From: H.J. Lu Date: Thu, 18 Jun 2009 21:12:12 +0000 (+0000) Subject: re PR target/40470 (unable to find a register to spill in class ‘SSE_FIRST_REG’) X-Git-Tag: releases/gcc-4.5.0~5124 X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=2a457a9b4fa448489522d39390e857541a95abd5;p=thirdparty%2Fgcc.git re PR target/40470 (unable to find a register to spill in class ‘SSE_FIRST_REG’) gcc/ 2009-06-18 H.J. Lu PR target/40470 * config/i386/i386.h (CLASS_LIKELY_SPILLED_P): Add SSE_FIRST_REG. gcc/testsuite/ 2009-06-18 H.J. Lu 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 --- diff --git a/gcc/ChangeLog b/gcc/ChangeLog index af653560fa48..55ffbfdb0269 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,8 @@ +2009-06-18 H.J. Lu + + PR target/40470 + * config/i386/i386.h (CLASS_LIKELY_SPILLED_P): Add SSE_FIRST_REG. + 2009-06-18 Diego Novillo * doc/plugins.texi: Document plugin_is_GPL_compatible. diff --git a/gcc/config/i386/i386.h b/gcc/config/i386/i386.h index 657c8ae3eefe..7592f6b420c2 100644 --- a/gcc/config/i386/i386.h +++ b/gcc/config/i386/i386.h @@ -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)) diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog index b6a6fe142b82..540f408f78b4 100644 --- a/gcc/testsuite/ChangeLog +++ b/gcc/testsuite/ChangeLog @@ -1,3 +1,11 @@ +2009-06-18 H.J. Lu + + 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 * gcc.dg/plugin/selfassign.c: Declare plugin_is_GPL_compatible. diff --git a/gcc/testsuite/gcc.dg/torture/pr40470-1.c b/gcc/testsuite/gcc.dg/torture/pr40470-1.c new file mode 100644 index 000000000000..cb2510e883b9 --- /dev/null +++ b/gcc/testsuite/gcc.dg/torture/pr40470-1.c @@ -0,0 +1,22 @@ +/* { dg-do compile { target i?86-*-* x86_64-*-* } } */ +/* { dg-options "-msse4" } */ +#include +__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; +} diff --git a/gcc/testsuite/gcc.dg/torture/pr40470-2.c b/gcc/testsuite/gcc.dg/torture/pr40470-2.c new file mode 100644 index 000000000000..b0414bbea91a --- /dev/null +++ b/gcc/testsuite/gcc.dg/torture/pr40470-2.c @@ -0,0 +1,27 @@ +/* { dg-do compile { target i?86-*-* x86_64-*-* } } */ +/* { dg-options "-msse4" } */ +#include +__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; +} diff --git a/gcc/testsuite/gcc.dg/torture/pr40470-3.c b/gcc/testsuite/gcc.dg/torture/pr40470-3.c new file mode 100644 index 000000000000..5c4c361de552 --- /dev/null +++ b/gcc/testsuite/gcc.dg/torture/pr40470-3.c @@ -0,0 +1,22 @@ +/* { dg-do compile { target i?86-*-* x86_64-*-* } } */ +/* { dg-options "-msse4" } */ +#include +__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; +} diff --git a/gcc/testsuite/gcc.dg/torture/pr40470-4.c b/gcc/testsuite/gcc.dg/torture/pr40470-4.c new file mode 100644 index 000000000000..f9d0e5095008 --- /dev/null +++ b/gcc/testsuite/gcc.dg/torture/pr40470-4.c @@ -0,0 +1,29 @@ +/* { dg-do compile { target i?86-*-* x86_64-*-* } } */ +/* { dg-options "-msse4" } */ +#include +__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; +}