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Handle Octeon 3 not supporting MIPS paired-single instructions. 

The Octeon 3 processor does not support the MIPS paired-single
instructions.  This results in illegal instruction errors in the
testsuite when vectorization tests try to use those instructions.

This patch teaches the compiler about that lack of support, so that
warnings are given when -mpaired-single (or something implying it) is
used when compiling for such a processor.  I chose to test
TARGET_OCTEON as the simplest conditional; since the older Octeon
processors don't support hard float at all, I don't think the choice
matters for them.  Tests that then failed with the warning were
updated to disable them for Octeon.

Tested with no regressions for cross to mips64el-linux-gnu (Octeon
3).

gcc:
	* config/mips/mips.h (ISA_HAS_PAIRED_SINGLE): Require
	!TARGET_OCTEON.

gcc/testsuite:
	* gcc.target/mips/mips-3d-1.c: Use forbid_cpu=octeon.* in
	dg-options.
	* gcc.target/mips/mips-3d-2.c: Likewise.
	* gcc.target/mips/mips-3d-3.c: Likewise.
	* gcc.target/mips/mips-3d-4.c: Likewise.
	* gcc.target/mips/mips-3d-5.c: Likewise.
	* gcc.target/mips/mips-3d-6.c: Likewise.
	* gcc.target/mips/mips-3d-7.c: Likewise.
	* gcc.target/mips/mips-3d-8.c: Likewise.
	* gcc.target/mips/mips-3d-9.c: Likewise.
	* gcc.target/mips/mips-ps-1.c: Likewise.
	* gcc.target/mips/mips-ps-2.c: Likewise.
	* gcc.target/mips/mips-ps-3.c: Likewise.
	* gcc.target/mips/mips-ps-4.c: Likewise.
	* gcc.target/mips/mips-ps-5.c: Likewise.
	* gcc.target/mips/mips-ps-6.c: Likewise.
	* gcc.target/mips/mips-ps-7.c: Likewise.
	* gcc.target/mips/mips-ps-type.c: Likewise.
	* gcc.target/mips/mips-ps-type-2.c: Likewise.
	* gcc.target/mips/mips16-attributes-6.c: Likewise.

From-SVN: r232517
This commit is contained in:
Joseph Myers 2016-01-18 13:30:43 +00:00 committed by Joseph Myers
parent 46ec7a061e
commit 969028053f
22 changed files with 51 additions and 22 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
gcc/ChangeLog
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@ -1,3 +1,8 @@
2016-01-18 Joseph Myers <joseph@codesourcery.com>
* config/mips/mips.h (ISA_HAS_PAIRED_SINGLE): Require
!TARGET_OCTEON.
2016-01-18 Richard Biener <rguenther@suse.de>
PR middle-end/69308

7
gcc/config/mips/mips.h
View File

@ -1014,9 +1014,10 @@ struct mips_cpu_info {
#define ISA_HAS_LXC1_SXC1 ISA_HAS_FP4
/* ISA has paired-single instructions. */
#define ISA_HAS_PAIRED_SINGLE (ISA_MIPS64 \
|| (mips_isa_rev >= 2 \
&& mips_isa_rev <= 5))
#define ISA_HAS_PAIRED_SINGLE ((ISA_MIPS64 \
|| (mips_isa_rev >= 2 \
&& mips_isa_rev <= 5)) \
&& !TARGET_OCTEON)
/* ISA has conditional trap instructions. */
#define ISA_HAS_COND_TRAP (!ISA_MIPS1 \

23
gcc/testsuite/ChangeLog
View File

@ -1,3 +1,26 @@
2016-01-18 Joseph Myers <joseph@codesourcery.com>
* gcc.target/mips/mips-3d-1.c: Use forbid_cpu=octeon.* in
dg-options.
* gcc.target/mips/mips-3d-2.c: Likewise.
* gcc.target/mips/mips-3d-3.c: Likewise.
* gcc.target/mips/mips-3d-4.c: Likewise.
* gcc.target/mips/mips-3d-5.c: Likewise.
* gcc.target/mips/mips-3d-6.c: Likewise.
* gcc.target/mips/mips-3d-7.c: Likewise.
* gcc.target/mips/mips-3d-8.c: Likewise.
* gcc.target/mips/mips-3d-9.c: Likewise.
* gcc.target/mips/mips-ps-1.c: Likewise.
* gcc.target/mips/mips-ps-2.c: Likewise.
* gcc.target/mips/mips-ps-3.c: Likewise.
* gcc.target/mips/mips-ps-4.c: Likewise.
* gcc.target/mips/mips-ps-5.c: Likewise.
* gcc.target/mips/mips-ps-6.c: Likewise.
* gcc.target/mips/mips-ps-7.c: Likewise.
* gcc.target/mips/mips-ps-type.c: Likewise.
* gcc.target/mips/mips-ps-type-2.c: Likewise.
* gcc.target/mips/mips16-attributes-6.c: Likewise.
2016-01-18 Tom de Vries <tom@codesourcery.com>
* c-c++-common/goacc/kernels-counter-vars-function-scope.c: New test.

2
gcc/testsuite/gcc.target/mips/mips-3d-1.c
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@ -1,5 +1,5 @@
/* { dg-do run } */
/* { dg-options "-mips3d" } */
/* { dg-options "-mips3d forbid_cpu=octeon.*" } */
/* Test MIPS-3D builtin functions */
#include <stdlib.h>

2
gcc/testsuite/gcc.target/mips/mips-3d-2.c
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@ -1,5 +1,5 @@
/* { dg-do run } */
/* { dg-options "-mips3d" } */
/* { dg-options "-mips3d forbid_cpu=octeon.*" } */
/* Test MIPS-3D branch-if-any-two builtin functions */
#include <stdlib.h>

2
gcc/testsuite/gcc.target/mips/mips-3d-3.c
View File

@ -1,5 +1,5 @@
/* { dg-do run } */
/* { dg-options "-mips3d" } */
/* { dg-options "-mips3d forbid_cpu=octeon.*" } */
/* Test MIPS-3D absolute compare builtin functions */
#include <stdlib.h>

2
gcc/testsuite/gcc.target/mips/mips-3d-4.c
View File

@ -1,5 +1,5 @@
/* { dg-do run } */
/* { dg-options "-mips3d" } */
/* { dg-options "-mips3d forbid_cpu=octeon.*" } */
/* Test MIPS-3D branch-if-any-four builtin functions */
#include <stdlib.h>

2
gcc/testsuite/gcc.target/mips/mips-3d-5.c
View File

@ -1,5 +1,5 @@
/* { dg-do run } */
/* { dg-options "-mips3d" } */
/* { dg-options "-mips3d forbid_cpu=octeon.*" } */
/* Test MIPS-3D absolute-compare & branch-if-any-four builtin functions */
#include <stdlib.h>

2
gcc/testsuite/gcc.target/mips/mips-3d-6.c
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@ -1,5 +1,5 @@
/* { dg-do run } */
/* { dg-options "-mips3d" } */
/* { dg-options "-mips3d forbid_cpu=octeon.*" } */
/* Test MIPS-3D absolute compare (floats) builtin functions */
#include <stdlib.h>

2
gcc/testsuite/gcc.target/mips/mips-3d-7.c
View File

@ -1,5 +1,5 @@
/* { dg-do run } */
/* { dg-options "-mips3d" } */
/* { dg-options "-mips3d forbid_cpu=octeon.*" } */
/* Test MIPS-3D absolute compare (doubles) builtin functions */
#include <stdlib.h>

2
gcc/testsuite/gcc.target/mips/mips-3d-8.c
View File

@ -1,5 +1,5 @@
/* { dg-do run } */
/* { dg-options "-mips3d" } */
/* { dg-options "-mips3d forbid_cpu=octeon.*" } */
/* Test MIPS-3D absolute compare and conditional move builtin functions */
#include <stdlib.h>

2
gcc/testsuite/gcc.target/mips/mips-3d-9.c
View File

@ -1,5 +1,5 @@
/* { dg-do run } */
/* { dg-options "-mips3d" } */
/* { dg-options "-mips3d forbid_cpu=octeon.*" } */
/* Matrix Multiplications */
#include <stdlib.h>

2
gcc/testsuite/gcc.target/mips/mips-ps-1.c
View File

@ -1,5 +1,5 @@
/* { dg-do run } */
/* { dg-options "-mpaired-single" } */
/* { dg-options "-mpaired-single forbid_cpu=octeon.*" } */
/* Test v2sf calculations */
#include <stdlib.h>

2
gcc/testsuite/gcc.target/mips/mips-ps-2.c
View File

@ -1,5 +1,5 @@
/* { dg-do run } */
/* { dg-options "-mpaired-single" } */
/* { dg-options "-mpaired-single forbid_cpu=octeon.*" } */
/* Test MIPS paired-single builtin functions */
#include <stdlib.h>

2
gcc/testsuite/gcc.target/mips/mips-ps-3.c
View File

@ -1,5 +1,5 @@
/* { dg-do run } */
/* { dg-options "-mpaired-single" } */
/* { dg-options "-mpaired-single forbid_cpu=octeon.*" } */
/* Test MIPS paired-single conditional move */
#include <stdlib.h>

2
gcc/testsuite/gcc.target/mips/mips-ps-4.c
View File

@ -1,5 +1,5 @@
/* { dg-do run } */
/* { dg-options "-mpaired-single" } */
/* { dg-options "-mpaired-single forbid_cpu=octeon.*" } */
/* Test MIPS paired-single comparisons */
#include <stdlib.h>

2
gcc/testsuite/gcc.target/mips/mips-ps-5.c
View File

@ -1,5 +1,5 @@
/* { dg-do compile } */
/* { dg-options "-mpaired-single -mgp64 -ftree-vectorize" } */
/* { dg-options "-mpaired-single -mgp64 -ftree-vectorize forbid_cpu=octeon.*" } */
/* { dg-skip-if "requires vectorization" { *-*-* } { "-O0" "-Os" } { "" } } */
extern float a[] __attribute__ ((aligned (8)));

2
gcc/testsuite/gcc.target/mips/mips-ps-6.c
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@ -1,7 +1,7 @@
/* mips-ps-2.c with an extra -ffinite-math-only option. This option
changes the way that abs.ps is handled. */
/* { dg-do run } */
/* { dg-options "-mpaired-single -ffinite-math-only" } */
/* { dg-options "-mpaired-single -ffinite-math-only forbid_cpu=octeon.*" } */
/* Test MIPS paired-single builtin functions */
#include <stdlib.h>

2
gcc/testsuite/gcc.target/mips/mips-ps-7.c
View File

@ -1,6 +1,6 @@
/* mips-ps-5.c with -mgp32 instead of -mgp64. */
/* { dg-do compile } */
/* { dg-options "-mgp32 -mpaired-single -ftree-vectorize" } */
/* { dg-options "-mgp32 -mpaired-single -ftree-vectorize forbid_cpu=octeon.*" } */
/* { dg-skip-if "requires vectorization" { *-*-* } { "-O0" "-Os" } { "" } } */
extern float a[] __attribute__ ((aligned (8)));

2
gcc/testsuite/gcc.target/mips/mips-ps-type-2.c
View File

@ -1,7 +1,7 @@
/* Test v2sf calculations. The nmadd and nmsub patterns need
-ffinite-math-only. */
/* { dg-do compile } */
/* { dg-options "(HAS_MADDPS) -mgp32 -mpaired-single -ffinite-math-only" } */
/* { dg-options "(HAS_MADDPS) -mgp32 -mpaired-single -ffinite-math-only forbid_cpu=octeon.*" } */
/* { dg-skip-if "nmadd and nmsub need combine" { *-*-* } { "-O0" } { "" } } */
/* { dg-final { scan-assembler "\tcvt.ps.s\t" } } */
/* { dg-final { scan-assembler "\tmov.ps\t" } } */

2
gcc/testsuite/gcc.target/mips/mips-ps-type.c
View File

@ -1,7 +1,7 @@
/* Test v2sf calculations. The nmadd and nmsub patterns need
-ffinite-math-only. */
/* { dg-do compile } */
/* { dg-options "-mpaired-single -mgp64 -ffinite-math-only" } */
/* { dg-options "-mpaired-single -mgp64 -ffinite-math-only forbid_cpu=octeon.*" } */
/* { dg-skip-if "nmadd and nmsub need combine" { *-*-* } { "-O0" } { "" } } */
/* { dg-final { scan-assembler "\tcvt.ps.s\t" } } */
/* { dg-final { scan-assembler "\tmov.ps\t" } } */

2
gcc/testsuite/gcc.target/mips/mips16-attributes-6.c
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@ -1,5 +1,5 @@
/* { dg-do compile } */
/* { dg-options "-mips16 addressing=absolute -mips3d" } */
/* { dg-options "-mips16 addressing=absolute -mips3d forbid_cpu=octeon.*" } */
static inline NOMIPS16 float
i1 (float f)