* gnatbind.adb (Gnatbind): For No_Tasks_Unassigned_To_CPU, check
that CPU has been set on the main subprogram.
(Restriction_Could_Be_Set): Don't print
No_Tasks_Unassigned_To_CPU if it would violate the
above-mentioned rule. Up to now, all restrictions were checked
by the compiler, with the binder just checking for consistency.
But the compiler can't know which subprogram is the main, so
it's impossible to check this one at compile time.
* restrict.ads, restrict.adb: Misc refactoring. Change Warning
to Warn, for consistency, since most already use Warn.
(Set_Restriction): New convenience routine.
* sem_ch13.adb (Attribute_CPU): Check
No_Tasks_Unassigned_To_CPU.
* sem_prag.adb (Pragma_CPU): Check No_Tasks_Unassigned_To_CPU.
Misc refactoring.
* tbuild.ads, tbuild.adb (Sel_Comp): New functions for building
selected components.
Ed Schonberg [Thu, 11 Jun 2020 15:34:26 +0000 (11:34 -0400)]
[Ada] Spurious error in instance nested in formal package
gcc/ada/
* sem_ch12.adb (Load_Parent_Of_Generic): If an ancestor is an
instance whose source appears within a formal package of the
current unit, there is no body of the ancestor needed to
complete the current generic compilation.
Doug Rupp [Mon, 8 Jun 2020 19:17:26 +0000 (12:17 -0700)]
[Ada] v7r2cert: minor refactoring
gcc/ada/
* libgnat/s-thread__ae653.adb (taskVarAdd): Defunct, so remove.
(Current_ATSD): Make it a TLS variable.
(OK): Move to package scope.
(System.Storage_Elements): Import and Use.
Bob Duff [Tue, 9 Jun 2020 23:04:56 +0000 (19:04 -0400)]
[Ada] Adjust heuristics about size of static aggregates
gcc/ada/
* exp_aggr.adb (Max_Aggregate_Size): Use the small size of 64
when copying is needed (for example, for the initialization of a
local variable, and for assignment statements). Use the larger
size when static allocation can be done without copying.
* libgnat/s-rident.ads (No_Dynamic_CPU_Assignment): New
restriction. Add it to all relevant profiles.
* sem_ch13.adb (Attribute_CPU): Check No_Dynamic_CPU_Assignment
restriction.
(Attribute_CPU, Attribute_Dispatching_Domain,
Attribute_Interrupt_Priority): Remove error checks -- these are
checked in the parser.
* sem_prag.adb (Pragma_CPU): Check No_Dynamic_CPU_Assignment
restriction. We've got a little violation of DRY here.
* sem.ads, sem_ch3.ads: Minor comment fix.
Gary Dismukes [Sun, 7 Jun 2020 23:41:15 +0000 (19:41 -0400)]
[Ada] Implicit dereferencing in container indexing
gcc/ada/
* sem_ch4.adb (Try_Container_Indexing): When the prefix type is
an access type, change it to the designated type, change the
prefix to an explicit dereference, and emit a ?d? warning for
the implicit dereference. Include a ??? comment questioning
whether this is the right context in which to perform the
implicit dereferencing.
Arnaud Charlet [Mon, 8 Jun 2020 18:28:52 +0000 (14:28 -0400)]
[Ada] AI12-0373 Additional check on Integer_Literal function
gcc/ada/
* sem_ch13.adb (Validate_Literal_Aspect): Ensure that the
parameter is not aliased. Minor reformatting.
* sem_util.adb (Statically_Names_Object): Update comment.
* sem_ch6.adb (Null_Exclusions_Match): New function to check
that the null exclusions match, including in the case addressed
by this AI.
(Check_Conformance): Remove calls to Comes_From_Source
when calling Null_Exclusions_Match. These are not
needed, as indicated by an ancient "???" comment.
Justin Squirek [Fri, 5 Jun 2020 19:41:33 +0000 (15:41 -0400)]
[Ada] Spurious accessibility error on allocator in generic instance
gcc/ada/
* exp_ch4.adb (Expand_N_Type_Conversion): Remove flawed test for
whether "statically deeper" accessibility rules apply to a given
target type and instead use the new routine
Statically_Deeper_Relation_Applies.
(Statically_Deeper_Relation_Applies): Created to centralize the
calculation of whether a target type within a conversion must
have static accessibility checks.
* sem_ch13.adb (Check_One_Function): Minor comment revision.
Justin Squirek [Fri, 22 May 2020 20:25:00 +0000 (16:25 -0400)]
[Ada] Incorrect static accessibility error in return aggregate
gcc/ada/
* einfo.adb, einfo.ads (Is_Named_Access_Type): Created for
readability.
* sem_ch6.adb (Check_Return_Construct_Accessibility): Add
special cases for formals.
* sem_util.adb (Object_Access_Level): Add handling of access
attributes and named access types in the general case.
Arnaud Charlet [Fri, 5 Jun 2020 18:45:23 +0000 (14:45 -0400)]
[Ada] Spurious redundant use clause warning
gcc/ada/
* sem_ch8.adb (Note_Redundant_Use): Add missing warning tag.
Do not check for redundant use clauses in predefined units to avoid
misleading warnings that may occur as part of a rtsfind load.
Javier Miranda [Wed, 3 Jun 2020 18:07:27 +0000 (14:07 -0400)]
[Ada] Ada2020: AI12-0107 convention of By_Protected_Procedure
gcc/ada/
* exp_attr.adb (Has_By_Protected_Procedure_Prefixed_View): New
subprogram.
(Expand_Access_To_Protected_Op): Adding support for prefixed
class-wide view with By_Protected_Procedure convention.
* sem_attr.adb (Get_Convention): New subprogram.
(Get_Kind): Adapted to use Get_Convention.
* sem_ch4.adb (Try_By_Protected_Procedure_Prefixed_View): New
subprogram.
(Analyze_Selected_Component): Invoke
Try_By_Protected_Procedure_Prefixed_View.
* sem_util.ads (Is_By_Protected_Procedure): New subprogram.
* sem_util.adb (Is_By_Protected_Procedure): New subprogram.
Arnaud Charlet [Fri, 5 Jun 2020 09:40:55 +0000 (05:40 -0400)]
[Ada] Add centralized capacity check in Generic_Bignums
gcc/ada/
* libgnat/s-genbig.adb ("**"): Remove capacity limit check.
Improve code by using an extended return.
(Normalize): Perform capacity limit check here instead which is
the centralized place where (potentially large) big integers are
allocated.
Gary Dismukes [Wed, 3 Jun 2020 23:53:33 +0000 (19:53 -0400)]
[Ada] AI12-0042: Type invariant checking rules
gcc/ada/
* exp_ch4.adb (Expand_N_Type_Conversion): Handle the case of
applying an invariant check for a conversion to a class-wide
type whose root type has a type invariant, when the conversion
appears within the immediate scope of the type and the
expression is of a specific tagged type.
* sem_ch3.adb (Is_Private_Primitive): New function to determine
whether a primitive subprogram is a private operation.
(Check_Abstract_Overriding): Enforce the restriction imposed by
AI12-0042 of requiring overriding of an inherited nonabstract
private operation when the ancestor has a class-wide type
invariant and the ancestor's private operation is visible.
(Derive_Subprogram): Set Requires_Overriding on a subprogram
inherited from a visible private operation of an ancestor to
which a Type_Invariant'Class expression applies.
i386: Introduce peephole2 to use flags from CMPXCHG more [PR96189]
CMPXCHG instruction sets ZF flag if the values in the destination operand
and EAX register are equal; otherwise the ZF flag is cleared and value
from destination operand is loaded to EAX. Following assembly:
Jakub Jelinek [Wed, 15 Jul 2020 14:34:54 +0000 (16:34 +0200)]
openmp: Fix up loop-21.c
I've missed
+FAIL: libgomp.c/loop-21.c execution test
during testing of the recent patch. The problem is that while
for the number of iterations computation it doesn't matter if we compute
min_inner_iterations as (m2 * first + n2 + (adjusted step) + m1 * first + n1) / step
or (m2 * last + n2 + (adjusted step) + m1 * last + n1) / step provided that
in the second case we use as factor (m1 - m2) * ostep / step rather than
(m2 - m1) * ostep / step, for the logical to actual iterator values computation
it does matter and in my hand written C implementations of all the cases (outer
vs. inner loop with increasing vs. decreasing iterator) I'm using the same computation
and it worked well for all the pseudo-random iterators testing it was doing.
It also means min_inner_iterations is misnamed, because it is not really
minimum number of inner iterations, whether the first or last outer iteration
results in the smaller or larger value of this can be (sometimes) only
determined at runtime.
So this patch also renames it to first_inner_iterations.
2020-07-15 Jakub Jelinek <jakub@redhat.com>
PR libgomp/96198
* omp-general.h (struct omp_for_data): Rename min_inner_iterations
member to first_inner_iterations, adjust comment.
* omp-general.c (omp_extract_for_data): Adjust for the above change.
Always use n1first and n2first to compute it, rather than depending
on single_nonrect_cond_code. Similarly, always compute factor
as (m2 - m1) * outer_step / inner_step rather than sometimes m1 - m2
depending on single_nonrect_cond_code.
* omp-expand.c (expand_omp_for_init_vars): Rename min_inner_iterations
to first_inner_iterations and min_inner_iterationsd to
first_inner_iterationsd.
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.
Arnaud Charlet [Wed, 3 Jun 2020 07:42:19 +0000 (03:42 -0400)]
[Ada] Ongoing work for AI12-0212: container aggregates
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.
Eric Botcazou [Thu, 4 Jun 2020 08:15:33 +0000 (10:15 +0200)]
[Ada] Do not generate elaboration code for alignment aspect
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.
Eric Botcazou [Wed, 3 Jun 2020 08:30:09 +0000 (10:30 +0200)]
[Ada] Small addition and tweaks in documentation on freezing
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.
Arnaud Charlet [Sat, 30 May 2020 18:04:33 +0000 (14:04 -0400)]
[Ada] ACATS 4.1P [BDB4001] - 13.11.4(22-23/3) not enforced
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.
Eric Botcazou [Tue, 2 Jun 2020 22:08:17 +0000 (00:08 +0200)]
[Ada] Fix oversight in Delayed_Aspect_Present predicate
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.
Arnaud Charlet [Tue, 2 Jun 2020 12:40:26 +0000 (08:40 -0400)]
[Ada] Documentation cleanups
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.
Piotr Trojanek [Sat, 30 May 2020 09:56:38 +0000 (11:56 +0200)]
[Ada] Fix slices and qualified expressions being effectively volatile
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.
Piotr Trojanek [Fri, 29 May 2020 18:57:53 +0000 (20:57 +0200)]
[Ada] Cleanup condition for an effectively volatile array type
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.
Gary Dismukes [Mon, 1 Jun 2020 19:22:48 +0000 (15:22 -0400)]
[Ada] Minor reformatting of comments and some code, plus a typo correction
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.
Ed Schonberg [Sun, 31 May 2020 20:01:41 +0000 (16:01 -0400)]
[Ada] Ongoing work for unnamed and named container aggregates
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.
Justin Squirek [Fri, 29 May 2020 19:44:50 +0000 (15:44 -0400)]
[Ada] Spurious accessibility error on allocator
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.
Jakub Jelinek [Wed, 15 Jul 2020 09:34:44 +0000 (11:34 +0200)]
fix _mm512_{,mask_}cmp*_p[ds]_mask at -O0 [PR96174]
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.
Jakub Jelinek [Wed, 15 Jul 2020 09:26:22 +0000 (11:26 +0200)]
builtins: Avoid useless char/short -> int promotions before atomics [PR96176]
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.
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).
Marek Polacek [Tue, 23 Jun 2020 01:26:49 +0000 (21:26 -0400)]
c++: Make convert_like complain about bad ck_ref_bind again [PR95789]
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.
David Edelsohn [Tue, 14 Jul 2020 19:31:23 +0000 (15:31 -0400)]
rs6000: Don't call movsi_from_sf in 32 bit mode.
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.
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.
libgomp: Fix hang when profiling OpenACC programs with CUDA 9.0 nvprof
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.
Ian Lance Taylor [Fri, 10 Jul 2020 16:34:28 +0000 (09:34 -0700)]
demangler: don't treat lambda as a substitution candidate
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.
Lewis Hyatt [Tue, 14 Jul 2020 16:05:56 +0000 (12:05 -0400)]
diagnostics: Support conversion of tabs to spaces [PR49973] [PR86904]
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.
David Edelsohn [Mon, 13 Jul 2020 18:43:39 +0000 (14:43 -0400)]
aix: FAT libraries: test native compiler mode directly
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.
Jakub Jelinek [Tue, 14 Jul 2020 14:01:11 +0000 (16:01 +0200)]
expr: Unbreak build of mesa [PR96194]
> > The store to the whole of each volatile object was picked apart
> > like there had been an individual assignment to each of the
> > fields. Reads were added as part of that; see PR for details.
> > The reads from volatile memory were a clear bug; individual
> > stores questionable. A separate patch clarifies the docs.
This breaks building of mesa on both the trunk and 10 branch.
The problem is that the middle-end may never create temporaries of non-POD
(TREE_ADDRESSABLE) types, those can be only created when the language says
so and thus only the FE is allowed to create those.
This patch just reverts the behavior to what we used to do before for the
stores to volatile non-PODs. Perhaps we want to do something else, but
definitely we can't create temporaries of the non-POD type. It is up to
discussions on what should happen in those cases.
2020-07-14 Jakub Jelinek <jakub@redhat.com>
PR middle-end/96194
* expr.c (expand_constructor): Don't create temporary for store to
volatile MEM if exp has an addressable type.
Marek Polacek [Wed, 24 Jun 2020 21:39:21 +0000 (17:39 -0400)]
c++: Improve checking of decls with trailing return type [PR95820]
This is an ICE-on-invalid but I've been seeing it when reducing
various testcases, so it's more important for me than usually.
splice_late_return_type now checks that if we've seen a late return
type, the function return type was auto. That's a fair assumption
but grokdeclarator/cdk_function wasn't giving errors for function
pointers and similar. So we want to perform various checks not only
when funcdecl_p || inner_declarator == NULL. But only give the
!late_return_type errors when funcdecl_p, to accept e.g.
/* Handle a late-specified return type. */
tree late_return_type = declarator->u.function.late_return_type;
- if (funcdecl_p
- /* This is the case e.g. for
- using T = auto () -> int. */
- || inner_declarator == NULL)
- {
if (tree auto_node = type_uses_auto (type))
{
- if (!late_return_type)
+ if (!late_return_type && funcdecl_p)
{
if (current_class_type
&& LAMBDA_TYPE_P (current_class_type))
@@ -12201,7 +12196,6 @@ grokdeclarator (const cp_declarator *declarator,
"type specifier", name);
return error_mark_node;
}
- }
type = splice_late_return_type (type, late_return_type);
if (type == error_mark_node)
return error_mark_node;
gcc/cp/ChangeLog:
PR c++/95820
* decl.c (grokdeclarator) <case cdk_function>: Check also
pointers/references/... to functions.
gcc/testsuite/ChangeLog:
PR c++/95820
* g++.dg/cpp1y/auto-fn58.C: New test.
I found some bad formatting and misleading or incomplete comments
during my spelunking around the c++FE. May as well clean up trunk and
record what I noted.
gcc/cp/
* cp-tree.h: Correct some tree lang flag comments,
reformat some structure definitions. Note some structure
sizes. Clarify some comments.
(yyungetc): Delete. Not been a thing for some time.
* class.c (copy_fndecl_with_name): Comment.
(check_bases_and_members): Unnecessary {}.
(layout_class_type): Comment.
* cp-tree.def (UNBOUND_CLASS_TEMPLATE): Adjust comment.
* decl.c: Fix some formatting & whitespace issues.
(function_requirements_equivalent_p): Note why
substitutions are needed.
* decl2.c (no_linkage_error): Note that heroics about
'typedef struct { ... };' are no longer needed.
* method.c: Whitespace.
* name-lookup.c: Whitespace.
(add_decl_to_level): Reformat a line.
(print_binding_stack): Mark as DEBUG_FUNCTION.
(has_using_namespace_std_directive_p): Delete comment.
* pt.c: Whitespace
* ptree.c: Whitespace.
* rtti.c: Whitespace & comment.
* tree.c: Comment.
* typeck.c (structural_comptypes): Add comment.
As we've moved to 64-bit systems, the padding information has become
conditionally inaccurate. I also hit cases where invalid tree codes
did not get flagged as invalid.
gcc/
* tree-core.h (tree_decl_with_vis, tree_function_decl):
Note additional padding on 64-bits
* tree.c (cache_integer_cst): Note why no caching of enum literals.
(get_tree_code_name): Robustify error case.
gty calls gt_clear*e*_cache not gt_clear_cache. I know not why it is
named so, but at least document it correctly. invoke.texi had a duplicate opindex.
Mark Eggleston [Thu, 11 Jun 2020 10:05:40 +0000 (11:05 +0100)]
Fortran : ICE in gfc_check_pointer_assign PR95612
Output an error if the right hand value is a zero sized array or
does not have a symbol tree otherwise continue checking.
2020-07-14 Steven G. Kargl <kargl@gcc.gnu.org>
gcc/fortran/
PR fortran/95612
* expr.c (gfc_check_pointer_assigb): Output an error if
rvalue is a zero sized array or output an error if rvalue
doesn't have a symbol tree.
2020-07-14 Mark Eggleston <markeggleston@gcc.gnu.org>
gcc/testsuite/
PR fortran/95612
* gfortran.dg/pr95612.f90: New test.
Jakub Jelinek [Tue, 14 Jul 2020 08:31:59 +0000 (10:31 +0200)]
openmp: Adjust outer bounds of non-rect loops
In loops like:
#pragma omp parallel for collapse(2)
for (i = -4; i < 8; i++)
for (j = 3 * i; j > 2 * i; j--)
for some outer loop iterations there are no inner loop iterations at all,
the condition is false. In order to use Summæ Potestate to count number
of iterations or to transform the logical iteration number to actual
iterator values using quadratic non-equation root discovery the outer
iterator range needs to be adjusted, such that the inner loop has at least
one iteration for each of the outer loop iterator value in the reduced
range. Sometimes this adjustment is done at the start of the range,
at other times at the end.
This patch implements it during the compile time number of loop computation
(if all expressions are compile time constants).
2020-07-14 Jakub Jelinek <jakub@redhat.com>
* omp-general.h (struct omp_for_data): Add adjn1 member.
* omp-general.c (omp_extract_for_data): For non-rect loop, punt on
count computing if n1, n2 or step are not INTEGER_CST earlier.
Narrow the outer iterator range if needed so that non-rect loop
has at least one iteration for each outer range iteration. Compute
adjn1.
* omp-expand.c (expand_omp_for_init_vars): Use adjn1 if non-NULL
instead of the outer loop's n1.
Mark Eggleston [Mon, 6 Jul 2020 06:14:59 +0000 (07:14 +0100)]
Fortran : Implicitly type parameter causes an invalid error PR96038
If a paramter to declared and initialised before its type is
declared a bogus error is output at the type declaration
idicating that initialisation is missing.
2020-07-14 Steven G. Kargl <kargl@gcc.gnu.org>
gcc/fortran/
PR fortran/96038
* decl.c (add_init_expr_sym): For a symbol that is a
parameter accept an initialisation if it does not have a
value otherwise output a error and reject.
2020-07-14 Mark Eggleston <markeggleston@gcc.gnu.org>
gcc/testsuite/
PR fortran/96038
* gfortran.dg/pr96038.f90: New test.
Because the check for power10_hw is not called
check_effective_target_power10_hw, it needs to be looked
for by is-effective-target-keyword. Also reorder things
in is-effective-target to put power10_hw with the other
ppc stuff.
gcc/testsuite/
* lib/target-supports.exp (is-effective-target):
Reorder to put powerpc stuff together.
(is-effective-target-keyword): Add power10_hw.
Sigh, last week's success at not breaking things failed with an
incorrect 'fix' this morning. Let's reduce my confusion by making
lib/scanlang.exp the same on trunk as modules.
Add a test for dejagnu to determine if execution of MMA instructions is
supported in the test environment. Add an execution test to make sure
that __builtin_cpu_supports("mma") is true if we can execute MMA
instructions.