================
@@ -11869,6 +11869,52 @@ bool VectorExprEvaluator::VisitCallExpr(const CallExpr
*E) {
return Success(APValue(ResultElements.data(), ResultElements.size()), E);
}
+ case X86::BI__builtin_ia32_vpmadd52luq128:
+ case X86::BI__builtin_ia32_vpmadd52luq256:
+ case X86::BI__builtin_ia32_vpmadd52luq512: {
+ APValue A, B, C;
+ if (!EvaluateAsRValue(Info, E->getArg(0), A) ||
+ !EvaluateAsRValue(Info, E->getArg(1), B) ||
+ !EvaluateAsRValue(Info, E->getArg(2), C))
+ return false;
+
+ unsigned ALen = A.getVectorLength();
+ SmallVector<APValue, 4> ResultElements;
+ ResultElements.reserve(ALen);
+
+ for (unsigned EltNum = 0; EltNum < ALen; EltNum += 1) {
+ APInt AElt = A.getVectorElt(EltNum).getInt();
+ APInt BElt = B.getVectorElt(EltNum).getInt().trunc(52);
+ APInt CElt = C.getVectorElt(EltNum).getInt().trunc(52);
+ APSInt ResElt(AElt + (BElt * CElt).trunc(52).zext(64), false);
----------------
XChy wrote:
```suggestion
APSInt ResElt(AElt + (BElt * CElt).zext(64), false);
```
https://github.com/llvm/llvm-project/pull/161056
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