Richard Sandiford [Thu, 11 Jan 2018 13:07:17 +0000 (13:07 +0000)]
[AArch64] Avoid GET_MODE_NUNITS in v8.4 support
This patch replaces GET_MODE_NUNITS in some of the v8.4 support
with equivalent values, in preparation for the switch to
NUM_POLY_INT_COEFFS==2.
2018-01-11 Richard Sandiford <richard.sandiford@linaro.org>
gcc/
* config/aarch64/aarch64-simd.md
(aarch64_fml<f16mac1>l<f16quad>_low<mode>): Avoid GET_MODE_NUNITS.
(aarch64_fml<f16mac1>l<f16quad>_high<mode>): Likewise.
(aarch64_fml<f16mac1>l_lane_lowv2sf): Likewise.
(aarch64_fml<f16mac1>l_lane_highv2sf): Likewise.
(aarch64_fml<f16mac1>lq_laneq_lowv4sf): Likewise.
(aarch64_fml<f16mac1>lq_laneq_highv4sf): Likewise.
(aarch64_fml<f16mac1>l_laneq_lowv2sf): Likewise.
(aarch64_fml<f16mac1>l_laneq_highv2sf): Likewise.
(aarch64_fml<f16mac1>lq_lane_lowv4sf): Likewise.
(aarch64_fml<f16mac1>lq_lane_highv4sf): Likewise.
From-SVN: r256530
Prathamesh Kulkarni [Thu, 11 Jan 2018 12:13:42 +0000 (12:13 +0000)]
re PR target/83514 (ABRT in arm_declare_function_name passing a null pointer to std::string)
2018-01-11 Prathamesh Kulkarni <prathamesh.kulkarni@linaro.org>
PR target/83514
* config/arm/arm.c (arm_declare_function_name): Set arch_to_print if
targ_options->x_arm_arch_string is non NULL.
From-SVN: r256529
Richard Biener [Thu, 11 Jan 2018 12:12:39 +0000 (12:12 +0000)]
re PR lto/81968 (early lto debug objects make Solaris ld SEGV)
2018-01-11 Richard Biener <rguenther@suse.de>
Rainer Orth <ro@CeBiTec.Uni-Bielefeld.DE>
PR lto/81968
libiberty/
* simple-object-common.h (struct simple_object_functions):
Change copy_lto_debug_sections callback signature.
* simple-object-elf.c (SHN_HIRESERVE, SHT_SYMTAB_SHNDX,
SHF_INFO_LINK): Add defines.
(simple_object_elf_copy_lto_debug_sections): Instead of
leaving not to be copied sections empty unnamed SHT_NULL
remove them from the target section headers and adjust section
reference everywhere. Handle SHN_XINDEX in the symbol table
processing properly.
* simple-object.c (handle_lto_debug_sections): Change
interface to return a modified string and handle renaming
of relocation sections.
Co-Authored-By: Rainer Orth <ro@CeBiTec.Uni-Bielefeld.DE>
From-SVN: r256528
Tamar Christina [Thu, 11 Jan 2018 11:56:22 +0000 (11:56 +0000)]
2018-01-11 Tamar Christina <tamar.christina@arm.com>
* config/aarch64/aarch64.h
(AARCH64_FL_FOR_ARCH8_4): Add AARCH64_FL_DOTPROD.
gcc/testsuite/
2018-01-11 Tamar Christina <tamar.christina@arm.com>
* gcc.target/aarch64/advsimd-intrinsics/vdot-compile-2.c: New.
From-SVN: r256527
Sudakshina Das [Thu, 11 Jan 2018 10:46:59 +0000 (10:46 +0000)]
[PR82096] Fix ICE in int_mode_for_mode with arm-linux-gnueabi
The bug reported a particular test di-longlong64-sync-1.c failing when run
on arm-linux-gnueabi with options -mthumb -march=armv5t -O[g,1,2,3] and
-mthumb -march=armv6 -O[g,1,2,3].
The crash was caused because of the explicit VOIDmode argument that is sent
to emit_store_flag_force () and that the emit_store_flag_force () was not
handling the VOIDmode adequately. This patch fixes that.
ChangeLog entries:
*** gcc/ChangeLog ***
2017-01-11 Sudakshina Das <sudi.das@arm.com>
PR target/82096
* expmed.c (emit_store_flag_force): Swap if const op0
and change VOIDmode to mode of op0.
*** gcc/testsuite/ChangeLog ***
2017-01-11 Sudakshina Das <sudi.das@arm.com>
PR target/82096
* gcc.c-torture/compile/pr82096.c: New test.
From-SVN: r256526
Richard Sandiford [Thu, 11 Jan 2018 09:54:26 +0000 (09:54 +0000)]
Fix mode_for_size units in caller-save.c (PR83761)
The new opt_mode asserts triggered for replace_reg_with_saved_mem
because it was passing bytes rather than bits to mode_for_size.
Previously we ended up with a BLKmode register instead, but
presumably that didn't matter because this is "only" used for
debug insns.
2018-01-11 Richard Sandiford <richard.sandiford@linaro.org>
gcc/
PR rtl-optimization/83761
* caller-save.c (replace_reg_with_saved_mem): Pass bits rather
than bytes to mode_for_size.
From-SVN: r256525
Gary Dismukes [Thu, 11 Jan 2018 08:56:18 +0000 (08:56 +0000)]
[Ada] Warning on out-of-range value for default-initialized scalar object
When an object of a type with a specified Default_Value aspect is
declared without an explicit initial value and the default value is
out of range of the objects subtype, the compiler now issues a warning
that Constraint_Error will be raised due to an out-of-range value.
The test below must output a compiler warning as follows:
$ gcc -c -gnatj70 default_warning.adb
default_warning.adb:7:08: warning: value not in range of type
"Subint" defined at line 5,
"Constraint_Error" will be raised at run
time
procedure Default_Warning is
type Int_With_Default is new Integer with Default_Value => 0;
subtype Subint is Int_With_Default range 1 .. 100;
S : Subint;
begin
null;
end Default_Warning;
2018-01-11 Gary Dismukes <dismukes@adacore.com>
gcc/ada/
* exp_ch3.adb (Default_Initialize_Object): Call New_Copy_Tree on the
result of Get_Simple_Init_Value and pass the source location of the
object declaration's object_definition.
From-SVN: r256524
Ed Schonberg [Thu, 11 Jan 2018 08:56:12 +0000 (08:56 +0000)]
[Ada] Crash on build-in-place call with address specification for target
The presence of an address clause complicates the build-in-place expansion
because the indicated address must be processed before the indirect call is
generated, including the definition of a local pointer to the object.
The address clause may come from an aspect specification or from an explicit
attribute specification appearing after the object declaration. These two
cases require different processing.
2018-01-11 Ed Schonberg <schonberg@adacore.com>
gcc/ada/
* exp_ch6.adb (Make_Build_In_Place_Call_In_Object_Declaration): Handle
properly object declarations with initializations that are
build-in-place function calls, when there is an address specification,
either as an aspect specification or an explicit attribute
specification clause, for the initialized object.
* freeze.adb (Check_Address_Clause): Do not remove side-effects from
initial expressions in the case of a build-in-place call.
gcc/testsuite/
* gnat.dg/bip_overlay.adb, gnat.dg/bip_overlay.ads: New testcase.
From-SVN: r256523
Piotr Trojanek [Thu, 11 Jan 2018 08:56:07 +0000 (08:56 +0000)]
[Ada] Allow uses of range utility routines on private types
Frontend only calls Is_Null_Range and Not_Null_Range routines on full views
of types, but backends (for example GNATprove) might call them also on
private types. This patch adapts those routines to transparently retrieve
the full type when called on a private type.
No frontend test, because only external backends are affected.
2018-01-11 Piotr Trojanek <trojanek@adacore.com>
gcc/ada/
* sem_eval.adb (Is_Null_Range): Retrieve the full view when called on a
private (sub)type; refactor to avoid early return statement.
(Not_Null_Range): Same as above.
From-SVN: r256522
Hristian Kirtchev [Thu, 11 Jan 2018 08:55:57 +0000 (08:55 +0000)]
[Ada] Prohibit concurrent types in Ghost regions
This patch ensures that single concurrent type declarations are marked as Ghost
when they appear within a Ghost region. In addition, the patch verifies that no
concurrent type is declared within a Ghost region and issues an error.
------------
-- Source --
------------
-- types.ads
package Types with Ghost is
protected Prot_Obj is -- Error
end Prot_Obj;
protected type Prot_Typ is -- Error
end Prot_Typ;
task Task_Obj; -- Error
task type Task_Typ; -- Error
end Types;
----------------------------
-- Compilation and output --
----------------------------
$ gcc -c types.ads
types.ads:2:14: ghost type "Prot_Obj" cannot be concurrent
types.ads:5:19: ghost type "Prot_Typ" cannot be concurrent
types.ads:8:09: ghost type "Task_Obj" cannot be concurrent
types.ads:10:14: ghost type "Task_Typ" cannot be concurrent
2018-01-11 Hristian Kirtchev <kirtchev@adacore.com>
gcc/ada/
* freeze.adb (Freeze_Entity): Ensure that a Ghost type is not
concurrent, nor effectively volatile.
* ghost.adb (Check_Ghost_Type): New routine.
* ghost.ads (Check_Ghost_Type): New routine.
* sem_util.adb (Is_Declaration): Reimplemented. The routine can now
consider specific subsets of declarations.
(Is_Declaration_Other_Than_Renaming): Removed. Its functionality is
replicated by Is_Declaration.
* sem_util.ads (Is_Declaration): New parameter profile. Update the
comment on usage.
(Is_Declaration_Other_Than_Renaming): Removed.
From-SVN: r256521
Hristian Kirtchev [Thu, 11 Jan 2018 08:55:52 +0000 (08:55 +0000)]
[Ada] Detection of illegal constituent assignments
This patch modifies the analysis of assignment statements to detect an illegal
attempt to alter the value of single protected type Part_Of constituent when
inside a protected function.
2018-01-11 Hristian Kirtchev <kirtchev@adacore.com>
gcc/ada/
* sem_ch5.adb (Analyze_Assignment): Assignments to variables that act
as Part_Of consituents of single protected types are illegal when they
take place inside a protected function.
(Diagnose_Non_Variable_Lhs): Use Within_Function to check for an
enclosing function.
(Is_Protected_Part_Of_Constituent): New routine.
(Within_Function): New routine.
gcc/testsuite/
* gnat.dg/protected_func.adb, gnat.dg/protected_func.ads: New testcase.
From-SVN: r256520
Arnaud Charlet [Thu, 11 Jan 2018 08:55:25 +0000 (08:55 +0000)]
[Ada] Bump copyright notices to 2018
2018-01-11 Arnaud Charlet <charlet@adacore.com>
gcc/ada/
Bump copyright notices to 2018.
From-SVN: r256519
Hristian Kirtchev [Thu, 11 Jan 2018 08:54:39 +0000 (08:54 +0000)]
[Ada] Minor reformatting
2018-01-11 Hristian Kirtchev <kirtchev@adacore.com>
gcc/ada/
* binde.adb, par-ch6.adb, par-ch9.adb, sem_ch12.adb, sem_ch13.adb:
Minor reformatting.
From-SVN: r256518
Justin Squirek [Thu, 11 Jan 2018 08:54:34 +0000 (08:54 +0000)]
[Ada] No error on missing enclosing parentheses in Expression Function
This patch fixes an issue whereby an expression within an expression
function declaration or completion without proper parenthesization is
incorrectly accepted by the compiler.
2018-01-11 Justin Squirek <squirek@adacore.com>
gcc/ada/
* par-ch6.adb (Scan_Body_Or_Expression_Function): Add additional check
to make sure a given expression function is properly parenthesized.
gcc/testsuite/
* gnat.dg/expr_func4.adb: New testcase.
From-SVN: r256517
Hristian Kirtchev [Thu, 11 Jan 2018 08:54:26 +0000 (08:54 +0000)]
[Ada] Missing diagnostic of categorization dependency
This patch modifies the analysis of subprogram bodies to catch a case where a
pure subprogram body unit depends on non-pure units.
2018-01-11 Hristian Kirtchev <kirtchev@adacore.com>
gcc/ada/
* sem_ch6.adb (Analyze_Subprogram_Body_Helper): Check the
categorization of a subprogram body which does not complete a previous
declaration.
gcc/testsuite/
* gnat.dg/pure_subp_body.adb, gnat.dg/pure_subp_body_pkg.ads: New
testcase.
From-SVN: r256516
Hristian Kirtchev [Thu, 11 Jan 2018 08:54:21 +0000 (08:54 +0000)]
[Ada] Incorrect diagnostic on illegal with clause
This patch updates the detection of illegal with clauses which import private
child packages to properly detect a grandchild of Ada.
------------
-- Source --
------------
-- fake.ads
package Fake is
end Fake;
-- fake-ada.ads
package Fake.Ada is
end Fake.Ada;
-- fake-ada-text_io.ads
package Fake.Ada.Text_IO is
end Fake.Ada.Text_IO;
-- fake-ada-text_io-float_io.ads
private generic
type Num is digits <>;
package Fake.Ada.Text_IO.Float_IO is
end Fake.Ada.Text_IO.Float_IO;
-- fake-float_io.ads
private generic
type Num is digits <>;
package Fake.Float_IO is
end Fake.Float_IO;
-- main.ads
with Fake.Ada.Text_IO.Float_IO;
with Fake.Float_IO;
package Main is
end Main;
----------------------------
-- Compilation and output --
----------------------------
$ gcc -c main.ads
main.ads:1:06: unit in with clause is private child unit
main.ads:1:06: current unit must also have parent "Text_IO"
main.ads:2:06: unit in with clause is private child unit
main.ads:2:06: current unit must also have parent "Fake"
2018-01-11 Hristian Kirtchev <kirtchev@adacore.com>
gcc/ada/
* sem_ch10.adb (Check_Private_Child_Unit): Ensure that the enclosing
scope of package Ada is Standard.
From-SVN: r256515
Ed Schonberg [Thu, 11 Jan 2018 08:54:17 +0000 (08:54 +0000)]
[Ada] Spurious error on referene to subcoponrnt in dynamic predicate
This patch fixes a visibility error in the expression for a dynamic predicate
of a record type, when the expression contains a reference to a subcomponent
of the record given by a selected component whose prefix is the name of the
enclosing component.
Executing
gnatmake -q -gnata main
./main
must yield:
TGV OK
Amtrak broken, as usual
----
with Text_IO; use Text_IO;
with Recpred; use Recpred;
procedure Main is
TGV : Train_Data;
Amtrak : Train_Data;
begin
TGV := (20, (10,10));
Put_Line ("TGV OK");
begin
Amtrak := (30, (40, 40));
exception
when Others =>
Put_Line ("Amtrak broken, as usual");
end;
end;
----
package Recpred is
type Train_Position is record
TTD : Integer;
VSS : Integer;
end record;
type Train_Data is record
MA : Integer;
Front_Position : Train_Position;
end record
with Dynamic_Predicate => MA >= Front_Position.TTD;
end Recpred;
2018-01-11 Ed Schonberg <schonberg@adacore.com>
gcc/ada/
* sem_ch13.adb (Replace_Type_Ref): Handle properly reference to a
subcomponent of the current entity when building the body for a dynamic
predicate function for a record with composite subcomponents.
From-SVN: r256514
Hristian Kirtchev [Thu, 11 Jan 2018 08:54:12 +0000 (08:54 +0000)]
[Ada] Secondary stack leaks during object initialization
This patch modifies the transient scope mechanism to prevent secondary stack
leaks during object initialization. The modifications are as follows:
1) Prior to this change, the secondary stack was never managed within type
initialization procedures, for reasons unknown. It is speculated that the
controlled type model used at that time may have influenced this decision.
The secondary stack is now managed within type initialization procedures
in order to recover the memory once individual components or whole objects
are initialized.
2) A transient scope now delegates the secondary stack management to an
enclosing scope if there is no suitable context to wrap. This ensures that
the requirement to manage the secondary stack is not lost when the scope was
established for that purpose in mind.
3) A previous mechanism which examined the definition of a type (recursively)
to determine whether the type will involve the secondary stack was removed
because a) the mechanism could not detect this need with certainty, and b) the
trigger for secondary stack usage is now moved to the resolution of function
calls, which is always accurate.
------------
-- Source --
------------
-- types.ads
with Ada.Finalization; use Ada.Finalization;
package Types is
type Ctrl is new Controlled with record
Id : Integer;
end record;
procedure Initialize (Obj : in out Ctrl);
function Make_Ctrl return Ctrl;
function Make_Ctrl_From (Obj : Ctrl) return Ctrl;
type Constr is array (1 .. 3) of Ctrl;
type Unconstr is array (Integer range <>) of Ctrl;
function Make_Constr return Constr;
function Make_Unconstr (Low : Integer; High : Integer) return Unconstr;
type Rec_1 is new Controlled with record
Comp : Ctrl := Make_Ctrl;
end record;
type Rec_2 is new Controlled with record
Comp : Ctrl := Make_Ctrl_From (Make_Ctrl);
end record;
type Rec_3 is new Controlled with record
Comp : Constr := Make_Constr;
end record;
type Rec_4 is new Controlled with record
Comp : Unconstr (1 .. 3) := Make_Unconstr (1, 3);
end record;
type Rec_5 is record
Comp : Integer := 1 + Make_Ctrl.Id;
end record;
type Rec_6 is record
Comp : Boolean := (for all X in 1 .. Make_Ctrl.Id =>
X = Make_Ctrl.Id);
end record;
end Types;
-- types.adb
package body Types is
Id_Gen : Integer := 0;
procedure Initialize (Obj : in out Ctrl) is
begin
Id_Gen := Id_Gen + 1;
Obj.Id := Id_Gen;
end Initialize;
function Make_Constr return Constr is
Result : constant Constr := (others => Make_Ctrl);
begin
return Result;
end Make_Constr;
function Make_Ctrl return Ctrl is
Result : Ctrl;
begin
return Result;
end Make_Ctrl;
function Make_Ctrl_From (Obj : Ctrl) return Ctrl is
Result : Ctrl;
begin
Result.Id := Obj.Id;
return Result;
end Make_Ctrl_From;
function Make_Unconstr (Low : Integer; High : Integer) return Unconstr is
Result : constant Unconstr (Low .. High) := (others => Make_Ctrl);
begin
return Result;
end Make_Unconstr;
end Types;
-- maker.ads
generic
type Obj_Typ is private;
procedure Maker (Count : Positive);
-- maker.adb
procedure Maker (Count : Positive) is
procedure Create is
Obj : Obj_Typ;
pragma Warnings (Off, Obj);
begin null; end Create;
begin
for Iter in 1 .. Count loop
Create;
end loop;
end Maker;
-- leaks.adb
with Maker;
with Types; use Types;
with Maker;
with Types; use Types;
procedure Leaks is
procedure Make_1 is new Maker (Rec_1);
procedure Make_2 is new Maker (Rec_2);
procedure Make_3 is new Maker (Rec_3);
procedure Make_4 is new Maker (Rec_4);
procedure Make_5 is new Maker (Rec_5);
procedure Make_6 is new Maker (Rec_6);
begin
Make_1 (5_000);
Make_2 (5_000);
Make_3 (5_000);
Make_4 (5_000);
Make_5 (5_000);
Make_6 (5_000);
end Leaks;
----------------------------
-- Compilation and output --
----------------------------
$ gnatmake -q leaks.adb
$ valgrind ./leaks > leaks.txt 2>&1
$ grep -c "still reachable" leaks.txt
0
2018-01-11 Hristian Kirtchev <kirtchev@adacore.com>
gcc/ada/
* exp_aggr.adb (Convert_Aggr_In_Object_Decl): Update the call to
Establish_Transient_Scope.
(Convert_To_Assignments): Update the call to Establish_Transient_Scope.
(Expand_Array_Aggregate): Update the call to Establish_Transient_Scope.
* exp_ch6.adb (Expand_Call_Helper): Update the call to
Establish_Transient_Scope.
(Make_Build_In_Place_Call_In_Object_Declaration): Update the call to
Establish_Transient_Scope.
* exp_ch7.adb (Establish_Transient_Scope): Restructured. Delegate the
management of the secondary stack to an enclosing scope if there is no
suitable construct to wrap, and the transient scope was intended to
manage the secondary stack.
(Find_Node_To_Be_Wrapped): Restructured. A case_statement_alternative
is a valid boundary for a transient expression which comes from the
statements of the alternative, otherwise alternatives cannot be
wrapped. Assignments of controlled objects which have controlled
actions suppressed now stop the traversal as there is no point in
looking for an enclosing construct. Add several N_xxx_Body choices to
the termination conditions for completeness.
* exp_ch7.ads (Establish_Transient_Scope): Update the parameter profile
and the associated comment on usage.
* exp_smem.adb (Add_Shared_Var_Lock_Procs): Update the call to
Establish_Transient_Scope.
(Add_Write_After): Update the call to Establish_Transient_Scope.
* sem_res.adb (Check_Initialization_Call): Removed.
(Resolve_Actuals): Account for additional cases where finalization
actions are required by utilizing predicate Needs_Finalization rather
than Is_Controlled.
(Resolve_Call): Type initialization procedures can now utilize
transient scopes to manage the secondary stack, thus preventing leaks
during initialization. Remove the previous kludgy algorithm which
attempts to manage the secondary stack at the object creation site.
From-SVN: r256513
Jerome Lambourg [Thu, 11 Jan 2018 08:53:52 +0000 (08:53 +0000)]
[Ada] QNX: various runtime fixes for file I/O, timers, timezone
2018-01-11 Jerome Lambourg <lambourg@adacore.com>
gcc/ada/
* libgnat/g-soliop__qnx.ads: New.
* adaint.c, adaint.h, cstreams.c, s-oscons-tmplt.c, sysdep.c: Update
for QNX.
From-SVN: r256512
Bob Duff [Thu, 11 Jan 2018 08:53:48 +0000 (08:53 +0000)]
[Ada] Null procedures not allowed in protected definitions
The syntax rules do not allow null procedures in protected definitions. This
patch fixes a bug that accidentally allowed them.
2018-01-11 Bob Duff <duff@adacore.com>
gcc/ada/
* par-ch9.adb (P_Protected_Operation_Declaration_Opt): Give an error if
a null procedure occurs in a protected definition.
gcc/testsuite/
* gnat.dg/protected_null.adb: New testcase.
From-SVN: r256511
Bob Duff [Thu, 11 Jan 2018 08:53:36 +0000 (08:53 +0000)]
[Ada] Minor reformatting
2018-01-11 Bob Duff <duff@adacore.com>
gcc/ada/
* binderr.ads, namet.ads: Minor reformatting.
From-SVN: r256510
Bob Duff [Thu, 11 Jan 2018 08:53:32 +0000 (08:53 +0000)]
[Ada] Improve documentation of xml2gnat
2018-01-11 Bob Duff <duff@adacore.com>
gcc/ada/
* doc/gnat_ugn/gnat_utility_programs.rst: Improve documentation of
xml2gnat.
From-SVN: r256509
Bob Duff [Thu, 11 Jan 2018 08:53:27 +0000 (08:53 +0000)]
[Ada] gnatbind -f switch gives an error for duplicates
If the -felab-order.txt switch is given to gnatbind, and there are duplicate
unit names in elab-order.txt, an error will be given.
The following test should get errors:
this (spec) <-- that (body)
error: elab-order.txt:5: duplicate unit name "this (spec)" from line 1
error: elab-order.txt:7: duplicate unit name "that (body)" from line 3
gnatmake: *** bind failed.
Content of elab-order.txt (7 lines):
this%s
that%b
this (spec)
that%b
gnatmake -q -f -g -O0 -gnata that-main.adb -bargs -felab-order.txt
package body That is
end That;
package That is
pragma Elaborate_Body;
end That;
with This, That;
procedure That.Main is
begin
null;
end That.Main;
package body This is
end This;
package This is
pragma Elaborate_Body;
end This;
2018-01-11 Bob Duff <duff@adacore.com>
gcc/ada/
* binde.adb (Force_Elab_Order): Give an error if there are duplicate
unit names.
From-SVN: r256508
Ed Schonberg [Thu, 11 Jan 2018 08:53:15 +0000 (08:53 +0000)]
[Ada] Crash on expression function as completion, with implicit dereference
An implicit dereference freezes the corresponding designated type. Most
implicit dereferences are made explicit during expansion, but this is not the
case for a dispatching call where the the controlling parameter and the
corresponding controlling argument are access to a tagged type. In that case,
to enforce the rule that an expression function that is a completion freezes
type references within, we must locate controlling arguments of an access type
and freeze explicitly the corresponding designated type.
2018-01-11 Ed Schonberg <schonberg@adacore.com>
gcc/ada/
* sem_ch6.adb (Freeze_Expr_Types): If an access value is the
controlling argument of a dispatching call. freeze the corresponding
designated type.
gcc/testsuite/
* gnat.dg/expr_func3.adb, gnat.dg/expr_func3.ads: New testcase.
From-SVN: r256507
Ben Brosgol [Thu, 11 Jan 2018 08:52:59 +0000 (08:52 +0000)]
[Ada] Add Sphinx option -W to treat warnings as errors
2018-01-11 Ben Brosgol <brosgol@adacore.com>
gcc/ada/
* doc/Makefile: Add Sphinx option -W to treat warnings as errors.
From-SVN: r256506
Ben Brosgol [Thu, 11 Jan 2018 08:52:55 +0000 (08:52 +0000)]
[Ada] Minor type/wording corrections
2018-01-11 Ben Brosgol <brosgol@adacore.com>
gcc/ada/
* doc/gnat_rm/implementation_defined_aspects.rst: Minor type/wording
corrections.
* gnat_rm.texi: Regenerate.
From-SVN: r256505
Ed Schonberg [Thu, 11 Jan 2018 08:52:51 +0000 (08:52 +0000)]
[Ada] Warning on use of predefined operations on an actual fixed-point type
The compiler warns when a generic actual is a fixed-point type, because
arithmetic operations in the instance will use the predefined operations on
it, even if the type has user-defined primitive operations (unless formsl
surprograms for these operations appear in the generic). This patch refines
this warning to exclude the case where the formsal type is private, because
in this case there can be no suspicious arithmetic operastions in the generic
unit.
2018-01-11 Ed Schonberg <schonberg@adacore.com>
gcc/ada/
* sem_ch12.adb (Check_Fixed_Point_Type): Do not apply check if the
formsl type corresponding to the actual fixed point type is private,
because in this case there can be no suspicious arithmetic operations
in the generic unless they reference a formal subprogram. Clarify
warning.
gcc/testsuite/
* gnat.dg/fixedpnt2.adb, gnat.dg/fixedpnt2.ads: New testcase.
From-SVN: r256504
Javier Miranda [Thu, 11 Jan 2018 08:52:47 +0000 (08:52 +0000)]
exp_util.adb (Remove_Side_Effects): No action done for functions returning class-wide types since it requires...
2018-01-11 Javier Miranda <miranda@adacore.com>
gcc/ada/
* exp_util.adb (Remove_Side_Effects): No action done for functions
returning class-wide types since it requires generating code using
'reference and the CCG target has no secondary stack.
* gnat1drv.adb: Disable building static dispatch tables when generating
C code.
From-SVN: r256503
Piotr Trojanek [Thu, 11 Jan 2018 08:52:43 +0000 (08:52 +0000)]
[Ada] Annotate standard File_Type with Default_Initial_Condition (for SPARK)
GNATprove was emitting spurious checks about objects of the File_Type being
uninitialized and there was no easy to fix that (those checks could only be
silenced by pragma Annotate or by hiding File_Type behind as SPARK wrapper).
Now the full view of File_Type is annotated with Default_Initial_Condition
and GNATprove knows that objects of that type are default-initialized. The
default initialization is implicitly defined in the Ada RM (as indeed
there is no procedure that would take an IN OUT parameter of that type).
Semantics of Ada programs shall not be affected by these annotations,
so no frontend test is provided. It only affects GNATprove.
2018-01-11 Piotr Trojanek <trojanek@adacore.com>
gcc/ada/
* libgnat/a-direio.ads, libgnat/a-sequio.ads, libgnat/a-ststio.ads,
libgnat/a-textio.ads, libgnat/a-witeio.ads, libgnat/a-ztexio.ads
(File_Type): Add Default_Initial_Condition aspect.
From-SVN: r256502
Pascal Obry [Thu, 11 Jan 2018 08:52:39 +0000 (08:52 +0000)]
[Ada] New implementation for Normalize_Pathname
This implementation fixes an issue on Windows where a single drive letter
was not followed by a directory separator. On Windows the following
program:
with Ada.Text_IO; use Ada.Text_IO;
with GNAT.OS_Lib; use GNAT.OS_Lib;
procedure Main is
begin
Put_Line (Normalize_Pathname ("c:\"));
Put_Line (Normalize_Pathname ("c:\toto\.."));
end Main;
Must output:
C:\
C:\
2018-01-11 Pascal Obry <obry@adacore.com>
gcc/ada/
* libgnat/s-os_lib.adb (Normalize_Pathname): New implementation.
From-SVN: r256501
Bob Duff [Thu, 11 Jan 2018 08:52:20 +0000 (08:52 +0000)]
[Ada] Update gnatpp documentation after engine change
2018-01-11 Bob Duff <duff@adacore.com>
gcc/ada/
* doc/gnat_ugn/gnat_utility_programs.rst: Rewrite gnatpp documentation
to match what the Libadalang-based version does.
* doc/gnat_ugn/about_this_guide.rst: Update reference.
From-SVN: r256500
Hristian Kirtchev [Thu, 11 Jan 2018 08:52:16 +0000 (08:52 +0000)]
[Ada] Secondary stack leak due to controlled component
This pach modifies the expansion related to initialization calls and secondary
stack usage to inspec the components of a type derived from Limited_Controlled
or Controlled. Previously controlled types were treated as never utilizing the
secondary stack, however this is not true because a controlled type may contain
a component initialized by a function which returns on the secondary stack.
------------
-- Source --
------------
-- pack1.ads
with Ada.Finalization; use Ada.Finalization;
package Pack1 is
type Ctrl is new Controlled with record
Comp : Integer;
end record;
function Make_Ctrl return Ctrl;
end Pack1;
-- pack1.adb
package body Pack1 is
Empty : constant Ctrl := (Controlled with Comp => 123);
function Make_Ctrl return Ctrl is
begin
return Empty;
end Make_Ctrl;
end Pack1;
-- pack2.ads
with Ada.Finalization; use Ada.Finalization;
with Pack1; use Pack1;
package Pack2 is
type Ctrl_Wrap is new Controlled with record
Comp : Ctrl := Make_Ctrl;
end record;
end Pack2;
-- main.adb
with Pack2; use Pack2;
procedure Main is
procedure Make_Ctrl_Wrap is
Obj : Ctrl_Wrap;
pragma Warnings (Off, Obj);
begin null; end Make_Ctrl_Wrap;
begin
for Iter in 1 .. 10_000 loop
Make_Ctrl_Wrap;
end loop;
end Main;
----------------------------
-- Compilation and output --
----------------------------
$ gnatmake -q main.adb
$ valgrind ./main >& valgrind.log
$ grep -c "still reachable" valgrind.log
0
2018-01-11 Hristian Kirtchev <kirtchev@adacore.com>
gcc/ada/
* sem_res.adb (Uses_SS): A controlled type requires the secondary stack
if it contains at least one component declaration employing a function
call returning on the secondary stack.
From-SVN: r256499
Yannick Moy [Thu, 11 Jan 2018 08:52:12 +0000 (08:52 +0000)]
[Ada] Update description of restriction SPARK_05 with SPARK 2014
2018-01-11 Yannick Moy <moy@adacore.com>
gcc/ada/
* doc/gnat_rm/standard_and_implementation_defined_restrictions.rst:
Update description of restriction SPARK_05 with SPARK 2014.
* gnat_rm.texi: Regenerate.
From-SVN: r256498
Vasiliy Fofanov [Thu, 11 Jan 2018 08:51:56 +0000 (08:51 +0000)]
[Ada] Minor layout fix in documentation sources
2018-01-11 Vasiliy Fofanov <fofanov@adacore.com>
gcc/ada/
* doc/gnat_ugn/gnat_utility_programs.rst: Fix layout.
From-SVN: r256497
Hristian Kirtchev [Thu, 11 Jan 2018 08:51:51 +0000 (08:51 +0000)]
[Ada] Minor reformatting
2018-01-11 Hristian Kirtchev <kirtchev@adacore.com>
gcc/ada/
* exp_aggr.adb, exp_ch9.adb, exp_util.adb, sem_aggr.adb, sem_ch3.adb,
sem_res.adb, sem_util.adb: Minor reformatting.
From-SVN: r256496
Ed Schonberg [Thu, 11 Jan 2018 08:51:47 +0000 (08:51 +0000)]
[Ada] Handling of pragma Predicate
This patch fixes an omission in the processing of pragma Predicate, which
should have the same semantics as the corresponding aspect, which is more
commonly used.
Executing
gnatmake -q -gnata predicate
predicate
must yield:
Even1 violated
Even2 violated
----
with Text_IO; use Text_IO;
procedure Predicate is
begin
begin
declare
subtype Even1 is Integer;
pragma Predicate (Even1, Even1 mod 2 = 0);
X1 : constant Even1 := 1; -- This should fail first
begin
null;
end;
exception
when Others => Put_Line ("Even1 violated");
end;
begin
declare
subtype Even2 is Integer with Predicate => Even2 mod 2 = 0;
X2 : constant Even2 := 1; -- This should fail later, if reached
begin
null;
end;
exception
when Others => Put_Line ("Even2 violated");
end;
end;
2018-01-11 Ed Schonberg <schonberg@adacore.com>
gcc/ada/
* sem_prag.adb (Analyze_Pragma, case Predicate): Indicate that the type
has a delayed aspect which must be processed at the point the type is
frozen. This mimics what is done when the predicate is provided by a
source aspect.
From-SVN: r256495
Doug Rupp [Thu, 11 Jan 2018 08:51:43 +0000 (08:51 +0000)]
[Ada] Enable sigtramp for aarch64-vx7
2018-01-11 Doug Rupp <rupp@adacore.com>
gcc/ada/
* init.c (vxworks): Add macro checks for __aarch64__.
From-SVN: r256494
Hristian Kirtchev [Thu, 11 Jan 2018 08:51:39 +0000 (08:51 +0000)]
[Ada] Different runtime behavior of Predicate_Failure
This patch corrects the generation of predicate checks to handle the case where
Predicate_Failure appears as a pragma.
------------
-- Source --
------------
-- main.adb
with Ada.Assertions; use Ada.Assertions;
with Ada.Exceptions; use Ada.Exceptions;
with Ada.Text_IO; use Ada.Text_IO;
procedure Main is
subtype Even_Asp is Integer
with Predicate => Even_Asp mod 2 = 0,
Predicate_Failure => "Even_Asp failed";
subtype Even_Prag is Integer
with Predicate => Even_Prag mod 2 = 0;
pragma Predicate_Failure (Even_Prag, "Even_Prag failed");
begin
begin
declare
Val : constant Even_Asp := 1;
begin
Put_Line ("ERROR: Even_Asp: did not fail");
end;
exception
when AE : Assertion_Error => Put_Line (Exception_Message (AE));
when others => Put_Line ("ERROR: Even_Asp: raised unexpected error");
end;
begin
declare
Val : constant Even_Prag := 3;
begin
Put_Line ("ERROR: Even_Prag: did not fail");
end;
exception
when AE : Assertion_Error => Put_Line (Exception_Message (AE));
when others => Put_Line ("ERROR: Even_Prag: raised unexpected error");
end;
end Main;
----------------------------
-- Compilation and output --
----------------------------
$ gnatmake -q main.adb
$ ./main
Even_Asp failed
Even_Prag failed
2018-01-11 Hristian Kirtchev <kirtchev@adacore.com>
gcc/ada/
* exp_util.adb (Add_Failure_Expression): New routine.
(Make_Predicate_Check): Reimplement the handling of Predicate_Failure.
* sem_util.adb (Is_Current_Instance): Code cleanup.
From-SVN: r256493
Patrick Bernardi [Thu, 11 Jan 2018 08:51:23 +0000 (08:51 +0000)]
[Ada] Integer overflow in SS_Allocate
This patch imposes a new check and rewrites existing ones to ensure operations
involving SS_Ptr do not cause an Integer overflow. The Default_Sec_Stack_Size
function was removed in the process to simplify System.Parameter.
SS_Ptr was derived from the integer System.Parameters.Size_Type to ease the
creation of objects of type SS_Stack by the binder and imposes a maximum
secondary stack size of 2GB. In most cases, the user will not hit this limit as
they cannot specify task stack sizes of more than 2GB via the Storage_Size and
Secondary_Stack_Size pragmas. Additionally, most operating systems limit the
primary stack size to less than 2GB, with defaults under 10MB. Linux is the
rare exception where the user can unbound the primary stack.
Executing the following:
gnatmake -q overflow
./overflow
must yield:
raised STORAGE_ERROR : s-secsta.adb:140 explicit raise
-- overflow.adb:
with String_Pack;
procedure Overflow is
begin
null;
end Overflow;
-- string_pack.ads:
package String_Pack is
function Return_Big_String return String;
end String_Pack;
-- string_pack.adb:
with Ada.Strings.Fixed; use Ada.Strings.Fixed;
package body String_Pack is
function Return_Big_String return String is
begin
return Integer'Last * "P";
end Return_Big_String;
S : String := Return_Big_String;
end String_Pack;
2018-01-11 Patrick Bernardi <bernardi@adacore.com>
gcc/ada/
* libgnat/s-parame*.adb, libgnat/s-parame*.ads: Remove unneeded
Default_Sec_Stack_Size.
* libgnat/s-secsta.adb (SS_Allocate): Handle the fixed secondary stack
limit check so that the integer index does not overflow. Check the
dynamic stack allocation does not cause the secondary stack pointer to
overflow.
(SS_Info): Align colons.
(SS_Init): Cover the case when bootstraping with an old compiler that
does not set Default_SS_Size.
From-SVN: r256492
Ed Schonberg [Thu, 11 Jan 2018 08:51:18 +0000 (08:51 +0000)]
[Ada] Illegal protected calls in inherited pre/postconditions
AI12-0166 specifies that it is illegal for a pre/postcondition of a
protected operation to contain an internal call to a protected function.
This patch completes the implementation of this rule in the case the
condition is inherited from a classwide condition of an abstract operation
of an interface type.
Compiling inheritpo.adb must yield:
inheritpo.ads:9:04: instantiation error at line 6
inheritpo.ads:9:04: internal call to "F" cannot appear
in inherited precondition of protected operation "P"
inheritpo.ads:9:04: instantiation error at line 7
inheritpo.ads:9:04: internal call to "F" cannot appear
in inherited precondition of protected operation "P"
--
package InheritPO is
type T is limited interface;
function F (X : T) return Boolean is abstract;
procedure P (X : in out T) is abstract with
Pre'Class => X.F,
Post'Class => X.F;
protected type PT is new T with
overriding function F return Boolean;
overriding procedure P;
end PT;
end InheritPO;
----
package body InheritPO is
protected body PT is
function F return Boolean is begin return True; end;
procedure P is begin null; end;
end PT;
end InheritPO;
2018-01-11 Ed Schonberg <schonberg@adacore.com>
gcc/ada/
* sem_ch3.adb (Add_Internal_Interface_Entities): When checking the
legality of an inherited operation that may require overriding, ignore
primitive_wrappers that correspond to explicit operations that override
an interface primitive.
* exp_util.adb (Build_Class_Wide_Expression, Replace_Entity): If the
operation to which the class-wide expression applies is a protected op.
with a primitive_wrapper, verify that the updated inherited expression
does not contain an internal call to a protected function. This
completes the implementation of AI12-0166.
From-SVN: r256491
Hristian Kirtchev [Thu, 11 Jan 2018 08:51:13 +0000 (08:51 +0000)]
[Ada] Encoding of with clauses in ALI files
This patch modifies the encodings of with clauses in ALI files to adhere to the
existing API. The encodigs are as follows:
* Explicit with clauses are encoded on a 'W' line (same as before).
* Implicit with clauses for ancestor units are encoded on a 'W' line (same
as before).
* Limited_with clauses are encoded on a 'Y' line (same as before).
* ABE and RTSfind-related with clauses are encoded on a 'Z' line.
------------
-- Source --
------------
-- case_10_func.adb
function Case_10_Func return Boolean is
begin
return True;
end Case_10_Func;
-- case_10_gen_func.ads
generic
function Case_10_Gen_Func return Boolean;
-- case_10_gen_func.adb
function Case_10_Gen_Func return Boolean is
begin
return True;
end Case_10_Gen_Func;
-- case_10_tasks.ads
package Case_10_Tasks is
task type Task_Typ is
end Task_Typ;
end Case_10_Tasks;
-- case_10_tasks.adb
package body Case_10_Tasks is
task body Task_Typ is begin null; end Task_Typ;
end Case_10_Tasks;
-- case_10_gen.ads
with Case_10_Func;
with Case_10_Gen_Func;
with Case_10_Tasks;
generic
package Case_10_Gen is
Val : constant Boolean := Case_10_Func;
function Inst is new Case_10_Gen_Func;
Tsk : Case_10_Tasks.Task_Typ;
end Case_10_Gen;
-- case_10.ads
with Case_10_Gen;
package Case_10 is
package Inst is new Case_10_Gen;
end Case_10;
----------------------------
-- Compilation and output --
----------------------------
$ gcc -c case_10.ads
$ grep "W " case_10.ali | sort
$ grep "Z " case_10.ali | sort
W case_10_gen%s case_10_gen.ads case_10_gen.ali
Z case_10_func%b case_10_func.adb case_10_func.ali
Z case_10_gen_func%s case_10_gen_func.adb case_10_gen_func.ali ED
Z case_10_tasks%s case_10_tasks.adb case_10_tasks.ali AD
Z system.soft_links%s s-soflin.adb s-soflin.ali
Z system.tasking%s s-taskin.adb s-taskin.ali
Z system.tasking.stages%s s-tassta.adb s-tassta.ali
2018-01-11 Hristian Kirtchev <kirtchev@adacore.com>
gcc/ada/
* ali.adb: Document the remaining letters available for ALI lines.
(Scan_ALI): A with clause is internal when it is encoded on a 'Z' line.
* ali.ads: Update type With_Record. Field
Implicit_With_From_Instantiation is no longer in use. Add field
Implicit_With.
* csinfo.adb (CSinfo): Remove the setup for attribute
Implicit_With_From_Instantiation.
* lib-writ.adb (Collect_Withs): Correct the logic which marks a unit as
either implicitly or explicitly withed.
(Is_Implicit_With_Clause): New routine.
(Write_ALI): Rename array Implicit_With to Has_Implicit_With to avoid
confusion with the with clause attribute by the same name.
(Write_With_Lines): Update the emission of 'W', 'Y', and 'Z' headers.
* rtsfind.adb (Maybe_Add_With): Code cleanup.
* sem_ch8.adb (Present_System_Aux): Code cleanup.
* sem_ch10.adb (Expand_With_Clause): Mark the with clause as generated
for a parent unit.
(Implicit_With_On_Parent): Mark the with clause as generated for a
parent unit.
* sem_ch12.adb (Inherit_Context): With clauses inherited by an
instantiation are no longer marked as Implicit_With_From_Instantiation
because they are already marked as implicit.
* sem_elab.adb (Ensure_Prior_Elaboration_Static): Remove the kludge
which marks implicit with clauses as related to an instantiation.
* sinfo.adb (Implicit_With_From_Instantiation): Removed.
(Parent_With): New routine.
(Set_Implicit_With_From_Instantiation): Removed.
(Set_Parent_With): New routine.
* sinfo.ads: Update the documentation of attribute Implicit_With.
Remove attribute Implicit_With_From_Instantiation along with
occurrences in nodes. Add attribute Parent_With along with occurrences
in nodes.
(Implicit_With_From_Instantiation): Removed along with pragma Inline.
(Parent_With): New routine along with pragma Inline.
(Set_Implicit_With_From_Instantiation): Removed along with pragma Inline.
(Set_Parent_With): New routine along with pragma Inline.
From-SVN: r256490
Hristian Kirtchev [Thu, 11 Jan 2018 08:51:09 +0000 (08:51 +0000)]
[Ada] Finding proper scope when inside entry body
This patch modifies routine Find_Enclosing_Scope which obtains the scope of an
arbitrary node to return the unique defining entity of an enclosing body. This
automatically takes care of the following corner cases:
* The body is a subprogram body which does not complete a previous
declaration. In this case the proper scope is the entity of the
body.
* The body is an entry body. Due to a limitation in the AST, the
entry body does not store its correcponsing spec, but utilizes a
roundabout way of obtaining it. Regardless of the limitation, the
proper scope is the entity of the entry declaration.
The issue was discovered during the development of the GNATprove tool and
is not visible to end users. No simple test is available because this would
require a debug session.
2018-01-11 Hristian Kirtchev <kirtchev@adacore.com>
gcc/ada/
* sem_util.adb (Find_Enclosing_Scope): Return the unique defining
entity when the enclosing construct is a body.
From-SVN: r256489
Patrick Bernardi [Thu, 11 Jan 2018 08:50:43 +0000 (08:50 +0000)]
[Ada] Aspect/pragma Secondary_Stack_Size can evaluate non-literals as zero
This patch fixes the problem of aspect/pragma Secondary_Stack_Size expressions
with non-literals evaluating as zero in static secondary stacks allocations.
The aspect Secondary_Stack_Size is now converted to a pragma instead of an
attribute as the attribute does not have visibility on the discriminant.
Additionally, the discriminant of the corresponding record type is now
referenced if the pragma expression contains a discriminant.
No simple test available as the problem only impacts programs when
System.Parameters.Sec_Stack_Dynamic = False
2018-01-11 Patrick Bernardi <bernardi@adacore.com>
gcc/ada/
* exp_ch9.adb (Expand_N_Task_Type_Declaration): Simplified
Secondary_Stack_Size handling as a pragma is now generated for the
corresponding aspect instead of an attribute. Pragma expression is
relocated instead of evaluated. Discriminant of the corresponding
record type is referenced rather than the type discriminant.
(Create_Secondary_Stack_For_Task, Make_Task_Create_Call): Update
Secondary_Stack_Size rep item checks to only look for the pragma rep.
* sem_ch13.adb (Analyze_One_Aspect): Transform
Aspect_Secondary_Stack_Size into a pragma instead of an attribute
because the attribute does not have visibility on a task type's
discriminants when the type's definition is expanded.
(Analyze_Attribute_Definition_Clause): Remove handling of
Attribute_Secondary_Stack_Size.
* snames.adb-tmpl, snames.ads-tmpl: Remove
Attribute_Secondary_Stack_Size, no longer used.
From-SVN: r256488
Justin Squirek [Thu, 11 Jan 2018 08:50:38 +0000 (08:50 +0000)]
[Ada] Minor reformatting
2018-01-11 Justin Squirek <squirek@adacore.com>
gcc/ada/
* sem_ch8.adb: Minor comment fix.
From-SVN: r256487
Hristian Kirtchev [Thu, 11 Jan 2018 08:50:34 +0000 (08:50 +0000)]
[Ada] Missing finalization in case expression
This patch modifies the processing of controlled transient objects within case
expressions represented by an Expression_With_Actions node. The inspection of
an individual action must continue in case it denotes a complex expression,
such as a case statement, which in turn may contain additional transients.
------------
-- Source --
------------
-- pack.ads
with Ada.Finalization; use Ada.Finalization;
package Pack is
function Next_Id return Natural;
type Ctrl is new Controlled with record
Id : Natural := 0;
end record;
procedure Adjust (Obj : in out Ctrl);
procedure Finalize (Obj : in out Ctrl);
procedure Initialize (Obj : in out Ctrl);
function New_Ctrl return Ctrl;
Empty : constant Ctrl := (Controlled with Id => 1);
type Enum is (One, Two, Three);
type Ctrl_Rec is record
Comp : Ctrl;
Kind : Enum;
end record;
procedure Proc (Obj : Ctrl_Rec);
end Pack;
-- pack.adb
with Ada.Text_IO; use Ada.Text_IO;
package body Pack is
Id_Gen : Natural := 1;
procedure Adjust (Obj : in out Ctrl) is
Old_Id : constant Natural := Obj.Id;
New_Id : Natural;
begin
if Old_Id = 0 then
Put_Line (" adj: ERROR already finalized");
else
New_Id := Old_Id * 100;
Put_Line (" adj: " & Old_Id'Img & " ->" & New_Id'Img);
Obj.Id := New_Id;
end if;
end Adjust;
procedure Finalize (Obj : in out Ctrl) is
Old_Id : constant Natural := Obj.Id;
begin
if Old_Id = 0 then
Put_Line (" fin: ERROR already finalized");
else
Put_Line (" fin: " & Old_Id'Img);
Obj.Id := 0;
end if;
end Finalize;
procedure Initialize (Obj : in out Ctrl) is
New_Id : constant Natural := Next_Id;
begin
Put_Line (" ini: " & New_Id'Img);
Obj.Id := New_Id;
end Initialize;
procedure Proc (Obj : Ctrl_Rec) is
begin
Put_Line ("proc : " & Obj.Comp.Id'Img);
end Proc;
function Next_Id return Natural is
begin
Id_Gen := Id_Gen + 1;
return Id_Gen;
end Next_Id;
function New_Ctrl return Ctrl is
Obj : Ctrl;
begin
return Obj;
end New_Ctrl;
end Pack;
-- main.adb
with Ada.Text_IO; use Ada.Text_IO;
with Pack; use Pack;
procedure Main is
procedure Proc_Case_Expr (Mode : Enum) is
begin
Put_Line ("proc_case_expr: " & Mode'Img);
Proc (case Mode is
when One => (Kind => Two, Comp => Empty),
when Two => (Kind => Three, Comp => Empty),
when Three => (Kind => One, Comp => New_Ctrl));
end Proc_Case_Expr;
procedure Proc_If_Expr (Mode : Enum) is
begin
Put_Line ("proc_if_expr: " & Mode'Img);
Proc ((if Mode = One then (Kind => Two, Comp => Empty)
elsif Mode = Two then (Kind => Three, Comp => Empty)
else (Kind => One, Comp => New_Ctrl)));
end Proc_If_Expr;
begin
Proc_Case_Expr (One);
Proc_Case_Expr (Two);
Proc_Case_Expr (Three);
Proc_If_Expr (One);
Proc_If_Expr (Two);
Proc_If_Expr (Three);
end Main;
----------------------------
-- Compilation and output --
----------------------------
$ gnatmake -q main.adb
$ ./main
proc_case_expr: ONE
adj: 1 -> 100
proc : 100
fin: 100
proc_case_expr: TWO
adj: 1 -> 100
proc : 100
fin: 100
proc_case_expr: THREE
ini: 2
adj: 2 -> 200
fin: 2
adj: 200 -> 20000
proc : 20000
fin: 20000
fin: 200
proc_if_expr: ONE
adj: 1 -> 100
proc : 100
fin: 100
proc_if_expr: TWO
adj: 1 -> 100
proc : 100
fin: 100
proc_if_expr: THREE
ini: 3
adj: 3 -> 300
fin: 3
adj: 300 -> 30000
proc : 30000
fin: 30000
fin: 300
fin: 1
2018-01-11 Hristian Kirtchev <kirtchev@adacore.com>
gcc/ada/
* exp_ch4.adb (Process_Action): Do not abandon the inspection of an
individual action because the action may denote a complex expression,
such as a case statement, which in turn may contain additional
transient objects.
From-SVN: r256486
Ed Schonberg [Thu, 11 Jan 2018 08:50:29 +0000 (08:50 +0000)]
[Ada] Crash on iterated_component_association in expression function
This patch improves on the handling of the
Ada2020 construct Iterated_
Component_Association in various contexts, when the expression involved
is a record or array aggregate.
Executing:
gnatmake -gnatX -q main
./main
must yield:
123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ
----
with Text_IO; use Text_IO;
with Exfor; use Exfor;
procedure Main is
Map : String := Table_ASCII;
begin
Put_Line (Map (50..91));
end;
----
package Exfor is
function Table_ASCII return String is
(for I in 1 .. Character'Pos (Character'Last) + 1 => Character'Val(I-1));
end Exfor;
2018-01-11 Ed Schonberg <schonberg@adacore.com>
gcc/ada/
* sem_aggr.adb (Resolve_Iterated_Component_Association): Perform
analysis on a copy of the expression with a copy of the index variable,
because full expansion will rewrite construct into a loop with the
original loop variable.
* exp_aggr.adb (Gen_Assign): Defer analysis and resolution if the
expression is an iterated component association. Full analysis takes
place when construct is rewritten as a loop.
(In_Place_Assign_OK, Safe_Component): An iterated_component_association
is not safe for in-place assignment.
* sem_util.adb (Remove_Entity): Handle properly the case of an isolated
entity with no homonym and no other entity in the scope.
From-SVN: r256485
Justin Squirek [Thu, 11 Jan 2018 08:50:25 +0000 (08:50 +0000)]
[Ada] Wrong column in sloc of "expect name" error for loop variant
This patch corrects error messages printed when using the pragma Loop_Variant
without a named argument from having an incorrect column number in some cases.
2018-01-11 Justin Squirek <squirek@adacore.com>
gcc/ada/
* sem_prag.adb (Analyze_Pragma:Pragma_Loop_Variant): Modify error
message to be printed on the pragma argument identifier.
gcc/testsuite/
* gnat.dg/loopvar.adb: New testcase.
From-SVN: r256484
Hristian Kirtchev [Thu, 11 Jan 2018 08:50:18 +0000 (08:50 +0000)]
[Ada] Inconsistent scope chain due to quantified expression
This patch corrects the minor decoration performed on invariant procedures in
case the procedure is not inserted into the tree and analyzed. The decoration
now constructs a proper first/next/last entity chain containing the single
formal parameter which represents the object of the related type. The chain
then ensures that any other entities generated by the [pre]analysis of the
invariant expression will be properly added to the chain.
The issue was discovered during the development of the GNATprove tool and
is not visible to end users. No simple test is available because this would
require a debug session.
2018-01-11 Hristian Kirtchev <kirtchev@adacore.com>
gcc/ada/
* exp_util.adb (Build_Invariant_Procedure_Declaration): Set the last
entity of the generated invariant procedure in order to construct a
proper entity chain.
From-SVN: r256483
Piotr Trojanek [Thu, 11 Jan 2018 08:50:12 +0000 (08:50 +0000)]
[Ada] Fix minor comment issues
2018-01-11 Piotr Trojanek <trojanek@adacore.com>
gcc/ada/
* sem_ch13.adb (Build_Predicate_Functions): Fix minor issues in
comment.
From-SVN: r256482
Arnaud Charlet [Thu, 11 Jan 2018 08:50:08 +0000 (08:50 +0000)]
einfo.ads, einfo.adb (Activation_Record_Component, [...]): Allow E_Discriminant.
2018-01-11 Arnaud Charlet <charlet@adacore.com>
gcc/ada/
* einfo.ads, einfo.adb (Activation_Record_Component,
Set_Activation_Record_Component, Set_Is_Uplevel_Referenced_Entity):
Allow E_Discriminant.
From-SVN: r256481
Jan Hubicka [Thu, 11 Jan 2018 08:14:33 +0000 (09:14 +0100)]
re PR tree-optimization/83189 (internal compiler error: in probability_in, at profile-count.h:1050)
PR middle-end/83189
* gfortran.fortran-torture/compile/pr83189.f90: New testcase.
* tree-ssa-loop-manip.c (tree_transform_and_unroll_loop): Handle zero
profile.
From-SVN: r256480
Jan Hubicka [Thu, 11 Jan 2018 08:02:26 +0000 (09:02 +0100)]
re PR rtl-optimization/83575 (ICE: verify_flow_info failed (error: multiple hot/cold transitions found))
PR middle-end/83575
* cfgrtl.c (rtl_verify_edges): Only verify fixability of partition
when in layout mode.
(cfg_layout_finalize): Do not verify cfg before we are out of layout.
* cfgcleanup.c (try_optimize_cfg): Only verify flow info when doing
partition fixup.
* gcc.c-torture/compile/pr83575.c: New testcase.
From-SVN: r256479
Michael Collison [Thu, 11 Jan 2018 06:04:17 +0000 (06:04 +0000)]
aarch64-modes.def (V2HF): New VECTOR_MODE.
2018-01-10 Michael Collison <michael.collison@arm.com>
* config/aarch64/aarch64-modes.def (V2HF): New VECTOR_MODE.
* config/aarch64/aarch64-option-extension.def: Add
AARCH64_OPT_EXTENSION of 'fp16fml'.
* config/aarch64/aarch64-c.c (aarch64_update_cpp_builtins):
(__ARM_FEATURE_FP16_FML): Define if TARGET_F16FML is true.
* config/aarch64/predicates.md (aarch64_lane_imm3): New predicate.
* config/aarch64/constraints.md (Ui7): New constraint.
* config/aarch64/iterators.md (VFMLA_W): New mode iterator.
(VFMLA_SEL_W): Ditto.
(f16quad): Ditto.
(f16mac1): Ditto.
(VFMLA16_LOW): New int iterator.
(VFMLA16_HIGH): Ditto.
(UNSPEC_FMLAL): New unspec.
(UNSPEC_FMLSL): Ditto.
(UNSPEC_FMLAL2): Ditto.
(UNSPEC_FMLSL2): Ditto.
(f16mac): New code attribute.
* config/aarch64/aarch64-simd-builtins.def
(aarch64_fmlal_lowv2sf): Ditto.
(aarch64_fmlsl_lowv2sf): Ditto.
(aarch64_fmlalq_lowv4sf): Ditto.
(aarch64_fmlslq_lowv4sf): Ditto.
(aarch64_fmlal_highv2sf): Ditto.
(aarch64_fmlsl_highv2sf): Ditto.
(aarch64_fmlalq_highv4sf): Ditto.
(aarch64_fmlslq_highv4sf): Ditto.
(aarch64_fmlal_lane_lowv2sf): Ditto.
(aarch64_fmlsl_lane_lowv2sf): Ditto.
(aarch64_fmlal_laneq_lowv2sf): Ditto.
(aarch64_fmlsl_laneq_lowv2sf): Ditto.
(aarch64_fmlalq_lane_lowv4sf): Ditto.
(aarch64_fmlsl_lane_lowv4sf): Ditto.
(aarch64_fmlalq_laneq_lowv4sf): Ditto.
(aarch64_fmlsl_laneq_lowv4sf): Ditto.
(aarch64_fmlal_lane_highv2sf): Ditto.
(aarch64_fmlsl_lane_highv2sf): Ditto.
(aarch64_fmlal_laneq_highv2sf): Ditto.
(aarch64_fmlsl_laneq_highv2sf): Ditto.
(aarch64_fmlalq_lane_highv4sf): Ditto.
(aarch64_fmlsl_lane_highv4sf): Ditto.
(aarch64_fmlalq_laneq_highv4sf): Ditto.
(aarch64_fmlsl_laneq_highv4sf): Ditto.
* config/aarch64/aarch64-simd.md:
(aarch64_fml<f16mac1>l<f16quad>_low<mode>): New pattern.
(aarch64_fml<f16mac1>l<f16quad>_high<mode>): Ditto.
(aarch64_simd_fml<f16mac1>l<f16quad>_low<mode>): Ditto.
(aarch64_simd_fml<f16mac1>l<f16quad>_high<mode>): Ditto.
(aarch64_fml<f16mac1>l_lane_lowv2sf): Ditto.
(aarch64_fml<f16mac1>l_lane_highv2sf): Ditto.
(aarch64_simd_fml<f16mac>l_lane_lowv2sf): Ditto.
(aarch64_simd_fml<f16mac>l_lane_highv2sf): Ditto.
(aarch64_fml<f16mac1>lq_laneq_lowv4sf): Ditto.
(aarch64_fml<f16mac1>lq_laneq_highv4sf): Ditto.
(aarch64_simd_fml<f16mac>lq_laneq_lowv4sf): Ditto.
(aarch64_simd_fml<f16mac>lq_laneq_highv4sf): Ditto.
(aarch64_fml<f16mac1>l_laneq_lowv2sf): Ditto.
(aarch64_fml<f16mac1>l_laneq_highv2sf): Ditto.
(aarch64_simd_fml<f16mac>l_laneq_lowv2sf): Ditto.
(aarch64_simd_fml<f16mac>l_laneq_highv2sf): Ditto.
(aarch64_fml<f16mac1>lq_lane_lowv4sf): Ditto.
(aarch64_fml<f16mac1>lq_lane_highv4sf): Ditto.
(aarch64_simd_fml<f16mac>lq_lane_lowv4sf): Ditto.
(aarch64_simd_fml<f16mac>lq_lane_highv4sf): Ditto.
* config/aarch64/arm_neon.h (vfmlal_low_u32): New intrinsic.
(vfmlsl_low_u32): Ditto.
(vfmlalq_low_u32): Ditto.
(vfmlslq_low_u32): Ditto.
(vfmlal_high_u32): Ditto.
(vfmlsl_high_u32): Ditto.
(vfmlalq_high_u32): Ditto.
(vfmlslq_high_u32): Ditto.
(vfmlal_lane_low_u32): Ditto.
(vfmlsl_lane_low_u32): Ditto.
(vfmlal_laneq_low_u32): Ditto.
(vfmlsl_laneq_low_u32): Ditto.
(vfmlalq_lane_low_u32): Ditto.
(vfmlslq_lane_low_u32): Ditto.
(vfmlalq_laneq_low_u32): Ditto.
(vfmlslq_laneq_low_u32): Ditto.
(vfmlal_lane_high_u32): Ditto.
(vfmlsl_lane_high_u32): Ditto.
(vfmlal_laneq_high_u32): Ditto.
(vfmlsl_laneq_high_u32): Ditto.
(vfmlalq_lane_high_u32): Ditto.
(vfmlslq_lane_high_u32): Ditto.
(vfmlalq_laneq_high_u32): Ditto.
(vfmlslq_laneq_high_u32): Ditto.
* config/aarch64/aarch64.h (AARCH64_FL_F16SML): New flag.
(AARCH64_FL_FOR_ARCH8_4): New.
(AARCH64_ISA_F16FML): New ISA flag.
(TARGET_F16FML): New feature flag for fp16fml.
(doc/invoke.texi): Document new fp16fml option.
2018-01-10 Michael Collison <michael.collison@arm.com>
* config/aarch64/aarch64-builtins.c:
(aarch64_types_ternopu_imm_qualifiers, TYPES_TERNOPUI): New.
* config/aarch64/aarch64-c.c (aarch64_update_cpp_builtins):
(__ARM_FEATURE_SHA3): Define if TARGET_SHA3 is true.
* config/aarch64/aarch64.h (AARCH64_FL_SHA3): New flags.
(AARCH64_ISA_SHA3): New ISA flag.
(TARGET_SHA3): New feature flag for sha3.
* config/aarch64/iterators.md (sha512_op): New int attribute.
(CRYPTO_SHA512): New int iterator.
(UNSPEC_SHA512H): New unspec.
(UNSPEC_SHA512H2): Ditto.
(UNSPEC_SHA512SU0): Ditto.
(UNSPEC_SHA512SU1): Ditto.
* config/aarch64/aarch64-simd-builtins.def
(aarch64_crypto_sha512hqv2di): New builtin.
(aarch64_crypto_sha512h2qv2di): Ditto.
(aarch64_crypto_sha512su0qv2di): Ditto.
(aarch64_crypto_sha512su1qv2di): Ditto.
(aarch64_eor3qv8hi): Ditto.
(aarch64_rax1qv2di): Ditto.
(aarch64_xarqv2di): Ditto.
(aarch64_bcaxqv8hi): Ditto.
* config/aarch64/aarch64-simd.md:
(aarch64_crypto_sha512h<sha512_op>qv2di): New pattern.
(aarch64_crypto_sha512su0qv2di): Ditto.
(aarch64_crypto_sha512su1qv2di): Ditto.
(aarch64_eor3qv8hi): Ditto.
(aarch64_rax1qv2di): Ditto.
(aarch64_xarqv2di): Ditto.
(aarch64_bcaxqv8hi): Ditto.
* config/aarch64/arm_neon.h (vsha512hq_u64): New intrinsic.
(vsha512h2q_u64): Ditto.
(vsha512su0q_u64): Ditto.
(vsha512su1q_u64): Ditto.
(veor3q_u16): Ditto.
(vrax1q_u64): Ditto.
(vxarq_u64): Ditto.
(vbcaxq_u16): Ditto.
* config/arm/types.md (crypto_sha512): New type attribute.
(crypto_sha3): Ditto.
(doc/invoke.texi): Document new sha3 option.
2018-01-10 Michael Collison <michael.collison@arm.com>
* config/aarch64/aarch64-builtins.c:
(aarch64_types_quadopu_imm_qualifiers, TYPES_QUADOPUI): New.
* config/aarch64/aarch64-c.c (aarch64_update_cpp_builtins):
(__ARM_FEATURE_SM3): Define if TARGET_SM4 is true.
(__ARM_FEATURE_SM4): Define if TARGET_SM4 is true.
* config/aarch64/aarch64.h (AARCH64_FL_SM4): New flags.
(AARCH64_ISA_SM4): New ISA flag.
(TARGET_SM4): New feature flag for sm4.
* config/aarch64/aarch64-simd-builtins.def
(aarch64_sm3ss1qv4si): Ditto.
(aarch64_sm3tt1aq4si): Ditto.
(aarch64_sm3tt1bq4si): Ditto.
(aarch64_sm3tt2aq4si): Ditto.
(aarch64_sm3tt2bq4si): Ditto.
(aarch64_sm3partw1qv4si): Ditto.
(aarch64_sm3partw2qv4si): Ditto.
(aarch64_sm4eqv4si): Ditto.
(aarch64_sm4ekeyqv4si): Ditto.
* config/aarch64/aarch64-simd.md:
(aarch64_sm3ss1qv4si): Ditto.
(aarch64_sm3tt<sm3tt_op>qv4si): Ditto.
(aarch64_sm3partw<sm3part_op>qv4si): Ditto.
(aarch64_sm4eqv4si): Ditto.
(aarch64_sm4ekeyqv4si): Ditto.
* config/aarch64/iterators.md (sm3tt_op): New int iterator.
(sm3part_op): Ditto.
(CRYPTO_SM3TT): Ditto.
(CRYPTO_SM3PART): Ditto.
(UNSPEC_SM3SS1): New unspec.
(UNSPEC_SM3TT1A): Ditto.
(UNSPEC_SM3TT1B): Ditto.
(UNSPEC_SM3TT2A): Ditto.
(UNSPEC_SM3TT2B): Ditto.
(UNSPEC_SM3PARTW1): Ditto.
(UNSPEC_SM3PARTW2): Ditto.
(UNSPEC_SM4E): Ditto.
(UNSPEC_SM4EKEY): Ditto.
* config/aarch64/constraints.md (Ui2): New constraint.
* config/aarch64/predicates.md (aarch64_imm2): New predicate.
* config/arm/types.md (crypto_sm3): New type attribute.
(crypto_sm4): Ditto.
* config/aarch64/arm_neon.h (vsm3ss1q_u32): New intrinsic.
(vsm3tt1aq_u32): Ditto.
(vsm3tt1bq_u32): Ditto.
(vsm3tt2aq_u32): Ditto.
(vsm3tt2bq_u32): Ditto.
(vsm3partw1q_u32): Ditto.
(vsm3partw2q_u32): Ditto.
(vsm4eq_u32): Ditto.
(vsm4ekeyq_u32): Ditto.
(doc/invoke.texi): Document new sm4 option.
2018-01-10 Michael Collison <michael.collison@arm.com>
* config/aarch64/aarch64-arches.def (armv8.4-a): New architecture.
* config/aarch64/aarch64.h (AARCH64_ISA_V8_4): New ISA flag.
(AARCH64_FL_FOR_ARCH8_4): New.
(AARCH64_FL_V8_4): New flag.
(doc/invoke.texi): Document new armv8.4-a option.
2018-01-10 Michael Collison <michael.collison@arm.com>
* config/aarch64/aarch64-c.c (aarch64_update_cpp_builtins):
(__ARM_FEATURE_AES): Define if TARGET_AES is true.
(__ARM_FEATURE_SHA2): Define if TARGET_SHA2 is true.
* config/aarch64/aarch64-option-extension.def: Add
AARCH64_OPT_EXTENSION of 'sha2'.
(aes): Add AARCH64_OPT_EXTENSION of 'aes'.
(crypto): Disable sha2 and aes if crypto disabled.
(crypto): Enable aes and sha2 if enabled.
(simd): Disable sha2 and aes if simd disabled.
* config/aarch64/aarch64.h (AARCH64_FL_AES, AARCH64_FL_SHA2):
New flags.
(AARCH64_ISA_AES, AARCH64_ISA_SHA2): New ISA flags.
(TARGET_SHA2): New feature flag for sha2.
(TARGET_AES): New feature flag for aes.
* config/aarch64/aarch64-simd.md:
(aarch64_crypto_aes<aes_op>v16qi): Make pattern
conditional on TARGET_AES.
(aarch64_crypto_aes<aesmc_op>v16qi): Ditto.
(aarch64_crypto_sha1hsi): Make pattern conditional
on TARGET_SHA2.
(aarch64_crypto_sha1hv4si): Ditto.
(aarch64_be_crypto_sha1hv4si): Ditto.
(aarch64_crypto_sha1su1v4si): Ditto.
(aarch64_crypto_sha1<sha1_op>v4si): Ditto.
(aarch64_crypto_sha1su0v4si): Ditto.
(aarch64_crypto_sha256h<sha256_op>v4si): Ditto.
(aarch64_crypto_sha256su0v4si): Ditto.
(aarch64_crypto_sha256su1v4si): Ditto.
(doc/invoke.texi): Document new aes and sha2 options.
From-SVN: r256478
Martin Sebor [Thu, 11 Jan 2018 05:13:57 +0000 (05:13 +0000)]
PR tree-optimization/83781 - Bootstrap failed on x86 with --with-arch=corei7
PR tree-optimization/83781 - Bootstrap failed on x86 with --with-arch=corei7
--with-cpu=corei7
gcc/ChangeLog:
* gimple-fold.c (get_range_strlen): Avoid treating arrays of pointers
as string arrays.
gcc/testsuite/ChangeLog:
* gcc.dg/strlenopt-42.c: New test.
From-SVN: r256477
Martin Sebor [Thu, 11 Jan 2018 04:37:48 +0000 (04:37 +0000)]
re PR tree-optimization/83501 (strlen(a) not folded after strcpy(a, "..."))
2018-01-11 Martin Sebor <msebor@gmail.com>
Prathamesh Kulkarni <prathamesh.kulkarni@linaro.org>
PR tree-optimization/83501
PR tree-optimization/81703
* tree-ssa-strlen.c (get_string_cst): Rename...
(get_string_len): ...to this. Handle global constants.
(handle_char_store): Adjust.
testsuite/
* gcc.dg/strlenopt-39.c: New test-case.
* gcc.dg/pr81703.c: Likewise.
Co-Authored-By: Prathamesh Kulkarni <prathamesh.kulkarni@linaro.org>
From-SVN: r256475
Ian Lance Taylor [Thu, 11 Jan 2018 01:51:16 +0000 (01:51 +0000)]
debug/dwarf: formStrp uses a 64-bit value for 64-bit DWARF
No test as the only system I know that uses 64-bit DWARF is AIX.
Backport of https://golang.org/cl/84379, which will be in Go 1.11.
Backporting now for AIX support in gccgo.
Reviewed-on: https://go-review.googlesource.com/87296
From-SVN: r256474
GCC Administrator [Thu, 11 Jan 2018 00:16:14 +0000 (00:16 +0000)]
Daily bump.
From-SVN: r256472
Eric Botcazou [Wed, 10 Jan 2018 23:36:02 +0000 (23:36 +0000)]
decl.c (gnat_to_gnu_component_type): Apply the check for atomic access once the component size is taken into account...
* gcc-interface/decl.c (gnat_to_gnu_component_type): Apply the check
for atomic access once the component size is taken into account and
also do it if the component type is Atomic or Volatile_Full_Access.
From-SVN: r256465
Steven G. Kargl [Wed, 10 Jan 2018 23:26:15 +0000 (23:26 +0000)]
re PR fortran/82367 (ICE with deferred length string allocate on non-deferred length argument)
2018-01-10 Steven G. Kargl <kargl@gcc.gnu.org>
PR fortran/82367
* resolve.c (resolve_allocate_expr): Check for NULL pointer.
2018-01-10 Steven G. Kargl <kargl@gcc.gnu.org>
PR fortran/82367
* gfortran.dg/deferred_character_18.f90: New test.
From-SVN: r256464
Eric Botcazou [Wed, 10 Jan 2018 23:14:49 +0000 (23:14 +0000)]
c-ada-spec.c (dump_number): Add FLOAT_P parameter.
* c-ada-spec.c (dump_number): Add FLOAT_P parameter.
Skip 'f' and 'F' characters if it is true.
(store_ada_macro): Minor tweak.
(dump_ada_macros) <CPP_COMMENT>: Likewise.
<CPP_WSTRING>: Likewise.
<CPP_STRING>: Output '&' in the buffer if not the first string.
<CPP_NUMBER>: Adjust calls to dump_number.
From-SVN: r256463
Kito Cheng [Wed, 10 Jan 2018 23:00:38 +0000 (23:00 +0000)]
RISC-V: Add naked function support.
2018-01-10 Kito Cheng <kito.cheng@gmail.com>
gcc/
* config/riscv/riscv-protos.h (riscv_output_return): New.
* config/riscv/riscv.c (struct machine_function): New naked_p field.
(riscv_attribute_table, riscv_output_return),
(riscv_handle_fndecl_attribute, riscv_naked_function_p),
(riscv_allocate_stack_slots_for_args, riscv_warn_func_return): New.
(riscv_compute_frame_info): Only compute frame->mask if not a naked
function.
(riscv_expand_prologue): Add early return for naked function.
(riscv_expand_epilogue): Likewise.
(riscv_function_ok_for_sibcall): Return false for naked function.
(riscv_set_current_function): New.
(TARGET_SET_CURRENT_FUNCTION, TARGET_ALLOCATE_STACK_SLOTS_FOR_ARGS),
(TARGET_ATTRIBUTE_TABLE, TARGET_WARN_FUNC_RETURN): New.
* config/riscv/riscv.md (simple_return): Call riscv_output_return.
* doc/extend.texi (RISC-V Function Attributes): New.
Co-Authored-By: Jim Wilson <jimw@sifive.com>
From-SVN: r256462
Daniel van Gerpen [Wed, 10 Jan 2018 22:40:53 +0000 (22:40 +0000)]
argv.c (expandargv): Correct check for dynamically allocated argv.
2018-01-10 Daniel van Gerpen <daniel@vangerpen.de>
* argv.c (expandargv): Correct check for dynamically
allocated argv.
From-SVN: r256460
Michael Meissner [Wed, 10 Jan 2018 22:02:31 +0000 (22:02 +0000)]
rs6000.c (is_complex_IBM_long_double): Explicitly check for 128-bit long double before checking TCmode.
2018-01-10 Michael Meissner <meissner@linux.vnet.ibm.com>
* config/rs6000/rs6000.c (is_complex_IBM_long_double): Explicitly
check for 128-bit long double before checking TCmode.
* config/rs6000/rs6000.h (FLOAT128_IEEE_P): Explicitly check for
128-bit long doubles before checking TFmode or TCmode.
(FLOAT128_IBM_P): Likewise.
From-SVN: r256458
Martin Sebor [Wed, 10 Jan 2018 21:40:14 +0000 (21:40 +0000)]
PR tree-optimization/83671 - Fix for false positive reported by -Wstringop-overflow does not work with inlining
gcc/testsuite/ChangeLog:
PR tree-optimization/83671
* gcc.dg/strlenopt-40.c: New test.
* gcc.dg/strlenopt-41.c: New test.
gcc/ChangeLog:
PR tree-optimization/83671
* builtins.c (c_strlen): Unconditionally return zero for the empty
string.
Use -Warray-bounds for warnings.
* gimple-fold.c (get_range_strlen): Handle non-constant lengths
for non-constant array indices with COMPONENT_REF, arrays of
arrays, and pointers to arrays.
(gimple_fold_builtin_strlen): Determine and set length range for
non-constant character arrays.
From-SVN: r256457
Aldy Hernandez [Wed, 10 Jan 2018 21:39:20 +0000 (21:39 +0000)]
re PR middle-end/81897 (spurious -Wmaybe-uninitialized warning)
PR middle-end/81897
* tree-ssa-uninit.c (convert_control_dep_chain_into_preds): Skip
empty blocks.
From-SVN: r256456
Steven G. Kargl [Wed, 10 Jan 2018 21:31:43 +0000 (21:31 +0000)]
[multiple changes]
2018-01-10 Steven G. Kargl <kargl@gcc.gnu.org>
PR fortran/83093
* resolve.c (resolve_charlen): Check the type of cl->length
after resolution.
2018-01-10 Steven G. Kargl <kargl@gcc.gnu.org>
PR fortran/83093
* gfortran.dg/allocate_with_typespec_7.f90: New test.
From-SVN: r256455
Eric Botcazou [Wed, 10 Jan 2018 20:59:04 +0000 (20:59 +0000)]
* dwarf2out.c (dwarf2out_var_location): Do not pass NULL to fprintf.
From-SVN: r256454
Peter Bergner [Wed, 10 Jan 2018 20:49:36 +0000 (14:49 -0600)]
re PR target/83399 (Power8 ICE During LRA with 2-op rtl pattern for lvx instruction)
gcc/
PR target/83399
* config/rs6000/rs6000.c (print_operand) <'y'>: Use
VECTOR_MEM_ALTIVEC_OR_VSX_P.
* config/rs6000/vsx.md (*vsx_le_perm_load_<mode> for VSX_D): Use
indexed_or_indirect_operand predicate.
(*vsx_le_perm_load_<mode> for VSX_W): Likewise.
(*vsx_le_perm_load_v8hi): Likewise.
(*vsx_le_perm_load_v16qi): Likewise.
(*vsx_le_perm_store_<mode> for VSX_D): Likewise.
(*vsx_le_perm_store_<mode> for VSX_W): Likewise.
(*vsx_le_perm_store_v8hi): Likewise.
(*vsx_le_perm_store_v16qi): Likewise.
(eight unnamed splitters): Likewise.
gcc/testsuite/
PR target/83399
* gcc.target/powerpc/pr83399.c: New test.
From-SVN: r256453
Peter Bergner [Wed, 10 Jan 2018 20:19:26 +0000 (14:19 -0600)]
x86intrin.h: Change #warning to #error.
* config/rs6000/x86intrin.h: Change #warning to #error. Update message.
* config/rs6000/emmintrin.h: Likewise.
* config/rs6000/mmintrin.h: Likewise.
* config/rs6000/xmmintrin.h: Likewise.
From-SVN: r256452
Paolo Carlini [Wed, 10 Jan 2018 19:54:17 +0000 (19:54 +0000)]
parser.c (cp_parser_std_attribute_spec): When token_pair::require_open / require_close return false simply return...
2018-01-10 Paolo Carlini <paolo.carlini@oracle.com>
* parser.c (cp_parser_std_attribute_spec): When
token_pair::require_open / require_close return false simply
return error_mark_node, avoid duplicate cp_parser_error about
expected '(' / ')', respectively.
From-SVN: r256451
Ian Lance Taylor [Wed, 10 Jan 2018 19:51:24 +0000 (19:51 +0000)]
os, syscall: handle _st_timespec for AIX stat
Reviewed-on: https://go-review.googlesource.com/87197
From-SVN: r256450
David Malcolm [Wed, 10 Jan 2018 19:40:55 +0000 (19:40 +0000)]
Preserving locations for variable-uses and constants (PR c++/43486)
This patch implements location wrapper nodes, preserving source locations
of the uses of variables and constants in various places in the
C++ frontend: at the arguments at callsites, and for typeid, alignof,
sizeof, and offsetof.
For example, it allows the C++ FE to underline the pertinent argument
for mismatching calls, for such expressions, improving:
extern int callee (int one, const char *two, float three);
int caller (int first, int second, float third)
{
return callee (first, second, third);
}
from
test.cc: In function 'int caller(int, int, float)':
test.cc:5:38: error: invalid conversion from 'int' to 'const char*' [-fpermissive]
return callee (first, second, third);
^
test.cc:1:41: note: initializing argument 2 of 'int callee(int, const char*, float)'
extern int callee (int one, const char *two, float three);
~~~~~~~~~~~~^~~
to:
test.cc: In function 'int caller(int, int, float)':
test.cc:5:25: error: invalid conversion from 'int' to 'const char*' [-fpermissive]
return callee (first, second, third);
^~~~~~
test.cc:1:41: note: initializing argument 2 of 'int callee(int, const char*, float)'
extern int callee (int one, const char *two, float three);
~~~~~~~~~~~~^~~
This is the combination of the following patches:
"[PATCH 01/14] C++: preserve locations within build_address"
https://gcc.gnu.org/ml/gcc-patches/2017-11/msg00883.html
"[PATCH v2.4 of 02/14] Support for adding and stripping location_t wrapper nodes"
https://gcc.gnu.org/ml/gcc-patches/2018-01/msg00591.html
"[PATCH] Eliminate location wrappers in tree_nop_conversion/STRIP_NOPS"
https://gcc.gnu.org/ml/gcc-patches/2017-12/msg01330.html
"[PATCH v4 of 03/14] C++: add location_t wrapper nodes during parsing (minimal impl)"
https://gcc.gnu.org/ml/gcc-patches/2018-01/msg00660.html
"[PATCH 04/14] Update testsuite to show improvements"
https://gcc.gnu.org/ml/gcc-patches/2017-11/msg00891.html
"[v3 of 05/14] C++: handle locations wrappers when calling warn_for_memset"
https://gcc.gnu.org/ml/gcc-patches/2017-12/msg01378.html
"[PATCH 07/14] reject_gcc_builtin: strip any location wrappers"
https://gcc.gnu.org/ml/gcc-patches/2017-11/msg00886.html
"[v3 of PATCH 08/14] cp/tree.c: strip location wrappers in lvalue_kind"
https://gcc.gnu.org/ml/gcc-patches/2017-12/msg01433.html
"[PATCH 09/14] Strip location wrappers in null_ptr_cst_p"
https://gcc.gnu.org/ml/gcc-patches/2017-11/msg00888.html
"[PATCH 11/14] Handle location wrappers in string_conv_p"
https://gcc.gnu.org/ml/gcc-patches/2017-11/msg00890.html
"[PATCH 12/14] C++: introduce null_node_p"
https://gcc.gnu.org/ml/gcc-patches/2017-11/msg00894.html
"[v3 of PATCH 13/14] c-format.c: handle location wrappers"
https://gcc.gnu.org/ml/gcc-patches/2017-12/msg01494.html
"[PATCH 14/14] pp_c_cast_expression: don't print casts for location wrappers"
https://gcc.gnu.org/ml/gcc-patches/2017-11/msg00893.html
"[v3 of PATCH 15/14] Use fold_for_warn in get_atomic_generic_size"
https://gcc.gnu.org/ml/gcc-patches/2017-12/msg01380.html
"[PATCH] Add selftest for "fold_for_warn (error_mark_node)""
https://gcc.gnu.org/ml/gcc-patches/2017-12/msg01385.html
gcc/c-family/ChangeLog:
PR c++/43486
* c-common.c: Include "selftest.h".
(get_atomic_generic_size): Perform the test for integral type
before the range test for any integer constant, fixing indentation
of braces. Call fold_for_warn before testing for an INTEGER_CST.
(reject_gcc_builtin): Strip any location wrapper from EXPR.
(selftest::test_fold_for_warn): New function.
(selftest::c_common_c_tests): New function.
(selftest::c_family_tests): Call it, and
selftest::c_pretty_print_c_tests.
* c-common.h (selftest::c_pretty_print_c_tests): New decl.
* c-format.c (check_format_arg): Convert VAR_P check to a
fold_for_warn.
* c-pretty-print.c: Include "selftest.h".
(pp_c_cast_expression): Don't print casts for location wrappers.
(selftest::assert_c_pretty_printer_output): New function.
(ASSERT_C_PRETTY_PRINTER_OUTPUT): New macro.
(selftest::test_location_wrappers): New function.
(selftest::c_pretty_print_c_tests): New function.
* c-warn.c (warn_for_memset): Call fold_for_warn on the arguments.
gcc/cp/ChangeLog:
PR c++/43486
* call.c (null_ptr_cst_p): Strip location wrappers when
converting from '0' to a pointer type in C++11 onwards.
(conversion_null_warnings): Replace comparison with null_node with
call to null_node_p.
(build_over_call): Likewise.
* cp-gimplify.c (cp_fold): Remove the early bailout when
processing_template_decl.
* cp-lang.c (selftest::run_cp_tests): Call
selftest::cp_pt_c_tests and selftest::cp_tree_c_tests.
* cp-tree.h (cp_expr::maybe_add_location_wrapper): New method.
(selftest::run_cp_tests): Move decl to bottom of file.
(null_node_p): New inline function.
(selftest::cp_pt_c_tests): New decl.
(selftest::cp_tree_c_tests): New decl.
* cvt.c (build_expr_type_conversion): Replace comparison with
null_node with call to null_node_p.
* error.c (args_to_string): Likewise.
* except.c (build_throw): Likewise.
* mangle.c (write_expression): Skip location wrapper nodes.
* parser.c (literal_integer_zerop): New function.
(cp_parser_postfix_expression): Call maybe_add_location_wrapper on
the result for RID_TYPEID. Pass true for new "wrap_locations_p"
param of cp_parser_parenthesized_expression_list. When calling
warn_for_memset, replace integer_zerop calls with
literal_integer_zerop, eliminating the double logical negation
cast to bool. Eliminate the special-casing for CONST_DECL in
favor of the fold_for_warn within warn_for_memset.
(cp_parser_parenthesized_expression_list): Add "wrap_locations_p"
param, defaulting to false. Convert "expr" to a cp_expr, and call
maybe_add_location_wrapper on it when wrap_locations_p is true.
(cp_parser_unary_expression): Call maybe_add_location_wrapper on
the result for RID_ALIGNOF and RID_SIZEOF.
(cp_parser_builtin_offsetof): Likewise.
* pt.c: Include "selftest.h".
(tsubst_copy): Handle location wrappers.
(tsubst_copy_and_build): Likewise.
(build_non_dependent_expr): Likewise.
(selftest::test_build_non_dependent_expr): New function.
(selftest::cp_pt_c_tests): New function.
* tree.c: Include "selftest.h".
(lvalue_kind): Handle VIEW_CONVERT_EXPR location wrapper nodes.
(selftest::test_lvalue_kind): New function.
(selftest::cp_tree_c_tests): New function.
* typeck.c (string_conv_p): Strip any location wrapper from "exp".
(cp_build_binary_op): Replace comparison with null_node with call
to null_node_p.
(build_address): Use location of operand when building address
expression.
gcc/testsuite/ChangeLog:
PR c++/43486
* g++.dg/diagnostic/param-type-mismatch.C: Update expected results
to reflect that the arguments are correctly underlined.
* g++.dg/plugin/diagnostic-test-expressions-1.C: Add test coverage
for globals, params, locals and literals.
(test_sizeof): Directly test the location of "sizeof", rather than
when used in compound expressions.
(test_alignof): Likewise for "alignof".
(test_string_literals): Likewise for string literals.
(test_numeric_literals): Likewise for numeric literals.
(test_builtin_offsetof): Likewise for "__builtin_offsetof".
(test_typeid): Likewise for typeid.
(test_unary_plus): New.
* g++.dg/warn/Wformat-1.C: Add tests of pointer arithmetic on
format strings.
gcc/ChangeLog:
PR c++/43486
* tree-core.h: Document EXPR_LOCATION_WRAPPER_P's usage of
"public_flag".
* tree.c (tree_nop_conversion): Return true for location wrapper
nodes.
(maybe_wrap_with_location): New function.
(selftest::check_strip_nops): New function.
(selftest::test_location_wrappers): New function.
(selftest::tree_c_tests): Call it.
* tree.h (STRIP_ANY_LOCATION_WRAPPER): New macro.
(maybe_wrap_with_location): New decl.
(EXPR_LOCATION_WRAPPER_P): New macro.
(location_wrapper_p): New inline function.
(tree_strip_any_location_wrapper): New inline function.
From-SVN: r256448
Uros Bizjak [Wed, 10 Jan 2018 19:39:04 +0000 (20:39 +0100)]
pr82618.c (dg-options): Add -mno-stv.
* gcc.target/i386/pr82618.c (dg-options): Add -mno-stv.
From-SVN: r256447
Ian Lance Taylor [Wed, 10 Jan 2018 19:19:02 +0000 (19:19 +0000)]
libgo: add platform support for SuperH
Reviewed-on: https://go-review.googlesource.com/84555
From-SVN: r256446
Aaron Sawdey [Wed, 10 Jan 2018 18:30:41 +0000 (18:30 +0000)]
memcmp-1.c: Reduce runtime to something reasonable.
2018-01-10 Aaron Sawdey <acsawdey@linux.vnet.ibm.com>
* gcc.dg/memcmp-1.c: Reduce runtime to something reasonable.
From-SVN: r256443
Ian Lance Taylor [Wed, 10 Jan 2018 18:02:33 +0000 (18:02 +0000)]
Add missing .a files.
Add missing .a files. These should have been committed with the
update to go1.10beta1, but were skipped because by default Subversion
ignores all files matching *.a.
From-SVN: r256442
Marek Polacek [Wed, 10 Jan 2018 17:05:14 +0000 (17:05 +0000)]
re PR c++/82541 (Wduplicated-branches triggers in template context)
PR c++/82541
* call.c (build_conditional_expr_1): Check complain before warning.
* pt.c (tsubst_copy_and_build) <case COND_EXPR>: Suppress
-Wduplicated-branches.
* g++.dg/warn/Wduplicated-branches4.C: New test.
From-SVN: r256441
Jakub Jelinek [Wed, 10 Jan 2018 16:59:09 +0000 (17:59 +0100)]
re PR c++/81327 (cast to void* does not suppress -Wclass-memaccess)
PR c++/81327
* call.c (maybe_warn_class_memaccess): Add forward declaration.
Change last argument from tree * to const vec<tree, va_gc> *, adjust
args uses and check number of operands too. Don't strip away any
nops. Use maybe_constant_value when looking for INTEGER_CST args.
Deal with src argument not having pointer type. Check
tree_fits_uhwi_p before calling tree_to_uhwi. Remove useless
test.
(build_over_call): Call maybe_warn_class_memaccess here on the
original arguments.
(build_cxx_call): Rather than here on converted arguments.
* g++.dg/Wclass-memaccess-2.C: Don't expect a warning when explicitly
cast to void *.
From-SVN: r256440
François Dumont [Wed, 10 Jan 2018 16:59:02 +0000 (16:59 +0000)]
2018-01-10 François Dumont <fdumont@gcc.gnu.org>
* include/bits/forward_list.h
(_Fwd_list_node_base(_Fwd_list_node_base&&)): New.
(_Fwd_list_node_base& operator=(_Fwd_list_node_base&&)): New.
(_Fwd_list_node_base(const _Fwd_list_node_base&)): Explicit delete.
(_Fwd_list_node_base& operator=(const _Fwd_list_node_base&)): Likewise.
(_Fwd_list_impl()): Add noexcept qualification.
(_Fwd_list_impl(const _Node_alloc_type&)): Delete.
(_Fwd_list_impl(_Fwd_list_impl&&)): New, default.
(_Fwd_list_impl(_Fwd_list_impl&&, _Node_alloc_type&&)): New.
(_Fwd_list_base()): Default.
(_Fwd_list_base(_Fwd_list_base&&, _Node_alloc_type&&, true_type)): New.
(_Fwd_list_base(_Fwd_list_base&&)): Default.
(forward_list<>()): Default.
(forward_list<>(forward_list&&)): Default.
(forward_list(forward_list&&, _Node_alloc_type&&, false_type)): New.
(forward_list(forward_list&&, _Node_alloc_type&&, true_type)): New.
(forward_list(forward_list&&, const _Alloc&)): Adapt to use latters.
* include/bits/forward_list.tcc
(_Fwd_list_base(_Fwd_list_base&&, _Node_alloc_type&&)): Adapt to use
_M_impl._M_head move assignment.
(forward_list<>::merge(forward_list<>&&, _Comp)): Likewise.
* testsuite/23_containers/forward_list/allocator/default_init.cc: New.
From-SVN: r256439
Paolo Carlini [Wed, 10 Jan 2018 16:37:22 +0000 (16:37 +0000)]
re PR c++/81055 (ICE with invalid initializer for array new)
/cp
2018-01-10 Paolo Carlini <paolo.carlini@oracle.com>
PR c++/81055
* init.c (build_vec_init): Avoid building an INIT_EXPR with
error_mark_node as second argument.
/testsuite
2018-01-10 Paolo Carlini <paolo.carlini@oracle.com>
PR c++/81055
* g++.dg/cpp0x/new2.C: New.
From-SVN: r256438
Ian Lance Taylor [Wed, 10 Jan 2018 15:42:23 +0000 (15:42 +0000)]
re PR c/82922 (Request: add -Wstrict-prototypes to -Wextra as K&R style is obsolescent)
PR c/82922
runtime, syscall: use full prototypes in C code
Based on patch by Martin Sebor.
Reviewed-on: https://go-review.googlesource.com/86815
From-SVN: r256437
H.J. Lu [Wed, 10 Jan 2018 15:37:49 +0000 (15:37 +0000)]
i386: Also adjust stack frame for stack slot alignment
We should also adjust stack_realign_offset for the largest alignment of
stack slot actually used when stack realignment isn't needed. This is
required to keep stack frame properly aligned to satisfy the largest
alignment of stack slots.
Tested on Linux/i686 and Linux/x86-64.
gcc/
PR target/83735
* config/i386/i386.c (ix86_compute_frame_layout): Always adjust
stack_realign_offset for the largest alignment of stack slot
actually used.
(ix86_find_max_used_stack_alignment): New function.
(ix86_finalize_stack_frame_flags): Use it. Set
max_used_stack_alignment if we don't realign stack.
* config/i386/i386.h (machine_function): Add
max_used_stack_alignment.
gcc/testsuite/
PR target/83735
* gcc.target/i386/pr83735.c: New test.
From-SVN: r256436
Ian Lance Taylor [Wed, 10 Jan 2018 15:37:45 +0000 (15:37 +0000)]
exp: remove exp/proxy and exp/terminal packages
The exp/proxy package was removed from the master library in
https://golang.org/cl/
6461056 (August, 2012).
The exp/terminal package was removed from the master library in
https://golang.org/cl/
5970044 (March, 2012).
I'm not sure why they lingered in the gofrontend copy, but let's
finally remove them now.
Reviewed-on: https://go-review.googlesource.com/87138
From-SVN: r256435
Christophe Lyon [Wed, 10 Jan 2018 15:34:33 +0000 (15:34 +0000)]
[ARM] Add -mbranch-cost option, and update a few tests
2018-01-10 Christophe Lyon <christophe.lyon@linaro.org>
gcc/
* config/arm/arm.opt (-mbranch-cost): New option.
* config/arm/arm.h (BRANCH_COST): Take arm_branch_cost into
account.
gcc/testsuite/
* lib/target-supports.exp (check_effective_target_branch_cost):
New function.
* gcc.dg/builtin-bswap-7.c: Use branch_cost effective target.
* gcc.dg/pr21643.c: Likewise.
* gcc.dg/pr46309.c: Likewise.
* gcc.dg/tree-ssa/phi-opt-11.c: Likewise.
* gcc.dg/tree-ssa/phi-opt-2.c: Likewise.
* gcc.dg/tree-ssa/reassoc-32.c: Likewise.
* gcc.dg/tree-ssa/reassoc-33.c: Likewise.
* gcc.dg/tree-ssa/reassoc-34.c: Likewise.
* gcc.dg/tree-ssa/reassoc-35.c: Likewise.
* gcc.dg/tree-ssa/reassoc-36.c: Likewise.
* gcc.dg/tree-ssa/ssa-ifcombine-13.c: Likewise.
* gcc.dg/tree-ssa/ssa-ifcombine-ccmp-1.c: Likewise.
* gcc.dg/tree-ssa/ssa-ifcombine-ccmp-2.c: Likewise.
* gcc.dg/tree-ssa/ssa-ifcombine-ccmp-3.c: Likewise.
* gcc.dg/tree-ssa/ssa-ifcombine-ccmp-4.c: Likewise.
* gcc.dg/tree-ssa/ssa-ifcombine-ccmp-5.c: Likewise.
* gcc.dg/tree-ssa/ssa-ifcombine-ccmp-6.c: Likewise.
From-SVN: r256434
Ian Lance Taylor [Wed, 10 Jan 2018 15:18:55 +0000 (15:18 +0000)]
cmd/go: check for another GCC error message
GCC always recognizes the -fsplit-stack option, but then tests whether
it is supported by the selected target. If not, it reports
cc1: error: ‘-fsplit-stack’ is not supported by this compiler configuration
Check for that error message when deciding whether a compiler option works.
Reviewed-on: https://go-review.googlesource.com/87137
From-SVN: r256433
Segher Boessenkool [Wed, 10 Jan 2018 15:13:07 +0000 (16:13 +0100)]
rs6000: Wrap diff of immediates in const (PR83629)
In various of our 32-bit load_toc patterns we take the difference of
two immediates (labels) as a term to something bigger; but this isn't
canonical RTL, it needs to be wrapped in CONST.
PR target/83629
* config/rs6000/rs6000.md (load_toc_v4_PIC_2, load_toc_v4_PIC_3b,
load_toc_v4_PIC_3c): Wrap const term in CONST RTL.
testsuite/
PR target/83629
* gcc.target/powerpc/pr83629.c: New testcase.
From-SVN: r256432
Ian Lance Taylor [Wed, 10 Jan 2018 15:04:21 +0000 (15:04 +0000)]
runtime: fix makemap calls in __go_construct_map
The signature of makemap changed with the update to 1.10beta1,
but I forgot to update the call from C code.
Reviewed-on: https://go-review.googlesource.com/87135
From-SVN: r256431
Richard Biener [Wed, 10 Jan 2018 14:51:07 +0000 (14:51 +0000)]
re PR c/78768 (-Walloca-larger-than and -Wformat-length warnings disabled by -flto)
2018-01-10 Richard Biener <rguenther@suse.de>
PR testsuite/78768
* gcc.dg/pr78768.c: Un-XFAIL.
From-SVN: r256430
Richard Biener [Wed, 10 Jan 2018 14:41:34 +0000 (14:41 +0000)]
re PR debug/82425 (gcc.dg/guality/inline-params-2.c fail)
2018-01-10 Richard Biener <rguenther@suse.de>
PR debug/82425
* gcc.dg/guality/inline-params-2.c: Un-XFAIL for slim LTO.
From-SVN: r256429
Richard Biener [Wed, 10 Jan 2018 14:23:29 +0000 (14:23 +0000)]
re PR debug/83765 (LTO bootstrap with Ada fails)
2018-01-10 Richard Biener <rguenther@suse.de>
PR debug/83765
* dwarf2out.c (gen_subprogram_die): Hoist old_die && declaration
early out so it also covers the case where we have a non-NULL
origin.
From-SVN: r256428
Richard Sandiford [Wed, 10 Jan 2018 13:07:54 +0000 (13:07 +0000)]
Don't use permutes for single-element accesses (PR83753)
After cunrolling the inner loop, the remaining loop in the testcase
has a single 32-bit access and a group of 64-bit accesses. We first
try to vectorise at 128 bits (VF 4), but decide not to for cost reasons.
We then try with 64 bits (VF 2) instead. This means that the group
of 64-bit accesses uses a single-element vector, which is deliberately
supported as of r251538. We then try to create "permutes" for these
single-element vectors and fall foul of:
for (i = 0; i < 6; i++)
sel[i] += exact_div (nelt, 2);
in vect_grouped_store_supported, since nelt==1.
Maybe we shouldn't even be trying to vectorise statements in the
single-element case, and instead just copy the scalar statement
for each member of the group. But until then, this patch treats
non-strided grouped accesses as VMAT_CONTIGUOUS if no permutation
is necessary.
2018-01-10 Richard Sandiford <richard.sandiford@linaro.org>
gcc/
PR tree-optimization/83753
* tree-vect-stmts.c (get_group_load_store_type): Use VMAT_CONTIGUOUS
for non-strided grouped accesses if the number of elements is 1.
gcc/testsuite/
PR tree-optimization/83753
* gcc.dg/torture/pr83753.c: New test.
From-SVN: r256427
Janne Blomqvist [Wed, 10 Jan 2018 11:34:45 +0000 (13:34 +0200)]
PR 83740 Wrong string length type in bounds check
This patch fixes up the formatting and corrects the PR number in the
ChangeLog for r256425.
gcc/fortran/ChangeLog:
2018-01-10 Janne Blomqvist <jb@gcc.gnu.org>
PR fortran/83740
* trans-array.c (gfc_trans_array_ctor_element): Fix formatting.
From-SVN: r256426
Janne Blomqvist [Wed, 10 Jan 2018 11:18:31 +0000 (13:18 +0200)]
PR 84740 Wrong string length type in bounds check
Need to convert the RHS to the type of the LHS when assigning.
Regtested on x86_64-pc-linux-gnu, committed as obvious.
gcc/fortran/ChangeLog:
2018-01-10 Janne Blomqvist <jb@gcc.gnu.org>
PR fortran/84740
* trans-array.c (gfc_trans_array_ctor_element): Convert RHS to the
LHS type when assigning.
From-SVN: r256425
Jan Hubicka [Wed, 10 Jan 2018 11:02:55 +0000 (12:02 +0100)]
re PR target/81616 (Update -mtune=generic for the current Intel and AMD processors)
PR target/81616
* i386.c (ix86_vectorize_builtin_gather): Check TARGET_USE_GATHER.
* i386.h (TARGET_USE_GATHER): Define.
* x86-tune.def (X86_TUNE_USE_GATHER): New.
From-SVN: r256424
Jan Hubicka [Wed, 10 Jan 2018 11:01:25 +0000 (12:01 +0100)]
avx2-gather-1.c: Add -march.
* gcc.target/i386/avx2-gather-1.c: Add -march.
* gcc.target/i386/avx2-gather-2.c: Add -march.
* gcc.target/i386/avx2-gather-3.c: Add -march.
* gcc.target/i386/avx2-gather-4.c: Add -march.
* gcc.target/i386/avx2-gather-5.c: Add -march.
* gcc.target/i386/avx2-gather-6.c: Add -march.
* gcc.target/i386/avx512f-gather-1.c: Add -march.
* gcc.target/i386/avx512f-gather-2.c: Add -march.
* gcc.target/i386/avx512f-gather-3.c: Add -march.
* gcc.target/i386/avx512f-gather-4.c: Add -march.
* gcc.target/i386/avx512f-gather-5.c: Add -march.
* gcc.target/i386/avx512f-i32gatherd512-1.c: Add -march.
* gcc.target/i386/avx512f-i32gatherd512-2.c: Add -march.
* gcc.target/i386/avx512f-i32gatherpd512-1.c: Add -march.
* gcc.target/i386/avx512f-i32gatherpd512-2.c: Add -march.
* gcc.target/i386/avx512f-i32gatherps512-1.c: Add -march.
From-SVN: r256423
Martin Liska [Wed, 10 Jan 2018 10:54:20 +0000 (11:54 +0100)]
Clean up partitioning in try_optimize_cfg (PR bootstrap/82831).
2018-01-10 Martin Liska <mliska@suse.cz>
PR bootstrap/82831
* basic-block.h (CLEANUP_NO_PARTITIONING): New define.
* bb-reorder.c (pass_reorder_blocks::execute): Do not clean up
partitioning.
* cfgcleanup.c (try_optimize_cfg): Fix up partitioning if
CLEANUP_NO_PARTITIONING is not set.
From-SVN: r256422
Richard Sandiford [Wed, 10 Jan 2018 08:46:07 +0000 (08:46 +0000)]
Mostly revert r254296
r254296 added support for (const ...) wrappers around vectors,
but in the end the agreement was to use a variable-length
encoding of CONST_VECTOR (and VECTOR_CST) instead. This patch
therefore reverts the bits that are no longer needed.
The rtl.texi part isn't a full revert, since r254296 also updated the
documentation to mention unspecs in address calculations, and to relax
the requirement that the mode had to be Pmode.
2018-01-10 Richard Sandiford <richard.sandiford@linaro.org>
gcc/
* doc/rtl.texi: Remove documentation of (const ...) wrappers
for vectors, as a partial revert of r254296.
* rtl.h (const_vec_p): Delete.
(const_vec_duplicate_p): Don't test for vector CONSTs.
(unwrap_const_vec_duplicate, const_vec_series_p): Likewise.
* expmed.c (make_tree): Likewise.
Revert:
* common.md (E, F): Use CONSTANT_P instead of checking for
CONST_VECTOR.
* emit-rtl.c (gen_lowpart_common): Use const_vec_p instead of
checking for CONST_VECTOR.
From-SVN: r256421
Jan Hubicka [Wed, 10 Jan 2018 08:19:52 +0000 (09:19 +0100)]
re PR rtl-optimization/83575 (ICE: verify_flow_info failed (error: multiple hot/cold transitions found))
PR middle-end/83575
* predict.c (force_edge_cold): Handle in more sane way edges
with no prediction.
From-SVN: r256420
Ian Lance Taylor [Wed, 10 Jan 2018 05:26:29 +0000 (05:26 +0000)]
runtime: work around escaping closure in export_test.go
When compiling runtime, it is not allowed for local variables
and closures to be heap allocated. In one test, there is a go
statement with a closure. In the gc compiler, it distinguishes
capturing variable by value vs. by address, and rewrites it to
passing the captured values as arguments. Currently we don't
have this, and the escape analysis decides to heap allocate the
closure and also the captured variables, which is not allowed.
Work around it by passing the variables explicitly.
This is in preparation of turning on escape analysis for the
runtime.
Reviewed-on: https://go-review.googlesource.com/86245
From-SVN: r256419
Ian Lance Taylor [Wed, 10 Jan 2018 05:15:52 +0000 (05:15 +0000)]
runtime: noescape some functions/variables
This is in preparation of turning on escape analysis for the
runtime.
- In gccgo, systemstack is implemented with mcall, which is not
go:noescape. Wrap the closure in noescape so the escape analysis
does not think it escapes.
- Mark some C functions go:noescape. They do not leak arguments.
- Use noescape function to make a few local variables' addresses
not escape. The escape analysis cannot figure out because they
are assigned to pointer indirections.
Reviewed-on: https://go-review.googlesource.com/86244
From-SVN: r256418