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x86-tune.def (TARGET_SLOW_PSHUFB): New tune definition.

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gcc/
        * config/i386/x86-tune.def (TARGET_SLOW_PSHUFB): New tune definition.
        * config/i386/i386.h (TARGET_SLOW_PSHUFB): New tune flag.
        * config/i386/i386.c (expand_vec_perm_even_odd_1): Avoid byte shuffles
        for TARGET_SLOW_PSHUFB

From-SVN: r209465
This commit is contained in:
Evgeny Stupachenko 2014-04-17 07:46:45 +00:00 committed by Kirill Yukhin
parent cf055f6ef6
commit a4ef7f3e57
4 changed files with 16 additions and 2 deletions
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7
gcc/ChangeLog
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@ -1,3 +1,10 @@
2014-04-17 Evgeny Stupachenko <evstupac@gmail.com>
* config/i386/x86-tune.def (TARGET_SLOW_PSHUFB): New tune definition.
* config/i386/i386.h (TARGET_SLOW_PSHUFB): New tune flag.
* config/i386/i386.c (expand_vec_perm_even_odd_1): Avoid byte shuffles
for TARGET_SLOW_PSHUFB
2014-04-17 Evgeny Stupachenko <evstupac@gmail.com>
* config/i386/i386.c (slm_cost): Adjust vec_to_scalar_cost.

5
gcc/config/i386/i386.c
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@ -44026,7 +44026,7 @@ expand_vec_perm_even_odd_1 (struct expand_vec_perm_d *d, unsigned odd)
gcc_unreachable ();
case V8HImode:
if (TARGET_SSSE3)
if (TARGET_SSSE3 && !TARGET_SLOW_PSHUFB)
return expand_vec_perm_pshufb2 (d);
else
{
@ -44049,7 +44049,7 @@ expand_vec_perm_even_odd_1 (struct expand_vec_perm_d *d, unsigned odd)
break;
case V16QImode:
if (TARGET_SSSE3)
if (TARGET_SSSE3 && !TARGET_SLOW_PSHUFB)
return expand_vec_perm_pshufb2 (d);
else
{
@ -46318,6 +46318,7 @@ ix86_add_stmt_cost (void *data, int count, enum vect_cost_for_stmt kind,
{
unsigned *cost = (unsigned *) data;
unsigned retval = 0;
tree vectype = stmt_info ? stmt_vectype (stmt_info) : NULL_TREE;
int stmt_cost = ix86_builtin_vectorization_cost (kind, vectype, misalign);

2
gcc/config/i386/i386.h
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@ -425,6 +425,8 @@ extern unsigned char ix86_tune_features[X86_TUNE_LAST];
ix86_tune_features[X86_TUNE_USE_VECTOR_FP_CONVERTS]
#define TARGET_USE_VECTOR_CONVERTS \
ix86_tune_features[X86_TUNE_USE_VECTOR_CONVERTS]
#define TARGET_SLOW_PSHUFB \
ix86_tune_features[X86_TUNE_SLOW_PSHUFB]
#define TARGET_FUSE_CMP_AND_BRANCH_32 \
ix86_tune_features[X86_TUNE_FUSE_CMP_AND_BRANCH_32]
#define TARGET_FUSE_CMP_AND_BRANCH_64 \

4
gcc/config/i386/x86-tune.def
View File

@ -386,6 +386,10 @@ DEF_TUNE (X86_TUNE_USE_VECTOR_FP_CONVERTS, "use_vector_fp_converts",
from integer to FP. */
DEF_TUNE (X86_TUNE_USE_VECTOR_CONVERTS, "use_vector_converts", m_AMDFAM10)
/* X86_TUNE_SLOW_SHUFB: Indicates tunings with slow pshufb instruction. */
DEF_TUNE (X86_TUNE_SLOW_PSHUFB, "slow_pshufb",
m_BONNELL | m_SILVERMONT | m_INTEL)
/*****************************************************************************/
/* AVX instruction selection tuning (some of SSE flags affects AVX, too) */
/*****************************************************************************/