diff options
Diffstat (limited to 'llvm/lib')
| -rw-r--r-- | llvm/lib/Target/X86/X86ScheduleBtVer2.td | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/llvm/lib/Target/X86/X86ScheduleBtVer2.td b/llvm/lib/Target/X86/X86ScheduleBtVer2.td index 33a6b01546d..adb69cc4408 100644 --- a/llvm/lib/Target/X86/X86ScheduleBtVer2.td +++ b/llvm/lib/Target/X86/X86ScheduleBtVer2.td @@ -174,6 +174,8 @@ multiclass JWriteResYMMPair<X86FoldableSchedWrite SchedRW, } } +// Instructions that have local forwarding disabled have an extra +1cy latency. + // A folded store needs a cycle on the SAGU for the store data, // most RMW instructions don't need an extra uop. defm : X86WriteRes<WriteRMW, [JSAGU], 1, [1], 0>; @@ -575,10 +577,10 @@ defm : JWriteResFpuPair<WriteAESDecEnc, [JFPU01, JVALU, JFPU0, JVIMUL], 3, [1, // Horizontal add/sub instructions. //////////////////////////////////////////////////////////////////////////////// -defm : JWriteResFpuPair<WriteFHAdd, [JFPU0, JFPA], 3>; -defm : JWriteResYMMPair<WriteFHAddY, [JFPU0, JFPA], 3, [2,2], 2>; -defm : JWriteResFpuPair<WritePHAdd, [JFPU01, JVALU], 1>; -defm : JWriteResFpuPair<WritePHAddX, [JFPU01, JVALU], 1>; +defm : JWriteResFpuPair<WriteFHAdd, [JFPU0, JFPA], 4>; // +1cy latency. +defm : JWriteResYMMPair<WriteFHAddY, [JFPU0, JFPA], 4, [2,2], 2>; // +1cy latency. +defm : JWriteResFpuPair<WritePHAdd, [JFPU01, JVALU], 2>; // +1cy latency. +defm : JWriteResFpuPair<WritePHAddX, [JFPU01, JVALU], 2>; // +1cy latency. defm : X86WriteResPairUnsupported<WritePHAddY>; //////////////////////////////////////////////////////////////////////////////// |
