platform/upstream/gcc.git
5 years agosse.md (vec_concatv2df): Change (v,xm,C) alternative to (v,vm,c).
Uros Bizjak [Mon, 3 Dec 2018 20:44:37 +0000 (21:44 +0100)]
sse.md (vec_concatv2df): Change (v,xm,C) alternative to (v,vm,c).

* config/i386/sse.md (vec_concatv2df): Change (v,xm,C)
alternative to (v,vm,c).

From-SVN: r266765

5 years agocmd/go: allow buildmode c-archive for gccgo on ppc64
Ian Lance Taylor [Mon, 3 Dec 2018 20:25:11 +0000 (20:25 +0000)]
cmd/go: allow buildmode c-archive for gccgo on ppc64

    In buildmodeinit, the c-archive buildmode is flagged as invalid
    on linux/ppc64 for gccgo when it should be valid. This happens
    because the check against the gccgo flag is done after the checks
    for valid GOOS/GOARCH pairs instead of before as is done for all
    other buildmode cases in this switch. This corrects the problem and
    allows several of the gccgo gotools testcases to pass on linux/ppc64.

    Updates #29046

    Reviewed-on: https://go-review.googlesource.com/c/152137

From-SVN: r266764

5 years agoDisallow configuring for powerpc*-*-linux*paired
Segher Boessenkool [Mon, 3 Dec 2018 19:34:22 +0000 (20:34 +0100)]
Disallow configuring for powerpc*-*-linux*paired

The proper way, that is.

* gcc/config.gcc (Unsupported targets): Add powerpc*-*-linux*paired*.
(powerpc*-*-linux*): Don't handle it here.

From-SVN: r266763

5 years agoh8300.md (<code>qi3_1): Add gcc_unreachable to keep warnings quiet.
Jeff Law [Mon, 3 Dec 2018 17:13:20 +0000 (10:13 -0700)]
h8300.md (<code>qi3_1): Add gcc_unreachable to keep warnings quiet.

* config/h8300/h8300.md (<code>qi3_1): Add gcc_unreachable to keep
warnings quiet.

From-SVN: r266762

5 years agore PR fortran/87919 (Incorrect fortran handling of -fno-* options)
Fritz Reese [Mon, 3 Dec 2018 17:10:50 +0000 (17:10 +0000)]
re PR fortran/87919 (Incorrect fortran handling of -fno-* options)

PR fortran/87919
* options.c (SET_FLAG, SET_BITFLAG, SET_BITFLAG2): New macros.
(set_dec_flags): Set/unset DEC and std flags according to value.
(post_dec_flags, set_init_local_zero): New functions.
(gfc_init_options): Use set_init_local_zero and post_dec_flags.
(gfc_handle_options) <case OPT_fcheck_array_temporaries>: Use
SET_BITFLAG.
<case OPT_finit_local_zero>: Use set_init_local_zero.
<case OPT_fdec>: Pass value to set_dec_flags.
<case OPT_fdec_structure>: Remove.

Co-Authored-By: Mark Eggleston <mark.eggleston@codethink.co.uk>
From-SVN: r266761

5 years ago* g++.dg/cpp1y/lambda-generic-83856.C: Use __SIZE_TYPE__.
Marek Polacek [Mon, 3 Dec 2018 16:06:54 +0000 (16:06 +0000)]
* g++.dg/cpp1y/lambda-generic-83856.C: Use __SIZE_TYPE__.

From-SVN: r266760

5 years ago[Ada] Fixes for various wrong and missing error messages on ACATS B85100[567]
Gary Dismukes [Mon, 3 Dec 2018 15:49:56 +0000 (15:49 +0000)]
[Ada] Fixes for various wrong and missing error messages on ACATS B85100[567]

GNAT was missing errors as well as issuing messages on legal lines in
new ACATS tests for illegal renamings of discriminant-dependent
components. Cases that are fixed include object names involving
qualified expressions, dereference cases, and generic formal access and
formal derived types. Better implements the "known to be constrained"
rules in the Ada RM.

Tested by new ACATS tests B85100[567] that are soon to be released.

2018-12-03  Gary Dismukes  <dismukes@adacore.com>

gcc/ada/

* sem_aux.adb (Object_Type_Has_Constrained_Partial_View): Return
True for an untagged discriminated formal derived type when
referenced within a generic body (augments existing test for
formal private types).
* sem_util.adb (Is_Dependent_Component_Of_Mutable_Type): If the
prefix of the name is a qualified expression, retrieve the
operand of that. Add a test of whether the (possible)
dereference prefix is a variable, and also test whether that
prefix might just be of an access type (occurs in some implicit
dereference cases) rather than being an explicit dereference.
Retrieve the Original_Node of the object name's main prefix and
handle the possibility of that being a qualified expression.
Remove special-case code for explicit dereferences that don't
come from source. Add test for the renaming not being within a
generic body for proper determination of whether a formal access
type is known to be constrained (it is within a generic spec,
but not in the body).  Fix an existing incorrect test for
renaming of a discriminant-dependent component of a untagged
generic formal type being within a generic body, adding test of
taggedness and calling In_Generic_Body (now properly checks for
cases where the renaming is in a nongeneric body nested within a
generic).  Return False in cases where the selector is not a
component (or discriminant), which can occur for
prefixed-notation calls.

From-SVN: r266759

5 years ago[Ada] Spurious error on dependent expression that is an array
Ed Schonberg [Mon, 3 Dec 2018 15:49:50 +0000 (15:49 +0000)]
[Ada] Spurious error on dependent expression that is an array

This patch fixes a spurious error on a array expression that is a
dependent expression of an if-expression, when the length of the array
matches that imposed by the context, but the bounds of both differ, in
particular when the expression and the context are both null arrays with
different bounds.

2018-12-03  Ed Schonberg  <schonberg@adacore.com>

gcc/ada/

* sem_res.adb (Apply_Check): For array types, apply a length
check rather than a qualification, to avoid spurious errors when
the value of a dependend expression has a matching length but
different bounds from those of the type of the contect.

gcc/testsuite/

* gnat.dg/array33.adb: New testcase.

From-SVN: r266758

5 years ago[Ada] Add leap seconds for 2015 and 2016
Hristian Kirtchev [Mon, 3 Dec 2018 15:49:42 +0000 (15:49 +0000)]
[Ada] Add leap seconds for 2015 and 2016

The following patch updates Ada.Calendar and helper utility Xleaps to
include the leap seconds for years 2015 and 2016.

2018-12-03  Hristian Kirtchev  <kirtchev@adacore.com>

gcc/ada/

* libgnat/a-calend.adb: Update the number of leap seconds. Add
the hard time values for year 2015 and 2016.

From-SVN: r266757

5 years ago[Ada] Spelling fixes and minor reformatting
Gary Dismukes [Mon, 3 Dec 2018 15:49:37 +0000 (15:49 +0000)]
[Ada] Spelling fixes and minor reformatting

2018-12-03  Gary Dismukes  <dismukes@adacore.com>

gcc/ada/

* exp_ch3.adb, libgnarl/s-taasde.adb, libgnarl/s-taenca.adb,
libgnarl/s-tarest.adb, libgnarl/s-tasini.adb,
libgnarl/s-taskin.ads, libgnarl/s-tasren.adb,
libgnarl/s-tassta.adb, libgnarl/s-tasuti.adb: Spelling fixes and
minor reformatting.

From-SVN: r266756

5 years ago[Ada] Fix recent regression on array aggregate with dynamic subtype
Eric Botcazou [Mon, 3 Dec 2018 15:49:23 +0000 (15:49 +0000)]
[Ada] Fix recent regression on array aggregate with dynamic subtype

This prevents either a crash or an assertion failure in gigi on an array
with dynamic subtype that is wrongly flagged as static by the front-end
because of a recent improvement made in the handling of nested
aggregates.

The patch reuses the existing Static_Array_Aggregate predicate instead
of fixing the problematic test, pluging a few loopholes in the process.
The predicate is conservatively correct but should be good enough in
practice.

2018-12-03  Eric Botcazou  <ebotcazou@adacore.com>

gcc/ada/

* exp_aggr.adb (Convert_To_Positional): Use
Static_Array_Aggregate to decide whether to set
Compile_Time_Known_Aggregate on an already flat aggregate.
(Expand_Array_Aggregate): Remove test on
Compile_Time_Known_Aggregate that turns out to be dead and
simplify.
(Is_Static_Component): New predicate extracted from...
(Static_Array_Aggregate): ...here.  Test neither Is_Tagged_Type
nor Is_Controlled for the type, but test whether the component
type has discriminants.  Use the Is_Static_Component predicate
consistently for the positional and named cases.

gcc/testsuite/

* gnat.dg/array32.adb, gnat.dg/array32.ads: New testcase.

From-SVN: r266755

5 years ago[Ada] Fix internal error on package instantiation on private type
Eric Botcazou [Mon, 3 Dec 2018 15:49:17 +0000 (15:49 +0000)]
[Ada] Fix internal error on package instantiation on private type

This fixes an assertion failure in gigi triggered by the instantiation
of a generic package, in a visible part of another package, done on a
private type whose full view is a type derived from a scalar or an
access type.

The problem is that the front-end creates and inserts two different
freeze nodes in the expanded tree for the partial and the full views of
the private subtype created by the instantiation, which is not correct:
partial and full views of a given (sub)type must point to the same
freeze node, if any.

The patch also adds an assertion checking this property in the front-end
so as to catch the inconsistency higher in the chain.

2018-12-03  Eric Botcazou  <ebotcazou@adacore.com>

gcc/ada/

* freeze.adb (Freeze_Entity): Do not freeze the partial view of
a private subtype if its base type is also private with delayed
freeze before the full type declaration of the base type has
been seen.
* sem_ch7.adb (Preserve_Full_Attributes): Add assertion on
freeze node.

gcc/testsuite/

* gnat.dg/generic_inst2.adb, gnat.dg/generic_inst2.ads,
gnat.dg/generic_inst2_c.ads: New testcase.

From-SVN: r266754

5 years ago[Ada] Fix problematic overloading of operator in Ada 95 mode
Eric Botcazou [Mon, 3 Dec 2018 15:49:12 +0000 (15:49 +0000)]
[Ada] Fix problematic overloading of operator in Ada 95 mode

The change reverts the test deciding whether an initialization procedure
can be inherited from parent to derived type to the original
implementation, which allowed inheriting a null procedure.

This prevents the creation of another null initialization procedure for
the derived type, which in turn can avoid an artificial overloading
which can wreak havoc in the analysis of private declarations of a
package.

2018-12-03  Eric Botcazou  <ebotcazou@adacore.com>

gcc/ada/

* exp_ch3.adb (Build_Record_Init_Proc): Inherit an
initialization procedure if it is present, even if it is null.

gcc/testsuite/

* gnat.dg/overload2.adb, gnat.dg/overload2_p.adb,
gnat.dg/overload2_p.ads, gnat.dg/overload2_q.adb,
gnat.dg/overload2_q.ads: New testcase.

From-SVN: r266753

5 years ago[Ada] A task not executing an entry call consumes an Entry_Call slot
Patrick Bernardi [Mon, 3 Dec 2018 15:49:06 +0000 (15:49 +0000)]
[Ada] A task not executing an entry call consumes an Entry_Call slot

This patch resolves the issue where the ATC Level of a task's first
Entry_Call slot corresponds to a task not currently making an entry
call. Consequently, the first slot is never used to record an entry
call. To resolve this, the ATC Level of a such a task is now one less
than the first index of the Entry_Call array (and as result, the ATC
level corresponding to a completed task is now two less than the first
index of this array).

To aid the maintainability of code using ATC levels new constants are
introduced to represent key ATC nesting levels and comments are
introduce for the ATC level definitions.

As a result of this change, the GNAT Extended Ravenscar Profile now
works with the full runtime. The restricted runtime had assumed that the
first Entry_Call slot would be the only slot used for entry calls and
would only initialise this slot (and
System.Tasking.Protected_Objects.Single_Entry was coded this way).
However, Extended Ravenscar uses the native implementation of
System.Tasking.Protected_Objects where this assumption doesn't hold
until the implementation of this patch. Aside from enabling an extra
nested level, this is main functional change of this patch.

The following should compile and execute quietly:

gprbuild -q main.adb
./main

-- main.adb

pragma Profile (GNAT_Extended_Ravenscar);
pragma Partition_Elaboration_Policy (Sequential);

with Tasks;
with GNAT.OS_Lib;
with Ada.Synchronous_Task_Control;

procedure Main is
   pragma Priority (30);
begin
   Ada.Synchronous_Task_Control.Suspend_Until_True (Tasks.A_SO);
   Ada.Synchronous_Task_Control.Suspend_Until_True (Tasks.B_SO);

   GNAT.OS_Lib.OS_Exit (0);
end Main;

-- tasks.ads

with Ada.Synchronous_Task_Control;

package Tasks is
   A_SO : Ada.Synchronous_Task_Control.Suspension_Object;
   B_SO : Ada.Synchronous_Task_Control.Suspension_Object;

   task A with Priority => 25;
   task B with Priority => 20;
end Tasks;

--  tasks.adb

with Obj;

package body Tasks is

   task body A is
   begin
      for J in 1 .. 5 loop
         Obj.PO.Wait;
      end loop;
      Ada.Synchronous_Task_Control.Set_True (Tasks.A_SO);
   end A;

   task body B is
   begin
      for J in 1 .. 5 loop
         Obj.PO.Put;
      end loop;
      Ada.Synchronous_Task_Control.Set_True (Tasks.B_SO);
   end B;
end Tasks;

-- obj.ads

package Obj is
   protected type PT is
      pragma Priority (30);
      entry Put;
      entry Wait;
   private
      Wait_Ready : Boolean := False;
      Put_Ready  : Boolean := True;
   end PT;

   PO : PT;
end Obj;

-- obj.adb

package body Obj is
   protected body PT is
      entry Put when Put_Ready is
      begin
         Wait_Ready := True;
         Put_Ready  := False;
      end Put;

      entry Wait when Wait_Ready is
      begin
         Wait_Ready := False;
         Put_Ready  := True;
      end Wait;
   end PT;
end Obj;

2018-12-03  Patrick Bernardi  <bernardi@adacore.com>

gcc/ada/

* libgnarl/s-taskin.ads (ATC_Level_Base): Redefine to span from
-1 to Max_ATC_Nesting so that 0 represents no ATC nesting and -1
represented a completed task. To increase readability, new
constants are introduced to represent key ATC nesting levels.
Consequently, Level_No_Pending_Abort replaces
ATC_Level_Infinity.  ATC_Level related definitions now
documented.
(Ada_Task_Control_Block): The default initialization of
components ATC_Nesting_Level and Pending_ATC_Level now use new
ATC_Level_Base constants.  Comments improved
* libgnarl/s-taskin.adb (Initialize): Improve the initialisation
of the first element of the Entry_Calls array to facilitate
better maintenance.
* libgnarl/s-taasde.ads: Update comment.
* libgnarl/s-taasde.adb, libgnarl/s-taenca.adb,
libgnarl/s-tasren.adb, libgnarl/s-tassta.adb,
libgnarl/s-tasuti.ads, libgnarl/s-tasuti.adb: Use new
ATC_Level_Base constants.
* libgnarl/s-tarest.adb (Create_Restricted_Task): Improve the
initialisation of the first element of the task's Entry_Calls
array to facilitate better maintenance.
* libgnarl/s-tasini.ads (Locked_Abort_To_Level): Update
signature to accept ATC_Level_Base.
* libgnarl/s-tasini.adb (Locked_Abort_To_Level): Update
signature to accept ATC_Level_Base.  Use new ATC_Level_Base
constants and only modify the aborting task's Entry_Calls array
if any entry call is happening.
* libgnarl/s-tposen.adb (Protected_Single_Entry_Call): Reference
the first element of the task's Entry_Calls array via 'First
attribute to facilitate better maintenance.

From-SVN: r266752

5 years ago[Ada] Fix assertion failures with -gnatde and -gnatdv
Eric Botcazou [Mon, 3 Dec 2018 15:49:00 +0000 (15:49 +0000)]
[Ada] Fix assertion failures with -gnatde and -gnatdv

This fixes a couple of assertion failures when using -gnatde and -gnatdv
on a compiler built with assertions enabled.  No functional changes.

2018-12-03  Eric Botcazou  <ebotcazou@adacore.com>

gcc/ada/

* einfo.adb (Write_Entity_Info): Don't take Scope of Standard
package.
* sem_ch4.adb (Remove_Abstract_Operations): Add missing blank
lines to -gnatdv output.
* sem_type.adb (Write_Overloads): Take Entity of entity names
only.

From-SVN: r266751

5 years ago[Ada] Minor reformattings
Hristian Kirtchev [Mon, 3 Dec 2018 15:48:34 +0000 (15:48 +0000)]
[Ada] Minor reformattings

2018-12-03  Hristian Kirtchev  <kirtchev@adacore.com>

gcc/ada/

* checks.adb, exp_aggr.adb, exp_attr.adb, exp_ch3.adb,
exp_util.adb, exp_util.ads, repinfo.adb, sem_attr.adb,
sem_ch3.adb, sem_res.adb, sem_util.adb: Minor reformatting.

From-SVN: r266750

5 years ago[Ada] Enhance comment
Ed Schonberg [Mon, 3 Dec 2018 15:48:03 +0000 (15:48 +0000)]
[Ada] Enhance comment

2018-12-03  Ed Schonberg  <schonberg@adacore.com>

gcc/ada/

* sem_ch3.adb (Complete_Private_Subtype): Enhance comment.

From-SVN: r266749

5 years ago[Ada] Gigi support for OpenACC pragmas
Olivier Hainque [Mon, 3 Dec 2018 15:47:57 +0000 (15:47 +0000)]
[Ada] Gigi support for OpenACC pragmas

Matching front-end bits to support Acc_Kernels, Acc_Parallel,
Acc_Loop and Acc_Data.

2018-12-03  Olivier Hainque  <hainque@adacore.com>

gcc/ada/

* gcc-interface/lang.opt (fopenacc): New option for Ada.
* gcc-interface/misc.c (gnat_handle_option): Handle it.
* gcc-interface/trans.c (struct loop_info_d): Add OMP
attributes.
(Iterate_Acc_Clause_Arg, Acc_gnat_to_gnu): New functions,
helpers for OpenACC pragmas processing in Pragma_to_gnu.
(Acc_Var_to_gnu, Acc_Reduc_Var_to_gnu, Acc_Reduc_to_gnu):
Likewise.
(Acc_Size_Expr_to_gnu, Acc_Size_List_to_gnu): Likewise.
(Pragma_Acc_Data_to_gnu): Likewise.
(Pragma_to_gnu): Handle Pragma_Acc_Loop, Pragma_Acc_Data,
Pragma_Acc_Kernels and Pragma_Acc_Parallel.
(Acc_Loop_to_gnu, Regular_Loop_to_gnu): New functions. Helpers
for ...
(Loop_Statement_to_gnu): Rework to handle OpenACC loops.

From-SVN: r266748

5 years ago[Ada] Adjust the default MALLOC_OBSERVABLE_ALIGNMENT to 2 * POINTER_SIZE
Olivier Hainque [Mon, 3 Dec 2018 15:47:52 +0000 (15:47 +0000)]
[Ada] Adjust the default MALLOC_OBSERVABLE_ALIGNMENT to 2 * POINTER_SIZE

Instead of 2 * LONG_TYPE_SIZE. POINTER_SIZE is believed to be the
correct base on more configurations than LONG_TYPE_SIZE and this
adjustment prevents the need for local patches to compensate on
configurations where the latter is inappropriate, for example
x86_64-mingw.

2018-12-03  Olivier Hainque  <hainque@adacore.com>

gcc/ada/

* gcc-interface/targtyps.c (MALLOC_OBSERVABLE_ALIGNMENT): Set to
2 * POINTER_SIZE.

From-SVN: r266747

5 years ago[Ada] Missing check on if-expression
Ed Schonberg [Mon, 3 Dec 2018 15:46:23 +0000 (15:46 +0000)]
[Ada] Missing check on if-expression

This patch fixes a constraint check on a dependent expression of an
if-expression, when the context if given by a slice or the 'Range of
an array. The constraint check is applied if the context is constrained,
but the corresponding flag was not set for the index subtype generated
for a slice (explicit or implicit).

Executing:
   gprbuild -P test -q main
   ./main

Must yield:
   raised CONSTRAINT_ERROR : foo.ads:13 range check failed

----
with Types;
generic
   Buffer : in out Types.Buffer;
package Foo
is
   function Get (Pos : Natural) return Integer;

private
   function Get (Pos : Natural) return Integer
   is (Buffer ((if Pos in Buffer'Range then Pos else Buffer'First)));
end Foo;
----
with Foo;
with Types;
with Usefoo;

procedure Main is
   Z : Types.Buffer := (Natural'Last .. Natural'Last - 1 => 0);
   R : Integer;
begin
   Usefoo.Do_Something (Z, R);
end Main;
----
pragma SPARK_Mode (On);
pragma Profile (Ravenscar);
pragma Partition_Elaboration_Policy (Sequential);
----
project Test is
  package Compiler is
    for Default_Switches ("Ada") use ("-gnatws");
    for Local_Configuration_Pragmas use "test.adc";
  end Compiler;
end Test;
----
package Types
is
   subtype Natural_Without_Last is Natural range 1 .. Natural'Last - 1;
   type Buffer is array (Natural_Without_Last range <>) of Integer;

end Types;
----
with Foo;

package body Usefoo
is

   procedure Do_Something (B : in out Types.Buffer;
                           R : out Integer)
   is
      package F is new Foo (B (B'First .. B'First + B'Length / 2 - 1));
   begin
      R := F.Get (B'First + B'Length / 2 - 1);
   end Do_Something;

end Usefoo;
----
with Types;

package Usefoo
is

   procedure Do_Something (B : in out Types.Buffer;
                           R : out Integer)
                           with Pre => B'First > 0;

end Usefoo;

2018-12-03  Ed Schonberg  <schonberg@adacore.com>

gcc/ada/

* sem_res.adb (Set_Slice_Subtype): The index type of a slice is
constrained.

From-SVN: r266746

5 years agore PR fortran/87919 (Incorrect fortran handling of -fno-* options)
Fritz Reese [Mon, 3 Dec 2018 15:42:51 +0000 (15:42 +0000)]
re PR fortran/87919 (Incorrect fortran handling of -fno-* options)

2018-12-03  Fritz Reese  <fritzoreese@gmail.com>
            Mark Eggleston <mark.eggleston@codethink.co.uk>

    PR fortran/87919

    gcc/fortran/ChangeLog:

PR fortran/87919
* options.c (SET_FLAG, SET_BITFLAG, SET_BITFLAG2): New macros.
(set_dec_flags): Set/unset DEC and std flags according to value.
(set_init_local_zero): New helper for -finit-local-zero flag group.
(gfc_init_options): Fix disabling of init flags, array temporaries
check, and dec flags when value is zero (from -fno-*).

    gcc/testsuite/ChangeLog:

PR fortran/87919
* gfortran.dg/array_temporaries_5.f90: New test.
* gfortran.dg/dec_bitwise_ops_3.f90: Ditto.
* gfortran.dg/dec_d_lines_3.f: Ditto.
* gfortran.dg/dec_exp_4.f90: Ditto.
* gfortran.dg/dec_exp_5.f90: Ditto.
* gfortran.dg/dec_io_7.f90: Ditto.
* gfortran.dg/dec_structure_24.f90: Ditto.
* gfortran.dg/dec_structure_25.f90: Ditto.
* gfortran.dg/dec_structure_26.f90: Ditto.
* gfortran.dg/dec_structure_27.f90: Ditto.
* gfortran.dg/dec_type_print_3.f90: Ditto.
* gfortran.dg/init_flag_20.f90: Ditto.

Co-Authored-By: Mark Eggleston <mark.eggleston@codethink.co.uk>
From-SVN: r266745

5 years agoh8300.md (low byte masking peepholes): Only accept nonimmediate_operand for the to...
Jeff Law [Mon, 3 Dec 2018 15:21:15 +0000 (08:21 -0700)]
h8300.md (low byte masking peepholes): Only accept nonimmediate_operand for the to-be-masked operand.

* config/h8300/h8300.md (low byte masking peepholes): Only accept
nonimmediate_operand for the to-be-masked operand.

From-SVN: r266744

5 years agopr59963-2.c: Make testnames unique.
Jeff Law [Mon, 3 Dec 2018 15:17:03 +0000 (08:17 -0700)]
pr59963-2.c: Make testnames unique.

* gcc.dg/pr59963-2.c: Make testnames unique.
* gcc.dg/tree-ssa/builtin-sprintf-warn-18.c: Likewise.

From-SVN: r266743

5 years agotree-ssa-sccvn.c (eliminate_dom_walker::eliminate_stmt): Only allow expected function...
Richard Biener [Mon, 3 Dec 2018 15:13:04 +0000 (15:13 +0000)]
tree-ssa-sccvn.c (eliminate_dom_walker::eliminate_stmt): Only allow expected function-pointer cast re-instantiation.

2018-12-03  Richard Biener  <rguenther@suse.de>

* tree-ssa-sccvn.c (eliminate_dom_walker::eliminate_stmt): Only
allow expected function-pointer cast re-instantiation.

From-SVN: r266742

5 years agoS/390: Add support for section anchors
Ilya Leoshkevich [Mon, 3 Dec 2018 15:07:36 +0000 (15:07 +0000)]
S/390: Add support for section anchors

gcc/ChangeLog:

2018-12-03  Ilya Leoshkevich  <iii@linux.ibm.com>

* common/config/s390/s390-common.c (s390_option_init_struct):
Use section anchors by default.
* config/s390/s390.c (s390_check_symref_alignment): Handle
anchors.
(TARGET_MAX_ANCHOR_OFFSET): Use short displacement.
* output.h (assemble_align): Pass `align' as unsigned int, so
that the value 0x80000000, which corresponds to `aligned(1 <<
28)', would pass the `align > BITS_PER_UNIT' check.
* varasm.c (assemble_align): Likewise.

gcc/testsuite/ChangeLog:

2018-12-03  Ilya Leoshkevich  <iii@linux.ibm.com>

* gcc.target/s390/nodatarel-1.c: Expect .LANCHOR0@GOTENT instead
of a@GOTENT.
* gcc.target/s390/section-anchors.c: New test.
* gcc.target/s390/section-anchors2.c: New test.
* gcc.target/s390/section-anchors3.c: New test.

From-SVN: r266741

5 years agoFix infinite recursion in OMP clause pretty-printing, default label
Julian Brown [Mon, 3 Dec 2018 13:46:19 +0000 (13:46 +0000)]
Fix infinite recursion in OMP clause pretty-printing, default label

gcc/
* tree-pretty-print.c (dump_omp_clause): Make default case
gcc_unreachable.

From-SVN: r266740

5 years agore PR tree-optimization/88301 (Optimization regression with undefined unsigned overflow)
Richard Biener [Mon, 3 Dec 2018 13:38:20 +0000 (13:38 +0000)]
re PR tree-optimization/88301 (Optimization regression with undefined unsigned overflow)

2018-12-03  Richard Biener  <rguenther@suse.de>

PR tree-optimization/88301
* tree-vrp.c (register_edge_assert_for_2): Handle conversions
that do not change the value by registering the same assert
for the operand.

* gcc.dg/tree-ssa/evrp13.c: New testcase.

From-SVN: r266739

5 years agore PR tree-optimization/71109 (gcc ICE at -O3 on valid code on x86_64-linux-gnu in...
Jakub Jelinek [Mon, 3 Dec 2018 13:30:41 +0000 (14:30 +0100)]
re PR tree-optimization/71109 (gcc ICE at -O3 on valid code on x86_64-linux-gnu in "maybe_record_trace_start")

PR tree-optimization/71109
* gcc.c-torture/compile/pr71109.c: New test.

From-SVN: r266738

5 years agotree-vect-loop.c (vect_transform_loop): Properly compute upper bound for the epilogue...
Richard Biener [Mon, 3 Dec 2018 13:24:08 +0000 (13:24 +0000)]
tree-vect-loop.c (vect_transform_loop): Properly compute upper bound for the epilogue when doing epilogue vectorization.

2018-12-03  Richard Biener  <rguenther@suse.de>

* tree-vect-loop.c (vect_transform_loop): Properly compute
upper bound for the epilogue when doing epilogue vectorization.

From-SVN: r266737

5 years agore PR target/88287 (aarch64/sve/vcond_1.C fails since r266620)
Jakub Jelinek [Mon, 3 Dec 2018 13:04:57 +0000 (14:04 +0100)]
re PR target/88287 (aarch64/sve/vcond_1.C fails since r266620)

PR target/88287
* g++.target/aarch64/sve/vcond_1.C: Adjust for comparison
canonicalization.

From-SVN: r266736

5 years agoRepeat jump threading after combine
Ilya Leoshkevich [Mon, 3 Dec 2018 09:49:02 +0000 (09:49 +0000)]
Repeat jump threading after combine

Consider the following RTL:

(insn (set (reg 65) (if_then_else (eq %cc 0) 1 0)))
(insn (parallel [(set %cc (compare (reg 65) 0)) (clobber %scratch)]))
(jump_insn (set %pc (if_then_else (ne %cc 0) (label_ref 23) %pc)))

Combine simplifies this into:

(note NOTE_INSN_DELETED)
(note NOTE_INSN_DELETED)
(jump_insn (set %pc (if_then_else (eq %cc 0) (label_ref 23) %pc)))

opening up the possibility to perform jump threading.

gcc/ChangeLog:

2018-12-03  Ilya Leoshkevich  <iii@linux.ibm.com>

PR target/80080
* cfgcleanup.c (class pass_postreload_jump): New pass.
(pass_postreload_jump::execute): Likewise.
(make_pass_postreload_jump): Likewise.
* passes.def: Add pass_postreload_jump before
pass_postreload_cse.
* tree-pass.h (make_pass_postreload_jump): New pass.

gcc/testsuite/ChangeLog:

2018-12-03  Ilya Leoshkevich  <iii@linux.ibm.com>

PR target/80080
* gcc.target/s390/pr80080-4.c: New test.

From-SVN: r266734

5 years agoMark x86_64 only tests as such.
Andi Kleen [Mon, 3 Dec 2018 01:06:56 +0000 (01:06 +0000)]
Mark x86_64 only tests as such.

2018-12-02  Andi Kleen  <ak@linux.intel.com>

* gcc.target/i386/returninst1.c: Run on 64bit only.
* gcc.target/i386/returninst2.c: Dito.
* gcc.target/i386/returninst3.c: Dito.

From-SVN: r266733

5 years agoDaily bump.
GCC Administrator [Mon, 3 Dec 2018 00:16:24 +0000 (00:16 +0000)]
Daily bump.

From-SVN: r266732

5 years agoi386.c (inline_memory_move_cost): Correctly compute number of TFmode GPR moves.
Uros Bizjak [Sun, 2 Dec 2018 22:21:37 +0000 (23:21 +0100)]
i386.c (inline_memory_move_cost): Correctly compute number of TFmode GPR moves.

* config/i386/i386.c (inline_memory_move_cost): Correctly
compute number of TFmode GPR moves.

From-SVN: r266729

5 years agore PR target/88278 (Fails to elide zeroing of upper vector register)
Jakub Jelinek [Sun, 2 Dec 2018 20:43:49 +0000 (21:43 +0100)]
re PR target/88278 (Fails to elide zeroing of upper vector register)

PR target/88278
* config/i386/sse.md (*vec_concatv4sf_0, *vec_concatv4si_0): New insns.

* gcc.target/i386/pr88278.c: New test.
* gcc.target/i386/pr53759.c: Don't expect vmovlps insn, expect vmovq
instead.
* gcc.target/i386/pr53759-2.c: New test.

From-SVN: r266728

5 years agoh8300.md (call, call_value): Drop mode from operand containing number of bytes pushed.
Jeff Law [Sun, 2 Dec 2018 18:31:44 +0000 (11:31 -0700)]
h8300.md (call, call_value): Drop mode from operand containing number of bytes pushed.

* config/h8300/h8300.md (call, call_value): Drop mode from
operand containing number of bytes pushed.
(call_insn, call_value_insn): Use mode iterator for number
of bytes pushed operand.  Make pattern name vary appropriately.

From-SVN: r266727

5 years agobb-reorer.c (find_rarely_executed_basic_blocks_and_crossin_edges): trust precise...
Jan Hubicka [Sun, 2 Dec 2018 15:39:45 +0000 (16:39 +0100)]
bb-reorer.c (find_rarely_executed_basic_blocks_and_crossin_edges): trust precise profiles.

* bb-reorer.c (find_rarely_executed_basic_blocks_and_crossin_edges):
trust precise profiles.

From-SVN: r266726

5 years agoUse atomic load/store to access static backtrace state pointer
Janne Blomqvist [Sun, 2 Dec 2018 15:12:44 +0000 (17:12 +0200)]
Use atomic load/store to access static backtrace state pointer

As the static backtrace state pointer can be accessed from multiple
threads, use atomics to access it.

Regtested on x86_64-pc-linux-gnu.

libgfortran/ChangeLog:

2018-12-02  Janne Blomqvist  <jb@gcc.gnu.org>

PR libfortran/88137
* runtime/backtrace.c (show_backtrace): Use atomic load/store to
access the static lbstate pointer.

From-SVN: r266724

5 years agotree-nested.c (convert_nonlocal_omp_clauses, [...]): Handle OMP_CLAUSE_IN_REDUCTION...
Jakub Jelinek [Sun, 2 Dec 2018 12:50:50 +0000 (13:50 +0100)]
tree-nested.c (convert_nonlocal_omp_clauses, [...]): Handle OMP_CLAUSE_IN_REDUCTION...

* tree-nested.c (convert_nonlocal_omp_clauses,
convert_local_omp_clauses): Handle OMP_CLAUSE_IN_REDUCTION,
OMP_CLAUSE_TASK_REDUCTION and OMP_CLAUSE__SIMT_ clauses.
(convert_nonlocal_reference_stmt, convert_local_reference_stmt):
Convert clauses for GIMPLE_OMP_TASKGROUP.

* testsuite/libgomp.c/task-reduction-3.c: New test.

From-SVN: r266723

5 years agoomp-low.c (check_omp_nesting_restrictions): Allow cancel or cancellation point with...
Jakub Jelinek [Sun, 2 Dec 2018 12:48:42 +0000 (13:48 +0100)]
omp-low.c (check_omp_nesting_restrictions): Allow cancel or cancellation point with taskgroup clause inside of taskloop.

* omp-low.c (check_omp_nesting_restrictions): Allow cancel or
cancellation point with taskgroup clause inside of taskloop.  Consider
a taskloop construct without nogroup clause as implicit taskgroup for
diagnostics if cancel/cancellation point with taskgroup clause is
closely nested inside of taskgroup region.

* c-c++-common/gomp/cancel-1.c (f2): Add various taskloop related
tests.

* testsuite/libgomp.c-c++-common/cancel-taskgroup-4.c: New test.

From-SVN: r266722

5 years agore PR sanitizer/88291 (asan ICE in asan_clear_shadow)
Jakub Jelinek [Sun, 2 Dec 2018 12:39:26 +0000 (13:39 +0100)]
re PR sanitizer/88291 (asan ICE in asan_clear_shadow)

PR sanitizer/88291
* asan.c (asan_clear_shadow): Move assert that len is multiple of 4
to the start of the function.
(asan_emit_stack_protection): When emitting clearing sequence for
epilogue, align offset down to ASAN_RED_ZONE_SIZE granularity,
add last_size_aligned which is last_size padded to multiples of
ASAN_RED_ZONE_SIZE and emit asan_clear_shadow always on 4 byte
boundaries.

* c-c++-common/asan/pr88291.c: New test.

From-SVN: r266721

5 years agore PR c++/88258 (Infinite loop emitting diagnostics in the C++ front-end)
Jakub Jelinek [Sun, 2 Dec 2018 12:38:20 +0000 (13:38 +0100)]
re PR c++/88258 (Infinite loop emitting diagnostics in the C++ front-end)

PR c++/88258
* parser.c (cp_parser_skip_to_closing_parenthesis_1,
cp_parser_skip_to_end_of_statement,
cp_parser_skip_to_end_of_block_or_statement,
cp_parser_skip_to_closing_brace,
cp_parser_skip_to_closing_square_bracket,
cp_parser_skip_balanced_tokens): Don't treat CPP_PRAGMA_EOL specially
if in_pragma is false.

* g++.dg/gomp/pr88258.C: New test.

From-SVN: r266720

5 years agoMerge dmd upstream 5220ad51e
Iain Buclaw [Sun, 2 Dec 2018 11:47:49 +0000 (11:47 +0000)]
Merge dmd upstream 5220ad51e

Backports Ddoc fix that is present in upstream, but did not make its way
into the C++ port of the D front-end implementation.

The old special types for C long, unsigned long, and long double have
also been removed as neither the compiler nor druntime bindings support
handling it anymore.

Commits merged from dmd.

Backport Issue 14633: Fixed false DDoc warnings
https://github.com/dlang/dmd/pull/9027

Remove old support code for struct __c_long/ulong/long_double
https://github.com/dlang/dmd/pull/9028

From-SVN: r266719

5 years agoDaily bump.
GCC Administrator [Sun, 2 Dec 2018 00:16:22 +0000 (00:16 +0000)]
Daily bump.

From-SVN: r266717

5 years agore PR c++/87523 (ICE: Closures apparently fail to capture constexpr)
Marek Polacek [Sat, 1 Dec 2018 21:53:07 +0000 (21:53 +0000)]
re PR c++/87523 (ICE: Closures apparently fail to capture constexpr)

PR c++/87523
* g++.dg/cpp1y/lambda-generic-87523.C: New test.

From-SVN: r266714

5 years agolibphobos: Add support for RISCV to glibc bindings
Iain Buclaw [Sat, 1 Dec 2018 21:48:43 +0000 (21:48 +0000)]
libphobos: Add support for RISCV to glibc bindings

Backported from upstream druntime master.

Reviewed-on: https://github.com/dlang/druntime/pull/2355

From-SVN: r266713

5 years agore PR c++/79629 (ICE on invalid code in tsubst_copy, at cp/pt.c:14477)
Marek Polacek [Sat, 1 Dec 2018 21:32:16 +0000 (21:32 +0000)]
re PR c++/79629 (ICE on invalid code in tsubst_copy, at cp/pt.c:14477)

PR c++/79629
* g++.dg/other/error35.C: New test.

From-SVN: r266712

5 years agore PR c++/83856 (ICE in tsubst_copy;)
Marek Polacek [Sat, 1 Dec 2018 21:09:31 +0000 (21:09 +0000)]
re PR c++/83856 (ICE in tsubst_copy;)

PR c++/83856
* g++.dg/cpp1y/lambda-generic-83856.C: New test.

From-SVN: r266711

5 years agoImplement P0634R3, Down with typename!
Marek Polacek [Sat, 1 Dec 2018 17:56:27 +0000 (17:56 +0000)]
Implement P0634R3, Down with typename!

* parser.c (CP_PARSER_FLAGS_TYPENAME_OPTIONAL): New enumerator.
(cp_parser_type_name): Remove declaration.
(cp_parser_postfix_expression): Pass CP_PARSER_FLAGS_TYPENAME_OPTIONAL
to cp_parser_type_id.
(cp_parser_new_type_id): Pass CP_PARSER_FLAGS_TYPENAME_OPTIONAL to
cp_parser_type_specifier_seq.
(cp_parser_lambda_declarator_opt): Pass
CP_PARSER_FLAGS_TYPENAME_OPTIONAL to
cp_parser_parameter_declaration_clause.
(cp_parser_condition): Pass CP_PARSER_FLAGS_NONE to
cp_parser_declarator.
(cp_parser_simple_declaration): Pass CP_PARSER_FLAGS_NONE to
cp_parser_init_declarator.
(cp_parser_conversion_type_id): Pass CP_PARSER_FLAGS_NONE to
cp_parser_type_specifier_seq.
(cp_parser_default_type_template_argument): Pass
CP_PARSER_FLAGS_TYPENAME_OPTIONAL to cp_parser_type_id.
(cp_parser_template_parameter): Pass CP_PARSER_FLAGS_TYPENAME_OPTIONAL
to cp_parser_parameter_declaration.
(cp_parser_explicit_instantiation): Pass CP_PARSER_FLAGS_NONE to
cp_parser_declarator.
(cp_parser_simple_type_specifier): Adjust call to cp_parser_type_name
to relay if we should treat the typename keyword as optional.  Maybe
call cp_parser_make_typename_type is parsing a template-id and it's
not a TYPE_DECL.
(cp_parser_type_name): Remove unused function.
(cp_parser_enum_specifier): Pass to CP_PARSER_FLAGS_NONE
cp_parser_type_specifier_seq.
(cp_parser_alias_declaration): Pass CP_PARSER_FLAGS_TYPENAME_OPTIONAL
to cp_parser_type_id.
(cp_parser_init_declarator): New parameter.  Pass it down to
cp_parser_declarator.
(cp_parser_declarator): New parameter.  Pass CP_PARSER_FLAGS_NONE to
cp_parser_declarator.  Pass the new parameter to
cp_parser_direct_declarator.
(cp_parser_direct_declarator): New parameter.  Pass it to
cp_parser_parameter_declaration_clause and cp_parser_declarator.
(cp_parser_declarator_id):
(cp_parser_type_id_1): New parameter.  Pass it to
cp_parser_type_specifier_seq.  Adjust call to cp_parser_declarator.
(cp_parser_type_id): New parameter.  Pass it to cp_parser_type_id_1.
(cp_parser_template_type_arg): Pass CP_PARSER_FLAGS_NONE to
cp_parser_type_id_1.
(cp_parser_trailing_type_id): Pass CP_PARSER_FLAGS_TYPENAME_OPTIONAL
to cp_parser_type_id_1.
(cp_parser_type_specifier_seq): New parameter.
(function_being_declared_is_template_p):
(cp_parser_parameter_declaration_clause): New parameter.  Pass it to
cp_parser_parameter_declaration_list.
(cp_parser_parameter_declaration_list): New parameter.  Pass it to
cp_parser_parameter_declaration.
(cp_parser_parameter_declaration): New parameter.  Pass it to
cp_parser_decl_specifier_seq.  Pass CP_PARSER_FLAGS_NONE to
cp_parser_declarator.
(cp_parser_member_declaration): Adjust call to
cp_parser_decl_specifier_seq to also include
CP_PARSER_FLAGS_TYPENAME_OPTIONAL.  Pass
CP_PARSER_FLAGS_TYPENAME_OPTIONAL to cp_parser_declarator.
(cp_parser_exception_declaration): Pass CP_PARSER_FLAGS_NONE to
cp_parser_type_specifier_seq and cp_parser_declarator.
(cp_parser_requirement_parameter_list): Pass CP_PARSER_FLAGS_NONE to
cp_parser_parameter_declaration_clause.
(cp_parser_constructor_declarator_p): Resolve the TYPENAME_TYPE.
(cp_parser_single_declaration): Pass CP_PARSER_FLAGS_TYPENAME_OPTIONAL
to cp_parser_decl_specifier_seq and cp_parser_init_declarator.
(cp_parser_cache_defarg): Pass CP_PARSER_FLAGS_NONE to
cp_parser_declarator and cp_parser_parameter_declaration_list.
(cp_parser_objc_method_tail_params_opt): Pass CP_PARSER_FLAGS_NONE to
cp_parser_parameter_declaration.
(cp_parser_objc_class_ivars): Pass CP_PARSER_FLAGS_NONE to
cp_parser_declarator.
(cp_parser_objc_try_catch_finally_statement): Pass CP_PARSER_FLAGS_NONE
to cp_parser_parameter_declaration
(cp_parser_objc_struct_declaration): Pass CP_PARSER_FLAGS_NONE to
cp_parser_declarator.
(cp_parser_omp_for_loop_init): Pass CP_PARSER_FLAGS_NONE to
cp_parser_declarator and cp_parser_type_specifier_seq.

* g++.dg/cpp0x/alias-decl-43.C: Adjust dg-error.
* g++.dg/cpp0x/decltype67.C: Only expect error in c++17_down.
* g++.dg/cpp1z/typename1.C: New test.
* g++.dg/cpp2a/typename1.C: New test.
* g++.dg/cpp2a/typename10.C: New test.
* g++.dg/cpp2a/typename11.C: New test.
* g++.dg/cpp2a/typename2.C: New test.
* g++.dg/cpp2a/typename3.C: New test.
* g++.dg/cpp2a/typename4.C: New test.
* g++.dg/cpp2a/typename5.C: New test.
* g++.dg/cpp2a/typename6.C: New test.
* g++.dg/cpp2a/typename7.C: New test.
* g++.dg/cpp2a/typename8.C: New test.
* g++.dg/cpp2a/typename9.C: New test.
* g++.dg/diagnostic/missing-typename.C: Only run the test in
c++17_down.
* g++.dg/other/crash-9.C: Add template disambiguator.
* g++.dg/other/nontype-1.C: Only expect error in c++17_down.
* g++.dg/parse/crash13.C: Likewise.
* g++.dg/parse/error36.C: Likewise.
* g++.dg/parse/no-typename1.C: Likewise.
* g++.dg/parse/typedef2.C: Likewise.
* g++.dg/parse/typename11.C: Likewise.
* g++.dg/template/crash48.C: Adjust dg-error.
* g++.dg/template/dependent-name5.C: Only expect error in c++17_down.
Add dg-error.
* g++.dg/template/error29.C: Only expect error in c++17_down.
* g++.dg/template/nested5.C: Add template disambiguator.
* g++.dg/template/pr84789.C: Only expect error in c++17_down.
* g++.dg/template/static30.C: Add dg-error.
* g++.dg/template/typedef6.C: Adjust dg-error.
* g++.dg/template/typename3.C: Only expect error in c++17_down.

From-SVN: r266710

5 years ago* gcc.dg/predict-22.c: Update expected output.
Jeff Law [Sat, 1 Dec 2018 16:52:22 +0000 (09:52 -0700)]
* gcc.dg/predict-22.c: Update expected output.

From-SVN: r266709

5 years agore PR sanitizer/88289 (r266664 causes asan to fail on many/most tests on BE)
Jakub Jelinek [Sat, 1 Dec 2018 07:31:56 +0000 (08:31 +0100)]
re PR sanitizer/88289 (r266664 causes asan to fail on many/most tests on BE)

PR sanitizer/88289
* asan.c (asan_redzone_buffer::flush_redzone_payload): Fix up
an off-by-one for BYTES_BIG_ENDIAN.

From-SVN: r266708

5 years agore PR target/54589 (struct offset add should be folded into address calculation)
Jakub Jelinek [Sat, 1 Dec 2018 07:27:58 +0000 (08:27 +0100)]
re PR target/54589 (struct offset add should be folded into address calculation)

PR target/54589
* combine.c (find_split_point): For invalid memory address
nonobj + obj + const, if reg + obj + const is valid addressing
mode, split at nonobj.  Use if rather than else if for the
fallback.  Comment fixes.

* gcc.target/i386/pr54589.c: New test.

From-SVN: r266707

5 years agoDaily bump.
GCC Administrator [Sat, 1 Dec 2018 00:16:41 +0000 (00:16 +0000)]
Daily bump.

From-SVN: r266705

5 years agocoverage.c (get_coverage_counts): Use from_function_decl for precise function location.
Indu Bhagat [Fri, 30 Nov 2018 23:54:30 +0000 (23:54 +0000)]
coverage.c (get_coverage_counts): Use from_function_decl for precise function location.

* coverage.c (get_coverage_counts): Use from_function_decl for precise
function location.
* profile-count.c (profile_count::dump): Add handling for precise
profile quality.
* profile.c (compute_branch_probabilities): Rely on exec_counts instead
of profile_info to set profile_status of function.
(branch_prob): Do not set profile_status of function based on
profile_info. Done above based on exec_counts.

From-SVN: r266702

5 years agore PR tree-optimization/88274 (ICE in check, at tree-vrp.c:188)
Jakub Jelinek [Fri, 30 Nov 2018 23:27:23 +0000 (00:27 +0100)]
re PR tree-optimization/88274 (ICE in check, at tree-vrp.c:188)

PR tree-optimization/88274
* tree-ssa-reassoc.c (optimize_range_tests_xor,
optimize_range_tests_diff): If type has smaller precision than
corresponding mode or if it has non-standard min/max, compute
everything in a standard type for the precision.

From-SVN: r266701

5 years agore PR testsuite/85368 (phi-opt-11 test fails on IBM Z)
Jakub Jelinek [Fri, 30 Nov 2018 23:26:41 +0000 (00:26 +0100)]
re PR testsuite/85368 (phi-opt-11 test fails on IBM Z)

PR testsuite/85368
* params.def (PARAM_LOGICAL_OP_NON_SHORT_CIRCUIT): New param.
* tree-ssa-ifcombine.c (ifcombine_ifandif): If
--param logical-op-non-short-circuit is present, override
LOGICAL_OP_NON_SHORT_CIRCUIT value from the param.
* fold-const.c (fold_range_test, fold_truth_andor): Likewise.

* lib/target-supports.exp (logical_op_short_circuit): Remove.
* gcc.dg/builtin-bswap-7.c: Remove logical_op_short_circuit
effective target, drop -mbranch-cost= options from the test and
instead pass --param logical-op-non-short-circuit=0 or
--param logical-op-non-short-circuit=1 depending on what the
tests meant to test.
* gcc.dg/pr21643.c: Likewise.
* gcc.dg/tree-ssa/ssa-ifcombine-ccmp-2.c: Likewise.
* gcc.dg/tree-ssa/phi-opt-11.c: Likewise.
* gcc.dg/tree-ssa/ssa-ifcombine-ccmp-1.c: Likewise.
* gcc.dg/tree-ssa/ssa-dom-thread-4.c: Likewise.
* gcc.dg/tree-ssa/ssa-ifcombine-ccmp-3.c: Likewise.
* gcc.dg/tree-ssa/ssa-thread-14.c: Likewise.
* gcc.dg/tree-ssa/vrp47.c: Likewise.
* gcc.dg/tree-ssa/ssa-dom-thread-11.c: Likewise.
* gcc.dg/tree-ssa/ssa-dom-thread-16.c: Likewise.
* gcc.dg/tree-ssa/ssa-dom-thread-14.c: Likewise.
* gcc.dg/tree-ssa/ssa-ifcombine-ccmp-5.c: Likewise.
* gcc.dg/tree-ssa/vrp87.c: Likewise.
* gcc.dg/tree-ssa/ssa-ifcombine-ccmp-6.c: Likewise.
* gcc.dg/tree-ssa/phi-opt-2.c: Likewise.
* gcc.dg/tree-ssa/ssa-ifcombine-13.c: Likewise.
* gcc.dg/tree-ssa/ssa-thread-11.c: Likewise.
* gcc.dg/tree-ssa/ssa-ifcombine-ccmp-4.c: Likewise.
* gcc.dg/tree-ssa/forwprop-28.c: Likewise.
* gcc.dg/binop-xor1.c: Likewise.
* gcc.dg/pr46309.c: Likewise.
* gcc.dg/tree-ssa/ssa-dom-thread-18.c: New test.
* gcc.dg/tree-ssa/reassoc-32.c: Add
--param logical-op-non-short-circuit=1 to dg-options.
* 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.

From-SVN: r266700

5 years agooptabs.c (expand_binop): Use "machine_mode" rather than "enum machine mode" in most...
Jeff Law [Fri, 30 Nov 2018 23:12:59 +0000 (16:12 -0700)]
optabs.c (expand_binop): Use "machine_mode" rather than "enum machine mode" in most recent change.

* optabs.c (expand_binop): Use "machine_mode" rather than
"enum machine mode" in most recent change.

From-SVN: r266698

5 years agore PR middle-end/64242 (Longjmp expansion incorrect)
Wilco Dijkstra [Fri, 30 Nov 2018 23:06:51 +0000 (23:06 +0000)]
re PR middle-end/64242 (Longjmp expansion incorrect)

PR middle-end/64242
* builtins.c (expand_builtin_longjmp): Use a temporary when restoring
the frame pointer.
(expand_builtin_nonlocal_goto): Likewise.

* gcc.c-torture/execute/pr64242.c: New test.

From-SVN: r266697

5 years agoC++: fix-it hint for missing parentheses
David Malcolm [Fri, 30 Nov 2018 22:51:18 +0000 (22:51 +0000)]
C++: fix-it hint for missing parentheses

Consider:

  class t1
  {
  public:
    double length () const { return m_length; }
  private:
    double m_length;
  };

missing-parens-fixit.C: In function 'bool test_1(const t1&)':
missing-parens-fixit.C:14:15: error: invalid use of member function
  'double t1::length() const' (did you forget the '()' ?)
   14 |   return inst.length > 0.0;
      |          ~~~~~^~~~~~

This patch adds a fix-it hint for the case where the member function
takes no parameters, suggesting the addition of the parentheses:

   14 |   return inst.length > 0.0;
      |          ~~~~~^~~~~~
      |                     ()

so that an IDE can potentially apply the fix.

gcc/cp/ChangeLog:
* typeck2.c: Include "gcc-rich-location.h".
(cxx_incomplete_type_diagnostic): When complaining about possibly
missing parens, add a fix-it hint if the member function takes no
additional params.

gcc/ChangeLog:
* diagnostic-core.h (emit_diagnostic): New decl.
* diagnostic.c (emit_diagnostic): New overload, taking a
rich_location *.

gcc/testsuite/ChangeLog:
* g++.dg/parse/missing-parens-fixit.C: New test.

From-SVN: r266696

5 years agopretty-print.c: add selftest::test_prefixes_and_wrapping
David Malcolm [Fri, 30 Nov 2018 22:46:45 +0000 (22:46 +0000)]
pretty-print.c: add selftest::test_prefixes_and_wrapping

gcc/ChangeLog:
* pretty-print.c (class selftest::test_pretty_printer): New
subclass of pretty_printer.
(selftest::test_prefixes_and_wrapping): New test.
(selftest::pretty_print_c_tests): Call it.

From-SVN: r266695

5 years agoMinimize clone counter memory usage in LTO.
Michael Ploujnikov [Fri, 30 Nov 2018 22:31:02 +0000 (22:31 +0000)]
Minimize clone counter memory usage in LTO.

gcc/lto:

* lto-partition.c (privatize_symbol_name_1): Keep track of
non-unique symbol counters in the lto_clone_numbers hash
map.
(lto_promote_cross_file_statics): Allocate and free the
lto_clone_numbers hash map.
(lto_promote_statics_nonwpa): Free the lto_clone_numbers hash
map.

From-SVN: r266693

5 years agoMinimize clone counter memory usage in create_virtual_clone.
Michael Ploujnikov [Fri, 30 Nov 2018 22:27:11 +0000 (22:27 +0000)]
Minimize clone counter memory usage in create_virtual_clone.

Based on Martin Jambour's suggestion:
https://gcc.gnu.org/ml/gcc-patches/2018-09/msg00111.html

gcc:

* cgraph.h (clone_function_name): Add a variant that takes a
tree decl.
* cgraph.h (cgraph_node::create_virtual_clone): Add a new
argument: num_suffix.
* cgraphclones.c (cgraph_node::create_virtual_clone): Pass
num_suffix to clone_function_name.
(clone_function_name): Add a variant that takes a tree decl.
* ipa-cp.c (create_specialized_node): Keep track of clone
counters in clone_num_suffixes hash map.
(ipcp_driver): Free the counter hash map.
* ipa-hsa.c (process_hsa_functions): Creates at most one hsa
clone per function.

From-SVN: r266692

5 years agoMake function assembly more independent.
Michael Ploujnikov [Fri, 30 Nov 2018 22:20:43 +0000 (22:20 +0000)]
Make function assembly more independent.

This is achieved by having clone_function_name assign unique clone
numbers for each function independently.

gcc:

* cgraphclones.c: Replaced clone_fn_id_num with clone_fn_ids;
hash map.
(clone_function_name_numbered): Use clone_fn_ids.

gcc/testsuite:

* gcc.dg/independent-cloneids-1.c: New test.

From-SVN: r266691

5 years agore PR debug/85550 (-fdebug-types-section broken with DW_OP_addr in DW_AT_location)
Jakub Jelinek [Fri, 30 Nov 2018 20:55:41 +0000 (21:55 +0100)]
re PR debug/85550 (-fdebug-types-section broken with DW_OP_addr in DW_AT_location)

PR debug/85550
* g++.dg/debug/dwarf2/pr85550.C: New test.

From-SVN: r266689

5 years ago[PR88288, OpenACC, libgomp] Adjust offsets for present data clauses
Cesar Philippidis [Fri, 30 Nov 2018 20:39:49 +0000 (12:39 -0800)]
[PR88288, OpenACC, libgomp] Adjust offsets for present data clauses

Make libgomp respect the on device offset of subarrays which may arise in
present data clauses.

libgomp/
PR libgomp/88288
* oacc-parallel.c (GOACC_parallel_keyed): Add offset to devaddrs.
* testsuite/libgomp.oacc-c-c++-common/pr88288.c: New test.

Reviewed-by: Thomas Schwinge <thomas@codesourcery.com>
From-SVN: r266688

5 years ago[C++] Use existing local variable in cp_parser_oacc_enter_exit_data
James Norris [Fri, 30 Nov 2018 20:39:40 +0000 (20:39 +0000)]
[C++] Use existing local variable in cp_parser_oacc_enter_exit_data

gcc/cp/
* parser.c (cp_parser_oacc_enter_exit_data): Use existing local
variable.

Reviewed-by: Thomas Schwinge <thomas@codesourcery.com>
From-SVN: r266687

5 years ago[PR87924] Add (XFAILed) test cases for OpenACC wait clauses without async-arguments
Thomas Schwinge [Fri, 30 Nov 2018 20:39:30 +0000 (21:39 +0100)]
[PR87924] Add (XFAILed) test cases for OpenACC wait clauses without async-arguments

gcc/testsuite/
PR c/87924
* c-c++-common/goacc/asyncwait-5.c: Update.
* gfortran.dg/goacc/asyncwait-5.f: Likewise.

From-SVN: r266686

5 years agoClean up Fortran OpenACC wait clause handling
Thomas Schwinge [Fri, 30 Nov 2018 20:39:18 +0000 (21:39 +0100)]
Clean up Fortran OpenACC wait clause handling

"wait" can be deduced from "wait_list".

gcc/fortran/
* gfortran.h (struct gfc_omp_clauses): Remove "wait".  Adjust all
users.

From-SVN: r266685

5 years agoSupport multiple OpenACC wait clauses
Thomas Schwinge [Fri, 30 Nov 2018 20:39:08 +0000 (21:39 +0100)]
Support multiple OpenACC wait clauses

Support for this is not explicitly called for in OpenACC 2.6, but given that
GCC internally decomposes "wait (1, 2)" into "wait (1) wait (2)" (similar for
other clauses, too), it's reasonable to also support that syntax in the front
ends -- which happens to already be the case for C, C++, and easy enough to do
for Fortran.

gcc/fortran/
* openmp.c (gfc_match_omp_clauses): Support multiple OpenACC wait
clauses.
gcc/testsuite/
* c-c++-common/goacc/asyncwait-5.c: New file.
* gfortran.dg/goacc/asyncwait-5.f: Likewise.

From-SVN: r266684

5 years agoAdd libgomp.oacc-fortran/lib-16-2.f90
Thomas Schwinge [Fri, 30 Nov 2018 20:38:57 +0000 (21:38 +0100)]
Add libgomp.oacc-fortran/lib-16-2.f90

This is a copy of libgomp.oacc-fortran/lib-16.f90, but does 'include
"openacc_lib.h"' instead of 'use openacc'.

libgomp/
* testsuite/libgomp.oacc-fortran/lib-16-2.f90: New file.

From-SVN: r266683

5 years agore PR rtl-optimization/88179 ([MIPS] pr84941.c ICE in lra_eliminate_reg_if_possible...
Vladimir Makarov [Fri, 30 Nov 2018 20:15:56 +0000 (20:15 +0000)]
re PR rtl-optimization/88179 ([MIPS]  pr84941.c ICE in lra_eliminate_reg_if_possible at lra-eliminations.c:1393  start with r266385)

2018-11-30  Vladimir Makarov  <vmakarov@redhat.com>

PR rtl-optimization/88179
* lra-constraints.c (address_eliminator::address_eliminator):
Don't eleminate regs in illegitimate address.

From-SVN: r266682

5 years agore PR target/87496 (ICE in aggregate_value_p at gcc/function.c:2046)
Peter Bergner [Fri, 30 Nov 2018 18:57:33 +0000 (18:57 +0000)]
re PR target/87496 (ICE in aggregate_value_p at gcc/function.c:2046)

gcc/testsuite/
PR target/87496
* gcc.target/powerpc/pr86324-1.c: Add dg-skip-if selector.
Add -mcpu=power7 option.

From-SVN: r266680

5 years agoInitialize backtrace state once
Janne Blomqvist [Fri, 30 Nov 2018 16:44:27 +0000 (18:44 +0200)]
Initialize backtrace state once

From backtrace.h for backtrace_create_state:

   Calling this function allocates resources that can not be freed.
   There is no backtrace_free_state function.  The state is used to
   cache information that is expensive to recompute.  Programs are
   expected to call this function at most once and to save the return
   value for all later calls to backtrace functions.

So instead of calling backtrace_create_state every time we wish to
show a backtrace, do it once and store the result in a static
variable.  libbacktrace allows multiple threads to access the state,
so no need to use TLS.

Regtested on x86_64-pc-linux-gnu.

libgfortran/ChangeLog:

2018-11-30  Janne Blomqvist  <jb@gcc.gnu.org>

PR libfortran/88137
* runtime/backtrace.c (show_backtrace): Make lbstate a static
variable, initialize once.

From-SVN: r266677

5 years agoImplement P0457R2 String Prefix and Suffix Checking.
Edward Smith-Rowland [Fri, 30 Nov 2018 16:26:02 +0000 (16:26 +0000)]
Implement P0457R2 String Prefix and Suffix Checking.

2018-11-30  Edward Smith-Rowland  <3dw4rd@verizon.net>

Implement P0457R2 String Prefix and Suffix Checking.
* include/bits/basic_string.h: Add starts_with, ends_with members.
* include/std/string_view: Ditto.
* testsuite/21_strings/basic_string/operations/starts_with/
char/1.cc: New test.
* testsuite/21_strings/basic_string/operations/starts_with/
wchar_t/1.cc: New test.
* testsuite/21_strings/basic_string/operations/ends_with/
char/1.cc: New test.
* testsuite/21_strings/basic_string/operations/ends_with/
wchar_t/1.cc: New test.
* testsuite/21_strings/basic_string_view/operations/starts_with/
char/1.cc: New test.
* testsuite/21_strings/basic_string_view/operations/starts_with/
wchar_t/1.cc: New test.
* testsuite/21_strings/basic_string_view/operations/ends_with/
char/1.cc: New test.
* testsuite/21_strings/basic_string_view/operations/ends_with/
wchar_t/1.cc: New test.

From-SVN: r266674

5 years agoThe remainder of the Pre-emptively support P0646R1 for std container erasure.
Edward Smith-Rowland [Fri, 30 Nov 2018 16:13:29 +0000 (16:13 +0000)]
The remainder of the Pre-emptively support P0646R1 for std container erasure.

From-SVN: r266673

5 years agoPre-emptively support P0646R1 for std container erasure.
Edward Smith-Rowland [Fri, 30 Nov 2018 16:12:13 +0000 (16:12 +0000)]
Pre-emptively support P0646R1 for std container erasure.

2018-11-30  Edward Smith-Rowland  <3dw4rd@verizon.net>

Pre-emptively support P0646R1 for std container erasure.
* include/bits/erase_if.h: Accumulate and return number of erased nodes.
* include/std/forward_list (): Return number of erased items.
* include/std/list (): Ditto.
* include/std/map (): Ditto.
* include/std/set (): Ditto.
* include/std/string (): Ditto.
* include/std/unordered_map (): Ditto.
* include/std/unordered_set (): Ditto.
* include/std/vector (): Ditto.
* testsuite/21_strings/basic_string/erasure.cc: Test number of erasures.
* testsuite/23_containers/deque/erasure.cc: Ditto.
* testsuite/23_containers/forward_list/erasure.cc: Ditto.
* testsuite/23_containers/list/erasure.cc: Ditto.
* testsuite/23_containers/map/erasure.cc: Ditto.
* testsuite/23_containers/set/erasure.cc: Ditto.
* testsuite/23_containers/unordered_map/erasure.cc: Ditto.
* testsuite/23_containers/unordered_set/erasure.cc: Ditto.
* testsuite/23_containers/vector/erasure.cc: Ditto.

From-SVN: r266672

5 years agoFix ICE in substring locations from macros in header files (PR preprocessor/88257)
David Malcolm [Fri, 30 Nov 2018 15:57:37 +0000 (15:57 +0000)]
Fix ICE in substring locations from macros in header files (PR preprocessor/88257)

PR preprocessor/88257 reports an ICE on gcc.dg/format/pr78304.c
when compiled using g++:

void test (const char *msg)
{
  printf ("size: %" PRIu32 "\n", msg);
}

due to mismatching files (and line maps) between
linemap_resolve_location and expand_location_to_spelling_point
when PRIu32 is defined in a system header.

The root cause is that expand_location_to_spelling_point stops
unwinding locations when it reaches a system header, whereas
linemap_resolve_location can resolve into a system header,
which can lead to locations within get_substring_ranges_for_loc
getting out of sync, and using the wrong line map.

This patch fixes the issue by checking that the files are the
same.

gcc/ChangeLog:
PR preprocessor/88257
* input.c (get_substring_ranges_for_loc): Fix indentation.
Bulletproof against getting a different files back from
linemap_resolve_location and expand_location_to_spelling_point.

gcc/testsuite/ChangeLog:
PR preprocessor/88257
* c-c++-common/Wformat-pr88257.c: New test.
* c-c++-common/Wformat-pr88257.h: New test header.
* c-c++-common/empty.h: New test header.

From-SVN: r266671

5 years ago[libbacktrace] Add tests for unused formats
Tom de Vries [Fri, 30 Nov 2018 15:33:23 +0000 (15:33 +0000)]
[libbacktrace] Add tests for unused formats

When building libbacktrace, we typically use elf.c, and don't build pecoff.c,
xcoff.c or unknown.c.

Add testcases that use unused format to ensure that we also build and
test those on a typical development setup.

Bootstrapped and reg-tested on x86_64.

2018-11-30  Tom de Vries  <tdevries@suse.de>

* Makefile.am (check_PROGRAMS): Add test_elf, test_xcoff_32,
test_xcoff_64, test_pecoff and test_unknown.
* Makefile.in: Regenerate.
* test_format.c: New file.

From-SVN: r266668

5 years ago[libbacktrace] Test check_PROGRAMS without mmap
Tom de Vries [Fri, 30 Nov 2018 15:33:12 +0000 (15:33 +0000)]
[libbacktrace] Test check_PROGRAMS without mmap

When building libbacktrace, we typically use mmapio.c and mmap.c, and don't
build read.c and alloc.c.

Add testcases that use read.c and alloc.c to ensure that we also build and
test those on a typical development setup.

Bootstrapped and reg-tested on x86_64.

2018-11-30  Tom de Vries  <tdevries@suse.de>

* Makefile.am : Add _with_alloc version for each test in
check_PROGRAMS.
* Makefile.in: Regenerate.

From-SVN: r266667

5 years agoCall decl_default_tls_model with a proper type (PR gcov-profile/88279).
Alexander Monakov [Fri, 30 Nov 2018 15:06:22 +0000 (18:06 +0300)]
Call decl_default_tls_model with a proper type (PR gcov-profile/88279).

2018-11-30  Alexander Monakov  <amonakov@ispras.ru>

PR gcov-profile/88279
* tree-profile.c (init_ic_make_global_vars): Call
decl_default_tls_model for variable and not it's type.

From-SVN: r266666

5 years ago[PATCH][GCC][ARM] Ensure dotproduct is only enabled on armv8 neon
Sam Tebbs [Fri, 30 Nov 2018 14:38:11 +0000 (14:38 +0000)]
[PATCH][GCC][ARM] Ensure dotproduct is only enabled on armv8 neon

gcc/ChangeLog:

2018-11-30  Sam Tebbs<sam.tebbs@arm.com>

* config/arm/arm.h (TARGET_DOTPROD): Add TARGET_VFP5 constraint.

gcc/testsuite/ChangeLog:

2018-11-30  Sam Tebbs<sam.tebbs@arm.com>

* gcc.target/arm/neon-dotprod-restriction.c: New file.
* lib/target-supports.exp
(check_effective_target_arm_v8_2a_dotprod_neon_ok_nocache): Include
stdint.h.

From-SVN: r266665

5 years agoMake red zone size more flexible for stack variables (PR sanitizer/81715).
Martin Liska [Fri, 30 Nov 2018 14:25:15 +0000 (15:25 +0100)]
Make red zone size more flexible for stack variables (PR sanitizer/81715).

2018-11-30  Martin Liska  <mliska@suse.cz>

PR sanitizer/81715
* asan.c (asan_shadow_cst): Remove, partially transform
into flush_redzone_payload.
(RZ_BUFFER_SIZE): New.
(struct asan_redzone_buffer): New.
(asan_redzone_buffer::emit_redzone_byte): Likewise.
(asan_redzone_buffer::flush_redzone_payload): Likewise.
(asan_redzone_buffer::flush_if_full): Likewise.
(asan_emit_stack_protection): Use asan_redzone_buffer class
that is responsible for proper aligned stores and flushing
of shadow memory payload.
* asan.h (ASAN_MIN_RED_ZONE_SIZE): New.
(asan_var_and_redzone_size): Likewise.
* cfgexpand.c (expand_stack_vars): Use smaller alignment
(ASAN_MIN_RED_ZONE_SIZE) in order to make shadow memory
for automatic variables more compact.
2018-11-30  Martin Liska  <mliska@suse.cz>

PR sanitizer/81715
* c-c++-common/asan/asan-stack-small.c: New test.

From-SVN: r266664

5 years ago[RS6000] PowerPC64 soft-float
Alan Modra [Fri, 30 Nov 2018 13:35:25 +0000 (00:05 +1030)]
[RS6000] PowerPC64 soft-float

This patch aims to prevent long sequences loading soft-float
constants.  For 32-bit, it makes sense to load values inline to a gpr
with lis, addi, but not so much for 64-bit where a 5 insn sequence
might be needed for each gpr.  For TFmode in particular, a 10 insn
sequence is reduced to 2 loads from memory plus 1 or 2 address setup
insns.

* config/rs6000/predicates.md (easy_fp_constant): Avoid long
dependent insn sequences.
* config/rs6000/rs6000.c (num_insns_constant): Support long
double constants.
* config/rs6000/rs6000.md (mov<mode>_softfloat <FMOVE128>): Adjust
length attribute.

From-SVN: r266663

5 years ago[RS6000] num_insns_constant ICE
Alan Modra [Fri, 30 Nov 2018 13:33:18 +0000 (00:03 +1030)]
[RS6000] num_insns_constant ICE

This patch came about from investigating an ICE that appeared when I
was retesting an old half-baked patch of mine to rs6000_rtx_costs.
If a const_double is fed to rs6000_is_valid_and_mask and from there to
rs6000_is_valid_mask where INTVAL is used, gcc will ICE.

The num_insns_constant ICE was introduced with git commit f337168d97.
However, the code was buggy before that.  There was no point in
testing for a mask since the mask predicates only handle const_int.
In fact, I don't think the function ever handled floating point
constants that might match a load of minus one and mask.  It does now.
I've added a few comments regarding splitters so the next person
looking at this code can see how this works.

The patch also extracts code out of num_insns_constant that needed to
handle multiple gprs for DFmode constants in 32-bit mode, to a
function that handles multiple gprs a little more generally.  I don't
think there is any need for anything but the 32-bit DFmode case
currently, but this allows for possible future uses.  The
CONST_WIDE_INT case is also not used currently, and needed fixing.
Adding CONST_WIDE_INT_NUNITS - 1 only makes sense if the elements of
the array were being shifted into a register of size larger than the
element size (which is 64-bits).

* config/rs6000/rs6000.c (num_insns_constant_gpr): Renamed from
num_insns_constant_wide.  Make static.  Revise comment.
(num_insns_constant_multi): New function.
(num_insns_constant): Formatting.  Correct CONST_WIDE_INT
calculation.  Simplify and extract code common to both
CONST_INT and CONST_DOUBLE.  Add gcc_unreachable for unhandled
const_double modes.
* config/rs6000/rs6000-protos.h (num_insns_const_wide): Delete.

From-SVN: r266662

5 years agogimple-parser.c (c_parser_gimple_postfix_expression): Parse _Literal (type) { ...
Richard Biener [Fri, 30 Nov 2018 12:02:55 +0000 (12:02 +0000)]
gimple-parser.c (c_parser_gimple_postfix_expression): Parse _Literal (type) { ...

2018-11-30  Richard Biener  <rguenther@suse.de>

c/
* gimple-parser.c (c_parser_gimple_postfix_expression): Parse
_Literal (type) { ... } as empty aggregate or vector constructor.

* gcc.dg/gimplefe-34.c: New testcase.
* gcc.dg/gimplefe-35.c: Likewise.

From-SVN: r266661

5 years agoRestrict vector extension to use 128bit vectors (PR testsuite/88265).
Martin Liska [Fri, 30 Nov 2018 10:48:51 +0000 (11:48 +0100)]
Restrict vector extension to use 128bit vectors (PR testsuite/88265).

2018-11-30  Martin Liska  <mliska@suse.cz>

PR testsuite/88265
* gfortran.dg/simd-builtins-1.f90: Restrict to 128b vectors.
* gfortran.dg/simd-builtins-6.f90: Likewise.

From-SVN: r266660

5 years agore PR tree-optimization/88274 (ICE in check, at tree-vrp.c:188)
Richard Biener [Fri, 30 Nov 2018 10:37:39 +0000 (10:37 +0000)]
re PR tree-optimization/88274 (ICE in check, at tree-vrp.c:188)

2018-11-30  Richard Biener  <rguenther@suse.de>

PR tree-optimization/88274
* tree-vrp.c (ranges_from_anti_range): Fix handling of
TYPE_MIN/MAX_VALUE.

From-SVN: r266659

5 years ago[libbacktrace] Factor out backtrace_vector_free
Tom de Vries [Fri, 30 Nov 2018 08:43:50 +0000 (08:43 +0000)]
[libbacktrace] Factor out backtrace_vector_free

Factor out new function backtrace_vector_free.

Bootstrapped and reg-tested on x86_64.

2018-11-30  Tom de Vries  <tdevries@suse.de>

* internal.h (backtrace_vector_free): New static inline fuction,
factored out of ...
* dwarf.c (read_line_info): ... here.

From-SVN: r266658

5 years agoDaily bump.
GCC Administrator [Fri, 30 Nov 2018 00:16:30 +0000 (00:16 +0000)]
Daily bump.

From-SVN: r266657

5 years agoAllow changing the fentry section per file and per function
Andi Kleen [Thu, 29 Nov 2018 23:11:59 +0000 (23:11 +0000)]
Allow changing the fentry section per file and per function

When dynamically patching in/out instrumentation it can be useful
to handle different classes of functions differently. Add support
for changing the fentry section name on the command line
or as a function attributes. This allows to mark functions differently,
and handle them differently in dynamic patching.

gcc/:

2018-11-29  Andi Kleen  <ak@linux.intel.com>

* config/i386/i386.c (current_fentry_section): Add.
(x86_function_profiler): Handle fentry section.
(ix86_attribute_table): Add fentry section.
* config/i386/i386.opt: Add -mfentry-section.
* doc/extend.texi: Document fentry_section attribute.
* doc/invoke.texi: Document -mfentry-section.

gcc/testsuite/:

2018-11-29  Andi Kleen  <ak@linux.intel.com>

* gcc.target/i386/fentryname2.c: New test.
* gcc.target/i386/fentryname3.c: New test.

From-SVN: r266654

5 years agoSupport changing fentry name per function
Andi Kleen [Thu, 29 Nov 2018 23:11:53 +0000 (23:11 +0000)]
Support changing fentry name per function

It can be useful to have some classes of functions that use a different
__fentry__ instrumentation than others.  Currently it is only
possible to disable instrumentation on the command line or with
no_instrument_function, but not to change the instrumentation function
on a case by case base.

Add some flexibility to allow to change the instrumentation function
name per file with an option or per function with a new attribute.
This also allows switching to nops for individual functions.

gcc/:

2018-11-29  Andi Kleen  <ak@linux.intel.com>

* config/i386/i386.c (x86_print_call_or_nop): Handle nop name.
(current_fentry_name): Add.
(x86_function_profiler): Handle fentry_name attribute.
(ix86_handle_fentry_name): Add.
(ix86_attribute_table): Add fentry_name.
* config/i386/i386.opt: Add -mfentry-name
* doc/extend.texi: Document fentry_name.
* doc/invoke.texi: Document minstrument-return.

gcc/testsuite/:

2018-11-29  Andi Kleen  <ak@linux.intel.com>

* gcc.target/i386/fentryname1.c: New test.

From-SVN: r266653

5 years agoSupport instrumenting returns of instrumented functions
Andi Kleen [Thu, 29 Nov 2018 23:11:47 +0000 (23:11 +0000)]
Support instrumenting returns of instrumented functions

When instrumenting programs using __fentry__ it is often useful
to instrument the function return too. Traditionally this
has been done by patching the return address on the stack
frame on entry. However this is fairly complicated (trace
function has to emulate a stack) and also slow because
it causes a branch misprediction on every return.

Add an option to generate call or nop instrumentation for
every return instead, including patch sections.

This will increase the program size slightly, but can be a
lot faster and simpler.

This version only instruments true returns, not sibling
calls or tail recursion. This matches the semantics of the
original stack.

gcc/:

2018-11-29  Andi Kleen  <ak@linux.intel.com>

* config/i386/i386-opts.h (enum instrument_return): Add.
* config/i386/i386.c (output_return_instrumentation): Add.
(ix86_output_function_return): Call output_return_instrumentation.
(ix86_output_call_insn): Call output_return_instrumentation.
* config/i386/i386.opt: Add -minstrument-return=.
* doc/invoke.texi (-minstrument-return): Document.

gcc/testsuite/:

2018-11-29  Andi Kleen  <ak@linux.intel.com>

* gcc.target/i386/returninst1.c: New test.
* gcc.target/i386/returninst2.c: New test.
* gcc.target/i386/returninst3.c: New test.

From-SVN: r266652

5 years agore PR target/87807 (passing float/double vectors as variadic args fails on-64bit...
Eric Botcazou [Thu, 29 Nov 2018 23:08:09 +0000 (23:08 +0000)]
re PR target/87807 (passing float/double vectors as variadic args fails on-64bit SPARC)

PR target/87807
* config/sparc/sparc-modes.def: Minor tweak.
* config/sparc/sparc.c: Minor reordering.
(sparc_pass_by_reference): Move around.
(traverse_record_type): Change offset from HOST_WIDE_INT to int.
(classify_registers): Likewise for bitpos.
(function_arg_slotno): Remove dead test and tweak comments.
<MODE_RANDOM>: Remove useless assertion and test whether the
parameter is named in order to pass it in FP registers.  Return
the regno for floating-point vector types.
(compute_int_layout): Change bitpos from HOST_WIDE_INT to int.
(compute_fp_layout): Likewise.
(count_registers): Likewise.
(assign_int_registers): Likewise.
(assign_fp_registers): Likewise.
(assign_registers): Likewise.
(function_arg_record_value): Change size from HOST_WIDE_INT to int
and use CEIL_NWORDS to compute the number of registers.
(function_arg_union_value): Minor tweaks.
(function_arg_vector_value): Add slotno and named parameters, use
CEIL_NWORDS to compute the number of registers.
(sparc_function_arg_1): Rework handling of vector types.  Change
size from HOST_WIDE_INT to int.
(sparc_arg_partial_bytes): Rework handling of 32-bit ABI and deal
with vector types for the 64-bt ABI.
(sparc_function_arg_advance): Likewise.
(sparc_return_in_memory): Add reference to -fpcc-struct-return.
(sparc_struct_value_rtx): Return NULL_RTX instead of 0.
(sparc_function_value_1): Rework handling of vector types.  Change
size from HOST_WIDE_INT to int.

From-SVN: r266651

5 years agore PR target/88152 (optimize SSE & AVX char compares with subsequent movmskb)
Jakub Jelinek [Thu, 29 Nov 2018 22:16:37 +0000 (23:16 +0100)]
re PR target/88152 (optimize SSE & AVX char compares with subsequent movmskb)

PR target/88152
* config/i386/sse.md (*<sse>_movmsk<ssemodesuffix><avxsizesuffix>_lt,
*<sse>_movmsk<ssemodesuffix><avxsizesuffix>_zext_lt,
*<sse>_movmsk<ssemodesuffix><avxsizesuffix>_shift,
*<sse>_movmsk<ssemodesuffix><avxsizesuffix>_zext_shift,
*<sse2_avx2>_pmovmskb_lt, *<sse2_avx2>_pmovmskb_zext_lt): New
define_insn_and_split patterns.

* g++.target/i386/pr88152.C: New test.

From-SVN: r266649

5 years agore PR target/54700 (Optimize away x<0 as mask argument of a blend.)
Jakub Jelinek [Thu, 29 Nov 2018 22:15:42 +0000 (23:15 +0100)]
re PR target/54700 (Optimize away x<0 as mask argument of a blend.)

PR target/54700
* config/i386/sse.md
(*<sse4_1>_blendv<ssemodesuffix><avxsizesuffix>_lt,
*<sse4_1>_blendv<ssefltmodesuffix><avxsizesuffix>_ltint,
*<sse4_1_avx2>_pblendvb_lt): Change define_insn into
define_insn_and_split.

From-SVN: r266648

5 years agopr34256.c: Adjust the number of expected moves.
Vladimir Makarov [Thu, 29 Nov 2018 22:02:15 +0000 (22:02 +0000)]
pr34256.c: Adjust the number of expected moves.

2018-11-29  Vladimir Makarov  <vmakarov@redhat.com>

* gcc.target/i386/pr34256.c: Adjust the number of expected moves.

From-SVN: r266646

5 years agodecl.c (compute_array_index_type_loc): New, like the current compute_array_index_type...
Paolo Carlini [Thu, 29 Nov 2018 21:34:38 +0000 (21:34 +0000)]
decl.c (compute_array_index_type_loc): New, like the current compute_array_index_type but takes a location_t too.

/cp
2018-11-29  Paolo Carlini  <paolo.carlini@oracle.com>

* decl.c (compute_array_index_type_loc): New, like the current
compute_array_index_type but takes a location_t too.
(compute_array_index_type): Forward to the latter.
(create_array_type_for_decl): Use compute_array_index_type_loc.

/testsuite
2018-11-29  Paolo Carlini  <paolo.carlini@oracle.com>

* g++.dg/cpp0x/constexpr-base6b.C: New.
* g++.dg/cpp0x/constexpr-47969.C: Test locations too.
* g++.dg/cpp0x/constexpr-48324.C: Likewise.
* g++.dg/cpp0x/constexpr-ex2.C: Likewise.
* g++.dg/cpp0x/scoped_enum2.C: Likewise.
* g++.dg/cpp1y/pr63996.C: Likewise.
* g++.dg/ext/constexpr-vla5.C: Likewise.
* g++.dg/ext/stmtexpr15.C: Likewise.
* g++.dg/ext/vla1.C: Likewise.
* g++.dg/other/fold1.C: Likewise.
* g++.dg/parse/array-size2.C: Likewise.
* g++.dg/parse/crash36.C: Likewise.
* g++.dg/ubsan/pr81530.C: Likewise.
* g++.dg/warn/Wvla-1.C: Likewise.
* g++.dg/warn/Wvla-2.C: Likewise.
* g++.old-deja/g++.brendan/array1.C: Likewise.
* g++.old-deja/g++.bugs/900402_02.C: Likewise.
* g++.old-deja/g++.law/init3.C: Likewise.
* g++.old-deja/g++.mike/p6149.C: Likewise.

From-SVN: r266645

5 years agoC++: namespaces and scopes for enum values (PR c++/88121)
David Malcolm [Thu, 29 Nov 2018 21:21:56 +0000 (21:21 +0000)]
C++: namespaces and scopes for enum values (PR c++/88121)

Consider this test case:

namespace json
{
  enum { JSON_OBJECT };
}

void test ()
{
  JSON_OBJECT;
}

which erroneously accesses an enum value in another namespace without
qualifying the access.

GCC 6 through 8 issue a suggestion that doesn't mention the namespace:

<source>: In function 'void test()':
<source>:8:3: error: 'JSON_OBJECT' was not declared in this scope
   JSON_OBJECT;
   ^~~~~~~~~~~
<source>:8:3: note: suggested alternative:
<source>:3:10: note:   'JSON_OBJECT'
   enum { JSON_OBJECT };
          ^~~~~~~~~~~

which is suboptimal.

I made the problem worse with r265610, which consolidates the single
suggestion into the error, and emits:

<source>: In function 'void test()':
<source>:8:3: error: 'JSON_OBJECT' was not declared in this scope; did
   you mean 'JSON_OBJECT'?
    8 |   JSON_OBJECT;
      |   ^~~~~~~~~~~
      |   JSON_OBJECT
<source>:3:10: note: 'JSON_OBJECT' declared here
    3 |   enum { JSON_OBJECT };
      |          ^~~~~~~~~~~

where the message:
  'JSON_OBJECT' was not declared in this scope; did you mean 'JSON_OBJECT'?
is nonsensical.

This patch tweaks dump_scope to detect unscoped enums, and to use the
enclosing namespace for them, so that the CONST_DECL is dumped as
"json::JSON_OBJECT".

This changes the output for the above so that it refers to the
namespace, fixing the issue:

<source>:8:3: error: 'JSON_OBJECT' was not declared in this scope; did
   you mean 'json::JSON_OBJECT'?
    9 |   JSON_OBJECT;
      |   ^~~~~~~~~~~
      |   json::JSON_OBJECT
<source>3:10: note: 'json::JSON_OBJECT' declared here
    3 |   enum { JSON_OBJECT };
      |          ^~~~~~~~~~~

The patch also fixes scope-printing for values within scoped enums.
To exercise this, the patch extends the scanner for namespaces for
exact matches for a name, so that we also scan inside scoped
enums, to cover the case where someone doesn't supply the scope.

Hence with the patch given e.g.:

enum class vegetable { CARROT, TURNIP };

we're able to offer e.g.:

suggestions-scoped-enums.C:50:3: error: 'CARROT' was not declared in
  this scope; did you mean 'vegetable::CARROT'?
   50 |   CARROT;
      |   ^~~~~~
      |   vegetable::CARROT

and this exercises the code path above.  The patch updates dump_scope
for scoped enums so that we print the scope when printing the
value ("vegetable::CARROT"), rather than just the name of the value
("CARROT").

Finally, the patch adds spell-corrections within a scoped enum,
giving e.g.:

suggestions-scoped-enums.C:18:14: error: 'TURNUP' is not a member of
  'vegetable'; did you mean 'TURNIP'?
   18 |   vegetable::TURNUP;
      |              ^~~~~~
      |              TURNIP

gcc/cp/ChangeLog:
PR c++/88121
* cp-name-hint.h (suggest_alternative_in_scoped_enum): New decl.
* error.c (dump_scope): Ensure that we print any scope for values
of unscoped enums.  Print the scope of values of scoped enums.
(qualified_name_lookup_error): Offer suggestions for failures
within scoped enums by calling suggest_alternative_in_scoped_enum.
* name-lookup.c (class namespace_hints): Update comment to mention
scoped enums.
(namespace_hints::namespace_hints): Call
maybe_add_candidate_for_scoped_enum.
(namespace_hints::maybe_add_candidate_for_scoped_enum): New member
(suggest_alternatives_for): Update comment to mention scoped
enums.
(suggest_alternative_in_scoped_enum): New function.

gcc/testsuite/ChangeLog:
PR c++/88121
* g++.dg/lookup/suggestions-scoped-enums.C: New test.
* g++.dg/lookup/suggestions-unscoped-enums.C: New test.

From-SVN: r266644

5 years agore PR target/87496 (ICE in aggregate_value_p at gcc/function.c:2046)
Peter Bergner [Thu, 29 Nov 2018 19:25:47 +0000 (19:25 +0000)]
re PR target/87496 (ICE in aggregate_value_p at gcc/function.c:2046)

gcc/
PR target/87496
* config/rs6000/rs6000.c (rs6000_option_override_internal): Disallow
-mabi=ieeelongdouble without both -mpopcntd and -mvsx.

gcc/testsuite/
PR target/87496
* gcc.target/powerpc/pr87496.c: New test.

From-SVN: r266636

5 years agoi386.c (inline_memory_move_cost): Check "in" for 2 in MMX_CLASS_P case.
Uros Bizjak [Thu, 29 Nov 2018 18:22:30 +0000 (19:22 +0100)]
i386.c (inline_memory_move_cost): Check "in" for 2 in MMX_CLASS_P case.

* config/i386/i386.c (inline_memory_move_cost):
Check "in" for 2 in MMX_CLASS_P case.
* config/i386/mmx.md (*mov<mode>_internal): Correct
TARGET_INTER_UNIT_MOVES_FROM_VEC and TARGET_INTER_UNIT_MOVES_TO_VEC
alternatives in preferred_for_speed attribute calculation.

From-SVN: r266635