-over-widen-7.c: Likewise.
	* gcc.dg/vect/vect-over-widen-8.c: Likewise.
	* gcc.dg/vect/vect-over-widen-9.c: Likewise.
	* gcc.dg/vect/vect-over-widen-10.c: Likewise.
	* gcc.dg/vect/vect-over-widen-11.c: Likewise.
	* gcc.dg/vect/vect-over-widen-12.c: Likewise.
	* gcc.dg/vect/vect-over-widen-13.c: Likewise.
	* gcc.dg/vect/vect-over-widen-14.c: Likewise.
	* gcc.dg/vect/vect-over-widen-15.c: Likewise.
	* gcc.dg/vect/vect-over-widen-16.c: Likewise.
	* gcc.dg/vect/vect-over-widen-22.c: New test.

From-SVN: r262334

This patch is the main part of PR85694.  The aim is to recognise at least:

  signed char *a, *b, *c;
  ...
  for (int i = 0; i < 2048; i++)
    c[i] = (a[i] + b[i]) >> 1;

as an over-widening pattern, since the addition and shift can be done
on shorts rather than ints.  However, it ended up being a lot more
general than that.

The current over-widening pattern detection is limited to a few simple
cases: logical ops with immediate second operands, and shifts by a
constant.  These cases are enough for common pixel-format conversion
and can be detected in a peephole way.

The loop above requires two generalisations of the current code: support
for addition as well as logical ops, and support for non-constant second
operands.  These are harder to detect in the same peephole way, so the
patch tries to take a more global approach.

The idea is to get information about the minimum operation width
in two ways:

(1) by using the range information attached to the SSA_NAMEs
    (effectively a forward walk, since the range info is
    context-independent).

(2) by back-propagating the number of output bits required by
    users of the result.

As explained in the comments, there's a balance to be struck between
narrowing an individual operation and fitting in with the surrounding
code.  The approach is pretty conservative: if we could narrow an
operation to N bits without changing its semantics, it's OK to do that if:

- no operations later in the chain require more than N bits; or

- all internally-defined inputs are extended from N bits or fewer,
  and at least one of them is single-use.

See the comments for the rationale.

I didn't bother adding STMT_VINFO_* wrappers for the new fields
since the code seemed more readable without.

2018-06-20  Richard Sandiford  <richard.sandiford@arm.com>

gcc/
	* poly-int.h (print_hex): New function.
	* dumpfile.h (dump_dec, dump_hex): Declare.
	* dumpfile.c (dump_dec, dump_hex): New poly_wide_int functions.
	* tree-vectorizer.h (_stmt_vec_info): Add min_output_precision,
	min_input_precision, operation_precision and operation_sign.
	* tree-vect-patterns.c (vect_get_range_info): New function.
	(vect_same_loop_or_bb_p, vect_single_imm_use)
	(vect_operation_fits_smaller_type): Delete.
	(vect_look_through_possible_promotion): Add an optional
	single_use_p parameter.
	(vect_recog_over_widening_pattern): Rewrite to use new
	stmt_vec_info infomration.  Handle one operation at a time.
	(vect_recog_cast_forwprop_pattern, vect_narrowable_type_p)
	(vect_truncatable_operation_p, vect_set_operation_type)
	(vect_set_min_input_precision): New functions.
	(vect_determine_min_output_precision_1): Likewise.
	(vect_determine_min_output_precision): Likewise.
	(vect_determine_precisions_from_range): Likewise.
	(vect_determine_precisions_from_users): Likewise.
	(vect_determine_stmt_precisions, vect_determine_precisions): Likewise.
	(vect_vect_recog_func_ptrs): Put over_widening first.
	Add cast_forwprop.
	(vect_pattern_recog): Call vect_determine_precisions.

gcc/testsuite/
	* gcc.dg/vect/vect-widen-mult-u8-u32.c: Check specifically for a
	widen_mult pattern.
	* gcc.dg/vect/vect-over-widen-1.c: Update the scan tests for new
	over-widening messages.
	* gcc.dg/vect/vect-over-widen-1-big-array.c: Likewise.
	* gcc.dg/vect/vect-over-widen-2.c: Likewise.
	* gcc.dg/vect/vect-over-widen-2-big-array.c: Likewise.
	* gcc.dg/vect/vect-over-widen-3.c: Likewise.
	* gcc.dg/vect/vect-over-widen-3-big-array.c: Likewise.
	* gcc.dg/vect/vect-over-widen-4.c: Likewise.
	* gcc.dg/vect/vect-over-widen-4-big-array.c: Likewise.
	* gcc.dg/vect/bb-slp-over-widen-1.c: New test.
	* gcc.dg/vect/bb-slp-over-widen-2.c: Likewise.
	* gcc.dg/vect/vect-over-widen-5.c: Likewise.
	* gcc.dg/vect/vect-over-widen-6.c: Likewise.
	* gcc.dg/vect/vect-over-widen-7.c: Likewise.
	* gcc.dg/vect/vect-over-widen-8.c: Likewise.
	* gcc.dg/vect/vect-over-widen-9.c: Likewise.
	* gcc.dg/vect/vect-over-widen-10.c: Likewise.
	* gcc.dg/vect/vect-over-widen-11.c: Likewise.
	* gcc.dg/vect/vect-over-widen-12.c: Likewise.
	* gcc.dg/vect/vect-over-widen-13.c: Likewise.
	* gcc.dg/vect/vect-over-widen-14.c: Likewise.
	* gcc.dg/vect/vect-over-widen-15.c: Likewise.
	* gcc.dg/vect/vect-over-widen-16.c: Likewise.
	* gcc.dg/vect/vect-over-widen-17.c: Likewise.
	* gcc.dg/vect/vect-over-widen-18.c: Likewise.
	* gcc.dg/vect/vect-over-widen-19.c: Likewise.
	* gcc.dg/vect/vect-over-widen-20.c: Likewise.
	* gcc.dg/vect/vect-over-widen-21.c: Likewise.

From-SVN: r262333

r262275 allowed pattern matching on pattern statements.  Testing for
SVE on more benchmarks showed a case where this interacted badly
with 14/n.

The new over-widening detection could narrow a COND_EXPR A to another
COND_EXPR B, which mixed_size_cond could then match.  This was working
as expected.  However, we left B (now dead) in the pattern definition
sequence with a non-null PATTERN_DEF_SEQ.  mask_conversion also
matched B, and unlike most recognisers, didn't clear PATTERN_DEF_SEQ
before adding statements to it.  This meant that the statements
created by mixed_size_cond appeared in two supposedy separate
sequences, causing much confusion.

This patch removes pattern statements that are replaced by further
pattern statements.  As a belt-and-braces fix, it also nullifies
PATTERN_DEF_SEQ on failure, in the same way Richard B. did recently
for RELATED_STMT.

I have patches to clean up the PATTERN_DEF_SEQ handling, but they
only apply after the complete PR85694 sequence, whereas this needs
to go in before 14/n.

2018-07-03  Richard Sandiford  <richard.sandiford@arm.com>

gcc/
	* tree-vect-patterns.c (vect_mark_pattern_stmts): Remove pattern
	statements that have been replaced by further pattern statements.
	(vect_pattern_recog_1): Clear STMT_VINFO_PATTERN_DEF_SEQ on failure.

gcc/testsuite/
	* gcc.dg/vect/vect-mixed-size-cond-1.c: New test.

From-SVN: r262332

2018-07-03  Richard Biener  <rguenther@suse.de>

	* tree-vect-stmts.c (vect_is_simple_use): Consolidate dumping,
	always set *dt.  Dump vectype in vectype overload.
	* dumpfile.h (dump_gimple_expr): New function.
	(dump_gimple_expr_loc): Likewise.
	* dumpfile.c (dump_gimple_expr): New function.
	(dump_gimple_expr_loc): Likewise.

From-SVN: r262330

h8300.md (movqi_h8300, [...]): Consolidate the H8/300, H8/300H and H8/S variants into a single pattern.

	* config/h8300/h8300.md (movqi_h8300, movqi_h8300hs): Consolidate
	the H8/300, H8/300H and H8/S variants into a single pattern.
	(movhi_h8300, movqi_h8300hs): Similarly.
	(pushqi_h8300hs, pushhi_h8300hs): Consolidate into a single pattern.
	(QHI mode iterator): New.

From-SVN: r262329

From-SVN: r262328

	gcc/
	* config/riscv/riscv.c (riscv_expand_epilogue): Use emit_jump_insn
	instead of emit_insn for interrupt returns.
	* config/riscv/riscv.md (riscv_met): Add (return) to rtl.
	(riscv_sret, riscv_uret): Likewise.

	gcc/testsuite/
	* gcc.target/riscv/interrupt-debug.c: New.

From-SVN: r262327

From-SVN: r262326

Extend __is_convertible_helper to also detect whether the conversion is
non-throwing, for std::is_nothrow_convertible in C++2a,

	* include/std/type_traits [__cplusplus > 201703]
	(__is_convertible_helper::__is_nothrow_type): Define new member.
	(__is_convertible_helper<_From, _To, false>::__test_aux1): Add
	noexcept.
	(__is_convertible_helper<_From, _To, false>::__test_nothrow)
	(__is_convertible_helper<_From, _To, false>::__is_nothrow_type): Add
	new members.
	(is_nothrow_convertible, is_nothrow_convertible_v): Define for C++2a.
	* testsuite/20_util/is_nothrow_convertible/value.cc: New.
	* testsuite/20_util/is_nothrow_convertible/requirements/
	explicit_instantiation.cc: New.
	* testsuite/20_util/is_nothrow_convertible/requirements/typedefs.cc:
	New.

From-SVN: r262322

parser.c (set_and_check_decl_spec_loc): Use rich_location::add_range in error message about __thread and thread_local...

/cp
2018-07-02  Paolo Carlini  <paolo.carlini@oracle.com>

	* parser.c (set_and_check_decl_spec_loc): Use rich_location::add_range
	in error message about __thread and thread_local at the same time.

/testsuite
2018-07-02  Paolo Carlini  <paolo.carlini@oracle.com>

	* g++.dg/diagnostic/thread-thread_local.C: New.

From-SVN: r262321

	* include/std/type_traits (type_identity, type_identity_t): Define
        for C++2a.
	* testsuite/20_util/type_identity/requirements/alias_decl.cc: New.
	* testsuite/20_util/type_identity/requirements/
	explicit_instantiation.cc:New.
	* testsuite/20_util/type_identity/requirements/typedefs.cc: New.

From-SVN: r262319

Avoid creation of unnecessary basic_string objects by using a simplified
string_view type and performing comparisons on that type instead. A
temporary basic_string object is still used when the sub_match's
iterators are not contiguous, in order to get an object that the
__string_view can reference.

	* include/bits/regex.h (sub_match::operator string_type): Call str().
	(sub_match::compare): Use _M_str() instead of str().
	(sub_match::_M_compare): New public function.
	(sub_match::__string_view): New helper type.
	(sub_match::_M_str): New overloaded functions to avoid creating a
	string_type object when not needed.
	(operator==, operator!=, operator<, operator>, operator<=, operator>=):
	Use sub_match::_M_compare instead of creating string_type objects.
	Fix Doxygen comments.
	* include/bits/regex_compiler.h (__has_contiguous_iter): Remove.
	(__is_contiguous_normal_iter): Rename to __is_contiguous_iter and
	simplify.
	(__enable_if_contiguous_iter, __disable_if_contiguous_iter): Use
	__enable_if_t.
	* include/std/type_traits (__enable_if_t): Define for C++11.
	* testsuite/28_regex/sub_match/compare.cc: New.
	* testsuite/util/testsuite_iterators.h (remove_cv): Add transformation
	trait.
	(input_iterator_wrapper): Use remove_cv for value_type argument of
	std::iterator base class.

From-SVN: r262318

This patch moves a workaround for locale differences from a
selftest in pretty-print.c to selftest.h/c to make it reusable; I need
this for a selftest in a followup patch.

gcc/ChangeLog:
	* pretty-print.c (selftest::test_pp_format): Move save and restore
	of quotes to class auto_fix_quotes, and add an instance.
	* selftest.c: Include "intl.h".
	(selftest::auto_fix_quotes::auto_fix_quotes): New ctor.
	(selftest::auto_fix_quotes::~auto_fix_quotes): New dtor.
	* selftest.h (selftest::auto_fix_quotes): New class.

From-SVN: r262317

	PR go/86331
    os: check return value as well as error from waitid
    
    https://gcc.gnu.org/PR86331 indicates that if a signal handler runs it
    is possible for syscall.Syscall6 to return a non-zero errno value even
    if no error occurs. That is a problem in general, but this fix will
    let us work around the general problem for the specific case of
    calling waitid.
    
    Reviewed-on: https://go-review.googlesource.com/121595

From-SVN: r262313

    * config/aarch64/aarch64-protos.h, config/aarch64/aarch64.c
    (aarch64_sve_prepare_conditional_op): Remove.
    * config/aarch64/aarch64-sve.md (cond_<SVE_INT_BINARY><SVE_I>):
    Allow aarch64_simd_reg_or_zero as select operand; remove
    the aarch64_sve_prepare_conditional_op call.
    (cond_<SVE_INT_BINARY_SD><SVE_SDI>): Likewise.
    (cond_<SVE_COND_FP_BINARY><SVE_F>): Likewise.
    (*cond_<SVE_INT_BINARY><SVE_I>_z): New pattern.
    (*cond_<SVE_INT_BINARY_SD><SVE_SDI>_z): New pattern.
    (*cond_<SVE_COND_FP_BINARY><SVE_F>_z): New pattern.
    (*cond_<SVE_INT_BINARY><SVE_I>_any): New pattern.
    (*cond_<SVE_INT_BINARY_SD><SVE_SDI>_any): New pattern.
    (*cond_<SVE_COND_FP_BINARY><SVE_F>_any): New pattern
    and a splitters to match all of the *_any patterns.
    * config/aarch64/predicates.md (aarch64_sve_any_binary_operator): New.

    * config/aarch64/iterators.md (SVE_INT_BINARY_REV): Remove.
    (SVE_COND_FP_BINARY_REV): Remove.
    (sve_int_op_rev, sve_fp_op_rev): New.
    * config/aarch64/aarch64-sve.md (*cond_<SVE_INT_BINARY><SVE_I>_0): New.
    (*cond_<SVE_INT_BINARY_SD><SVE_SDI>_0): New.
    (*cond_<SVE_COND_FP_BINARY><SVE_F>_0): New.
    (*cond_<SVE_INT_BINARY><SVE_I>_2): Rename, add movprfx alternative.
    (*cond_<SVE_INT_BINARY_SD><SVE_SDI>_2): Similarly.
    (*cond_<SVE_COND_FP_BINARY><SVE_F>_2): Similarly.
    (*cond_<SVE_INT_BINARY><SVE_I>_3): Similarly; use sve_int_op_rev.
    (*cond_<SVE_INT_BINARY_SD><SVE_SDI>_3): Similarly.
    (*cond_<SVE_COND_FP_BINARY><SVE_F>_3): Similarly; use sve_fp_op_rev.

    * config/aarch64/aarch64-sve.md (cond_<SVE_COND_FP_BINARY><SVE_F>):
    Remove match_dup 1 from the inner unspec.
    (*cond_<SVE_COND_FP_BINARY><SVE_F>): Likewise.

    * config/aarch64/aarch64.md (movprfx): New attr.
    (length): Default movprfx to 8.
    * config/aarch64/aarch64-sve.md (*mul<SVE_I>3): Add movprfx alt.
    (*madd<SVE_I>, *msub<SVE_I): Likewise.
    (*<su>mul<SVE_I>3_highpart): Likewise.
    (*<SVE_INT_BINARY_SD><SVE_SDI>3): Likewise.
    (*v<ASHIFT><SVE_I>3): Likewise.
    (*<su><MAXMIN><SVE_I>3): Likewise.
    (*<su><MAXMIN><SVE_F>3): Likewise.
    (*fma<SVE_F>4, *fnma<SVE_F>4): Likewise.
    (*fms<SVE_F>4, *fnms<SVE_F>4): Likewise.
    (*div<SVE_F>4): Likewise.

From-SVN: r262312

2018-07-02  Martin Liska  <mliska@suse.cz>

        PR testsuite/86366
	* gcc.dg/profile-dir-1.c: Fix scanned pattern.
	* gcc.dg/profile-dir-2.c: Likewise.
	* gcc.dg/profile-dir-3.c: Likewise.

From-SVN: r262311

2018-07-02  Christophe Lyon  <christophe.lyon@linaro.org>

	* gcc.target/arm/arm-soft-strd-even.c: Skip if -mfloat-abi is
	overriden.

From-SVN: r262309

Noticed by Christophe on arm-none-linux-gnueabihf.

2018-07-02  Richard Sandiford  <richard.sandiford@arm.com>

gcc/
	* tree-vect-patterns.c (vect_recog_widen_shift_pattern): Fix typo
	in dump string.

From-SVN: r262308

2018-07-02  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/86363
	* tree-ssa-sccvn.c (vn_reference_lookup_3): Check the
	memset argument refers to a non-variable address.

	* gcc.dg/torture/pr86363.c: New testcase.

From-SVN: r262307

extract_range_from_binary_expr_1 into separate functions.

From-SVN: r262306

	* tree-vrp.c (extract_range_from_unary_expr): Abstract ABS_EXPR
	code...
	(extract_range_from_abs_expr): ...here.

From-SVN: r262305

2018-07-02  Martin Liska  <mliska@suse.cz>

	* gcc.dg/completion-1.c: New test.
	* gcc.dg/completion-2.c: New test.
	* gcc.dg/completion-3.c: New test.

From-SVN: r262304

i386.c (ix86_finalize_stack_frame_flags): Do not overrule -fno-omit-frame-pointer when not optimizing.

	* config/i386/i386.c (ix86_finalize_stack_frame_flags): Do not overrule
	-fno-omit-frame-pointer when not optimizing.

From-SVN: r262302

re PR lto/86321 (ICE:  in splice_child_die, at dwarf2out.c:5693 for several Fortran tests with -g -flto)

2018-07-02  Richard Biener  <rguenther@suse.de>

	PR lto/86321
	* trans-types.c (gfc_get_array_type_bounds): Unshare TYPE_FIELDs
	for the distinct type copy.

From-SVN: r262301

2018-07-02  Paul Thomas  <pault@gcc.gnu.org>

	PR fortran/45305
	* expr.c : Add a prototype for scalarize_intrinsic_call.
	(gfc_simplify_expr): Use scalarize_intrinsic_call for elemental
	intrinsic function calls.
	(scalarize_intrinsic_call): Add 'init_flag' argument. Check if
	the expression or any of the actual argument expressions are
	NULL. Before calling gfc_check_init_expr, check 'init_flag'.
	Only simplify the scalarized expressions if there are no errors
	on the stack.
	(gfc_check_init_expr): Set 'init_flag' true in the call to
	scalarize_intrinsic_call.

2018-07-02  Paul Thomas  <pault@gcc.gnu.org>

	PR fortran/45305
	* gfortran.dg/scalarize_parameter_array_2.f90: New test.

From-SVN: r262300

2018-07-02  Paul Thomas  <pault@gcc.gnu.org>

	PR fortran/45305
	* expr.c : Add a prototype for scalarize_intrinsic_call.
	(gfc_simplify_expr): Use scalarize_intrinsic_call for elemental
	intrinsic function calls.
	(scalarize_intrinsic_call): Add 'init_flag' argument. Check if
	the expression or any of the actual argument expressions are
	NULL. Before calling gfc_check_init_expr, check 'init_flag'.
	Only simplify the scalarized expressions if there are no errors
	on the stack.
	(gfc_check_init_expr): Set 'init_flag' true in the call to
	scalarize_intrinsic_call.

2018-07-02  Paul Thomas  <pault@gcc.gnu.org>

	PR fortran/45305
	* gfortran.dg/scalarize_parameter_array_2.f90: New test.

From-SVN: r262299

2018-07-02  Martin Liska  <mliska@suse.cz>

        PR ipa/86279
	* ipa-pure-const.c (malloc_candidate_p): Revert usage of ::get.
	(propagate_nothrow): Likewise.
2018-07-02  Martin Liska  <mliska@suse.cz>

        PR ipa/86279
	* gcc.dg/ipa/pr86279.c: New test.

From-SVN: r262298

2018-07-02  Martin Liska  <mliska@suse.cz>

        PR ipa/86323
	* ipa-inline.c (early_inliner): Revert wrongly added ::get call.
2018-07-02  Martin Liska  <mliska@suse.cz>

        PR ipa/86323
	* g++.dg/ipa/pr86323.C: New test.

From-SVN: r262297

2018-07-02  Martin Liska  <mliska@suse.cz>

	* gnatvsn.ads: Bump Library_Version to 9.

From-SVN: r262296

gcc/ChangeLog:
	* dumpfile.c (dump_generic_expr_loc): Undo removal of this
	function in r262149, changing "loc" param from source_location to
	const dump_location_t &.
	* dumpfile.h (dump_generic_expr_loc): Undo removal of this
	declaration, as above.

From-SVN: r262295

From-SVN: r262294

2018-07-01  Tom de Vries  <tdevries@suse.de>

	revert:
	2018-07-01  Tom de Vries  <tdevries@suse.de>

	* gcc.dg/guality/prevent-optimization.h (VOLATILE): Define.
	* gcc.dg/guality/vla-1.c (f1): Mark local vla a as VOLATILE.

From-SVN: r262290

        compatible output.

	* common/config/pdp11/pdp11-common.c (pdp11_handle_option): Handle
	-munit-asm, -mgnu-asm, -mdec-asm.
	* config/pdp11/pdp11-protos.h (pdp11_gen_int_label): New.
	(pdp11_output_labelref): New.
	(pdp11_output_def): New.
	(pdp11_output_addr_vec_elt): New.
	* config/pdp11/pdp11.c: Use tab between opcode and operands.  Use
	%# and %@ format codes.
	(pdp11_option_override): New.
	(TARGET_ASM_FILE_START_FILE_DIRECTIVE): Define.
	(pdp11_output_ident): New.
	(pdp11_asm_named_section): New.
	(pdp11_asm_init_sections): New.
	(pdp11_file_start): New.
	(pdp11_file_end): New.
	(output_ascii): Use .ascii/.asciz for -mdec-asm.
	(pdp11_asm_print_operand): Update %# and %$ for -mdec-asm.  Add
	%o, like %c but octal.
	(pdp11_option_override): New.
	* config/pdp11/pdp11.h (TEXT_SECTION_ASM_OP): Update for
	-mdec-asm.
	(DATA_SECTION_ASM_OP): Ditto.
	(READONLY_DATA_SECTION_ASM_OP): New.
	(IS_ASM_LOGICAL_LINE_SEPARATOR): New.
	(ASM_GENERATE_INTERNAL_LABEL): Use new function.
	(ASM_OUTPUT_LABELREF): Ditto.
	(ASM_OUTPUT_DEF): Ditto.
	(ASM_OUTPUT_EXTERNAL): New.
	(ASM_OUTPUT_SOURCE_FILENAME): New.
	(ASM_OUTPUT_ADDR_VEC_ELT): Use new function.
	(ASM_OUTPUT_SKIP): Update for -mdec-asm.
	* config/pdp11/pdp11.md: Use tab between opcode and operands.  Use
	%# and %@ format codes.
	* config/pdp11/pdp11.opt (mgnu-asm): New.
	(mdec-asm): Conflicts with -mgnu-asm and -munix-asm.
	(munix-asm): Conflicts with -mdec-asm and -mgnu-asm.
	* doc/invoke.txt (PDP-11 Options): Add -mgnu-asm.

From-SVN: r262289

2018-07-01  Tom de Vries  <tdevries@suse.de>

	* lib/gcc-gdb-test.exp (gdb-test): Handle '@' prefix in line number
	argument.
	* gcc.dg/guality/const-volatile.c: Replace gdb-test line nrs 50 and 58
	with @main.

From-SVN: r262288

2018-07-01  Tom de Vries  <tdevries@suse.de>

	* gcc.dg/guality/prevent-optimization.h (VOLATILE): Define.
	* gcc.dg/guality/vla-1.c (f1): Mark local vla a as VOLATILE.

From-SVN: r262287

2018-07-01  Tom de Vries  <tdevries@suse.de>

	* lib/gcc-dg.exp (get-absolute-line): Handle '.'.
	* gcc.dg/guality/vla-1.c: Use relative line numbers.

From-SVN: r262286

2018-07-01  Tom de Vries  <tdevries@suse.de>

	* gcc.dg-selftests/dg-final.exp (verify_call_1): Factor out of ...
	(verify_call): ... here.  Move to toplevel.
	(verify_call_np, dg_final_directive_check_utils): New proc.
	(toplevel): Call dg_final_directive_check_utils.
	* lib/gcc-dg.exp (get-absolute-line): Fix typo in variable reference.

From-SVN: r262284

From-SVN: r262283