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GCC Administrator 2020-11-20 00:16:40 +00:00
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177
gcc/ChangeLog
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2020-11-19 Jakub Jelinek <jakub@redhat.com>
PR tree-optimization/91029
* range-op.cc (operator_trunc_mod::op1_range): Don't require signed
types, nor require that op2 >= 0. Implement (a % b) >= x && x > 0
implies a >= x and (a % b) <= x && x < 0 implies a <= x.
(operator_trunc_mod::op2_range): New method.
2020-11-19 Andrew MacLeod <amacleod@redhat.com>
PR tree-optimization/93781
* range-op.cc (get_shift_range): Rename from
undefined_shift_range_check and now return valid shift ranges.
(operator_lshift::fold_range): Use result from get_shift_range.
(operator_rshift::fold_range): Ditto.
2020-11-19 Jan Hubicka <jh@suse.cz>
* fold-const.c (operand_compare::operand_equal_p): Fix thinko in
COMPONENT_REF handling and guard types_same_for_odr by
virtual_method_call_p.
(operand_compare::hash_operand): Likewise.
2020-11-19 Jakub Jelinek <jakub@redhat.com>
PR c/97860
* tree.c (array_type_nelts): For complete arrays with zero min
and NULL max and zero size return -1.
2020-11-19 Nathan Sidwell <nathan@acm.org>
* configure.ac: Add tests for fstatat, sighandler_t, O_CLOEXEC,
unix-domain and ipv6 sockets.
* config.in: Rebuilt.
* configure: Rebuilt.
2020-11-19 Dimitar Dimitrov <dimitar@dinux.eu>
* config/pru/alu-zext.md: Add lmbd patterns for zero_extend
variants.
* config/pru/pru.c (enum pru_builtin): Add HALT and LMBD.
(pru_init_builtins): Ditto.
(pru_builtin_decl): Ditto.
(pru_expand_builtin): Ditto.
* config/pru/pru.h (CLZ_DEFINED_VALUE_AT_ZERO): Define PRU
value for CLZ with zero value parameter.
* config/pru/pru.md: Add halt, lmbd and clz patterns.
* doc/extend.texi: Document PRU builtins.
2020-11-19 Richard Sandiford <richard.sandiford@arm.com>
* doc/invoke.texi (-fvect-cost-model): Add a very-cheap model.
* common.opt (fvect-cost-model=): Add very-cheap as a possible option.
(fsimd-cost-model=): Likewise.
(vect_cost_model): Add very-cheap.
* flag-types.h (vect_cost_model): Add VECT_COST_MODEL_VERY_CHEAP.
Put the values in order of increasing aggressiveness.
* tree-vect-data-refs.c (vect_enhance_data_refs_alignment): Use
range checks when comparing against VECT_COST_MODEL_CHEAP.
(vect_prune_runtime_alias_test_list): Do not allow any alias
checks for the very-cheap cost model.
* tree-vect-loop.c (vect_analyze_loop_costing): Do not allow
any peeling for the very-cheap cost model. Also require one
iteration of the vector loop to pay for itself.
2020-11-19 Wilco Dijkstra <wdijkstr@arm.com>
* config/aarch64/aarch64.c (neoversen1_tunings): Use new
cortexa76_extra_costs.
(neoversev1_tunings): Likewise.
(neoversen2_tunines): Likewise.
* config/arm/aarch-cost-tables.h (cortexa76_extra_costs):
add new costs.
2020-11-19 Wilco Dijkstra <wdijkstr@arm.com>
* config/aarch64/aarch64.c (aarch64_expand_cpymem): Cleanup code and
comments, tweak expansion decisions and improve tail expansion.
2020-11-19 Richard Biener <rguenther@suse.de>
* fold-const.c (operand_compare::hash_operand): Fix typo.
2020-11-19 Richard Biener <rguenther@suse.de>
* tree-ssa-reassoc.c (get_rank): Refactor to consistently
use the cache and dump ranks assigned.
2020-11-19 Jan Hubicka <jh@suse.cz>
* fold-const.c (operand_compare::operand_equal_p): More OBJ_TYPE_REF
matching to correct place; drop OEP_ADDRESS_OF for TOKEN, OBJECT and
class.
(operand_compare::hash_operand): Hash ODR type for OBJ_TYPE_REF.
2020-11-19 Joel Hutton <joel.hutton@arm.com>
* config/aarch64/aarch64-simd.md: Add vec_widen_lshift_hi/lo<mode>
patterns.
* tree-vect-stmts.c (vectorizable_conversion): Fix for widen_lshift
case.
2020-11-19 Joel Hutton <joel.hutton@arm.com>
* doc/generic.texi: Document new widen_plus/minus_lo/hi tree codes.
* doc/md.texi: Document new widenening add/subtract hi/lo optabs.
* expr.c (expand_expr_real_2): Add widen_add, widen_subtract cases.
* optabs-tree.c (optab_for_tree_code): Add case for widening optabs.
* optabs.def (OPTAB_D): Define vectorized widen add, subtracts.
* tree-cfg.c (verify_gimple_assign_binary): Add case for widening adds,
subtracts.
* tree-inline.c (estimate_operator_cost): Add case for widening adds,
subtracts.
* tree-vect-generic.c (expand_vector_operations_1): Add case for
widening adds, subtracts
* tree-vect-patterns.c (vect_recog_widen_add_pattern): New recog
pattern.
(vect_recog_widen_sub_pattern): New recog pattern.
(vect_recog_average_pattern): Update widened add code.
(vect_recog_average_pattern): Update widened add code.
* tree-vect-stmts.c (vectorizable_conversion): Add case for widened add,
subtract.
(supportable_widening_operation): Add case for widened add, subtract.
* tree.def
(WIDEN_PLUS_EXPR): New tree code.
(WIDEN_MINUS_EXPR): New tree code.
(VEC_WIDEN_ADD_HI_EXPR): New tree code.
(VEC_WIDEN_PLUS_LO_EXPR): New tree code.
(VEC_WIDEN_MINUS_HI_EXPR): New tree code.
(VEC_WIDEN_MINUS_LO_EXPR): New tree code.
2020-11-19 Joel Hutton <joel.hutton@arm.com>
* config/aarch64/aarch64-simd.md: New patterns
vec_widen_saddl_lo/hi_<mode>.
2020-11-19 Richard Biener <rguenther@suse.de>
PR tree-optimization/97901
* tree-ssa-propagate.c (clean_up_loop_closed_phi): Compute
dominators and use replace_uses_by.
2020-11-19 Eric Botcazou <ebotcazou@adacore.com>
* dwarf2out.h (struct fixed_point_type_info) <scale_factor>: Turn
numerator and denominator into a tree.
* dwarf2out.c (base_type_die): In the case of a fixed-point type
with arbitrary scale factor, call add_scalar_info on numerator and
denominator to emit the appropriate attributes.
2020-11-19 Richard Biener <rguenther@suse.de>
PR tree-optimization/97897
* tree-complex.c (complex_propagate::visit_stmt): Make sure
abnormally used SSA names are VARYING.
(complex_propagate::visit_phi): Likewise.
* tree-ssa.c (verify_phi_args): Verify PHI arguments on abnormal
edges are SSA names.
2020-11-19 Uroš Bizjak <ubizjak@gmail.com>
* config/i386/i386.md (*<absneg:code><mode>2_i387_1):
Disable for TARGET_SSE_MATH modes.
2020-11-19 Jeff Law <law@redhat.com>
* config/h8300/constraints.md (R constraint): Add argument to call
to h8300_shift_needs_scratch_p.
(S and T constraints): Similary.
* config/h8300/h8300-protos.h: Update h8300_shift_needs_scratch_p
prototype.
* config/h8300/h8300.c (expand_a_shift): Emit a different pattern
if the shift does not require a scratch register.
(h8300_shift_needs_scratch_p): Refine to be more accurate.
* config/h8300/shiftrotate.md (shiftqi_noscratch): New pattern.
(shifthi_noscratch, shiftsi_noscratch): Similarly.
2020-11-18 Roger Sayle <roger@nextmovesoftware.com>
PR middle-end/85811

2
gcc/DATESTAMP
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20201119
20201120

15
gcc/ada/ChangeLog
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2020-11-19 Eric Botcazou <ebotcazou@adacore.com>
PR ada/97805
* adaint.c: Include climits in C++ and limits.h otherwise.
2020-11-19 Eric Botcazou <ebotcazou@adacore.com>
* exp_dbug.adb (Is_Handled_Scale_Factor): Delete.
(Get_Encoded_Name): Do not call it.
* gcc-interface/decl.c (gnat_to_gnu_entity) <Fixed_Point_Type>:
Tidy up and always use a meaningful description for arbitrary
scale factors.
* gcc-interface/misc.c (gnat_get_fixed_point_type_info): Remove
obsolete block and adjust the description of the scale factor.
2020-11-18 Jakub Jelinek <jakub@redhat.com>
* gcc-interface/Make-lang.in (ada.serial): New goal.

6
gcc/c/ChangeLog
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2020-11-19 Jakub Jelinek <jakub@redhat.com>
PR c/97860
* c-decl.c (get_parm_array_spec): Bail out of nelts is
error_operand_p.
2020-11-18 Jakub Jelinek <jakub@redhat.com>
* Make-lang.in (c.serial): New goal.

45
gcc/cp/ChangeLog
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2020-11-19 Nathan Sidwell <nathan@acm.org>
* cp-tree.h (struct spec_entry): Moved from pt.c.
(walk_specializations, match_mergeable_specialization)
(get_mergeable_specialization_flags)
(add_mergeable_specialization): Declare.
* pt.c (struct spec_entry): Moved to cp-tree.h.
(walk_specializations, match_mergeable_specialization)
(get_mergeable_specialization_flags)
(add_mergeable_specialization): New.
2020-11-19 Nathan Sidwell <nathan@acm.org>
* cp-tree.h (struct constexpr_fundef): Moved from constexpr.c.
(maybe_save_constexpr_fundef): Declare.
(register_constexpr_fundef): Take constexpr_fundef object, return
void.
* decl.c (mabe_save_function_definition): Delete, functionality
moved to maybe_save_constexpr_fundef.
(emit_coro_helper, finish_function): Adjust.
* constexpr.c (struct constexpr_fundef): Moved to cp-tree.h.
(constexpr_fundef_hasher::equal): Constify.
(constexpr_fundef_hasher::hash): Constify.
(retrieve_constexpr_fundef): Make non-static.
(maybe_save_constexpr_fundef): Break out checking and duplication
from ...
(register_constexpr_fundef): ... here. Just register the constexpr.
2020-11-19 Marek Polacek <polacek@redhat.com>
PR c++/97523
* init.c (build_new): When value-initializing an array new,
leave the INIT as an empty vector.
2020-11-19 Marek Polacek <polacek@redhat.com>
PR c++/97895
* pt.c (do_auto_deduction): Don't crash when the constructor has
zero elements.
2020-11-19 Nathan Sidwell <nathan@acm.org>
PR c++/97905
* decl.c (duplicate_decls): Relax new assert.
2020-11-18 Iain Sandoe <iain@sandoe.co.uk>
* parser.c (cp_parser_objc_valid_prefix_attributes): Check

74
gcc/testsuite/ChangeLog
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@ -1,3 +1,77 @@
2020-11-19 Jakub Jelinek <jakub@redhat.com>
PR tree-optimization/91029
* gcc.dg/tree-ssa/pr91029-1.c: New test.
* gcc.dg/tree-ssa/pr91029-2.c: New test.
2020-11-19 Andrew MacLeod <amacleod@redhat.com>
* gcc.dg/tree-ssa/pr93781-1.c: New.
* gcc.dg/tree-ssa/pr93781-2.c: New.
* gcc.dg/tree-ssa/pr93781-3.c: New.
2020-11-19 Jakub Jelinek <jakub@redhat.com>
PR c/97860
* gcc.dg/pr97860.c: New test.
2020-11-19 Marek Polacek <polacek@redhat.com>
PR c++/97523
* g++.dg/expr/anew5.C: New test.
* g++.dg/expr/anew6.C: New test.
2020-11-19 Marek Polacek <polacek@redhat.com>
PR c++/97895
* g++.dg/cpp0x/auto54.C: New test.
2020-11-19 Nathan Sidwell <nathan@acm.org>
PR c++/97905
* g++.dg/lookup/pr97905.C: New.
2020-11-19 Dimitar Dimitrov <dimitar@dinux.eu>
* gcc.target/pru/halt.c: New test.
* gcc.target/pru/lmbd.c: New test.
2020-11-19 Richard Sandiford <richard.sandiford@arm.com>
* gcc.dg/vect/vect-cost-model-1.c: New test.
* gcc.dg/vect/vect-cost-model-2.c: Likewise.
* gcc.dg/vect/vect-cost-model-3.c: Likewise.
* gcc.dg/vect/vect-cost-model-4.c: Likewise.
* gcc.dg/vect/vect-cost-model-5.c: Likewise.
* gcc.dg/vect/vect-cost-model-6.c: Likewise.
2020-11-19 Richard Biener <rguenther@suse.de>
* gcc.dg/pr97897.c: Add dg-options.
2020-11-19 Joel Hutton <joel.hutton@arm.com>
* gcc.target/aarch64/vect-widen-lshift.c: New test.
2020-11-19 Joel Hutton <joel.hutton@arm.com>
* gcc.target/aarch64/vect-widen-add.c: New test.
* gcc.target/aarch64/vect-widen-sub.c: New test.
2020-11-19 Richard Biener <rguenther@suse.de>
PR tree-optimization/97901
* gcc.dg/torture/pr97901.c: New testcase.
2020-11-19 Richard Biener <rguenther@suse.de>
PR tree-optimization/97897
* gcc.dg/pr97897.c: New testcase.
2020-11-19 Uroš Bizjak <ubizjak@gmail.com>
* gcc.target/i386/pr97887.c: New test.
2020-11-18 Roger Sayle <roger@nextmovesoftware.com>
PR middle-end/85811

33
libcpp/ChangeLog
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2020-11-19 Nathan Sidwell <nathan@acm.org>
* include/cpplib.h (enum cpp_main_search): New.
(struct cpp_options): Add main_search field.
(cpp_main_loc): Declare.
(cpp_retrofit_as_include): Declare.
* internal.h (struct cpp_reader): Add main_loc field.
(_cpp_in_main_source_file): Not main if main is a header.
* init.c (cpp_read_main_file): Use main_search option to locate
main file. Set main_loc
* files.c (cpp_retrofit_as_include): New.
2020-11-19 Nathan Sidwell <nathan@acm.org>
* internal.h (cpp_in_system_header): Rename to ...
(_cpp_in_system_header): ... here.
(cpp_in_primary_file): Rename to ...
(_cpp_in_main_source_file): ... here. Compare main_file equality
and check main_search value.
* lex.c (maybe_va_opt_error, _cpp_lex_direct): Adjust for rename.
* macro.c (_cpp_builtin_macro_text): Likewise.
(replace_args): Likewise.
* directives.c (do_include_next): Likewise.
(do_pragma_once, do_pragma_system_header): Likewise.
* files.c (struct _cpp_file): Delete main_file field.
(pch_open): Check pfile->main_file equality.
(make_cpp_file): Drop cpp_reader parm, don't set main_file.
(_cpp_find_file): Adjust.
(_cpp_stack_file): Check pfile->main_file equality.
(struct report_missing_guard_data): Add cpp_reader field.
(report_missing_guard): Check pfile->main_file equality.
(_cpp_report_missing_guards): Adjust.
2020-11-18 Nathan Sidwell <nathan@acm.org>
* include/cpplib.h (struct cpp_options): Add module_directives

50
libstdc++-v3/ChangeLog
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2020-11-19 Jonathan Wakely <jwakely@redhat.com>
PR libstdc++/95989
* config/os/gnu-linux/os_defines.h (_GLIBCXX_NATIVE_THREAD_ID):
Define new macro to get reliable thread ID.
* include/bits/std_thread.h: (this_thread::get_id): Use new
macro if it's defined.
* testsuite/30_threads/jthread/95989.cc: New test.
* testsuite/30_threads/this_thread/95989.cc: New test.
2020-11-19 Jonathan Wakely <jwakely@redhat.com>
* testsuite/30_threads/async/async.cc: Include <thread>.
* testsuite/30_threads/future/members/93456.cc: Likewise.
2020-11-19 Jonathan Wakely <jwakely@redhat.com>
PR libstdc++/92546
* include/Makefile.am: Add new <bits/std_thread.h> header.
* include/Makefile.in: Regenerate.
* include/std/future: Include new header instead of <thread>.
* include/std/stop_token: Include new header instead of
<bits/gthr.h>.
(stop_token::_S_yield()): Use this_thread::yield().
(_Stop_state_t::_M_requester): Change type to std::thread::id.
(_Stop_state_t::_M_request_stop()): Use this_thread::get_id().
(_Stop_state_t::_M_remove_callback(_Stop_cb*)): Likewise.
Use __is_single_threaded() to decide whether to synchronize.
* include/std/thread (thread, operator==, this_thread::get_id)
(this_thread::yield): Move to new header.
(operator<=>, operator!=, operator<, operator<=, operator>)
(operator>=, hash<thread::id>, operator<<): Define even when
gthreads not available.
* src/c++11/thread.cc: Include <memory>.
* include/bits/std_thread.h: New file.
(thread, operator==, this_thread::get_id, this_thread::yield):
Define even when gthreads not available.
[!_GLIBCXX_HAS_GTHREADS] (thread::join, thread::detach)
(thread::hardware_concurrency): Define inline.
2020-11-19 Jonathan Wakely <jwakely@redhat.com>
PR libstdc++/93421
PR libstdc++/93456
* src/c++11/futex.cc (syscall_time_t): New typedef for
the type of the syscall_timespec::tv_sec member.
(relative_timespec, _M_futex_wait_until)
(_M_futex_wait_until_steady): Use syscall_time_t in overflow
checks, not time_t.
2020-11-18 Patrick Palka <ppalka@redhat.com>
* include/std/ranges (join_view::_Iterator::_M_satisfy): Uglify