gcc.git
5 years ago[Ada] Add Remove primitive on functional maps
Claire Dross [Tue, 17 Sep 2019 08:03:02 +0000 (08:03 +0000)]
[Ada] Add Remove primitive on functional maps

A primitive for removing a mapping from a functional map has been added.

2019-09-17  Claire Dross  <dross@adacore.com>

gcc/ada/

* libgnat/a-cofuma.ads, libgnat/a-cofuma.adb (Remove): New
function which returns a copy of the input container without a
given mapping.

From-SVN: r275797

5 years ago[Ada] Fix rounding of fixed-point arithmetic operation
Yannick Moy [Tue, 17 Sep 2019 08:02:56 +0000 (08:02 +0000)]
[Ada] Fix rounding of fixed-point arithmetic operation

Fixed-point multiplication, division and conversion may lead to calling
the function Double_Divide in s-arit64 runtime unit. In the special case
where arguments have the special values X = -2**63 and the absolute
value of the product of its other arguments Y*Z = 2**64, the rounded
value should be either -1 or 1, but currently Double_Divide returns a
quotient of 0.

Rounding only applies when Round attribute is called on the arithmetic
operation for a decimal fixed-point result, or the result type is
integer.

This fixes correctly applies rounding away from 0 in that special case.

2019-09-17  Yannick Moy  <moy@adacore.com>

gcc/ada/

* libgnat/s-arit64.adb (Double_Divide): Correctly handle the
special case when rounding.

gcc/testsuite/

* gnat.dg/fixedpnt7.adb: New testcase.

From-SVN: r275796

5 years ago[Ada] Missing propagation of Has_Predicates in cloned subtypes
Javier Miranda [Tue, 17 Sep 2019 08:02:51 +0000 (08:02 +0000)]
[Ada] Missing propagation of Has_Predicates in cloned subtypes

The frontend silently skips propagating attributes Has_Predicates and
Predicate function to the internally built cloned subtype. This change
does not affect the functionality of the compiler; it leaves more clean
the decoration of internal entities.

2019-09-17  Javier Miranda  <miranda@adacore.com>

gcc/ada/

* sem_ch3.adb (Complete_Private_Subtype): Propagate attributes
Has_Attributes and Predicate_Function to the cloned subtype.

From-SVN: r275795

5 years ago[Ada] Fix ineffective -gnatyN for separate compilation units
Eric Botcazou [Tue, 17 Sep 2019 08:02:46 +0000 (08:02 +0000)]
[Ada] Fix ineffective -gnatyN for separate compilation units

This fixes a recent regression introduced in the machinery giving style
warnings: the -gnatyN switch no longer cancels an earlier -gnaty switch
for separate compilation units.

Running this command:

  gcc -c slib.adb -gnatyaAbcefhiIklmM25OnprStux -gnatyN

On the following sources:

package Slib is
   procedure I_Am_Short;
end Slib;

with Ada.Text_IO; use Ada.Text_IO;

package body Slib is
   --  have a long line here as well.
   procedure                I_Am_Short is               separate;
end Slib;

separate (Slib)

procedure I_Am_Short is
begin
    Put_Line (".......................................................");
end I_Am_Short;

Should execute silently.

2019-09-17  Eric Botcazou  <ebotcazou@adacore.com>

gcc/ada/

* sem.adb (Do_Analyze): Save Style_Check_Max_Line_Length on
entry and restore it on exit instead of recomputing it.

From-SVN: r275794

5 years ago[Ada] Update the character type comment in exp_dbug.ads
Tom Tromey [Tue, 17 Sep 2019 08:02:41 +0000 (08:02 +0000)]
[Ada] Update the character type comment in exp_dbug.ads

The character type comment in exp_dbug.ads documented the QU and QW
encodings, but did not document the plain "Qc" encoding, where 'c' is
the character itself.  This patch updates the comment to follow the
implementation.

2019-09-17  Tom Tromey  <tromey@adacore.com>

gcc/ada/

* exp_dbug.ads: Update character type comment.

From-SVN: r275793

5 years ago[Ada] Minor fixes mostly in comments of runtime arithmetic unit
Yannick Moy [Tue, 17 Sep 2019 08:02:35 +0000 (08:02 +0000)]
[Ada] Minor fixes mostly in comments of runtime arithmetic unit

Multiple comments in functions Double_Divide and Scaled_Divide were
incorrect. Now fixed.

Also change the expression (if Zhi /= 0 then Ylo * Zhi else 0) to the
simpler equivalent (Ylo * Zhi) in Double_Divide.

Also add a comment explaining why the implementation of Algorithm D for
multiple-precision division from the 2nd Edition of The Art of Computer
Programming does not suffer from two bugs discovered on that version.

There is no impact on execution, hence no test.

2019-09-17  Yannick Moy  <moy@adacore.com>

gcc/ada/

* libgnat/s-arit64.adb (Double_Divide): Simplify needlessly
complex computation. Fix comments.
(Scaled_Divide): Fix comments. Explain why implementation does
not suffer from bugs in Algorithm D from 2nd Edition of TAOCP.

From-SVN: r275792

5 years ago[Ada] Raise Constraint_Error in overflow case involving rounding
Yannick Moy [Tue, 17 Sep 2019 08:02:30 +0000 (08:02 +0000)]
[Ada] Raise Constraint_Error in overflow case involving rounding

Function Scaled_Divide in s-arith runtime unit computes the combined
multiplication and division of its arguments ((X*Y) / Z). In a very
special case where the quotient computed before rounding is 2**64-1,
then rounding may lead to undesirable wrap-around, leading to a computed
quotient of 0 instead of raising Constraint_Error as expected.

This function is only called in the runtime for arithmetic operations
involving fixed-point types. Rounding is performed only when the target
type is of a decimal fixed-point type, and the attribute 'Round of the
type is used to round the result of the arithmetic operation.

This fix correctly raises Constraint_Error in this special case.

2019-09-17  Yannick Moy  <moy@adacore.com>

gcc/ada/

* libgnat/s-arit64.adb (Scaled_Divide): Add protection against
undesirable wrap-around.

gcc/testsuite/

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

From-SVN: r275791

5 years ago[Ada] Fix possible suppressed overflows in arithmetic run-time
Yannick Moy [Tue, 17 Sep 2019 08:02:25 +0000 (08:02 +0000)]
[Ada] Fix possible suppressed overflows in arithmetic run-time

Function Double_Divide computes the division of its parameters
(X / (Y*Z)) in a way that avoids overflows on signed integers, except in
two specific cases, when X = -2**63, abs(Y) = abs(Z) = 1 (leading to an
overflow in -To_Int(Qu)) and when X = -2**63 and Y*Z is large enough
that Qu=0 and so the remainder Ru=2**63 (leading to an overflow in
-To_Int(Ru)), for example with Y = Z = 2**32-1.

This fix avoids the overflow by applying "-" on the unsigned value
before the conversion to signed integer.

The issue cannot manifest as an overflow check failure in our runtime,
as overflow checks are suppressed by using pragma Suppress at the start
of the file. Assuming a machine implements wraparound semantics here,
the result was correct even with the suppressed overflow.

As a result, there can be no test showing the difference.

2019-09-17  Yannick Moy  <moy@adacore.com>

gcc/ada/

* libgnat/s-arit64.adb (Double_Divide): Fix two possible
overflows.

From-SVN: r275790

5 years ago[Ada] Force even timestamp in Windows ALI files
Dmitriy Anisimkov [Tue, 17 Sep 2019 08:02:20 +0000 (08:02 +0000)]
[Ada] Force even timestamp in Windows ALI files

Old versions forced even file timestamp in Windows in
GNAT.OS_Lib.GM_Split implementation. We removed this time distortion in
GNAT.OS_Lib.GM_Split a few commits. But gprbuild became unnecessary
recompiling the sources in 50% cases, when the source has odd file
timestamp. This commit is restoring the compatibility between new
gprbuild and old GNAT compilers.

2019-09-17  Dmitriy Anisimkov  <anisimko@adacore.com>

gcc/ada/

* make_util.ads (On_Windows): Move...
* osint.ads (On_Windows): There.
* osint.adb (OS_Time_To_GNAT_Time): If odd incremented on
Windows before conversion to Time_Stamp_Type.

From-SVN: r275789

5 years ago[Ada] GNATprove: avoid crash on illegal borrow during package elaboration
Yannick Moy [Tue, 17 Sep 2019 08:02:15 +0000 (08:02 +0000)]
[Ada] GNATprove: avoid crash on illegal borrow during package elaboration

In GNATprove, a borrow during package elaboration is illegal, but a
crash could be issued when analyzing the corresponding declaration. Now
avoid analyzing the declaration in that case.

There is no test as this does not impact compilation.

2019-09-17  Yannick Moy  <moy@adacore.com>

gcc/ada/

* sem_spark.adb (Check_Declaration): Do not check the assignment
from an illegal declaration.

From-SVN: r275788

5 years ago[Ada] Clarify documentation for Stack_Usage
Bob Duff [Tue, 17 Sep 2019 08:02:09 +0000 (08:02 +0000)]
[Ada] Clarify documentation for Stack_Usage

Clarify the documentation for Stack_Usage (both comments in the code,
and user documentation) to note that tools like Valgrind won't work.

2019-09-17  Bob Duff  <duff@adacore.com>

gcc/ada/

* doc/gnat_ugn/gnat_and_program_execution.rst: Clarify
documentation.
* gnat_ugn.texi: Regenerate.
* libgnat/s-stausa.ads: Clarify comments.

From-SVN: r275787

5 years ago[Ada] Don't accept illegal (e.g., Integer'(null)) generic actuals
Steve Baird [Tue, 17 Sep 2019 08:02:04 +0000 (08:02 +0000)]
[Ada] Don't accept illegal (e.g., Integer'(null)) generic actuals

Sem_Util.Wrong_Type usually emits an error message, but in some cases it
does not. The code which prevents emitting an error message was going
too far in some cases, causing illegal constructs to be accepted. For
example, a qualified expression such as Integer'(null) might be passed
in as an actual parameter in an instantiation of a generic and generate
no error message.

Running this command:

  gcc -c inst.ads

On the following sources:

package Inst is
   type Ptr is new Integer;

   generic
      type TElement is private;
      NonDefini : TElement;
   package ArbMgr is
   end ArbMgr;

   package Pack is new ArbMgr (Ptr, Ptr'(null));

   procedure Dummy;
end Inst;

Should produce the following output:

  inst.ads:10:42: expected type "Ptr" defined at line 2
  inst.ads:10:42: found an access type
  compilation abandoned due to previous error

2019-09-17  Steve Baird  <baird@adacore.com>

gcc/ada/

* sem_util.adb (Wrong_Type): In deciding to suppress a message,
it is not enough for In_Instance to be True; in addition,
In_Generic_Actual (Expr) must be False.
* sem_type.adb (In_Generic_Actual): Fix bug where traversal of
parents skips every other node.

From-SVN: r275786

5 years ago[Ada] Support chained calls to traversal functions in SPARK
Claire Dross [Tue, 17 Sep 2019 08:01:58 +0000 (08:01 +0000)]
[Ada] Support chained calls to traversal functions in SPARK

This change only affects the SPARK toolset. In the part of semantic
analysis enforcing ownership rules for SPARK, it corrects a crash in
analysis of a declaration of a local borrower whose definition is a
chain of several calls to traversal functions.

2019-09-17  Claire Dross  <dross@adacore.com>

gcc/ada/

* sem_spark.adb (Get_Observed_Or_Borrowed_Expr): If the
definition of a local borrower contains calls to traversal
functions, the borrowed expression is the first parameter of the
first traversal function call in the definition.

From-SVN: r275785

5 years ago[Ada] Remove section on pragma No_Run_Time
Ed Falis [Tue, 17 Sep 2019 08:01:53 +0000 (08:01 +0000)]
[Ada] Remove section on pragma No_Run_Time

This pragma has been long obsolescent and confuses users.

2019-09-17  Ed Falis  <falis@adacore.com>

gcc/ada/

* doc/gnat_rm/implementation_defined_pragmas.rst: Remove
section.
* gnat_rm.texi, gnat_ugn.texi: Regenerate.

From-SVN: r275784

5 years ago[Ada] Close file descriptors allocated for tty only once
Vadim Godunko [Tue, 17 Sep 2019 08:01:48 +0000 (08:01 +0000)]
[Ada] Close file descriptors allocated for tty only once

2019-09-17  Vadim Godunko  <godunko@adacore.com>

gcc/ada/

* libgnat/g-exptty.ads (Close_Input): New subprogram.
* libgnat/g-exptty.adb (Close_Input): New subprogram.
(Close): Move close of TTY to Close_Input.
* terminals.c (__gnat_close_tty): Set file descriptors to
invalid value after close.

From-SVN: r275783

5 years ago[Ada] GNAT.Expect (Expect_Internal): Try to call 'poll' few times
Vadim Godunko [Tue, 17 Sep 2019 08:01:42 +0000 (08:01 +0000)]
[Ada] GNAT.Expect (Expect_Internal): Try to call 'poll' few times

'poll' returns -1 in case of any error (including interruption by a
signal), so call need to be repeated few times to avoid false failures.

2019-09-17  Vadim Godunko  <godunko@adacore.com>

gcc/ada/

* libgnat/g-expect.adb (Expect_Internal): Try to call 'poll' few
times.

From-SVN: r275782

5 years ago[Ada] Avoid to close irrelevant file descriptors
Vadim Godunko [Tue, 17 Sep 2019 08:01:37 +0000 (08:01 +0000)]
[Ada] Avoid to close irrelevant file descriptors

'Close' subprogram of GNAT.Expect can close irrelevant file descriptors
when 'Expect' was terminated by Process_Died exception and any file open
operations was done before call to 'Close'.

2019-09-17  Vadim Godunko  <godunko@adacore.com>

gcc/ada/

* libgnat/g-expect.ads, libgnat/g-expect.adb (Close_Input): New
subprogram.
(Get_Command_Output): Call Close_Input to close input stream.
(Expect_Internal): Likewise.
(Close): Likewise.
* libgnat/g-exptty.adb (Close): Likewise.

gcc/testsuite/

* gnat.dg/expect3.adb: New testcase.

From-SVN: r275781

5 years ago[Ada] A new utility routine for detecting attribute 'Old
Piotr Trojanek [Tue, 17 Sep 2019 08:01:23 +0000 (08:01 +0000)]
[Ada] A new utility routine for detecting attribute 'Old

Add a utility routine for detecting attribute 'Old. It will be
immediately reused in the GNATprove backend.

2019-09-17  Piotr Trojanek  <trojanek@adacore.com>

gcc/ada/

* sem_util.ads, sem_util.adb (Is_Attribute_Old): New utility
routine.

From-SVN: r275780

5 years ago[Ada] Do not inline dispatching operations in GNATprove mode
Yannick Moy [Tue, 17 Sep 2019 08:01:10 +0000 (08:01 +0000)]
[Ada] Do not inline dispatching operations in GNATprove mode

In GNATprove, local subprograms without contracts are candidates for
inlining, so that they are only analyzed in the context of their calls.
This does not apply to dispatching operations, which may be called
through dispatching, in an unknown calling context. Hence such
operations should not be considered as candidates for inlining.

There is no test as this has no effect on compilation.

2019-09-17  Yannick Moy  <moy@adacore.com>

gcc/ada/

* inline.adb (Can_Be_Inlined_In_GNATprove_Mode): Add handling
for dispatching operations.

From-SVN: r275779

5 years ago[Ada] In a generic use Presanalyze_Spec_Expression on Predicates
Ed Schonberg [Tue, 17 Sep 2019 08:00:07 +0000 (08:00 +0000)]
[Ada] In a generic use Presanalyze_Spec_Expression on Predicates

When verifying that the meaning of an aspect has not changed between the
freeze point of the entity and the end of the declarations, we analkyze
a copy of the expression to verify its conformance to previous analysis.
If the expression contains overloaded references, these have to be
resolved, which is not done if the expression is only preanalyzed.  This
applies in particular to expressions in predicates.

2019-09-17  Ed Schonberg  <schonberg@adacore.com>

gcc/ada/

* sem_ch13.adb (Check_Aspect_At_End_Of_Declarations): In a
generic context, for a Predicate aspect, use
Preanalyze_Spec_Expression to verify conformance.

gcc/testsuite/

* gnat.dg/predicate13.adb, gnat.dg/predicate13.ads: New
testcase.

From-SVN: r275778

5 years ago[Ada] Missing tagged type decoration in corresponding record subtypes
Javier Miranda [Tue, 17 Sep 2019 07:59:58 +0000 (07:59 +0000)]
[Ada] Missing tagged type decoration in corresponding record subtypes

The frontend silently skips propagating attribute Is_Tagged_Type to the
constrained corresponding record subtype associated with a protected
type or task type with discriminants. This change does not affect the
functionality of the compiler; it leaves more clean the decoration of
internal entities.

2019-09-17  Javier Miranda  <miranda@adacore.com>

gcc/ada/

* sem_ch3.adb (Constrain_Corresponding_Record): Propagate
attribute Is_Tagged_Type.

From-SVN: r275777

5 years ago[Ada] Ada 2020: Raise expressions in limited contexts (AI12-0172)
Javier Miranda [Tue, 17 Sep 2019 07:59:53 +0000 (07:59 +0000)]
[Ada] Ada 2020: Raise expressions in limited contexts (AI12-0172)

This patch adds support for the use of raise expressions in more
limited contexts (as described in the Ada Isssue AI12-0172).

2019-09-17  Javier Miranda  <miranda@adacore.com>

gcc/ada/

* exp_ch3.adb (Build_Record_Init_Proc): Do not generate code to
adjust the tag component when the record is initialized with a
raise expression.
* sem_aggr.adb (Valid_Limited_Ancestor): Return True for
N_Raise_Expression nodes.
(Valid_Ancestor_Type): Return True for raise expressions.
* sem_ch3.adb (Analyze_Component_Declaration): Do not report an
error when a component is initialized with a raise expression.
* sem_ch4.adb (Analyze_Qualified_Expression): Do not report an
error when the aggregate has a raise expression.

gcc/testsuite/

* gnat.dg/limited4.adb: New testcase.

From-SVN: r275776

5 years ago[Ada] Ignore missing ALI files in GNATprove mode
Piotr Trojanek [Tue, 17 Sep 2019 07:59:48 +0000 (07:59 +0000)]
[Ada] Ignore missing ALI files in GNATprove mode

This change only affects GNATprove backend, where it avoids spurious
errors on missing ALI files for units indirectly withed from the current
unit and processed as part of a different .gpr project.

No test provided, because only GNATprove is affected.

2019-09-17  Piotr Trojanek  <trojanek@adacore.com>

gcc/ada/

* ali.ads: Fix casing in comment.
* ali-util.ads, ali-util.adb (Read_Withed_ALIs): Remove
Ignore_Errors parameter; it was only set to non-default value of
True when running in GNATprove_Mode and wrongly reset to False
when calling this routine recursively. Now in GNATprove mode we
want it to be always True, so in fact it is equivalent to
GNATProve_Mode flag itself (which was already used in this
routine).

From-SVN: r275775

5 years ago[Ada] PR ada/91268 Do not redefine macros
Arnaud Charlet [Tue, 17 Sep 2019 07:59:43 +0000 (07:59 +0000)]
[Ada] PR ada/91268 Do not redefine macros

This should fix PR ada/91268 by only defining macros if not already
done.

2019-09-17  Arnaud Charlet  <charlet@adacore.com>

gcc/ada/

* adaint.c (_REENTRANT, _THREAD_SAFE): Only define if needed.

From-SVN: r275774

5 years ago[Ada] Refine change for bit-packed slices
Arnaud Charlet [Tue, 17 Sep 2019 07:59:38 +0000 (07:59 +0000)]
[Ada] Refine change for bit-packed slices

We use Long_Long_Integer'Size / 2 instead of 4 * 8 to support
specifying a target configuration file where the largest integer is
32 bits instead of 64.

2019-09-17  Arnaud Charlet  <charlet@adacore.com>

gcc/ada/

* libgnat/s-bitfie.ads (Val_Bits, Val_Bytes): Define from
Long_Long_Integer'Size.

From-SVN: r275773

5 years ago[Ada] Adding assertions on extra formals for BIP function calls
Javier Miranda [Tue, 17 Sep 2019 07:59:33 +0000 (07:59 +0000)]
[Ada] Adding assertions on extra formals for BIP function calls

This patch adds assertions to ensure that the frontend passes to the
backend the right number of extra parameters required for build in place
function calls. No functional change.

2019-09-17  Javier Miranda  <miranda@adacore.com>

gcc/ada/

* exp_ch6.ads (Needs_BIP_Task_Actuals): New subprogram.
* exp_ch6.adb (Add_Task_Actuals_To_Build_In_Place_Call): Code
cleanup.
(Check_Number_Of_Actuals): New subprogram.
(Make_Build_In_Place_Call_In_Allocator): Adding assertion.
(Make_Build_In_Place_Call_In_Anonymous_Context): Adding
assertion.
(Make_Build_In_Place_Call_In_Assignment): Adding assertion.
(Make_Build_In_Place_Call_In_Object_Declaration): Code cleanup
plus assertion addition.
(Needs_BIP_Task_Actuals): New subprogram.
* sem_ch6.adb (Create_Extra_Formals): Rely on
Needs_BIP_Task_Actuals() to check if the master of the tasks to
be created, and the caller's activation chain formals are
needed.

From-SVN: r275772

5 years ago[Ada] Avoid touching potentially nonexistent memory
Bob Duff [Tue, 17 Sep 2019 07:59:29 +0000 (07:59 +0000)]
[Ada] Avoid touching potentially nonexistent memory

...in cases where the Val_2 might cross a page boundary, and the second
page is now known to exist.

Copy_Bitfield is still disabled in the compiler: no test possible.

2019-09-17  Bob Duff  <duff@adacore.com>

gcc/ada/

* libgnat/s-bituti.adb (Get_Val_2, Set_Val_2): Use new routines
for getting and setting a Val_2, avoiding touching the second
half when that half might not exist.
* exp_ch5.adb (Expand_Assign_Array_Loop_Or_Bitfield): Correct
tests for potential volatile or independent components. In
particular, do not call Prefix unless we know it's a slice.

From-SVN: r275771

5 years ago[Ada] Support for local unix sockets in GNAT.Sockets API
Dmitriy Anisimkov [Tue, 17 Sep 2019 07:59:23 +0000 (07:59 +0000)]
[Ada] Support for local unix sockets in GNAT.Sockets API

Sock_Addr_Type has Family_Unix variant now. This variant can be created
with function Unix_Local_Addr call. And this variant is working in
GNAT.Socket routines where it is appropriate.

2019-09-17  Dmitriy Anisimkov  <anisimko@adacore.com>

gcc/ada/

* gsocket.h: Include sys/un.h.
* s-oscons-tmplt.c (AF_UNIX): New constant generation.
(SIZEOF_sockaddr_un): Idem.
* libgnat/g-socket.ads (Family_Type): New value Family_Unix
added.
(Family_Inet_4_6): New subtype only for network families.
(Sock_Addr_Type): Add Unbounded_String field for Family_Unix
variant.
(Unix_Socket_Address): Create Sock_Addr_Type from socket
pathname.
(Network_Socket_Address): Create Sock_Addr_Type from
Inet_Addr_Type and Port_Type parameters.
* libgnat/g-socket.adb: Support local unix address in socket
routines.
(Get_Address_Info): Disable warning about Result may be
referenced before it has a value. Remove duplicated code to exit
from Look_For_Supported.
* libgnat/g-sothco.ads (Unix_Name_Length): New constant defining
maximum number of characters in local socket address path.
(Sockaddr): Add variant for Family_Unix address family. Move
Sin_Port and Sin_Family to Family_Inet section. Add Sin6_Port
and Sin6_Family to Family_Inet6 section.
(Set_Address): Add out parameter Length to return valuable
Sockaddr data length.
(Get_Address): Add input parameter Length to set valuable
Sockaddr data length.
* libgnat/g-sothco.adb: Support local unix address in socket
routines.

From-SVN: r275770

5 years ago[Ada] Fix wrong value of 'Size for slices of bit-packed arrays
Eric Botcazou [Tue, 17 Sep 2019 07:59:16 +0000 (07:59 +0000)]
[Ada] Fix wrong value of 'Size for slices of bit-packed arrays

This fixes a long-standing issue in the compiler which would return
a wrong value for the Size attribute applied to slices of bit-packed
arrays whose size is not a multiple of the storage unit.

The problem is that the computation was done in the code generator
after the bit-packed array had been internally rewritten into an
array of bytes, so the Size was always rounded up to the next byte.

The computation is now rewritten into the product of the Length and
Compnent_Size attribute of the slices before being sent to the code
generator.

2019-09-17  Eric Botcazou  <ebotcazou@adacore.com>

gcc/ada/

* exp_attr.adb (Expand_Size_Attribute): Chain the special cases
on the back-end path and rewrite the attribute appled to slices
of bit-packed arrays into the product of the Length and the
Compoent_Size attributes of the slices.
* exp_ch5.adb (Expand_Assign_Array_Bitfield): Use Size attribute
directly to compute the bitfield's size.

gcc/testsuite/

* gnat.dg/pack25.adb: New testcase.

From-SVN: r275769

5 years ago[Ada] Refine conditions for calling Copy_Bitfield
Bob Duff [Tue, 17 Sep 2019 07:59:11 +0000 (07:59 +0000)]
[Ada] Refine conditions for calling Copy_Bitfield

Avoid calling Copy_Bitfield if there are volatile or independent
components that might be read or written. The test is conservative.

2019-09-17  Bob Duff  <duff@adacore.com>

gcc/ada/

* exp_ch5.adb (Expand_Assign_Array_Loop_Or_Bitfield): Add tests
for potential volatile or independent components.
* libgnat/s-bituti.adb (Copy_Small_Bitfield,
Copy_Large_Bitfield): Move declarations to more appropriate
place.

From-SVN: r275768

5 years agoDaily bump.
GCC Administrator [Tue, 17 Sep 2019 00:16:39 +0000 (00:16 +0000)]
Daily bump.

From-SVN: r275763

5 years agodecl.c (grokdeclarator): Use declspecs->locations and declarator->id_loc in a few...
Paolo Carlini [Mon, 16 Sep 2019 23:04:10 +0000 (23:04 +0000)]
decl.c (grokdeclarator): Use declspecs->locations and declarator->id_loc in a few error messages.

/cp
2019-09-16  Paolo Carlini  <paolo.carlini@oracle.com>

* decl.c (grokdeclarator): Use declspecs->locations and
declarator->id_loc in a few error messages.
* pt.c (finish_member_template_decl): Use DECL_SOURCE_LOCATION.
(push_template_decl_real): Likewise.

/testsuite
2019-09-16  Paolo Carlini  <paolo.carlini@oracle.com>

* g++.dg/ext/int128-6.C: New.
* c-c++-common/pr68107.c: Test location(s).
* g++.dg/other/large-size-array.C: Likewise.
* g++.dg/template/dtor2.C: Likewise.
* g++.dg/template/error9.C: Likewise.
* g++.dg/tls/diag-2.C: Likewise.
* g++.dg/tls/diag-4.C: Likewise.
* g++.dg/tls/diag-5.C: Likewise.
* g++.old-deja/g++.pt/memtemp71.C: Likewise.

From-SVN: r275759

5 years agocompiler: fix quoting of //go:linkname in error message
Ian Lance Taylor [Mon, 16 Sep 2019 20:41:40 +0000 (20:41 +0000)]
compiler: fix quoting of //go:linkname in error message

    Reviewed-on: https://go-review.googlesource.com/c/gofrontend/+/195718

From-SVN: r275758

5 years agopr89386.c (foo): Fix return type.
Uros Bizjak [Mon, 16 Sep 2019 18:50:35 +0000 (20:50 +0200)]
pr89386.c (foo): Fix return type.

* gcc.target/i386/pr89386.c (foo): Fix return type.
* gcc.target/i386/pr89386-1.c (foo): Ditto.

From-SVN: r275757

5 years ago* config/i386/sync.md (atomic_store<mode>): Improve comment.
Uros Bizjak [Mon, 16 Sep 2019 18:44:55 +0000 (20:44 +0200)]
* config/i386/sync.md (atomic_store<mode>): Improve comment.

From-SVN: r275755

5 years agore PR target/91719 (gcc compiles seq_cst store on x86-64 differently from clang/icc)
Uros Bizjak [Mon, 16 Sep 2019 18:37:28 +0000 (20:37 +0200)]
re PR target/91719 (gcc compiles seq_cst store on x86-64 differently from clang/icc)

PR target/91719
* config/i386/i386.h (TARGET_USE_XCHG_FOR_ATOMIC_STORE): New macro.
* config/i386/x86-tune.def (X86_TUNE_USE_XCHG_FOR_ATOMIC_STORE): New.
* config/i386/sync.md (atomic_store<mode>): emit XCHG for
TARGET_USE_XCHG_FOR_ATOMIC_STORE.

From-SVN: r275754

5 years ago* Makefile.in (build/genmatch.o): Depend on $(CPPLIB_H).
Jason Merrill [Mon, 16 Sep 2019 16:19:18 +0000 (12:19 -0400)]
* Makefile.in (build/genmatch.o): Depend on $(CPPLIB_H).

From-SVN: r275753

5 years agoRewrite second part of or_comparisons_1 into match.pd.
Martin Liska [Mon, 16 Sep 2019 14:23:04 +0000 (16:23 +0200)]
Rewrite second part of or_comparisons_1 into match.pd.

2019-09-16  Martin Liska  <mliska@suse.cz>

* gimple-fold.c (or_comparisons_1): Remove rules moved
to ...
* match.pd: ... here.

From-SVN: r275752

5 years agoRewrite first part of or_comparisons_1 into match.pd.
Martin Liska [Mon, 16 Sep 2019 14:22:50 +0000 (16:22 +0200)]
Rewrite first part of or_comparisons_1 into match.pd.

2019-09-16  Martin Liska  <mliska@suse.cz>

* gimple-fold.c (or_comparisons_1): Remove rules
moved to ...
* match.pd: ... here.

From-SVN: r275751

5 years agoRewrite part of and_comparisons_1 into match.pd.
Martin Liska [Mon, 16 Sep 2019 14:22:36 +0000 (16:22 +0200)]
Rewrite part of and_comparisons_1 into match.pd.

2019-09-16  Martin Liska  <mliska@suse.cz>

* genmatch.c (dt_node::append_simplify): Do not print
warning when we have duplicate patterns belonging
to a same simplify rule.
* gimple-fold.c (and_comparisons_1): Remove matching moved to match.pd.
(maybe_fold_comparisons_from_match_pd): Handle
tcc_comparison as a results.
* match.pd: Handle (X == CST1) && (X OP2 CST2) conditions.

From-SVN: r275750

5 years agoFix PR88784, middle end is missing some optimizations about unsigned
Li Jia He [Mon, 16 Sep 2019 14:22:16 +0000 (14:22 +0000)]
Fix PR88784, middle end is missing some optimizations about unsigned

2019-09-16  Li Jia He  <helijia@linux.ibm.com>
    Qi Feng  <ffengqi@linux.ibm.com>

PR middle-end/88784
* match.pd (x >  y  &&  x != XXX_MIN): Optimize into 'x > y'.
(x >  y  &&  x == XXX_MIN): Optimize into 'false'.
(x <= y  &&  x == XXX_MIN): Optimize into 'x == XXX_MIN'.
(x <  y  &&  x != XXX_MAX): Optimize into 'x < y'.
(x <  y  &&  x == XXX_MAX): Optimize into 'false'.
(x >= y  &&  x == XXX_MAX): Optimize into 'x == XXX_MAX'.
(x >  y  ||  x != XXX_MIN): Optimize into 'x != XXX_MIN'.
(x <= y  ||  x != XXX_MIN): Optimize into 'true'.
(x <= y  ||  x == XXX_MIN): Optimize into 'x <= y'.
(x <  y  ||  x != XXX_MAX): Optimize into 'x != XXX_MAX'.
(x >= y  ||  x != XXX_MAX): Optimize into 'true'.
(x >= y  ||  x == XXX_MAX): Optimize into 'x >= y'.
2019-09-16  Li Jia He  <helijia@linux.ibm.com>
    Qi Feng  <ffengqi@linux.ibm.com>

PR middle-end/88784
* gcc.dg/pr88784-1.c: New testcase.
* gcc.dg/pr88784-2.c: New testcase.
* gcc.dg/pr88784-3.c: New testcase.
* gcc.dg/pr88784-4.c: New testcase.
* gcc.dg/pr88784-5.c: New testcase.
* gcc.dg/pr88784-6.c: New testcase.
* gcc.dg/pr88784-7.c: New testcase.
* gcc.dg/pr88784-8.c: New testcase.
* gcc.dg/pr88784-9.c: New testcase.
* gcc.dg/pr88784-10.c: New testcase.
* gcc.dg/pr88784-11.c: New testcase.
* gcc.dg/pr88784-12.c: New testcase.

Co-Authored-By: Qi Feng <ffengqi@linux.ibm.com>
From-SVN: r275749

5 years agoAuto-generate maybe_fold_and/or_comparisons from match.pd
Li Jia He [Mon, 16 Sep 2019 14:21:20 +0000 (14:21 +0000)]
Auto-generate maybe_fold_and/or_comparisons from match.pd

2019-09-16  Li Jia He  <helijia@linux.ibm.com>
    Martin Liska  <mliska@suse.cz>

* gimple-fold.c (and_comparisons_1): Add type as first
argument.
(and_var_with_comparison): Likewise.
(and_var_with_comparison_1): Likewise.
(or_comparisons_1): Likewise.
(or_var_with_comparison): Likewise.
(or_var_with_comparison_1): Likewise.
(maybe_fold_and_comparisons): Call maybe_fold_comparisons_from_match_pd.
(maybe_fold_or_comparisons): Likewise.
(maybe_fold_comparisons_from_match_pd): New.
* gimple-fold.h (maybe_fold_and_comparisons): Add type argument.
(maybe_fold_or_comparisons): Likewise.
* gimple.c (gimple_size): Make it public and add num_ops argument.
(gimple_init): New function.
(gimple_alloc): Call gimple_init.
* gimple.h (gimple_size): New.
(gimple_init): Likewise.
* tree-if-conv.c (fold_or_predicates): Pass type.
* tree-ssa-ifcombine.c (ifcombine_ifandif): Likewise.
* tree-ssa-reassoc.c (eliminate_redundant_comparison): Likewise.
(optimize_vec_cond_expr): Likewise.
(ovce_extract_ops): Return type of conditional expression.
* tree-ssanames.c (init_ssa_name_imm_use): New.
(make_ssa_name_fn): Use init_ssa_name_imm_use.
* tree-ssanames.h (init_ssa_name_imm_use): New.

Co-Authored-By: Martin Liska <mliska@suse.cz>
From-SVN: r275748

5 years agore PR tree-optimization/91756 (g++.dg/lto/alias-3 FAILs)
Richard Biener [Mon, 16 Sep 2019 11:58:35 +0000 (11:58 +0000)]
re PR tree-optimization/91756 (g++.dg/lto/alias-3 FAILs)

2019-09-16  Richard Biener  <rguenther@suse.de>

PR tree-optimization/91756
PR tree-optimization/87132
* tree-ssa-alias.h (enum translate_flags): New.
(get_continuation_for_phi): Use it instead of simple bool flag.
(walk_non_aliased_vuses): Likewise.
* tree-ssa-alias.c (maybe_skip_until): Adjust.
(get_continuation_for_phi): When looking across backedges only
disallow valueization.
(walk_non_aliased_vuses): Adjust.
* tree-ssa-sccvn.c (vn_reference_lookup_3): Avoid valueization
if requested.

* gcc.dg/tree-ssa/ssa-fre-81.c: New testcase.

From-SVN: r275747

5 years agoPR c++/30277 - int-width bit-field promotion.
Jason Merrill [Mon, 16 Sep 2019 04:34:28 +0000 (00:34 -0400)]
PR c++/30277 - int-width bit-field promotion.

Here, if cp_perform_integral_promotions saw that the TREE_TYPE of a
bit-field reference was the same as the type it promotes to, it didn't do
anything.  But then decay_conversion saw that the bit-field reference was
unchanged, and converted it to its declared type.  So I needed to add
something to make it clear that promotion has been done.  But then the 33819
change caused trouble by looking through the NOP_EXPR I just added.  This
was the wrong fix for that bug; I've now fixed that better by recognizing in
cp_perform_integral_promotions that we won't promote a bit-field larger than
32 bits, so we should use the declared type.

PR c++/33819 - long bit-field promotion.
* typeck.c (cp_perform_integral_promotions): Handle large bit-fields
properly.  Handle 32-bit non-int bit-fields properly.
(is_bitfield_expr_with_lowered_type): Don't look through NOP_EXPR.

From-SVN: r275746

5 years agoPR c++/82165 - enum bitfields and operator overloading.
Jason Merrill [Mon, 16 Sep 2019 04:34:23 +0000 (00:34 -0400)]
PR c++/82165 - enum bitfields and operator overloading.

In this testcase, !f.b0 was failing to call the overloaded operator because
TREE_TYPE is the magic bitfield integer type, and we weren't using
unlowered_expr_type the way we do in other places.  It would be nice if we
could give bit-field COMPONENT_REFs their declared type until genericization
time...

* call.c (build_new_op_1): Use unlowered_expr_type.

From-SVN: r275745

5 years agoFix conversions for built-in operator overloading candidates.
Jason Merrill [Mon, 16 Sep 2019 04:34:18 +0000 (00:34 -0400)]
Fix conversions for built-in operator overloading candidates.

While working on C++20 operator<=>, I noticed that build_new_op_1 was doing
too much conversion when a built-in candidate was selected; the standard
says it should only perform user-defined conversions, and then leave the
normal operator semantics to handle any standard conversions.  This is
important for operator<=> because a comparison of two different unscoped
enums is ill-formed; if we promote the enums to int here, cp_build_binary_op
never gets to see the original operand types, so we can't give the error.

* call.c (build_new_op_1): Don't apply any standard conversions to
the operands of a built-in operator.  Don't suppress conversions in
cp_build_unary_op.
* typeck.c (cp_build_unary_op): Do integral promotions for enums.

From-SVN: r275744

5 years agoHandle location wrappers better in warn_logical_operator.
Jason Merrill [Mon, 16 Sep 2019 04:34:12 +0000 (00:34 -0400)]
Handle location wrappers better in warn_logical_operator.

When we introduced location wrappers, we added fold_for_warn to warnings
that are interested in a constant value, or wrapper-stripping to warnings
that are interested in literal constants.  This particular warning is
looking for a literal constant, but was wrongly changed to use
fold_for_warn; this patch makes it strip instead.

* c-warn.c (warn_logical_operator): Strip location wrappers.  Don't
fold_for_warn in "|| mask" warning.

From-SVN: r275743

5 years agoDaily bump.
GCC Administrator [Mon, 16 Sep 2019 00:16:28 +0000 (00:16 +0000)]
Daily bump.

From-SVN: r275741

5 years agoPR c++/91740 - ICE with constexpr call and ?: in ARRAY_REF.
Marek Polacek [Sun, 15 Sep 2019 20:22:27 +0000 (20:22 +0000)]
PR c++/91740 - ICE with constexpr call and ?: in ARRAY_REF.

* pt.c (build_non_dependent_expr): Call build_non_dependent_expr for
the first operand.

* g++.dg/cpp1y/var-templ63.C: New test.

From-SVN: r275736

5 years ago2019-09-15 Sandra Loosemore <sandra@codesourcery.com>
Sandra Loosemore [Sun, 15 Sep 2019 20:19:40 +0000 (16:19 -0400)]
2019-09-15  Sandra Loosemore  <sandra@codesourcery.com>

gcc/testsuite/
* lib/target-supports.exp
(check_effective_target_arm_neon_fp16_hw)
(check_effective_target_arm_fp16_hw): Use check_runtime
instead of check_runtime_nocache.

From-SVN: r275735

5 years agore PR fortran/91727 (ICE in conformable_arrays, at fortran/resolve.c:7490)
Steven G. Kargl [Sun, 15 Sep 2019 17:49:44 +0000 (17:49 +0000)]
re PR fortran/91727 (ICE in conformable_arrays, at fortran/resolve.c:7490)

2019-09-15  Steven G. Kargl  <kargl@gcc.gnu.org>

PR fortran/91727
* resolve.c (conformable_arrays):  If array-spec is NULL, then
allocate-object is a scalar.  a conformability check only occurs
for an array source-expr.

2019-09-15  Steven G. Kargl  <kargl@gcc.gnu.org>

PR fortran/91727
* gfortran.dg/pr91727.f90: New test.

From-SVN: r275731

5 years agoChange C++ to C comments.
Jason Merrill [Sun, 15 Sep 2019 17:29:24 +0000 (13:29 -0400)]
Change C++ to C comments.

From-SVN: r275730

5 years agore PR fortran/91550 (ICE in do_subscript, at fortran/frontend-passes.c:2652)
Thomas Koenig [Sun, 15 Sep 2019 14:57:48 +0000 (14:57 +0000)]
re PR fortran/91550 (ICE in do_subscript, at fortran/frontend-passes.c:2652)

2019-09-15  Thomas Koenig  <tkoenig@gcc.gnu.org>

PR fortran/91550
* frontend-passes.c (do_subscript): If step equals
zero, a previuos error has been reported; do nothing
in this case.
* resolve.c (gfc_resolve_iterator): Move error checking
after type conversion.

2019-09-15  Thomas Koenig  <tkoenig@gcc.gnu.org>

PR fortran/91550
* gfortran.dg/do_subscript_6.f90: New test.

From-SVN: r275729

5 years ago[C++ PATCH] simplify clone predicate
Nathan Sidwell [Sun, 15 Sep 2019 12:24:14 +0000 (12:24 +0000)]
[C++ PATCH] simplify clone predicate

https://gcc.gnu.org/ml/gcc-patches/2019-09/msg00904.html
* cp-tree.h (DECL_CLONED_FUNCTION_P): Reimplement using
IDENTIFIER_CDTOR_P, correct documentation.
(DECL_CLONED_FUNCTION): Directly access field.
(decl_cloned_function_p): Delete.
* class.c (decl_cloned_function_p): Delete.
* pt.c (instantiate_template_1): Check DECL_CHAIN is a decl.

From-SVN: r275727

5 years agore PR fortran/91556 (Problems with better interface checking)
Thomas Koenig [Sun, 15 Sep 2019 08:43:42 +0000 (08:43 +0000)]
re PR fortran/91556 (Problems with better interface checking)

2019-09-15  Thomas Koenig  <tkoenig@gcc.gnu.org>

PR fortran/91556
* gfortran.dg/warn_argument_mismatch_1.f90: Remove.

From-SVN: r275726

5 years agoDaily bump.
GCC Administrator [Sun, 15 Sep 2019 00:16:23 +0000 (00:16 +0000)]
Daily bump.

From-SVN: r275723

5 years agore PR fortran/91557 (Bogus warning about unused dummy argument _formal_*)
Thomas Koenig [Sat, 14 Sep 2019 20:40:55 +0000 (20:40 +0000)]
re PR fortran/91557 (Bogus warning about unused dummy argument _formal_*)

2019-09-14  Thomas Koenig  <tkoenig@gcc.gnu.org>

PR fortran/91557
PR fortran/91556
* frontend-passes.c (check_externals_procedure): Reformat argument
list. Use gfc_compare_actual_formal instead of gfc_procedure_use.
* gfortran.h (gfc_symbol): Add flag error.
* interface.c (gfc_compare_interfaces): Reformat.
(argument_rank_mismatch): Add where_formal argument. If it is
present, note that the error is between different calls.
(compare_parameter): Change warnings that previously dependended
on -Wargument-mismatch to unconditional.  Issue an error / warning
on type mismatch only once.  Pass where_formal to
argument_rank_mismatch for artificial variables.
(compare_actual_formal): Change warnings that previously
dependeded on -Wargument-mismatch to unconditional.
(gfc_check_typebound_override): Likewise.
(gfc_get_formal_from_actual_arglist): Set declared_at for
artificial symbol.
* invoke.texi: Extend description of -fallow-argument-mismatch.
Delete -Wargument-mismatch.
* lang.opt: Change -Wargument-mismatch to do-nothing option.
* resolve.c (resolve_structure_cons): Change warnings that
previously depended on -Wargument-mismatch to unconditional.
* trans-decl.c (generate_local_decl): Do not warn if the symbol is
artificial.

2019-09-14  Thomas Koenig  <tkoenig@gcc.gnu.org>

PR fortran/91557
PR fortran/91556
* gfortran.dg/argument_checking_20.f90: New test.
* gfortran.dg/argument_checking_21.f90: New test.
* gfortran.dg/argument_checking_22.f90: New test.
* gfortran.dg/argument_checking_23.f90: New test.
* gfortran.dg/warn_unused_dummy_argument_5.f90: New test.
* gfortran.dg/bessel_3.f90: Add pattern for type mismatch.
* gfortran.dg/g77/20010519-1.f: Adjust dg-warning messages to new
handling.
* gfortran.dg/pr24823.f: Likewise.
* gfortran.dg/pr39937.f: Likewise.

From-SVN: r275719

5 years agore PR middle-end/83889 (new failures on some arm targets after r256644)
Sandra Loosemore [Sat, 14 Sep 2019 19:00:15 +0000 (15:00 -0400)]
re PR middle-end/83889 (new failures on some arm targets after r256644)

2019-09-14  Sandra Loosemore  <sandra@codesourcery.com>

PR testsuite/83889

gcc/testsuite/
* g++.dg/vect/pr87914.cc: Remove explicit dg-do run.

From-SVN: r275718

5 years agoFormatting and comment syntax adjustments.
Jason Merrill [Sat, 14 Sep 2019 18:45:46 +0000 (14:45 -0400)]
Formatting and comment syntax adjustments.

From-SVN: r275717

5 years agoConsider doloop IV in IVOPTs
Kewen Lin [Sat, 14 Sep 2019 09:01:21 +0000 (09:01 +0000)]
Consider doloop IV in IVOPTs

   For the targets supporting low-overhead loops, IVOPTs has to take care of
   the loops which will probably be transformed in RTL doloop optimization,
   to try to make selected IV candidate set optimal.  The process of doloop
   support includes:

   1) Analyze the current loop will be transformed to doloop or not, find and
      mark its compare type IV use as doloop use (iv_group field doloop_p), and
      set flag doloop_use_p of ivopts_data to notify subsequent processings on
      doloop.  See analyze_and_mark_doloop_use and its callees for the details.
      The target hook predict_doloop_p can be used for target specific checks.

   2) Add one doloop dedicated IV cand {(may_be_zero ? 1 : (niter + 1)), +, -1},
      set flag doloop_p of iv_cand, step cost is set as zero and no extra cost
      like biv.  For cost determination between doloop IV cand and IV use, the
      target hooks doloop_cost_for_generic and doloop_cost_for_address are
      provided to add on extra costs for generic type and address type IV use.
      Zero cost is assigned to the pair between doloop IV cand and doloop IV
      use, and bound zero is set for IV elimination.

   3) With the cost setting in step 2), the current cost model based IV
      selection algorithm will process as usual, pick up doloop dedicated IV if
      profitable.

gcc/ChangeLog

2019-09-14  Kewen Lin  <linkw@gcc.gnu.org>

    PR middle-end/80791
    * config/rs6000/rs6000.c (TARGET_HAVE_COUNT_REG_DECR_P): New macro.
    (TARGET_DOLOOP_COST_FOR_GENERIC): Likewise.
    (TARGET_DOLOOP_COST_FOR_ADDRESS): Likewise.
    * target.def (have_count_reg_decr_p): New hook.
    (doloop_cost_for_generic): Likewise.
    (doloop_cost_for_address): Likewise.
    * doc/tm.texi.in (TARGET_HAVE_COUNT_REG_DECR_P): Likewise.
    (TARGET_DOLOOP_COST_FOR_GENERIC): Likewise.
    (TARGET_DOLOOP_COST_FOR_ADDRESS): Likewise.
    * doc/tm.texi: Regenerate.
    * tree-ssa-loop-ivopts.c (comp_cost::operator+=): Consider infinite cost
    addend.
    (record_group): Init doloop_p.
    (add_candidate_1): Add optional argument doloop, change the handlings
    accordingly.
    (add_candidate): Likewise.
    (generic_predict_doloop_p): Update attribute.
    (force_expr_to_var_cost): Add costing for expressions COND_EXPR/LT_EXPR/
    LE_EXPR/GT_EXPR/GE_EXPR/EQ_EXPR/NE_EXPR/UNORDERED_EXPR/ORDERED_EXPR/
    UNLT_EXPR/UNLE_EXPR/UNGT_EXPR/UNGE_EXPR/UNEQ_EXPR/LTGT_EXPR/MAX_EXPR/
    MIN_EXPR.
    (get_computation_cost): Update for doloop IV cand extra cost.
    (determine_group_iv_cost_cond): Update for doloop IV cand.
    (determine_iv_cost): Likewise.
    (ivopts_estimate_reg_pressure): Likewise.
    (may_eliminate_iv): Update handlings for doloop IV cand.
    (add_iv_candidate_for_doloop): New function.
    (find_iv_candidates): Call function add_iv_candidate_for_doloop.
    (iv_ca_set_no_cp): Update for doloop IV cand.
    (iv_ca_set_cp): Likewise.
    (iv_ca_dump): Dump register cost.
    (find_doloop_use): New function.
    (analyze_and_mark_doloop_use): Likewise.
    (tree_ssa_iv_optimize_loop): Call function analyze_and_mark_doloop_use.

gcc/testsuite/ChangeLog

2019-09-14  Kewen Lin  <linkw@gcc.gnu.org>

    PR middle-end/80791
    * gcc.dg/tree-ssa/ivopts-3.c: Adjust for doloop change.
    * gcc.dg/tree-ssa/ivopts-lt.c: Likewise.
    * gcc.dg/tree-ssa/pr32044.c: Likewise.

From-SVN: r275713

5 years agoDaily bump.
GCC Administrator [Sat, 14 Sep 2019 00:16:25 +0000 (00:16 +0000)]
Daily bump.

From-SVN: r275709

5 years agore PR fortran/91566 (ICE in gfc_constructor_copy, at fortran/constructor.c:103)
Steven G. Kargl [Fri, 13 Sep 2019 20:19:40 +0000 (20:19 +0000)]
re PR fortran/91566 (ICE in gfc_constructor_copy, at fortran/constructor.c:103)

2019-09-13  Steven G. Kargl  <kargl@gcc.gnu.org>

PR fortran/91566
* simplify.c (gfc_simplify_merge): Need to simplify expression
after insertation of parenthesis.

2019-09-13  Steven G. Kargl  <kargl@gcc.gnu.org>

PR fortran/91566
* gfortran.dg/pr91566.f90:

From-SVN: r275704

5 years agolibgomp plugin - init string
Tobias Burnus [Fri, 13 Sep 2019 18:14:02 +0000 (18:14 +0000)]
libgomp plugin - init string

libgomp/
2019-09-13  Tobias Burnus  <tobias@codesourcery.com>

        * plugin/plugin-hsa.c (hsa_warn, hsa_fatal, hsa_error): Ensure
        string is initialized.

From-SVN: r275703

5 years agognatmake: Accept the `--sysroot=' GCC driver option
Maciej W. Rozycki [Fri, 13 Sep 2019 17:43:12 +0000 (17:43 +0000)]
gnatmake: Accept the `--sysroot=' GCC driver option

According to `gnatmake' documentation:

"Any uppercase or multi-character switch that is not a 'gnatmake' switch
is passed to 'gcc' (e.g., '-O', '-gnato,' etc.)"

however the `--sysroot=' switch is actually rejected:

gnatmake: invalid switch: --sysroot=...

likely because it is one of the very few GCC driver options that have a
leading double dash and therefore we don't have a blanket fall-through
for such switches that would satisfy what our documentation claims.

The option is actually shared between the compiler and the linker, so
pass the switch to both build stages if requested, removing GNAT
testsuite issues like:

gnatmake: invalid switch: --sysroot=.../sysroot
compiler exited with status 1
Executing on host: .../gcc/gnatclean -c -q -n ./abstract_with_anonymous_result   (timeout = 300)
spawn -ignore SIGHUP .../gcc/gnatclean -c -q -n ./abstract_with_anonymous_result
PASS: gnat.dg/abstract_with_anonymous_result.adb (test for excess errors)
UNRESOLVED: gnat.dg/abstract_with_anonymous_result.adb compilation failed to produce executable

in a test environment where `--with-build-sysroot=.../sysroot' has been
used to build a cross-compiler.  Passing to the compilation stage only
would lead to errors like:

.../bin/riscv64-linux-gnu-ld: cannot find crt1.o: No such file or directory
.../bin/riscv64-linux-gnu-ld: cannot find -lc
collect2: error: ld returned 1 exit status
gnatlink: error when calling .../gcc/xgcc
gnatmake: *** link failed.
compiler exited with status 1
Executing on host: .../gcc/gnatclean -c -q -n ./abstract_with_anonymous_result   (timeout = 300)
spawn -ignore SIGHUP .../gcc/gnatclean -c -q -n ./abstract_with_anonymous_result
./abstract_with_anonymous_result.ali
./abstract_with_anonymous_result.o
FAIL: gnat.dg/abstract_with_anonymous_result.adb (test for excess errors)
Excess errors:
.../bin/riscv64-linux-gnu-ld: cannot find crt1.o: No such file or directory
.../bin/riscv64-linux-gnu-ld: cannot find -lc
gnatlink: error when calling .../gcc/xgcc

UNRESOLVED: gnat.dg/abstract_with_anonymous_result.adb compilation failed to produce executable

instead.

gcc/ada/
* make.adb (Scan_Make_Arg): Also accept `--sysroot=' for the
compiler and the linker.

From-SVN: r275702

5 years agore PR middle-end/91708 ([ARM] Bootstrap fails in gen_movsi, at config/arm/arm.md...
Bernd Edlinger [Fri, 13 Sep 2019 17:22:04 +0000 (17:22 +0000)]
re PR middle-end/91708 ([ARM] Bootstrap fails in gen_movsi, at config/arm/arm.md:5258)

2019-09-13  Bernd Edlinger  <bernd.edlinger@hotmail.de>

        PR middle-end/91708
        * cse.c (cse_insn): Do not replace anything with a
        MEM.

From-SVN: r275701

5 years agolibgo: don't use \? in grep pattern
Ian Lance Taylor [Fri, 13 Sep 2019 17:07:20 +0000 (17:07 +0000)]
libgo: don't use \? in grep pattern

    It's not supported by Solaris grep.  Just use * instead; it matches
    more but it shouldn't matter.

    Fixes https://gcc.gnu.org/PR91764

    Reviewed-on: https://go-review.googlesource.com/c/gofrontend/+/195238

From-SVN: r275700

5 years ago* doc/invoke.texi (Optimize Options): Fix typo.
Ian Lance Taylor [Fri, 13 Sep 2019 13:45:35 +0000 (13:45 +0000)]
* doc/invoke.texi (Optimize Options): Fix typo.

From-SVN: r275699

5 years agore PR fortran/91716 (ICE in output_constant, at varasm.c:5026)
Bernd Edlinger [Fri, 13 Sep 2019 11:33:18 +0000 (11:33 +0000)]
re PR fortran/91716 (ICE in output_constant, at varasm.c:5026)

2019-09-13  Bernd Edlinger  <bernd.edlinger@hotmail.de>

        PR fortran/91716
        * trans-array.c (gfc_conv_array_initializer): Always assign the
        array type of the field to the string constant.

testsuite:
2019-09-13  Bernd Edlinger  <bernd.edlinger@hotmail.de>

        PR fortran/91716
        * gfortran.dg/pr91716.f90: New test.

From-SVN: r275698

5 years ago[PATCH][GCC] Update my email address
Sam Tebbs [Fri, 13 Sep 2019 10:41:37 +0000 (10:41 +0000)]
[PATCH][GCC] Update my email address

gcc/ChangeLog
2019-09-13  Sam Tebbs  <sam.tebbs@arm.com>

* MAINTAINERS (Sam Tebbs): Update email address.

From-SVN: r275697

5 years agore PR fortran/91717 (ICE on concatenating deferred-length character and character...
Paul Thomas [Fri, 13 Sep 2019 05:41:01 +0000 (05:41 +0000)]
re PR fortran/91717 (ICE on concatenating deferred-length character and character literal)

2019-09-13  Paul Thomas  <pault@gcc.gnu.org>

PR fortran/91717
* dependency.c (gfc_dep_resolver): Flag identical components
and exit with return value 1 if set and no array refs.

2019-09-13  Paul Thomas  <pault@gcc.gnu.org>

PR fortran/91717
* gfortran.dg/dependency_55.f90 : New test.

From-SVN: r275696

5 years agoDaily bump.
GCC Administrator [Fri, 13 Sep 2019 00:16:19 +0000 (00:16 +0000)]
Daily bump.

From-SVN: r275695

5 years agolibgo: update to Go1.13
Ian Lance Taylor [Thu, 12 Sep 2019 23:22:53 +0000 (23:22 +0000)]
libgo: update to Go1.13

    Reviewed-on: https://go-review.googlesource.com/c/gofrontend/+/194698

From-SVN: r275691

5 years agore PR tree-optimization/89386 (Generation of vectorized MULHRS (Multiply High with...
Uros Bizjak [Thu, 12 Sep 2019 19:18:25 +0000 (21:18 +0200)]
re PR tree-optimization/89386 (Generation of vectorized MULHRS (Multiply High with Round and Scale) instruction)

PR tree-optimization/89386
* config/i386/sse.md (smulhrs<mode>3): New expander.
(smulhrsv4hi3): Ditto.

testsuite/ChangeLog:

PR tree-optimization/89386
* gcc.target/i386/pr89386.c: New test.
* gcc.target/i386/pr89386-1.c: Ditto.

From-SVN: r275689

5 years agore PR tree-optimization/91750 (Induction vectorization introduces signed overflows)
Richard Biener [Thu, 12 Sep 2019 12:48:43 +0000 (12:48 +0000)]
re PR tree-optimization/91750 (Induction vectorization introduces signed overflows)

2019-09-12  Richard Biener  <rguenther@suse.de>

PR tree-optimization/91750
* tree-vect-loop.c (vectorizable_induction): Compute IV increments
in the type of the evolution.

* gcc.dg/vect/pr91750.c: New testcase.

From-SVN: r275685

5 years agoPR libstdc++/91748 fix std::for_each_n for random access iterators
Jonathan Wakely [Thu, 12 Sep 2019 10:51:39 +0000 (11:51 +0100)]
PR libstdc++/91748 fix std::for_each_n for random access iterators

PR libstdc++/91748
* include/bits/stl_algo.h (for_each_n): Fix random access iterator
case.
* testsuite/25_algorithms/for_each/for_each_n.cc: Test with random
access iterators.

From-SVN: r275683

5 years agoVectorise multiply high with scaling operations (PR 89386)
Yuliang Wang [Thu, 12 Sep 2019 09:59:58 +0000 (09:59 +0000)]
Vectorise multiply high with scaling operations (PR 89386)

2019-09-12  Yuliang Wang  <yuliang.wang@arm.com>

gcc/
PR tree-optimization/89386
* config/aarch64/aarch64-sve2.md (<su>mull<bt><Vwide>)
(<r>shrnb<mode>, <r>shrnt<mode>): New SVE2 patterns.
(<su>mulh<r>s<mode>3): New pattern for MULHRS.
* config/aarch64/iterators.md (UNSPEC_SMULLB, UNSPEC_SMULLT)
(UNSPEC_UMULLB, UNSPEC_UMULLT, UNSPEC_SHRNB, UNSPEC_SHRNT)
(UNSPEC_RSHRNB, UNSPEC_RSHRNT, UNSPEC_SMULHS, UNSPEC_SMULHRS)
UNSPEC_UMULHS, UNSPEC_UMULHRS): New unspecs.
(MULLBT, SHRNB, SHRNT, MULHRS): New int iterators.
(su, r): Handle the unspecs above.
(bt): New int attribute.
* internal-fn.def (IFN_MULHS, IFN_MULHRS): New internal functions.
* internal-fn.c (first_commutative_argument): Commutativity info for
above.
* optabs.def (smulhs_optab, smulhrs_optab, umulhs_optab)
(umulhrs_optab): New optabs.
* doc/md.texi (smulhs$var{m3}, umulhs$var{m3})
(smulhrs$var{m3}, umulhrs$var{m3}): Documentation for the above.
* tree-vect-patterns.c (vect_recog_mulhs_pattern): New pattern
function.
(vect_vect_recog_func_ptrs): Add it.
* testsuite/gcc.target/aarch64/sve2/mulhrs_1.c: New test.
* testsuite/gcc.dg/vect/vect-mulhrs-1.c: As above.
* testsuite/gcc.dg/vect/vect-mulhrs-2.c: As above.
* testsuite/gcc.dg/vect/vect-mulhrs-3.c: As above.
* testsuite/gcc.dg/vect/vect-mulhrs-4.c: As above.
* doc/sourcebuild.texi (vect_mulhrs_hi): Document new target selector.
* testsuite/lib/target-supports.exp
(check_effective_target_vect_mulhrs_hi): Return true for AArch64
with SVE2.

From-SVN: r275682

5 years agoDaily bump.
GCC Administrator [Thu, 12 Sep 2019 00:16:18 +0000 (00:16 +0000)]
Daily bump.

From-SVN: r275680

5 years agore PR middle-end/83889 (new failures on some arm targets after r256644)
Sandra Loosemore [Wed, 11 Sep 2019 20:53:46 +0000 (16:53 -0400)]
re PR middle-end/83889 (new failures on some arm targets after r256644)

2019-09-11  Sandra Loosemore  <sandra@codesourcery.com>

PR testsuite/83889

gcc/testsuite/
* gcc.dg/vect/pr81740-2.c: Remove explicit dg-do run.
* gcc.dg/vect/pr88598-1.c: Likewise.
* gcc.dg/vect/pr88598-2.c: Likewise.
* gcc.dg/vect/pr88598-3.c: Likewise.
* gcc.dg/vect/pr88598-4.c: Likewise.
* gcc.dg/vect/pr88598-5.c: Likewise.
* gcc.dg/vect/pr88598-6.c: Likewise.
* gcc.dg/vect/pr89440.c: Likewise.
* gcc.dg/vect/pr90018.c: Likewise.
* gcc.dg/vect/pr91293-1.c: Likewise.
* gcc.dg/vect/pr91293-2.c: Likewise.
* gcc.dg/vect/pr91293-3.c: Likewise.

From-SVN: r275667

5 years agore PR fortran/91553 (ICE in gfc_real2complex, at fortran/arith.c:2208)
Steven G. Kargl [Wed, 11 Sep 2019 18:37:31 +0000 (18:37 +0000)]
re PR fortran/91553 (ICE in gfc_real2complex, at fortran/arith.c:2208)

2019-09-11  Steven G. Kargl  <kargl@gcc.gnu.org>

PR fortran/91553
* simplify.c (gfc_convert_constant):  During conversion check if the
constant is enclosed in parenthesis, and simplify expression.

2019-09-11  Steven G. Kargl  <kargl@gcc.gnu.org>

PR fortran/91553
* gfortran.dg/pr91553.f90: New test.

From-SVN: r275657

5 years agore PR fortran/91642 (ICE: Bad IO basetype (transfer_expr, at fortran/trans-io.c:2507))
Steven G. Kargl [Wed, 11 Sep 2019 18:27:17 +0000 (18:27 +0000)]
re PR fortran/91642 (ICE: Bad IO basetype (transfer_expr, at fortran/trans-io.c:2507))

2019-09-11  Steven G. Kargl  <kargl@gcc.gnu.org>

PR fortran/91642
* io.c (gfc_match_inquire): null() cannot be in an iolength inquire
list.

2019-09-11  Steven G. Kargl  <kargl@gcc.gnu.org>

PR fortran/91642
* gfortran.dg/pr91642.f90: New test.

From-SVN: r275655

5 years agoSimplify the code.
Michael Meissner [Wed, 11 Sep 2019 18:20:57 +0000 (18:20 +0000)]
Simplify the code.

2019-09-11  Michael Meissner  <meissner@linux.ibm.com>

* config/rs6000/predicates.md (non_add_cint_operand): Simplify the
code.

From-SVN: r275652

5 years agocompiler: suppress type descriptor generation for aliases
Ian Lance Taylor [Wed, 11 Sep 2019 14:25:52 +0000 (14:25 +0000)]
compiler: suppress type descriptor generation for aliases

    Change Named_object::get_backend to ignore aliases when creating type
    descriptors for types, to be consistent with
    Type::needs_specific_type_functions and the Specific_type_functions
    traversal class. For example, when compiling a package that creates an
    alias to an an externally defined type, e.g.

       import "foo"
       type MyFoo = foo.Foo

    it makes sense to skip the alias (not try to generate type specific
    functions for it) and let the normal mechanisms take care of the alias
    target, depending on whether the target is defined locally or defined
    elsewhere.

    Testcase for this problen can be found in CL 193261.

    Fixes golang/go#33866.

    Reviewed-on: https://go-review.googlesource.com/c/gofrontend/+/191961

From-SVN: r275651

5 years agogolang.org/x/sys/cpu: define doinit when needed
Ian Lance Taylor [Wed, 11 Sep 2019 14:06:05 +0000 (14:06 +0000)]
golang.org/x/sys/cpu: define doinit when needed

    Should fix the build on riscv64 and other systems.

    Reviewed-on: https://go-review.googlesource.com/c/gofrontend/+/194641

From-SVN: r275650

5 years agogotest: force test package to be imported first
Ian Lance Taylor [Wed, 11 Sep 2019 12:44:12 +0000 (12:44 +0000)]
gotest: force test package to be imported first

    When compiling the x_test package, force the test package to be
    imported first.  That ensures that we will see the types defined in
    the test package before the types defined in the non-test version of
    the package.  This matters if the types differ in some way, such as by
    adding a new method.

    This avoids a failure in internal/poll on Solaris, in which the test
    package adds a method to a type (FD.EOFError).  I think it was Solaris-
    specific because files are sorted in a different order by default.

    The go tool handles this kind of thing correctly, by rebuilding
    dependent packages.  This is just a hack sufficient to run the libgo
    testsuite without using the go tool.

    Fixes https://gcc.gnu.org/PR91712

    Reviewed-on: https://go-review.googlesource.com/c/gofrontend/+/194637

From-SVN: r275648

5 years agoFix Xmethod for shared_ptr::use_count()
Jonathan Wakely [Wed, 11 Sep 2019 11:38:23 +0000 (12:38 +0100)]
Fix Xmethod for shared_ptr::use_count()

This was reported in https://bugzilla.redhat.com/show_bug.cgi?id=1749578

* python/libstdcxx/v6/xmethods.py (SharedPtrUseCountWorker.__call__):
Fix syntax error.

From-SVN: r275644

5 years agoFix libstdc++ tests for -Wvolatile warnings in C++2a mode
Jonathan Wakely [Wed, 11 Sep 2019 11:38:15 +0000 (12:38 +0100)]
Fix libstdc++ tests for -Wvolatile warnings in C++2a mode

* testsuite/20_util/result_of/sfinae_friendly_1.cc: Add -Wno-volatile
for C++2a and up. Define HAS_52748_FIXED and fix incorrect tests.
* testsuite/tr1/3_function_objects/result_of.cc: Add -Wno-volatile
for C++2a and up.

From-SVN: r275643

5 years agore PR rtl-optimization/89435 (wrong code with -O1 -march=armv4 -fno-forward-propagate...
Jakub Jelinek [Wed, 11 Sep 2019 11:37:39 +0000 (13:37 +0200)]
re PR rtl-optimization/89435 (wrong code with -O1 -march=armv4 -fno-forward-propagate with __builtin_sub_overflow())

PR rtl-optimization/89435
PR rtl-optimization/89795
PR rtl-optimization/91720
* gcc.dg/pr89435.c: New test.
* gcc.dg/pr89795.c: New test.
* gcc.dg/pr91720.c: New test.

From-SVN: r275642

5 years ago[PATCH] some tree struct marking
Nathan Sidwell [Wed, 11 Sep 2019 11:28:00 +0000 (11:28 +0000)]
[PATCH] some tree struct marking

https://gcc.gnu.org/ml/gcc-patches/2019-09/msg00697.html
gcc/
* tree.h (MARK_TS_TYPE_NON_COMMON): New.
* tree.c (tree_node_structure_for_code): Reformat and alphabetize.

gcc/cp/
* c-objcp-common.c (cp-objcp-common.c): Alphababetize and
correctly mark all C++ nodes.

From-SVN: r275641

5 years agolto-opts.c (lto_write_options): Stream -g when debug is enabled.
Richard Biener [Wed, 11 Sep 2019 11:20:35 +0000 (11:20 +0000)]
lto-opts.c (lto_write_options): Stream -g when debug is enabled.

2019-09-11  Richard Biener  <rguenther@suse.de>

* lto-opts.c (lto_write_options): Stream -g when debug is enabled.
* lto-wrapper.c (merge_and_complain): Pick up -g.
(append_compiler_options): Likewise.
(run_gcc): Re-instantiate handling -g0 at link-time.
* doc/invoke.texi (flto): Document debug info generation.

From-SVN: r275640

5 years agore PR tree-optimization/90387 (__builtin_constant_p and -Warray-bounds warnings)
Richard Biener [Wed, 11 Sep 2019 11:16:54 +0000 (11:16 +0000)]
re PR tree-optimization/90387 (__builtin_constant_p and -Warray-bounds warnings)

2019-09-11  Richard Biener  <rguenther@suse.de>

PR tree-optimization/90387
* vr-values.c (vr_values::extract_range_basic): After inlining
simplify non-constant __builtin_constant_p to false.

* gcc.dg/Warray-bounds-44.c: New testcase.

From-SVN: r275639

5 years agore PR rtl-optimization/89795 (wrong code with -O2 -fno-dce -fno-forward-propagate...
Eric Botcazou [Wed, 11 Sep 2019 10:41:27 +0000 (10:41 +0000)]
re PR rtl-optimization/89795 (wrong code with -O2 -fno-dce -fno-forward-propagate -fno-sched-pressure)

PR rtl-optimization/89795
* rtlanal.c (nonzero_bits1) <SUBREG>: Do not propagate results from
inner REGs to paradoxical SUBREGs if WORD_REGISTER_OPERATIONS is set.

From-SVN: r275635

5 years agore PR tree-optimization/91723 (builtin fma is not optimized or vectorized as *+)
Jakub Jelinek [Wed, 11 Sep 2019 08:34:41 +0000 (10:34 +0200)]
re PR tree-optimization/91723 (builtin fma is not optimized or vectorized as *+)

PR tree-optimization/91723
* tree-vect-stmts.c (vectorizable_call): Use types_compatible_p check
instead of pointer equality when checking if argument vectypes are
the same.

* gcc.dg/vect/vect-fma-3.c: New test.

From-SVN: r275634

5 years agore PR middle-end/91725 (ICE in get_nonzero_bits starting with r275587)
Jakub Jelinek [Wed, 11 Sep 2019 08:33:55 +0000 (10:33 +0200)]
re PR middle-end/91725 (ICE in get_nonzero_bits starting with r275587)

PR middle-end/91725
* match.pd ((A / (1 << B)) -> (A >> B)): Call tree_nonzero_bits instead
of get_nonzero_bits, only call it for integral types.

* gcc.c-torture/compile/pr91725.c: New test.

From-SVN: r275633

5 years agorevert: match.pd: Add flag_unsafe_math_optimizations check before deciding on the...
Richard Biener [Wed, 11 Sep 2019 08:22:51 +0000 (08:22 +0000)]
revert: match.pd: Add flag_unsafe_math_optimizations check before deciding on the widest type in...

2019-09-11  Richard Biener  <rguenther@suse.de>

Revert
2019-09-09  Barnaby Wilks  <barnaby.wilks@arm.com>

* match.pd: Add flag_unsafe_math_optimizations check
before deciding on the widest type in a binary math operation.

* gcc.dg/fold-binary-math-casts.c: New test.

From-SVN: r275632

5 years agoUpdate my email address
Tobias Burnus [Wed, 11 Sep 2019 08:14:54 +0000 (10:14 +0200)]
Update my email address

2019-09-10  Tobias Burnus  <tobias@codesourcery.com>

        * MAINTAINERS: Update my email address.

From-SVN: r275631

5 years agoDaily bump.
GCC Administrator [Wed, 11 Sep 2019 00:16:38 +0000 (00:16 +0000)]
Daily bump.

From-SVN: r275622

5 years agoPR c++/91673 - ICE with noexcept in alias-declaration.
Marek Polacek [Tue, 10 Sep 2019 23:22:37 +0000 (23:22 +0000)]
PR c++/91673 - ICE with noexcept in alias-declaration.

* parser.c (CP_PARSER_FLAGS_DELAY_NOEXCEPT): New parser flag.
(cp_parser_lambda_declarator_opt): Pass CP_PARSER_FLAGS_NONE to
cp_parser_exception_specification_opt.
(cp_parser_direct_declarator): Adjust a call to
cp_parser_exception_specification_opt.
(cp_parser_member_declaration): Pass CP_PARSER_FLAGS_DELAY_NOEXCEPT
to cp_parser_declarator if not processing a friend or typedef
declaration.
(cp_parser_late_noexcept_specifier): Adjust a call to
cp_parser_noexcept_specification_opt.
(cp_parser_noexcept_specification_opt): New parameter for parser flags,
drop the FRIEND_P parameter.  Use the new parameter.
(cp_parser_exception_specification_opt): Likewise.
(cp_parser_transaction): Adjust a call to
cp_parser_noexcept_specification_opt.
(cp_parser_transaction_expression): Likewise.

* g++.dg/cpp1z/using7.C: New test.
* g++.dg/cpp1z/using8.C: New test.

From-SVN: r275617

5 years agoPR c++/91705 - constexpr evaluation rejects ++/-- on floats.
Marek Polacek [Tue, 10 Sep 2019 21:04:33 +0000 (21:04 +0000)]
PR c++/91705 - constexpr evaluation rejects ++/-- on floats.

* constexpr.c (cxx_eval_increment_expression): Call fold_simple on
the offset.

* g++.dg/cpp1y/constexpr-incr2.C: New test.

From-SVN: r275613

5 years agolibgo: Solaris and x/sys/cpu compatibility fixes
Ian Lance Taylor [Tue, 10 Sep 2019 20:41:04 +0000 (20:41 +0000)]
libgo: Solaris and x/sys/cpu compatibility fixes

    Restore Solaris compatibility fixes lost when internal/x/net/lif moved
    to golang.org/x/net/lif.  Also fix the Makefile for x/net/lif and
    x/net/route.

    Change x/sys/cpu to get the cache line size from goarch.sh as the
    gofrontend version of internal/cpu does.

    Partially based on work by Rainer Orth.

    Reviewed-on: https://go-review.googlesource.com/c/gofrontend/+/194438

From-SVN: r275611

5 years agore PR go/91621 (libgo/mksysinfo.sh: please avoid test ==)
Ian Lance Taylor [Tue, 10 Sep 2019 20:32:20 +0000 (20:32 +0000)]
re PR go/91621 (libgo/mksysinfo.sh: please avoid test ==)

PR go/91621
    mksysinfo: change test == to test =

    Fixes https://gcc.gnu.org/PR91621

    Reviewed-on: https://go-review.googlesource.com/c/gofrontend/+/194569

From-SVN: r275608