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| author | Jan Hubicka <hubicka@ucw.cz> | 2018-01-10 12:02:55 +0100 |
|---|---|---|
| committer | Jan Hubicka <hubicka@gcc.gnu.org> | 2018-01-10 11:02:55 +0000 |
| commit | f6aa5171a1a0091bcc3741b1ffff9e8a962e728c (patch) | |
| tree | 4db28264cf965b36dac7f4c536605ad478da81f7 /gcc/config/i386 | |
| parent | 1fe399e4a94e5bf9bb34362d1e1dc8b74272bc6d (diff) | |
| download | gcc-f6aa5171a1a0091bcc3741b1ffff9e8a962e728c.zip gcc-f6aa5171a1a0091bcc3741b1ffff9e8a962e728c.tar.gz gcc-f6aa5171a1a0091bcc3741b1ffff9e8a962e728c.tar.bz2 | |
re PR target/81616 (Update -mtune=generic for the current Intel and AMD processors)
PR target/81616
* i386.c (ix86_vectorize_builtin_gather): Check TARGET_USE_GATHER.
* i386.h (TARGET_USE_GATHER): Define.
* x86-tune.def (X86_TUNE_USE_GATHER): New.
From-SVN: r256424
Diffstat (limited to 'gcc/config/i386')
| -rw-r--r-- | gcc/config/i386/i386.c | 2 | ||||
| -rw-r--r-- | gcc/config/i386/i386.h | 2 | ||||
| -rw-r--r-- | gcc/config/i386/x86-tune.def | 4 |
3 files changed, 7 insertions, 1 deletions
diff --git a/gcc/config/i386/i386.c b/gcc/config/i386/i386.c index 8696f93..d10b137 100644 --- a/gcc/config/i386/i386.c +++ b/gcc/config/i386/i386.c @@ -38233,7 +38233,7 @@ ix86_vectorize_builtin_gather (const_tree mem_vectype, bool si; enum ix86_builtins code; - if (! TARGET_AVX2) + if (! TARGET_AVX2 || !TARGET_USE_GATHER) return NULL_TREE; if ((TREE_CODE (index_type) != INTEGER_TYPE diff --git a/gcc/config/i386/i386.h b/gcc/config/i386/i386.h index 93b7a2c..6928f80 100644 --- a/gcc/config/i386/i386.h +++ b/gcc/config/i386/i386.h @@ -498,6 +498,8 @@ extern unsigned char ix86_tune_features[X86_TUNE_LAST]; ix86_tune_features[X86_TUNE_SLOW_PSHUFB] #define TARGET_AVOID_4BYTE_PREFIXES \ ix86_tune_features[X86_TUNE_AVOID_4BYTE_PREFIXES] +#define TARGET_USE_GATHER \ + ix86_tune_features[X86_TUNE_USE_GATHER] #define TARGET_FUSE_CMP_AND_BRANCH_32 \ ix86_tune_features[X86_TUNE_FUSE_CMP_AND_BRANCH_32] #define TARGET_FUSE_CMP_AND_BRANCH_64 \ diff --git a/gcc/config/i386/x86-tune.def b/gcc/config/i386/x86-tune.def index 9401d51..0bc928b 100644 --- a/gcc/config/i386/x86-tune.def +++ b/gcc/config/i386/x86-tune.def @@ -399,6 +399,10 @@ DEF_TUNE (X86_TUNE_SLOW_PSHUFB, "slow_pshufb", DEF_TUNE (X86_TUNE_AVOID_4BYTE_PREFIXES, "avoid_4byte_prefixes", m_SILVERMONT | m_INTEL) +/* X86_TUNE_USE_GATHER: Use gather instructions. */ +DEF_TUNE (X86_TUNE_USE_GATHER, "use_gather", + ~(m_ZNVER1 | m_GENERIC)) + /*****************************************************************************/ /* AVX instruction selection tuning (some of SSE flags affects AVX, too) */ /*****************************************************************************/ |