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re PR target/40470 (unable to find a register to spill in class ‘SSE_FIRST_REG’)

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gcc/

2009-06-18  H.J. Lu  <hongjiu.lu@intel.com>

	PR target/40470
	* config/i386/i386.h (CLASS_LIKELY_SPILLED_P): Add SSE_FIRST_REG.

gcc/testsuite/

2009-06-18  H.J. Lu  <hongjiu.lu@intel.com>

	PR target/40470
	* gcc.dg/torture/pr40470-1.c: New.
	* gcc.dg/torture/pr40470-2.c: Likewise.
	* gcc.dg/torture/pr40470-3.c: Likewise.
	* gcc.dg/torture/pr40470-4.c: Likewise.

From-SVN: r148673
This commit is contained in:
H.J. Lu 2009-06-18 21:12:12 +00:00 committed by H.J. Lu
parent fca5bb5ca8
commit 2a457a9b4f
7 changed files with 114 additions and 0 deletions
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5
gcc/ChangeLog
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@ -1,3 +1,8 @@
2009-06-18 H.J. Lu <hongjiu.lu@intel.com>
PR target/40470
* config/i386/i386.h (CLASS_LIKELY_SPILLED_P): Add SSE_FIRST_REG.
2009-06-18 Diego Novillo <dnovillo@google.com>
* doc/plugins.texi: Document plugin_is_GPL_compatible.

1
gcc/config/i386/i386.h
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@ -1498,6 +1498,7 @@ enum reg_class
|| ((CLASS) == AD_REGS) \
|| ((CLASS) == SIREG) \
|| ((CLASS) == DIREG) \
|| ((CLASS) == SSE_FIRST_REG) \
|| ((CLASS) == FP_TOP_REG) \
|| ((CLASS) == FP_SECOND_REG))

8
gcc/testsuite/ChangeLog
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@ -1,3 +1,11 @@
2009-06-18 H.J. Lu <hongjiu.lu@intel.com>
PR target/40470
* gcc.dg/torture/pr40470-1.c: New.
* gcc.dg/torture/pr40470-2.c: Likewise.
* gcc.dg/torture/pr40470-3.c: Likewise.
* gcc.dg/torture/pr40470-4.c: Likewise.
2009-06-18 Diego Novillo <dnovillo@google.com>
* gcc.dg/plugin/selfassign.c: Declare plugin_is_GPL_compatible.

22
gcc/testsuite/gcc.dg/torture/pr40470-1.c Normal file
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@ -0,0 +1,22 @@
/* { dg-do compile { target i?86-*-* x86_64-*-* } } */
/* { dg-options "-msse4" } */
#include <nmmintrin.h>
__m128i load (char *);
char *
foo (char *p1, char *p2,
int bmsk, __m128i mask1, __m128i mask2)
{
int len = 0;
__m128i frag1, frag2;
int cmp_s;
if( !p2[0]) return p1;
if( !p1[0] ) return NULL;
frag2 = load (p2);
frag1 = load (p1);
frag2 = _mm_blendv_epi8(frag2, mask2, mask1);
frag1 = _mm_blendv_epi8(frag1, mask2, mask1);
cmp_s = _mm_cmpistrs(frag2, frag1, 0x0c);
if( cmp_s )
__asm("bsfl %[bmsk], %[len]" : [len] "=r" (len) : [bmsk] "r" (bmsk) );
return p1 + len;
}

27
gcc/testsuite/gcc.dg/torture/pr40470-2.c Normal file
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@ -0,0 +1,27 @@
/* { dg-do compile { target i?86-*-* x86_64-*-* } } */
/* { dg-options "-msse4" } */
#include <nmmintrin.h>
__m128i load (char *);
char *
foo (const unsigned char *s1, const unsigned char *s2,
int bmsk, __m128i frag2)
{
int len = 0;
char *p1 = (char *) s1;
char *p2 = (char *) s2;
__m128i frag1, fruc, mask;
int cmp_c, cmp_s;
if( !p2[0]) return (char *) s1;
if( !p1[0] ) return NULL;
if( p2[1]) frag2 = load (p2);
frag1 = load (p1);
fruc = _mm_loadu_si128 ((__m128i *) s1);
mask = _mm_cmpistrm(fruc, frag2, 0x44);
frag2 = _mm_blendv_epi8(frag2, mask, mask);
frag1 = _mm_blendv_epi8(frag1, mask, mask);
cmp_c = _mm_cmpistrc(frag2, frag1, 0x0c);
cmp_s = _mm_cmpistrs(frag2, frag1, 0x0c);
if( cmp_s & cmp_c )
__asm("bsfl %[bmsk], %[len]" : [len] "=r" (len) : [bmsk] "r" (bmsk) );
return p2 + len;
}

22
gcc/testsuite/gcc.dg/torture/pr40470-3.c Normal file
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@ -0,0 +1,22 @@
/* { dg-do compile { target i?86-*-* x86_64-*-* } } */
/* { dg-options "-msse4" } */
#include <nmmintrin.h>
__m128i load (char *);
char *
foo (char *p1, char *p2,
int bmsk, __m128i mask1, __m128i mask2)
{
int len = 0;
__m128i frag1, frag2;
int cmp_s;
if( !p2[0]) return p1;
if( !p1[0] ) return NULL;
frag2 = load (p2);
frag1 = load (p1);
frag2 = _mm_blendv_epi8(frag2, mask2, mask1);
frag1 = _mm_blendv_epi8(frag1, mask1, mask2);
cmp_s = _mm_cmpistrs(frag2, frag1, 0x0c);
if( cmp_s )
__asm("bsfl %[bmsk], %[len]" : [len] "=r" (len) : [bmsk] "r" (bmsk) );
return p1 + len;
}

29
gcc/testsuite/gcc.dg/torture/pr40470-4.c Normal file
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@ -0,0 +1,29 @@
/* { dg-do compile { target i?86-*-* x86_64-*-* } } */
/* { dg-options "-msse4" } */
#include <nmmintrin.h>
__m128i load (char *);
char *
foo (const unsigned char *s1, const unsigned char *s2,
int bmsk, __m128i frag2)
{
int len = 0;
char *p1 = (char *) s1;
char *p2 = (char *) s2;
__m128i frag1, fruc1, fruc2, mask1, mask2;
int cmp_c, cmp_s;
if( !p2[0]) return (char *) s1;
if( !p1[0] ) return NULL;
if( p2[1]) frag2 = load (p2);
frag1 = load (p1);
fruc1 = _mm_loadu_si128 ((__m128i *) s1);
fruc2 = _mm_loadu_si128 ((__m128i *) s2);
mask1 = _mm_cmpistrm(fruc1, frag2, 0x44);
mask2 = _mm_cmpistrm(fruc2, frag1, 0x14);
frag2 = _mm_blendv_epi8(frag2, mask1, mask2);
frag1 = _mm_blendv_epi8(frag1, mask2, mask1);
cmp_c = _mm_cmpistrc(frag2, frag1, 0x0c);
cmp_s = _mm_cmpistrs(frag2, frag1, 0x0c);
if( cmp_s & cmp_c )
__asm("bsfl %[bmsk], %[len]" : [len] "=r" (len) : [bmsk] "r" (bmsk) );
return p2 + len;
}