With this change the prepare-commit-msg hook can compare the log of a
commit being amended with the staged changes, and not run mklog.py
unnecessarily. This is controlled by a git config option,
gcc-config.mklog-hook-type.
contrib/ChangeLog:
* prepare-commit-msg: Use the gcc-config.mklog-hook-type Git
config key instead of the GCC_FORCE_MKLOG environment variable.
Optionally disable generating a new ChangeLog template for
amended commits when the existing log is still OK.
When reporting a duplicate access specification of an operator, refer to
the proper symbol.
2020-06-11 Harald Anlauf <anlauf@gmx.de>
gcc/fortran/
PR fortran/95611
* decl.c (access_attr_decl): Use correct symbol in error message.
Co-Authored-By: Steven G. Kargl <kargl@gcc.gnu.org>
Fortran 2018: An argument to an intrinsic procedure other than ASSOCIATED,
NULL, or PRESENT shall be a data object. An EXPR_NULL is not a data
object. Add checks for intrinsics.
2020-06-11 Steven G. Kargl <kargl@gcc.gnu.org>
Harald Anlauf <anlauf@gmx.de>
gcc/fortran/
PR fortran/95544
* check.c (invalid_null_arg): Rename to gfc_invalid_null_arg.
(gfc_check_associated, gfc_check_kind, gfc_check_merge)
(gfc_check_shape, gfc_check_size, gfc_check_spread)
(gfc_check_transfer): Adjust.
(gfc_check_len_lentrim, gfc_check_trim): Check for NULL() argument.
* gfortran.h: Declare gfc_invalid_null_arg ().
* intrinsic.c (check_arglist): Check for NULL() argument.
It was agreed amongst the implementors that the correct
interpretation of the standard is that lambda closure pointers
should be treated in the same manner as class object pointers.
gcc/cp/ChangeLog:
* coroutines.cc (instantiate_coro_traits): Pass a reference
to lambda closure objects to traits instantiation.
(morph_fn_to_coro): Likewise for promise parameter
preview and allocator lookup.
The current code assumes that if the next character in the stream is
equal to the delimiter then we stopped because we saw that delimiter,
and so discards it. But in the testcase for the PR we stop because we
reached the maximum number of characters, and it's coincidence that the
next character equals the delimiter. We should not discard the next
character in that case.
The fix is to check that we haven't discarded __n characters already,
instead of checking whether the next character equals __delim. Because
we've already checked for EOF, if we haven't discarded __n yet then we
know we stopped because we saw the delimiter. On the other hand, if the
next character is the delimiter we don't know if that's why we stopped.
PR libstdc++/94749
* include/bits/istream.tcc (basic_istream::ignore(streamsize, CharT)):
Only discard an extra character if we didn't already reach the
maximum number.
* src/c++98/istream.cc (istream::ignore(streamsiz, char))
(wistream::ignore(streamsize, wchar_t)): Likewise.
* testsuite/27_io/basic_istream/ignore/char/94749.cc: New test.
* testsuite/27_io/basic_istream/ignore/wchar_t/94749.cc: New test.
The test in check_effective_target_exceptions_enabled uses a C++ keyword `throw`
and the test fails with a syntax error on any non-g++ test. I now tell the
testsuite driver that this is a C++ input file so it runs it as such in all the
drivers.
gcc/testsuite/ChangeLog:
* lib/target-supports.exp (check_effective_target_exceptions_enabled):
Mark as C++ test input.
The check for assigning a pointer that cannot be determined to be simply
contiguous at compile time to a contiguous pointer does not need to be
invoked if the lhs of the assignment is known to have conflicting attributes.
2020-06-11 Harald Anlauf <anlauf@gmx.de>
gcc/fortran/
PR fortran/95503
* expr.c (gfc_check_pointer_assign): Skip contiguity check of rhs
of pointer assignment if lhs cannot be simply contiguous.
gcc/testsuite/
PR fortran/95503
* gfortran.dg/pr95503.f90: New test.
When iterating over a class array use the bounds provided by the
transformed descriptor (in sym->backend_decl) instead of the original
bounds of the array (in the descriptor passed in the class _data)
which are passed in se->expr.
The patch partially depends on the patch for PR52351 and PR85868, but
does not seems to break anything by itself.
gcc/fortran/ChangeLog:
2020-06-11 José Rui Faustino de Sousa <jrfsousa@gmail.com>
PR fortran/95331
* trans-array.c (gfc_conv_array_ref): For class array dummy
arguments use the transformed descriptor in sym->backend_decl
instead of the original descriptor.
gcc/testsuite/ChangeLog:
2020-06-11 José Rui Faustino de Sousa <jrfsousa@gmail.com>
PR fortran/95331
* gfortran.dg/PR95331.f90: New test.
The testcase expects __cxa_pure_virtual to be weak to avoid an
implicit dependency. This does not occur on AIX, so expect this testcase
to fail on AIX.
gcc/testsuite/ChangeLog
2020-06-11 David Edelsohn <dje.gcc@gmail.com>
* g++.dg/abi/pure-virtual1.C: XFAIL AIX.
AIX stdio.h implicitly includes inttypes.h, which explicitly conflicts
with the purpose of this testcase. This patch conditionally adds a macro
definition that inhibits the implicit inclusion.
gcc/testsuite/ChangeLog
2020-06-11 David Edelsohn <dje.gcc@gmail.com>
* gcc.dg/spellcheck-inttypes.c: Don't include inttypes.h on AIX.
Add code to allow for the creation a new descriptor for array
sections with the correct one based indexing.
Rework the generated descriptors indexing (hopefully) fixing the
wrong offsets generated.
gcc/fortran/ChangeLog:
2020-06-11 José Rui Faustino de Sousa <jrfsousa@gmail.com>
PR fortran/52351
PR fortran/85868
* trans-array.c (gfc_conv_expr_descriptor): Enable the
creation of a new descriptor with the correct one based
indexing for array sections. Rework array descriptor
indexing offset calculation.
gcc/testsuite/ChangeLog:
2020-06-11 José Rui Faustino de Sousa <jrfsousa@gmail.com>
PR fortran/52351
PR fortran/85868
* gfortran.dg/coarray_lib_comm_1.f90: Adjust match test for
the newly generated descriptor.
* gfortran.dg/PR85868A.f90: New test.
* gfortran.dg/PR85868B.f90: New test.
The argument can be useful to update arbitrary branch, the changes
are added to git index and user is supposed to make a commit.
contrib/ChangeLog:
* gcc-changelog/git_update_version.py: Add --curent argument.
Make sure that when passing array sections of assumed-size arrays to
procedures expecting an assumed-rank array the upper bound of the
last dimension of the array section does not get improperly reset
to -1 to mark it has an assumed size array.
gcc/fortran/ChangeLog:
2020-06-11 José Rui Faustino de Sousa <jrfsousa@gmail.com>
PR fortran/94022
* trans-expr.c (gfc_conv_procedure_call): In the case of
assumed-size arrays ensure that the reference is to a full array.
gcc/testsuite/ChangeLog:
2020-06-11 José Rui Faustino de Sousa <jrfsousa@gmail.com>
PR fortran/94022
* gfortran.dg/PR94022.f90: New test.
2020-06-11 Eric Botcazou <ebotcazou@adacore.com>
gcc/ada/
* sem_res.adb (Resolve_Implicit_Dereference): In an instance,
reset the type of the prefix if it is private before building
the dereference.
2020-06-11 Bob Duff <duff@adacore.com>
gcc/ada/
* libgnat/a-nbnbin__gmp.adb: There's no Optional_Big_Integer
anymore. Invalid_Big_Integer is not used.
Greatest_Common_Divisor returns Big_Positive.
2020-06-11 Eric Botcazou <ebotcazou@adacore.com>
gcc/ada/
* exp_pakd.ads: Add paragraph about scalar storage order.
* exp_pakd.adb (Install_PAT): Do not set the scalar storage
order of the PAT here but...
(Set_PB_Type): ...here instead and...
(Create_Packed_Array_Impl_Type): ...here as well.
* rtsfind.ads (RE_Id): Add RE_Rev_Packed_Bytes{1,2,4}.
(RE_Unit_Table): Likewise.
* libgnat/s-unstyp.ads (Rev_Packed_Bytes1): New derived type.
(Rev_Packed_Bytes2): Likewise.
(Rev_Packed_Bytes4): Likewise.
2020-06-11 Ed Schonberg <schonberg@adacore.com>
gcc/ada/
* sem_warn.adb (Warn_On_Overlapping_Actuals): Simplify code,
remove inner predicate Is_Covered_Formal, preserve warning for
two overlapping composite types when only one is writable, and
for two overlapping and writable elementary types.
2020-06-11 Steve Baird <baird@adacore.com>
gcc/ada/
* contracts.adb (Add_Contract_Item): Support specifying
volatility refinement aspects for types.
(Analyze_Contracts): Add call to Analyze_Type_Contract in the
case of a contract for a type.
(Freeze_Contracts): Add call to Analyze_Type_Contract in the
case of a contract for a type.
(Check_Type_Or_Object_External_Properties): A new procedure
which performs the work that needs to be done for both object
declarations and types.
(Analyze_Object_Contract): Add a call to
Check_Type_Or_Object_External_Properties and remove the code in
this procedure which did much of the work that is now performed
by that call.
(Analyze_Type_Contract): Implement this new routine as nothing
more than a call to Check_Type_Or_Object_External_Properties.
* contracts.ads: Update comment for Add_Contract_To_Item because
types can have contracts. Follow (questionable) precedent and
declare new routine Analyze_Type_Contract as visible (following
example of Analyze_Object_Contract), despite the fact that it is
never called from outside of the package where it is declared.
* einfo.adb (Contract, Set_Contract): Id argument can be a type;
support this case.
(Write_Field34_Name): Field name is "contract" for a type.
* einfo.ads: Update comment describing Contract attribute.
* sem_ch3.adb (Build_Derived_Numeric_Type): Is_Volatile should
return same answer for all subtypes of a given type. Thus, when
building the base type for something like type Volatile_1_To_10
is range 1 .. 10 with Volatile; that basetype should be marked
as being volatile.
(Access_Type_Declaration): Add SPARK-specific legality check
that the designated type of an access type shall be compatible
with respect to volatility with the access type.
* sem_ch12.adb (Check_Shared_Variable_Control_Aspects): Add
SPARK-specific legality check that an actual type parameter in
an instantiation shall be compatible with respect to volatility
with the corresponding formal type.
* sem_ch13.adb (Analyze_Aspect_Specifications): Perform checks
for aspect specs for the 4 volatility refinement aspects that
were already being performed for all language-defined aspects.
* sem_prag.adb (Analyze_External_Property_In_Decl_Part,
Analyze_Pragma): External properties (other than No_Caching) may
be specified for a type, including a generic formal type.
* sem_util.ads: Declare new subprograms - Async_Readers_Enabled,
Async_Writers_Enabled, Effective_Reads, Effective_Writes, and
Check_Volatility_Compatibility.
* sem_util.adb (Async_Readers_Enabled, Async_Writers_Enabled,
Effective_Reads, Effective_Writes): Initial implementation of
new functions for querying aspect values.
(Check_Volatility_Compatibility): New procedure intended for use
in checking all SPARK legality rules of the form "<> shall be
compatible with respect to volatility with <>".
(Has_Enabled_Property): Update comment because Item_Id can be a
type. Change name of nested Variable_Has_Enabled_Property
function to Type_Or_Variable_Has_Enabled_Property; add a
parameter to that function because recursion may be needed,
e.g., in the case of a derived typ). Cope with the case where
the argument to Has_Enabled_Property is a type.
2020-06-11 Piotr Trojanek <trojanek@adacore.com>
gcc/ada/
* sem_aggr.adb (Add_Association): Add assertion about the formal
parameters.
(Propagate_Discriminants): Always add an explicit component
association, so that an "others => <>" association is never
needed.
2020-06-11 Bob Duff <duff@adacore.com>
gcc/ada/
* exp_put_image.adb (Build_Elementary_Put_Image_Call): If the
underlying type is real, call Put_Image_Unknown.
(Build_Unknown_Put_Image_Call): Pass the type name to
Put_Image_Unknown.
* libgnat/s-putima.ads, libgnat/s-putima.adb
(Put_Image_Unknown): Add Type_Name parameter. Remove
overly-detailed documentation of what it does; better to leave
it open.
2020-06-11 Piotr Trojanek <trojanek@adacore.com>
gcc/ada/
* sem_aggr.adb (Build_Constrained_Itype): Move to Sem_Util.
* sem_ch3.adb (Build_Subtype, Inherit_Predicate_Flags): Move...
* sem_util.adb (Build_Subtype): Here. Add parameters for
references to objects previously declared in enclosing scopes.
(Inherit_Predicate_Flags): And here, because it is called by
Build_Subtype.
* sem_util.ads (Build_Overriding_Spec): Reorder alphabetically.
(Build_Subtype): Moved from Sem_Ch3; comments updated.
(Build_Constrained_Itype): Moved from Sem_Aggr; comments
updated.
2020-06-11 Piotr Trojanek <trojanek@adacore.com>
gcc/ada/
* sem_aggr.adb (Build_Constrained_Itype): Previously a declare
block, now a separate procedure; the only change is that now
New_Assoc_List might include components and an others clause,
which we ignore (while we deal with discriminants exactly as we
did before); extend a ??? comment about how this routine is
different from the Build_Subtype
(Resolve_Record_Aggregate): Create a constrained itype not just
for the outermost record aggregate, but for its inner record
aggregates as well.
2020-06-11 Eric Botcazou <ebotcazou@adacore.com>
gcc/ada/
* checks.adb (Build_Discriminant_Checks): Build an explicit
dereference when the type is an access type.
* exp_atag.adb (Build_CW_Membership): Add explicit dereferences.
(Build_Get_Access_Level): Likewise.
(Build_Get_Alignment): Likewise.
(Build_Inherit_Prims): Likewise.
(Build_Get_Transportable): Likewise.
(Build_Set_Size_Function): Likewise.
* exp_ch3.adb (Build_Offset_To_Top_Function): Likewise.
* exp_ch4.adb (Expand_Allocator_Expression): Likewise.
(Expand_N_Indexed_Component ): Remove code dealing with implicit
dereferences.
(Expand_N_Selected_Component): Likewise.
(Expand_N_Slice): Likewise.
* exp_ch9.adb (Add_Formal_Renamings): Add explicit dereference.
(Expand_Accept_Declarations): Likewise.
(Build_Simple_Entry_Call): Remove code dealing with implicit
dereferences.
(Expand_N_Requeue_Statement): Likewise.
* exp_disp.adb (Expand_Dispatching_Call): Build an explicit
dereference when the controlling type is an access type.
* exp_spark.adb (Expand_SPARK_N_Selected_Component): Delete.
(Expand_SPARK_N_Slice_Or_Indexed_Component): Likewise.
(Expand_SPARK): Do not call them.
* sem_ch4.adb (Process_Implicit_Dereference_Prefix): Delete.
(Process_Indexed_Component): Call Implicitly_Designated_Type
to get the designated type for an implicit dereference.
(Analyze_Overloaded_Selected_Component): Do not insert an
explicit dereference here.
(Analyze_Selected_Component): Likewise.
(Analyze_Slice): Call Implicitly_Designated_Type to get the
designated type for an implicit dereference.
* sem_ch8.adb (Has_Components): New predicate extracted from...
(Is_Appropriate_For_Record): ...this. Delete.
(Is_Appropriate_For_Entry_Prefix): Likewise.
(Analyze_Renamed_Entry): Deal with implicit dereferences.
(Find_Selected_Component): Do not insert an explicit dereference
here. Call Implicitly_Designated_Type to get the designated type
for an implicit dereference. Call Has_Components, Is_Task_Type
and Is_Protected_Type directly. Adjust test for error.
* sem_res.adb (Resolve_Implicit_Dereference): New procedure.
(Resolve_Call): Call Resolve_Indexed_Component last.
(Resolve_Entry): Call Resolve_Implicit_Dereference on the prefix.
(Resolve_Indexed_Component): Call Implicitly_Designated_Type to
get the designated type for an implicit dereference and
Resolve_Implicit_Dereference on the prefix at the end.
(Resolve_Selected_Component): Likewise.
(Resolve_Slice): Likewise. Do not apply access checks here.
* sem_util.ads (Implicitly_Designated_Type): Declare.
* sem_util.adb (Copy_And_Maybe_Dereference): Simplify.
(Implicitly_Designated_Type): New function.
(Object_Access_Level): Fix typo.
* sem_warn.adb (Check_Unset_Reference): Test Comes_From_Source
on the original node.
2020-06-11 Piotr Trojanek <trojanek@adacore.com>
gcc/ada/
* exp_disp.adb: Minor reformatting.
* exp_aggr.adb (Is_Static_Dispatch_Table_Aggregate): Recognize
aggregates of the Ada.Tags.Object_Specific_Data type as static.
* sem_aggr.adb (Check_Static_Discriminated_Subtype): Deconstruct
and do not call it from Build_Constrained_Itype.
2020-06-11 Javier Miranda <miranda@adacore.com>
gcc/ada/
* exp_ch9.adb (Expand_N_Conditional_Entry_Call): Replace call to
New_Copy_List by calls to the new routine
New_Copy_Separate_List.
* sem_util.ads (New_Copy_Separate_List, New_Copy_Separate_Tree):
New routines.
* sem_util.adb (New_Copy_Separate_List, New_Copy_Separate_Tree):
New routines.
(New_Copy_Tree): Extend the machinery that detects syntactic
nodes to handle lists of indentifiers with field More_Ids;
otherwise such nodes are erroneously handled as semantic nodes.
Copy aspect specifications attached to nodes.
* sem_ch12.adb (Copy_Generic_Node): Protect reading attribute
Etype.
2020-06-11 Bob Duff <duff@adacore.com>
gcc/ada/
* sem_ch13.adb (Analyze_Aspect_Specifications): Do not set the
Has_Predicates flag when the Predicate_Failure aspect is seen.
It is legal (but pointless) to use this aspect without a
predicate. If we set the flag, we generate a half-baked
Predicate procedure, and if that procedure is nested, it causes
unnesting to crash.
2020-06-11 Bob Duff <duff@adacore.com>
gcc/ada/
* exp_put_image.adb (Build_Record_Put_Image_Procedure): Remove
special processing of protected types, because those are handled
by Build_Protected_Put_Image_Call.
(Enable_Put_Image): Use the switch -gnatd_z to control enabling
of Put_Image. Disable Put_Image for types in Remote_Types
packages.
* debug.adb: Document -gnatd_z switch.
* exp_imgv.adb, libgnat/a-stteou.ads, opt.ads: Minor cleanups.
2020-06-11 Piotr Trojanek <trojanek@adacore.com>
gcc/ada/
* sem_warn.adb (Warn_On_Overlapping_Actuals): Add label to the
outer loop and use it in the exit statement.
2020-06-11 Justin Squirek <squirek@adacore.com>
gcc/ada/
* sem_util.adb (Expand_N_Attribute_Reference): Use original
nodes where required to avoid looking at the expanded tree.
2020-06-11 Arnaud Charlet <charlet@adacore.com>
gcc/ada/
* libgnat/s-aoinar.adb (Atomic_Fetch_And_Add,
Atomic_Fetch_And_Subtract): Add fallback using
compare-and-exchange, in case the integer type does not map to a
machine type.
gcc/ChangeLog:
PR sanitizer/95634
* asan.c (asan_emit_stack_protection): Fix emission for ilp32
by using Pmode instead of ptr_mode.
Co-Authored-By: Jakub Jelinek <jakub@redhat.com>
Power supports vector memory access with length (in bytes) instructions.
Like existing fully masking for SVE, it is another approach to vectorize
the loop using partially-populated vectors.
As Richard Sandiford pointed out, we can rename the rgroup struct
rgroup_masks to rgroup_controls, rename its members mask_type to type,
masks to controls to be more generic.
Besides, this patch also renames some functions like vect_set_loop_mask
to vect_set_loop_control, release_vec_loop_masks to
release_vec_loop_controls, vect_set_loop_masks_directly to
vect_set_loop_controls_directly.
Bootstrapped/regtested on aarch64-linux-gnu.
gcc/ChangeLog:
* tree-vect-loop-manip.c (vect_set_loop_mask): Renamed to ...
(vect_set_loop_control): ... this.
(vect_maybe_permute_loop_masks): Rename rgroup_masks related things.
(vect_set_loop_masks_directly): Renamed to ...
(vect_set_loop_controls_directly): ... this. Also rename some
variables with ctrl instead of mask. Rename vect_set_loop_mask to
vect_set_loop_control.
(vect_set_loop_condition_masked): Rename rgroup_masks related things.
Also rename some variables with ctrl instead of mask.
* tree-vect-loop.c (release_vec_loop_masks): Renamed to ...
(release_vec_loop_controls): ... this. Rename rgroup_masks related
things.
(_loop_vec_info::~_loop_vec_info): Rename release_vec_loop_masks to
release_vec_loop_controls.
(can_produce_all_loop_masks_p): Rename rgroup_masks related things.
(vect_get_max_nscalars_per_iter): Likewise.
(vect_estimate_min_profitable_iters): Likewise.
(vect_record_loop_mask): Likewise.
(vect_get_loop_mask): Likewise.
* tree-vectorizer.h (struct rgroup_masks): Renamed to ...
(struct rgroup_controls): ... this. Also rename mask_type
to type and rename masks to controls.
Power supports vector memory access with length (in bytes) instructions.
Like existing fully masking for SVE, it is another approach to vectorize
the loop using partially-populated vectors.
As Richard Sandiford suggested, this patch is to update the existing
fully_masked_p field to using_partial_vectors_p. Introduce one macro
LOOP_VINFO_USING_PARTIAL_VECTORS_P for partial vectorization checking
usage, update the LOOP_VINFO_FULLY_MASKED_P with
LOOP_VINFO_USING_PARTIAL_VECTORS_P && !masks.is_empty() and still use
it for mask-based partial vectors approach specific checks.
Bootstrapped/regtested on aarch64-linux-gnu.
gcc/ChangeLog:
* tree-vect-loop-manip.c (vect_set_loop_condition): Rename
LOOP_VINFO_FULLY_MASKED_P to LOOP_VINFO_USING_PARTIAL_VECTORS_P.
(vect_gen_vector_loop_niters): Likewise.
(vect_do_peeling): Likewise.
* tree-vect-loop.c (_loop_vec_info::_loop_vec_info): Rename
fully_masked_p to using_partial_vectors_p.
(vect_analyze_loop_costing): Rename LOOP_VINFO_FULLY_MASKED_P to
LOOP_VINFO_USING_PARTIAL_VECTORS_P.
(determine_peel_for_niter): Likewise.
(vect_estimate_min_profitable_iters): Likewise.
(vect_transform_loop): Likewise.
* tree-vectorizer.h (LOOP_VINFO_FULLY_MASKED_P): Updated.
(LOOP_VINFO_USING_PARTIAL_VECTORS_P): New macro.
Power supports vector memory access with length (in bytes) instructions.
Like existing fully masking for SVE, it is another approach to vectorize
the loop using partially-populated vectors.
As Richard Sandiford pointed out, we should extend the existing flag
can_fully_mask_p to be more generic, to indicate whether we have
any chances with partial vectors for this loop. So this patch
is to rename this flag to can_use_partial_vectors_p to be more
meaningful, also rename the macro LOOP_VINFO_CAN_FULLY_MASK_P
to LOOP_VINFO_CAN_USE_PARTIAL_VECTORS_P.
Bootstrapped/regtested on aarch64-linux-gnu.
gcc/ChangeLog:
* tree-vect-loop.c (_loop_vec_info::_loop_vec_info): Rename
can_fully_mask_p to can_use_partial_vectors_p.
(vect_analyze_loop_2): Rename LOOP_VINFO_CAN_FULLY_MASK_P to
LOOP_VINFO_CAN_USE_PARTIAL_VECTORS_P. Rename saved_can_fully_mask_p
to saved_can_use_partial_vectors_p.
(vectorizable_reduction): Rename LOOP_VINFO_CAN_FULLY_MASK_P to
LOOP_VINFO_CAN_USE_PARTIAL_VECTORS_P.
(vectorizable_live_operation): Likewise.
* tree-vect-stmts.c (permute_vec_elements): Likewise.
(check_load_store_masking): Likewise.
(vectorizable_operation): Likewise.
(vectorizable_store): Likewise.
(vectorizable_load): Likewise.
(vectorizable_condition): Likewise.
* tree-vectorizer.h (LOOP_VINFO_CAN_FULLY_MASK_P): Renamed to ...
(LOOP_VINFO_CAN_USE_PARTIAL_VECTORS_P): ... this.
(_loop_vec_info): Rename can_fully_mask_p to can_use_partial_vectors_p.