[llvm] [X86] abs i8 - perform as abs i32 if we have access to CMOV (PR #95101)

[Phoebe Wang via llvm-commits]

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@@ -28211,9 +28212,14 @@ static SDValue LowerABS(SDValue Op, const X86Subtarget &Subtarget,
   MVT VT = Op.getSimpleValueType();
   SDLoc DL(Op);
 
+  // Since X86 does not have CMOV for 8-bit integer, promote to 32-bit.
+  if (VT == MVT::i8)
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phoebewang wrote:

Should we limit to 64-bit only? I assume we will reduce the available registers by promotion.

https://github.com/llvm/llvm-project/pull/95101