S/390: Split MVC instruction for better forwarding

Certain lengths used in an MVC instruction might disable operand
forwarding.  Split MVCs into up to 2 forwardable ones if possible.

gcc/ChangeLog:

2017-12-01  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>

* config/s390/predicates.md (plus16_Q_operand): New predicate.
* config/s390/s390.md: Disable MVC merging peephole if it would
disable operand forwarding.
(new peephole2): Split MVCs if it would turn them into up to 2
forwardable MVCs.

From-SVN: r255319

Add comment to fix -Wfallthrough warning

* include/bits/locale_facets_nonio.tcc (money_get::_M_extract): Add
fallthrough comment.

From-SVN: r255318

Fix -Wempty-body warnings for debug assertions

* include/bits/node_handle.h (_Node_handle_common::operator=)
(_Node_handle_common::_M_swap): Add braces around debug assertions.

From-SVN: r255317

Use const char* to fix -Wwrite-strings warning

* include/ext/ropeimpl.h (rope::_S_dump): Use const char*.

From-SVN: r255316

Add [[noreturn]] attributes to fix warning

* libsupc++/nested_exception.h (__throw_with_nested_impl): Add
noreturn attribute.

From-SVN: r255315

Remove stray semi-colons at namespace scope

* include/bits/regex_executor.tcc (_Executor::_M_rep_once_more):
Remove semi-colon after function body.
* include/bits/uniform_int_dist.h (_Power_of_2): Likewise.

From-SVN: r255314

Use value-init syntax in std::__detail::__airy

* include/tr1/modified_bessel_func.tcc (__airy): Use value-init not
list-init.

From-SVN: r255313

Add noexcept to std::integral_constant members

* include/std/type_traits (integral_constant): Make member functions
noexcept (LWG 2346).
* include/std/utility (integer_sequence): Likewise.

From-SVN: r255312

re PR fortran/82605 ([PDT] ICE in insert_parameter_exprs, at fortran/decl.c:3154)

2017-12-01  Paul Thomas  <pault@gcc.gnu.org>

PR fortran/82605
* resolve.c (get_pdt_constructor): Initialize 'cons' to NULL.
(resolve_pdt): Correct typo in prior comment. Emit an error if
any parameters are deferred and the object is neither pointer
nor allocatable.

PR fortran/82606
* decl.c (gfc_get_pdt_instance): Continue if the parameter sym
is not present or has no name. Select the parameter by name
of component, rather than component order. Remove all the other
manipulations of 'tail' when building the pdt instance.
(gfc_match_formal_arglist): Emit and error if a star is picked
up in a PDT decl parameter list.

PR fortran/82622
* trans-array.c (set_loop_bounds): If a GFC_SS_COMPONENT has an
info->end, use it rather than falling through to
gcc_unreachable.
(structure_alloc_comps): Check that param->name is non-null
before comparing with the component name.
* trans-decl.c (gfc_get_symbol_decl): Do not use the static
initializer for PDT symbols.
(gfc_init_default_dt): Do nothing for PDT symbols.
* trans-io.c (transfer_array_component): Parameterized array
components use the descriptor ubound since the shape is not
available.

PR fortran/82719
PR fortran/82720
* trans-expr.c (gfc_conv_component_ref): Do not use the charlen
backend_decl of pdt strings. Use the hidden component instead.
* trans-io.c (transfer_expr): Do not do IO on "hidden" string
lengths. Use the hidden string length for pdt string transfers
by adding it to the se structure. When finished nullify the
se string length.

PR fortran/82866
* decl.c (gfc_match_formal_arglist): If a name is not found or
star is found, while reading a type parameter list, emit an
immediate error.
(gfc_match_derived_decl): On reading a PDT parameter list, on
failure to match call gfc_error_recovery.

PR fortran/82978
* decl.c (build_struct): Character kind defaults to 1, so use
kind_expr whatever is the set value.
(gfc_get_pdt_instance): Ditto.
* trans-array.c (structure_alloc_comps): Copy the expression
for the PDT string length before parameter substitution. Use
this expression for evaluation and free it after use.

2017-12-01  Paul Thomas  <pault@gcc.gnu.org>

PR fortran/82605
* gfortran.dg/pdt_4.f03 : Incorporate the new error.

PR fortran/82606
* gfortran.dg/pdt_19.f03 : New test.
* gfortran.dg/pdt_21.f03 : New test.

PR fortran/82622
* gfortran.dg/pdt_20.f03 : New test.
* gfortran.dg/pdt_22.f03 : New test.

PR fortran/82719
PR fortran/82720
* gfortran.dg/pdt_23.f03 : New test.

PR fortran/82866
* gfortran.dg/pdt_24.f03 : New test.

PR fortran/82978
* gfortran.dg/pdt_10.f03 : Correct for error in coding the for
kind 4 component and change the kind check appropriately.
* gfortran.dg/pdt_25.f03 : New test.

From-SVN: r255311

Fix bug in an OpenACC async test case

libgomp/
* testsuite/libgomp.oacc-c-c++-common/data-2-lib.c: Add missing
call to acc_wait (1).

From-SVN: r255308

re PR tree-optimization/83232 (fma3d spec2000 regression on zen with -Ofast (generic tuning) after r255268 by missed SLP oppurtunity)

2017-12-01  Richard Biener  <rguenther@suse.de>

PR tree-optimization/83232
* tree-vect-data-refs.c (vect_analyze_data_ref_accesses): Fix
detection of same access. Instead of breaking the group here
do not consider the duplicate.  Add comment explaining real fix.

* gfortran.dg/vect/pr83232.f90: New testcase.

From-SVN: r255307

Fix "central flowgraph" typo in machine desc docs

* doc/md.texi (Insn Splitting): Fix "central flowgraph" typo.

From-SVN: r255305

RTEMS/Ada: Fix some POSIX types

gcc/ada
* libgnarl/s-osinte__rtems.ads (pthread_cond_t): Use correct size and
alignment.
(pthread_mutex_t): Likewise.
(pthread_rwlock_t): Likewise.

From-SVN: r255302

Fix wrong code by arm_final_prescan with fp16 move instructions

ChangeLog entry are as follow:

*** gcc/ChangeLog ***

2017-12-01  Sudakshina Das  <sudi.das@arm.com>

* config/arm/vfp.md (*movhf_vfp_fp16): Add conds attribute.

*** gcc/testsuite/ChangeLog ***

2017-12-01  Sudakshina Das  <sudi.das@arm.com>

* gcc.target/arm/armv8_2-fp16-move-2.c: New test.

From-SVN: r255301

function.h (struct function): Remove cilk_frame_decl, is_cilk_function and calls_cilk_spawn fields.

* function.h (struct function): Remove cilk_frame_decl,
is_cilk_function and calls_cilk_spawn fields.
* tree-inline.h (struct copy_body_data): Remove remap_var_for_cilk
field.
* omp-simd-clone.c (simd_clone_clauses_extract): Don't clear
cilk_elemental field.
* cgraph.h (struct cgraph_simd_clone): Remove cilk_elemental field.
* target.def: Adjust comment.
* config/i386/i386.c (ix86_simd_clone_compute_vecsize_and_simdlen):
Don't test cilk_elemental.
c-family/
* c-attribs.c (c_common_attribute_table): Remove "cilk simd function"
attribute.
(handle_simd_attribute): Don't check for "cilk simd function"
attribute.  Reindent, formatting changes.
cp/
* parser.c (cp_parser_new): Don't clear cilk_simd_fn_info.
(parsing_nsdmi): Adjust comment.
(cp_parser_omp_for_loop_init): Likewise.
* parser.h (struct cp_omp_declare_simd_data): Adjust comment.
(struct cp_parser): Remove cilk_simd_fn_info field.
* cp-tree.h (cilk_valid_spawn): Remove.

From-SVN: r255300

re PR tree-optimization/83233 (gimple-ssa-store-merging.c:183:3: warning: unnamed type with no linkage used to declare variable with linkage)

PR tree-optimization/83233
* gimple-ssa-store-merging.c (nop_stats, bswap_stats): Use
bswap_stat name for the struct.

From-SVN: r255299

re PR c/79153 (-Wimplicit-fallthrough missed warning)

PR c/79153
* tree.h (SWITCH_BREAK_LABEL_P): Define.
* gimplify.c (collect_fallthrough_labels): Handle GIMPLE_BIND
starting with a GIMPLE_SWITCH and ending with GIMPLE_LABEL with
SWITCH_BREAK_LABEL_P set on the label.
(gimplify_switch_expr): Set SWITCH_BREAK_LABEL_P on the label
added for default case if it was missing and not all cases covered.
Wrap GIMPLE_SWITCH and the switch_body_seq into a GIMPLE_BIND if
switch_body_seq ends with a GIMPLE_LABEL with SWITCH_BREAK_LABEL_P
set on the label.
* tree-chrec.c (evolution_function_is_univariate_p): Add return true;
to avoid -Wimplicit-fallthrough warning.
* config/i386/i386.c (ix86_expand_special_args_builtin): Add
FALLTHRU comment to avoid -Wimplicit-fallthrough warning.
c/
* c-parser.c: Include tree-iterator.h.
(c_parser_switch_statement): Emit LABEL_EXPR for the break label
into SWITCH_BODY instead of after it and set SWITCH_BREAK_LABEL_P
on it.
cp/
* cp-gimplify.c (genericize_switch_stmt): Emit LABEL_EXPR for the
break label into SWITCH_BODY instead of after it and set
SWITCH_BREAK_LABEL_P on it.
* parser.c (cp_parser_objc_expression): Add FALLTHRU comment to avoid
-Wimplicit-fallthrough warning.
fortran/
* match.c (gfc_match): Add FALLTHRU comment to avoid
-Wimplicit-fallthrough warning.
testsuite/
* c-c++-common/Wimplicit-fallthrough-7.c: Adjust expected warning
line.
* c-c++-common/Wimplicit-fallthrough-36.c: New test.

From-SVN: r255298

re PR tree-optimization/83221 (qsort comparator not anti-commutative: -2147483648, -2147483648)

PR tree-optimization/83221
* tree-ssa-reassoc.c (sort_by_operand_rank): Shift bb_rank
down by 16.
(init_reassoc): Formatting fix.

From-SVN: r255297

re PR sanitizer/81275 (-fsanitize=thread produce incorrect -Wreturn-type warning)

PR sanitizer/81275
* tree-cfg.c (group_case_labels_stmt): Don't optimize away
C++ FE implicitly added __builtin_unreachable () until -Wreturn-type
is diagnosed.

* c-c++-common/tsan/pr81275.c: Remove dg-skip-if.

From-SVN: r255296

re PR sanitizer/83219 (c-c++-common/ubsan/unreachable-2.c fails starting with r255201)

PR sanitizer/83219
* tree-cfg.c: Include asan.h.
(gimple_seq_unreachable_p): Return false for -fsanitize=unreachable.

From-SVN: r255295

re PR fortran/83224 (creating character array from elements shorter than declared does not pad with whitespace properly and aborts)

2017-12-01  Thomas Koenig  <tkoenig@gcc.gnu.org>

PR fortran/83224
* frontend-passes.c (realloc_string_callback): Handle
case for which the RHS is an array expression.

2017-12-01  Thomas Koenig  <tkoenig@gcc.gnu.org>

PR fortran/83224
* gfortran.dg/dependency_50.f90: New test.

From-SVN: r255294

Fix movdi_internal to return MODE_TI with AVX512

gcc/
* config/i386/i386.md: Fix AVX512 register width in AVX512 instruction.

From-SVN: r255293

Replace __popcntq with two _popcnt32.

gcc/testsuite/
* gcc.target/i386/avx512f-vpcompressb-2.c: Fix popcnt for 64b case.

From-SVN: r255292

Fix wrong instruction vpcmpeqd generation

gcc/
* config/i386/i386.c (standard_sse_constant_opcode): Fix wrong form for
vpcmpeqd instruction.

From-SVN: r255291

Fix registers type for MODE_TI

gcc/
* config/i386/i386.c (standard_sse_constant_opcode): Fix
registers type for 128bit mode.

From-SVN: r255290

_mulkc3.c (__mulkc3): Add forward declaration.

2017-11-30  Michael Meissner  <meissner@linux.vnet.ibm.com>

* config/rs6000/_mulkc3.c (__mulkc3): Add forward declaration.
* config/rs6000/_divkc3.c (__divkc3): Likewise.

From-SVN: r255289

Daily bump.

From-SVN: r255288

re PR c/83222 (Inconsistent "initializer element is not constant" error)

PR c/83222
* c-tree.h (decl_constant_value_1): Declare.
* c-typeck.c (decl_constant_value_1): New function.
(decl_constant_value): Use it.
* c-fold.c (c_fully_fold_internal): If in_init, use
decl_constant_value_1 instead of decl_constant_value.

* gcc.c-torture/compile/pr83222.c: New test.

From-SVN: r255285

spellcheck-tree.c (test_find_closest_identifier): Use ; instead of ;;.

* spellcheck-tree.c (test_find_closest_identifier): Use ; instead
of ;;.
* gengtype-state.c (read_state_pair): Likewise.
* gimple-fold.c (gimple_fold_builtin_string_compare): Likewise.
* sel-sched-dump.c (dump_insn_rtx_1): Likewise.
* ipa-cp.c (intersect_aggregates_with_edge): Likewise.
* ifcvt.c (noce_try_store_flag_constants): Likewise.
* tree-ssa-ccp.c (ccp_finalize): Likewise.
* omp-grid.c (grid_process_kernel_body_copy): Likewise.
* builtins.c (fold_builtin_3): Likewise.
* graphite-scop-detection.c
(scop_detection::stmt_has_simple_data_refs_p): Likewise.
* hsa-gen.c (hsa_function_representation::hsa_function_representation):
Likewise.
c/
* c-parser.c (c_parser_postfix_expression): Use ; instead of ;;.
jit/
* jit-recording.c
(recording::memento_of_new_rvalue_from_const <long>::write_reproducer):
Use ; instead of ;;.
lto/
* lto.c (create_subid_section_table): Use ; instead of ;;.
objc/
* objc-next-runtime-abi-01.c (generate_dispatch_table): Use ; instead
of ;;.

From-SVN: r255284

re PR sanitizer/81697 (Incorrect ASan global variables alignment on arm)

gcc/

2017-11-30  Maxim Ostapenko  <m.ostapenko@samsung.com>

PR sanitizer/81697
* asan.c (asan_protect_global): Add new ignore_decl_rtl_set_p
parameter. Return true if ignore_decl_rtl_set_p is true and other
conditions are satisfied.
* asan.h (asan_protect_global): Add new parameter.
* varasm.c (categorize_decl_for_section): Pass true as second parameter
to asan_protect_global calls.

gcc/testsuite/

2017-11-30  Maxim Ostapenko  <m.ostapenko@samsung.com>

PR sanitizer/81697
* c-c++-common/asan/pr81697.c: New test.

From-SVN: r255283

re PR libgcc/83112 (Silence warnings from PowerPC libgcc float128-ifunc.c compilation)

2017-11-30  Michael Meissner  <meissner@linux.vnet.ibm.com>

PR libgcc/83112
* config/rs6000/float128-ifunc.c (__addkf3_resolve): Use the
correct type for all ifunc resolvers to silence -Wattribute-alias
warnings.  Eliminate the forward declaration of the resolver
functions which is no longer needed.
(__subkf3_resolve): Likewise.
(__mulkf3_resolve): Likewise.
(__divkf3_resolve): Likewise.
(__negkf2_resolve): Likewise.
(__eqkf2_resolve): Likewise.
(__nekf2_resolve): Likewise.
(__gekf2_resolve): Likewise.
(__gtkf2_resolve): Likewise.
(__lekf2_resolve): Likewise.
(__ltkf2_resolve): Likewise.
(__unordkf2_resolve): Likewise.
(__extendsfkf2_resolve): Likewise.
(__extenddfkf2_resolve): Likewise.
(__trunckfsf2_resolve): Likewise.
(__trunckfdf2_resolve): Likewise.
(__fixkfsi_resolve): Likewise.
(__fixkfdi_resolve): Likewise.
(__fixunskfsi_resolve): Likewise.
(__fixunskfdi_resolve): Likewise.
(__floatsikf_resolve): Likewise.
(__floatdikf_resolve): Likewise.
(__floatunsikf_resolve): Likewise.
(__floatundikf_resolve): Likewise.
(__extendkftf2_resolve): Likewise.
(__trunctfkf2_resolve): Likewise.

PR libgcc/83103
* config/rs6000/quad-float128.h (TF): Don't define if long double
is IEEE 128-bit floating point.
(TCtype): Define as either TCmode or KCmode, depending on whether
long double is IEEE 128-bit floating point.
(__mulkc3_sw): Add declarations for software/hardware versions of
complex multiply/divide.
(__divkc3_sw): Likewise.
(__mulkc3_hw): Likewise.
(__divkc3_hw): Likewise.
* config/rs6000/_mulkc3.c (_mulkc3): If we are building ifunc
handlers to switch between using software emulation and hardware
float128 instructions, build the complex multiply/divide functions
for both software and hardware support.
* config/rs6000/_divkc3.c (_divkc3): Likewise.
* config/rs6000/float128-ifunc.c (__mulkc3_resolve): Likewise.
(__divkc3_resolve): Likewise.
(__mulkc3): Likewise.
(__divkc3): Likewise.
* config/rs6000/t-float128-hw (fp128_hardfp_src): Likewise.
(fp128_hw_src): Likewise.
(fp128_hw_static_obj): Likewise.
(fp128_hw_shared_obj): Likewise.
(_mulkc3-hw.c): Create _mulkc3-hw.c and _divkc3-hw.c from
_mulkc3.c and _divkc3.c, changing the function name.
(_divkc3-hw.c): Likewise.
* config/rs6000/t-float128 (clean-float128): Delete _mulkc3-hw.c
and _divkc3-hw.c.

From-SVN: r255282

Cleanup riscv option docs.

gcc/
* doc/invoke.texi (RISC-V Options): Delete nonexistent -mmemcpy and
-mno-memcpy options.  For -mplt, -mfdiv, -mdiv, -msave-restore, and
-mstrict-align, add info on default value.  Delete redundant lines for
-mabi.  Add missing -mexplicit-relocs docs.

From-SVN: r255280

PR c++/82219 - bogus -Wignored-qualifiers with template

* pt.c (tsubst_copy_and_build) [STATIC_CAST_EXPR]: Suppress
-Wignored-qualifiers.

From-SVN: r255279

PR libstdc++/65927 Fix -Wunused-but-set-parameter warning

PR libstdc++/65927
* include/bits/locale_facets_nonio.h (__timepunct::_M_am_pm_format):
Remove statement with no effect.

From-SVN: r255278

Move assertion from to_address to __to_address

2017-11-30  Glen Joseph Fernandes  <glenjofe@gmail.com>

* include/bits/ptr_traits.h (__to_address, to_address): Move static
assertion.
* testsuite/20_util/to_address/1_neg.cc: New test.

From-SVN: r255277

[ARC] Add trap instruction.

2017-11-07  Claudiu Zissulescu  <claziss@synopsys.com>

* config/arc/arc.md (trap): New pattern.

From-SVN: r255276

[ARC] Don't allow the last ZOL insn to be in a delay slot.

The ARC ZOL implementation doesn't allow the last instruction to be a
control instruction or part of a delay slot.  Thus, we add a note to
the last ZOL instruction which will prevent it to finish into a delay
slot.

2017-10-20  Claudiu Zissulescu  <claziss@synopsys.com>

* config/arc/arc.c (hwloop_optimize): Prevent the last
        ZOL instruction to end into a delay slot.
* config/arc/arc.md (cond_delay_insn): Check if the instruction
can be placed into a delay slot against reg_note.
(in_delay_slot): Likewise.

testsuite/
2017-10-20  Claudiu Zissulescu  <claziss@synopsys.com>

* gcc.target/arc/loop-3.c: New test.
* gcc.target/arc/loop-4.c: Likewise.

[FIX][ZOL] fix checking for jumps

From-SVN: r255275

[ARC] Update uses for hw-loop labels.

Make sure we mark the hw-loop labels as beeing used.

gcc/
2017-09-19  Claudiu Zissulescu  <claziss@synopsys.com>

* config/arc/arc.c (hwloop_optimize): Update hw-loop's end/start
labels number of usages.

gcc/testsuite
2017-09-19  Claudiu Zissulescu  <claziss@synopsys.com>

* gcc.target/arc/loop-2.cpp: New test.

From-SVN: r255274

[ARC] Use TARGET_CANNOT_SUBSTITUTE_MEM_EQUIV.

Sometimes the memory equivalent is not valid due to a large offset.
For example replacing the ap register with its fp/sp-equivalent during
LRA step. To solve this we introduced TARGET_CANNOT_SUBSTITUTE_MEM_EQUIV.

gcc/
2017-08-08  Claudiu Zissulescu  <claziss@synopsys.com>

* config/arc/arc.c (arc_cannot_substitute_mem_equiv_p): New function.
(TARGET_CANNOT_SUBSTITUTE_MEM_EQUIV_P): Define.

gcc/testsuite
2017-08-08  Claudiu Zissulescu  <claziss@synopsys.com>

* gcc.target/arc/lra-1.c: New test.

From-SVN: r255273

fold-vec-abs-char-fwrapv.c: Add xxspltib insn to expected output.

[testsuite]

2017-11-29  Will Schmidt  <will_schmidt@vnet.ibm.com>

* gcc.target/powerpc/fold-vec-abs-char-fwrapv.c: Add xxspltib insn
to expected output.
* gcc.target/powerpc/fold-vec-abs-char.c: Add xxspltib insn
to expected output.

From-SVN: r255272

PR libstdc++/83226 avoid forming pointer-to-reference type

PR libstdc++/83226
* include/bits/node_handle.h (_Node_handle::__pointer): Avoid forming
pointer-to-reference types.
* testsuite/23_containers/map/modifiers/insert/83226.cc: New test.

From-SVN: r255271

Remove inv_list.

gcc/c-family/
* c-common.h (inv_list): Remove.

From-SVN: r255270

re PR target/83210 (__builtin_mul_overflow() generates suboptimal code when exactly one argument is the constant 2)

PR target/83210
* internal-fn.c (expand_mul_overflow): Optimize unsigned
multiplication by power of 2 constant into two shifts + comparison.

* gcc.target/i386/pr83210.c: New test.

From-SVN: r255269

re PR target/81616 (Update -mtune=generic for the current Intel and AMD processors)

PR target/81616
* x86-tnue-costs.h (generic_cost): Revise for modern CPUs
* gcc.target/i386/l_fma_double_1.c: Update count of fma instructions.
* gcc.target/i386/l_fma_double_2.c: Update count of fma instructions.
* gcc.target/i386/l_fma_double_3.c: Update count of fma instructions.
* gcc.target/i386/l_fma_double_4.c: Update count of fma instructions.
* gcc.target/i386/l_fma_double_5.c: Update count of fma instructions.
* gcc.target/i386/l_fma_double_6.c: Update count of fma instructions.
* gcc.target/i386/l_fma_float_1.c: Update count of fma instructions.
* gcc.target/i386/l_fma_float_2.c: Update count of fma instructions.
* gcc.target/i386/l_fma_float_3.c: Update count of fma instructions.
* gcc.target/i386/l_fma_float_4.c: Update count of fma instructions.
* gcc.target/i386/l_fma_float_5.c: Update count of fma instructions.
* gcc.target/i386/l_fma_float_6.c: Update count of fma instructions.

From-SVN: r255268

re PR tree-optimization/83202 (Try joining operations on consecutive array elements during tree vectorization)

2017-11-30  Richard Biener  <rguenther@suse.de>

PR tree-optimization/83202
* tree-ssa-loop-ivcanon.c (try_unroll_loop_completely): Add
allow_peel argument and guard peeling.
(canonicalize_loop_induction_variables): Likewise.
(canonicalize_induction_variables): Pass false.
(tree_unroll_loops_completely_1): Pass unroll_outer to disallow
peeling from cunrolli.

* gcc.dg/vect/pr83202-1.c: New testcase.
* gcc.dg/tree-ssa/pr61743-1.c: Adjust.

From-SVN: r255267

compiler: don't make map zero value constant

    The map zero value is a common symbol, and it doesn't really make
    sense to have a constant common symbol. Current GCC has started to
    reject this case, probably as part of the fix for PR 83100.

    Reviewed-on: https://go-review.googlesource.com/80877

From-SVN: r255266

baseline_symbols.txt: Update.

* config/abi/post/hppa-linux-gnu/baseline_symbols.txt: Update.

From-SVN: r255265

Daily bump.

From-SVN: r255264

combine: Print to dump if some insn cannot be combined into i3

Eventually we should print the reason that any combination fails.
This is a good start (these happen often).

* combine.c (try_combine): Print a message to dump file whenever
I0, I1, or I2 cannot be combined into I3.

From-SVN: r255261

combine: Do not throw away unneeded arms of parallels (PR83156)

The fix for PR82621 makes us not split an I2 if one of the results of
those SETs is unused, since combine does not handle that properly.  But
this results in degradation for i386 (or more in general, for any
target that does not have patterns for parallels with an unused result
as a CLOBBER instead of a SET for that result).

This patch instead makes us not split only if one of the results is set
again before I3.  That fixes PR83156 and also fixes PR82621.

Unfortunately it undoes the nice optimisations that the previous patch
did on powerpc.

PR rtl-optimization/83156
PR rtl-optimization/82621
* combine.c (try_combine): Don't split an I2 if one of the dests is
set again before I3.  Allow unused dests.

From-SVN: r255260

rs6000: Add second variant of adde

This adds a second variant of the adde insn pattern, this one with the
CA register as the second operand.  The existing pattern has it as the
third operand.  It would be ideal if RTL was always canonicalised like
that, but it isn't (and that is not trivial), and this is a simple and
harmless patch.

* config/rs6000/rs6000.md (*add<mode>3_carry_in_internal2): New.

From-SVN: r255259

re PR rtl-optimization/80818 (LRA clobbers live hard reg clobbered during rematerialization)

2017-11-29  Vladimir Makarov  <vmakarov@redhat.com>

PR rtl-optimization/80818
* lra.c (collect_non_operand_hard_regs): New arg insn.  Pass it
recursively.  Use insn code for clobber.
(lra_set_insn_recog_data): Pass the new arg to
collect_non_operand_hard_regs.
(add_regs_to_insn_regno_info): Pass insn instead of uid.  Use insn
code for clobber.
(lra_update_insn_regno_info): Pass insn to
add_regs_to_insn_regno_info.

From-SVN: r255258

Riscv patterns to optimize away some redundant zero/sign extends.

gcc/
* config/riscv/riscv.c (SINGLE_SHIFT_COST): New.
(riscv_rtx_costs): Case ZERO_EXTRACT, match new pattern, and return
SINGLE_SHIFT_COST.  Case LT and ZERO_EXTEND, likewise.  Case ASHIFT,
use SINGLE_SHIFT_COST.
* config/riscv/riscv.md (lshrsi3_zero_extend_1): New.
(lshrsi3_zero_extend_2, lshrsi3_zero_extend_3): New.

gcc/testsuite/
* gcc.target/riscv/riscv.exp: New.
* gcc.target/riscv/zero-extend-1.c: New.
* gcc.target/riscv/zero-extend-2.c: New.
* gcc.target/riscv/zero-extend-3.c: New.
* gcc.target/riscv/zero-extend-4.c: New.

Co-Authored-By: Andrew Waterman <andrew@sifive.com>
From-SVN: r255257

C++: improve location of static_assert errors

gcc/cp/ChangeLog:
* parser.c (cp_parser_unary_expression): Generate a location for
"noexcept".
(cp_parser_trait_expr): Generate and return a location_t,
converting the return type from tree to cp_expr.
(cp_parser_static_assert): Pass location of the condition to
finish_static_assert, rather than that of the "static_assert"
token, where available.

gcc/testsuite/ChangeLog:
* g++.dg/cpp1y/static_assert3.C: New test case.

libstdc++-v3/ChangeLog:
* testsuite/20_util/duration/literals/range.cc: Update expected
line of a static_assert failure.

From-SVN: r255255

re PR c++/82293 (ICE in nonlambda_method_basetype at gcc/cp/lambda.c:886)

/cp
2017-11-29  Paolo Carlini  <paolo.carlini@oracle.com>

PR c++/82293
* lambda.c (nonlambda_method_basetype): Don't use LAMBDA_TYPE_P
on a null type.

/testsuite
2017-11-29  Paolo Carlini  <paolo.carlini@oracle.com>

PR c++/82293
* g++.dg/cpp0x/lambda/lambda-ice24.C: New.

From-SVN: r255254

PR c++/82760 - memory corruption with aligned new.

* call.c (build_operator_new_call): Update *args if we add the
align_arg.

From-SVN: r255253

fold-vec-ld-char.c: Add lxv insn to expected output.

[testsuite]

2017-11-29  Will Schmidt  <will_schmidt@vnet.ibm.com>

    * gcc.target/powerpc/fold-vec-ld-char.c: Add lxv insn to expected output.
    * gcc.target/powerpc/fold-vec-ld-double.c: Add lxv insn to expected output.
    * gcc.target/powerpc/fold-vec-ld-float.c: Add lxv insn to expected output.
    * gcc.target/powerpc/fold-vec-ld-int.c: Add lxv insn to expected output.
    * gcc.target/powerpc/fold-vec-ld-longlong.c: Add lxv insn to expected output.
    * gcc.target/powerpc/fold-vec-ld-short.c: Add lxv insn to expected output.

From-SVN: r255252

fold-vec-splat-8.c: Add vspltisb to expected output.

[testsuite]
2017-11-29  Will Schmidt  <will_schmidt@vnet.ibm.com>

    * gcc.target/powerpc/fold-vec-splat-8.c: Add vspltisb to expected output.
    * gcc.target/powerpc/fold-vec-splats-int.c: Add mtvsrws to expected output.
    * gcc.target/powerpc/fold-vec-splats-longlong.c: Add mtvsrdd to expected output.

From-SVN: r255251

nable VBMI2 support [7/7]

gcc/
* config/i386/avx512vbmi2intrin.h (_mm512_shldv_epi16,
_mm512_mask_shldv_epi16, _mm512_maskz_shldv_epi16, _mm512_shldv_epi32,
_mm512_mask_shldv_epi32, _mm512_maskz_shldv_epi32, _mm512_shldv_epi64,
_mm512_mask_shldv_epi64, _mm512_maskz_shldv_epi64): New intrinsics.
* config/i386/avx512vbmi2vlintrin.h (_mm256_shldv_epi16,
_mm256_mask_shldv_epi16, _mm256_maskz_shldv_epi16, _mm256_shldv_epi32,
_mm256_mask_shldv_epi32, _mm256_maskz_shldv_epi32, _mm256_shldv_epi64,
_mm256_mask_shldv_epi64, _mm256_maskz_shldv_epi64, _mm_shldv_epi16,
_mm_mask_shldv_epi16, _mm_maskz_shldv_epi16, _mm_shldv_epi32,
_mm_mask_shldv_epi32, _mm_maskz_shldv_epi32, _mm_shldv_epi64,
_mm_mask_shldv_epi64, _mm_maskz_shldv_epi64): Ditto.
* config/i386/i386-builtin.def (__builtin_ia32_vpshldv_v32hi,
__builtin_ia32_vpshldv_v32hi_mask, __builtin_ia32_vpshldv_v32hi_maskz,
__builtin_ia32_vpshldv_v16hi, __builtin_ia32_vpshldv_v16hi_mask,
__builtin_ia32_vpshldv_v16hi_maskz, __builtin_ia32_vpshldv_v8hi,
__builtin_ia32_vpshldv_v8hi_mask, __builtin_ia32_vpshldv_v8hi_maskz,
__builtin_ia32_vpshldv_v16si, __builtin_ia32_vpshldv_v16si_mask,
__builtin_ia32_vpshldv_v16si_maskz, __builtin_ia32_vpshldv_v8si,
__builtin_ia32_vpshldv_v8si_mask, __builtin_ia32_vpshldv_v8si_maskz,
__builtin_ia32_vpshldv_v4si, __builtin_ia32_vpshldv_v4si_mask,
__builtin_ia32_vpshldv_v4si_maskz, __builtin_ia32_vpshldv_v8di,
__builtin_ia32_vpshldv_v8di_mask, __builtin_ia32_vpshldv_v8di_maskz,
__builtin_ia32_vpshldv_v4di, __builtin_ia32_vpshldv_v4di_mask,
__builtin_ia32_vpshldv_v4di_maskz, __builtin_ia32_vpshldv_v2di,
__builtin_ia32_vpshldv_v2di_mask,
__builtin_ia32_vpshldv_v2di_maskz): New builtins.
* config/i386/sse.md (vpshldv_<mode>, vpshldv_<mode>_mask,
vpshldv_<mode>_maskz, vpshldv_<mode>_maskz_1): New patterns.

gcc/testsuite/
* gcc.target/i386/avx512f-vpshldv-1.c: New test.
* gcc.target/i386/avx512f-vpshldvd-2.c: Ditto.
* gcc.target/i386/avx512f-vpshldvq-2.c: Ditto.
* gcc.target/i386/avx512f-vpshldvw-2.c: Ditto.
* gcc.target/i386/avx512vl-vpshldv-1.c: Ditto.
* gcc.target/i386/avx512vl-vpshldvd-2.c: Ditto.
* gcc.target/i386/avx512vl-vpshldvq-2.c: Ditto.
* gcc.target/i386/avx512vl-vpshldvw-2.c: Ditto.

From-SVN: r255250

Enable VBMI2 support [6/7]

gcc/
* config/i386/avx512vbmi2intrin.h (_mm512_shrdv_epi16,
_mm512_mask_shrdv_epi16, _mm512_maskz_shrdv_epi16, _mm512_shrdv_epi32,
_mm512_mask_shrdv_epi32, _mm512_maskz_shrdv_epi32, _mm512_shrdv_epi64,
_mm512_mask_shrdv_epi64, _mm512_maskz_shrdv_epi64): New intrinsics.
* config/i386/avx512vbmi2vlintrin.h (_mm256_shrdv_epi16,
_mm256_mask_shrdv_epi16, _mm256_maskz_shrdv_epi16, _mm256_shrdv_epi32,
_mm256_mask_shrdv_epi32, _mm256_maskz_shrdv_epi32, _mm256_shrdv_epi64,
_mm256_mask_shrdv_epi64, _mm256_maskz_shrdv_epi64, _mm_shrdv_epi16,
_mm_mask_shrdv_epi16, _mm_maskz_shrdv_epi16, _mm_shrdv_epi32,
_mm_mask_shrdv_epi32, _mm_maskz_shrdv_epi32, _mm_shrdv_epi64,
_mm_mask_shrdv_epi64, _mm_maskz_shrdv_epi64): Ditto.
* config/i386/i386-builtin-types.def (V32HI_FTYPE_V32HI_V32HI_V32HI,
V32HI_FTYPE_V32HI_V32HI_V32HI_INT, V16HI_FTYPE_V16HI_V16HI_V16HI_INT,
V8HI_FTYPE_V8HI_V8HI_V8HI_INT, V8SI_FTYPE_V8SI_V8SI_V8SI_INT,
V4SI_FTYPE_V4SI_V4SI_V4SI_INT, V8DI_FTYPE_V8DI_V8DI_V8DI,
V8DI_FTYPE_V8DI_V8DI_V8DI_INT, V4DI_FTYPE_V4DI_V4DI_V4DI_INT,
V16SI_FTYPE_V16SI_V16SI_V16SI, V16SI_FTYPE_V16SI_V16SI_V16SI_INT,
V2DI_FTYPE_V2DI_V2DI_V2DI_INT): New types.
* config/i386/i386.c (ix86_expand_args_builtin): Handle new types.
* config/i386/sse.md (vpshrdv_<mode>, vpshrdv_<mode>_mask,
vpshrdv_<mode>_maskz, vpshrdv_<mode>_maskz_1): New pattern.

gcc/testsuite/
* gcc.target/i386/avx512f-vpshrdv-1.c: New test.
* gcc.target/i386/avx512f-vpshrdvd-2.c: Ditto.
* gcc.target/i386/avx512f-vpshrdvq-2.c: Ditto.
* gcc.target/i386/avx512f-vpshrdvw-2.c: Ditto.
* gcc.target/i386/avx512f-vpshrdw-2.c: Ditto.
* gcc.target/i386/avx512vl-vpshrdv-1.c: Ditto.
* gcc.target/i386/avx512vl-vpshrdvd-2.c: Ditto.
* gcc.target/i386/avx512vl-vpshrdvq-2.c: Ditto.
* gcc.target/i386/avx512vl-vpshrdvw-2.c: Ditto.
* gcc.target/i386/avx512vl-vpshrdw-2.c: Ditto.

From-SVN: r255249

Add myself as GCC maintainer

From-SVN: r255248

re PR tree-optimization/83195 (pr82929.c scan for "Merging successful" fail)

PR tree-optimization/83195
* gcc.dg/pr82929.c: Don't check for "Merging successful" on arm.
* gcc.dg/pr82929-2.c: New test.

From-SVN: r255247

[SPARC] Recognize the load when accessing the GOT

Needed for the UT699 errata workaround to function correctly when
compiling with -fPIC.

2017-11-29  Daniel Cederman  <cederman@gaisler.com>

gcc/
* config/sparc/sparc.c (sparc_do_work_around_errata): Treat the
        movsi_pic_gotdata_op instruction as a load for the UT699 errata
        workaround.

From-SVN: r255239

[SPARC] Prevent -mfix-ut699 from generating b2bst errata sequences

The sequence
  st
  fdivd / fsqrtd
  std
was generated in some cases with -mfix-ut699 when there was
a st before the div/sqrt. This sequence could trigger the b2bst errata.

Now the following safe sequence is generated instead:
  st
  nop
  fdivd / fsqrtd
  std

2017-11-29  Martin Aberg  <maberg@gaisler.com>

gcc/
* config/sparc/sparc.md (divdf3_fix): Add NOP and adjust length
        to prevent b2bst errata sequence.
        (sqrtdf2_fix): Likewise.

From-SVN: r255238

[SPARC] Errata workaround for GRLIB-TN-0013

This patch provides a workaround for the errata described in GRLIB-TN-0013.

If the workaround is enabled it will:

* Prevent div and sqrt instructions in the delay slot.

* Insert NOPs to prevent the sequence (div/sqrt) -> (two or three floating
  point operations or loads) -> (div/sqrt).

* Not insert NOPs if any of the floating point operations have a dependency
  on the destination register of the first (div/sqrt).

* Not insert NOPs if one of the floating point operations is a (div/sqrt).

* Insert NOPs to prevent (div/sqrt) followed by a branch.

It is applicable to GR712RC, UT700, and UT699.

2017-11-29  Daniel Cederman  <cederman@gaisler.com>

gcc/
* config/sparc/sparc.c (fpop_reg_depend_p): New function.
(div_sqrt_insn_p): New function.
(sparc_do_work_around_errata): Insert NOP instructions to
prevent sequences that could trigger the TN-0013 errata for
certain LEON3 processors.
(pass_work_around_errata::gate): Also test sparc_fix_lost_divsqrt.
(sparc_option_override): Set sparc_fix_lost_divsqrt appropriately.
* config/sparc/sparc.md (fix_lost_divsqrt): New attribute.
(in_branch_delay): Prevent div and sqrt in delay slot if
fix_lost_divsqrt.
* config/sparc/sparc.opt (sparc_fix_lost_divsqrt): New variable.

From-SVN: r255237

[SPARC] Errata workaround for GRLIB-TN-0010

This patch provides a workaround for the errata described in GRLIB-TN-0010.

If the workaround is enabled it will:

 * Insert a NOP between load instruction and atomic
   instruction (swap, ldstub, casa).

 * Insert a NOP at branch target if load in delay slot
   and atomic instruction at branch target.

It is applicable to UT700.

2017-11-29  Daniel Cederman  <cederman@gaisler.com>

gcc/
* config/sparc/sparc.c (atomic_insn_p): New function.
(sparc_do_work_around_errata): Insert NOP instructions to
prevent sequences that could trigger the TN-0010 errata for
UT700.
* config/sparc/sync.md (atomic_compare_and_swap_leon3_1): Make
instruction referable in atomic_insns_p.

From-SVN: r255236

[SPARC] Errata workaround for GRLIB-TN-0011

This patch provides a workaround for the errata described in GRLIB-TN-0011.

If the workaround is enabled it will:

 * Insert .align 16 before atomic instructions (swap, ldstub, casa).

It is applicable to GR712RC.

2017-11-29  Daniel Cederman  <cederman@gaisler.com>

gcc/
* config/sparc/sync.md (swapsi): 16-byte align if sparc_fix_gr712rc.
(atomic_compare_and_swap_leon3_1): Likewise.
(ldstub): Likewise.

From-SVN: r255235

[SPARC] Errata workaround for GRLIB-TN-0012

This patch provides a workaround for the errata described in GRLIB-TN-0012.

If the workaround is enabled it will:

 * Prevent any floating-point operation from being placed in the
   delay slot of an annulled integer branch.

 * Place a NOP at the branch target of an integer branch if it is
   a floating-point operation or a floating-point branch.

It is applicable to GR712RC.

2017-11-29  Daniel Cederman  <cederman@gaisler.com>

gcc/
* config/sparc/sparc.c (fpop_insn_p): New function.
(sparc_do_work_around_errata): Insert NOP instructions to
prevent sequences that could trigger the TN-0012 errata for
GR712RC.
(pass_work_around_errata::gate): Also test sparc_fix_gr712rc.
* config/sparc/sparc.md (fix_gr712rc): New attribute.
(in_branch_annul_delay): Prevent floating-point instructions
in delay slot of annulled integer branch.

From-SVN: r255234

re PR tree-optimization/83202 (Try joining operations on consecutive array elements during tree vectorization)

2017-11-29  Richard Biener  <rguenther@suse.de>

PR tree-optimization/83202
* tree-vect-slp.c (scalar_stmts_set_t): New typedef.
(bst_fail): Use it.
(vect_analyze_slp_cost_1): Add visited set, do not account SLP
nodes vectorized to the same stmts multiple times.
(vect_analyze_slp_cost): Allocate a visited set and pass it down.
(vect_analyze_slp_instance): Adjust.
(scalar_stmts_to_slp_tree_map_t): New typedef.
(vect_schedule_slp_instance): Add a map recording the SLP node
representing the vectorized stmts for a set of scalar stmts.
Avoid code-generating redundancies.
(vect_schedule_slp): Allocate map and pass it down.

* gcc.dg/vect/costmodel/x86_64/costmodel-pr83202.c: New testcase.

From-SVN: r255233

Fix PR number 83817->83187

From-SVN: r255232

[PATCH] complex type canonicalization

https://gcc.gnu.org/ml/gcc-patches/2017-11/msg02453.html
PR c++/83817
* tree.c (build_complex_type): Fix canonicalization.  Only fill in
type if it is new.

PR c++/83187
* g++.dg/opt/pr83187.C: New.

From-SVN: r255231

[AArch64] Fix ICE due to store_pair_lanes

The recently added store_pair_lanes causes ICEs in output_operand.
This is due to aarch64_classify_address treating it like a 128-bit STR
rather than a STP.  The valid immediate offsets don't fully overlap,
causing it to return false.  Eg. offset 264 is a valid 8-byte STP offset
but not a valid 16-byte STR offset since it isn't a multiple of 16.

The original instruction isn't passed in the printing code, so the context
is unclear.  The solution is to add a new operand formatting specifier
which is used for LDP/STP instructions like this.  This, like the Uml
constraint that applies to store_pair_lanes, uses PARALLEL when calling
aarch64_classify_address so that it knows it is an STP.
Also add the 'z' specifier for future use by load/store pair instructions.

    gcc/
* config/aarch64/aarch64.c (aarch64_print_operand): Add new
cases for printing LDP/STP memory addresses.
(aarch64_print_address_internal): Renamed from
aarch64_print_operand_address, added parameter, add Pmode check.
(aarch64_print_ldpstp_address): New function for LDP/STP addresses.
(aarch64_print_operand_address): Indirect to
aarch64_print_address_internal.
* config/aarch64/aarch64-simd.md (store_pair_lanes): Use new
'y' operand output specifier.

From-SVN: r255230

re PR middle-end/83185 (ICE with -fsanitize=address in build_simple_mem_ref_loc, at tree.c:4696)

PR middle-end/83185
* tree.c (build_simple_mem_ref_loc): Handle
get_addr_base_and_unit_offset returning a MEM_REF.

* gcc.dg/asan/pr83185.c: New test.

From-SVN: r255229

re PR middle-end/80929 (Division with constant no more optimized to mult highpart)

PR middle-end/80929
* rtlanal.c (seq_cost): For non-single_set insns try to use insn_cost.

From-SVN: r255228

fix merge conflict in libgfortran/ChangeLog

From-SVN: r255227

re PR target/80819 (Useless store to the stack  in _mm_set_epi64x with SSE4 -mno-avx)

PR target/80819
* config/i386/sse.md (vec_concatv2di): Remove * from (=Yr,0,*rm)
alternative.

* gcc.target/i386/pr80819-1.c: New test.
* gcc.target/i386/pr80819-2.c: New test.

From-SVN: r255226

re PR libfortran/83168 (FAIL: gfortran.dg/fmt_f0_2.f90 with a sanitized libgfortran)

2017-11-28  Jerry DeLisle  <jvdelisle@gcc.gnu.org>

PR libgfortran/83168
* io/write.c (select_string): Bump size by one to avoid
overrun.

From-SVN: r255225

Daily bump.

From-SVN: r255224

Fix some incorrectly formatted ChangeLog entries.

From-SVN: r255220

Handle very long lines when printing fix-it hints

When fixing PR c/82050 I noticed a bug in how we print fix-it hints
for very long lines: we weren't taking into account the x-offset for
the line when printing the fix-it hint.

This could lead to output where instead of printing:

foo.c:14:3944: error: etc
  = foo.field
        ^~~~~
        replacement

where the lines have been offset to start printing at about column 3900,
the "replacement" line was erroneously *not* offset, and was thus
prefixed by thousands of spaces, leading to large whitespace gaps in
the output, and the replacement failing to line up with the source to be
replaced.

Fixed thusly.

gcc/ChangeLog:
* diagnostic-show-locus.c (layout::print_trailing_fixits): Handle
m_x_offset.
(layout::move_to_column): Likewise.

gcc/testsuite/ChangeLog:
* gcc.dg/plugin/diagnostic-test-show-locus-bw.c
(test_very_wide_line): Update expected output to include a
fix-it hint.
* gcc.dg/plugin/diagnostic-test-show-locus-color.c
(test_very_wide_line): Likewise.
* gcc.dg/plugin/diagnostic_plugin_test_show_locus.c
(test_show_locus): Add a fix-it hint to "test_very_wide_line".

From-SVN: r255219

re PR sanitizer/81275 (-fsanitize=thread produce incorrect -Wreturn-type warning)

PR sanitizer/81275
* cp-tree.h (SWITCH_STMT_ALL_CASES_P): Define.
(SWITCH_STMT_NO_BREAK_P): Define.
(note_break_stmt, note_iteration_stmt_body_start,
note_iteration_stmt_body_end): Declare.
* decl.c (struct cp_switch): Add has_default_p, break_stmt_seen_p
and in_loop_body_p fields.
(push_switch): Clear them.
(pop_switch): Set SWITCH_STMT_CANNOT_FALLTHRU_P if has_default_p
and !break_stmt_seen_p.  Assert in_loop_body_p is false.
(note_break_stmt, note_iteration_stmt_body_start,
note_iteration_stmt_body_end): New functions.
(finish_case_label): Set has_default_p when both low and high
are NULL_TREE.
* parser.c (cp_parser_iteration_statement): Use
note_iteration_stmt_body_start and note_iteration_stmt_body_end
around parsing iteration body.
* pt.c (tsubst_expr): Likewise.
* cp-objcp-common.c (cxx_block_may_fallthru): Return false for
SWITCH_STMT which contains no BREAK_STMTs, contains a default:
CASE_LABEL_EXPR and where SWITCH_STMT_BODY isn't empty and
can't fallthru.
* semantics.c (finish_break_stmt): Call note_break_stmt.
* cp-gimplify.c (genericize_switch_stmt): Copy SWITCH_STMT_ALL_CASES_P
bit to SWITCH_ALL_CASES_P.  Assert that if SWITCH_STMT_NO_BREAK_P then
the break label is not TREE_USED.

* g++.dg/warn/pr81275-1.C: New test.
* g++.dg/warn/pr81275-2.C: New test.
* g++.dg/warn/pr81275-3.C: New test.
* c-c++-common/tsan/pr81275.c: Skip for C++ and -O2.

From-SVN: r255218

re PR sanitizer/81275 (-fsanitize=thread produce incorrect -Wreturn-type warning)

PR sanitizer/81275
* tree.c (block_may_fallthru): Return false if SWITCH_ALL_CASES_P
is set on SWITCH_EXPR and !block_may_fallthru (SWITCH_BODY ()).
c/
* c-typeck.c (c_finish_case): Set SWITCH_ALL_CASES_P if
c_switch_covers_all_cases_p returns true.
c-family/
* c-common.c (c_switch_covers_all_cases_p_1,
c_switch_covers_all_cases_p): New functions.
* c-common.h (c_switch_covers_all_cases_p): Declare.
testsuite/
* c-c++-common/tsan/pr81275.c: New test.

From-SVN: r255217

PR 53796 Improve INQUIRE(RECL=...) handling

The current F2018 draft (N2137) specifies behavior of the RECL=
specifier in the INQUIRE statement, where it previously was left as
undefined. Namely:

- If the unit is not connected, RECL= should be given the value -1.
- If the unit is connected with stream access, RECL= should be given
  the value -2.

Further, as PR 53796 describes, the handling of RECL= is poor in other
ways as well. When the recl is set to the maximum possible
(GFC_INTEGER_8_HUGE / LLONG_MAX), which it does by default except for
preconnected units, and when INQUIRE(RECL=) is used with a 4 byte
integer, the value is truncated and the 4 byte value is thus
-1. Fixing this to generate an error is a lot of work, as currently
the truncation is done by the frontend, the library sees only an 8
byte value with no indication that the frontend is going to copy it to
a 4 byte one. Instead, this patch does a bit twiddling trick such that
the truncated 4 byte value is GFC_INTEGER_4_HUGE while still being
0.99999999 * GFC_INTEGER_8_HUGE which is large enough for all
practical purposes.

Finally, the patch removes GFORTRAN_DEFAULT_RECL which was used only
for preconnected units, and instead uses the same approach as describe
above.

Regtested on x86_64-pc-linux-gnu, Ok for trunk.

gcc/fortran/ChangeLog:

2017-11-28  Janne Blomqvist  <jb@gcc.gnu.org>

PR fortran/53796
* gfortran.texi: Remove mentions of GFORTRAN_DEFAULT_RECL.

libgfortran/ChangeLog:

2017-11-28  Janne Blomqvist  <jb@gcc.gnu.org>

PR fortran/53796
* io/inquire.c (inquire_via_unit): Set recl to -1 for unconnected
units.
* io/io.h (default_recl): New variable.
* io/open.c (new_unit): Set recl to default_recl for sequential,
-2 for stream access.
* io/transfer.c (read_block_form): Test against default_recl
instead of DEFAULT_RECL.
(write_block): Likewise.
* io/unit.c (init_units): Calculate max_offset, default_recl.
* libgfortran.h (DEFAULT_RECL): Remove.
* runtime/environ.c: Remove GFORTRAN_DEFAULT_RECL.

gcc/testsuite/ChangeLog:

2017-11-28  Janne Blomqvist  <jb@gcc.gnu.org>

PR fortran/53796
* gfortran.dg/inquire_recl_f2018.f90: New test.

From-SVN: r255215

Reject fix-it hints for various awkward boundary cases (PR c/82050)

PR c/82050 reports a failed assertion deep within diagnostic_show_locus's
code for printing fix-it hints.

The root cause is a fix-it hint suggesting a textual replacement,
where the affected column numbers straddle the LINE_MAP_MAX_COLUMN_NUMBER
boundary, so that the start of the range has a column number, but the
end of the range doesn't.

The fix is to verify that the column numbers are sane when adding fix-it
hints to a rich_location, rejecting fix-it hints where they are not.

libcpp/ChangeLog:
PR c/82050
* include/line-map.h (LINE_MAP_MAX_COLUMN_NUMBER): Move here.
* line-map.c (LINE_MAP_MAX_COLUMN_NUMBER): ...from here.
(rich_location::maybe_add_fixit): Reject fix-it hints in which
the start column exceeds the next column.

From-SVN: r255214

[PR 82808] Use proper result types for arithmetic jump functions

2017-11-28  Prathamesh Kulkarni  <prathamesh.kulkarni@linaro.org>
    Martin Jambor  <mjambor@suse.cz>

PR ipa/82808
* tree.h (expr_type_first_operand_type_p): Declare
* tree.c (expr_type_first_operand_type_p): New function.
* ipa-prop.h (ipa_get_type): Allow i to be out of bounds.
(ipa_value_from_jfunc): Adjust declaration.
* ipa-cp.c (ipa_get_jf_pass_through_result): New parameter RES_TYPE.
Use it as result type for arithmetics, unless it is NULL in which case
be more conservative.
(ipa_value_from_jfunc): New parameter PARM_TYPE, pass it to
ipa_get_jf_pass_through_result.
(propagate_vals_across_pass_through): Likewise.
(propagate_scalar_across_jump_function): New parameter PARM_TYPE, pass
is to propagate_vals_across_pass_through.
(propagate_constants_across_call): Pass PARM_TYPE to
propagate_scalar_across_jump_function.
(find_more_scalar_values_for_callers_subset): Pass parameter type to
ipa_value_from_jfunc.
(cgraph_edge_brings_all_scalars_for_node): Likewise.
* ipa-fnsummary.c (evaluate_properties_for_edge): Renamed parms_info
to caller_parms_info, pass parameter type to ipa_value_from_jfunc.
* ipa-prop.c (try_make_edge_direct_simple_call): New parameter
target_type, pass it to ipa_value_from_jfunc.
(update_indirect_edges_after_inlining): Pass parameter type to
try_make_edge_direct_simple_call.

testsuite/
* gcc.dg/ipa/pr82808.c: New test.

Co-Authored-By: Martin Jambor <mjambor@suse.cz>
From-SVN: r255212

* gimple-ssa-evrp-analyze.c
(evrp_range_analyzer::record_ranges_from_phis): Only use SCEV to
refine ranges if scev_initialized_p returns true.
* vr-values.c (vr_values::extract_range_from_phi_node): Likewise.

From-SVN: r255211

* g++.dg/cpp0x/fntmpdefarg2a.C: Move expected warning.

From-SVN: r255210

Enable VBMI2 support [5/7]

gcc/
* config/i386/avx512vbmi2intrin.h (_mm512_shrdi_epi16,
_mm512_mask_shrdi_epi16, _mm512_maskz_shrdi_epi16, _mm512_shrdi_epi32,
_mm512_mask_shrdi_epi32, _mm512_maskz_shrdi_epi32, _mm512_shrdi_epi64,
_mm512_mask_shrdi_epi64, _mm512_maskz_shrdi_epi64): New intrinsics.
* config/i386/avx512vbmi2vlintrin.h (_mm256_shrdi_epi16,
_mm256_mask_shrdi_epi16, _mm256_maskz_shrdi_epi16,
_mm256_mask_shrdi_epi32, _mm256_maskz_shrdi_epi32, _mm256_shrdi_epi32,
_mm256_mask_shrdi_epi64, _mm256_maskz_shrdi_epi64, _mm256_shrdi_epi64,
_mm_mask_shrdi_epi16, _mm_maskz_shrdi_epi16, _mm_shrdi_epi16,
_mm_mask_shrdi_epi32, _mm_maskz_shrdi_epi32, _mm_shrdi_epi32,
_mm_mask_shrdi_epi64, _mm_maskz_shrdi_epi64, _mm_shrdi_epi64): Ditto.
* config/i386/i386-builtin.def (__builtin_ia32_vpshrd_v32hi,
__builtin_ia32_vpshrd_v32hi_mask, __builtin_ia32_vpshrd_v16hi,
__builtin_ia32_vpshrd_v16hi_mask, __builtin_ia32_vpshrd_v8hi,
__builtin_ia32_vpshrd_v8hi_mask, __builtin_ia32_vpshrd_v16si,
__builtin_ia32_vpshrd_v16si_mask, __builtin_ia32_vpshrd_v8si,
__builtin_ia32_vpshrd_v8si_mask, __builtin_ia32_vpshrd_v4si,
__builtin_ia32_vpshrd_v4si_mask, __builtin_ia32_vpshrd_v8di,
__builtin_ia32_vpshrd_v8di_mask, __builtin_ia32_vpshrd_v4di,
__builtin_ia32_vpshrd_v4di_mask, __builtin_ia32_vpshrd_v2di,
__builtin_ia32_vpshrd_v2di_mask): New builtins.
* config/i386/sse.md (vpshrd_<mode><mask_name>): New pattern.

gcc/testsuite/
* gcc.target/i386/avx-1.c: Handle new intrinsics.
* gcc.target/i386/sse-13.c: Ditto.
* gcc.target/i386/sse-23.c: Ditto.
* gcc.target/i386/avx512f-vpshrdd-2.c: New.
* gcc.target/i386/avx512f-vpshrdq-2.c: Ditto.
* gcc.target/i386/avx512vl-vpshrd-1.c: Ditto.
* gcc.target/i386/avx512vl-vpshrdd-2.c: Ditto.
* gcc.target/i386/avx512vl-vpshrdq-2.c: Ditto.

From-SVN: r255209

Enable VBMI2 support [4/7]

gcc/
config/i386/avx512vbmi2intrin.h (_mm512_shldi_epi16,
_mm512_mask_shldi_epi16, _mm512_maskz_shldi_epi16, _mm512_shldi_epi32,
_mm512_mask_shldi_epi32, _mm512_maskz_shldi_epi32, _mm512_shldi_epi64,
_mm512_mask_shldi_epi64, _mm512_maskz_shldi_epi64): New intrinsics.
config/i386/avx512vbmi2vlintrin.h (_mm256_shldi_epi16,
_mm256_mask_shldi_epi16, _mm256_maskz_shldi_epi16,
_mm256_mask_shldi_epi32, _mm256_maskz_shldi_epi32, _mm256_shldi_epi32,
_mm256_mask_shldi_epi64, _mm256_maskz_shldi_epi64, _mm256_shldi_epi64,
_mm_mask_shldi_epi16, _mm_maskz_shldi_epi16, _mm_shldi_epi16,
_mm_mask_shldi_epi32, _mm_maskz_shldi_epi32, _mm_shldi_epi32,
_mm_mask_shldi_epi64, _mm_maskz_shldi_epi64, _mm_shldi_epi64): Ditto.
config/i386/i386-builtin-types.def (V32HI_FTYPE_V32HI_V32HI_INT,
V32HI_FTYPE_V32HI_V32HI_INT_V32HI_INT, V16SI_FTYPE_V16SI_V16SI_INT,
V16SI_FTYPE_V16SI_V16SI_INT_V16SI_INT,
V8DI_FTYPE_V8DI_V8DI_INT_V8DI_INT, V8SI_FTYPE_V8SI_V8SI_INT_V8SI_INT,
V16HI_FTYPE_V16HI_V16HI_INT_V16HI_INT,
V4DI_FTYPE_V4DI_V4DI_INT_V4DI_INT,
V8HI_FTYPE_V8HI_V8HI_INT_V8HI_INT,
V4SI_FTYPE_V4SI_V4SI_INT_V4SI_INT,
V2DI_FTYPE_V2DI_V2DI_INT_V2DI_INT): New types.
config/i386/i386-builtin.def (__builtin_ia32_vpshld_v32hi,
__builtin_ia32_vpshld_v32hi_mask, __builtin_ia32_vpshld_v16hi,
__builtin_ia32_vpshld_v16hi_mask, __builtin_ia32_vpshld_v8hi,
__builtin_ia32_vpshld_v8hi_mask, __builtin_ia32_vpshld_v16si,
__builtin_ia32_vpshld_v16si_mask, __builtin_ia32_vpshld_v8si,
__builtin_ia32_vpshld_v8si_mask, __builtin_ia32_vpshld_v4si,
__builtin_ia32_vpshld_v4si_mask, __builtin_ia32_vpshld_v8di,
__builtin_ia32_vpshld_v8di_mask, __builtin_ia32_vpshld_v4di,
__builtin_ia32_vpshld_v4di_mask, __builtin_ia32_vpshld_v2di,
__builtin_ia32_vpshld_v2di_mask): New builtins.
config/i386/i386.c (ix86_expand_args_builtin): Handle new types.
config/i386/sse.md (vpshld_<mode><mask_name>): New pattern.

gcc/testsuite/
gcc.target/i386/avx-1.c: Handle new intrinics.
gcc.target/i386/sse-13.c: Ditto.
gcc.target/i386/sse-23.c: Ditto.
gcc.target/i386/avx512f-vpshld-1.c: New test.
gcc.target/i386/avx512f-vpshldd-2.c: Ditto.
gcc.target/i386/avx512f-vpshldq-2.c: Ditto.
gcc.target/i386/avx512vl-vpshld-1.c: Ditto.
gcc.target/i386/avx512vl-vpshldd-2.c: Ditto.
gcc.target/i386/avx512vl-vpshldq-2.c: Ditto.

From-SVN: r255208

re PR fortran/83021 (gfortran segfault in polymorphic assignment)

2017-11-28  Paul Thomas  <pault@gcc.gnu.org>

PR fortran/83021
* resolve.c (resolve_component): Only escape for use assciated
vtypes if the current namespace has no proc_name and is most
particularly block data.

From-SVN: r255202

re PR tree-optimization/80776 (-Wformat-overflow false positive for %d on integer bounded by __builtin_unreachable)

2017-11-28  Richard Biener  <rguenther@suse.de>

PR tree-optimization/80776
* gimple-ssa-evrp-analyze.h (evrp_range_analyzer::set_ssa_range_info):
Declare.
* gimple-ssa-evrp-analyze.c (evrp_range_analyzer::set_ssa_range_info):
New function.
(evrp_range_analyzer::record_ranges_from_incoming_edges):
If the incoming edge is an effective fallthru because the other
edge only reaches a __builtin_unreachable () then record ranges
derived from the controlling condition in SSA info.
(evrp_range_analyzer::record_ranges_from_phis): Use set_ssa_range_info.
(evrp_range_analyzer::record_ranges_from_stmt): Likewise.

* gcc.dg/pr80776-1.c: New testcase.
* gcc.dg/pr80776-2.c: Likewise.

From-SVN: r255201

Makefile.in (SELFTEST_FLAGS): Use nul instead of /dev/null on mingw build hosts.

2017-11-28  Olivier Hainque  <hainque@adacore.com>

* Makefile.in (SELFTEST_FLAGS): Use nul instead of /dev/null
on mingw build hosts.

From-SVN: r255200

Add std::to_address for C++2a (P0653R2)

2017-11-28  Glen Joseph Fernandes  <glenjofe@gmail.com>

* include/bits/ptr_traits.h (to_address): Implement to_address.
* testsuite/20_util/to_address/1.cc: New test.

From-SVN: r255199

re PR debug/81307 (g++.dg/debug/debug9.C -gstabs FAILs)

PR debug/81307
* dbxout.c (dbx_block_with_cold_children): Fix function comment.

From-SVN: r255198

re PR tree-optimization/83141 (SRA and memcpy folding interact badly generating wrong-code)

2017-11-28  Richard Biener  <rguenther@suse.de>

PR middle-end/83141
* gimple-fold.c (gimple_fold_builtin_memory_op): For aggregate
copies generated from memcpy use a character array as reference
type.

From-SVN: r255197

re PR c/83117 (FAIL: gcc.target/x86_64/abi/ms-sysv/ms-sysv.c (test for excess errors))

PR c/83117
* gcc.target/x86_64/abi/ms-sysv/gen.cc (make_do_tests_decl): Drop
const from do_test_{u,v}*.

From-SVN: r255196

Remove Cilk Plus support.

* Makefile.def (target_modules): Remove libcilkrts.
* Makefile.in: Ditto.
* configure: Ditto.
* configure.ac: Ditto.

contrib/
* contrib/gcc_update: Ditto.

gcc/
* Makefile.in (cilkplus.def, cilk-builtins.def, c-family/cilk.o,
c-family/c-cilkplus.o, c-family/array-notation-common.o,
cilk-common.o, cilk.h, cilk-common.c): Remove.
* builtin-types.def
(BT_FN_INT_PTR_PTR_PTR_FTYPE_BT_INT_BT_PTR_BT_PTR_BT_PTR): Remove.
* builtins.c (is_builtin_name): Remove cilkplus condition.
(BUILT_IN_CILK_DETACH, BUILT_IN_CILK_POP_FRAME): Remove.
* builtins.def (DEF_CILK_BUILTIN_STUB, DEF_CILKPLUS_BUILTIN,
cilk-builtins.def, cilkplus.def): Remove.
* cif-code.def (CILK_SPAWN): Remove.
* cilk-builtins.def: Delete.
* cilk-common.c: Ditto.
* cilk.h: Ditto.
* cilkplus.def: Ditto.
* config/darwin.h (fcilkplus): Delete.
* cppbuiltin.c: Ditto.
* doc/extend.texi: Remove cilkplus doc.
* doc/generic.texi: Ditto.
* doc/invoke.texi: Ditto.
* doc/passes.texi: Ditto.
* gcc.c (fcilkplus): Remove.
* gengtype.c (cilk.h): Remove.
* gimple-pretty-print.c (dump_gimple_omp_for): Remove cilkplus support.
* gimple.h (GF_OMP_FOR_KIND_CILKFOR, GF_OMP_FOR_KIND_CILKSIMD): Remove.
* gimplify.c (gimplify_return_expr, maybe_fold_stmt,
gimplify_call_expr, is_gimple_stmt, gimplify_modify_expr,
gimplify_scan_omp_clauses, gimplify_adjust_omp_clauses,
gimplify_omp_for, gimplify_expr): Remove cilkplus conditions.
* ipa-fnsummary.c (ipa_dump_fn_summary, compute_fn_summary,
inline_read_section): Ditto.
* ipa-inline-analysis.c (cilk.h): Remove.
* ira.c (ira_setup_eliminable_regset): Remove cilkplus support.
* lto-wrapper.c (merge_and_complain, append_compiler_options,
append_linker_options): Remove condition for fcilkplus.
* lto/lto-lang.c (cilk.h): Remove.
(lto_init): Remove condition for fcilkplus.
* omp-expand.c (expand_cilk_for_call): Delete.
(expand_omp_taskreg, expand_omp_for_static_chunk,
expand_omp_for): Remove cilkplus
conditions.
(expand_cilk_for): Delete.
* omp-general.c (omp_extract_for_data): Remove cilkplus support.
* omp-low.c (scan_sharing_clauses, create_omp_child_function,
execute_lower_omp, diagnose_sb_0): Ditto.
* omp-simd-clone.c (simd_clone_clauses_extract): Ditto.
* tree-core.h (OMP_CLAUSE__CILK_FOR_COUNT_): Delete.
* tree-nested.c: Ditto.
* tree-pretty-print.c (dump_omp_clause): Remove cilkplus support.
(dump_generic_node): Ditto.
* tree.c (OMP_CLAUSE__CILK_FOR_COUNT_): Delete.
* tree.def (cilk_simd, cilk_for, cilk_spawn_stmt,
cilk_sync_stmt): Delete.
* tree.h (CILK_SPAWN_FN, EXPR_CILK_SPAWN): Delete.

gcc/c-family/
* array-notation-common.c: Delete.
* c-cilkplus.c: Ditto.
* c-common.c (_Cilk_spawn, _Cilk_sync, _Cilk_for): Remove.
* c-common.def (ARRAY_NOTATION_REF): Remove.
* c-common.h (RID_CILK_SPAWN, build_array_notation_expr,
build_array_notation_ref, C_ORT_CILK, c_check_cilk_loop,
c_validate_cilk_plus_loop, cilkplus_an_parts,
cilk_ignorable_spawn_rhs_op,
cilk_recognize_spawn): Remove.
* c-gimplify.c (CILK_SPAWN_STMT): Remove.
* c-omp.c: Remove CILK_SIMD check.
* c-pragma.c: Ditto.
* c-pragma.h: Remove CILK related pragmas.
* c-pretty-print.c (c_pretty_printer::postfix_expression): Remove
ARRAY_NOTATION_REF condition.
(c_pretty_printer::expression): Ditto.
* c.opt (fcilkplus): Remove.
* cilk.c: Delete.

gcc/c/
* Make-lang.in (c/c-array-notation.o): Remove.
* c-array-notation.c: Delete.
* c-decl.c: Remove cilkplus condition.
* c-parser.c (c_parser_cilk_simd, c_parser_cilk_for,
c_parser_cilk_verify_simd, c_parser_array_notation,
c_parser_cilk_clause_vectorlength, c_parser_cilk_grainsize,
c_parser_cilk_simd_fn_vector_attrs,
c_finish_cilk_simd_fn_tokens): Delete.
(c_parser_declaration_or_fndef): Remove cilkplus condition.
(c_parser_direct_declarator_inner): Ditto.
(CILK_SIMD_FN_CLAUSE_MASK): Delete.
(c_parser_attributes, c_parser_compound_statement,
c_parser_statement_after_labels, c_parser_if_statement,
c_parser_switch_statement, c_parser_while_statement,
c_parser_do_statement, c_parser_for_statement,
c_parser_unary_expression, c_parser_postfix_expression,
c_parser_postfix_expression_after_primary,
c_parser_pragma, c_parser_omp_clause_name, c_parser_omp_all_clauses,
c_parser_omp_for_loop,
c_finish_omp_declare_simd): Remove cilkplus support.
* c-typeck.c (build_array_ref, build_function_call_vec,
convert_arguments, lvalue_p, build_compound_expr, c_finish_return,
c_finish_if_stmt, c_finish_loop,
build_binary_op): Remove cilkplus support.

gcc/cp/
* Make-lang.in (cp/cp-array-notation.o, cp/cp-cilkplus.o): Delete.
* call.c (convert_for_arg_passing, build_cxx_call): Remove cilkplus.
* constexpr.c (potential_constant_expression_1): Ditto.
* cp-array-notation.c: Delete.
* cp-cilkplus.c: Ditto.
* cp-cilkplus.h: Ditto.
* cp-gimplify.c (cp_gimplify_expr, cp_fold_r, cp_genericize): Remove
cilkplus condition.
* cp-objcp-common.c (ARRAY_NOTATION_REF): Delete.
* cp-tree.h (cilkplus_an_triplet_types_ok_p): Delete.
* decl.c (grokfndecl, finish_function): Remove cilkplus condition.
* error.c (dump_decl, dump_expr): Remove ARRAY_NOTATION_REF condition.
* lambda.c (cp-cilkplus.h): Remove.
* parser.c (cp_parser_cilk_simd, cp_parser_cilk_for,
cp_parser_cilk_simd_vectorlength): Delete.
(cp_debug_parser, cp_parser_ctor_initializer_opt_and_function_body,
cp_parser_postfix_expression, cp_parser_postfix_open_square_expression,
cp_parser_statement, cp_parser_jump_statement,
cp_parser_direct_declarator,
cp_parser_late_return_type_opt, cp_parser_gnu_attribute_list,
cp_parser_omp_clause_name, cp_parser_omp_clause_aligned,
cp_parser_omp_clause_linear, cp_parser_omp_all_clauses,
cp_parser_omp_flush, cp_parser_omp_for_cond, cp_parser_omp_for_incr,
cp_parser_omp_for_loop_init, cp_parser_omp_for_loop,
cp_parser_omp_declare_simd): Remove cilkplus support.
(CILK_SIMD_FN_CLAUSE_MASK, cp_parser_late_parsing_cilk_simd_fn_info,
cp_parser_cilk_grainsize): Remove.
(cp_parser_pragma, c_parse_file): Remove cilkplus support.
(cp_parser_cilk_simd_vectorlength, cp_parser_cilk_simd_linear,
cp_parser_cilk_simd_clause_name, cp_parser_cilk_simd_all_clauses,
cp_parser_cilk_simd, cp_parser_cilk_for): Remove.
* parser.h (IN_CILK_SIMD_FOR, IN_CILK_SPAWN): Remove.
* pt.c (tsubst_attribute, tsubst_expr, tsubst_copy_and_build): Remove
cilkplus support.
* semantics.c (finish_goto_stmt, begin_while_stmt, finish_do_body,
finish_init_stmt, finish_switch_cond, simplify_aggr_init_expr,
finish_omp_clauses, finish_omp_clauses,
finish_omp_for): Remove cilkplus support.
* tree.c (lvalue_kind): Remove ARRAY_NOTATION_REF conditon.
* typeck.c (cp_build_array_ref, cp_build_compound_expr,
check_return_expr): Remove cilkplus support.

gcc/testsuite/
* c-c++-common/attr-simd-3.c: Delete.
* c-c++-common/cilk-plus/AN/an-if.c: Delete.
* c-c++-common/cilk-plus/AN/array_test1.c: Delete.
* c-c++-common/cilk-plus/AN/array_test2.c: Delete.
* c-c++-common/cilk-plus/AN/array_test_ND.c: Delete.
* c-c++-common/cilk-plus/AN/builtin_fn_custom.c: Delete.
* c-c++-common/cilk-plus/AN/builtin_fn_mutating.c: Delete.
* c-c++-common/cilk-plus/AN/builtin_func_double.c: Delete.
* c-c++-common/cilk-plus/AN/builtin_func_double2.c: Delete.
* c-c++-common/cilk-plus/AN/comma_exp.c: Delete.
* c-c++-common/cilk-plus/AN/conditional.c: Delete.
* c-c++-common/cilk-plus/AN/decl-ptr-colon.c: Delete.
* c-c++-common/cilk-plus/AN/dimensionless-arrays.c: Delete.
* c-c++-common/cilk-plus/AN/exec-once.c: Delete.
* c-c++-common/cilk-plus/AN/exec-once2.c: Delete.
* c-c++-common/cilk-plus/AN/fn_ptr-2.c: Delete.
* c-c++-common/cilk-plus/AN/fn_ptr.c: Delete.
* c-c++-common/cilk-plus/AN/fp_triplet_values.c: Delete.
* c-c++-common/cilk-plus/AN/gather-scatter-errors.c: Delete.
* c-c++-common/cilk-plus/AN/gather_scatter.c: Delete.
* c-c++-common/cilk-plus/AN/if_test.c: Delete.
* c-c++-common/cilk-plus/AN/if_test_errors.c: Delete.
* c-c++-common/cilk-plus/AN/misc.c: Delete.
* c-c++-common/cilk-plus/AN/n-ptr-test.c: Delete.
* c-c++-common/cilk-plus/AN/parser_errors.c: Delete.
* c-c++-common/cilk-plus/AN/parser_errors2.c: Delete.
* c-c++-common/cilk-plus/AN/parser_errors3.c: Delete.
* c-c++-common/cilk-plus/AN/parser_errors4.c: Delete.
* c-c++-common/cilk-plus/AN/pr57457-2.c: Delete.
* c-c++-common/cilk-plus/AN/pr57457.c: Delete.
* c-c++-common/cilk-plus/AN/pr57490.c: Delete.
* c-c++-common/cilk-plus/AN/pr57541-2.c: Delete.
* c-c++-common/cilk-plus/AN/pr57541.c: Delete.
* c-c++-common/cilk-plus/AN/pr57577.c: Delete.
* c-c++-common/cilk-plus/AN/pr58942.c: Delete.
* c-c++-common/cilk-plus/AN/pr61191.c: Delete.
* c-c++-common/cilk-plus/AN/pr61455-2.c: Delete.
* c-c++-common/cilk-plus/AN/pr61455.c: Delete.
* c-c++-common/cilk-plus/AN/pr61962.c: Delete.
* c-c++-common/cilk-plus/AN/pr61963.c: Delete.
* c-c++-common/cilk-plus/AN/pr62008.c: Delete.
* c-c++-common/cilk-plus/AN/pr63884.c: Delete.
* c-c++-common/cilk-plus/AN/rank_mismatch.c: Delete.
* c-c++-common/cilk-plus/AN/rank_mismatch2.c: Delete.
* c-c++-common/cilk-plus/AN/rank_mismatch3.c: Delete.
* c-c++-common/cilk-plus/AN/sec_implicit.c: Delete.
* c-c++-common/cilk-plus/AN/sec_implicit2.c: Delete.
* c-c++-common/cilk-plus/AN/sec_implicit_ex.c: Delete.
* c-c++-common/cilk-plus/AN/sec_reduce_ind_same_value.c: Delete.
* c-c++-common/cilk-plus/AN/sec_reduce_max_min_ind.c: Delete.
* c-c++-common/cilk-plus/AN/sec_reduce_return.c: Delete.
* c-c++-common/cilk-plus/AN/side-effects-1.c: Delete.
* c-c++-common/cilk-plus/AN/test_builtin_return.c: Delete.
* c-c++-common/cilk-plus/AN/test_sec_limits.c: Delete.
* c-c++-common/cilk-plus/AN/tst_lngth.c: Delete.
* c-c++-common/cilk-plus/AN/vla.c: Delete.
* c-c++-common/cilk-plus/CK/Wparentheses-1.c: Delete.
* c-c++-common/cilk-plus/CK/cilk-for-2.c: Delete.
* c-c++-common/cilk-plus/CK/cilk-for-3.c: Delete.
* c-c++-common/cilk-plus/CK/cilk-fors.c: Delete.
* c-c++-common/cilk-plus/CK/cilk_for_errors.c: Delete.
* c-c++-common/cilk-plus/CK/cilk_for_grain.c: Delete.
* c-c++-common/cilk-plus/CK/cilk_for_grain_errors.c: Delete.
* c-c++-common/cilk-plus/CK/cilk_for_ptr_iter.c: Delete.
* c-c++-common/cilk-plus/CK/compound_cilk_spawn.c: Delete.
* c-c++-common/cilk-plus/CK/concec_cilk_spawn.c: Delete.
* c-c++-common/cilk-plus/CK/errors.c: Delete.
* c-c++-common/cilk-plus/CK/fib.c: Delete.
* c-c++-common/cilk-plus/CK/fib_init_expr_xy.c: Delete.
* c-c++-common/cilk-plus/CK/fib_no_return.c: Delete.
* c-c++-common/cilk-plus/CK/fib_no_sync.c: Delete.
* c-c++-common/cilk-plus/CK/invalid_spawns.c: Delete.
* c-c++-common/cilk-plus/CK/invalid_sync.c: Delete.c
* c-c++-common/cilk-plus/CK/nested_cilk_for.c: Delete.
* c-c++-common/cilk-plus/CK/no_args_error.c: Delete.
* c-c++-common/cilk-plus/CK/pr59631.c: Delete.
* c-c++-common/cilk-plus/CK/pr60197-2.c: Delete.
* c-c++-common/cilk-plus/CK/pr60197.c: Delete.
* c-c++-common/cilk-plus/CK/pr60469.c: Delete.
* c-c++-common/cilk-plus/CK/pr60586.c: Delete.
* c-c++-common/cilk-plus/CK/pr63307.c: Delete.
* c-c++-common/cilk-plus/CK/pr69826-1.c: Delete.
* c-c++-common/cilk-plus/CK/pr69826-2.c: Delete.
* c-c++-common/cilk-plus/CK/pr79428-4.c: Delete.
* c-c++-common/cilk-plus/CK/pr79428-7.c: Delete.
* c-c++-common/cilk-plus/CK/spawn_in_return.c: Delete.
* c-c++-common/cilk-plus/CK/spawnee_inline.c: Delete.
* c-c++-common/cilk-plus/CK/spawner_inline.c: Delete.
* c-c++-common/cilk-plus/CK/spawning_arg.c: Delete.
* c-c++-common/cilk-plus/CK/steal_check.c: Delete.
* c-c++-common/cilk-plus/CK/sync_wo_spawn.c: Delete.
* c-c++-common/cilk-plus/CK/test__cilk.c: Delete.
* c-c++-common/cilk-plus/CK/varargs_test.c: Delete.
* c-c++-common/cilk-plus/PS/Wparentheses-1.c: Delete.
* c-c++-common/cilk-plus/PS/body.c: Delete.
* c-c++-common/cilk-plus/PS/clauses1.c: Delete.
* c-c++-common/cilk-plus/PS/clauses2.c: Delete.
* c-c++-common/cilk-plus/PS/clauses3.c: Delete.
* c-c++-common/cilk-plus/PS/clauses4.c: Delete.
* c-c++-common/cilk-plus/PS/for1.c: Delete.
* c-c++-common/cilk-plus/PS/for2.c: Delete.
* c-c++-common/cilk-plus/PS/for3.c: Delete.
* c-c++-common/cilk-plus/PS/pr69363.c: Delete.
* c-c++-common/cilk-plus/PS/reduction-1.c: Delete.
* c-c++-common/cilk-plus/PS/reduction-2.c: Delete.
* c-c++-common/cilk-plus/PS/reduction-3.c: Delete.
* c-c++-common/cilk-plus/PS/run-1.c: Delete.
* c-c++-common/cilk-plus/PS/safelen.c: Delete.
* c-c++-common/cilk-plus/PS/vectorlength-2.c: Delete.
* c-c++-common/cilk-plus/PS/vectorlength-3.c: Delete.
* c-c++-common/cilk-plus/PS/vectorlength.c: Delete.
* c-c++-common/cilk-plus/SE/ef_error.c: Delete.
* c-c++-common/cilk-plus/SE/ef_error2.c: Delete.
* c-c++-common/cilk-plus/SE/ef_error3.c: Delete.
* c-c++-common/cilk-plus/SE/ef_test.c: Delete.
* c-c++-common/cilk-plus/SE/ef_test2.c: Delete.
* c-c++-common/cilk-plus/SE/vlength_errors.c: Delete.
* g++.dg/cilk-plus/AN/array_function.c: Delete.
* g++.dg/cilk-plus/AN/array_test1_tplt.c: Delete.
* g++.dg/cilk-plus/AN/array_test2_tplt.c: Delete.
* g++.dg/cilk-plus/AN/array_test_ND_tplt.c: Delete.
* g++.dg/cilk-plus/AN/braced_list.c: Delete.
* g++.dg/cilk-plus/AN/builtin_fn_custom_tplt.c: Delete.
* g++.dg/cilk-plus/AN/builtin_fn_mutating_tplt.c: Delete.
* g++.dg/cilk-plus/AN/fp_triplet_values_tplt.c: Delete.
* g++.dg/cilk-plus/AN/postincr_test.c: Delete.
* g++.dg/cilk-plus/AN/preincr_test.c: Delete.
* g++.dg/cilk-plus/CK/catch_exc.c: Delete.
* g++.dg/cilk-plus/CK/cf3.c: Delete.
* g++.dg/cilk-plus/CK/cilk-for-tplt.c: Delete.
* g++.dg/cilk-plus/CK/const_spawn.c: Delete.
* g++.dg/cilk-plus/CK/fib-opr-overload.c: Delete.
* g++.dg/cilk-plus/CK/fib-tplt.c: Delete.
* g++.dg/cilk-plus/CK/for1.c: Delete.
* g++.dg/cilk-plus/CK/lambda_spawns.c: Delete.
* g++.dg/cilk-plus/CK/lambda_spawns_tplt.c: Delete.
* g++.dg/cilk-plus/CK/pr60586.c: Delete.
* g++.dg/cilk-plus/CK/pr66326.c: Delete.
* g++.dg/cilk-plus/CK/pr68001.c: Delete.
* g++.dg/cilk-plus/CK/pr68997.c: Delete.
* g++.dg/cilk-plus/CK/pr69024.c: Delete.
* g++.dg/cilk-plus/CK/pr69048.c: Delete.
* g++.dg/cilk-plus/CK/pr69267.c: Delete.
* g++.dg/cilk-plus/CK/pr80038.c: Delete.
* g++.dg/cilk-plus/CK/stl_iter.c: Delete.
* g++.dg/cilk-plus/CK/stl_rev_iter.c: Delete.
* g++.dg/cilk-plus/CK/stl_test.c: Delete.
* g++.dg/cilk-plus/cilk-plus.exp
* g++.dg/cilk-plus/ef_test.C: Delete.
* g++.dg/cilk-plus/for.C: Delete.
* g++.dg/cilk-plus/for2.C: Delete.
* g++.dg/cilk-plus/for3.C: Delete.
* g++.dg/cilk-plus/for4.C: Delete.
* g++.dg/cilk-plus/pr60967.C: Delete.
* g++.dg/cilk-plus/pr69028.C: Delete.
* g++.dg/cilk-plus/pr70565.C: Delete.
* g++.dg/pr57662.C: Delete.
* gcc.dg/cilk-plus/cilk-plus.exp
* gcc.dg/cilk-plus/for1.c: Delete.
* gcc.dg/cilk-plus/for2.c: Delete.
* gcc.dg/cilk-plus/jump-openmp.c: Delete.
* gcc.dg/cilk-plus/jump.c: Delete.
* gcc.dg/cilk-plus/pr69798-1.c: Delete.
* gcc.dg/cilk-plus/pr69798-2.c: Delete.
* gcc.dg/cilk-plus/pr78306.c: Delete.
* gcc.dg/cilk-plus/pr79116.c: Delete.
* gcc.dg/graphite/id-28.c: Delete.
* lib/cilk-plus-dg.exp: Delete.
* lib/target-supports.exp (cilkplus_runtime): Delete.

Co-Authored-By: Sebastian Peryt <sebastian.peryt@intel.com>
From-SVN: r255195

[Patch AArch64] Fixup floating point division with -march=armv8-a+nosimd

The canonical examples is :

    double
    foo (double x, double y)
      {
        return x / y;
      }

    with -march=armv8-a+nosimd

generates a function that calls __divdf3. Ofcourse on AArch64 we don't
have any software floating point and this causes issues.

There is also a problem in +nosimd that has existed since the dawn of
time in the port with respect to long doubles (128 bit floating
point), here the ABI and the compiler expect the presence of the SIMD
unit as these parameters are passed in the vector registers. Thus
while +nosimd tries to prevent the use of SIMD instructions in the
compile we don't get this right as we end up using ldr qN / str qN
instructions and even there I think things go wrong in a simple
example that I tried.

Is that sufficient to consider marking +nosimd as deprecated in GCC-8
and remove this in a future release ?

That is not a subject for this patch but something separate but I
would like to put this into trunk and the release
branches. Bootstrapped and regression tested on my aarch64 desktop.

Ok ?

From-SVN: r255194

re PR rtl-optimization/81020 (wrong code with -O -fno-tree-bit-ccp -fno-tree-coalesce-vars -fno-tree-vrp)

PR rtl-optimization/81020
* gcc.dg/pr81020.c: New test.

From-SVN: r255193

tree.def (SWITCH_EXPR): Change from 3 operand to 2 operand tree.

* tree.def (SWITCH_EXPR): Change from 3 operand to 2 operand tree.
Adjust comment.
* tree.h (SWITCH_LABELS): Remove.
* gimplify.c (gimplify_switch_expr): Don't test SWITCH_LABELS,
assert SWITCH_BODY is non-NULL.
* tree-pretty-print.c (dump_generic_node): Remove SWITCH_LABELS
handling.
* tree.c (block_may_fallthru): Always return true; for SWITCH_EXPR.
c/
* c-typeck.c (c_start_case): Build SWITCH_EXPR using build2 instead
of build3.
cp/
* cp-gimplify.c (genericize_switch_stmt): Build SWITCH_EXPR using
build2_loc instead of build3_loc.
ada/
* gcc-interface/trans.c (Case_Statement_to_gnu): Build SWITCH_EXPR
using build2 instead of build3.
jit/
* jit-playback.c (add_switch): Build SWITCH_EXPR using build2 instead
of build3.  Formatting fixes.  Adjust funciton comment.
fortran/
* trans-decl.c (gfc_trans_entry_master_switch): Build SWITCH_EXPR
using fold_build2_loc instead of fold_build3_loc.
* trans-io.c (io_result): Likewise.
* trans-stmt.c (gfc_trans_integer_select, gfc_trans_character_select):
Likewise.
go/
* go-gcc.cc (Gcc_backend::switch_statement): Build SWITCH_EXPR using
build2_loc instead of build3_loc.
brig/
* brigfrontend/brig-branch-inst-handler.cc
(brig_branch_inst_handler::operator): Build SWITCH_EXPR using build2
instead of build3.

From-SVN: r255192