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2018-08-15Don't make unsized objects into extern.Iain Sandoe5-11/+16
2018-08-15 Iain Sandoe <iain@sandoe.co.uk> gcc/c: PR c/19315 * c-decl.c (finish_decl): Don't add the 'extern' storage class to objects of unknown size. gcc/testsuite: PR c/19315 gcc.dg/graphite/pr82451.c: Make array 'a' an extern. gcc.dg/redecl-10.c: Expect warnings for the static vars with unknown size. From-SVN: r263556
2018-08-15Darwin - remove unnecessary target hookIain Sandoe3-19/+7
gcc/ 2018-08-15 Iain Sandoe <iain@sandoe.co.uk> * config/darwin.c (darwin_function_switched_text_sections): Delete. * gcc/config/darwin.h (TARGET_ASM_FUNCTION_SWITCHED_TEXT_SECTIONS): Likewise. From-SVN: r263555
2018-08-15Fix single-threaded build for targets without atomicsJonathan Wakely2-1/+26
* src/c++17/memory_resource.cc [!_GLIBCXX_HAS_GTHREADS] (atomic_mem_res): Add unsynchronized definition for single-threaded. From-SVN: r263554
2018-08-15Update Darwin section names for DWARF5Iain Sandoe2-12/+28
gcc/ 2018-08-15 Iain Sandoe <iain@sandoe.co.uk> PR target/81685 * config/darwin.h: (DEBUG_STR_OFFSETS_SECTION, DEBUG_LOCLISTS_SECTION, DEBUG_RNGLISTS_SECTION) new macros. (DEBUG_PUBNAMES_SECTION, DEBUG_PUBTYPES_SECTION) update to include GNU variant. From-SVN: r263553
2018-08-15Fix merging of 2 predictors (PR tree-optimization/86925).Martin Liska5-3/+58
2018-08-15 Martin Liska <mliska@suse.cz> PR tree-optimization/86925 * predict.c (expr_expected_value_1): When taking later predictor, assign also probability. Use fold_build2_initializer_loc in order to fold the expression in -frounding-math. 2018-08-15 Martin Liska <mliska@suse.cz> PR tree-optimization/86925 * gcc.dg/predict-20.c: New test. * gcc.dg/predict-21.c: New test. From-SVN: r263552
2018-08-15decl.c (check_previous_goto_1): When decl_jump_unsafe returns 2 emit an ↵Paolo Carlini4-4/+14
error instead of a permerror. /cp 2018-08-15 Paolo Carlini <paolo.carlini@oracle.com> * decl.c (check_previous_goto_1): When decl_jump_unsafe returns 2 emit an error instead of a permerror. /testsuite 2018-08-15 Paolo Carlini <paolo.carlini@oracle.com> * g++.dg/init/goto3.C: Adjust for error instead of permerror. From-SVN: r263551
2018-08-15backport: ffi.c (ffi_call_go, [...]): New functions.Andreas Schwab4-13/+140
Backport of RISC-V support for libffi go closures * src/riscv/ffi.c (ffi_call_go, ffi_prep_go_closure): New functions. (ffi_call_int): Renamed from ffi_call. (ffi_call_asm, ffi_closure_inner): Adjust interface. * src/riscv/ffitarget.h (FFI_GO_CLOSURES): Define. * src/riscv/sysv.S (ffi_go_closure_asm): New function. (ffi_closure_asm, ffi_call_asm): Update for adjusted interfaces. From-SVN: r263550
2018-08-14i386.c (expand_vec_perm_movs): New method matching movs patterns.Allan Sandfeld Jensen6-2/+77
* config/i386/i386.c (expand_vec_perm_movs): New method matching movs patterns. (expand_vec_perm_1): Try the new method. * gcc.target/i386/sse2-movs.c: New test. From-SVN: r263549
2018-08-14re PR target/86547 (s390x: Maximum number of LRA assignment passes is ↵Ilya Leoshkevich2-1/+8
achieved (30) when compiling a small inline assembler snippet) PR target/86547 * lra-lives.c (remove_some_program_points_and_update_live_ranges): Check whether lra_live_max_point is 0 before dividing. From-SVN: r263548
2018-08-15Daily bump.GCC Administrator1-1/+1
From-SVN: r263547
2018-08-14Include <sys/random.h> for getentropy on SolarisRainer Orth5-4/+20
* configure.ac: Check for <sys/random.h>. * configure, config.h.in: Regenerate. * intrinsics/random.c [HAVE_SYS_RANDOM_H]: Include <sys/random.h>. From-SVN: r263543
2018-08-14PR libstdc++/86954 use non-placement operator deleteJonathan Wakely2-4/+8
As explained in the PR, there's no reason to call the nothrow delete, we can just use the normal one. PR libstdc++/86954 * include/bits/stl_tempbuf.h (return_temporary_buffer): Use non-placement delete. From-SVN: r263542
2018-08-14PR tree-optimization/86650 - -Warray-bounds missing inlining contextMartin Sebor4-75/+124
gcc/ChangeLog: PR tree-optimization/86650 * tree-vrp.c (vrp_prop::check_array_ref): Print an inform message. (vrp_prop::check_mem_ref): Same. gcc/testsuite/ChangeLog: PR tree-optimization/86650 * gcc.dg/Warray-bounds-34.c: New test. From-SVN: r263541
2018-08-14re PR fortran/86116 (Ambiguous generic interface not recognised)Janus Weil4-3/+52
2018-08-14 Janus Weil <janus@gcc.gnu.org> PR fortran/86116 * interface.c (compare_type): Remove a CLASS/TYPE check. (compare_type_characteristics): New function that behaves like the old 'compare_type'. (gfc_check_dummy_characteristics, gfc_check_result_characteristics): Call 'compare_type_characteristics' instead of 'compare_type'. 2018-08-14 Janus Weil <janus@gcc.gnu.org> PR fortran/86116 * gfortran.dg/generic_34.f90: New test case. From-SVN: r263540
2018-08-14Simplify overflow checks in duration literalsJonathan Wakely2-14/+7
* include/std/chrono (__check_overflow): Simplify definition. (_Checked_integral_constant): Remove. From-SVN: r263537
2018-08-14PR libstdc++/86846 Alternative to pointer-width atomicsJonathan Wakely3-1/+57
Define a class using std::mutex for when std::atomic<memory_resource*> cannot be used to implement the default memory resource. When std::mutex constructor is not constexpr the constant_init trick won't work, so just define a global and use init_priority for it. The compiler warns about using reserved priority, so put the definition in a header file using #pragma GCC system_header to suppress the warning. PR libstdc++/86846 * src/c++17/default_resource.h: New file, defining default_res. * src/c++17/memory_resource.cc [ATOMIC_POINTER_LOCK_FREE != 2] (atomic_mem_res): Define alternative for atomic<memory_resource*> using a mutex instead of atomics. From-SVN: r263536
2018-08-14PR libstdc++/85343 overload __throw_ios_failure to take errnoJonathan Wakely7-3/+45
[ios::failure] p2: "When throwing ios_base::failure exceptions, implementations should provide values of ec that identify the specific reason for the failure." This adds a new overload of __throw_ios_failure that can be passed errno, to store error_code(errno, system_category()) in the exception object. PR libstdc++/85343 * acinclude.m4 (libtool_VERSION): Bump version. * config/abi/pre/gnu.ver (GLIBCXX_3.4.26): Add new symbol version. Export new symbol. * configure: Regenerate. * doc/xml/manual/abi.xml: Document new versions. * include/bits/fstream.tcc (basic_filebuf<C, T>::underflow) (basic_filebuf<C, T>::xsgetn): Pass errno to __throw_ios_failure. * include/bits/functexcept.h (__throw_ios_failure(const char*, int)): Declare new overload. * src/c++11/cxx11-ios_failure.cc (__ios_failure): Add new constructor and static member function. (__throw_ios_failure(const char*, int)): Define. * src/c++98/ios_failure.cc [!_GLIBCXX_USE_DUAL_ABI] (__throw_ios_failure(const char*, int)): Define. * testsuite/util/testsuite_abi.cc: Update known and latest versions. From-SVN: r263535
2018-08-14Rope iterators: don't retain pointers when copiedJeremy Sawicki3-3/+107
Rope iterators sometimes contain pointers to an internal buffer inside the iterator itself. When such an iterator is copied, the copy incorrectly retains pointers to the original. This patch takes the simple approach of not copying the cached information when the internal buffer is being used, instead requiring it to be recomputed when the copied iterator is dereferenced. An alternative would be to adjust the pointers so they refer to the buffer in the copy. 2018-08-14 Jeremy Sawicki <jeremy-gcc@sawicki.us> * include/ext/rope (_Rope_iterator_base(const _Rope_iterator_base&)) (_Rope_const_iterator::operator=(const _Rope_const_iterator&)) (_Rope_iterator::operator=(const _Rope_iterator&)): Ensure copied/assigned rope iterators don't retain pointers to the iterator they were copied/assigned from. * testsuite/ext/rope/7.cc: New. From-SVN: r263534
2018-08-14pretty-print.c (eat_esc_sequence): Swap the foreground and background colors ↵Liu Hao2-0/+16
if... * gcc/pretty-print.c (eat_esc_sequence): Swap the foreground and background colors if the COMMON_LVB_REVERSE_VIDEO flag is set, and clear it thereafter, as it only works for DBCS. From-SVN: r263531
2018-08-14pretty-print.c (mingw_ansi_fputs): Do not call _close() on the handle ↵Liu Hao2-1/+5
returned by _get_osf_handle(). * gcc/pretty-print.c (mingw_ansi_fputs): Do not call _close() on the handle returned by _get_osf_handle(). From-SVN: r263530
2018-08-14Daily bump.GCC Administrator1-1/+1
From-SVN: r263527
2018-08-13re PR c++/57891 (No diagnostic of narrowing conversion in non-type template ↵Marek Polacek26-62/+159
argument) PR c++/57891 * call.c (struct conversion): Add check_narrowing_const_only. (build_converted_constant_expr): Set check_narrowing and check_narrowing_const_only. Give error if expr is error node. (convert_like_real): Pass it to check_narrowing. * cp-tree.h (check_narrowing): Add a default parameter. * decl.c (compute_array_index_type): Use input_location instead of location_of. * pt.c (convert_nontype_argument): Return NULL_TREE if tf_error. * typeck2.c (check_narrowing): Don't warn for instantiation-dependent expressions. Call maybe_constant_value instead of fold_non_dependent_expr. Don't mention { } in diagnostic. Only check narrowing for constants if CONST_ONLY. * g++.dg/cpp0x/Wnarrowing6.C: New test. * g++.dg/cpp0x/Wnarrowing7.C: New test. * g++.dg/cpp0x/Wnarrowing8.C: New test. * g++.dg/cpp0x/Wnarrowing9.C: New test. * g++.dg/cpp0x/Wnarrowing10.C: New test. * g++.dg/cpp0x/constexpr-47969.C: Adjust dg-error. * g++.dg/cpp0x/constexpr-ex2.C: Likewise. * g++.dg/cpp0x/constexpr-targ.C: Likewise. * g++.dg/cpp0x/scoped_enum2.C: Likewise. * g++.dg/ext/stmtexpr15.C: Likewise. * g++.dg/gomp/pr47963.C: Likewise. * g++.dg/init/new37.C: Likewise. * g++.dg/init/new43.C: Likewise. * g++.dg/other/fold1.C: Likewise. * g++.dg/parse/array-size2.C: Likewise. * g++.dg/template/dependent-name3.C: Likewise. * g++.dg/cpp0x/constexpr-data2.C: Add dg-error. * g++.dg/other/vrp1.C: Likewise. * g++.dg/template/char1.C: Likewise. From-SVN: r263523
2018-08-13Use getentropy() for seeding PRNGJanne Blomqvist5-8/+21
The getentropy function, found on Linux, OpenBSD, and recently also FreeBSD, can be used to get random bytes to initialize the PRNG. It is similar to the traditional way of reading from /dev/urandom, but being a system call rather than a special file, it doesn't suffer from problems like running out of file descriptors, or failure when running in a container where /dev/urandom may not be available. Regtested on x86_64-pc-linux-gnu, Ok for trunk? 2018-08-13 Janne Blomqvist <jb@gcc.gnu.org> * configure.ac: Check for getentropy. * intrinsics/random.c (getosrandom): Use getentropy if available. * config.h.in: Regenerated. * configure: Regenerated. From-SVN: r263522
2018-08-13rs6000: Fix pr56605.cSegher Boessenkool2-1/+6
After the combine 2-2 changes, this testcase does not have a ZERO_EXTEND in the intermediate code, but an AND instead. gcc/testsuite/ * gcc.target/powerpc/pr56605.c: The generated code can have an AND instead of a ZERO_EXTEND. From-SVN: r263521
2018-08-13rs6000.c (rs6000_gimple_fold_builtin): Add support for folding vec_perm.Will Schmidt2-0/+36
[gcc] 2018-07-06 Will Schmidt <will_schmidt@vnet.ibm.com> * gcc/config/rs6000/rs6000.c (rs6000_gimple_fold_builtin): Add support for folding vec_perm. From-SVN: r263520
2018-08-13rs6000.c (rs6000_gimple_fold_builtin): Add support for gimple-folding of ↵Will Schmidt2-0/+59
vec_pack() and vec_unpack() intrinsics. [gcc] 2018-08-13 Will Schmidt <will_schmidt@vnet.ibm.com> * config/rs6000/rs6000.c (rs6000_gimple_fold_builtin): Add support for gimple-folding of vec_pack() and vec_unpack() intrinsics. From-SVN: r263519
2018-08-13PR libstdc++/45093 avoid warnings for _M_destroy_nodeJonathan Wakely2-6/+10
PR libstdc++/45093 * include/bits/stl_tree.h (_Rb_tree::_M_destroy_node(_Link_type)): Combine definitions to avoid --detect-odr-violations warning. From-SVN: r263516
2018-08-13Minor optimisations in operator new(size_t, align_val_t)Jonathan Wakely2-3/+7
* libsupc++/new_opa.cc (operator new(size_t, align_val_t)): Use __is_pow2 to check for valid alignment. Avoid branching when rounding size to multiple of alignment. From-SVN: r263515
2018-08-13Add <bit> and <version> to freestanding headersJonathan Wakely4-10/+23
* include/Makefile.am: Install <bit> and <version> for freestanding. * include/Makefile.in: Regenerate. * testsuite/17_intro/freestanding.cc: Check for <bit> and <version>. From-SVN: r263514
2018-08-13Revert "libstdc++-v3: Have aligned_alloc() on Newlib"Jonathan Wakely3-3/+10
This reverts commit r263461 / 2e920cd849b3cf0a72df4f172e27676a3e70b73f because aligned_alloc is not defined for baremetal newlib targets, see https://gcc.gnu.org/ml/libstdc++/2018-08/msg00065.html Revert 2018-08-10 Sebastian Huber <sebastian.huber@embedded-brains.de> PR target/85904 * configure.ac: Define HAVE_ALIGNED_ALLOC if building for Newlib. * configure: Regenerate. From-SVN: r263513
2018-08-13rs6000.c (rs6000_builtin_valid_without_lhs): Add vec_xst variants to the list.Will Schmidt2-0/+84
[gcc] 2018-08-13 Will Schmidt <will_schmidt@vnet.ibm.com> * config/rs6000/rs6000.c (rs6000_builtin_valid_without_lhs): Add vec_xst variants to the list. (rs6000_gimple_fold_builtin): Add support for folding unaligned vector loads and stores. From-SVN: r263512
2018-08-13PR tree-optimization/71625 - missing strlen optimization on different array ↵Martin Sebor16-3/+709
initialization style gcc/c/ChangeLog: PR tree-optimization/71625 * c-parser.c (c_parser_declaration_or_fndef): Call braced_list_to_string. gcc/c-family/ChangeLog: PR tree-optimization/71625 * c-common.c (braced_list_to_string): New function. * c-common.h (braced_list_to_string): Declare it. gcc/cp/ChangeLog: PR tree-optimization/71625 * decl.c (check_initializer): Call braced_list_to_string. (eval_check_narrowing): New function. * gcc/cp/typeck2.c (digest_init_r): Accept strings literals as initilizers for all narrow character types. gcc/testsuite/ChangeLog: PR tree-optimization/71625 * g++.dg/init/string2.C: New test. * g++.dg/init/string3.C: New test. * g++.dg/init/string4.C: New test. * gcc.dg/init-string-3.c: New test. * gcc.dg/strlenopt-55.c: New test. * gcc.dg/strlenopt-56.c: New test. From-SVN: r263511
2018-08-13P0806R2 - Deprecate implicit capture of this via [=]Marek Polacek6-5/+182
P0806R2 - Deprecate implicit capture of this via [=] * lambda.c (add_default_capture): Formatting fixes. Warn about deprecated implicit capture of this via [=]. * g++.dg/cpp2a/lambda-this1.C: New test. * g++.dg/cpp2a/lambda-this2.C: New test. * g++.dg/cpp2a/lambda-this3.C: New test. From-SVN: r263508
2018-08-13re PR c++/86915 (Segmentation fault for an array of auto in template parameter)Marek Polacek4-1/+18
PR c++/86915 * decl.c (create_array_type_for_decl): Handle null name. * g++.dg/diagnostic/auto1.C: New test. From-SVN: r263507
2018-08-13config.gcc (rs6000-ibm-aix4.x): Delete.David Edelsohn7-770/+11
* config.gcc (rs6000-ibm-aix4.x): Delete. (rs6000-ibm-aix5.1): Delete. (rs6000-ibm-aix5.2): Delete. (rs6000-ibm-aix5.3): Delete. * config/rs6000/aix43.h: Delete. * config/rs6000/aix51.h: Delete. * config/rs6000/aix52.h: Delete. * config/rs6000/t-aix43: Delete. From-SVN: r263506
2018-08-13[nvptx] Use CUDA driver API to select default runtime launch geometryCesar Philippidis4-12/+89
The CUDA driver API starting version 6.5 offers a set of runtime functions to calculate several occupancy-related measures, as a replacement for the occupancy calculator spreadsheet. This patch adds a heuristic for default runtime launch geometry, based on the new runtime function cuOccupancyMaxPotentialBlockSize. Build on x86_64 with nvptx accelerator and ran libgomp testsuite. 2018-08-13 Cesar Philippidis <cesar@codesourcery.com> Tom de Vries <tdevries@suse.de> PR target/85590 * plugin/cuda/cuda.h (CUoccupancyB2DSize): New typedef. (cuOccupancyMaxPotentialBlockSize): Declare. * plugin/cuda-lib.def (cuOccupancyMaxPotentialBlockSize): New CUDA_ONE_CALL_MAYBE_NULL. * plugin/plugin-nvptx.c (CUDA_VERSION < 6050): Define CUoccupancyB2DSize and declare cuOccupancyMaxPotentialBlockSize. (nvptx_exec): Use cuOccupancyMaxPotentialBlockSize to set the default num_gangs and num_workers when the driver supports it. Co-Authored-By: Tom de Vries <tdevries@suse.de> From-SVN: r263505
2018-08-13S/390: Factor out constant pool ref decompositionIlya Leoshkevich2-88/+74
gcc/ChangeLog: 2018-08-13 Ilya Leoshkevich <iii@linux.ibm.com> * config/s390/s390.c (s390_decompose_constant_pool_ref): New function. (s390_decompose_address): Factor out constant pool ref decomposition. From-SVN: r263504
2018-08-13Daily bump.GCC Administrator1-1/+1
From-SVN: r263503
2018-08-12re PR fortran/66679 ([OOP] ICE with class(*) and transfer)Paul Thomas4-6/+58
2018-08-12 Paul Thomas <pault@gcc.gnu.org> PR fortran/66679 * trans-intrinsic.c (gfc_conv_intrinsic_transfer): Class array elements are returned as references to the data element. Get the class expression by stripping back the references. Use this for the element size. 2018-08-12 Paul Thomas <pault@gcc.gnu.org> PR fortran/66679 * gfortran.dg/transfer_class_3.f90: New test. From-SVN: r263499
2018-08-12[NDS32] Change return type of predicator to bool.Chung-Ju Wu3-12/+25
gcc/ * config/nds32/nds32-predicates.c (nds32_can_use_bclr_p): Change return type as bool. (nds32_can_use_bset_p): Ditto. (nds32_can_use_btgl_p): Ditto. (nds32_can_use_bitci_p): Ditto. * config/nds32/nds32-protos.h (nds32_can_use_bclr_p): Change declaration. (nds32_can_use_bset_p): Ditto. (nds32_can_use_btgl_p): Ditto. (nds32_can_use_bitci_p): Ditto. From-SVN: r263497
2018-08-12[NDS32] Add new option: -msched-prolog-epilogChung-Ju Wu3-6/+20
gcc/ * config/nds32/nds32.c (nds32_expand_prologue, nds32_expand_epilogue): Support -msched-prolog-epilog option. * config/nds32/nds32.opt (msched-prolog-epilog): New option. From-SVN: r263496
2018-08-12[NDS32] Enable -malways-align by default at -O1 and above.Chung-Ju Wu2-0/+7
gcc/ * common/config/nds32/nds32-common.c (nds32_option_optimization_table): Enalbe -malways-align. From-SVN: r263495
2018-08-12re PR fortran/86906 (erroneous name clash with renaming in use statement)Paul Thomas4-0/+32
2018-08-12 Paul Thomas <pault@gcc.gnu.org> PR fortran/86906 * resolve.c (resolve_fl_variable_derived): Check if the derived type is use associated before checking for the host association error. 2018-08-12 Paul Thomas <pault@gcc.gnu.org> PR fortran/86906 * gfortran.dg/use_rename_9.f90: New test. From-SVN: r263494
2018-08-12[NDS32] Implement more C ISR extension.Chung-Ju Wu99-277/+2023
gcc/ * config.gcc (nds32*): Add nds32_isr.h and nds32_init.inc in extra_headers. * common/config/nds32/nds32-common.c (nds32_handle_option): Handle OPT_misr_secure_ case. * config/nds32/nds32-isr.c: Implementation of backward compatibility. * config/nds32/nds32-protos.h (nds32_isr_function_critical_p): New. * config/nds32/nds32.c (nds32_attribute_table): Add critical and secure attribute. * config/nds32/nds32.h (nds32_isr_nested_type): Add NDS32_CRITICAL. (nds32_isr_info): New field security_level. (TARGET_ISR_VECTOR_SIZE_4_BYTE): New macro. * config/nds32/nds32.md (return_internal): Consider critical attribute. * config/nds32/nds32.opt (misr-secure): New option. * config/nds32/nds32_init.inc: New file. * config/nds32/nds32_isr.h: New file. libgcc/ * config/nds32/t-nds32-isr: Rearrange object dependency. * config/nds32/initfini.c: Add dwarf2 unwinding support. * config/nds32/isr-library/adj_intr_lvl.inc: Consider new extensions and registers usage. * config/nds32/isr-library/excp_isr.S: Ditto. * config/nds32/isr-library/intr_isr.S: Ditto. * config/nds32/isr-library/reset.S: Ditto. * config/nds32/isr-library/restore_all.inc: Ditto. * config/nds32/isr-library/restore_mac_regs.inc: Ditto. * config/nds32/isr-library/restore_partial.inc: Ditto. * config/nds32/isr-library/restore_usr_regs.inc: Ditto. * config/nds32/isr-library/save_all.inc: Ditto. * config/nds32/isr-library/save_mac_regs.inc: Ditto. * config/nds32/isr-library/save_partial.inc: Ditto. * config/nds32/isr-library/save_usr_regs.inc: Ditto. * config/nds32/isr-library/vec_vid*.S: Consider 4-byte vector size. From-SVN: r263493
2018-08-12Daily bump.GCC Administrator1-1/+1
From-SVN: r263492
2018-08-11pa.md (UNSPEC_MEMORY_BARRIER): New unspec enum.John David Anglin4-206/+84
gcc * config/pa/pa.md (UNSPEC_MEMORY_BARRIER): New unspec enum. Update comment for atomic instructions. (atomic_storeqi, atomic_storehi, atomic_storesi, atomic_storesf, atomic_loaddf, atomic_loaddf_1, atomic_storedf, atomic_storedf_1): Remove. (atomic_loaddi): Revise fence expansion to only emit fence prior to load for __ATOMIC_SEQ_CST model. (atomic_loaddi_1): Remove float register target. (atomic_storedi): Handle CONST_INT values. (atomic_storedi_1): Remove float register source. Add special case for zero value. (memory_barrier): New expander and insn. libgcc * config/pa/linux-atomic.c: Update comment. (FETCH_AND_OP_2, OP_AND_FETCH_2, FETCH_AND_OP_WORD, OP_AND_FETCH_WORD, COMPARE_AND_SWAP_2, __sync_val_compare_and_swap_4, SYNC_LOCK_TEST_AND_SET_2, __sync_lock_test_and_set_4): Use __ATOMIC_RELAXED for atomic loads. (SYNC_LOCK_RELEASE_1): New define. Use __sync_synchronize() and unordered store to release lock. (__sync_lock_release_8): Likewise. (SYNC_LOCK_RELEASE_2): Remove define. From-SVN: r263488
2018-08-11re PR tree-optimization/86835 (Bogus "is used uninitialized" warning with ↵Jakub Jelinek4-6/+47
-ffast-math) PR tree-optimization/86835 * tree-ssa-math-opts.c (insert_reciprocals): Even when inserting new_stmt after def_gsi, make sure to insert new_square_stmt after that stmt, not 2 stmts before it. * gcc.dg/pr86835.c: New test. From-SVN: r263487
2018-08-11PR c++/86728 - C variadic generic lambda.Jason Merrill3-1/+12
* parser.c (cp_parser_parameter_declaration): Don't turn 'auto' into a pack if it's followed by a declarator-id. From-SVN: r263484
2018-08-11Daily bump.GCC Administrator1-1/+1
From-SVN: r263483
2018-08-10PR libstdc++/68210 adjust operator new and delete for LWG 206Jonathan Wakely20-45/+268
Ensure that nothrow versions of new and delete call the ordinary versions of new or delete, instead of calling malloc or free directly. These files are all compiled with -std=gnu++14 so can use noexcept and nullptr to make the code more readable. PR libstdc++/68210 * doc/xml/manual/intro.xml: Document LWG 206 change. * libsupc++/del_op.cc: Replace _GLIBCXX_USE_NOEXCEPT with noexcept. * libsupc++/del_opa.cc: Likewise. * libsupc++/del_opant.cc: Likewise. * libsupc++/del_opnt.cc: Likewise. Call operator delete(ptr) instead of free(ptr). * libsupc++/del_ops.cc: Replace _GLIBCXX_USE_NOEXCEPT with noexcept. * libsupc++/del_opsa.cc: Likewise. * libsupc++/del_opva.cc: Likewise. * libsupc++/del_opvant.cc: Likewise. * libsupc++/del_opvnt.cc: Likewise. Call operator delete[](ptr) instead of operator delete(ptr). * libsupc++/del_opvs.cc: Replace _GLIBCXX_USE_NOEXCEPT with noexcept. * libsupc++/del_opvsa.cc: Likewise. * libsupc++/new_op.cc: Use __builtin_expect in check for zero size. * libsupc++/new_opa.cc: Use nullptr instead of literal 0. * libsupc++/new_opant.cc: Likewise. Replace _GLIBCXX_USE_NOEXCEPT with noexcept. * libsupc++/new_opnt.cc: Likewise. Call operator new(sz) instead of malloc(sz). * libsupc++/new_opvant.cc: Use nullptr and noexcept. * libsupc++/new_opvnt.cc: Likewise. Call operator new[](sz) instead of operator new(sz, nothrow). * testsuite/18_support/new_nothrow.cc: New test. From-SVN: r263478
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