This patch enures that the subtype of an aggregate has the Has_Predicate
flag properly set if the array component has a predicate, including the
case the predicate function for the component has not been constructed
yet.
2018-12-11 Ed Schonberg <schonberg@adacore.com>
gcc/ada/
* sem_aggr.adb (Array_Aggr_Subtype. Resolve_Aggr_Expr): Indicate
that aggregate subtype has a predicate if the component type has
a predicate; do not rely on exisatence of predicate function for
component, in case component is a type no yet frozen, for which
predicate function has not been created yet.
From-SVN: r267007
This fixes a crash in gigi on a pathological packed array type, whose
component type is a record type without representation clause or packing
but with a clause that bumps its size to a non-multiple value of the
storage unit. In this case, the front-end fails to detect that calls
to the packing manpulation routines of the run time are necessary.
The fix doesn't change anything for non-pathological cases, i.e. when
the component type has a representation clause or is packed.
2018-12-11 Eric Botcazou <ebotcazou@adacore.com>
gcc/ada/
* exp_aggr.adb (Packed_Array_Aggregate_Handled): Bail out for
any non-scalar type as component type of the array.
gcc/testsuite/
* gnat.dg/packed_array.adb, gnat.dg/packed_array.ads,
gnat.dg/packed_array_pkg.ads: New testcase.
From-SVN: r267006
2018-12-11 Eric Botcazou <ebotcazou@adacore.com>
gcc/ada/
* einfo.ads (Is_Bit_Packed_Array): Fix values of component size.
(Is_Packed): Likewise.
* gcc-interface/utils.c (convert): Do not extract the value of a
justified modular type if the destination type is a regular
array.
* gcc-interface/decl.c (gnat_to_gnu_component_type): Pass
TYPE_DECL to validate_size wherever the array has packed
components.
From-SVN: r267005
This patch fixes a bug where if a library unit is compiled with -gnatQ,
and that library unit is an ignored Ghost unit, then gnatbind silently
fails.
2018-12-11 Bob Duff <duff@adacore.com>
gcc/ada/
* gnat1drv.adb (gnat1drv): Pass the correct Object value when
calling Write_ALI in the case of -gnatQ.
* gnatbind.adb (Gnatbind): Avoid silent failure; give an error
message.
From-SVN: r267004
2018-12-11 Ed Schonberg <schonberg@adacore.com>
gcc/ada/
* exp_unst.adb (Needs_Fat_Pointer): A fat pointer is required if
the entity has a private type whose full view is an
unconstrained array type.
(Rewrite_One_Ref): If the reference is to a static constant, use
its value rather than create a reference through the activation
record. This is more efficient, and furthermore indispensable if
the context requires a static constant, such as in a branch of a
case statement.
From-SVN: r267003
This patch adds a missing predicate check on the initial value of an
object whose declaration initializes the object with an aggregate. Such
a declaration is marked No_Initialization to prevent a call to a default
initialization procedure, but the check is needed on the value of the
aggregate.
Executing the following:
gnatmake -q -gnata pred
./pred
must yield:
raised SYSTEM.ASSERTIONS.ASSERT_FAILURE :
Dynamic_Predicate failed at root.ads:30
----
with Root;
procedure Pred is
begin
null;
end Pred;
----
package Root with SPARK_Mode is
type Index_Type is range 1 .. Natural'Last;
type Element_Type is private;
Null_Element : constant Element_Type;
type Foobar_Type is array (Index_Type range <>) of Element_Type
with Dynamic_Predicate =>
Foobar_Type'First > 0 and Foobar_Type'Length > 0;
Null_Foobar : constant Foobar_Type;
private
type Kind_Type is (Kind_Invalid, Kind_Valid);
type Element_Type (Kind : Kind_Type := Kind_Invalid) is record
Index1 : Index_Type;
case Kind is
when Kind_Valid =>
Index2 : Index_Type;
when Kind_Invalid =>
null;
end case;
end record;
Null_Element : constant Element_Type := (Kind => Kind_Invalid,
Index1 => Index_Type'First);
Null_Foobar : constant Foobar_Type := (1 .. 0 => Null_Element);
end Root;
2018-12-11 Ed Schonberg <schonberg@adacore.com>
gcc/ada/
* sem_ch3.adb (Analyze_Object_Declaration): Apply
Dynamic_Predicate check to an object of an array type
initialized with an aggregate.
From-SVN: r267002
The following patch corrects the freezing of entities to properly
preserve all freeze nodes in case of recursive freezing when the context
is ignored Ghost, and the construct frozen is non-Ghost.
2018-12-11 Hristian Kirtchev <kirtchev@adacore.com>
gcc/ada/
* freeze.adb (Add_To_Result): Move the ignored Ghost-specific
handling of freeze nodes to...
(Freeze_Entity): ...here. This ensures that the freeze nodes of
constructs that have recursive freezing are preserved when the
context is ignored Ghost, and the top level construct being
frozen is non-Ghost.
gcc/testsuite/
* gnat.dg/ghost3.adb, gnat.dg/ghost3.ads: New testcase.
From-SVN: r267001
2018-12-11 Ed Schonberg <schonberg@adacore.com>
gcc/ada/
* uintp.ads, uintp.adb (UI_From_Integral): New generic function,
to simplify construction of Universal_Integer representations
from any Integer type. If type is small enough the code is
equivalent to a call to UI_To_Int with appropriate conversions;
otherwise the routine uses the existing mechanism of building a
vector of suitable integer values and calling Vector_To_Uint.
The routine must not be applied to a biased type.
From-SVN: r267000
This patch fixes a crash on a function that builds its limited result in
place. Previously this was handled properly only if the function was a
child unit.
2018-12-11 Ed Schonberg <schonberg@adacore.com>
gcc/ada/
* sem_ch3.adb (Build_Itype_Reference): Handle properly an itype
reference created for a function that is a compilation unit, for
example if the function builds in place an object of a limited
type.
gcc/testsuite/
* gnat.dg/bip_cu.adb, gnat.dg/bip_cu_constructor.adb,
gnat.dg/bip_cu_constructor.ads, gnat.dg/bip_cu_t.adb,
gnat.dg/bip_cu_t.ads: New testcase.
From-SVN: r266999
2018-12-11 Dmitriy Anisimkov <anisimko@adacore.com>
gcc/ada/
* libgnat/g-socket.ads, libgnat/g-socket.adb: Fix duration
computations to be compatible with the type for socket timeouts
on Windows.
From-SVN: r266998
2018-12-11 Gary Dismukes <dismukes@adacore.com>
gcc/ada/
* exp_util.ads: Use preferred U.S. spelling of "honored".
* sem_spark.adb: Remove extra whitespace.
From-SVN: r266997
This patch updates freezing to ensure that freeze nodes are inserted
into the tree when the entity being frozen is non-Ghost, and the context
is an ignored Ghost spec expression.
2018-12-11 Hristian Kirtchev <kirtchev@adacore.com>
gcc/ada/
* exp_util.adb (Insert_Action): Add new formal parameter
Spec_Expr_OK.
(Insert_Actions): Add new formal parameter Spec_Expr_OK. Update
all calls to Insert_Actions where relevant. Honour an insertion
from a spec expression context when requested by the caller.
* exp_util.ads (Insert_Action): Add new formal parameter
Spec_Expr_OK.
(Insert_Actions): Add new formal parameter Spec_Expr_OK.
* freeze.adb (Add_To_Result): Force the insertion of the freeze
node even when the context is a spec expression.
gcc/testsuite/
* gnat.dg/ghost2.adb, gnat.dg/ghost2.ads: New testcase.
From-SVN: r266996
Those tools need a dedicated repository as they're VxWorks specific and
not related with the Ada front-end.
2018-12-11 Jerome Lambourg <lambourg@adacore.com>
gcc/ada/
* vxaddr2line.adb, vxlink-bind.adb, vxlink-bind.ads,
vxlink-link.adb, vxlink-link.ads, vxlink-main.adb, vxlink.adb,
vxlink.ads: Remove.
* gcc-interface/Make-lang.in, gcc-interface/Makefile.in: Remove
bits for vxaddr2line.
From-SVN: r266995
This ensures that the compiler fully implements the C.6(19) clause of
the Ada Reference Manual and gives a warning when the clause does change
the passing mechanism of the affected parameter.
2018-12-11 Eric Botcazou <ebotcazou@adacore.com>
gcc/ada/
* fe.h (Is_Atomic_Object): Declare.
(Is_Volatile_Object): Likewise.
* gcc-interface/trans.c (atomic_or_volatile_copy_required_p):
New.
(Call_to_gnu): Generate a copy for an actual parameter passed by
reference if the conditions set forth by RM C.6(19) are met and
specificially deal with an atomic actual parameter.
gcc/testsuite/
* gnat.dg/atomic11.adb, gnat.dg/atomic11_pkg1.ads,
gnat.dg/atomic11_pkg2.ads: New testcase.
From-SVN: r266993
The intuition behind the Is_Subprogram_Stub_Without_Prior_Declaration
utility routine is to detect stubs that act as subprogram declarations
and False on stubs that act as completions. This behaviour is now fixed
for stubs that correspond to generic subprogram declarations.
This patch affects a routine that is only used in GNATprove, so no
frontend test provided. An example where the result changed from True to
False is:
-----------
-- p.ads --
-----------
package P is
generic
procedure Proc;
end P;
-----------
-- p.adb --
-----------
package body P is
procedure Proc is separate; -- now we return False for this stub
end P;
----------------
-- p-proc.adb --
----------------
separate (P)
procedure Proc is
begin
null;
end;
2018-12-11 Piotr Trojanek <trojanek@adacore.com>
gcc/ada/
* sem_util.adb (Is_Subprogram_Stub_Without_Prior_Declaration):
Return False on stubs that complete a generic subprogram.
* sem_util.ads: Update corresponding comment.
From-SVN: r266992
2018-12-11 Ed Schonberg <schonberg@adacore.com>
gcc/ada/
* sem_ch4.adb (Analyze_Allocator): In GNATprove mode build a
subtype declaration if the allocator has a subtype indication
with a constraint. This allows additional proofs to be applied
to allocators that designate uninitialized constrained objects.
From-SVN: r266991
SPARK RM has been updated to support access types in SPARK. Part of this
support is that now SPARK RM 3.1 lists access types as having full
default initialization. Now updated.
There is no impact on compilation.
2018-12-11 Yannick Moy <moy@adacore.com>
gcc/ada/
* sem_util.adb (Has_Full_Default_Initialization): Consider
access types as having full default initialization.
From-SVN: r266990
When a compilation switch is wrongly passed to GNATprove without the
leading hyphen, this patch issues a clear error message instead of the
obscure 'usage' message previously displayed.
There is no impact on compilation.
2018-12-11 Yannick Moy <moy@adacore.com>
gcc/ada/
* gnat1drv.adb (Gnat1drv): Issue specific error message in
GNATprove mode when multiple file names on the command line.
* osint.adb, osint.ads (Dump_Command_Line_Source_File_Names):
New procedure to print file names on the command line.
From-SVN: r266989
2018-12-11 Javier Miranda <miranda@adacore.com>
gcc/ada/
* exp_aggr.adb (Convert_To_Assignments): When gnerating C, do
not declare a temporary to initialize an aggregate assigned to
Out or In_Out parameters whose type has no discriminants. This
avoids stack overflow errors at runtime.
From-SVN: r266988
This patch extends the previous algorithm for creating an explicit
elaboration procedure for a package body when expansion generates
subprograms in the statement part of the body. For unnesting to work
properly, these subprograms must appear within an explicit subprogram
body so that uplevel references can be placed in the proper activation
record.
Ongoing work for LLVM generation.
2018-12-11 Ed Schonberg <schonberg@adacore.com>
gcc/ada/
* exp_ch7.adb (Check_Unnesting_Elaboration_Code): Extend
algorithm to cover subprograms generated in nested loops and in
exception handlers, in order to build an explicit elaboration
procedure in more complex cases.
From-SVN: r266987
The GNAT-defined aspect Predicate has the same semantics as the Ada
aspect Dynamic_Predicate, including direct visibility to the components
of a record type to which the aspect applies.
The following must compile quietly:
gcc -c integer_stacks.ads
----
pragma SPARK_Mode (On);
with Bounded_Stacks;
package Integer_Stacks is
new Bounded_Stacks (Element => Integer, Default_Element => 0);
----
generic
type Element is private;
Default_Element : Element;
package Bounded_Stacks is
type Stack (Capacity : Positive) is tagged private
with Default_Initial_Condition => Empty (Stack);
function "=" (Left, Right : Stack) return Boolean;
function Extent (This : Stack) return Natural;
function Empty (This : Stack) return Boolean;
function Full (This : Stack) return Boolean;
procedure Reset (This : out Stack) with
Post'Class => Empty (This) and
not Full (This),
Global => null,
Depends => (This =>+ null);
procedure Push (This : in out Stack; Item : Element) with
Pre'Class => not Full (This) and
Extent (This) < This.Capacity,
Post'Class => not Empty (This) and
Extent (This) = Extent (This'Old) + 1,
Global => null,
Depends => (This =>+ Item);
procedure Pop (This : in out Stack; Item : out Element) with
Pre'Class => not Empty (This),
Post'Class => not Full (This) and
Extent (This) = Extent (This'Old) - 1,
Global => null,
Depends => (This =>+ null, Item => This);
function Peek (This : Stack) return Element with
Pre'Class => not Empty (This),
Global => null,
Depends => (Peek'Result => This);
private
type Contents is array (Positive range <>) of Element;
type Stack (Capacity : Positive) is tagged record
Values : Contents (1 .. Capacity); -- := (others => Default_Element);
-- Top : Natural;
Top : Natural := 0;
end record with Predicate => Top <= Capacity,
Annotate => (GNATprove,
Intentional,
"type ""Stack"" is not fully initialized",
"Because zeroing Top is sufficient");
end Bounded_Stacks;
----
package body Bounded_Stacks is
------------
-- Extent --
------------
function Extent (This : Stack) return Natural is
(This.Top);
-----------
-- Empty --
-----------
function Empty (This : Stack) return Boolean is
(This.Top = 0);
----------
-- Full --
----------
function Full (This : Stack) return Boolean is
(This.Top = This.Capacity);
-----------
-- Reset --
-----------
procedure Reset (This : out Stack) is
begin
This := (This.Capacity, Top => 0, others => <>);
-- This.Top := 0;
end Reset;
----------
-- Push --
----------
procedure Push (This : in out Stack; Item : Element) is
begin
This.Top := This.Top + 1;
This.Values (This.Top) := Item;
end Push;
---------
-- Pop --
---------
procedure Pop (This : in out Stack; Item : out Element) is
begin
Item := This.Values (This.Top);
This.Top := This.Top - 1;
end Pop;
----------
-- Peek --
----------
function Peek (This : Stack) return Element is
(This.Values (This.Top));
---------
-- "=" --
---------
function "=" (Left, Right : Stack) return Boolean is
begin
if Left.Top /= Right.Top then
return False;
else
for K in 1 .. Left.Top loop
if Left.Values (K) /= Right.Values (K) then
return False;
end if;
end loop;
return True;
end if;
end "=";
end Bounded_Stacks;
----
2018-12-11 Ed Schonberg <schonberg@adacore.com>
gcc/ada/
* sem_ch13.adb (Check_Aspect_At_End_Of_Declarations,
Freeze_Entity_Checks): Process aspect Predicate in the same
fashion as aspect Dynamic_Predicate.
From-SVN: r266985
The following should compile quietly:
$ gcc -c p-proc.ads -gnatc
procedure P.Proc is new G;
with Q;
package P is
generic procedure G;
end P;
with System;
with Unchecked_Conversion;
package Q is
generic package Inner_G is
type T is access all Integer;
function Cnv is new Unchecked_Conversion (System.Address, T);
end Inner_G;
end Q;
2018-12-11 Eric Botcazou <ebotcazou@adacore.com>
gcc/ada/
* gcc-interface/trans.c (elaborate_all_entities_for_package):
Skip aliasing subprograms.
From-SVN: r266984
2018-12-11 Javier Miranda <miranda@adacore.com>
gcc/ada/
* exp_aggr.adb (In_Object_Declaration): Removed.
(Is_CCG_Supported_Aggregate): New subprogram that replaces
In_Object_Declaration extending its functionality to indicate if
an aggregate is in a context supported by the CCG backend.
From-SVN: r266982
This patch fixes spurious errors on aspect specifications on record
types when the aspect expression references a component of the type that
is not a discriminant. The patch also cleans up the legality checks on
aspect specifications, and improves error message on illegal aspect
specifications whose expressions are not conformant between
specification and freeze point, because of changes in visibility.
2018-12-11 Ed Schonberg <schonberg@adacore.com>
gcc/ada/
* sem_ch13.adb (Push_Type, Pop_Type): New procedures, used for
analysis of aspect expressions for record types, whose
components (not only discriminants) may be referenced in aspect
expressions.
(Analyze_Aspect_Specifications, Analyze_Aspects_At_Freeze_Point,
Analyze_Aspect_At_End-Of_Declarations,
Resolve_Aspect_Expressions): Use the new subprograms.
(Check_Aspect_At_End_Of_Declarations): Improve error message.
(Build_Predicate_Functions): Do not build their bodies in a
generic unit.
(Is_Derived_Type_With_Constraint): New subprogram to uncover and
reject aspect specificationss on types that appear after the
type is frozen.
* sem_ch13.ads (Push_Scope_And_Install_Discriminants,
Uninstall_Discriminants_And_Pop_Scope): Remove.
* sem_ch6.adb, sem_ch6.ads (Fully_Conformant_Expressions):
Additional parameter to improve error message on illegal aspect
specifications whose resolution differ between aspect
specification and freeze point.
* freeze.adb: Remove references to
Install/Uninstall_Discriminants.
gcc/testsuite/
* gnat.dg/aspect1.adb, gnat.dg/aspect1_horizontal.adb,
gnat.dg/aspect1_horizontal.ads, gnat.dg/aspect1_vectors_2d.ads:
New testcase.
* gnat.dg/static_pred1.adb: Expect an error message.
From-SVN: r266980
This patch corrects an issue whereby a set of nested subunits including
subprogram subunits acting as bodies would cause a crash when a child
subunit "withs" an ansestor in certain instances due to a mismanagment
of the scope stack.
------------
-- Source --
------------
-- w.ads
package W is
end;
-- w-b.ads
package W.B is
pragma Elaborate_Body;
end;
-- w-b.adb
with W.B.C;
package body w.B is end;
-- w-b-c.adb
with W;
procedure W.B.C is
package D is
procedure E;
end;
package body D is separate;
begin
null;
end;
-- w-b-c-d.adb
separate (W.B.C)
package body D is
procedure E is separate;
end;
-- w-b-c-d-e.adb
with W;
separate (W.B.C.D)
procedure E is
begin
null;
end;
-----------------
-- Compilation --
-----------------
$ gnatmake -q w-b.adb
2018-12-11 Justin Squirek <squirek@adacore.com>
gcc/ada/
* sem_ch10.adb (Analyze_Subunit): Modify conditional to fully
remove parent contexts from library-level subprogram bodies in
addition to package bodies.
From-SVN: r266978
2018-12-11 Eric Botcazou <ebotcazou@adacore.com>
gcc/ada/
* fe.h (Debug_Generated_Code): Declare.
* gcc-interface/gigi.h (enum inline_status_t): Rename
is_disabled to is_default, is_enabled to is_requested and add
is_prescribed.
* gcc-interface/decl.c (inline_status_for_subprog): New function.
(gnat_to_gnu_entity) <E_Subprogram_Type>: Use it to get the
inlining status of the subprogram.
* gcc-interface/trans.c (gigi): Adjust to above renaming.
(build_raise_check): Likewise.
(Compilation_Unit_to_gnu): Likewise.
(gnat_to_gnu): Likewise.
* gcc-interface/utils.c (create_subprog_decl): Likewise. Deal
with is_prescribed status by setting
DECL_DISREGARD_INLINE_LIMITS. Do not set the
DECL_NO_INLINE_WARNING_P flag if Debug_Generated_Code is true.
From-SVN: r266976
...specifically, those for builtins. Soft float can be enabled
implicitly, too (for certain CPUs for example). We should use
rs6000_isa_flags instead, to decide whether to expand a builtin or
to bail out with an error instead.
PR target/88145
* config/rs6000/rs6000.c (rs6000_expand_zeroop_builtin): Use
rs6000_isa_flags instead of rs6000_isa_flags_explicit to decide
whether soft float is enabled.
(rs6000_expand_mtfsb_builtin): Ditto.
(rs6000_expand_set_fpscr_rn_builtin): Ditto.
(rs6000_expand_set_fpscr_drn_builtin): Ditto.
From-SVN: r266973
gcc/ChangeLog:
PR tree-optimization/86196
* gimple-ssa-warn-restrict.c (builtin_memref::builtin_memref): Use
base size only of arrays.
gcc/testsuite/ChangeLog:
PR tree-optimization/86196
* gcc.dg/Wrestrict-18.c: New test.
From-SVN: r266967
This deletes powerpcspe, which was deprecated for GCC 8.
This does not change the testsuite, or libgcc for rs6000 (which still
is shared code with powerpcspe, so can use some cleanup after this).
/
* contrib/config-list.mk: Remove powerpc-eabispe and powerpc-linux_spe.
gcc/
* config.gcc (Obsolete configurations): Delete powerpc*-*-*spe*.
(Unsupported targets): Add powerpc*-*-*spe*.
(powerpc*-*-*spe*): Delete.
(powerpc-*-eabispe*): Delete.
(powerpc-*-rtems*spe*): Delete.
(powerpc*-*-linux*spe*): Delete.
(powerpc*-*-linux*): Do not handle the linux*spe* targets.
(powerpc-wrs-vxworks*spe): Delete.
(with_cpu setting code): Delete powerpc*-*-*spe* handling.
* config.host (target powerpc*-*-*spe*): Delete.
* doc/invoke.texi (PowerPC SPE Options): Delete.
(PowerPC SPE Options): Delete.
* config/powerpcspe: Delete.
From-SVN: r266961
2018-12-10 Steven G. Kargl <kargl@gcc.gnu.org>
PR fortran/88269
* io.c (io_constraint): Update macro. If locus line buffer is NULL,
use gfc_current_locus in error messages.
(check_io_constraints): Catch missing IO UNIT in write and read
statements. io_constraint macro is incompatible here.
2018-12-10 Steven G. Kargl <kargl@gcc.gnu.org>
PR fortran/88269
* gfortran.dg/pr88269.f90: New test.
From-SVN: r266959
This test was copied from 27_io/filesystem/path/query/is_absolute.cc but
should have been modified to test the path type from the TS instead of
std::filesystem::path.
* testsuite/experimental/filesystem/path/query/is_absolute.cc: Fix
test to use TS, not C++17.
From-SVN: r266957
2018-12-10 Richard Biener <rguenther@suse.de>
* tree-affine.c (tree_to_aff_combination): Remove unreachable
MEM_REF case.
(aff_combination_expand): Cache on SSA names, not possibly
on conversion trees. Avoid expanding cases we do not handle.
From-SVN: r266956
2018-12-10 Richard Biener <rguenther@suse.de>
PR tree-optimization/88427
* vr-values.c (vr_values::extract_range_from_phi_node):
Handle symbolic ranges conservatively when trying to drop
to Inf +- 1.
* gcc.dg/pr88427.c: New testcase.
From-SVN: r266955
2018-12-10 Martin Jambor <mjambor@suse.cz>
PR ipa/88214
* ipa-prop.c (determine_locally_known_aggregate_parts): Make sure
we check pointers against pointers.
testsuite/
* gcc.dg/ipa/pr88214.c: New test.
From-SVN: r266953
