cp_parser_declaration copies tokens to local variables, before inspecting
(some of) their fields. There's no need. Just point at them in the token
buffer -- they don't move. Also, we never look at the second token if the
first is EOF, so no need for some kind of dummy value in that case.
gcc/cp/
* parser.c (cp_parser_declaration): Avoid copying tokens.
(cp_parser_block_declaration): RAII token pointer.
gcc/ada/
* exp_aggr.adb (Flatten): Adjust description.
(Convert_To_Positional): Remove obsolete ??? comment and use
Compile_Time_Known_Value in the final test.
gcc/ada/
* par-ch4.adb (P_Iterated_Component_Association): Extended to
recognzize the similar Iterated_Element_Association. This node
is only generated when an explicit Key_Expression is given.
Otherwise the distinction between the two iterated forms is done
during semantic analysis.
* sinfo.ads: New node N_Iterated_Element_Association, for
Ada202x container aggregates. New field Key_Expression.
* sinfo.adb: Subprograms for new node and newn field.
* sem_aggr.adb (Resolve_Iterated_Component_Association): Handle
the case where the Iteration_Scheme is an
Iterator_Specification.
* exp_aggr.adb (Wxpand_Iterated_Component): Handle a component
with an Iterated_Component_Association, generate proper loop
using given Iterator_Specification.
* exp_util.adb (Insert_Axtions): Handle new node as other
aggregate components.
* sem.adb, sprint.adb: Handle new node.
* tbuild.adb (Make_Implicit_Loop_Statement): Handle properly a
loop with an Iterator_ specification.
gcc/ada/
* einfo.ads (Delayed Freezing and Elaboration): Adjust description.
* freeze.adb (Freeze_Object_Declaration): Likewise.
* sem_ch3.adb (Delayed_Aspect_Present): Likewise. Do not return
true for Alignment.
* sem_ch13.adb (Analyze_Aspect_Specifications): Do not always delay
for Alignment. Moreover, for Alignment and various Size aspects,
do not delay if the expression is an attribute whose prefix is the
Standard package.
gcc/ada/
* exp_spark.adb (Expand_SPARK_Delta_Or_Update): Apply scalar
range checks against the base type of an index type, not against
the index type itself.
gcc/ada/
* einfo.ads (Delayed Freezing and Elaboration): Minor tweaks.
Document the discrepancy between the aspect and the non-aspect
cases for alignment settings in object declarations.
gcc/ada/
* exp_ch3.adb (Freeze_Type): Remove warning in expander,
replaced by a corresponding error in sem_ch13.adb. Replace
RTE_Available by RTU_Loaded to avoid adding unnecessary
dependencies.
* sem_ch13.adb (Associate_Storage_Pool): New procedure.
(Analyze_Attribute_Definition_Clause
[Attribute_Simple_Storage_Pool| Attribute_Storage_Pool]): Call
Associate_Storage_Pool to add proper legality checks on
subpools.
gcc/ada/
* sem_ch3.adb (Delayed_Aspect_Present): Fix oversight in loop.
* freeze.adb (Freeze_Object_Declaration): Use Declaration_Node
instead of Parent for the sake of consistency.
gcc/ada/
* doc/gnat_ugn/about_this_guide.rst: Remove old section and
update for Ada 202x.
* doc/gnat_ugn/getting_started_with_gnat.rst: Add a system
requirements section. Remove obsolete section and minimal
rewording on the getting started section.
* gnat_ugn.texi: Regenerate.
gcc/ada/
* exp_ch5.adb (Expand_Assign_Array): Use short-circuit operator
(style).
* sem_res.adb (Resolve_Indexed_Component): Fix style in comment.
* sem_util.adb (Is_Effectively_Volatile_Object): Handle slices
just like indexed components; handle qualified expressions and
type conversions lie in Is_OK_Volatile_Context.
(Is_OK_Volatile_Context): Handle qualified expressions just like
type conversions.
gcc/ada/
* sem_prag.adb (Atomic_Components): Simplify with Ekind_In.
(Complex_Representation): Fix type of E_Id, which just like when
for pragma Atomic_Components will hold an N_Identifier node, not
an entity.
* sem_util.adb (Is_Effectively_Volatile): Refactor to avoid
unnecessary computation.
gcc/ada/
* exp_ch6.adb: Add a comma and fix a typo (machinary =>
machinery) in comment.
* exp_aggr.adb: Reformat, fix capitalization, and add a couple
of commas in a comment. Adjust columns in several code
fragments.
* sem_aggr.adb: Reformat and add a comma in a comment.
gcc/ada/
* sem_aggr.adb (Resolve_Iterated_Component_Association): New
procedure, internal to Resolve_Container_Aggregate, to complete
semantic analysis of Iterated_Component_Associations.
* exp_aggr.adb (Expand_Iterated_Component): New procedure,
internal to Expand_Container_Aggregate, to expand the construct
into an implicit loop that performs individual insertions into
the target aggregate.
gcc/ada/
* exp_ch6.adb (Make_Build_In_Place_Call_Allocator): Normalize
the associated node for internally generated objects to be like
their SOAAT counter-parts.
Parser error recovery can get confused by the tokens within a deferred
pragma, as treats those as regular tokens. This adjusts the recovery
so that the pragma is treated as a unit. Also, the preprocessor now
ensures that we never have an EOF token inside a pragma -- the pragma
is always closed first.
gcc/cp/
* parser.c (cp_parser_skip_to_closing_parenthesis_1): Deal with
meeting a deferred pragma.
(cp_parser_skip_to_end_of_statement): Likewise.
(cp_parser_skip_to_end_of_block_or_statement): Likewise.
(cp_parser_skip_to_pragma_eol): We should never meet EOF.
(cp_parser_omp_declare_simd): Likewise.
(cp_parser_omp_declare_reduction, cp_parser_oacc_routine)
(pragma_lex): Likewise.
gcc/testsuite/
* g++.dg/parse/pragma-recovery.C: New.
As the Fortran PR 95837 has been fixed, the test could be be added.
libgomp/ChangeLog:
* testsuite/libgomp.fortran/struct-elem-map-1.f90: Remove unused
variables; add character(kind=4) tests; update TODO comment.
The _mm512_{,mask_}cmp_p[ds]_mask and also _mm_{,mask_}cmp_s[ds]_mask
intrinsics have an argument which must have a constant passed to it
and so use an inline version only for ifdef __OPTIMIZE__ and have
a #define for -O0. But the _mm512_{,mask_}cmp*_p[ds]_mask intrinsics
don't need a constant argument, they are essentially the first
set with the constant added to them implicitly based on the comparison
name, and so there is no #define version for them (correctly).
But their inline versions are defined in between the first and s[ds]
set and so inside of ifdef __OPTIMIZE__, which means that with -O0
they aren't defined at all.
This patch fixes that by moving those after the #ifdef __OPTIMIZE #else
use #define #endif block.
2020-07-15 Jakub Jelinek <jakub@redhat.com>
PR target/96174
* config/i386/avx512fintrin.h (_mm512_cmpeq_pd_mask,
_mm512_mask_cmpeq_pd_mask, _mm512_cmplt_pd_mask,
_mm512_mask_cmplt_pd_mask, _mm512_cmple_pd_mask,
_mm512_mask_cmple_pd_mask, _mm512_cmpunord_pd_mask,
_mm512_mask_cmpunord_pd_mask, _mm512_cmpneq_pd_mask,
_mm512_mask_cmpneq_pd_mask, _mm512_cmpnlt_pd_mask,
_mm512_mask_cmpnlt_pd_mask, _mm512_cmpnle_pd_mask,
_mm512_mask_cmpnle_pd_mask, _mm512_cmpord_pd_mask,
_mm512_mask_cmpord_pd_mask, _mm512_cmpeq_ps_mask,
_mm512_mask_cmpeq_ps_mask, _mm512_cmplt_ps_mask,
_mm512_mask_cmplt_ps_mask, _mm512_cmple_ps_mask,
_mm512_mask_cmple_ps_mask, _mm512_cmpunord_ps_mask,
_mm512_mask_cmpunord_ps_mask, _mm512_cmpneq_ps_mask,
_mm512_mask_cmpneq_ps_mask, _mm512_cmpnlt_ps_mask,
_mm512_mask_cmpnlt_ps_mask, _mm512_cmpnle_ps_mask,
_mm512_mask_cmpnle_ps_mask, _mm512_cmpord_ps_mask,
_mm512_mask_cmpord_ps_mask): Move outside of __OPTIMIZE__ guarded
section.
* gcc.target/i386/avx512f-vcmppd-3.c: New test.
* gcc.target/i386/avx512f-vcmpps-3.c: New test.
As mentioned in the PR, we generate a useless movzbl insn before lock cmpxchg.
The problem is that the builtin for the char/short cases has the arguments
promoted to int and combine gives up, because the instructions have
MEM_VOLATILE_P arguments and recog in that case doesn't recognize anything
when volatile_ok is false, and nothing afterwards optimizes the
(reg:SI a) = (zero_extend:SI (reg:QI a))
... (subreg:QI (reg:SI a) 0) ...
The following patch fixes it at expansion time, we already have a function
that is meant to undo the promotion, so this just adds the very common case
to that.
2020-07-15 Jakub Jelinek <jakub@redhat.com>
PR target/96176
* builtins.c: Include gimple-ssa.h, tree-ssa-live.h and
tree-outof-ssa.h.
(expand_expr_force_mode): If exp is a SSA_NAME with different mode
from MODE and get_gimple_for_ssa_name is a cast from MODE, use the
cast's rhs.
* gcc.target/i386/pr96176.c: New test.
For very small loops (< 6 insns), it would be fine to unroll 4
times to run fast with less latency and better cache usage. Like
below loops:
while (i) a[--i] = NULL; while (p < e) *d++ = *p++;
With this patch enhances, we could see some performance improvement
for some workloads(e.g. SPEC2017).
2020-07-13 Jiufu Guo <guojiufu@cn.ibm.com>
* config/rs6000/rs6000.c (rs6000_loop_unroll_adjust): Refine hook.
Fixed in r224162. That came without a test so adding this one.
Previously, we issued a bogus "too few arguments to function" error.
gcc/testsuite/ChangeLog:
PR c++/59978
* g++.dg/cpp0x/vt-59978.C: New test.
Replace glibc specific __glibc_unlikely with __builtin_expect.
PR target/95443
* gcc.target/i386/pr95443-1.c (simple_strstr): Replace
__glibc_unlikely with __builtin_expect.
convert_like issues errors about bad_p conversions at the beginning
of the function, but in the ck_ref_bind case, it only issues them
after we've called convert_like on the next conversion.
This doesn't work as expected since r10-7096 because when we see
a conversion from/to class type in a template, we return early, thereby
missing the error, and a bad_p conversion goes by undetected. That
made the attached test to compile even though it should not.
I had thought that I could just move the ck_ref_bind/bad_p errors
above to the rest of them, but that regressed diagnostics because
expr then wasn't converted yet by the nested convert_like_real call.
So, for bad_p conversions, do the normal processing, but still return
the IMPLICIT_CONV_EXPR to avoid introducing trees that the template
processing can't handle well. This I achieved by adding a wrapper
function.
gcc/cp/ChangeLog:
PR c++/95789
PR c++/96104
PR c++/96179
* call.c (convert_like_real_1): Renamed from convert_like_real.
(convert_like_real): New wrapper for convert_like_real_1.
gcc/testsuite/ChangeLog:
PR c++/95789
PR c++/96104
PR c++/96179
* g++.dg/conversion/ref4.C: New test.
* g++.dg/conversion/ref5.C: New test.
* g++.dg/conversion/ref6.C: New test.
movsi_from_sf uses rldimi instruction, which will cause the compiler to ICE
in 32 bit mode. This patch limits the recently added pattern and call to
TARGET_POWERPC64.
2020-07-14 David Edelsohn <dje.gcc@gmail.com>
gcc/ChangeLog
* config/rs6000/rs6000.md (rotldi3_insert_sf): Add TARGET_POWERPC64
condition.
* config/rs6000/rs6000.c (rs6000_expand_vector_init): Add
TARGET_POWERPC64 requirement to TARGET_P8_VECTOR case.
The handling of PCH is a little trick, because we have to deal with it before
allocating memory. I found the layering somewhat confusing. This patch
reorganizes that, so that the stopping of PCH is done in exactly one place,
and the ordering of lexer creation relative to that is much clearer.
I also changed the error message about multiple source files as with C++20,
'modules' means something rather specific.
Other than the error message changes, no functional changes.
gcc/cp/
* parser.c (cp_lexer_alloc): Do not deal with PCH here.
(cp_lexer_new_main): Deal with PCH here. Store the tokens directly
into the buffer.
(cp_lexer_new_from_tokens): Assert last token isn't purged either.
(cp_lexer_get_preprocessor_token): Change first arg to flags, adjust.
(cp_parser_new): Pass the lexer in, don't create it here.
(cp_parser_translation_unit): Initialize access checks here.
(cp_parser_initial_pragma): First token is provided by caller,
don't deal with PCH stopping here. Adjust error message.
(c_parse_file): Adjust, change error message to avoid C++20 module
confusion.
The version of nvprof in CUDA 9.0 causes a hang when used to profile an
OpenACC program. This is because it calls acc_get_device_type from
a callback called during device initialization, which then attempts
to acquire acc_device_lock while it is already taken, resulting in
deadlock. This works around the issue by returning acc_device_none
from acc_get_device_type without attempting to acquire the lock when
initialization has not completed yet.
2020-07-14 Tom de Vries <tom@codesourcery.com>
Cesar Philippidis <cesar@codesourcery.com>
Thomas Schwinge <thomas@codesourcery.com>
Kwok Cheung Yeung <kcy@codesourcery.com>
libgomp/
* oacc-init.c (acc_init_state_lock, acc_init_state, acc_init_thread):
New variable.
(acc_init_1): Set acc_init_thread to pthread_self (). Set
acc_init_state to initializing at the start, and to initialized at the
end.
(self_initializing_p): New function.
(acc_get_device_type): Return acc_device_none if called by thread that
is currently executing acc_init_1.
* libgomp.texi (acc_get_device_type): Update documentation.
(Implementation Status and Implementation-Defined Behavior): Likewise.
* testsuite/libgomp.oacc-c-c++-common/acc_prof-init-2.c: New.
libiberty/ChangeLog:
PR demangler/96143
* cp-demangle.c (d_lambda): Don't add substitution candidate.
* testsuite/demangle-expected: Update a few existing test cases
accordingly, and add a new test case.
Supports conversion of tabs to spaces when outputting diagnostics. Also
adds -fdiagnostics-column-unit and -fdiagnostics-column-origin options to
control how the column number is output, thereby resolving the two PRs.
gcc/c-family/ChangeLog:
PR other/86904
* c-indentation.c (should_warn_for_misleading_indentation): Get
global tabstop from the new source.
* c-opts.c (c_common_handle_option): Remove handling of -ftabstop, which
is now a common option.
* c.opt: Likewise.
gcc/ChangeLog:
PR preprocessor/49973
PR other/86904
* common.opt: Handle -ftabstop here instead of in c-family
options. Add -fdiagnostics-column-unit= and
-fdiagnostics-column-origin= options.
* opts.c (common_handle_option): Handle the new options.
* diagnostic-format-json.cc (json_from_expanded_location): Add
diagnostic_context argument. Use it to convert column numbers as per
the new options.
(json_from_location_range): Likewise.
(json_from_fixit_hint): Likewise.
(json_end_diagnostic): Pass the new context argument to helper
functions above. Add "column-origin" field to the output.
(test_unknown_location): Add the new context argument to calls to
helper functions.
(test_bad_endpoints): Likewise.
* diagnostic-show-locus.c
(exploc_with_display_col::exploc_with_display_col): Support
tabstop parameter.
(layout_point::layout_point): Make use of class
exploc_with_display_col.
(layout_range::layout_range): Likewise.
(struct line_bounds): Clarify that the units are now always
display columns. Rename members accordingly. Add constructor.
(layout::print_source_line): Add support for tab expansion.
(make_range): Adapt to class layout_range changes.
(layout::maybe_add_location_range): Likewise.
(layout::layout): Adapt to class exploc_with_display_col changes.
(layout::calculate_x_offset_display): Support tabstop parameter.
(layout::print_annotation_line): Adapt to struct line_bounds changes.
(layout::print_line): Likewise.
(line_label::line_label): Add diagnostic_context argument.
(get_affected_range): Likewise.
(get_printed_columns): Likewise.
(layout::print_any_labels): Adapt to struct line_label changes.
(class correction): Add m_tabstop member.
(correction::correction): Add tabstop argument.
(correction::compute_display_cols): Use m_tabstop.
(class line_corrections): Add m_context member.
(line_corrections::line_corrections): Add diagnostic_context argument.
(line_corrections::add_hint): Use m_context to handle tabstops.
(layout::print_trailing_fixits): Adapt to class line_corrections
changes.
(test_layout_x_offset_display_utf8): Support tabstop parameter.
(test_layout_x_offset_display_tab): New selftest.
(test_one_liner_colorized_utf8): Likewise.
(test_tab_expansion): Likewise.
(test_diagnostic_show_locus_one_liner_utf8): Call the new tests.
(diagnostic_show_locus_c_tests): Likewise.
(test_overlapped_fixit_printing): Adapt to helper class and
function changes.
(test_overlapped_fixit_printing_utf8): Likewise.
(test_overlapped_fixit_printing_2): Likewise.
* diagnostic.h (enum diagnostics_column_unit): New enum.
(struct diagnostic_context): Add members for the new options.
(diagnostic_converted_column): Declare.
(json_from_expanded_location): Add new context argument.
* diagnostic.c (diagnostic_initialize): Initialize new members.
(diagnostic_converted_column): New function.
(maybe_line_and_column): Be willing to output a column of 0.
(diagnostic_get_location_text): Convert column number as per the new
options.
(diagnostic_report_current_module): Likewise.
(assert_location_text): Add origin and column_unit arguments for
testing the new functionality.
(test_diagnostic_get_location_text): Test the new functionality.
* doc/invoke.texi: Document the new options and behavior.
* input.h (location_compute_display_column): Add tabstop argument.
* input.c (location_compute_display_column): Likewise.
(test_cpp_utf8): Add selftests for tab expansion.
* tree-diagnostic-path.cc (default_tree_make_json_for_path): Pass the
new context argument to json_from_expanded_location().
libcpp/ChangeLog:
PR preprocessor/49973
PR other/86904
* include/cpplib.h (struct cpp_options): Removed support for -ftabstop,
which is now handled by diagnostic_context.
(class cpp_display_width_computation): New class.
(cpp_byte_column_to_display_column): Add optional tabstop argument.
(cpp_display_width): Likewise.
(cpp_display_column_to_byte_column): Likewise.
* charset.c
(cpp_display_width_computation::cpp_display_width_computation): New
function.
(cpp_display_width_computation::advance_display_cols): Likewise.
(compute_next_display_width): Removed and implemented this
functionality in a new function...
(cpp_display_width_computation::process_next_codepoint): ...here.
(cpp_byte_column_to_display_column): Added tabstop argument.
Reimplemented in terms of class cpp_display_width_computation.
(cpp_display_column_to_byte_column): Likewise.
* init.c (cpp_create_reader): Remove handling of -ftabstop, which is now
handled by diagnostic_context.
gcc/testsuite/ChangeLog:
PR preprocessor/49973
PR other/86904
* c-c++-common/Wmisleading-indentation-3.c: Adjust expected output
for new defaults.
* c-c++-common/Wmisleading-indentation.c: Likewise.
* c-c++-common/diagnostic-format-json-1.c: Likewise.
* c-c++-common/diagnostic-format-json-2.c: Likewise.
* c-c++-common/diagnostic-format-json-3.c: Likewise.
* c-c++-common/diagnostic-format-json-4.c: Likewise.
* c-c++-common/diagnostic-format-json-5.c: Likewise.
* c-c++-common/missing-close-symbol.c: Likewise.
* g++.dg/diagnostic/bad-binary-ops.C: Likewise.
* g++.dg/parse/error4.C: Likewise.
* g++.old-deja/g++.brendan/crash11.C: Likewise.
* g++.old-deja/g++.pt/overload2.C: Likewise.
* g++.old-deja/g++.robertl/eb109.C: Likewise.
* gcc.dg/analyzer/malloc-paths-9.c: Likewise.
* gcc.dg/bad-binary-ops.c: Likewise.
* gcc.dg/format/branch-1.c: Likewise.
* gcc.dg/format/pr79210.c: Likewise.
* gcc.dg/plugin/diagnostic-test-expressions-1.c: Likewise.
* gcc.dg/plugin/diagnostic-test-string-literals-1.c: Likewise.
* gcc.dg/redecl-4.c: Likewise.
* gfortran.dg/diagnostic-format-json-1.F90: Likewise.
* gfortran.dg/diagnostic-format-json-2.F90: Likewise.
* gfortran.dg/diagnostic-format-json-3.F90: Likewise.
* go.dg/arrayclear.go: Add a comment explaining why adding a
comment was necessary to work around a dejagnu bug.
* c-c++-common/diagnostic-units-1.c: New test.
* c-c++-common/diagnostic-units-2.c: New test.
* c-c++-common/diagnostic-units-3.c: New test.
* c-c++-common/diagnostic-units-4.c: New test.
* c-c++-common/diagnostic-units-5.c: New test.
* c-c++-common/diagnostic-units-6.c: New test.
* c-c++-common/diagnostic-units-7.c: New test.
* c-c++-common/diagnostic-units-8.c: New test.
Storing CLASSTYPE_AS_BASE in a local variable makes some code clearer
(and textually no longer). For some reason we store a DECL in a variable
called 'value', which is confusing.
gcc/cp/
* class.c (build_base_field_1): Cache CLASSTYPE_AS_BASE.
(build_self_reference): Rename value -> decl.
(dump_class_hierarchy_1): Cache CLASSTYPE_AS_BASE.
The FAT libraries config fragments need to know which library is native
and which is a multilib to choose the correct multilib from which to
append the additional object file or shared object file. Testing the
top-level archive is fragile because it will fail if rebuilding. This
patch tests the compiler preprocessing macros for the 64 bit AIX specific
__64BIT__ to determine the native mode of the compiler in MULTILIBTOP.
2020-07-14 David Edelsohn <dje.gcc@gmail.com>
libatomic/ChangeLog
* config/t-aix: Set BITS from compiler cpp macro.
libgcc/ChangeLog
* config/rs6000/t-slibgcc-aix: Set BITS from compiler cpp macro.
libgfortran/ChangeLog
* config/t-aix: Set BITS from compiler cpp macro.
libgomp/ChangeLog
* config/t-aix: Set BITS from compiler cpp macro.
libstdc++-v3/ChangeLog
* config/os/aix/t-aix: Set BITS from compiler cpp macro.
