diff options
Diffstat (limited to 'gcc/config/i386/x86-tune.def')
| -rw-r--r-- | gcc/config/i386/x86-tune.def | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/gcc/config/i386/x86-tune.def b/gcc/config/i386/x86-tune.def index 53e177a..9b43588 100644 --- a/gcc/config/i386/x86-tune.def +++ b/gcc/config/i386/x86-tune.def @@ -647,6 +647,14 @@ DEF_TUNE (X86_TUNE_NOT_UNPAIRABLE, "not_unpairable", m_PENT | m_LAKEMONT) and can happen in caller/callee saving sequences. */ DEF_TUNE (X86_TUNE_PARTIAL_REG_STALL, "partial_reg_stall", m_PPRO) +/* X86_TUNE_PARTIAL_MEMORY_READ_STALL: Reading (possible unaligned) part of + memory location after a large write to the same address causes + store-to-load forwarding stall. */ +DEF_TUNE (X86_TUNE_PARTIAL_MEMORY_READ_STALL, "partial_memoy_read_stall", + m_386 | m_486 | m_PENT | m_LAKEMONT | m_PPRO | m_P4_NOCONA | m_CORE2 + | m_SILVERMONT | m_GOLDMONT | m_GOLDMONT_PLUS | m_TREMONT + | m_K6_GEODE | m_ATHLON_K8 | m_AMDFAM10) + /* X86_TUNE_PROMOTE_QIMODE: When it is cheap, turn 8bit arithmetic to corresponding 32bit arithmetic. */ DEF_TUNE (X86_TUNE_PROMOTE_QIMODE, "promote_qimode", |