gcc.git
5 years agoAdd a target hook for getting an ABI from a function type
Richard Sandiford [Mon, 30 Sep 2019 16:19:43 +0000 (16:19 +0000)]
Add a target hook for getting an ABI from a function type

This patch adds a target hook that allows targets to return
the ABI associated with a particular function type.  Generally,
when multiple ABIs are in use, it must be possible to tell from
a function type and its attributes which ABI it is using.

2019-09-30  Richard Sandiford  <richard.sandiford@arm.com>

gcc/
* target.def (fntype_abi): New target hook.
* doc/tm.texi.in (TARGET_FNTYPE_ABI): Likewise.
* doc/tm.texi: Regenerate.
* target.h (predefined_function_abi): Declare.
* function-abi.cc (fntype_abi): Call targetm.calls.fntype_abi,
if defined.
* config/aarch64/aarch64.h (ARM_PCS_SIMD): New arm_pcs value.
* config/aarch64/aarch64.c: Include function-abi.h.
(aarch64_simd_abi, aarch64_fntype_abi): New functions.
(TARGET_FNTYPE_ABI): Define.

From-SVN: r276308

5 years agoAdd function_abi.{h,cc}
Richard Sandiford [Mon, 30 Sep 2019 16:19:38 +0000 (16:19 +0000)]
Add function_abi.{h,cc}

This patch adds new structures and functions for handling
multiple ABIs in a translation unit.  The structures are:

- predefined_function_abi: describes a static, predefined ABI
- function_abi: describes either a predefined ABI or a local
  variant of one (e.g. taking -fipa-ra into account)

The patch adds functions for getting the ABI from a given type
or decl; a later patch will also add a function for getting the
ABI of the target of a call insn.

Although ABIs are about much more than call-clobber/saved choices,
I wanted to keep the name general in case we add more ABI-related
information in future.

2019-09-30  Richard Sandiford  <richard.sandiford@arm.com>

gcc/
* Makefile.in (OBJS): Add function-abi.o.
(GTFILES): Add function-abi.h.
* function-abi.cc: New file.
* function-abi.h: Likewise.
* emit-rtl.h (rtl_data::abi): New field.
* function.c: Include function-abi.h.
(prepare_function_start): Initialize crtl->abi.
* read-rtl-function.c: Include regs.h and function-abi.h.
(read_rtl_function_body): Initialize crtl->abi.
(read_rtl_function_body_from_file_range): Likewise.
* reginfo.c: Include function-abi.h.
(init_reg_sets_1): Initialize default_function_abi.
(globalize_reg): Call add_full_reg_clobber for each predefined ABI
when making a register global.
* target-globals.h (this_target_function_abi_info): Declare.
(target_globals::function_abi_info): New field.
(restore_target_globals): Copy it.
* target-globals.c: Include function-abi.h.
(default_target_globals): Initialize the function_abi_info field.
(target_globals): Allocate it.
(save_target_globals): Free it.

From-SVN: r276307

5 years agoFix compile time warning about building the FRV backend by adding missing break state...
Nick Clifton [Mon, 30 Sep 2019 15:27:14 +0000 (15:27 +0000)]
Fix compile time warning about building the FRV backend by adding missing break statements to the switches in frv_register_move_cost.

PR target/85978
* config/frv/frv.c (frv_register_move_cost): Add break statements
to avoid falling through to the wrong cases.  Tidy code.

From-SVN: r276306

5 years ago[AArch64] Strengthen aarch64_hard_regno_call_part_clobbered
Richard Sandiford [Mon, 30 Sep 2019 15:23:30 +0000 (15:23 +0000)]
[AArch64] Strengthen aarch64_hard_regno_call_part_clobbered

The aarch64_vector_pcs handling in aarch64_hard_regno_call_part_clobbered
checks whether the mode might be bigger than 16 bytes, since on SVE
targets the (non-SVE) vector PCS only guarantees that the low 16 bytes
are preserved.  But for multi-register modes, we should instead test
whether each single-register part might be bigger than 16 bytes.
(The size is always divided evenly between registers.)

The testcase uses XImode as an example where this helps.

2019-09-30  Richard Sandiford  <richard.sandiford@arm.com>

gcc/
* config/aarch64/aarch64.c (aarch64_hard_regno_call_part_clobbered):
For multi-registers modes, test how big each register part is.

gcc/testsuite/
* gcc.target/aarch64/torture/simd-abi-8.c: New test.

From-SVN: r276305

5 years agoRemove the iq2000_select_section function the iq2000 backend - it never provided...
Nick Clifton [Mon, 30 Sep 2019 15:18:14 +0000 (15:18 +0000)]
Remove the iq2000_select_section function the iq2000 backend - it never provided any useful functionality.

PR target/59205
* config/iq2000/iq2000.c (iq2000_select_section): Delete.
(TARGET_ASM_SELECT_SECTION): Remove definition.
(TARGET_HAVE_SWITCHABLE_BSS_SECTIONS): Allow definition.

From-SVN: r276304

5 years agoIntroduce rtx_alloca, alloca_raw_REG and alloca_rtx_fmt_*
Ilya Leoshkevich [Mon, 30 Sep 2019 14:56:33 +0000 (14:56 +0000)]
Introduce rtx_alloca, alloca_raw_REG and alloca_rtx_fmt_*

When one passes short-lived fake rtxes to backends in order to test
their capabilities, it might be beneficial to allocate these rtxes on
stack in order to reduce the load on GC.

Provide macro counterparts of some of the gen_* functions for that
purpose.

gcc/ChangeLog:

2019-09-30  Ilya Leoshkevich  <iii@linux.ibm.com>

* emit-rtl.c (init_raw_REG): New function.
(gen_raw_REG): Use init_raw_REG.
* gengenrtl.c (gendef): Emit init_* functions and alloca_*
macros.
* rtl.c (rtx_alloc_stat_v): Use rtx_init.
* rtl.h (rtx_init): New function.
(rtx_alloca): New function.
(init_raw_REG): New function.
(alloca_raw_REG): New macro.

From-SVN: r276303

5 years ago[C] Print ", ..." rather than ", ..." in diagnostics
Richard Sandiford [Mon, 30 Sep 2019 14:49:07 +0000 (14:49 +0000)]
[C] Print ", ..." rather than ",  ..." in diagnostics

pp_separate_with inserts a space after the separator, so there's
no need to add whitespace before "..." as well.

2019-09-30  Richard Sandiford  <richard.sandiford@arm.com>

gcc/c-family/
* c-pretty-print.c (pp_c_parameter_type_list): Avoid printing
two spaces between a comma and "...".

gcc/testsuite/
* gcc.dg/Wincompatible-pointer-types-1.c (f1): Expect only one
space between the comma and "...".

From-SVN: r276302

5 years agolibgomp_g.h: Include stdint.h instead of gstdint.h.
Kwok Cheung Yeung [Mon, 30 Sep 2019 14:16:34 +0000 (14:16 +0000)]
libgomp_g.h: Include stdint.h instead of gstdint.h.

2019-09-30  Kwok Cheung Yeung  <kcy@codesourcery.com>

        * libgomp_g.h: Include stdint.h instead of gstdint.h.

From-SVN: r276301

5 years agoAdd initial support for prefixed/PC-relative addressing.
Michael Meissner [Mon, 30 Sep 2019 13:49:13 +0000 (13:49 +0000)]
Add initial support for prefixed/PC-relative addressing.

2019-09-30  Michael Meissner  <meissner@linux.ibm.com>

* config/rs6000/predicates.md (pcrel_address): Delete predicate.
(pcrel_local_address): Replace pcrel_address predicate, use the
new function address_to_insn_form.
(pcrel_external_address): Replace with new implementation using
address_to_insn_form..
(prefixed_mem_operand): Delete predicate which is now unused.
(pcrel_external_mem_operand): Delete predicate which is now
unused.
* config/rs6000/rs6000-protos.h (enum insn_form): New
enumeration.
(enum non_prefixed): New enumeration.
(address_to_insn_form): New declaration.
(prefixed_load_p): New declaration.
(prefixed_store_p): New declaration.
(prefixed_paddi_p): New declaration.
(rs6000_asm_output_opcode): New declaration.
(rs6000_final_prescan_insn): Move declaration and update calling
signature.
(address_is_prefixed): New helper inline function.
* config/rs6000/rs6000.c(print_operand_address): Check for either
PC-relative local symbols or PC-relative external symbols.
(rs6000_emit_move): Support loading PC-relative addresses.
(mode_supports_prefixed_address_p): Delete, no longer used.
(rs6000_prefixed_address_mode_p): Delete, no longer used.
(address_to_insn_form): New function to decode an address format.
(reg_to_non_prefixed): New function to identify what the
non-prefixed memory instruction format is for a register.
(prefixed_load_p): New function to identify prefixed loads.
(prefixed_store_p): New function to identify prefixed stores.
(prefixed_paddi_p): New function to identify prefixed load
immediates.
(next_insn_prefixed_p): New static state variable.
(rs6000_final_prescan_insn): New function to determine if an insn
uses a prefixed instruction.
(rs6000_asm_output_opcode): New function to emit 'p' in front of a
prefixed instruction.
* config/rs6000/rs6000.h (FINAL_PRESCAN_INSN): New target hook.
(ASM_OUTPUT_OPCODE): New target hook.
* config/rs6000/rs6000.md (prefixed): New insn attribute for
prefixed instructions.
(prefixed_length): New insn attribute for the size of prefixed
instructions.
(non_prefixed_length): New insn attribute for the size of
non-prefixed instructions.
(pcrel_local_addr): New insn to load up a local PC-relative
address.
(pcrel_extern_addr): New insn to load up an external PC-relative
address.
(mov<mode>_64bit_dm): Split the alternatives for loading 0.0 to a
GPR and loading a 128-bit floating point type to a GPR.

From-SVN: r276300

5 years agogimple.c (gimple_get_lhs): For PHIs return the result.
Richard Biener [Mon, 30 Sep 2019 11:59:16 +0000 (11:59 +0000)]
gimple.c (gimple_get_lhs): For PHIs return the result.

2019-09-30  Richard Biener  <rguenther@suse.de>

* gimple.c (gimple_get_lhs): For PHIs return the result.
* tree-vectorizer.h (vectorizable_live_operation): Also get the
SLP instance as argument.
* tree-vect-loop.c (vect_analyze_loop_operations): Also handle
double-reduction PHIs with vectorizable_lc_phi.
(vect_analyze_loop_operations): Adjust.
(vect_create_epilog_for_reduction): Remove all code not dealing
with reduction LC PHI or epilogue generation.
(vectorizable_live_operation): Call vect_create_epilog_for_reduction
for live stmts of reductions.
* tree-vect-stmts.c (vectorizable_condition): When !for_reduction
do not handle defs that are not vect_internal_def.
(can_vectorize_live_stmts): Adjust.
(vect_analyze_stmt): When the vectorized stmt defined a value
used on backedges adjust the backedge uses of vectorized PHIs.

From-SVN: r276299

5 years agoImplement LWG 3255 for std::span constructors
Jonathan Wakely [Mon, 30 Sep 2019 11:52:08 +0000 (12:52 +0100)]
Implement LWG 3255 for std::span constructors

Also fix the constraints on span(Container&) and span(const Container&)
constructors so that they aren't used for const spans or const arrays.

* include/std/span (span(element_type(&)[N]))
(span(array<value_type, N>&), span(const array<value_type, N>&)):
Deduce array element type to allow safe const conversions (LWG 3255).
[!_GLIBCXX_P1394] (span(Container&), span(const Container&)): Use
remove_cv_t on arguments to __is_std_span and __is_std_array.
* testsuite/23_containers/span/lwg3255.cc: New test.

From-SVN: r276298

5 years agoPR libstdc++/77936 remove unused variable
Jonathan Wakely [Mon, 30 Sep 2019 11:52:01 +0000 (12:52 +0100)]
PR libstdc++/77936 remove unused variable

PR libstdc++/77936
* include/parallel/checkers.h (__is_sorted): Remove unused variable.

From-SVN: r276297

5 years ago[PR 91853] Prevent IPA-SRA ICEs on type-mismatched calls
Martin Jambor [Mon, 30 Sep 2019 08:18:59 +0000 (10:18 +0200)]
[PR 91853] Prevent IPA-SRA ICEs on type-mismatched calls

2019-09-30  Martin Jambor  <mjambor@suse.cz>

PR ipa/91853
* tree-inline.c (force_value_to_type): New function.
(setup_one_parameter): Use force_value_to_type to convert type.
* tree-inline.c (force_value_to_type): Declare.
* ipa-param-manipulation.c (ipa_param_adjustments::modify_call): Deal
with register type mismatches.

testsuite/
* gcc.dg/ipa/pr91853.c: New test.

From-SVN: r276296

5 years agoconfig.gcc: Use the secure-plt on FreeBSD 13 and upwards for 32-bit PowerPC.
Andreas Tobler [Mon, 30 Sep 2019 07:54:52 +0000 (09:54 +0200)]
config.gcc: Use the secure-plt on FreeBSD 13 and upwards for 32-bit PowerPC.

2019-09-30  Andreas Tobler  <andreast@gcc.gnu.org>

* config.gcc: Use the secure-plt on FreeBSD 13 and upwards for
32-bit PowerPC.
Define TARGET_FREEBSD32_SECURE_PLT for 64-bit PowerPC.
* config/rs6000/t-freebsd64: Make use of the above define and build
the 32-bit libraries with secure-plt.

From-SVN: r276295

5 years agore PR target/91931 (ICE in decompose, at rtl.h:2277)
Jakub Jelinek [Mon, 30 Sep 2019 07:26:58 +0000 (09:26 +0200)]
re PR target/91931 (ICE in decompose, at rtl.h:2277)

PR target/91931
* config/i386/i386-expand.c (ix86_expand_adjust_ufix_to_sfix_si): Use
gen_int_mode instead of GEN_INT.

* gcc.target/i386/pr91931.c: New test.

From-SVN: r276294

5 years agoDaily bump.
GCC Administrator [Mon, 30 Sep 2019 00:16:51 +0000 (00:16 +0000)]
Daily bump.

From-SVN: r276276

5 years agore PR fortran/91641 (ICE in gfc_conv_is_contiguous_expr, at fortran/trans-intrinsic...
Steven G. Kargl [Sun, 29 Sep 2019 19:12:08 +0000 (19:12 +0000)]
re PR fortran/91641 (ICE in gfc_conv_is_contiguous_expr, at fortran/trans-intrinsic.c:2857)

2019-09-29  Steven G. Kargl  <kargl@gcc.gnu.org>

PR fortran/91641
* check.c (gfc_check_is_contiguous): null() cannot be an actual
argument to is_contiguous().

2019-09-29  Steven G. Kargl  <kargl@gcc.gnu.org>

PR fortran/91641
* gfortran.dg/pr91641.f90: New test.

From-SVN: r276272

5 years ago[Darwin, PPC, Mode Iterators 5/n] Update macho_low.
Iain Sandoe [Sun, 29 Sep 2019 19:09:13 +0000 (19:09 +0000)]
[Darwin, PPC, Mode Iterators 5/n] Update macho_low.

Replace the define_expand and two define_insns with a single
@macho_low_<mode> and update callers.

gcc/ChangeLog:

2019-09-29  Iain Sandoe  <iain@sandoe.co.uk>

* config/darwin.c (gen_macho_low):Amend to include the mode
argument.
(machopic_indirect_data_reference): Amend gen_macho_low call
to include mode argument
* config/rs6000/rs6000.c (emit_move): Likewise. Amend a comment.
* config/rs6000/darwin.md (@macho_low_<mode>): New, replaces
the macho_high expander and two define_insn entries.

From-SVN: r276271

5 years agore PR fortran/91714 (Accepts type statement without delimiter in free form)
Steven G. Kargl [Sun, 29 Sep 2019 16:19:58 +0000 (16:19 +0000)]
re PR fortran/91714 (Accepts type statement without delimiter in free form)

2019-09-29  Steven G. Kargl  <kargl@gcc.gnu.org>

PR fortran/91714
* decl.c (gfc_match_decl_type_spec):  Issue errors for a few
mangled types.

2019-09-29  Steven G. Kargl  <kargl@gcc.gnu.org>

PR fortran/91714
* gfortran.dg/dec_type_print_3.f90: Update dg-error regex.
* gfortran.dg/pr91714.f90: New test.

From-SVN: r276270

5 years agore PR fortran/91726 (ICE in gfc_conv_array_ref, at fortran/trans-array.c:3612)
Paul Thomas [Sun, 29 Sep 2019 10:12:42 +0000 (10:12 +0000)]
re PR fortran/91726 (ICE in gfc_conv_array_ref, at fortran/trans-array.c:3612)

2019-09-29  Paul Thomas  <pault@gcc.gnu.org>

PR fortran/91726
* resolve.c (gfc_expr_to_initialize): Bail out with a copy of
the original expression if the array ref is a scalar and the
array_spec has corank.
* trans-array.c (gfc_conv_array_ref): Such expressions are OK
even if the array ref codimen is zero.
* trans-expr.c (gfc_get_class_from_expr): New function taken
from gfc_get_vptr_from_expr.
(gfc_get_vptr_from_expr): Call new function.
* trans-stmt.c (trans_associate_var): If one of these is a
target expression, extract the class expression from the target
and copy its fields to a new target variable.
* trans.h : Add prototype for gfc_get_class_from_expr.

2019-09-29  Paul Thomas  <pault@gcc.gnu.org>

PR fortran/91726
* gfortran.dg/coarray_poly_9.f90 : New test.

From-SVN: r276269

5 years agore PR bootstrap/90543 (Build failure on MINGW for gcc-9.1.0)
Jakub Jelinek [Sun, 29 Sep 2019 10:06:40 +0000 (12:06 +0200)]
re PR bootstrap/90543 (Build failure on MINGW for gcc-9.1.0)

PR bootstrap/90543
* optc-save-gen.awk: Fix up printing string option differences.

From-SVN: r276268

5 years agovec_perm cost to 1 for non-Power7 VSX architectures
Kewen Lin [Sun, 29 Sep 2019 09:18:22 +0000 (09:18 +0000)]
vec_perm cost to 1 for non-Power7 VSX architectures

gcc/ChangeLog

2019-09-29  Kewen Lin  <linkw@gcc.gnu.org>

    * config/rs6000/rs6000.c (rs6000_builtin_vectorization_cost): Lower
    vec_perm cost to 1 for non-Power7 VSX architectures.

From-SVN: r276267

5 years agoThis patch is to add the support for float from/to long conversion
Kewen Lin [Sun, 29 Sep 2019 05:08:14 +0000 (05:08 +0000)]
This patch is to add the support for float from/to long conversion
vectorization on port rs6000.

gcc/ChangeLog

2019-09-29  Kewen Lin  <linkw@gcc.gnu.org>

    * config/rs6000/vsx.md (vec_pack[su]_float_v2di): New define_expand.
    (vec_unpack_[su]fix_trunc_hi_v4sf): Likewise.
    (vec_unpack_[su]fix_trunc_lo_v4sf): Likewise.

gcc/testsuite/ChangeLog

2019-09-29  Kewen Lin  <linkw@gcc.gnu.org>

    * gcc.target/powerpc/conv-vectorize-1.c: New test.
    * gcc.target/powerpc/conv-vectorize-2.c: New test.

From-SVN: r276266

5 years agore PR fortran/91802 (ICE in mio_name_expr_t, at fortran/module.c:2141)
Jerry DeLisle [Sun, 29 Sep 2019 02:35:58 +0000 (02:35 +0000)]
re PR fortran/91802 (ICE in mio_name_expr_t, at fortran/module.c:2141)

2019-09-28  Jerry DeLisle  <jvdelisle@gcc.ngu.org>

PR fortran/91802
* decl.c (attr_decl1): Return MATCH_ERROR without free to avoid
bad expression type in free_expr0() ICE in rank+corank check.

From-SVN: r276265

5 years agoDaily bump.
GCC Administrator [Sun, 29 Sep 2019 00:16:32 +0000 (00:16 +0000)]
Daily bump.

From-SVN: r276264

5 years agostl_algo.h (merge): Fix documentation.
François Dumont [Sat, 28 Sep 2019 21:11:55 +0000 (21:11 +0000)]
stl_algo.h (merge): Fix documentation.

2019-09-28  François Dumont  <fdumont@gcc.gnu.org>

* include/bits/stl_algo.h (merge): Fix documentation.
* include/debug/functions.h (__check_sorted_aux): Add C++20 constexpr.
(__check_sorted): Likewise and remove nested irreflexive check.
(__check_sorted_set_aux, __check_sorted_set): Add C++20 constexpr.
(__check_partitioned_lower, __check_partitioned_upper): Likewise.
(_Irreflexive_checker::_S_is_valid): Likewise.
(__is_irreflexive, __is_irreflexive_pred): Likewise.
* include/debug/helper_functions.h (__get_distance): Add constexpr.
(__valid_range_aux): Add C++20 constexpr.
(__valid_range(_Iter, _Iter, _Distance_traits<_Iter>::__type&)):
Likewise and add std::is_constant_evaluated check.
(__valid_range_aux(_Iter, _Iter, std::input_iterator_tag)): New.
(__valid_range_aux(_Iter, _Iter, std::random_accss_iterator_tag)): New.
(__valid_range_aux(_Integral, _Integral, std::__true_type)): New,
use latter.
(__valid_range(_Iter, _Iter)): Adapt to use latter, add constexpr and
__builtin_is_contant_evaludated check..
(__can_advance, __base): Add constexpr.
* include/debug/macros.h [_GLIBCXX_HAVE_BUILTIN_IS_CONSTANT_EVALUATED]
(_GLIBCXX_DEBUG_VERIFY_COND_AT): New.
(__glibcxx_check_sorted): Use __glibcxx_check_irreflexive.
(__glibcxx_check_sorted_pred): Use __glibcxx_check_irreflexive_pred.
* testsuite/25_algorithms/binary_search/constexpr.cc: Use irreflexive
std::less.
* testsuite/25_algorithms/is_sorted/constexpr.cc: Likewise.
* testsuite/25_algorithms/merge/constexpr.cc: Fix order in camm. Fix
lambda to be irreflexive.

From-SVN: r276260

5 years ago[Darwin, PPC, Mode Iterators 4/n] Update macho_high.
Iain Sandoe [Sat, 28 Sep 2019 19:32:31 +0000 (19:32 +0000)]
[Darwin, PPC, Mode Iterators 4/n] Update macho_high.

Drop the expander and use a mode iterator on the define_insn
for @macho_high_<mode> instead.

gcc/ChangeLog:

2019-09-28  Iain Sandoe  <iain@sandoe.co.uk>

* config/darwin.c (gen_macho_high): Amend to include the mode
argument.
(machopic_indirect_data_reference): Amend gen_macho_high call
to include mode argument.
(machopic_legitimize_pic_address): Likewise.
* config/rs6000/rs6000.c (rs6000_legitimize_address):
* config/rs6000/darwin.md (@macho_high_<mode>): New, replaces
the macho_high expander and two define_insn entries.

From-SVN: r276256

5 years agore PR libfortran/91593 (Implicit enum conversions in libgfortran/io/transfer.c)
Jerry DeLisle [Sat, 28 Sep 2019 19:14:47 +0000 (19:14 +0000)]
re PR libfortran/91593 (Implicit enum conversions in libgfortran/io/transfer.c)

2019-09-28  Jerry DeLisle  <jvdelisle@gcc.gnu.org>

PR libfortran/91593
* io/io.h: Add gcc_unreachable().
* io/transfer.c (file_mode, current_mode,
formatted_transfer_scalar_read, formatted_transfer_scalar_write,
pre_position, next_record_r, next_record_w): Add and use
FORMATTED_UNSPECIFIED to enumeration.

From-SVN: r276255

5 years agore PR fortran/91802 (ICE in mio_name_expr_t, at fortran/module.c:2141)
Steven G. Kargl [Sat, 28 Sep 2019 17:10:34 +0000 (17:10 +0000)]
re PR fortran/91802 (ICE in mio_name_expr_t, at fortran/module.c:2141)

2019-09-28  Steven G. Kargl  <kargl@gcc.ngu.org>

PR fortran/91802
* decl.c (attr_decl1): Check if rank+corank > 15.

2019-09-28  Steven G. Kargl  <kargl@gcc.ngu.org>

PR fortran/91802
* gfortran.dg/pr91802.f90: New test.

From-SVN: r276254

5 years agore PR fortran/91864 (ICE in gfc_check_do_variable, at fortran/parse.c:4405)
Steven G. Kargl [Sat, 28 Sep 2019 16:26:43 +0000 (16:26 +0000)]
re PR fortran/91864 (ICE in gfc_check_do_variable, at fortran/parse.c:4405)

2019-09-28  Steven G. Kargl  <kargl@gcc.gnu.org>

PR fortran/91864
* gcc/fortran/io.c (match_io_element): An inquiry parameter cannot be
read into.
* gcc/fortran/match.c (gfc_match_allocate): An inquiry parameter
can be neither an allocate-object nor stat variable.
(gfc_match_deallocate): An inquiry parameter cannot be deallocated.

2019-09-28  Steven G. Kargl  <kargl@gcc.gnu.org>

PR fortran/91864
* gcc/testsuite/gfortran.dg/pr91864.f90

From-SVN: r276253

5 years agoPR c++/91889 - follow-up fix for DR 2352.
Marek Polacek [Sat, 28 Sep 2019 15:35:37 +0000 (15:35 +0000)]
PR c++/91889 - follow-up fix for DR 2352.

* call.c (involves_qualification_conversion_p): New function.
(direct_reference_binding): Build a ck_qual if the conversion
would involve a qualification conversion.
(convert_like_real): Strip the conversion created by the ck_qual
in direct_reference_binding.

* g++.dg/cpp0x/ref-bind3.C: Add dg-error.
* g++.dg/cpp0x/ref-bind4.C: New test.
* g++.dg/cpp0x/ref-bind5.C: New test.
* g++.dg/cpp0x/ref-bind6.C: New test.
* g++.old-deja/g++.pt/spec35.C: Revert earlier change.

From-SVN: r276251

5 years agoPR c++/91921 - stray warning with -Woverloaded-virtual.
Marek Polacek [Sat, 28 Sep 2019 11:46:33 +0000 (11:46 +0000)]
PR c++/91921 - stray warning with -Woverloaded-virtual.

* class.c (warn_hidden): Only emit the second part of
-Woverloaded-virtual if the first part was issued.  Use inform instead
warning_at.

* g++.dg/warn/Woverloaded-2.C: New.
* g++.dg/warn/Woverloaded-2.h: New.
* g++.dg/warn/pr61945.C: Turn dg-warning into dg-message.
* g++.old-deja/g++.mike/warn6.C: Likewise.
* g++.old-deja/g++.warn/virt1.C: Likewise.

From-SVN: r276249

5 years agoPR c++/91923 - failure-to-SFINAE with class type NTTP in C++17.
Marek Polacek [Sat, 28 Sep 2019 11:36:36 +0000 (11:36 +0000)]
PR c++/91923 - failure-to-SFINAE with class type NTTP in C++17.

* pt.c (invalid_nontype_parm_type_p): Only emit errors when
tf_error.

* g++.dg/cpp0x/nontype5.C: New test.

From-SVN: r276248

5 years agore PR target/86805 (sh port needs updating for CVE-2017-5753)
Oleg Endo [Sat, 28 Sep 2019 08:53:27 +0000 (08:53 +0000)]
re PR target/86805 (sh port needs updating for CVE-2017-5753)

gcc/
2019-09-28  Oleg Endo  <olegendo@gcc.gnu.org>

PR target/86805
* config/sh/sh.c (TARGET_HAVE_SPECULATION_SAFE_VALUE): Define.

From-SVN: r276244

5 years agore PR target/80672 (gcc/config/sh/sh.c:716: prefer compare to find.)
Oleg Endo [Sat, 28 Sep 2019 08:33:31 +0000 (08:33 +0000)]
re PR target/80672 (gcc/config/sh/sh.c:716: prefer compare to find.)

gcc/
2019-09-28  Oleg Endo  <olegendo@gcc.gnu.org>

PR target/80672
* config/sh/sh.c (parse_validate_atomic_model_option): Use
std::string::compare instead of std::string::find.

From-SVN: r276240

5 years agoFix endian issue in pr91656 testcases
Alan Modra [Sat, 28 Sep 2019 07:12:14 +0000 (16:42 +0930)]
Fix endian issue in pr91656 testcases

PR testsuite/91676
PR rtl-optimization/91656
* gcc.dg/torture/pr91656-1.c: Correct for big and pdp endian.
* gcc.dg/torture/pr91656-2.c: Likewise.
* gcc.dg/torture/pr91656-3.c: Likewise.

From-SVN: r276236

5 years agocompiler: resolve importing ambiguity for more complex function calls
Ian Lance Taylor [Sat, 28 Sep 2019 00:16:57 +0000 (00:16 +0000)]
compiler: resolve importing ambiguity for more complex function calls

    Tweak the exporter for inlinable function bodies to work around a
    problem with importing of function calls whose function expressions
    are not simple function names. In the bug in question, the function
    body exporter was writing out a function call of the form

           (*(*FuncTyp)(var))(arg)

    which produced an export data representation of

           *$convert(<type 5>, var)(x)

    which is hard to parse unambiguously. Fix: change the export data
    emitter to introduce parens around the function expression for more
    complex calls.

    Testcase for this bug is in CL 197217.

    Fixes golang/go#34503.

    Reviewed-on: https://go-review.googlesource.com/c/gofrontend/+/197122

From-SVN: r276228

5 years agoDaily bump.
GCC Administrator [Sat, 28 Sep 2019 00:16:24 +0000 (00:16 +0000)]
Daily bump.

From-SVN: r276227

5 years agoRegenerate `configure' scripts for `uclinuxfdpiceabi' libtool.m4 update
Maciej W. Rozycki [Fri, 27 Sep 2019 21:24:42 +0000 (21:24 +0000)]
Regenerate `configure' scripts for `uclinuxfdpiceabi' libtool.m4 update

A change made with r275564 ("[ARM/FDPIC v6 02/24] [ARM] FDPIC: Handle
arm*-*-uclinuxfdpiceabi in configure scripts") to libtool.m4 has not
regenerated all the `configure' scripts affected.  Fix it.

gcc/
* configure: Regenerate.

libatomic/
* configure: Regenerate.

libbacktrace/
* configure: Regenerate.

libcc1/
* configure: Regenerate.

libffi/
* configure: Regenerate.

libgfortran/
* configure: Regenerate.

libgomp/
* configure: Regenerate.

libhsail-rt/
* configure: Regenerate.

libitm/
* configure: Regenerate.

libobjc/
* configure: Regenerate.

liboffloadmic/
* configure: Regenerate.

libphobos/
* configure: Regenerate.

libquadmath/
* configure: Regenerate.

libsanitizer/
* configure: Regenerate.

libssp/
* configure: Regenerate.

libstdc++-v3/
* configure: Regenerate.

libvtv/
* configure: Regenerate.

lto-plugin/
* configure: Regenerate.

zlib/
* configure: Regenerate.

From-SVN: r276213

5 years agore PR c++/88203 (assert does not compile with OpenMP's pragma omp parallel for defaul...
Jakub Jelinek [Fri, 27 Sep 2019 20:14:24 +0000 (22:14 +0200)]
re PR c++/88203 (assert does not compile with OpenMP's pragma omp parallel for default(none))

PR c++/88203
c-family/
* c-common.h (c_omp_predefined_variable): Declare.
* c-omp.c (c_omp_predefined_variable): New function.
(c_omp_predetermined_sharing): Return OMP_CLAUSE_DEFAULT_SHARED
for predefined variables.
c/
* c-parser.c (c_parser_predefined_identifier): New function.
(c_parser_postfix_expression): Use it.
(c_parser_omp_variable_list): Parse predefined identifiers.
* c-typeck.c (c_finish_omp_clauses): Allow predefined variables
in shared and firstprivate clauses, even when they are predetermined
shared.
cp/
* parser.c (cp_parser_omp_var_list_no_open): Parse predefined
variables.
* semantics.c (finish_omp_clauses): Allow predefined variables in
shared and firstprivate clauses, even when they are predetermined
shared.
* cp-gimplify.c (cxx_omp_predetermined_sharing_1): Return
OMP_CLAUSE_DEFAULT_SHARED for predefined variables.
testsuite/
* c-c++-common/gomp/pr88203-1.c: New test.
* c-c++-common/gomp/pr88203-2.c: New test.
* c-c++-common/gomp/pr88203-3.c: New test.

From-SVN: r276212

5 years agore PR middle-end/91920 (ggc 9.2.0 failing openmp compile on ppc64le)
Jakub Jelinek [Fri, 27 Sep 2019 20:13:00 +0000 (22:13 +0200)]
re PR middle-end/91920 (ggc 9.2.0 failing openmp compile on ppc64le)

PR middle-end/91920
* gimplify.c (omp_default_clause): Predetermine DECL_IN_CONSTANT_POOL
variables as shared.

* c-c++-common/gomp/pr91920.c: New test.

From-SVN: r276211

5 years ago[Darwin, PPC, Mode Iterators 3/n] Update macho_correct_pic.
Iain Sandoe [Fri, 27 Sep 2019 19:23:39 +0000 (19:23 +0000)]
[Darwin, PPC, Mode Iterators 3/n] Update macho_correct_pic.

Drop the expander and use a mode expander on the define_insn
for macho_correct_pic instead.

gcc/ChangeLog:

2019-09-27  Iain Sandoe  <iain@sandoe.co.uk>

* config/rs6000/darwin.md (@macho_correct_pic_<mode>): New,
replaces the expander and two define_insn entries.
(@reload_macho_picbase_<mode>): Update gen_macho_correct_pic
call.
* config/rs6000/rs6000.md (builtin_setjmp_receiver): Likewise.

From-SVN: r276196

5 years agoConst-correctness fixes for fibonacci_heap.h
David Malcolm [Fri, 27 Sep 2019 18:24:44 +0000 (18:24 +0000)]
Const-correctness fixes for fibonacci_heap.h

gcc/ChangeLog:
* fibonacci_heap.h (fibonacci_heap::empty): Make const.
(fibonacci_heap::nodes): Likewise.
(fibonacci_heap::min_key): Likewise.
(fibonacci_heap::min): Likewise.

From-SVN: r276193

5 years agoconstexpr.c (cxx_fold_indirect_ref): Use similar_type_p.
Jason Merrill [Fri, 27 Sep 2019 18:23:10 +0000 (14:23 -0400)]
constexpr.c (cxx_fold_indirect_ref): Use similar_type_p.

* constexpr.c (cxx_fold_indirect_ref): Use similar_type_p.

Merging the similar_type_p change to the concepts branch broke a cmcstl2
testcase; investigating led me to this small testcase which has always
failed on trunk.

(cxx_eval_indirect_ref): Likewise.  Improve error location.

From-SVN: r276192

5 years agocp-tree.h (class iloc_sentinel): New.
Jason Merrill [Fri, 27 Sep 2019 18:19:55 +0000 (14:19 -0400)]
cp-tree.h (class iloc_sentinel): New.

* cp-tree.h (class iloc_sentinel): New.

We didn't already have a sentinel for input_location, and while
temp_override would work, it would also happily set input_location to 0,
which breaks things that try to look up the associated filename.

* decl.c (grokdeclarator, finish_enum_value_list): Use it.
* mangle.c (mangle_decl_string): Use it.
* pt.c (perform_typedefs_access_check): Use it.

From-SVN: r276191

5 years agoMake cgraph_node::get_fun const
David Malcolm [Fri, 27 Sep 2019 18:12:56 +0000 (18:12 +0000)]
Make cgraph_node::get_fun const

gcc/ChangeLog:
* cgraph.c (cgraph_node::get_fun): Make const.
* cgraph.h (cgraph_node::get_fun): Likewise.

From-SVN: r276190

5 years agocompiler: don't read known type, simplify Import::finalize_methods
Ian Lance Taylor [Fri, 27 Sep 2019 17:51:43 +0000 (17:51 +0000)]
compiler: don't read known type, simplify Import::finalize_methods

    With the current export format, if we already know the type, we don't
    have to read and parse the definition.

    We only use the finalizer in Import::finalize_methods, so make it a
    local variable.  To match Finalize_methods::type, only put struct
    types into real_for_named.

    Reviewed-on: https://go-review.googlesource.com/c/gofrontend/+/197700

From-SVN: r276188

5 years agocompiler: only check whether struct or array types are big
Ian Lance Taylor [Fri, 27 Sep 2019 17:34:58 +0000 (17:34 +0000)]
compiler: only check whether struct or array types are big

    Fetching the size of a type typically involves a hash table lookup,
    and is generally non-trivial.  The escape analysis code calls is_big
    more than one might expect.  So only fetch the size if we need it.

    Reviewed-on: https://go-review.googlesource.com/c/gofrontend/+/197699

From-SVN: r276187

5 years agocompiler: fix brace formatting
Ian Lance Taylor [Fri, 27 Sep 2019 17:32:27 +0000 (17:32 +0000)]
compiler: fix brace formatting

    Just happened to notice this one.

    Reviewed-on: https://go-review.googlesource.com/c/gofrontend/+/197698

From-SVN: r276186

5 years agoPR libstdc++/91910 fix data race in Debug Mode destructors
Jonathan Wakely [Fri, 27 Sep 2019 16:20:40 +0000 (17:20 +0100)]
PR libstdc++/91910 fix data race in Debug Mode destructors

Fix data race when _Safe_iterator_base::_M_detach() runs concurrently with
the _Safe_container_base destructor.

PR libstdc++/91910
* src/c++11/debug.cc (_Safe_iterator_base::_M_detach()): Load pointer
atomically and lock the mutex before accessing the sequence.
(_Safe_local_iterator_base::_M_detach()): Likewise.
(_Safe_iterator_base::_M_reset()): Clear _M_sequence atomically.

From-SVN: r276184

5 years agore PR target/91919 (arm-linux-eabi ICE with building kernel)
Jakub Jelinek [Fri, 27 Sep 2019 15:48:51 +0000 (17:48 +0200)]
re PR target/91919 (arm-linux-eabi ICE with building kernel)

PR target/91919
* config/arm/arm.md (<US>mlal): Remove SE wrappers around operands
of SImode MULT.

* gcc.c-torture/compile/pr91919.c: New.test

From-SVN: r276183

5 years agotree-vectorizer.h (_stmt_vec_info::reduc_fn): New.
Richard Biener [Fri, 27 Sep 2019 13:19:58 +0000 (13:19 +0000)]
tree-vectorizer.h (_stmt_vec_info::reduc_fn): New.

2019-09-27  Richard Biener  <rguenther@suse.de>

* tree-vectorizer.h (_stmt_vec_info::reduc_fn): New.
(STMT_VINFO_REDUC_FN): Likewise.
* tree-vectorizer.c (vec_info::new_stmt_vec_info): Initialize
STMT_VINFO_REDUC_FN.
* tree-vect-loop.c (vect_is_simple_reduction): Fix STMT_VINFO_REDUC_IDX
for condition reductions.
(vect_create_epilog_for_reduction): Compute all required state
from the stmt to be vectorized.
(vectorizable_reduction): Simplify vect_create_epilog_for_reduction
invocation and remove then dead code.  For single def-use chains
record only a single vector stmt.

From-SVN: r276180

5 years agoassociate_48.f90: Fix a dg directive.
Manfred Schwarb [Fri, 27 Sep 2019 12:53:23 +0000 (14:53 +0200)]
associate_48.f90: Fix a dg directive.

2019-09-27  Manfred Schwarb  <manfred99@gmx.ch>

        * gfortran.dg/associate_48.f90: Fix a dg directive.
        * gfortran.dg/auto_in_equiv_1.f90: Ditto.
        * gfortran.dg/auto_in_equiv_2.f90: Ditto.
        * gfortran.dg/lto/pr87689_0.f: Ditto.

From-SVN: r276179

5 years agore PR tree-optimization/91885 (ICE when compiling SPEC 2017 blender benchmark with...
Jakub Jelinek [Fri, 27 Sep 2019 10:28:48 +0000 (12:28 +0200)]
re PR tree-optimization/91885 (ICE when compiling SPEC 2017 blender benchmark with -O3 -fprofile-generate)

PR tree-optimization/91885
* gcc.dg/pr91885.c (__int64_t): Change from long to long long.
(__uint64_t): Change from unsigned long to unsigned long long.

From-SVN: r276178

5 years ago[AArch64] Split built-in function codes into major and minor codes
Richard Sandiford [Fri, 27 Sep 2019 08:47:21 +0000 (08:47 +0000)]
[AArch64] Split built-in function codes into major and minor codes

It was easier to add the SVE ACLE support without enumerating every
function at build time.  This in turn meant that it was easier if the
SVE builtins occupied a distinct numberspace from the existing AArch64
ones, which *are* enumerated at build time.  This patch therefore
divides the built-in functions codes into "major" and "minor" codes.
At present the major code is just "general", but the SVE patch will add
"SVE" as well.

Also, it was convenient to put the SVE ACLE support in its own file,
so the patch makes aarch64.c provide the frontline target hooks directly,
forwarding to the other files for the real work.

The reason for organising the files this way is that aarch64.c needs
to define the target hook macros whatever happens, and having aarch64.c
macros forward to aarch64-builtins.c functions and aarch64-bulitins.c
functions forward to the SVE file seemed a bit indirect.  Doing things
the way the patch does them puts aarch64-builtins.c and the SVE code on
more of an equal footing.

The aarch64_(general_)gimple_fold_builtin change is mostly just
reindentation.

2019-09-27  Richard Sandiford  <richard.sandiford@arm.com>

gcc/
* config/aarch64/aarch64-protos.h (aarch64_builtin_class): New enum.
(AARCH64_BUILTIN_SHIFT, AARCH64_BUILTIN_CLASS): New constants.
(aarch64_gimple_fold_builtin, aarch64_mangle_builtin_type)
(aarch64_fold_builtin, aarch64_init_builtins, aarch64_expand_builtin):
(aarch64_builtin_decl, aarch64_builtin_rsqrt): Delete.
(aarch64_general_mangle_builtin_type, aarch64_general_init_builtins):
(aarch64_general_fold_builtin, aarch64_general_gimple_fold_builtin):
(aarch64_general_expand_builtin, aarch64_general_builtin_decl):
(aarch64_general_builtin_rsqrt): Declare.
* config/aarch64/aarch64-builtins.c (aarch64_general_add_builtin):
New function.
(aarch64_mangle_builtin_type): Rename to...
(aarch64_general_mangle_builtin_type): ...this.
(aarch64_init_fcmla_laneq_builtins, aarch64_init_simd_builtins)
(aarch64_init_crc32_builtins, aarch64_init_builtin_rsqrt)
(aarch64_init_pauth_hint_builtins, aarch64_init_tme_builtins): Use
aarch64_general_add_builtin instead of add_builtin_function.
(aarch64_init_builtins): Rename to...
(aarch64_general_init_builtins): ...this.  Use
aarch64_general_add_builtin instead of add_builtin_function.
(aarch64_builtin_decl): Rename to...
(aarch64_general_builtin_decl): ...this and remove the unused
arguments.
(aarch64_expand_builtin): Rename to...
(aarch64_general_expand_builtin): ...this and remove the unused
arguments.
(aarch64_builtin_rsqrt): Rename to...
(aarch64_general_builtin_rsqrt): ...this.
(aarch64_fold_builtin): Rename to...
(aarch64_general_fold_builtin): ...this.  Take the function subcode
and return type as arguments.  Remove the "ignored" argument.
(aarch64_gimple_fold_builtin): Rename to...
(aarch64_general_gimple_fold_builtin): ...this.  Take the function
subcode and gcall as arguments, and return the new function call.
* config/aarch64/aarch64.c (aarch64_init_builtins)
(aarch64_fold_builtin, aarch64_gimple_fold_builtin)
(aarch64_expand_builtin, aarch64_builtin_decl): New functions.
(aarch64_builtin_reciprocal): Call aarch64_general_builtin_rsqrt
instead of aarch64_builtin_rsqrt.
(aarch64_mangle_type): Call aarch64_general_mangle_builtin_type
instead of aarch64_mangle_builtin_type.

From-SVN: r276177

5 years ago[C][C++] Allow targets to check calls to BUILT_IN_MD functions
Richard Sandiford [Fri, 27 Sep 2019 08:39:16 +0000 (08:39 +0000)]
[C][C++] Allow targets to check calls to BUILT_IN_MD functions

For SVE, we'd like the frontends to check calls to target-specific
built-in functions in the same way that they already do for "normal"
builtins.  This patch adds a target hook for that and extends
check_builtin_function_arguments accordingly.

A slight complication is that when TARGET_RESOLVE_OVERLOADED_BUILTIN
has resolved an overload, it can use build_function_call_vec to build
the call to the underlying non-overloaded function decl.  This in
turn coerces the arguments to the function type and then calls
check_builtin_function_arguments to check the final call.  If the
target does find a problem in this final call, it can be useful
to refer to the original overloaded function decl in diagnostics,
since that's what the user wrote.

The patch therefore passes the original decl as a final optional
parameter to build_function_call_vec.

2019-09-27  Richard Sandiford  <richard.sandiford@arm.com>

gcc/
* target.def (check_builtin_call): New target hook.
* doc/tm.texi.in (TARGET_CHECK_BUILTIN_CALL): New @hook.
* doc/tm.texi: Regenerate.

gcc/c-family/
* c-common.h (build_function_call_vec): Take the original
function decl as an optional final parameter.
(check_builtin_function_arguments): Take the original function decl.
* c-common.c (check_builtin_function_arguments): Likewise.
Handle all built-in functions, not just BUILT_IN_NORMAL ones.
Use targetm.check_builtin_call to check BUILT_IN_MD functions.

gcc/c/
* c-typeck.c (build_function_call_vec): Take the original function
decl as an optional final parameter.  Pass all built-in calls to
check_builtin_function_arguments.

gcc/cp/
* cp-tree.h (build_cxx_call): Take the original function decl
as an optional final parameter.
(cp_build_function_call_vec): Likewise.
* call.c (build_cxx_call): Likewise.  Pass all built-in calls to
check_builtin_function_arguments.
* typeck.c (build_function_call_vec): Take the original function
decl as an optional final parameter and pass it to
cp_build_function_call_vec.
(cp_build_function_call_vec): Take the original function
decl as an optional final parameter and pass it to build_cxx_call.

From-SVN: r276176

5 years agoFix reduc_index==1 handling for COND_REDUCTION (PR91909)
Richard Sandiford [Fri, 27 Sep 2019 08:21:37 +0000 (08:21 +0000)]
Fix reduc_index==1 handling for COND_REDUCTION (PR91909)

The then/else order of the VEC_COND_EXPRs created by
vect_create_epilog_for_reduction meeds to line up with the
main VEC_COND_EXPR.

2019-09-27  Richard Sandiford  <richard.sandiford@arm.com>

gcc/
PR tree-optimization/91909
* tree-vect-loop.c (vect_create_epilog_for_reduction): Take a
reduc_index parameter.  When handling COND_REDUCTION, make sure
that the reduction phi operand is in the correct arm of the
VEC_COND_EXPR.
(vectorizable_reduction): Pass reduc_index to the above.

From-SVN: r276175

5 years ago[AArch64][SVE2] Shift-Right Accumulate combine patterns
Yuliang Wang [Fri, 27 Sep 2019 08:10:30 +0000 (08:10 +0000)]
[AArch64][SVE2] Shift-Right Accumulate combine patterns

This patch adds combining support for SVE2's shift-right accumulate
instructions.

2019-09-27  Yuliang Wang  <yuliang.wang@arm.com>

gcc/
* config/aarch64/aarch64-sve2.md (aarch64_sve2_sra<mode>):
New combine pattern.

gcc/testsuite/
* gcc.target/aarch64/sve2/shracc_1.c: New test.

From-SVN: r276174

5 years agoset DECL_SIZE_UNIT for zero-sized fields
Alexandre Oliva [Fri, 27 Sep 2019 01:59:55 +0000 (01:59 +0000)]
set DECL_SIZE_UNIT for zero-sized fields

Zero-sized fields do not get processed by finish_record_type: they're
removed from the field list before and reinserted after, so their
DECL_SIZE_UNIT remains unset, causing the translation of assignment
statements with use_memset_p, in quite unusual circumstances, to use a
NULL_TREE as the memset length.  This patch sets DECL_SIZE_UNIT for
the zero-sized fields, that don't go through language-independent
layout, in language-specific layout.

for  gcc/ada/ChangeLog

* gcc-interface/decl.c (components_to_record): Set
DECL_SIZE_UNIT for zero-sized fields.

From-SVN: r276173

5 years agoDaily bump.
GCC Administrator [Fri, 27 Sep 2019 00:16:20 +0000 (00:16 +0000)]
Daily bump.

From-SVN: r276172

5 years agore PR libbacktrace/91908 (New libbacktrace tests fail to build)
Ian Lance Taylor [Thu, 26 Sep 2019 22:19:47 +0000 (22:19 +0000)]
re PR libbacktrace/91908 (New libbacktrace tests fail to build)

PR libbacktrace/91908
* pecoff.c (backtrace_initialize): Explicitly cast unchecked
__sync_bool_compare_and_swap to void.
* xcoff.c (backtrace_initialize): Likewise.

From-SVN: r276168

5 years agocharset.c (UCS_LIMIT): New macro.
Eric Botcazou [Thu, 26 Sep 2019 21:43:51 +0000 (21:43 +0000)]
charset.c (UCS_LIMIT): New macro.

* charset.c (UCS_LIMIT): New macro.
(ucn_valid_in_identifier): Use it instead of a hardcoded constant.
(_cpp_valid_ucn): Issue a pedantic warning for UCNs larger than
UCS_LIMIT outside of identifiers in C and in C++2a or later.

From-SVN: r276167

5 years agoxtensa: fix PR target/91880
Max Filippov [Thu, 26 Sep 2019 20:51:27 +0000 (20:51 +0000)]
xtensa: fix PR target/91880

Xtensa hwloop_optimize segfaults when zero overhead loop is about to be
inserted as the first instruction of the function.
Insert zero overhead loop instruction into new basic block before the
loop when basic block that precedes the loop is empty.

2019-09-26  Max Filippov  <jcmvbkbc@gmail.com>
gcc/
* config/xtensa/xtensa.c (hwloop_optimize): Insert zero overhead
loop instruction into new basic block before the loop when basic
block that precedes the loop is empty.

gcc/testsuite/
* gcc.target/xtensa/pr91880.c: New test case.
* gcc.target/xtensa/xtensa.exp: New test suite.

From-SVN: r276166

5 years agofunction.c (gimplify_parameters): Use build_clobber function.
Jakub Jelinek [Thu, 26 Sep 2019 20:03:12 +0000 (22:03 +0200)]
function.c (gimplify_parameters): Use build_clobber function.

* function.c (gimplify_parameters): Use build_clobber function.
* tree-ssa.c (execute_update_addresses_taken): Likewise.
* tree-inline.c (expand_call_inline): Likewise.
* tree-sra.c (clobber_subtree): Likewise.
* tree-ssa-ccp.c (insert_clobber_before_stack_restore): Likewise.
* omp-low.c (lower_rec_simd_input_clauses, lower_rec_input_clauses,
lower_omp_single, lower_depend_clauses, lower_omp_taskreg,
lower_omp_target): Likewise.
* omp-expand.c (expand_omp_for_generic): Likewise.
* omp-offload.c (ompdevlow_adjust_simt_enter): Likewise.

From-SVN: r276165

5 years agoCO_BROADCAST for derived types with allocatable components
Alessandro Fanfarillo [Thu, 26 Sep 2019 19:59:00 +0000 (13:59 -0600)]
CO_BROADCAST for derived types with allocatable components

From-SVN: r276164

5 years agors6000-builtin.def: (LVSL...
Will Schmidt [Thu, 26 Sep 2019 19:19:47 +0000 (19:19 +0000)]
rs6000-builtin.def: (LVSL...

[gcc]

2019-09-26  Will Schmidt <will_schmidt@vnet.ibm.com>
* config/rs6000/rs6000-builtin.def: (LVSL, LVSR, LVEBX, LVEHX,
LVEWX, LVXL, LVXL_V2DF, LVXL_V2DI, LVXL_V4SF, LVXL_V4SI, LVXL_V8HI,
LVXL_V16QI, LVX, LVX_V1TI, LVX_V2DF, LVX_V2DI, LVX_V4SF, LVX_V4SI,
LVX_V8HI, LVX_V16QI, LVLX, LVLXL, LVRX, LVRXL, LXSDX, LXVD2X_V1TI,
LXVD2X_V2DF, LXVD2X_V2DI, LXVDSX, LXVW4X_V4SF, LXVW4X_V4SI,
LXVW4X_V8HI, LXVW4X_V16QI, LD_ELEMREV_V1TI, LD_ELEMREV_V2DF,
LD_ELEMREV_V2DI, LD_ELEMREV_V4SF, LD_ELEMREV_V4SI, LD_ELEMREV_V8HI,
LD_ELEMREV_V16QI): Use the PURE attribute.

[testsuite]

2019-09-26  Will Schmidt <will_schmidt@vnet.ibm.com>
* gcc.target/powerpc/pure-builtin-redundant-load.c:  New.

From-SVN: r276163

5 years agors6000-builtin.def: (LVSL...
Will Schmidt [Thu, 26 Sep 2019 19:19:10 +0000 (19:19 +0000)]
rs6000-builtin.def: (LVSL...

[gcc]

2019-09-26  Will Schmidt <will_schmidt@vnet.ibm.com>
* config/rs6000/rs6000-builtin.def: (LVSL, LVSR, LVEBX, LVEHX,
LVEWX, LVXL, LVXL_V2DF, LVXL_V2DI, LVXL_V4SF, LVXL_V4SI, LVXL_V8HI,
LVXL_V16QI, LVX, LVX_V1TI, LVX_V2DF, LVX_V2DI, LVX_V4SF, LVX_V4SI,
LVX_V8HI, LVX_V16QI, LVLX, LVLXL, LVRX, LVRXL, LXSDX, LXVD2X_V1TI,
LXVD2X_V2DF, LXVD2X_V2DI, LXVDSX, LXVW4X_V4SF, LXVW4X_V4SI,
LXVW4X_V8HI, LXVW4X_V16QI, LD_ELEMREV_V1TI, LD_ELEMREV_V2DF,
LD_ELEMREV_V2DI, LD_ELEMREV_V4SF, LD_ELEMREV_V4SI, LD_ELEMREV_V8HI,
LD_ELEMREV_V16QI): Use the PURE attribute.

[testsuite]

2019-09-26  Will Schmidt <will_schmidt@vnet.ibm.com>
* gcc.target/powerpc/pure-builtin-redundant-load.c:  New.

From-SVN: r276162

5 years ago[Darwin, PPC, Mode Iterators 2/n] Eliminate picbase expanders.
Iain Sandoe [Thu, 26 Sep 2019 18:50:55 +0000 (18:50 +0000)]
[Darwin, PPC, Mode Iterators 2/n] Eliminate picbase expanders.

We can use the mode iterators directly with an @pattern to avoid the
need for an expander that was only there to pass the mode through.

gcc/ChangeLog:

2019-09-26  Iain Sandoe  <iain@sandoe.co.uk>

* config/rs6000/darwin.md: Replace the expanders for
load_macho_picbase and reload_macho_picbase with use of '@'
in their respective define_insns.
(nonlocal_goto_receiver): Pass Pmode to gen_reload_macho_picbase.
* config/rs6000/rs6000-logue.c (rs6000_emit_prologue): Pass
Pmode to gen_load_macho_picbase.
* config/rs6000/rs6000.md: Likewise.

From-SVN: r276159

5 years agore PR tree-optimization/91896 (ICE in vect_get_vec_def_for_stmt_copy, at tree-vect...
Richard Biener [Thu, 26 Sep 2019 16:54:51 +0000 (16:54 +0000)]
re PR tree-optimization/91896 (ICE in vect_get_vec_def_for_stmt_copy, at tree-vect-stmts.c:1687)

2019-09-25  Richard Biener  <rguenther@suse.de>

PR tree-optimization/91896
* tree-vect-loop.c (vectorizable_reduction): The single
def-use cycle optimization cannot apply when there's more
than one pattern stmt involved.

* gcc.dg/torture/pr91896.c: New testcase.

From-SVN: r276158

5 years agotree-vect-loop.c (vect_analyze_loop_operations): Analyze loop-closed PHIs that are...
Richard Biener [Thu, 26 Sep 2019 16:52:50 +0000 (16:52 +0000)]
tree-vect-loop.c (vect_analyze_loop_operations): Analyze loop-closed PHIs that are vect_internal_def.

2019-09-26  Richard Biener  <rguenther@suse.de>

* tree-vect-loop.c (vect_analyze_loop_operations): Analyze
loop-closed PHIs that are vect_internal_def.
(vect_create_epilog_for_reduction): Exit early for nested cycles.
Simplify.
(vectorizable_lc_phi): New.
* tree-vect-stmts.c (vect_analyze_stmt): Call vectorize_lc_phi.
(vect_transform_stmt): Likewise.
* tree-vectorizer.h (stmt_vec_info_type): Add lc_phi_info_type.
(vectorizable_lc_phi): Declare.

From-SVN: r276157

5 years agoPR tree-optimization/91914 - Invalid strlen folding for offset into struct
Martin Sebor [Thu, 26 Sep 2019 16:17:22 +0000 (16:17 +0000)]
PR tree-optimization/91914 - Invalid strlen folding for offset into struct

gcc/testsuite/CHangeLog:
* gcc.dg/strlenopt-79.c: New test.

From-SVN: r276156

5 years agoDefine std::to_array for Debug Mode
Jonathan Wakely [Thu, 26 Sep 2019 16:08:44 +0000 (17:08 +0100)]
Define std::to_array for Debug Mode

* include/debug/array (to_array): Define for debug mode.

From-SVN: r276155

5 years agoImplement C++20 constexpr changes to std::pair (P1032R1)
Jonathan Wakely [Thu, 26 Sep 2019 16:08:39 +0000 (17:08 +0100)]
Implement C++20 constexpr changes to std::pair (P1032R1)

* include/bits/stl_pair.h (pair): Add _GLIBCXX20_CONSTEXPR to
piecewise construction constructor, assignment operators, and swap.
* include/std/tuple (pair::pair(piecewise_construct_t, tuple, tuple)):
Add _GLIBCXX20_CONSTEXPR.
(pair::pair(tuple, tuple, _Index_tuple, _Index_tuple)): Likewise.
* testsuite/20_util/pair/constexpr_assign.cc: New test.
* testsuite/20_util/pair/constexpr_swap.cc: New test.

From-SVN: r276154

5 years agoFix array index error in address_v6 comparisons
Jonathan Wakely [Thu, 26 Sep 2019 16:08:33 +0000 (17:08 +0100)]
Fix array index error in address_v6 comparisons

* include/experimental/internet (operator==, operator<): Fix loop
condition to avoid reading past the end of the array.

From-SVN: r276153

5 years agoRemove include directives for deleted Profile Mode headers
Jonathan Wakely [Thu, 26 Sep 2019 16:08:24 +0000 (17:08 +0100)]
Remove include directives for deleted Profile Mode headers

* include/std/array: Remove references to profile mode.
* include/std/bitset: Likewise.
* include/std/deque: Likewise.
* include/std/forward_list: Likewise.
* include/std/list: Likewise.
* include/std/map: Likewise.
* include/std/set: Likewise.
* include/std/unordered_map: Likewise.
* include/std/unordered_set: Likewise.
* include/std/vector: Likewise.
* testsuite/17_intro/headers/c++1998/profile_mode.cc: New test.
* testsuite/17_intro/headers/c++2011/profile_mode.cc: New test.

From-SVN: r276152

5 years ago* osint.adb (OS_Time_To_GNAT_Time): Remove dependency on To_C/To_Ada
Arnaud Charlet [Thu, 26 Sep 2019 14:10:46 +0000 (14:10 +0000)]
* osint.adb (OS_Time_To_GNAT_Time): Remove dependency on To_C/To_Ada

From-SVN: r276151

5 years agotree-vect-loop.c (vect_analyze_loop_operations): Also call vectorizable_reduction...
Richard Biener [Thu, 26 Sep 2019 13:52:45 +0000 (13:52 +0000)]
tree-vect-loop.c (vect_analyze_loop_operations): Also call vectorizable_reduction for vect_double_reduction_def.

2019-09-26  Richard Biener  <rguenther@suse.de>

* tree-vect-loop.c (vect_analyze_loop_operations): Also call
vectorizable_reduction for vect_double_reduction_def.
(vect_transform_loop): Likewise.
(vect_create_epilog_for_reduction): Move double-reduction
PHI creation and preheader argument setting of PHIs ...
(vectorizable_reduction): ... here.  Also process
vect_double_reduction_def PHIs, creating the vectorized
PHI nodes, remembering the scalar adjustment computed for
the epilogue in STMT_VINFO_REDUC_EPILOGUE_ADJUSTMENT.
Remember the original reduction code in STMT_VINFO_REDUC_CODE.
* tree-vectorizer.c (vec_info::new_stmt_vec_info):
Initialize STMT_VINFO_REDUC_CODE.
* tree-vectorizer.h (_stmt_vec_info::reduc_epilogue_adjustment): New.
(_stmt_vec_info::reduc_code): Likewise.
(STMT_VINFO_REDUC_EPILOGUE_ADJUSTMENT): Likewise.
(STMT_VINFO_REDUC_CODE): Likewise.

From-SVN: r276150

5 years agoAdd myself as an aarch64 maintainer
Richard Sandiford [Thu, 26 Sep 2019 10:54:50 +0000 (10:54 +0000)]
Add myself as an aarch64 maintainer

2019-09-26  Richard Sandiford  <richard.sandiford@arm.com>

* MAINTAINERS: Add myself as an aarch64 maintainer.

From-SVN: r276149

5 years agodriver: Also prune joined switches with negation
Matt Turner [Thu, 26 Sep 2019 10:52:42 +0000 (10:52 +0000)]
driver: Also prune joined switches with negation

When -march=native is passed to host_detect_local_cpu to the backend,
it overrides all command lines after it.  That means

$ gcc -march=native -march=armv8-a

is treated as

$ gcc -march=armv8-a -march=native

Prune joined switches with Negative and RejectNegative to allow
-march=armv8-a to override previous -march=native on command-line.

This is the same fix as was applied for i386 in SVN revision 269164 but for
aarch64 and arm.

2019-09-26  Matt Turner  <mattst88@gmail.com>

PR driver/69471
* config/aarch64/aarch64.opt (march=): Add Negative(march=).
(mtune=): Add Negative(mtune=).
(mcpu=): Add Negative(mcpu=).
* config/arm/arm.opt: Likewise.

From-SVN: r276148

5 years ago[arm] Implement DImode SIMD32 intrinsics
Kyrylo Tkachov [Thu, 26 Sep 2019 10:48:02 +0000 (10:48 +0000)]
[arm] Implement DImode SIMD32 intrinsics

This patch implements some more SIMD32, but these ones have a DImode result+addend.
Apart from that there's nothing too exciting about them.

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

* config/arm/arm.md (arm_<simd32_op>): New define_insn.
* config/arm/arm_acle.h (__smlald, __smlaldx, __smlsld, __smlsldx):
Define.
* config/arm/arm_acle.h: Define builtins for the above.
* config/arm/iterators.md (SIMD32_DIMODE): New int_iterator.
(simd32_op): Handle the above.
* config/arm/unspecs.md: Define unspecs for the above.

* gcc.target/arm/acle/simd32.c: Update test.

From-SVN: r276147

5 years ago[arm] Implement non-GE-setting SIMD32 intrinsics
Kyrylo Tkachov [Thu, 26 Sep 2019 10:46:14 +0000 (10:46 +0000)]
[arm] Implement non-GE-setting SIMD32 intrinsics

This patch is part of a series to implement the SIMD32 ACLE intrinsics [1].
The interesting parts implementation-wise involve adding support for setting and reading
the Q bit for saturation and the GE-bits for the packed SIMD instructions.
That will come in a later patch.

For now, this patch implements the other intrinsics that don't need anything special ;
just a mapping from arm_acle.h function to builtin to RTL expander+unspec.

I've compressed as many as I could with iterators so that we end up needing only 3
new define_insns.

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

[1] https://developer.arm.com/docs/101028/latest/data-processing-intrinsics

* config/arm/arm.md (arm_<simd32_op>): New define_insn.
(arm_<sup>xtb16): Likewise.
(arm_usada8): Likewise.
* config/arm/arm_acle.h (__qadd8, __qsub8, __shadd8, __shsub8,
__uhadd8, __uhsub8, __uqadd8, __uqsub8, __qadd16, __qasx, __qsax,
__qsub16, __shadd16, __shasx, __shsax, __shsub16, __uhadd16, __uhasx,
__uhsax, __uhsub16, __uqadd16, __uqasx, __uqsax, __uqsub16, __sxtab16,
__sxtb16, __uxtab16, __uxtb16): Define.
* config/arm/arm_acle_builtins.def: Define builtins for the above.
* config/arm/unspecs.md: Define unspecs for the above.
* config/arm/iterators.md (SIMD32_NOGE_BINOP): New int_iterator.
(USXTB16): Likewise.
(simd32_op): New int_attribute.
(sup): Handle UNSPEC_SXTB16, UNSPEC_UXTB16.
* doc/sourcebuild.exp (arm_simd32_ok): Document.

* lib/target-supports.exp
(check_effective_target_arm_simd32_ok_nocache): New procedure.
(check_effective_target_arm_simd32_ok): Likewise.
(add_options_for_arm_simd32): Likewise.
* gcc.target/arm/acle/simd32.c: New test.

From-SVN: r276146

5 years ago[arm] Update FP16 tests
Richard Sandiford [Thu, 26 Sep 2019 10:43:09 +0000 (10:43 +0000)]
[arm] Update FP16 tests

My recent assemble_real patch (r275873) meant that we now output
negative FP16 constants in the same way as we'd output an integer
subreg of them.  This patch updates gcc.target/arm/fp16-* accordingly.

2019-09-26  Richard Sandiford  <richard.sandiford@arm.com>

gcc/testsuite/
* gcc.target/arm/fp16-compile-alt-3.c: Expect (__fp16) -2.0
to be written as a negative short rather than a positive one.
* gcc.target/arm/fp16-compile-ieee-3.c: Likewise.

From-SVN: r276145

5 years ago[PATCH] Fix quoting in a call to internal_error
Martin Jambor [Thu, 26 Sep 2019 10:39:48 +0000 (12:39 +0200)]
[PATCH] Fix quoting in a call to internal_error

2019-09-26  Martin Jambor  <mjambor@suse.cz>

* ipa-sra.c (verify_splitting_accesses): Fix quoting in a call to
internal_error.

From-SVN: r276144

5 years ago[PATCH] Fix continue condition in IPA-SRA's process_scan_results
Martin Jambor [Thu, 26 Sep 2019 10:32:45 +0000 (12:32 +0200)]
[PATCH] Fix continue condition in IPA-SRA's process_scan_results

2019-09-26  Martin Jambor  <mjambor@suse.cz>

* ipa-sra.c (process_scan_results): Fix continue condition.

From-SVN: r276143

5 years agoAdd myself as aarch64 port maintainer
Kyrylo Tkachov [Thu, 26 Sep 2019 10:10:17 +0000 (10:10 +0000)]
Add myself as aarch64 port maintainer

* MAINTAINERS: Add myself as aarch64 maintainer.

From-SVN: r276142

5 years agoAdd TODO_update_ssa for SLP BB vectorization (PR tree-optimization/91885).
Martin Liska [Thu, 26 Sep 2019 07:40:09 +0000 (09:40 +0200)]
Add TODO_update_ssa for SLP BB vectorization (PR tree-optimization/91885).

2019-09-26  Martin Liska  <mliska@suse.cz>

PR tree-optimization/91885
* tree-vectorizer.c (try_vectorize_loop_1):
Add TODO_update_ssa_only_virtuals similarly to what slp
pass does.
2019-09-26  Martin Liska  <mliska@suse.cz>

PR tree-optimization/91885
* gcc.dg/pr91885.c: New test.

From-SVN: r276141

5 years ago[AArch64] Fix cost of (plus ... (const_int -C))
Richard Sandiford [Thu, 26 Sep 2019 07:38:21 +0000 (07:38 +0000)]
[AArch64] Fix cost of (plus ... (const_int -C))

The PLUS handling in aarch64_rtx_costs only checked for nonnegative
constants, meaning that simple immediate subtractions like:

  (set (reg R1) (plus (reg R2) (const_int -8)))

had a cost of two instructions.

2019-09-26  Richard Sandiford  <richard.sandiford@arm.com>

gcc/
* config/aarch64/aarch64.c (aarch64_rtx_costs): Use
aarch64_plus_immediate rather than aarch64_uimm12_shift
to test for valid PLUS immediates.

From-SVN: r276140

5 years agoDaily bump.
GCC Administrator [Thu, 26 Sep 2019 00:16:23 +0000 (00:16 +0000)]
Daily bump.

From-SVN: r276139

5 years agolibgcc: Rebuild autoconf files
Richard Henderson [Wed, 25 Sep 2019 23:04:58 +0000 (23:04 +0000)]
libgcc: Rebuild autoconf files

        * config.in, configure: Re-rebuild with stock autoconf 2.69,
        not the ubuntu modified 2.69.

From-SVN: r276135

5 years agoaarch64: Configure for sys/auxv.h in libgcc for lse-init.c
Richard Henderson [Wed, 25 Sep 2019 22:51:55 +0000 (22:51 +0000)]
aarch64: Configure for sys/auxv.h in libgcc for lse-init.c

PR target/91833
* config/aarch64/lse-init.c: Include auto-target.h.  Disable
initialization if !HAVE_SYS_AUXV_H.
* configure.ac (AC_CHECK_HEADERS): Add sys/auxv.h.
* config.in, configure: Rebuild.

From-SVN: r276134

5 years agoaarch64: Fix store-exclusive in load-operate LSE helpers
Richard Henderson [Wed, 25 Sep 2019 21:48:41 +0000 (21:48 +0000)]
aarch64: Fix store-exclusive in load-operate LSE helpers

PR target/91834
* config/aarch64/lse.S (LDNM): Ensure STXR output does not
overlap the inputs.

From-SVN: r276133

5 years agoColorize %L and %C text to match diagnostic_show_locus (PR fortran/91426)
David Malcolm [Wed, 25 Sep 2019 19:32:44 +0000 (19:32 +0000)]
Colorize %L and %C text to match diagnostic_show_locus (PR fortran/91426)

gcc/fortran/ChangeLog:
PR fortran/91426
* error.c (curr_diagnostic): New static variable.
(gfc_report_diagnostic): New static function.
(gfc_warning): Replace call to diagnostic_report_diagnostic with
call to gfc_report_diagnostic.
(gfc_format_decoder): Colorize the text of %L and %C to match the
colorization used by diagnostic_show_locus.
(gfc_warning_now_at): Replace call to diagnostic_report_diagnostic with
call to gfc_report_diagnostic.
(gfc_warning_now): Likewise.
(gfc_warning_internal): Likewise.
(gfc_error_now): Likewise.
(gfc_fatal_error): Likewise.
(gfc_error_opt): Likewise.
(gfc_internal_error): Likewise.

From-SVN: r276132

5 years agoRemove newly unused function and variable in tree-sra
Martin Jambor [Wed, 25 Sep 2019 14:24:33 +0000 (16:24 +0200)]
Remove newly unused function and variable in tree-sra

Hi,

Martin and his clang warnings discovered that I forgot to remove a
static inline function and a variable when ripping out the old IPA-SRA
from tree-sra.c and both are now unused.  Thus I am doing that now
with the patch below which I will commit as obvious (after including
it in a round of a bootstrap and testing on an x86_64-linux).

Thanks,

Martin

2019-09-25  Martin Jambor  <mjambor@suse.cz>

* tree-sra.c (no_accesses_p): Remove.
(no_accesses_representant): Likewise.

From-SVN: r276128

5 years agoPR c++/91877 - ICE with converting member of packed struct.
Marek Polacek [Wed, 25 Sep 2019 13:53:04 +0000 (13:53 +0000)]
PR c++/91877 - ICE with converting member of packed struct.

* call.c (convert_like_real): Use similar_type_p in an assert.

* g++.dg/conversion/packed1.C: New test.

From-SVN: r276127

5 years ago[AArch64] Use implementation namespace consistently in arm_neon.h
Kyrylo Tkachov [Wed, 25 Sep 2019 13:40:20 +0000 (13:40 +0000)]
[AArch64] Use implementation namespace consistently in arm_neon.h

We're somewhat inconsistent in arm_neon.h when it comes to using the implementation namespace for local
identifiers. This means things like:
#define hash_abcd 0
#define hash_e 1
#define wk 2

#include "arm_neon.h"

uint32x4_t
foo (uint32x4_t a, uint32_t b, uint32x4_t c)
{
  return vsha1cq_u32 (a, b, c);
}

don't compile.
This patch fixes these issues throughout the whole of arm_neon.h
Bootstrapped and tested on aarch64-none-linux-gnu.
The advsimd-intrinsics.exp tests pass just fine.

From-SVN: r276125

5 years agore PR tree-optimization/91896 (ICE in vect_get_vec_def_for_stmt_copy, at tree-vect...
Richard Biener [Wed, 25 Sep 2019 13:09:25 +0000 (13:09 +0000)]
re PR tree-optimization/91896 (ICE in vect_get_vec_def_for_stmt_copy, at tree-vect-stmts.c:1687)

2019-09-25  Richard Biener  <rguenther@suse.de>

PR tree-optimization/91896
* tree-vect-loop.c (vectorizable_reduction): The single
def-use cycle optimization cannot apply when there's more
than one pattern stmt involved.

* gcc.dg/torture/pr91896.c: New testcase.

From-SVN: r276123

5 years ago[AARCH64] Add support for new control bits CTR_EL0.DIC and CTR_EL0.IDC
Shaokun Zhang [Wed, 25 Sep 2019 12:38:59 +0000 (12:38 +0000)]
[AARCH64] Add support for new control bits CTR_EL0.DIC and CTR_EL0.IDC

The DCache clean & ICache invalidation requirements for instructions
to be data coherence are discoverable through new fields in CTR_EL0.
Let's support the two bits if they are enabled, the CPU core will
not execute the unnecessary DCache clean or Icache Invalidation
instructions.

2019-09-25  Shaokun Zhang  <zhangshaokun@hisilicon.com>

* config/aarch64/sync-cache.c (__aarch64_sync_cache_range): Add support for
CTR_EL0.IDC and CTR_EL0.DIC.

From-SVN: r276122

5 years agoImplement LWG 3296 for basic_regex::assign
Jonathan Wakely [Wed, 25 Sep 2019 12:31:53 +0000 (13:31 +0100)]
Implement LWG 3296 for basic_regex::assign

* include/bits/regex.h
(basic_regex::assign(const C*, size_t, flag_type)): Add default
argument (LWG 3296).
* testsuite/28_regex/basic_regex/assign/char/lwg3296.cc: New test.
* testsuite/28_regex/basic_regex/assign/wchar_t/lwg3296.cc: New test.

From-SVN: r276121

5 years agoMove a target test-case to generic folder.
Martin Liska [Wed, 25 Sep 2019 10:07:11 +0000 (12:07 +0200)]
Move a target test-case to generic folder.

2019-09-25  Martin Liska  <mliska@suse.cz>

* gcc.target/s390/pr91014.c: Move to ...
* gcc.dg/pr91014.c: ... this.

From-SVN: r276120

5 years agoname-lookup.c (check_extern_c_conflict): Use DECL_SOURCE_LOCATION.
Paolo Carlini [Wed, 25 Sep 2019 08:50:29 +0000 (08:50 +0000)]
name-lookup.c (check_extern_c_conflict): Use DECL_SOURCE_LOCATION.

/cp
2019-09-25  Paolo Carlini  <paolo.carlini@oracle.com>

* name-lookup.c (check_extern_c_conflict): Use DECL_SOURCE_LOCATION.
(check_local_shadow): Use it in three additional places.

/testsuite
2019-09-25  Paolo Carlini  <paolo.carlini@oracle.com>

* g++.dg/diagnostic/redeclaration-1.C: New.
* g++.dg/lookup/extern-c-hidden.C: Test location(s) too.
* g++.dg/lookup/extern-c-redecl.C: Likewise.
* g++.dg/lookup/extern-c-redecl6.C: Likewise.
* g++.old-deja/g++.other/using9.C: Likewise.

From-SVN: r276119