================
@@ -1949,6 +1949,13 @@ bool SITargetLowering::isExtractSubvectorCheap(EVT
ResVT, EVT SrcVT,
return Index == 0;
}
+bool SITargetLowering::isExtractVecEltCheap(EVT VT, unsigned Index) const {
+ // TODO: This should be more aggressive, particular for 16-bit element
+ // vectors. However there are some mixed improvements and regressions.
+ EVT EltTy = VT.getVectorElementType();
+ return EltTy.getSizeInBits() % 32 == 0;
----------------
Sisyph wrote:
Yes I would think EltTy.getSizeInBits() * Index % 16 == 0 for True16 would be
the way to go.
https://github.com/llvm/llvm-project/pull/122460
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