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i386.c (ix86_autovectorize_vector_sizes): Return 0 for !flag_prefer_avx128.

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* config/i386/i386.c (ix86_autovectorize_vector_sizes): Return 0
	for !flag_prefer_avx128.
	(ix86_preferred_simd_mode): Return word_mode for DFmode without SSE2.

From-SVN: r173591
This commit is contained in:
Uros Bizjak 2011-05-09 22:51:19 +02:00 committed by Uros Bizjak
parent 754af126c0
commit fca132b919
2 changed files with 31 additions and 19 deletions
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6
gcc/ChangeLog
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@ -1,3 +1,9 @@
2011-05-09 Uros Bizjak <ubizjak@gmail.com>
* config/i386/i386.c (ix86_autovectorize_vector_sizes): Return 0
for !flag_prefer_avx128.
(ix86_preferred_simd_mode): Return word_mode for DFmode without SSE2.
2011-05-09 Eric Botcazou <ebotcazou@adacore.com>
* fold-const.c (fold_range_test): Pass LOC to build_range_check.

44
gcc/config/i386/i386.c
View File

@ -35118,32 +35118,38 @@ has_dispatch (rtx insn, int action)
static enum machine_mode
ix86_preferred_simd_mode (enum machine_mode mode)
{
/* Disable double precision vectorizer if needed. */
if (mode == DFmode && !TARGET_VECTORIZE_DOUBLE)
return word_mode;
if (!TARGET_AVX && !TARGET_SSE)
if (!TARGET_SSE)
return word_mode;
switch (mode)
{
case SFmode:
return (TARGET_AVX && !flag_prefer_avx128) ? V8SFmode : V4SFmode;
case DFmode:
return (TARGET_AVX && !flag_prefer_avx128) ? V4DFmode : V2DFmode;
case DImode:
return V2DImode;
case SImode:
return V4SImode;
case HImode:
return V8HImode;
case QImode:
return V16QImode;
case HImode:
return V8HImode;
case SImode:
return V4SImode;
case DImode:
return V2DImode;
default:;
case SFmode:
if (TARGET_AVX && !flag_prefer_avx128)
return V8SFmode;
else
return V4SFmode;
case DFmode:
if (!TARGET_VECTORIZE_DOUBLE)
return word_mode;
else if (TARGET_AVX && !flag_prefer_avx128)
return V4DFmode;
else if (TARGET_SSE2)
return V2DFmode;
/* FALLTHRU */
default:
return word_mode;
}
return word_mode;
}
/* If AVX is enabled then try vectorizing with both 256bit and 128bit
@ -35152,7 +35158,7 @@ ix86_preferred_simd_mode (enum machine_mode mode)
static unsigned int
ix86_autovectorize_vector_sizes (void)
{
return TARGET_AVX ? 32 | 16 : 0;
return (TARGET_AVX && !flag_prefer_avx128) ? 32 | 16 : 0;
}
/* Initialize the GCC target structure. */