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GCC Administrator 2020-12-02 00:16:41 +00:00
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174
gcc/ChangeLog
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2020-12-01 Eugene Rozenfeld <Eugene.Rozenfeld@microsoft.com>
PR tree-optimization/96708
* match.pd: New pattern for comparing X with MAX (X, Y)
or MIN (X, y).
2020-12-01 Jeff Law <law@redhat.com>
* config/mcore/t-mcore (MULTILIB_EXCEPTIONS): Define.
2020-12-01 Martin Sebor <msebor@redhat.com>
PR middle-end/97595
* tree.c (component_ref_size): Fail when DECL_SIZE != TYPE_SIZE.
* tree.h (DECL_SIZE, TYPE_SIZE): Update comment.
2020-12-01 JeanHeyd Meneide <phdofthehouse@gmail.com>
* doc/cpp.texi: Document new macros.
2020-12-01 Martin Sebor <msebor@redhat.com>
PR middle-end/97373
* builtins.c (compute_objsize): Rename...
(compute_objsize_r): to this. Change order and types of arguments.
Use new argument. Adjust calls to self.
(access_ref::get_ref): New member function.
(pointer_query::pointer_query): New member function.
(pointer_query::get_ref): Same.
(pointer_query::put_ref): Same.
(handle_min_max_size): Change order and types of arguments.
(maybe_emit_free_warning): Add a test.
* builtins.h (class pointer_query): New class.
(compute_objsize): Declare an overload.
* gimple-ssa-sprintf.c (get_destination_size): Add argument.
(handle_printf_call): Change argument type.
* tree-ssa-strlen.c (adjust_last_stmt): Add an argument and use it.
(maybe_warn_overflow): Same.
(handle_builtin_strcpy): Same.
(maybe_diag_stxncpy_trunc): Same.
(handle_builtin_memcpy): Change argument type. Adjust calls.
(handle_builtin_strcat): Same.
(handle_builtin_memset): Same.
(handle_store): Same.
(strlen_check_and_optimize_call): Same.
(check_and_optimize_stmt): Same.
(strlen_dom_walker): Add new data members.
(strlen_dom_walker::before_dom_children): Use new member.
(printf_strlen_execute): Dump cache performance counters. Remove
objsize pass cleanup.
* tree-ssa-strlen.h (maybe_diag_stxncpy_trunc): Add argument.
(handle_printf_call): Change argument type.
2020-12-01 Eric Botcazou <ebotcazou@adacore.com>
* function.c (gen_call_used_regs_seq): In a function subject to the
leaf register optimization, skip registers that are not present.
* config/sparc/sparc.c (TARGET_ZERO_CALL_USED_REGS): Define to...
(sparc_zero_call_used_regs): ...this. New function.
2020-12-01 Iain Sandoe <iain@sandoe.co.uk>
* config/darwin.h: Remove unused 'X' specs in the link spec
rather than driver self-specs.
2020-12-01 Nathan Sidwell <nathan@acm.org>
* params.opt (lazy-modules): New.
* timevar.def (TV_MODULE_IMPORT, TV_MODULE_EXPORT)
(TV_MODULE_MAPPER): New.
2020-12-01 Jakub Jelinek <jakub@redhat.com>
PR rtl-optimization/97459
* optabs.c (expand_doubleword_mod): Punt early for even op1.
(expand_binop): Don't require lshr_optab double-word handler.
2020-12-01 Jakub Jelinek <jakub@redhat.com>
PR rtl-optimization/97954
* loop-invariant.c (find_invariant_insn): Punt on JUMP_P insns.
2020-12-01 Iain Sandoe <iain@sandoe.co.uk>
* configure.ac (check leb128 support): Check that assemblers both
accept the LEB128 directives and also give the expected output.
Add a test for uleb128 with the MSB set for a 64 bit value.
* configure: Regenerated.
2020-12-01 Iain Sandoe <iain@sandoe.co.uk>
* configure: Regnerated.
2020-12-01 Ilya Leoshkevich <iii@linux.ibm.com>
* optabs-tree.c (vec_cmp_icode_p): New function.
(vec_cmp_eq_icode_p): New function.
(expand_vec_cmp_expr_p): Use vec_cmp_icode_p and
vec_cmp_eq_icode_p.
(vcond_icode_p): Use get_rtx_code_1, just to be uniform with
vec_cmp_icode_p.
* optabs.c (unsigned_optab_p): New function.
(insn_predicate_matches_p): New function.
(can_vec_cmp_compare_p): New function.
(can_vcond_compare_p): Use unsigned_optab_p and
insn_predicate_matches_p.
(get_rtx_code): Use get_rtx_code_1.
(get_rtx_code_1): Version of get_rtx_code that returns UNKNOWN
instead of asserting.
* optabs.h (can_vec_cmp_compare_p): New function.
(get_rtx_code_1): New function.
2020-12-01 Martin Liska <mliska@suse.cz>
PR tree-optimization/14799
PR ipa/88702
* Makefile.in: Add gimple-if-to-switch.o.
* dbgcnt.def (DEBUG_COUNTER): Add new debug counter.
* passes.def: Include new pass_if_to_switch pass.
* timevar.def (TV_TREE_IF_TO_SWITCH): New timevar.
* tree-pass.h (make_pass_if_to_switch): New.
* tree-ssa-reassoc.c (struct operand_entry): Move to the header.
(dump_range_entry): Move to header file.
(debug_range_entry): Likewise.
(no_side_effect_bb): Make it global.
* tree-switch-conversion.h (simple_cluster::simple_cluster):
Add inline for couple of functions in order to prevent error
about multiple defined symbols.
* gimple-if-to-switch.cc: New file.
* tree-ssa-reassoc.h: New file.
2020-12-01 Marius Hillenbrand <mhillen@linux.ibm.com>
* configure.ac: Add configure option
--enable-s390-excess-float-precision and check to derive default
from glibc.
* config/s390/s390.c: Guard s390_excess_precision with an ifdef
for ENABLE_S390_EXCESS_FLOAT_PRECISION.
* doc/install.texi: Document --enable-s390-excess-float-precision.
* configure: Regenerate.
* config.in: Regenerate.
2020-12-01 Martin Liska <mliska@suse.cz>
PR ipa/98057
* symtab.c (symtab_node::set_section_for_node): Drop
implicit_section if x_section is NULL.
2020-12-01 Jakub Jelinek <jakub@redhat.com>
PR target/98063
* config/i386/i386-expand.c (ix86_expand_call): Handle non-plt
CM_LARGE_PIC calls.
2020-12-01 Richard Biener <rguenther@suse.de>
PR middle-end/98070
* builtins.c (builtin_fnspec): realloc is ".Cw ".
2020-12-01 Jakub Jelinek <jakub@redhat.com>
* dwarf2out.c (gen_compile_unit_die): Treat GNU C++20
like C++14 for -gdwarf-5.
2020-12-01 Jakub Jelinek <jakub@redhat.com>
PR debug/97989
* gcc.c (cpp_unique_options): Add -dD if %:debug-level-gt(2)
rather than g3|ggdb3|gstabs3|gxcoff3|gvms3.
2020-12-01 Kito Cheng <kito.cheng@sifive.com>
* config.gcc (riscv*-*-*): Drop some commited accidentally code.
2020-11-30 Jeff Law <law@redhat.com>
* symtab.c (set_section_for_node): Add function comment.

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gcc/DATESTAMP
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20201201
20201202

29
gcc/c-family/ChangeLog
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2020-12-01 JeanHeyd Meneide <phdofthehouse@gmail.com>
* c-cppbuiltin.c (c_cpp_builtins): Add predefined
{__GNUC_EXECUTION_CHARSET_NAME} and
_WIDE_EXECUTION_CHARSET_NAME} macros.
2020-12-01 Nathan Sidwell <nathan@acm.org>
* c-common.c (module, import, export): New internal tokens (with
trailing space).
* c-common.h (RID__MODULE, RID__IMPORT & RID__EXPORT): Enumerate
them.
(D_CXX_MODULES, D_CXX_MODULES_FLAGS): Enable them.
* c-cppbuiltin.c (c_cpp_builtins): Feature macro.
2020-12-01 Nathan Sidwell <nathan@acm.org>
* c-opts.c (c_common_init_options): Ask for module dependencies.
(c_common_handle_option): Handle -Mmodules -Mno-modules.
* c-pch.c (c_common_valid_pch): ... does not play with C++
modules.
* c.opt (Mmodules, Mno-modules): New preprocessor dependency
options.
(fmodules-ts, fmodule-header, fmodule-implicit-inline)
(fmodule-only, fmodule-mapper, fmodule-lazy)
(fmodule-version-ignore, Winvalid-imported-macros)
(flang-info-include-translate, flang-info-include-translate-not):
New options
2020-11-28 Eric Botcazou <ebotcazou@adacore.com>
* c-ada-spec.c (dump_nested_type) <RECORD_TYPE>: Remove obsolete code.

25
gcc/cp/ChangeLog
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2020-12-01 Ville Voutilainen <ville.voutilainen@gmail.com>
PR c++/98054
* cxx-pretty-print.c (pp_cxx_trait_expression):
Add support for __is_nothrow_{assignable,constructible}.
2020-12-01 Jakub Jelinek <jakub@redhat.com>
PR c++/98072
* parser.c (cp_parser_omp_depobj): Suppress location wrappers when
parsing depend clause.
2020-12-01 Nathan Sidwell <nathan@acm.org>
* lex.c (init_reswords): Maybe enable module keywords.
2020-12-01 Nathan Sidwell <nathan@acm.org>
* lang-specs.h: Add module-related options.
2020-12-01 Iain Sandoe <iain@sandoe.co.uk>
* parser.c (cp_parser_declaration): Add a not about where
attributes may be placed.
2020-11-27 Martin Sebor <msebor@redhat.com>
* error.c (add_quotes): Revert previous change and use pragma to

111
gcc/testsuite/ChangeLog
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2020-12-01 Eugene Rozenfeld <Eugene.Rozenfeld@microsoft.com>
* gcc.dg/pr96708-negative.c: New test.
* gcc.dg/pr96708-positive.c: New test.
2020-12-01 Martin Sebor <msebor@redhat.com>
PR middle-end/97595
* g++.dg/warn/Warray-bounds-14.C: New test.
* g++.dg/warn/Wstringop-overflow-6.C: New test.
2020-12-01 Jeff Law <law@redhat.com>
* gcc.dg/tree-ssa/pr96480.c: Disable jump table optimization
2020-12-01 JeanHeyd Meneide <phdofthehouse@gmail.com>
* c-c++-common/cpp/wide-narrow-predef-macros.c: New test.
2020-12-01 Jeff Law <law@redhat.com>
* gcc.dg/pr46309-2.c: Add -fno-bit-tests and -fno-jump-tables
to avoid compromising the test.
2020-12-01 Jakub Jelinek <jakub@redhat.com>
PR c++/98072
* c-c++-common/gomp/depobj-2.c: New test.
2020-12-01 Martin Sebor <msebor@redhat.com>
PR middle-end/97373
* gcc.dg/tree-ssa/builtin-sprintf-warn-25.c: New test.
2020-12-01 Martin Liska <mliska@suse.cz>
* g++.dg/tree-ssa/if-to-switch-1.C: Do not allow newlines
in .* pattern.
* gcc.dg/tree-ssa/if-to-switch-1.c: Likewise.
* gcc.dg/tree-ssa/if-to-switch-2.c: Likewise.
* gcc.dg/tree-ssa/if-to-switch-3.c: Likewise.
* gcc.dg/tree-ssa/if-to-switch-5.c: Likewise.
2020-12-01 Martin Liska <mliska@suse.cz>
PR testsuite/98085
* g++.dg/tree-ssa/if-to-switch-1.C: Do not expect precise number
of BBs.
* gcc.dg/tree-ssa/if-to-switch-1.c: Likewise.
* gcc.dg/tree-ssa/if-to-switch-2.c: Likewise. Find better name
for the function.
* gcc.dg/tree-ssa/if-to-switch-3.c: Likewise. Find better name
for the function.
* gcc.dg/tree-ssa/if-to-switch-5.c: Likewise.
2020-12-01 Jakub Jelinek <jakub@redhat.com>
PR rtl-optimization/97954
* gcc.dg/pr97954.c: New test.
2020-12-01 Matthew Malcomson <matthew.malcomson@arm.com>
* lib/hwasan-dg.exp (check_effective_target_hwaddress_exec): Fix
check for correct kernel version.
2020-12-01 Martin Liska <mliska@suse.cz>
PR tree-optimization/14799
PR ipa/88702
* gcc.dg/tree-ssa/pr96480.c: Disable if-to-switch conversion.
* gcc.dg/tree-ssa/reassoc-32.c: Likewise.
* g++.dg/tree-ssa/if-to-switch-1.C: New test.
* gcc.dg/tree-ssa/if-to-switch-1.c: New test.
* gcc.dg/tree-ssa/if-to-switch-2.c: New test.
* gcc.dg/tree-ssa/if-to-switch-3.c: New test.
* gcc.dg/tree-ssa/if-to-switch-4.c: New test.
* gcc.dg/tree-ssa/if-to-switch-5.c: New test.
* gcc.dg/tree-ssa/if-to-switch-6.c: New test.
* gcc.dg/tree-ssa/if-to-switch-7.c: New test.
* gcc.dg/tree-ssa/if-to-switch-8.c: New test.
2020-12-01 Marius Hillenbrand <mhillen@linux.ibm.com>
* gcc.target/s390/float_t-1.c: New test.
* gcc.target/s390/float_t-2.c: New test.
2020-12-01 Martin Liska <mliska@suse.cz>
* g++.dg/torture/pr93347.C: Reduce and remove LIT keywords.
2020-12-01 Martin Liska <mliska@suse.cz>
PR ipa/98057
* g++.dg/ipa/pr98057.C: New test.
2020-12-01 Jakub Jelinek <jakub@redhat.com>
PR target/98063
* gcc.target/i386/pr98063.c: New test.
2020-12-01 Jakub Jelinek <jakub@redhat.com>
* g++.dg/debug/dwarf2/lang-cpp17.C: New test.
* g++.dg/debug/dwarf2/lang-cpp20.C: New test.
2020-12-01 Jakub Jelinek <jakub@redhat.com>
PR debug/97989
* gcc.dg/cpp/pr97989-1.c: New test.
* gcc.dg/cpp/pr97989-2.c: New test.
2020-11-30 David Malcolm <dmalcolm@redhat.com>
* gcc.dg/plugin/analyzer_gil_plugin.c: New test.

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2020-12-01 JeanHeyd Meneide <phdofthehouse@gmail.com>
* charset.c (init_iconv_desc): Initialize "to" and "from" fields.
* directives.c (cpp_get_narrow_charset_name): New function.
(cpp_get_wide_charset_name): Likewise.
* include/cpplib.h (cpp_get_narrow_charset_name): Prototype.
(cpp_get_wide_charset_name): Likewise.
* internal.h (cset_converter): Add "to" and "from" fields.
2020-11-27 Joseph Myers <joseph@codesourcery.com>
PR preprocessor/97602

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libstdc++-v3/ChangeLog
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2020-12-01 Thomas Rodgers <trodgers@redhat.com>
* include/bits/atomic_base.h: Replace usage of
_GLIBCXX_HAVE_ATOMIC_WAIT with __cpp_lib_atomic_wait.
* include/bits/atomic_timed_wait.h: Likewise.
* include/bits/atomic_wait.h: Define __cpp_lib_atomic_wait
feature test macro.
* include/bits/semaphore_base.h: Replace usage of
_GLIBCXX_HAVE_ATOMIC_WAIT with __cpp_lib_atomic_wait.
* include/std/atomic: Likewise.
* include/std/latch: Likewise.
* include/std/semaphore: Likewise.
* include/std/version: Define __cpp_lib_atomic wait
feature test macro and replace usage of
_GLIBCXX_HAVE_ATOMIC_WAIT.
* testsuite/29_atomics/atomic/wait_notify/1.cc: New test.
* testsuite/29_atomics/atomic/wait_notify/2.cc: Likewise.
2020-12-01 Michael Weghorn <m.weghorn@posteo.de>
* python/libstdcxx/v6/printers.py (StdBitIteratorPrinter)
(StdBitReferencePrinter): Add pretty-printers for
_Bit_reference, _Bit_iterator and _Bit_const_iterator.
* testsuite/libstdc++-prettyprinters/simple.cc: Test
std::_Bit_reference, std::_Bit_iterator and
std::_Bit_const_iterator.
* testsuite/libstdc++-prettyprinters/simple11.cc: Likewise.
2020-12-01 Jonathan Wakely <jwakely@redhat.com>
* include/bits/c++config (_GLIBCXX_HAS_BUILTIN): Define macro to
work around different implementations of __has_builtin.
(_GLIBCXX_HAVE_BUILTIN_HAS_UNIQ_OBJ_REP)
(_GLIBCXX_HAVE_BUILTIN_IS_AGGREGATE)
(_GLIBCXX_HAVE_BUILTIN_IS_CONSTANT_EVALUATED)
(_GLIBCXX_HAVE_BUILTIN_IS_SAME, _GLIBCXX_HAVE_BUILTIN_LAUNDER):
Define using _GLIBCXX_HAS_BUILTIN.
2020-12-01 Jonathan Wakely <jwakely@redhat.com>
* testsuite/27_io/basic_istream/get/char/lwg3464.cc: Add
dg-timeout-factor directive.
* testsuite/27_io/basic_istream/get/wchar_t/lwg3464.cc:
Likewise.
2020-12-01 Jonathan Wakely <jwakely@redhat.com>
PR libstdc++/98003
* testsuite/27_io/basic_syncbuf/sync_ops/1.cc: Add options for
libatomic.
2020-11-30 Jonathan Wakely <jwakely@redhat.com>
* doc/doxygen/user.cfg.in (INPUT): Add <latch> and <semaphore>.