The recent PR41437 fix exposed a latent use of an inaccessible member in
the below testcase.
gcc/testsuite/ChangeLog:
PR testsuite/95716
* g++.dg/ext/pr85503.C: Give ai::cv public access.
This fixes yet another issue with the custom SSA updating in the
vectorizer when we copy from the non-if-converted loop. We must
not mess with current defs before we updated the BB copies.
2020-06-17 Richard Biener <rguenther@suse.de>
PR tree-optimization/95717
* tree-vect-loop-manip.c (slpeel_tree_duplicate_loop_to_edge_cfg):
Move BB SSA updating before exit/latch PHI current def copying.
* g++.dg/torture/pr95717.C: New testcase.
gcc/ChangeLog:
* Makefile.in: Add new file.
* expr.c (expand_expr_real_2): Add gcc_unreachable as we should
not meet this condition.
(do_store_flag): Likewise.
* gimplify.c (gimplify_expr): Gimplify first argument of
VEC_COND_EXPR to be a SSA name.
* internal-fn.c (vec_cond_mask_direct): New.
(vec_cond_direct): Likewise.
(vec_condu_direct): Likewise.
(vec_condeq_direct): Likewise.
(expand_vect_cond_optab_fn): New.
(expand_vec_cond_optab_fn): Likewise.
(expand_vec_condu_optab_fn): Likewise.
(expand_vec_condeq_optab_fn): Likewise.
(expand_vect_cond_mask_optab_fn): Likewise.
(expand_vec_cond_mask_optab_fn): Likewise.
(direct_vec_cond_mask_optab_supported_p): Likewise.
(direct_vec_cond_optab_supported_p): Likewise.
(direct_vec_condu_optab_supported_p): Likewise.
(direct_vec_condeq_optab_supported_p): Likewise.
* internal-fn.def (VCOND): New OPTAB.
(VCONDU): Likewise.
(VCONDEQ): Likewise.
(VCOND_MASK): Likewise.
* optabs.c (get_rtx_code): Make it global.
(expand_vec_cond_mask_expr): Removed.
(expand_vec_cond_expr): Removed.
* optabs.h (expand_vec_cond_expr): Likewise.
(vector_compare_rtx): Make it global.
* passes.def: Add new pass_gimple_isel pass.
* tree-cfg.c (verify_gimple_assign_ternary): Add check
for VEC_COND_EXPR about first argument.
* tree-pass.h (make_pass_gimple_isel): New.
* tree-ssa-forwprop.c (pass_forwprop::execute): Prevent
propagation of the first argument of a VEC_COND_EXPR.
* tree-ssa-reassoc.c (ovce_extract_ops): Support SSA_NAME as
first argument of a VEC_COND_EXPR.
(optimize_vec_cond_expr): Likewise.
* tree-vect-generic.c (expand_vector_divmod): Make SSA_NAME
for a first argument of created VEC_COND_EXPR.
(expand_vector_condition): Fix coding style.
* tree-vect-stmts.c (vectorizable_condition): Gimplify
first argument.
* gimple-isel.cc: New file.
gcc/testsuite/ChangeLog:
* g++.dg/vect/vec-cond-expr-eh.C: New test.
This upgrades the compiler to emit HSA Code Object v3 binaries. This means
changing the assembler directives, and linker command line options.
The gcn-run and libgomp loaders need corresponding alterations. The
relocations no longer need to be fixed up manually, and the kernel symbol
names have changed slightly.
This move makes the binaries compatible with the new rocgdb from ROCm 3.5.
2020-06-17 Andrew Stubbs <ams@codesourcery.com>
gcc/
* config/gcn/gcn-hsa.h (TEXT_SECTION_ASM_OP): Use ".text".
(BSS_SECTION_ASM_OP): Use ".bss".
(ASM_SPEC): Remove "-mattr=-code-object-v3".
(LINK_SPEC): Add "--export-dynamic".
* config/gcn/gcn-opts.h (processor_type): Replace PROCESSOR_VEGA with
PROCESSOR_VEGA10 and PROCESSOR_VEGA20.
* config/gcn/gcn-run.c (HSA_RUNTIME_LIB): Use ".so.1" variant.
(load_image): Remove obsolete relocation handling.
Add ".kd" suffix to the symbol names.
* config/gcn/gcn.c (MAX_NORMAL_SGPR_COUNT): Set to 62.
(gcn_option_override): Update gcn_isa test.
(gcn_kernel_arg_types): Update all the assembler directives.
Remove the obsolete options.
(gcn_conditional_register_usage): Update MAX_NORMAL_SGPR_COUNT usage.
(gcn_omp_device_kind_arch_isa): Handle PROCESSOR_VEGA10 and
PROCESSOR_VEGA20.
(output_file_start): Rework assembler file header.
(gcn_hsa_declare_function_name): Rework kernel metadata.
* config/gcn/gcn.h (GCN_KERNEL_ARG_TYPES): Set to 16.
* config/gcn/gcn.opt (PROCESSOR_VEGA): Remove enum.
(PROCESSOR_VEGA10): New enum value.
(PROCESSOR_VEGA20): New enum value.
libgomp/
* plugin/plugin-gcn.c (init_environment_variables): Use ".so.1"
variant for HSA_RUNTIME_LIB name.
(find_executable_symbol_1): Delete.
(find_executable_symbol): Delete.
(init_kernel_properties): Add ".kd" suffix to symbol names.
(find_load_offset): Delete.
(create_and_finalize_hsa_program): Remove relocation handling.
2020-06-17 Eric Botcazou <ebotcazou@adacore.com>
gcc/ada/
* checks.adb (Apply_Universal_Integer_Attribute_Checks): Do not do
anything when the type of the node is already Universal_Integer.
2020-06-17 Ed Schonberg <schonberg@adacore.com>
gcc/ada/
* sem_ch13.adb: (Check_Inherited_Indexing): Check that a type
derived from an indexable container type cannot specify an
indexing aspect if the same aspect is not specified for the
parent type (RM 4.1.6 (6/5), AI12-160). Add a check that a
specified indexing aspect for a derived type is confirming.
2020-06-17 Gary Dismukes <dismukes@adacore.com>
gcc/ada/
* exp_ch9.adb (Build_Protected_Subp_Specification): Add ???
comment about the flag Has_Nested_Subprogram not being set here.
(Expand_N_Protected_Body): If the original body for a protected
subprogram has the flag Has_Nested_Subprogram set, then set that
flag on the new unprotected subprogram body that's created for
it, and reset the Scope fields of its top level declarations,
which have been effectively taken from the original protected
subprogram body. Add ??? comment about unclear testing of
Corresponding_Spec.
2020-06-17 Javier Miranda <miranda@adacore.com>
gcc/ada/
* aspects.ads (type Aspect_Id): Add Aspect_Yield as a Boolean
aspect, and update the Is_Representation_Aspect, Aspect_Names,
and Aspect_Delay arrays.
* einfo.ads, einfo.adb (Has_Yield_Aspect, Yield_Aspect): New
subprograms.
* exp_ch6.adb (Add_Return, Expand_Non_Function_Return,
Expand_Simple_Function_Return): Add calls to Yield.
* exp_ch9.adb (Build_Accept_Body, Expand_N_Accept_Statement):
Add calls to Yield.
* rtsfind.ads (RE_Yield): Adding support to generate calls to
the runtime service Ada.Dispatching.Yield
* sem_ch13.adb (Analyze_Aspect_Yield): New subprogram.
* sem_ch3.adb (Derive_Subprogram): Inherit attribute
Has_Yield_Aspect.
* sem_ch8.adb (Analyze_Subprogram_Renaming): Check consistency
of Has_Yield in the actual subprogram of a generic
instantiation.
* sem_disp.adb (Check_Dispatching_Operation): Check that if the
Yield aspect is specified for a dispatching subprogram that
inherits the aspect, the specified value shall be confirming.
* sem_prag.adb (Analyze_Pragma [Pragma_Implemented]): Check that
the implementation kind By_Protected_Procedure cannot be applied
to a procedure that has aspect Yield.
2020-06-17 Eric Botcazou <ebotcazou@adacore.com>
gcc/ada/
* exp_ch4.adb (Expand_N_Op_Expon): Replace all occurrences of
the original right operand with the relocated version.
2020-06-17 Javier Miranda <miranda@adacore.com>
gcc/ada/
* exp_ch6.adb (Has_BIP_Extra_Formal): New subprogram.
(Needs_BIP_Task_Actuals): Add support for the subprogram type
internally generated for dispatching calls.
* exp_disp.adb (Expand_Dispatching_Call): Adding code to
explicitly duplicate the extra formals of the target subprogram.
* freeze.adb (Check_Extra_Formals): New subprogram.
(Freeze_Subprogram): Fix decoration of Extra_Formals.
* sem_ch3.adb (Derive_Subprogram): Fix decoration of
Extra_Formals.
2020-06-17 Bob Duff <duff@adacore.com>
gcc/ada/
* par.adb (P_Basic_Declarative_Items): Update comment about
Declare_Expression.
* par-ch3.adb (P_Declarative_Items): Pass in Declare_Expression
flag, and if True, skip the call to Style.Check_Indentation.
* par-ch4.adb (P_Declare_Expression): Fix incorrect comment.
2020-06-17 Eric Botcazou <ebotcazou@adacore.com>
gcc/ada/
* checks.ads (Apply_Length_Check_On_Assignment): Declare.
* checks.adb (Apply_Length_Check_On_Assignment): New procedure
to apply a length check to an expression in an assignment.
* exp_ch5.adb (Expand_Assign_Array): Call it instead of calling
Apply_Length_Check to generate a length check.
* sem_ch5.adb (Analyze_Assignment): Likewise.
2020-06-17 Eric Botcazou <ebotcazou@adacore.com>
gcc/ada/
* cstand.adb (Stloc): Change to a renaming.
(Staloc): Likewise.
(Build_Unsigned_Integer_Type): Remove Nam parameter, use local
constants and do not call Make_Name.
(Make_Dummy_Index): Use local constants.
(Create_Standard): Pass the name of entities as parameter in
calls to New_Standard_Entity and remove calls to Make_Name.
Adjust calls to Build_Unsigned_Integer_Type.
(Identifier_For): Use local constant.
(Make_Component): Pass the name of the component as parameter
in call to New_Standard_Entity and remove call to Make_Name.
(Make_Formal): Likewise. Rename Formal_Name parameter into
Nam and use local constant.
(Make_Name): Delete.
(New_Operator): Use local constant.
(New_Standard_Entity): Rename S parameter into Nam and build
the name here. Remove call to Make_Name.
(Register_Float_Type): Pass the name of the type as parameter
in call to New_Standard_Entity and remove call to Make_Name.
2020-06-17 Eric Botcazou <ebotcazou@adacore.com>
gcc/ada/
* exp_attr.adb (Get_Integer_Type): Use standard types without
a specific size.
* sem_res.adb (Resolve_Unchecked_Type_Conversion): Remove a
redundant intermediate conversion to Universal_Integer.
2020-06-17 Piotr Trojanek <trojanek@adacore.com>
gcc/ada/
* sem_util.ads, sem_util.adb (Get_Iterable_Type_Primitive): Fix
comment and enforce it with an assertion in the body.
2020-06-17 Ed Schonberg <schonberg@adacore.com>
gcc/ada/
* sem_ch3.adb (Analyze_Full_Type_Declaration): For an
access_to_subprogram declaration that has aspect specifications,
call Build_Access_ Subprogram_Wrapper at once, so that pre- and
postcondition aspects are analyzed in the context of a
subprogram declaration.
(Build_Access_Subprogram_Wrapper): Examine aspect specifications
of an Access_To_Subprogram declaration. If pre- or
postconditions are declared for it, create declaration for
subprogram wrapper and add the corresponding aspect
specifications to it. Replace occurrences of the type name by
that of the generated subprogram, so that attributes 'Old and
'Result can appear in a postcondition.
* exp_ch3.adb (Build_Access_Subprogram_Wrapper_Body): Moved
here from sem_prag.adb.
* exp_ch3.ads (Build_Access_Subprogram_Wrapper_Body): Visible
subprogram.
* sem_prag.adb (Build_Access_Subprogram_Wrapper / _Body): Moved
to sem_ch3.adb and exp_ch3.adb.
2020-06-17 Piotr Trojanek <trojanek@adacore.com>
gcc/ada/
* atree.adb (Preserve_Comes_From_Source): Rewrite using
Set_Comes_From_Source and Comes_From_Source, which enforce that
the parameters are valid.
* exp_ch4.adb, exp_ch5.adb, sem_ch12.adb, sem_ch6.adb,
sem_res.adb: Rewrite using Preserve_Comes_From_Source.
2020-06-17 Gary Dismukes <dismukes@adacore.com>
gcc/ada/
* aspects.ads (type Aspect_Id): Add Aspect_Static as a Boolean
aspect, and update the Is_Representation_Aspect, Aspect_Names,
and Aspect_Delay arrays.
* exp_ch6.adb (Expand_Simple_Function_Return): In the case of a
return for a static expression function, capture a copy of the
expression of the return statement before it's expanded and
reset its Analyzed flags. Then, just before leaving this
procedure, if the expression was rewritten, set the
Original_Node of the rewritten expression to the new copy and
also set the Expression of the associated static expression
function to designate that copy. This ensures that later copies
of the expression made via New_Copy_Tree will fully copy all
nodes of the expression tree.
* inline.ads (Inline_Static_Expression_Function_Call): New
procedure to evaluate and produce the result of a static call to
a static expression function.
* inline.adb: Add with and use for Sem_Res.
(Establish_Actual_Mapping_For_Inlined_Call): New procedure
extracted from code in Expand_Inlined_Call that traverses the
actuals and formals of an inlined call and in some cases creates
temporaries for holding the actuals, plus establishes an
association between formals and actuals (via the Renamed_Object
fields of the formals).
(Formal_Is_Used_Once): Function removed from Expand_Inlined_Call
and now nested in the above procedure.
(Expand_Inlined_Call): Code for doing the formal/actual
traversal is moved to Create_Actual_Temporaries and replaced
with a call to that new procedure.
(Inline_Static_Expression_Function_Call): New procedure to
evaluate a static call to a static expression function,
substituting actuals for their corresponding formals and
producing a fully folded and static result expression. The
function has subsidiary functions Replace_Formal and Reset_Sloc
that take care of doing the mapping of formals to actuals and
resetting the Slocs of subnodes of the mapped expression to that
of the call so errors will be flagged on the call rather than
function.
* sem_ch6.adb (Analyze_Expression_Function): In the case of a
static expression function, perform an additional preanalysis of
the function's expression to ensure that it's a potentially
static expression (according to the requirements of
6.8(3.2/5-3.4/5)), and issue an error if it's not. The global
flag Checking_Potentially_Static_Expression is set and unset
around this checking.
* sem_ch13.adb (Analyze_Aspect_Static): New procedure to enforce
selected requirements of the new aspect Static on expression
functions, including checking that the language version is
Ada_2020 and that the entity to which it applies is an
expression function whose formal parameters are of a static
subtype and have mode 'in', its result subtype is a static
subtype, and it has no pre- or postcondition aspects. A ???
comment is added to indicate the need for adding checking that
type invariants don't apply to the result type if the function
is a boundary entity.
(Analyze_One_Aspect): Call Analyze_Aspect_Static for aspect
Static.
* sem_elab.adb (Build_Call_Marker): Return without creating a
call marker when the subprogram is a static expression function,
since no ABE checking is needed for such functions.
* sem_eval.ads (Checking_Potentially_Static_Expression): New
function to return whether the checking for potentially static
expressions is enabled.
(Set_Checking_Potentially_Static_Expression): New procedure to
enable or disable checking of potentially static expressions.
* sem_eval.adb (Checking_For_Potentially_Static_Expression): New
global flag for determining whether preanalysis of potentially
static expression is being done, which affects the behavior of
certain static evaluation routines.
(Checking_Potentially_Static_Expression): New function to return
whether the checking for potentially static expressions is
enabled.
(Eval_Call): When evaluating a call within a static expression
function with checking of potentially static expression
functions enabled, substitutes a static value in place of the
call to allow folding of the expression.
(Eval_Entity_Name): When evaluating a formal parameter of a
static expression function with checking of potentially static
expression functions enabled, substitutes a static value in
place of the reference to the formal to allow folding of the
expression.
(Set_Checking_Potentially_Static_Expression): New procedure to
enable or disable checking of potentially static expressions.
* sem_res.adb (Resolve_Call): Test for a recursive call
occurring within a static expression function and issue an error
for such a call. Prevent the establishment of a transient scope
in the case this is a call to a (string-returning) static
expression function. When calling a static expression function,
if no error has been posted on the function, call
Inline_Static_Expression_Function_Call to convert the call into
its equivalent static value.
* sem_util.ads (Is_Static_Expression_Function): New function
returning whether the subprogram entity passed to it is a static
expression function.
(Is_Static_Expression_Function_Call): New function to determine
whether the call node passed to it is a static call to a static
expression function.
* sem_util.adb (Compile_Time_Constraint_Error): Suppress
compile-time Constraint_Error reporting when checking for a
potentially static expression.
(Is_Static_Expression_Function): New function returning whether
the subprogram entity passed to it is a static expression
function by testing for the presence of aspect Static.
(Has_All_Static_Actuals): New function in
Is_Static_Expression_Function_Call that traverses the actual
parameters of a function call and returns True only when all of
the actuals are given by static expressions. In the case of a
string-returning function, we call Resolve on each actual to
ensure that their Is_Static_Expression flag properly reflects
whether they're static, to allow suppressing creation of a
transient scope within Resolve_Call. A prominent ??? comment is
added to explain this rather unconventional call to Resolve.
(Is_Static_Expression_Function_Call): New function that
determines whether a node passed to it is a call to a static
expression function all of whose actual parameters are given by
static expressions.
2020-06-17 Eric Botcazou <ebotcazou@adacore.com>
gcc/ada/
* exp_ch4.adb (Optimize_Length_Comparison): New local variable to
record whether this may be a dynamic superflat case.
(Is_Optimizable): Accept 0 as lower bound and set it in this case,
but return false if the operand is not a length too.
(Rewrite_For_Equal_Lengths): New procedure.
Optimize the comparison of two lengths in the superflat case when
the arrays have the same bounds.
2020-06-17 Eric Botcazou <ebotcazou@adacore.com>
gcc/ada/
* doc/gnat_rm/implementation_defined_attributes.rst (Bit): Sharpen
the comparison with System.Storage_Unit.
(Descriptor_Size): Clear confusion about alignment and padding.
* gnat_rm.texi: Regenerate.
2020-06-17 Eric Botcazou <ebotcazou@adacore.com>
gcc/ada/
* exp_attr.adb (Expand_N_Attribute_Reference) <Attribute_First>:
Do not replace the bound for an array type if it is public.
2020-06-17 Eric Botcazou <ebotcazou@adacore.com>
gcc/ada/
* exp_ch4.adb (Optimize_Length_Comparison): Make sure the base
types are the same when comparing Y'Last and X'Last directly.
2020-06-17 Eric Botcazou <ebotcazou@adacore.com>
gcc/ada/
* exp_attr.adb (Expand_N_Attribute_Reference) <Attribute_First>:
Replace it with a direct reference to an entity which is not a
discriminant for constrained array types. Add same condition
for scalar types.
<Attribute_Last>: Merge with above implementation.
* exp_ch4.adb (Optimize_Length_Comparison): Be prepared for a
second entity whose length is compared. Rename Prepare_64 to
Convert_To_Long_Long_Integer. If the second entity is present,
compute the difference of the 'First attributes and compare the
sum of 'Last of the second entity with this difference against
'Last of the first entity. Add a special case when the 'First
attributes are equal. Suppress overflow checks in all cases.
2020-06-17 Eric Botcazou <ebotcazou@adacore.com>
gcc/ada/
* exp_fixd.adb (Build_Conversion): Also preserve the
Conversion_OK flag of an inner conversion.
2020-06-17 Piotr Trojanek <trojanek@adacore.com>
gcc/ada/
* sem_ch5.adb (Analyze_Iterator_Specification): Enable expansion
that creates a renaming that removes side effects from the
iterated object in the GNATprove mode; then analyze reference to
this renaming (it is required for GNATprove and harmless for
GNAT).
libgcc/ChangeLog:
* libgcov-util.c (read_gcda_finalize): Remove const operator.
(merge_wrapper): Add both counts and use them properly.
(topn_to_memory_representation): New function.
(gcov_merge): Covert on disk representation to in memory
representation.
* libgcov.h: Remove const operator.
This was reported on the gcc-help mailing list. The regression started
with r10-589 and was fixed by r11-963.
gcc/testsuite/ChangeLog:
* g++.dg/torture/pr95493-1.C: New test.
gcc/d/ChangeLog:
* d-diagnostic.cc (expand_d_format): Replace OutBuffer with obstack.
(d_diagnostic_report_diagnostic): Don't free xformat.
* d-lang.cc (struct d_option_data): Change deps_target type from
OutBuffer to vec <const char *>.
(deps_add_target): Update to push each target to deps_target.
(deps_write_string): New function.
(deps_write): Change buffer type to obstack* and remove colmax.
(d_init_options): Update initialization of deps_target.
(d_parse_file): Replace OutBuffer with obstack.
gcc/d/ChangeLog:
* d-codegen.cc (build_array_bounds_call): New function.
(build_bounds_condition): Use build_array_bounds_call.
* d-lang.cc (d_init_options): Explicitly set default check action to
CHECKACTION_D.
(d_post_options): Set check action to CHECKACTION_C if the flag
-fno-druntime was seen.
* d-tree.h (build_array_bounds_call): Declare.
* expr.cc (ExprVisitor::visit (AssertExp *)): Use
build_array_bounds_call.
This improves the previous fix for PR 95282, and extends it to also
apply to the exchange function (which has a similar problem and would
become ill-formed with my proposed fix for PR 95378).
PR libstdc++/95282
* include/bits/atomic_base.h (__atomic_impl::load): Use the _Val
alias instead of deducing _Tp as an unqualified type.
(__atomic_impl::exchange): Use the _Val alias to remove volatile
from the reinterpret_cast result type.
C++20 adds some new preconditions to std::atomic, which weren't
previously checked by our implementation.
* include/std/atomic (atomic): Add static assertions.
* testsuite/29_atomics/atomic/requirements/types_neg.cc: New test.
Patrick Palka
Richard Biener
Martin Liska
Andrew Stubbs
Eric Botcazou
Arnaud Charlet
Ed Schonberg
Gary Dismukes
Javier Miranda
Bob Duff
Piotr Trojanek
liuhongt
GCC Administrator
Jonathan Wakely
Iain Buclaw