diff options
Diffstat (limited to 'gcc/config/i386/x86-tune.def')
| -rw-r--r-- | gcc/config/i386/x86-tune.def | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/gcc/config/i386/x86-tune.def b/gcc/config/i386/x86-tune.def index e6044c6..a86cbad 100644 --- a/gcc/config/i386/x86-tune.def +++ b/gcc/config/i386/x86-tune.def @@ -31,7 +31,7 @@ see the files COPYING3 and COPYING.RUNTIME respectively. If not, see - Updating ix86_issue_rate and ix86_adjust_cost in i386.md - possibly updating ia32_multipass_dfa_lookahead, ix86_sched_reorder and ix86_sched_init_global if those tricks are needed. - - Tunning the flags bellow. Those are split into sections and each + - tuning flags below; those are split into sections and each section is very roughly ordered by importance. */ /*****************************************************************************/ @@ -572,6 +572,11 @@ DEF_TUNE (X86_TUNE_V2DF_REDUCTION_PREFER_HADDPD, DEF_TUNE (X86_TUNE_SSE_MOVCC_USE_BLENDV, "sse_movcc_use_blendv", ~m_CORE_ATOM) +/* X86_TUNE_V4SI_REDUCTION_PREFER_SHUFD: Prefer pshuf to reduce V16QI, + V8HI, V8HI, V4SI, V4FI, V2DI modes when lshr are costlier. */ +DEF_TUNE (X86_TUNE_SSE_REDUCTION_PREFER_PSHUF, + "sse_reduction_prefer_pshuf", m_ZNVER4 | m_ZNVER5) + /*****************************************************************************/ /* AVX instruction selection tuning (some of SSE flags affects AVX, too) */ /*****************************************************************************/ @@ -634,6 +639,11 @@ DEF_TUNE (X86_TUNE_AVX512_STORE_BY_PIECES, "avx512_store_by_pieces", DEF_TUNE (X86_TUNE_AVX512_TWO_EPILOGUES, "avx512_two_epilogues", m_ZNVER4 | m_ZNVER5) +/* X86_TUNE_AVX512_MAKED_EPILOGUES: Use two masked vector epilogues + when fit. */ +DEF_TUNE (X86_TUNE_AVX512_MASKED_EPILOGUES, "avx512_masked_epilogues", + m_ZNVER4 | m_ZNVER5) + /*****************************************************************************/ /*****************************************************************************/ /* Historical relics: tuning flags that helps a specific old CPU designs */ |