Reverse order of checking SSE level when calculating compare cost, so we check
AVX2 before AVX.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170464 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/X86/X86ISelLowering.cpp b/lib/Target/X86/X86ISelLowering.cpp
index 34ca24f..42d62b2 100644
--- a/lib/Target/X86/X86ISelLowering.cpp
+++ b/lib/Target/X86/X86ISelLowering.cpp
@@ -17866,10 +17866,10 @@
{ ISD::SETCC, MVT::v32i8, 1 },
};
- if (ST.hasSSE42()) {
- int Idx = FindInTable(SSE42CostTbl, array_lengthof(SSE42CostTbl), ISD, MTy);
+ if (ST.hasAVX2()) {
+ int Idx = FindInTable(AVX2CostTbl, array_lengthof(AVX2CostTbl), ISD, MTy);
if (Idx != -1)
- return LT.first * SSE42CostTbl[Idx].Cost;
+ return LT.first * AVX2CostTbl[Idx].Cost;
}
if (ST.hasAVX()) {
@@ -17878,10 +17878,10 @@
return LT.first * AVX1CostTbl[Idx].Cost;
}
- if (ST.hasAVX2()) {
- int Idx = FindInTable(AVX2CostTbl, array_lengthof(AVX2CostTbl), ISD, MTy);
+ if (ST.hasSSE42()) {
+ int Idx = FindInTable(SSE42CostTbl, array_lengthof(SSE42CostTbl), ISD, MTy);
if (Idx != -1)
- return LT.first * AVX2CostTbl[Idx].Cost;
+ return LT.first * SSE42CostTbl[Idx].Cost;
}
return VectorTargetTransformImpl::getCmpSelInstrCost(Opcode, ValTy, CondTy);