gcc.git
5 years agore PR middle-end/89544 (Argument marshalling incorrectly assumes stack slots are...
Bernd Edlinger [Tue, 20 Aug 2019 05:32:49 +0000 (05:32 +0000)]
re PR middle-end/89544 (Argument marshalling incorrectly assumes stack slots are naturally aligned.)

2019-08-20  Bernd Edlinger  <bernd.edlinger@hotmail.de>

        PR middle-end/89544
        * function.c (assign_parm_find_stack_rtl): Use larger alignment
        when possible.

testsuite:
2019-08-20  Bernd Edlinger  <bernd.edlinger@hotmail.de>

        PR middle-end/89544
        * gcc.target/arm/unaligned-argument-1.c: New test.
        * gcc.target/arm/unaligned-argument-2.c: New test.

From-SVN: r274691

5 years agoDaily bump.
GCC Administrator [Tue, 20 Aug 2019 00:16:22 +0000 (00:16 +0000)]
Daily bump.

From-SVN: r274689

5 years agocompiler: new debugging output methods/functions
Ian Lance Taylor [Mon, 19 Aug 2019 21:15:49 +0000 (21:15 +0000)]
compiler: new debugging output methods/functions

    Add new hooks for dumping named objects, package bindings,
    and top level Gogo package list.

    Reviewed-on: https://go-review.googlesource.com/c/gofrontend/+/190877

From-SVN: r274682

5 years agoruntime: be more strict in GC
Ian Lance Taylor [Mon, 19 Aug 2019 19:09:50 +0000 (19:09 +0000)]
runtime: be more strict in GC

    With CL 190599, along with what we do in greyobject, we ensure
    that we only mark allocated heap objects. As a result we can be
    more strict in GC:

    - Enable "sweep increased allocation count" check, which checks
      that the number of mark bits set are no more than the number of
      allocation bits.

    - Enable invalid pointer check on heap scan. We only trace
      allocated heap objects, which should not contain invalid
      pointer.

    This also makes the libgo runtime more convergent with the gc
    runtime.

    Reviewed-on: https://go-review.googlesource.com/c/gofrontend/+/190797

From-SVN: r274678

5 years ago[AArch64] Use scvtf fbits option where appropriate
Joel Hutton [Mon, 19 Aug 2019 16:55:20 +0000 (16:55 +0000)]
[AArch64] Use scvtf fbits option where appropriate

gcc/ChangeLog:
2019-08-19  Joel Hutton  <Joel.Hutton@arm.com>

* config/aarch64/aarch64-protos.h (aarch64_fpconst_pow2_recip): New prototype
* config/aarch64/aarch64.c (aarch64_fpconst_pow2_recip): New function
* config/aarch64/aarch64.md (*aarch64_<su_optab>cvtf<fcvt_target><GPF:mode>2_mult): New pattern
(*aarch64_<su_optab>cvtf<fcvt_iesize><GPF:mode>2_mult): New pattern
* config/aarch64/constraints.md (Dt): New constraint
* config/aarch64/predicates.md (aarch64_fpconst_pow2_recip): New predicate

gcc/testsuite/ChangeLog:
2019-08-19  Joel Hutton  <Joel.Hutton@arm.com>

* gcc.target/aarch64/fmul_scvtf_1.c: New test.

From-SVN: r274676

5 years agoAdd --with-static-standard-libraries to the top level
Tom Tromey [Mon, 19 Aug 2019 15:47:30 +0000 (15:47 +0000)]
Add --with-static-standard-libraries to the top level

gdb should normally not be linked with -static-libstdc++.  Currently
this has not caused problems, but it's incompatible with catching an
exception thrown from a shared library -- and a subsequent patch
changes gdb to do just this.

This patch adds a new --with-static-standard-libraries flag to the
top-level configure.  It defaults to "auto", which means enabled if
gcc is being built, and disabled otherwise.

ChangeLog
2019-08-19  Tom Tromey  <tom@tromey.com>

* configure: Rebuild.
* configure.ac: Add --with-static-standard-libraries.

From-SVN: r274673

5 years agore PR tree-optimization/91403 (GCC fails with ICE.)
Richard Biener [Mon, 19 Aug 2019 14:45:38 +0000 (14:45 +0000)]
re PR tree-optimization/91403 (GCC fails with ICE.)

2019-08-19  Richard Biener  <rguenther@suse.de>

PR tree-optimization/91403
* tree-scalar-evolution.c (follow_ssa_edge_binary): Inline
cases we can handle with tail-recursion...
(follow_ssa_edge_expr): ... here.  Do so.

From-SVN: r274672

5 years agoPR c++/91264 - detect modifying const objects in constexpr.
Marek Polacek [Mon, 19 Aug 2019 13:59:13 +0000 (13:59 +0000)]
PR c++/91264 - detect modifying const objects in constexpr.

* constexpr.c (modifying_const_object_error): New function.
(cxx_eval_call_expression): Set TREE_READONLY on a CONSTRUCTOR of
a const-qualified object after it's been fully constructed.
(modifying_const_object_p): New function.
(cxx_eval_store_expression): Detect modifying a const object
during constant expression evaluation.
(cxx_eval_increment_expression): Use a better location when building
up the store.
(cxx_eval_constant_expression) <case DECL_EXPR>: Mark a constant
object's constructor TREE_READONLY.

* g++.dg/cpp1y/constexpr-tracking-const1.C: New test.
* g++.dg/cpp1y/constexpr-tracking-const2.C: New test.
* g++.dg/cpp1y/constexpr-tracking-const3.C: New test.
* g++.dg/cpp1y/constexpr-tracking-const4.C: New test.
* g++.dg/cpp1y/constexpr-tracking-const5.C: New test.
* g++.dg/cpp1y/constexpr-tracking-const6.C: New test.
* g++.dg/cpp1y/constexpr-tracking-const7.C: New test.
* g++.dg/cpp1y/constexpr-tracking-const8.C: New test.
* g++.dg/cpp1y/constexpr-tracking-const9.C: New test.
* g++.dg/cpp1y/constexpr-tracking-const10.C: New test.
* g++.dg/cpp1y/constexpr-tracking-const11.C: New test.
* g++.dg/cpp1y/constexpr-tracking-const12.C: New test.
* g++.dg/cpp1y/constexpr-tracking-const13.C: New test.
* g++.dg/cpp1y/constexpr-tracking-const14.C: New test.

From-SVN: r274671

5 years agoUpdate BOZ constant documentation.
Mark Eggleston [Mon, 19 Aug 2019 08:53:49 +0000 (08:53 +0000)]
Update BOZ constant documentation.

In the section "BOZ Literal constants" delete paragraph about integer
overload errors when initialising integer variables with BOZ constants
as these no longer occur.

From-SVN: r274667

5 years ago[Ada] Fix documentation for stream oriented attributes
Bob Duff [Mon, 19 Aug 2019 08:37:39 +0000 (08:37 +0000)]
[Ada] Fix documentation for stream oriented attributes

2019-08-19  Bob Duff  <duff@adacore.com>

gcc/ada/

* doc/gnat_rm/implementation_advice.rst: Fix documentation for
stream oriented attributes.
* gnat_rm.texi: Regenerate.

From-SVN: r274666

5 years ago[Ada] Einfo: update comments for E_Function and E_Procedure
Gary Dismukes [Mon, 19 Aug 2019 08:37:34 +0000 (08:37 +0000)]
[Ada] Einfo: update comments for E_Function and E_Procedure

2019-08-19  Gary Dismukes  <dismukes@adacore.com>

gcc/ada/

* einfo.ads (E_Function, E_Procedure): Update comments to
reflect that Renamed_Entity is also used for nongeneric
subprograms.

From-SVN: r274665

5 years ago[Ada] Fix bogus compilation error with Elaborate_Body and -gnatN
Eric Botcazou [Mon, 19 Aug 2019 08:37:28 +0000 (08:37 +0000)]
[Ada] Fix bogus compilation error with Elaborate_Body and -gnatN

This fixes a bogus compilation error when a unit with SPARK_Mode
containing a pragma Elaborate_Body is with-ed by a generic unit
containing an inlined subprogram, and front-end inlining is enabled.

2019-08-19  Eric Botcazou  <ebotcazou@adacore.com>

gcc/ada/

* sem_prag.adb (Is_Before_First_Decl): Deal with rewritten
pragmas.

gcc/testsuite/

* gnat.dg/elab8.adb, gnat.dg/elab8_gen.adb,
gnat.dg/elab8_gen.ads, gnat.dg/elab8_pkg.adb,
gnat.dg/elab8_pkg.ads: New testcase.

From-SVN: r274664

5 years ago[Ada] Suppress warnings on unreferenced parameters of dispatching ops
Bob Duff [Mon, 19 Aug 2019 08:37:23 +0000 (08:37 +0000)]
[Ada] Suppress warnings on unreferenced parameters of dispatching ops

If the -gnatwf switch is used to activate warnings on unreferenced
formal parameters, the warning is no longer given if the subprogram is
dispatching, because such warnings tend to be noise. It is quite common
to have a parameter that is necessary just because the subprogram is
overriding, or just because we need a controlling parameter for the
dispatch.

2019-08-19  Bob Duff  <duff@adacore.com>

gcc/ada/

* sem_warn.adb (Warn_On_Unreferenced_Entity): Suppress warning
on formal parameters of dispatching operations.

gcc/testsuite/

* gnat.dg/warn29.adb, gnat.dg/warn29.ads: New testcase.

From-SVN: r274663

5 years ago[Ada] Crash on object initialization that is call to expression function
Ed Schonberg [Mon, 19 Aug 2019 08:37:18 +0000 (08:37 +0000)]
[Ada] Crash on object initialization that is call to expression function

This patch fixes a compiler abort on an object declaration for a
class-wide type whose expression is a call to an expression function
that returns type extension.

2019-08-19  Ed Schonberg  <schonberg@adacore.com>

gcc/ada/

* sem_res.adb (Resolve_Call): A call to an expression function
freezes when expander is active, unless the call appears within
the body of another expression function,

gcc/testsuite/

* gnat.dg/expr_func9.adb: New testcase.

From-SVN: r274662

5 years ago[Ada] Conversion routines between GNAT.OS_Lib.OS_Time and long integer
Dmitriy Anisimkov [Mon, 19 Aug 2019 08:37:13 +0000 (08:37 +0000)]
[Ada] Conversion routines between GNAT.OS_Lib.OS_Time and long integer

The new routines convert back and forth between private type OS_Time and
a long integer which can be used in package Ada.Calendar.Conversions
routines to convert to Ada.Calendar.Time.

2019-08-19  Dmitriy Anisimkov  <anisimko@adacore.com>

gcc/ada/

* libgnat/s-os_lib.ads, libgnat/s-os_lib.adb (To_Ada, To_C): New
routines.

From-SVN: r274661

5 years ago[Ada] Incorrect code for -gnateV switch
Bob Duff [Mon, 19 Aug 2019 08:37:09 +0000 (08:37 +0000)]
[Ada] Incorrect code for -gnateV switch

This patch corrects the code generated by the -gnateV switch in the case
of a private type whose full type is a modular type, removing spurious
run-time failures.

In addition, this corrects the initialization of exception occurrences
in exception handlers to avoid leaving data uninitialized, which caused
-gnateV to raise spurious errors.

2019-08-19  Bob Duff  <duff@adacore.com>

gcc/ada/

* exp_attr.adb (Attribute_Valid): Correct the handling of
private types where the full type is modular. System.Address is
an example. Otherwise, we convert uncheckedly to a signed type,
so we get an incorrect range 0 .. -1, for which all values will
fail.  The 'Valid attribute is illegal for such types, but we
generate such illegal attribute_references for 'Valid_Scalars,
and we generate 'Valid_Scalars when the -gnateV switch is used.
Rename Btyp --> PBtyp to avoid hiding the outer Btyp, which was
confusing.
* libgnat/a-except.adb: Set the Exception_Raised component.
Otherwise, we have incorrect reads of invalid data.

gcc/testsuite/

* gnat.dg/valid_scalars2.adb: New testcase.

From-SVN: r274660

5 years ago[Ada] Import documentation from the RM for various runtime units
Pierre-Marie de Rodat [Mon, 19 Aug 2019 08:37:03 +0000 (08:37 +0000)]
[Ada] Import documentation from the RM for various runtime units

2019-08-19  Pierre-Marie de Rodat  <derodat@adacore.com>

gcc/ada/

* libgnat/a-cgaaso.ads, libgnat/a-cgarso.ads,
libgnat/a-cogeso.ads, libgnat/a-contai.ads,
libgnat/a-locale.ads: Import documentation from the RM.

From-SVN: r274659

5 years ago[Ada] Generate ada_target_properties
Jerome Guitton [Mon, 19 Aug 2019 08:36:58 +0000 (08:36 +0000)]
[Ada] Generate ada_target_properties

Generate target-dependent info into a file named ada_target_properties.
This information is used by tools for static analysis: they need to know
the size of standard types for a given run-time library. This metadata
is meant to be saved at the root of the run-time directory.

2019-08-19  Jerome Guitton  <guitton@adacore.com>

gcc/ada/

* Makefile.rtl (system.o): New target to add generation of
target properties.
* gcc-interface/Makefile.in (install-gnatlib): Install
ada_target_properties.

From-SVN: r274658

5 years ago[Ada] Lift restriction on instantiations that are compilation units
Eric Botcazou [Mon, 19 Aug 2019 08:36:53 +0000 (08:36 +0000)]
[Ada] Lift restriction on instantiations that are compilation units

This change lifts the restriction that was still present in the new
on-demand instantiation scheme for the body of generics instantiated in
non-main units.

The instantiations that are compilation units were still dealt with in
the old-fashioned way, that is to say the decision of instantiating the
body was still made up front during the analysis of the instance
declaration, instead of being deferred until after a call to an inlined
subprogram is encountered.

This should save a few more cycles when full inlining across units is
enabled, but there should otherwise be no functional changes.

2019-08-19  Eric Botcazou  <ebotcazou@adacore.com>

gcc/ada/

* inline.adb (Add_Inlined_Body): Do not special-case instances
that are compilation units.
(Add_Pending_Instantiation): Likewise.
(Instantiate_Body): Skip instantiations that are compilation
units and have already been performed.
* sem_ch12.adb (Needs_Body_Instantiated): Do not special-case
instances that are compilation units.
(Load_Parent_Of_Generic): Be prepared for parent that is a
compilation unit but whose instantiation node has not been
replaced.

gcc/testsuite/

* gnat.dg/generic_inst12.adb, gnat.dg/generic_inst12_pkg1.adb,
gnat.dg/generic_inst12_pkg1.ads,
gnat.dg/generic_inst12_pkg2.ads: New testcase.

From-SVN: r274657

5 years ago[Ada] Further cleanup in inlining machinery
Eric Botcazou [Mon, 19 Aug 2019 08:36:48 +0000 (08:36 +0000)]
[Ada] Further cleanup in inlining machinery

This adds missing boilerplate stuff.  No functional changes.

2019-08-19  Eric Botcazou  <ebotcazou@adacore.com>

gcc/ada/

* inline.adb (Initialize, Lock): Deal with
Called_Pending_Instantiations.

From-SVN: r274656

5 years ago[Ada] Legality of protected subp. implementing interface operations
Ed Schonberg [Mon, 19 Aug 2019 08:36:44 +0000 (08:36 +0000)]
[Ada] Legality of protected subp. implementing interface operations

This patch refines the predicate that implements rule in RM 9.4 (11.9/2)

Compiling b94.ads must yield:

   b94.ads:11:17: illegal overriding of subprogram inherited from interface
   b94.ads:11:17: first formal of "N" declared at line 8 must be of mode
     "out", "in out" or access-to-variable

----
package B94 is

   type Prot2_Int is protected interface;
   procedure  J (PI : in     Prot2_Int; N : in Integer)  is null;
   procedure  K (PI : in out Prot2_Int; N : in Integer)  is null;
   procedure  L (PI :    out Prot2_Int; N : in Integer)  is null;
   procedure  M (PI : access Prot2_Int; N : in Integer)  is null;
   procedure  N (PI : access constant Prot2_Int; N : in Integer)  is null;

   protected type Protected_2 is new Prot2_Int with
      procedure N (N : in Integer);                   -- ERROR: {7;1}
   end Protected_2;

end B94;

2019-08-19  Ed Schonberg  <schonberg@adacore.com>

gcc/ada/

* sem_ch6.adb (Check_Synchronized_Overriding): Complete
predicate that applies legality check in 9.4 (11.9/2): if an
inherited subprogram is implemented by a protected procedure or
entry, its first paarameter must be out, in_out or
access_to_varible.

From-SVN: r274655

5 years ago[Ada] Buffer reading overflow in dispatch table initialization
Javier Miranda [Mon, 19 Aug 2019 08:36:39 +0000 (08:36 +0000)]
[Ada] Buffer reading overflow in dispatch table initialization

For tagged types not defined at library level that derive from library
level tagged types the compiler may generate code to initialize their
dispatch table of predefined primitives copying from the parent type
data stored in memory after the dispatch table of the parent; that is,
at runtime the initialization of dispatch tables overflows reading the
parent dispatch table.

This problem does not affect the execution of the program since the
target dispatch table always has enough space to store the extra data,
and after such copy the compiler generates code to complete the
initialization of the dispatch table.

The following test must compile and execute without errors.

package pkg_a is
   type Root is tagged null record;
end pkg_a;

with pkg_a;
procedure main is
   type Derived is new pkg_a.Root with null record;  -- Test
begin
   null;
end main;

Command: gnatmake -q main -fsanitize=address; ./main

2019-08-19  Javier Miranda  <miranda@adacore.com>

gcc/ada/

PR ada/65696
* exp_atag.ads, exp_atag.adb (Build_Inherit_Predefined_Prims):
Adding formal to specify how many predefined primitives are
inherited from the parent type.
* exp_disp.adb (Number_Of_Predefined_Prims): New subprogram.
(Make_Secondary_DT): Compute the number of predefined primitives
of all tagged types (including tagged types not defined at
library level).  Previously we unconditionally relied on the
Max_Predef_Prims constant value when building the dispatch
tables of tagged types not defined at library level (thus
consuming more memory for their dispatch tables than required).
(Make_DT): Compute the number of predefined primitives that must
be inherited from their parent type when building the dispatch
tables of tagged types not defined at library level. Previously
we unconditionally relied on the Max_Predef_Prims constant value
when building the dispatch tables of tagged types not defined at
library level (thus copying more data than required from the
parent type).

From-SVN: r274654

5 years ago[Ada] Process type extensions for -gnatw.h
Bob Duff [Mon, 19 Aug 2019 08:36:35 +0000 (08:36 +0000)]
[Ada] Process type extensions for -gnatw.h

This patch enables gap detection in type extensions.

With the -gnatw.h switch, on 64-bit machines,
the following test should get warnings:

gcc -c gaps.ads -gnatw.h
gaps.ads:16:07: warning: 48-bit gap before component "Comp2"
gaps.ads:17:07: warning: 8-bit gap before component "Comp3"

package Gaps is
   type Integer_16 is mod 2**16;

   type TestGap is tagged record
      Comp1 : Integer_16;
   end record;
   for TestGap use record
      Comp1 at 0 + 8 range 0..15;
   end record;

   type TestGap2 is new TestGap with record
      Comp2  : Integer_16;
      Comp3  : Integer_16;
   end record;
   for TestGap2 use record
      Comp2 at 08 + 8 range 0..15;
      Comp3 at 11 + 8 range 0..15;
   end record;

end Gaps;

2019-08-19  Bob Duff  <duff@adacore.com>

gcc/ada/

* sem_ch13.adb (Record_Hole_Check): Procedure to check for holes
that incudes processing type extensions. A type extension is
processed by first calling Record_Hole_Check recursively on the
parent type to compute the bit number after the last component
of the parent.

From-SVN: r274653

5 years ago[Ada] Improve warnings about "too few elements" and "too many elements"
Gary Dismukes [Mon, 19 Aug 2019 08:36:30 +0000 (08:36 +0000)]
[Ada] Improve warnings about "too few elements" and "too many elements"

When warning about length-check failures detected at compile time that
are flagged with "too few elements" or "too many elements", the compiler
now gives an additional message indicating the number of elements
expected by the context versus how many are present in the conflicting
expression (such as an aggregate that has too few or too many
components).

The test below reports the following warnings when compiled with this command:

$ gcc -c -gnatj78 length_warnings.adb

length_warnings.adb:6:09: warning: too few elements for subtype of
                          "Boolean_Array" defined at line 5, expected 10
                          elements; found 9 elements, "Constraint_Error" will
                          be raised at run time
length_warnings.adb:10:09: warning: too few elements for subtype of
                           "Boolean_Array" defined at line 9, expected 2
                           elements; found 1 element, "Constraint_Error" will
                           be raised at run time
length_warnings.adb:14:09: warning: too many elements for subtype of
                           "Boolean_Array" defined at line 13, expected 10
                           elements; found 11 elements, "Constraint_Error"
                           will be raised at run time
length_warnings.adb:18:09: warning: too many elements for subtype of
                           "Boolean_Array" defined at line 17, expected 0
                           elements; found 1 element, "Constraint_Error" will
                           be raised at run time
length_warnings.adb:22:09: warning: too many elements for subtype of
                           "Boolean_Array" defined at line 21, expected 1
                           element; found 2 elements, "Constraint_Error" will
                           be raised at run time

procedure Length_Check_Warnings is

   type Boolean_Array is array (Natural range <>) of Boolean;

   Bits_A : Boolean_Array (1 .. 10)
     := (True, True, True, True, True, True, True, True, True);
   -- Too few elements

   Bits_B : Boolean_Array (1 .. 2)
     := (1 => False);
   -- Too few elements

   Bits_C : Boolean_Array (1 .. 10)
     := (True, True, True, True, True, True, True, True, True, True, True);
   -- Too many elements

   Bits_D : Boolean_Array (1 .. 0)
     := (1 => True);
   -- Too many elements

   Bits_E : Boolean_Array (1 .. 1)
     := (True, False);
   -- Too many elements

begin
   null;
end Length_Check_Warnings;

2019-08-19  Gary Dismukes  <dismukes@adacore.com>

gcc/ada/

* checks.adb (Length_Mismatch_Info_Message): New function in
Selected_Length_Checks to return a message indicating the
element counts for the mismatched lengths for a failed
compile-time length check.
(Plural_Or_Singular_Ending): Support function in
Length_Mismatch_Info_Message to return either "" or "s", for
concatenating to the end of words.
(Selected_Length_Checks): Pass the result of
Length_Mismatch_Info_Message as an extra warning message to
Compile_Time_Constraint_Error to indicate the mismatched lengths
for a failed compile-time length check.
* sem_util.ads (Compile_Time_Constraint_Error): Add an optional
message formal (Extra_Msg), defaulted to the empty string.
* sem_util.adb (Compile_Time_Constraint_Error): Output an extra
message following the main warning message (when Extra_Msg is
not the empty string).

From-SVN: r274652

5 years ago[Ada] Enable use of GNAT.Sockets for VxWorks RTP
Patrick Bernardi [Mon, 19 Aug 2019 08:36:26 +0000 (08:36 +0000)]
[Ada] Enable use of GNAT.Sockets for VxWorks RTP

The recent introduction of GNAT.Sockets IPv6 support broke support for
VxWorks RTPs due to the use of internal VxWorks kernel calls. This patch
rectifies this by using the VxWorks public API for these routines.

The following RTP should compile successfully on a Development profile
VxWorks kernel that includes the INCLUDE_GETNAMEINFO component:

with GNAT.Sockets;      use GNAT.Sockets;

procedure IPvX is
   procedure Print_Address_Info
     (Host, Serv   : String;
      Family       : Family_Type := Family_Unspec)
   is
      Addresses : Address_Info_Array :=
        Get_Address_Info
          (Host, Serv, Family,
           Passive      => False,
           Numeric_Host => False);
   begin
      Sort (Addresses, IPv6_TCP_Preferred'Access);
   end Print_Address_Info;

begin
   Print_Address_Info ("localhost", "ssh");
end IPvX;

2019-08-19  Patrick Bernardi  <bernardi@adacore.com>

gcc/ada/

* socket.c: Removed the redefinition of getaddrinfo, getnameinfo
and freeaddrinfo to internal VxWorks kernel calls because they
are, well, internal kernel calls and cannot be called from RTPs.
VxWorks provides the necessary components to call these routines
directly.

From-SVN: r274651

5 years ago[Ada] Fix incorrect stub generation for types in instances
Eric Botcazou [Mon, 19 Aug 2019 08:36:21 +0000 (08:36 +0000)]
[Ada] Fix incorrect stub generation for types in instances

This fixes a fallout of a recent change clearing the
Is_Generic_Actual_Type on the implicit full view of a private actual
type in an instance.  This flag is used to help disambiguating formal
types instantiated on the same actual type within an instance, but it
should be cleared outside the instance to let the usual disambiguation
rules apply again to these types outside the instance.

This in particular means that Exp_Dist cannot rely on it to detect
subtypes representing generic actual types, hence the need for the new
predicate.

2019-08-19  Eric Botcazou  <ebotcazou@adacore.com>

gcc/ada/

* exp_dist.adb (Is_Generic_Actual_Subtype): New predicate.
(Build_From_Any_Call, Build_To_Any_Call, Build_TypeCode_Call):
Use it instead of Is_Generic_Actual_Type flag to detect subtypes
representing generic actual types.

From-SVN: r274650

5 years ago[Ada] Improve placement of warning on formals of generic subprograms
Ed Schonberg [Mon, 19 Aug 2019 08:36:17 +0000 (08:36 +0000)]
[Ada] Improve placement of warning on formals of generic subprograms

This patch modifies the handling of warnings on unused formal parameters
of generic subprograms. Previously such warnings were placed on the
formal appearing in the subprogram declaration, in contrast with
warnings on non-generic subprograms, where the warning is placed on the
corresponding entity in the body of the subprogram. This patch makes the
handling of both cases uniform. It is preferable to place the warning in
the body because this also provides a better suggestion for the
placement of an Unreferenced pragma to suppress the warning when desired.

2019-08-19  Ed Schonberg  <schonberg@adacore.com>

gcc/ada/

* sem_warn.adb (Check_References, Generic_Body_Formal): When a
formal parameter of a generic subprogram is not referenced in
the body, place the corresponding warning on the corresponding
entity in the specification of the generic body, as is done for
non-generic subprograms.

gcc/testsuite/

* gnat.dg/warn28.adb, gnat.dg/warn28.ads: New testcase.

From-SVN: r274649

5 years ago[Ada] Factor out the "size for& too small..." error message
Bob Duff [Mon, 19 Aug 2019 08:36:12 +0000 (08:36 +0000)]
[Ada] Factor out the "size for& too small..." error message

Use a constant for the Size_Too_Small_Message, so if it changes, it
won't change in one place but not another.  DRY. It might be better to
move this code out of errout.adb, but that's for another day.

2019-08-19  Bob Duff  <duff@adacore.com>

gcc/ada/

* errout.ads (Size_Too_Small_Message): New constant.
* errout.adb, freeze.adb, sem_ch13.adb: Use it.

From-SVN: r274648

5 years ago[Ada] Fix internal error on subprogram instantiation with -gnatzc
Eric Botcazou [Mon, 19 Aug 2019 08:36:07 +0000 (08:36 +0000)]
[Ada] Fix internal error on subprogram instantiation with -gnatzc

This fixes a fallout of the recent change keeping the
Is_Generic_Instance flag on the wrapper package built for the
instantiation of a generic subprogram.

There is no need to visit the Instance_Spec of an
N_Subprogram_Instantiation node anymore because the regular processing
for an N_Package_Declaration node now does the job for instantiations of
generic subprograms.

The following subprogram must compile again quietly with -gnatzc:

with Gen_Proc;

package RCI is
   pragma Remote_Call_Interface;

   procedure Inst_Proc is new Gen_Proc;

   procedure P (S : String);
end RCI;

generic
procedure Gen_Proc (S : String);
pragma Remote_Call_Interface (Gen_Proc);

with Ada.Text_IO; use Ada.Text_IO;
procedure Gen_Proc (S : String) is
begin
   Put_Line ("Gen_Proc called: " & S);
end Gen_Proc;

2019-08-19  Eric Botcazou  <ebotcazou@adacore.com>

gcc/ada/

* exp_dist.adb (Build_Package_Stubs): Do not specifically visit
the declarations of an N_Subprogram_Instantiation node.

From-SVN: r274647

5 years ago[Ada] Document missing gnatmetric switches
Bob Duff [Mon, 19 Aug 2019 08:36:02 +0000 (08:36 +0000)]
[Ada] Document missing gnatmetric switches

2019-08-19  Bob Duff  <duff@adacore.com>

gcc/ada/

* doc/gnat_ugn/gnat_utility_programs.rst: Document missing
metrics switches.

From-SVN: r274646

5 years ago[Ada] Minor refactorings
Piotr Trojanek [Mon, 19 Aug 2019 08:35:58 +0000 (08:35 +0000)]
[Ada] Minor refactorings

2019-08-19  Piotr Trojanek  <trojanek@adacore.com>

gcc/ada/

* sem_ch12.adb (Get_Unit_Instantiation_Node): Simplify Nkind_In
membership test.
* sem.adb (Depends_On_Main): Whitespace cleanup; only assign a
local variable if needed.

From-SVN: r274645

5 years ago[Ada] Allow reading a borrowed object inside a call to a pledge function
Claire Dross [Mon, 19 Aug 2019 08:35:53 +0000 (08:35 +0000)]
[Ada] Allow reading a borrowed object inside a call to a pledge function

No impact on regular compilation.

2019-08-19  Claire Dross  <dross@adacore.com>

gcc/ada/

* sem_spark.ads, sem_spark.adb (Is_Pledge_Function): New
parameter of the generic. Function used to decide whether a
function is a pledge function.
(Check_Not_Borrowed): Disable check inside the second parameter
of a pledge function for the path borrowed by the first
parameter. Also disable checks for entities inside a Global
contract.

From-SVN: r274644

5 years ago[Ada] Add formal function parameter equality to SPARK containers
Joffrey Huguet [Mon, 19 Aug 2019 08:35:49 +0000 (08:35 +0000)]
[Ada] Add formal function parameter equality to SPARK containers

This patch adds a formal function parameter "=" (L, R : Element_Type) to
SPARK containers. The equality that is used by default for Element_Type
after this patch is the primitive equality and not the predefined any
more. It also allows to use any function with the appropriate signature
for the equality function.

2019-08-19  Joffrey Huguet  <huguet@adacore.com>

gcc/ada/

* libgnat/a-cfdlli.ads, libgnat/a-cfhama.ads,
libgnat/a-cfinve.ads, libgnat/a-cforma.ads,
libgnat/a-cofove.ads, libgnat/a-cofuma.ads,
libgnat/a-cofuve.ads: Add formal function parameter "=" (L, R :
Element_Type) to the generic packages.

From-SVN: r274643

5 years ago[Ada] Opt: clean up left-overs of earlier implementation in comment
Eric Botcazou [Mon, 19 Aug 2019 08:35:44 +0000 (08:35 +0000)]
[Ada] Opt: clean up left-overs of earlier implementation in comment

2019-08-19  Eric Botcazou  <ebotcazou@adacore.com>

gcc/ada/

* opt.ads: Clean up left-overs of earlier implementation in
comment:

From-SVN: r274642

5 years ago[Ada] Representation clause for derived enumeration type is mishandled
Ed Schonberg [Mon, 19 Aug 2019 08:35:40 +0000 (08:35 +0000)]
[Ada] Representation clause for derived enumeration type is mishandled

This patch fixes an old-standing problem with premature freezing. When a
derived type declaration includes a constraint, we generate a subtype
declaration of an anonymous base type, with the constraint given in the
original type declaration, Conceptually, the bounds are converted to the
new base type, and this conversion freezes (prematurely) that base type,
when the bounds are simply literals.  As a result, a representation
clause for the derived type is then rejected or ignared. This procedure
recognizes the simple case of literal bounds in derived enumeration type
declarations, which allows us to indicate that the conversions are not
freeze points, and the subsequent representation clause can be accepted.

2019-08-19  Ed Schonberg  <schonberg@adacore.com>

gcc/ada/

* sem_ch3.adb (Derived_Enumeration_Type): Do no freeze anonymous
base type if the bounds in the derived type declaration are
literals of the type.

gcc/testsuite/

* gnat.dg/rep_clause9.adb: New testcase.

From-SVN: r274641

5 years ago[Ada] Do not skip non-aliasing checking when inlining in GNATprove
Yannick Moy [Mon, 19 Aug 2019 08:35:35 +0000 (08:35 +0000)]
[Ada] Do not skip non-aliasing checking when inlining in GNATprove

When code is inlinined for proof in the special mode for GNATprove, Ada
rules about non-aliasing should still be checked. Now fixed.

There is no impact on compilation.

2019-08-19  Yannick Moy  <moy@adacore.com>

gcc/ada/

* sem_res.adb (Resolve_Call): Check non-aliasing rules before
GNATprove inlining.

From-SVN: r274640

5 years ago[Ada] Further cleanup in inlining machinery
Eric Botcazou [Mon, 19 Aug 2019 08:35:31 +0000 (08:35 +0000)]
[Ada] Further cleanup in inlining machinery

This gets rid of a small issue in the inlining machinery: under very
peculiar circumstances, it would add a pending instantiation for the
body of a generic package at the point of call to an inlined subprogram
of the instance.  That's theoritically problematic because the saved
context is that of the call and not that of the instance in this case,
although the strict conditions ensure that this doesn't make a real
difference in practice.

Now that the machinery can perform the pending instantiations on demand,
we can optimistically add more of them when the instantiations are
analyzed and thus remove the problematic handling at the point of call.

No functional changes.

2019-08-19  Eric Botcazou  <ebotcazou@adacore.com>

gcc/ada/

* inline.adb (Add_Inlined_Body): Do not add pending
instantiations.
* sem_ch12.adb (Needs_Body_Instantiated): New predicate.
(Analyze_Package_Instantiation): Use it to decide whether to add
a pending instantiation for the body of the package.

From-SVN: r274639

5 years ago[Ada] Fix thinko in Acc_Loop_to_gnu
Olivier Hainque [Mon, 19 Aug 2019 08:35:24 +0000 (08:35 +0000)]
[Ada] Fix thinko in Acc_Loop_to_gnu

This fixes a glitch introduced during the initial OpenACC work import
process, causing crashes on any Acc_Parallel + Acc_Loop combination.

2019-08-19  Olivier Hainque  <hainque@adacore.com>

gcc/ada/

* gcc-interface/trans.c (Acc_Loop_to_gnu): Return the openacc
BIND_EXPR node we have constructed on purpose.  Remove unused
variable.

gcc/testsuite/

* gnat.dg/openacc1.adb: New testcase.

From-SVN: r274638

5 years ago[Ada] Define the -fdump-scos option in lang.opt
Pierre-Marie de Rodat [Mon, 19 Aug 2019 08:35:17 +0000 (08:35 +0000)]
[Ada] Define the -fdump-scos option in lang.opt

2019-08-19  Pierre-Marie de Rodat  <derodat@adacore.com>

gcc/ada/

* gcc-interface/lang.opt (fdump-scos): Define.
* gcc-interface/misc.c (gnat_handle_option): Handle
OPT_fdump_scos.

From-SVN: r274637

5 years agoPR target/91441 - Turn off -fsanitize=kernel-address if TARGET_ASAN_SHADOW_OFFSET...
Kito Cheng [Mon, 19 Aug 2019 03:21:44 +0000 (03:21 +0000)]
PR target/91441 - Turn off -fsanitize=kernel-address if TARGET_ASAN_SHADOW_OFFSET is not implemented.

 - -fsanitize=kernel-address will call targetm.asan_shadow_offset ()
   at asan_shadow_offset, so it will crash if TARGET_ASAN_SHADOW_OFFSET
   is not implemented, that's mean -fsanitize=kernel-address is not
   supported for target without TARGET_ASAN_SHADOW_OFFSET implementation.

gcc/ChangeLog:

PR target/91441
* toplev.c (process_options): Check TARGET_ASAN_SHADOW_OFFSET is
implemented for -fsanitize=kernel-address, and merge check logic
with -fsanitize=address.

testsuite/ChangeLog:

PR target/91441
* gcc.target/riscv/pr91441.c: New.

From-SVN: r274631

5 years agore PR fortran/91485 (Erroneous conflict between variable x and operator(.x.))
Steven G. Kargl [Mon, 19 Aug 2019 03:00:54 +0000 (03:00 +0000)]
re PR fortran/91485 (Erroneous conflict between variable x and operator(.x.))

2019-08-18  Steven G. Kargl  <kargl@gcc.gnu.org>

PR fortran/91485
module.c (gfc_match_use): User defined operator cannot conflict with
a rename symbol.

2019-08-18  Steven G. Kargl  <kargl@gcc.gnu.org>

PR fortran/91485
* gfortran.dg/pr91485.f90: New test.

From-SVN: r274630

5 years agoDaily bump.
GCC Administrator [Mon, 19 Aug 2019 00:16:20 +0000 (00:16 +0000)]
Daily bump.

From-SVN: r274629

5 years ago[Darwin, fixincludes] Fix PR83531
C.G. Dogan [Sun, 18 Aug 2019 18:54:13 +0000 (18:54 +0000)]
[Darwin, fixincludes] Fix PR83531

There is no reasonable chance that the SDKs in question will be re-
issued, so the only viable solution is a fixincludes.

2019-08-18  C.G. Dogan <gcc+cgdogan.00@gmail.com>
    Iain Sandoe  <iain@sandoe.co.uk>

PR target/83531
* inclhack.def (darwin_api_availability): New, strip leading
underscores from API_XXXX defines.
* fixincl.x: Regenerate.
* tests/base/os/availability.h: New file.

Co-Authored-By: Iain Sandoe <iain@sandoe.co.uk>
From-SVN: r274624

5 years ago[Darwin, PPC] Fix fail of cpp/assert4.c
Iain Sandoe [Sun, 18 Aug 2019 18:44:58 +0000 (18:44 +0000)]
[Darwin, PPC] Fix fail of cpp/assert4.c

This test needs the cpu and machine asserts to be implemented
which hadn't been done for PPC Darwin.  Fixed thus.

gcc/

2019-08-18  Iain Sandoe  <iain@sandoe.co.uk>

* config/rs6000/darwin.h (TARGET_OS_CPP_BUILTINS): Add asserts
for cpu and machine.  Factor 64/32b builtins.

From-SVN: r274623

5 years agoinstall.texi (Specific, bfin): blackfin.uclinux.org is gone, point to sourceforge...
Gerald Pfeifer [Sun, 18 Aug 2019 11:34:49 +0000 (11:34 +0000)]
install.texi (Specific, bfin): blackfin.uclinux.org is gone, point to sourceforge.net.

* doc/install.texi (Specific, bfin): blackfin.uclinux.org is
gone, point to sourceforge.net.

From-SVN: r274619

5 years agoDaily bump.
GCC Administrator [Sun, 18 Aug 2019 00:16:35 +0000 (00:16 +0000)]
Daily bump.

From-SVN: r274618

5 years agocompiler: support new numeric literal syntax
Ian Lance Taylor [Sat, 17 Aug 2019 23:47:58 +0000 (23:47 +0000)]
compiler: support new numeric literal syntax

    Support 0b, 0o, and hex floats.

    Tested against test/literal2.go in the gc repo.

    Updates golang/go#12711
    Updates golang/go#19308
    Updates golang/go#28493
    Updates golang/go#29008

    Reviewed-on: https://go-review.googlesource.com/c/gofrontend/+/189718

From-SVN: r274614

5 years agocompiler, runtime: allocate defer records on the stack
Ian Lance Taylor [Sat, 17 Aug 2019 23:43:08 +0000 (23:43 +0000)]
compiler, runtime: allocate defer records on the stack

    When a defer is executed at most once in a function body,
    we can allocate the defer record for it on the stack instead
    of on the heap.

    This should make defers like this (which are very common) faster.

    This is a port of CL 171758 from the gc repo.

    Reviewed-on: https://go-review.googlesource.com/c/gofrontend/+/190410

From-SVN: r274613

5 years agore PR fortran/82992 (ICE in create_int_parameter_array, at fortran/module.c:6586)
Steven G. Kargl [Sat, 17 Aug 2019 17:15:42 +0000 (17:15 +0000)]
re PR fortran/82992 (ICE in create_int_parameter_array, at fortran/module.c:6586)

2019-08-17  Steven G. Kargl  <kargl@gcc.gnu.org>

PR fortran/82992
* module.c (gfc_match_use):  When renaming a module entity, search
current namespace for conflicting symbol.

2019-08-17  Steven G. Kargl  <kargl@gcc.gnu.org>

PR fortran/82992
* gfortran.dg/pr71649.f90: Adjust error messages.
* gfortran.dg/use_15.f90: Ditto.
* gfortran.dg/use_rename_8.f90: Ditto.

From-SVN: r274608

5 years agore PR fortran/78739 (ICE in gfc_get_symbol_decl, at fortran/trans-decl.c:1477)
Steven G. Kargl [Sat, 17 Aug 2019 14:39:51 +0000 (14:39 +0000)]
re PR fortran/78739 (ICE in gfc_get_symbol_decl, at fortran/trans-decl.c:1477)

2019-08-17  Steven G. Kargl  <kargl@gcc.gnu.org>

PR fortran/78739
* match.c (gfc_match_st_function):  When matching a statement function,
need to check if the statement function name shadows the function
name.

2019-08-17  Steven G. Kargl  <kargl@gcc.gnu.org>

PR fortran/78739
* fortran.dg/pr78739.f90: New test.

From-SVN: r274605

5 years agore PR fortran/78719 ([F03] ICE in gfc_get_symbol_decl, at fortran/trans-decl.c:1438)
Steven G. Kargl [Sat, 17 Aug 2019 14:27:07 +0000 (14:27 +0000)]
re PR fortran/78719 ([F03] ICE in gfc_get_symbol_decl, at fortran/trans-decl.c:1438)

2019-08-17  Steven G. Kargl  <kargl@gcc.gnu.org>

PR fortran/78719
* decl.c (get_proc_name): Check for a CLASS entity when trying to
add attributes to an entity that already has an explicit interface.

2019-08-17  Steven G. Kargl  <kargl@gcc.gnu.org>

PR fortran/78719
* gfortran.dg/pr78719_1.f90: New test.
* gfortran.dg/pr78719_2.f90: Ditto.
* gfortran.dg/pr78719_3.f90: Ditto.

From-SVN: r274604

5 years agore PR fortran/91471 (f951: internal compiler error: gfc_variable_attr(): Bad array...
Steven G. Kargl [Sat, 17 Aug 2019 14:23:10 +0000 (14:23 +0000)]
re PR fortran/91471 (f951: internal compiler error: gfc_variable_attr(): Bad array reference)

2019-08-17  Steven G. Kargl  <kargl@gcc.gnu.org>

PR fortran/91471
* primary.c (gfc_variable_attr): Remove a gfc_internal_error(),
which cannot be reached by conforming Fortran code, but seems to
be reachable from nonconforming Fortran code.  Treat the AR_UNKNOWN
case as a no-op.

2019-08-17  Steven G. Kargl  <kargl@gcc.gnu.org>

PR fortran/91471
* gfortran.dg/pr91471.f90: New test.

From-SVN: r274603

5 years agore PR libgomp/91473 (Test case libgomp.fortran/appendix-a/a.28.5.f90 is invalid)
Thomas Koenig [Sat, 17 Aug 2019 11:57:25 +0000 (11:57 +0000)]
re PR libgomp/91473 (Test case libgomp.fortran/appendix-a/a.28.5.f90 is invalid)

2019-08-17  Thomas Koenig  <tkoenig@gcc.gnu.org>

    PR fortran/91473
    * testsuite/libgomp.fortran/appendix-a/a.28.5.f90: Add
    -std=legacy so invalid code in the test case is accepted.

From-SVN: r274602

5 years ago* doc/ux.texi (User Experience Guidelines): Update reference.
Gerald Pfeifer [Sat, 17 Aug 2019 10:10:54 +0000 (10:10 +0000)]
* doc/ux.texi (User Experience Guidelines): Update reference.

From-SVN: r274601

5 years agogpl_v3.texi (Copying): Adjust the link to "Why not LGPL".
Gerald Pfeifer [Sat, 17 Aug 2019 10:07:13 +0000 (10:07 +0000)]
gpl_v3.texi (Copying): Adjust the link to "Why not LGPL".

* doc/include/gpl_v3.texi (Copying): Adjust the link to "Why
not LGPL".

From-SVN: r274600

5 years agoPR fortran/68401 Improve allocation error message
Janne Blomqvist [Sat, 17 Aug 2019 05:45:37 +0000 (08:45 +0300)]
PR fortran/68401 Improve allocation error message

Improve the error message that is printed when a memory allocation
fails, by including the location, and the size of the allocation that
failed.

Regtested on x86_64-pc-linux-gnu.

gcc/fortran/ChangeLog:

2019-08-17  Janne Blomqvist  <jb@gcc.gnu.org>

PR fortran/68401
* trans-decl.c (gfc_build_builtin_function_decls): Replace
os_error with os_error_at decl.
* trans.c (trans_runtime_error_vararg): Modify so the error
function decl is passed directly.
(gfc_trans_runtime_error): Pass correct error function decl.
(gfc_trans_runtime_check): Likewise.
(trans_os_error_at): New function.
(gfc_call_malloc): Use trans_os_error_at.
(gfc_allocate_using_malloc): Likewise.
(gfc_call_realloc): Likewise.
* trans.h (gfor_fndecl_os_error): Replace with gfor_fndecl_os_error_at.

libgfortran/ChangeLog:

2019-08-17  Janne Blomqvist  <jb@gcc.gnu.org>

PR fortran/68401
* gfortran.map: Add GFORTRAN_10 node, add _gfortran_os_error_at
symbol.
* libgfortran.h (os_error_at): New prototype.
* runtime/error.c (os_error_at): New function.

From-SVN: r274599

5 years agoruntime: scan write barrier buffer conservatively
Ian Lance Taylor [Sat, 17 Aug 2019 04:35:37 +0000 (04:35 +0000)]
runtime: scan write barrier buffer conservatively

    In gccgo, we insert the write barriers in the frontend, and so we
    cannot completely prevent write barriers on stack writes. So it
    is possible for a bad pointer appearing in the write barrier
    buffer. When flushing the write barrier, treat it the same as
    sacnning the stack. In particular, don't mark a pointer if it
    does not point to an allocated object. We already have similar
    logic in greyobject. With this, hopefully, we can prevent an
    unallocated object from being marked completely.

    Reviewed-on: https://go-review.googlesource.com/c/gofrontend/+/190599

From-SVN: r274598

5 years agoPut the CL into the right dir.
Marek Polacek [Sat, 17 Aug 2019 01:22:18 +0000 (01:22 +0000)]
Put the CL into the right dir.

From-SVN: r274596

5 years agoDaily bump.
GCC Administrator [Sat, 17 Aug 2019 00:16:17 +0000 (00:16 +0000)]
Daily bump.

From-SVN: r274595

5 years agocompiler: print runtime.hex in hex
Ian Lance Taylor [Fri, 16 Aug 2019 22:49:23 +0000 (22:49 +0000)]
compiler: print runtime.hex in hex

    The gc compiler recognizes the type runtime.hex and prints values
    in this type as hex. Do the same here. This makes debugging
    runtime crashes slightly better.

    Reviewed-on: https://go-review.googlesource.com/c/gofrontend/+/190597

From-SVN: r274591

5 years ago* gcc.target/sh/pr54236-6.c: Use -fno-tree-forwprop.
Jeff Law [Fri, 16 Aug 2019 21:51:13 +0000 (15:51 -0600)]
* gcc.target/sh/pr54236-6.c: Use -fno-tree-forwprop.

From-SVN: r274590

5 years agore PR c++/85827 (false positive for -Wunused-but-set-variable because of constexpr-if)
Marek Polacek [Fri, 16 Aug 2019 20:40:36 +0000 (20:40 +0000)]
re PR c++/85827 (false positive for -Wunused-but-set-variable because of constexpr-if)

PR c++/85827
g++.dg/cpp1z/constexpr-if29.C: New test.

From-SVN: r274587

5 years agolibsanitizer, record a local patch.
Iain Sandoe [Fri, 16 Aug 2019 19:49:07 +0000 (19:49 +0000)]
libsanitizer, record a local patch.

2019-08-16  Iain Sandoe  <iain@sandoe.co.uk>

* LOCAL_PATCHES: Add r274585.

From-SVN: r274586

5 years agolibsanitize, asan - reapply r272406
Iain Sandoe [Fri, 16 Aug 2019 19:46:09 +0000 (19:46 +0000)]
libsanitize, asan - reapply r272406

The entry in LOCAL_PATCHES was accidentally omitted.

2019-08-16  Iain Sandoe  <iain@sandoe.co.uk>

* asan/asan_interceptors.h: Reapply r272406.

From-SVN: r274585

5 years agoAs discussed below:
Martin Sebor [Fri, 16 Aug 2019 17:06:25 +0000 (17:06 +0000)]
As discussed below:

  https://gcc.gnu.org/ml/gcc-patches/2019-08/msg00517.html

gcc/testsuite/ChangeLog:
* gcc.dg/struct-ret-1.c: Enable on all targets.

From-SVN: r274579

5 years agotree-sra.c (build_reconstructed_reference): Return NULL_TREE instead of NULL.
Eric Botcazou [Fri, 16 Aug 2019 16:00:25 +0000 (16:00 +0000)]
tree-sra.c (build_reconstructed_reference): Return NULL_TREE instead of NULL.

* tree-sra.c (build_reconstructed_reference): Return NULL_TREE instead
of NULL.  Add guard for broken VIEW_CONVERT_EXPRs.

From-SVN: r274576

5 years agotree.def (TYPE_SIZE): Clarify.
Martin Sebor [Fri, 16 Aug 2019 15:53:29 +0000 (15:53 +0000)]
tree.def (TYPE_SIZE): Clarify.

gcc/ChangeLog:

* tree.def (TYPE_SIZE): Clarify.
* tree.h (TYPE_SIZE, TYPE_SIZE_UNIT, DECL_SIZE): Add comments.

From-SVN: r274575

5 years agore PR testsuite/91458 (FAIL: g++.dg/tree-ssa/pr19807.C -std=gnu++98 scan-tree-dump...
Martin Sebor [Fri, 16 Aug 2019 15:47:25 +0000 (15:47 +0000)]
re PR testsuite/91458 (FAIL: g++.dg/tree-ssa/pr19807.C  -std=gnu++98  scan-tree-dump-times optimized "&MEM\\\\[\\\\(void .\\\\)&a \\\\+ 8B\\\\]" 3)

PR testsuite/91458

gcc/testsuite/ChangeLog:

* g++.dg/tree-ssa/pr19807.C: Use the same search pattern
unconditionally (correcting r272199, PR middle-end/90676).

From-SVN: r274574

5 years agore PR tree-optimization/91109 ([arm] gcc.c-torture/execute/20040709-1.c fails since...
Bernd Edlinger [Fri, 16 Aug 2019 15:34:47 +0000 (15:34 +0000)]
re PR tree-optimization/91109 ([arm] gcc.c-torture/execute/20040709-1.c fails since r273135)

2019-08-16  Bernd Edlinger  <bernd.edlinger@hotmail.de>

        PR tree-optimization/91109
        * lra-int.h (lra_need_for_scratch_reg_p): Declare.
        * lra.c (lra): Use lra_need_for_scratch_reg_p.
        * lra-spills.c (lra_need_for_scratch_reg_p): New function.

From-SVN: r274573

5 years agommx.md (mmxdoublemode): New mode attribute.
Uros Bizjak [Fri, 16 Aug 2019 14:28:12 +0000 (16:28 +0200)]
mmx.md (mmxdoublemode): New mode attribute.

* config/i386/mmx.md (mmxdoublemode): New mode attribute.
(mmx_uavg<mode>3): Macroize expaner from mmx_uavgv8qi3 and
mmx_uavgv4hi3 using MMXMODE12 mode iterator.
(uavg<mode>3_ceil): New expander.
* config/i386/sse.md (uavg<mode>3_ceil): Use ssedoublemode
mode iterator when creating CONST1_RTX.
(<sse2_avx2>_uavg<mode>3<mask_name>): Ditto.
(*<sse2_avx2>_uavg<mode>3<mask_name>): Use ssedoublemode
mode iterator for const1_operand predicate.

From-SVN: r274572

5 years agotree-scalar-evolution.c (follow_ssa_edge_expr): Declare.
Richard Biener [Fri, 16 Aug 2019 13:23:01 +0000 (13:23 +0000)]
tree-scalar-evolution.c (follow_ssa_edge_expr): Declare.

2019-08-16  Richard Biener  <rguenther@suse.de>

* tree-scalar-evolution.c (follow_ssa_edge_expr): Declare.
(follow_ssa_edge_binary): Call follow_ssa_edge_expr instead of
follow_ssa_edge.
(follow_ssa_edge_in_condition_phi_branch): Likewise.
(analyze_evolution_in_loop): Likewise.
(follow_ssa_edge, follow_ssa_edge_in_rhs): Inline into ...
(follow_ssa_edge_expr): ... here.  Refactor code.

From-SVN: r274571

5 years agore PR target/91469 (ICE in extract_insn, at recog.c:2310 since r274481)
Richard Biener [Fri, 16 Aug 2019 13:17:04 +0000 (13:17 +0000)]
re PR target/91469 (ICE in extract_insn, at recog.c:2310 since r274481)

2019-08-16  Richard Biener  <rguenther@suse.de>

PR target/91469
* config/i386/i386-features.c
(general_scalar_chain::replace_with_subreg): Stop at memory operands.

* gcc.target/i386/pr91469-1.c: New testcase.
* gcc.target/i386/pr91469-2.c: Likewise.

From-SVN: r274570

5 years agobaseline_symbols.txt: Update.
Uros Bizjak [Fri, 16 Aug 2019 12:30:40 +0000 (14:30 +0200)]
baseline_symbols.txt: Update.

* config/abi/post/alpha-linux-gnu/baseline_symbols.txt: Update.

From-SVN: r274569

5 years agoAllow automatics in equivalences
Mark Eggleston [Fri, 16 Aug 2019 10:09:57 +0000 (10:09 +0000)]
Allow automatics in equivalences

If a variable with an automatic attribute appears in an
equivalence statement the storage should be allocated on the
stack.

Note: most of this patch was provided by Jeff Law  <law@redhat.com>.

From-SVN: r274565

5 years ago[gensupport] PR 91255: Do not error out immediately on set_attr_alternative with...
Kyrylo Tkachov [Fri, 16 Aug 2019 09:32:36 +0000 (09:32 +0000)]
[gensupport] PR 91255: Do not error out immediately on set_attr_alternative with define_subst

I'm trying to add a define_subst use in the arm backend but am getting many build errors complaining about:
`set_attr_alternative' is unsupported by `define_subst'

Looking at the gensupport.c code it iterates over all define_insns and errors if any of them have set_attr_alternative.

The usecase I'm targetting doesn't involve patterns with set_attr_alternative, so I would like to make the define_subst handling
more robust to only error out if the define_subst is actually attempted on a set_attr_alternative.

This patch produces the error only if the set_attr_alternative attr matches the subst name.
This allows a build of the arm backend with a define_subst usage to succeed.

PR other/91255
* gensupport.c (has_subst_attribute): Error out on set_attr_alternative
only if subst_name matches curr_attr string.

From-SVN: r274564

5 years agotree-ssa-forwprop.c (simplify_builtin_call): Do not remove stmt at gsi_p, instead...
Richard Biener [Fri, 16 Aug 2019 09:27:34 +0000 (09:27 +0000)]
tree-ssa-forwprop.c (simplify_builtin_call): Do not remove stmt at gsi_p, instead replace it with a NOP removed later.

2019-08-16  Richard Biener  <rguenther@suse.de>

* tree-ssa-forwprop.c (simplify_builtin_call): Do not remove
stmt at gsi_p, instead replace it with a NOP removed later.
(pass_forwprop::execute): Fully propagate lattice, DCE stmts
that became dead because of that.

fortran/
* trans-intrinsic.c (gfc_conv_intrinsic_findloc): Initialize
forward_branch to avoid bogus uninitialized warning.

* gcc.dg/tree-ssa/forwprop-31.c: Adjust.

From-SVN: r274563

5 years agoAdd missed to a opt-info dump.
Martin Liska [Fri, 16 Aug 2019 08:10:55 +0000 (10:10 +0200)]
Add missed to a opt-info dump.

2019-08-16  Martin Liska  <mliska@suse.cz>

PR ipa/91447
* g++.dg/ipa/ipa-icf-4.C: Add -missed for target that
don't have aliases.

From-SVN: r274562

5 years agoAdd type to VR_VARYING.
Aldy Hernandez [Fri, 16 Aug 2019 06:54:23 +0000 (06:54 +0000)]
Add type to VR_VARYING.

From-SVN: r274561

5 years agorequire trampolines for pr85044
Alexandre Oliva [Fri, 16 Aug 2019 03:39:02 +0000 (03:39 +0000)]
require trampolines for pr85044

Testcases that require support for trampolines should be marked as
such; gcc.target/i386/pr85044.c was missing it.  Fixed.

for  gcc/testsuite/ChangeLog

* gcc.target/i386/pr85044.c: Require support for trampolines.

From-SVN: r274560

5 years agoi386/asm-4 test: use amd64's natural addressing mode on all OSs
Alexandre Oliva [Fri, 16 Aug 2019 03:38:49 +0000 (03:38 +0000)]
i386/asm-4 test: use amd64's natural addressing mode on all OSs

gcc.target/i386/asm-4.c uses amd64's natural PC-relative addressing
mode on a single platform, using the 32-bit absolute addressing mode
elsewhere.  There's no point in giving up amd64's natural addressing
mode and insisting on the 32-bit one when we're targeting amd64, and
having to make explicit exceptions for systems where that's found not
to work for whatever reason.  If we just use the best-suited way to
take the address of a function behind the compiler's back on each
target variant, we're less likely to hit unexpected failures.

for  gcc/testsuite/ChangeLog

* gcc.target/i386/asm-4.c: Use amd64 natural addressing mode
on all __LP64__ targets.

From-SVN: r274559

5 years agouse __builtin_alloca, drop non-standard alloca.h
Alexandre Oliva [Fri, 16 Aug 2019 03:38:36 +0000 (03:38 +0000)]
use __builtin_alloca, drop non-standard alloca.h

Since alloca.h is not ISO C, most of our alloca-using tests seem to
rely on __builtin_alloca instead of including the header and calling
alloca.  This patch extends this practice to some of the exceptions I
found in gcc.target, marking them as requiring a functional alloca
while at that.

for  gcc/testsuite/ChangeLog

* gcc.target/arc/interrupt-6.c: Use __builtin_alloca, require
effective target support for alloca, drop include of alloca.h.
* gcc.target/i386/pr80969-3.c: Likewise.
* gcc.target/sparc/setjmp-1.c: Likewise.
* gcc.target/x86_64/abi/ms-sysv/gen.cc: Likewise.
* gcc.target/x86_64/abi/ms-sysv/ms-sysv.c: Likewise.

From-SVN: r274558

5 years agoMatch ld besides collect2 in gcov test
Alexandre Oliva [Fri, 16 Aug 2019 03:38:23 +0000 (03:38 +0000)]
Match ld besides collect2 in gcov test

The regexp that checks that -lgcov is linked in when --coverage is
passed to the compiler driver requires the command line to match
'/collect2'.  Some of our targets don't match that, but they match /ld
or ${target_alias}-ld depending on the testing scenario, so I'd like
to tweak the test to match those as well.

for  gcc/testsuite/ChangeLog

* gcc.misc-tests/options.exp: Match /ld and -ld besides
/collect2.

From-SVN: r274557

5 years agoaddress change
Alexandre Oliva [Fri, 16 Aug 2019 03:38:09 +0000 (03:38 +0000)]
address change

Oops, I forgot to update the MAINTAINERS file a couple of months ago,
when the address there stopped working.

Honestly, I haven't really had much involvement with the frv, mn10300
or sh ports for almost 15 years, so I wouldn't mind if someone else
stepped up and took over, but until someone does, I don't mind
reviewing the occasional patch, so it's best if it can reach me ;-)

for  ChangeLog

* MAINTAINERS: aoliva from @redhat.com to @gcc.gnu.org.

From-SVN: r274556

5 years agoDaily bump.
GCC Administrator [Fri, 16 Aug 2019 00:16:16 +0000 (00:16 +0000)]
Daily bump.

From-SVN: r274555

5 years agore PR fortran/91443 (-Wargument-mismatch does not catch mismatch for global procedure)
Thomas Koenig [Thu, 15 Aug 2019 22:52:40 +0000 (22:52 +0000)]
re PR fortran/91443 (-Wargument-mismatch does not catch mismatch for global procedure)

2019-08-15  Thomas Koenig  <tkoenig@gcc.gnu.org>

PR fortran/91443
* frontend-passes.c (check_externals_expr): New function.
(check_externals_code): New function.
(gfc_check_externals): New function.
* gfortran.h (debug): Add prototypes for gfc_symbol * and
gfc_expr *.
(gfc_check_externals): Add prototype.
* interface.c (compare_actual_formal): Do not complain about
alternate returns if the formal argument is optional.
(gfc_procedure_use): Handle cases when an error has been issued
previously.  Break long line.
* parse.c (gfc_parse_file): Call gfc_check_externals for all
external procedures.
* resolve.c (resolve_global_procedure): Remove checking of
argument list.

2019-08-15  Thomas Koenig  <tkoenig@gcc.gnu.org>

PR fortran/91443
* gfortran.dg/argument_checking_19.f90: New test.
* gfortran.dg/altreturn_10.f90: Change dg-warning to dg-error.
* gfortran.dg/dec_union_11.f90: Add -std=legacy.
* gfortran.dg/hollerith8.f90: Likewise. Remove warning for
Hollerith constant.
* gfortran.dg/integer_exponentiation_2.f90: New subroutine gee_i8;
use it to avoid type mismatches.
* gfortran.dg/pr41011.f: Add -std=legacy.
* gfortran.dg/whole_file_1.f90: Change warnings to errors.
* gfortran.dg/whole_file_2.f90: Likewise.

From-SVN: r274551

5 years agoPR c++/90393 - ICE with thow in ?:
Jason Merrill [Thu, 15 Aug 2019 21:55:19 +0000 (17:55 -0400)]
PR c++/90393 - ICE with thow in ?:

My previous patch for 64372 was incomplete: it only stopped making the
non-throw argument into an rvalue, lvalue_kind still considered the ?:
expression to be an rvalue, leaving us worse than before.

PR c++/64372, DR 1560 - Gratuitous lvalue-to-rvalue conversion in ?:
* tree.c (lvalue_kind): Handle throw in one arm.
* typeck.c (rationalize_conditional_expr): Likewise.
(cp_build_modify_expr): Likewise.

From-SVN: r274550

5 years agoi386: Separate costs of pseudo registers from hard registers
H.J. Lu [Thu, 15 Aug 2019 18:15:33 +0000 (18:15 +0000)]
i386: Separate costs of pseudo registers from hard registers

processor_costs has costs of RTL expressions with pseudo registers and
and costs of hard register moves:

1. Costs of RTL expressions are used to generate the most efficient RTL
operations with pseudo registers.

2. Costs of hard register moves are used by register allocator to
decide how to allocate and move hard registers.

Since relative costs of pseudo register load and store versus pseudo
register moves in RTL expressions can be different from relative costs
of hard registers, we should separate costs of RTL expressions with
pseudo registers from costs of hard registers so that register allocator
and RTL expressions can be improved independently.

This patch moves costs of hard register moves to the new hard_register
field and duplicates costs of moves which are also used for costs of RTL
expressions.

PR target/90878
* config/i386/i386.c (inline_memory_move_cost): Use hard_register
for costs of hard register moves.
(ix86_register_move_cost): Likewise.
* config/i386/i386.h (processor_costs): Move costs of hard
register moves to hard_register.  Add int_load, int_store,
xmm_move, ymm_move, zmm_move, sse_to_integer, integer_to_sse,
sse_load, sse_store, sse_unaligned_load and sse_unaligned_store
for costs of RTL expressions.
* config/i386/x86-tune-costs.h: Move costs of hard register
moves to hard_register.  Duplicate int_load, int_store,
xmm_move, ymm_move, zmm_move, sse_to_integer, integer_to_sse,
sse_load, sse_store for costs of RTL expressions.

From-SVN: r274543

5 years agoPR libstdc++/91456 make INVOKE<R> work with uncopyable prvalues
Jonathan Wakely [Thu, 15 Aug 2019 16:07:27 +0000 (17:07 +0100)]
PR libstdc++/91456 make INVOKE<R> work with uncopyable prvalues

In C++17 a function can return a prvalue of a type that cannot be moved
or copied. The current implementation of std::is_invocable_r uses
std::is_convertible to test the conversion to R required by INVOKE<R>.
That fails for non-copyable prvalues, because std::is_convertible is
defined in terms of std::declval which uses std::add_rvalue_reference.
In C++17 conversion from R to R involves no copies and so is not the
same as conversion from R&& to R.

This commit changes std::is_invocable_r to check the conversion without
using std::is_convertible.

std::function also contains a similar check using std::is_convertible,
which can be fixed by simply reusing std::is_invocable_r (but because
std::is_invocable_r is not defined for C++11 it uses the underlying
std::__is_invocable_impl trait directly).

PR libstdc++/91456
* include/bits/std_function.h (__check_func_return_type): Remove.
(function::_Callable): Use std::__is_invocable_impl instead of
__check_func_return_type.
* include/std/type_traits (__is_invocable_impl): Add another defaulted
template parameter. Define a separate partial specialization for
INVOKE and INVOKE<void>. For INVOKE<R> replace is_convertible check
with a check that models delayed temporary materialization.
* testsuite/20_util/function/91456.cc: New test.
* testsuite/20_util/is_invocable/91456.cc: New test.

From-SVN: r274542

5 years agoAdd r274540 to LOCAL_PATCHES.
Martin Liska [Thu, 15 Aug 2019 15:32:46 +0000 (17:32 +0200)]
Add r274540 to LOCAL_PATCHES.

2019-08-15  Martin Liska  <mliska@suse.cz>

* LOCAL_PATCHES: Add r274540

From-SVN: r274541

5 years agoReapply missing patch for libsanitizer.
Martin Liska [Thu, 15 Aug 2019 15:31:46 +0000 (17:31 +0200)]
Reapply missing patch for libsanitizer.

2019-08-15  Martin Liska  <mliska@suse.cz>

* tsan/tsan_rtl_ppc64.S: Reapply.

From-SVN: r274540

5 years agoRemove TARGET_SETUP_INCOMING_VARARG_BOUNDS
Richard Sandiford [Thu, 15 Aug 2019 14:26:14 +0000 (14:26 +0000)]
Remove TARGET_SETUP_INCOMING_VARARG_BOUNDS

TARGET_SETUP_INCOMING_VARARG_BOUNDS seems to be an unused vestige of the
MPX support.

2019-08-15  Richard Sandiford  <richard.sandiford@arm.com>

gcc/
* target.def (setup_incoming_vararg_bounds): Remove.
* doc/tm.texi.in (TARGET_SETUP_INCOMING_VARARG_BOUNDS): Remove.
* doc/tm.texi: Regenerate.
* targhooks.c (default_setup_incoming_vararg_bounds): Delete.
* targhooks.h (default_setup_incoming_vararg_bounds): Likewise.
* config/i386/i386.c (ix86_setup_incoming_vararg_bounds): Likewise.
(TARGET_SETUP_INCOMING_VARARG_BOUNDS): Likewise.

From-SVN: r274539

5 years ago[libsanitizer] Fix PR bootstrap/91455
Iain Sandoe [Thu, 15 Aug 2019 14:13:10 +0000 (14:13 +0000)]
[libsanitizer] Fix PR bootstrap/91455

If a target does not support libbacktrace, it might still the include
for $(top_srcdir).

Regenerate the built files using automake-1.15.1

libsanitizer/

2019-08-15  Iain Sandoe  <iain@sandoe.co.uk>

PR bootstrap/91455
* Makefile.in: Regenerated.
* aclocal.m4: Likewise.
* asan/Makefile.in: Likewise.
* configure: Likewise.
* interception/Makefile.in: Likewise.
* libbacktrace/Makefile.in: Likewise.
* lsan/Makefile.in: Likewise.
* sanitizer_common/Makefile.am: Include top_srcdir unconditionally.
* sanitizer_common/Makefile.in: Regenerated.
* tsan/Makefile.in: Likewise.
* ubsan/Makefile.in: Likewise.

From-SVN: r274538

5 years agoMSP430: Fix lines over 80 characters long in config/msp430/*.{c,h} files
Jozef Lawrynowicz [Thu, 15 Aug 2019 12:59:04 +0000 (12:59 +0000)]
MSP430: Fix lines over 80 characters long in config/msp430/*.{c,h} files

2019-08-15  Jozef Lawrynowicz  <jozef.l@mittosystems.com>

MSP430: Fix lines over 80 characters long in
config/msp430/*.{c,h} files

* config/msp430/driver-msp430.c (msp430_select_cpu): Fix format
specifier in string.
(msp430_select_hwmult_lib): Split line more than 80 characters long.
* config/msp430/msp430-devices.c (msp430_extract_mcu_data): Remove
redundant old comment.
* config/msp430/msp430-protos.h (msp430_output_aligned_decl_common):
Split line more than 80 characters long.
* config/msp430/msp430.c (msp430_option_override): Likewise.
(msp430_return_in_memory): Likewise.
(msp430_gimplify_va_arg_expr): Likewise.
(TARGET_ADDR_SPACE_LEGITIMATE_ADDRESS_P): Likewise.
(msp430_legitimate_constant): Likewise.
(TARGET_ALLOCATE_STACK_SLOTS_FOR_ARGS): Likewise.
(msp430_attr): Likewise.
(msp430_data_attr): Likewise.
(msp430_start_function): Likewise.
(gen_prefix): Likewise.
(msp430_init_sections): Likewise.
(msp430_select_section): Likewise.
(msp430_function_section): Likewise.
(msp430_unique_section): Likewise.
(msp430_output_aligned_decl_common): Likewise.
(msp430_do_not_relax_short_jumps): Likewise.
(msp430_init_builtins): Likewise.
(msp430_expand_delay_cycles): Likewise.
(msp430_expand_prologue): Likewise.
(msp430_expand_epilogue): Likewise.
(msp430_expand_helper): Likewise.
(msp430_split_movsi): Likewise.
(msp430_print_operand): Likewise.
(msp430_return_addr_rtx): Likewise.
(msp430x_extendhisi): Likewise.
* config/msp430/msp430.h (STARTFILE_SPEC): Likewise.
(ASM_SPEC): Likewise.
Remove very obvious comments.
(LIB_SPEC): Split line more than 80 characters long.
(EH_RETURN_HANDLER_RTX): Likewise.
(HARD_REGNO_CALLER_SAVE_MODE): Likewise.

From-SVN: r274537

5 years agoMSP430: Fix whitespace errors and incorrect indentation in config/msp430/*.{c,h}...
Jozef Lawrynowicz [Thu, 15 Aug 2019 12:55:33 +0000 (12:55 +0000)]
MSP430: Fix whitespace errors and incorrect indentation in config/msp430/*.{c,h} files

2019-08-15  Jozef Lawrynowicz  <jozef.l@mittosystems.com>

MSP430: Fix whitespace errors and incorrect indentation in
config/msp430/*.{c,h} files

* config/msp430/driver-msp430.c (msp430_select_cpu): Fix indentation.
(msp430_select_hwmult_lib): Likewise.
* config/msp430/msp430-devices.c (parse_devices_csv_1): Likewise.
(msp430_extract_mcu_data): Likewise.
(struct t_msp430_mcu_data): Likewise.
* config/msp430/msp430.c (struct machine_function): Remove whitespace
before left square bracket.
(msp430_option_override): Fix indentation.
(msp430_hard_regno_nregs_with_padding): Likewise.
(msp430_initial_elimination_offset): Likewise.
(msp430_special_register_convention_p): Remove whitespace before left
square bracket and after exclamation mark.
(msp430_evaluate_arg): Likewise.
(msp430_callee_copies): Fix indentation.
(msp430_gimplify_va_arg_expr): Likewise.
(msp430_function_arg_advance): Remove whitespace before left square
bracket.
(reg_ok_for_addr): Likewise.
(msp430_preserve_reg_p): Likewise.
(msp430_compute_frame_info): Likewise.
(msp430_asm_output_addr_const_extra): Add space between function name
and open parenthesis.
(has_section_name): Fix indentation.
(msp430_attr): Remove trailing whitespace.
(msp430_section_attr): Likewise.
(msp430_data_attr): Likewise.
(struct msp430_attribute_table): Fix comment and whitespace.
(msp430_start_function): Remove whitespace before left square bracket.
Add space between function name and open parenthesis.
(msp430_select_section): Remove trailing whitespace.
(msp430_section_type_flags): Remove trailing whitespace.
(msp430_unique_section): Remove space before closing parenthesis.
(msp430_output_aligned_decl_common): Change 8 spaces to a tab.
(msp430_builtins): Remove whitespace before left square bracket.
(msp430_init_builtins): Fix indentation.
(msp430_expand_prologue): Remove whitespace before left square bracket.
Remove space before closing parenthesis.
(msp430_expand_epilogue): Remove whitespace before left square bracket.
(msp430_split_movsi): Remove space before closing parenthesis.
(helper_function_name_mappings): Fix indentation.
(msp430_use_f5_series_hwmult): Fix whitespace.
(use_32bit_hwmult): Likewise.
(msp430_no_hwmult): Likewise.
(msp430_output_labelref): Remove whitespace before left square bracket.
(msp430_print_operand_raw): Likewise.
(msp430_print_operand_addr): Likewise.
(msp430_print_operand): Add two spaces after '.' in comment.
Fix trailing whitespace.
(msp430x_extendhisi): Fix indentation.
* config/msp430/msp430.h (TARGET_CPU_CPP_BUILTINS): Change 8 spaces to
tab.
(PC_REGNUM): Likewise.
(STACK_POINTER_REGNUM): Likewise.
(CC_REGNUM): Likewise.

From-SVN: r274536

5 years agore PR target/91454 (ICE in get_attr_avx_partial_xmm_update, at config/i386/i386.md...
Richard Biener [Thu, 15 Aug 2019 12:44:23 +0000 (12:44 +0000)]
re PR target/91454 (ICE in get_attr_avx_partial_xmm_update, at config/i386/i386.md:1804 since r274481)

2019-08-15  Richard Biener  <rguenther@suse.de>

PR target/91454
* config/i386/i386-features.c (gen_gpr_to_xmm_move_src): New
helper.
(general_scalar_chain::make_vector_copies): Use it.

From-SVN: r274535

5 years agoImplement P0848R3, Conditionally Trivial Special Member Functions.
Jason Merrill [Thu, 15 Aug 2019 12:38:50 +0000 (08:38 -0400)]
Implement P0848R3, Conditionally Trivial Special Member Functions.

With Concepts, overloads of special member functions can differ in
constraints, and this paper clarifies how that affects class properties: if
a class has a more constrained trivial copy constructor and a less
constrained non-trivial copy constructor, it is still trivially copyable.

* tree.c (special_memfn_p): New.
* class.c (add_method): When overloading, hide ineligible special
member fns.
(check_methods): Set TYPE_HAS_COMPLEX_* here.
* decl.c (grok_special_member_properties): Not here.
* name-lookup.c (push_class_level_binding_1): Move overloaded
functions case down, accept FUNCTION_DECL as target_decl.

From-SVN: r274534

5 years agore PR tree-optimization/91445 (After memset, logical && operator produces false resul...
Richard Biener [Thu, 15 Aug 2019 12:05:31 +0000 (12:05 +0000)]
re PR tree-optimization/91445 (After memset, logical && operator produces false result, optimization level >=O1)

2019-08-15  Richard Biener  <rguenther@suse.de>

PR tree-optimization/91445
* gcc.dg/torture/pr91445.c: New testcase.

From-SVN: r274533

5 years agofunction.c (assign_parm_setup_reg): Handle misaligned stack arguments.
Bernd Edlinger [Thu, 15 Aug 2019 11:37:21 +0000 (11:37 +0000)]
function.c (assign_parm_setup_reg): Handle misaligned stack arguments.

2019-08-15  Bernd Edlinger  <bernd.edlinger@hotmail.de>

        * function.c (assign_parm_setup_reg): Handle misaligned stack arguments.

From-SVN: r274531

5 years agoClean up dead condition for operators in DCE.
Martin Liska [Thu, 15 Aug 2019 11:29:37 +0000 (13:29 +0200)]
Clean up dead condition for operators in DCE.

2019-08-15  Martin Liska  <mliska@suse.cz>

* tree-ssa-dce.c (propagate_necessity): We can't reach now
operators with no arguments.
(eliminate_unnecessary_stmts): Likewise here.

From-SVN: r274529

5 years agoc-common.c (c_stddef_cpp_builtins): When the GIMPLE FE is enabled, define __SIZETYPE__.
Richard Biener [Thu, 15 Aug 2019 11:26:19 +0000 (11:26 +0000)]
c-common.c (c_stddef_cpp_builtins): When the GIMPLE FE is enabled, define __SIZETYPE__.

2019-08-15  Richard Biener  <rguenther@suse.de>

c-family/
* c-common.c (c_stddef_cpp_builtins): When the GIMPLE FE is
enabled, define __SIZETYPE__.

* gcc.dg/pr80170.c: Adjust to use __SIZETYPE__.

From-SVN: r274528