================
@@ -4189,6 +4189,53 @@ static bool interp__builtin_ia32_gfni_mul(InterpState
&S, CodePtr OpPC,
return true;
}
+static bool interp__builtin_ia32_vpdp(InterpState &S, CodePtr OpPC,
+ const CallExpr *Call, bool IsDottingWord,
+ bool IsSaturating) {
+ const auto *SrcVecT = Call->getArg(0)->getType()->castAs<VectorType>();
+ const auto *OpAVecT = Call->getArg(1)->getType()->castAs<VectorType>();
+ const auto *OpBVecT = Call->getArg(2)->getType()->castAs<VectorType>();
+
+ PrimType SrcElemT = *S.getContext().classify(SrcVecT->getElementType());
+ PrimType OpAElemT = *S.getContext().classify(OpAVecT->getElementType());
+ PrimType OpBElemT = *S.getContext().classify(OpBVecT->getElementType());
+
+ unsigned NumElements = SrcVecT->getNumElements();
+ unsigned Iters = IsDottingWord ? 2 : 4;
+
+ const Pointer &OpBPtr = S.Stk.pop<Pointer>();
+ const Pointer &OpAPtr = S.Stk.pop<Pointer>();
+ const Pointer &SrcPtr = S.Stk.pop<Pointer>();
+ const Pointer &Dst = S.Stk.peek<Pointer>();
+
+ for (unsigned I = 0; I < NumElements; ++I) {
+ APSInt Acc;
+ INT_TYPE_SWITCH_NO_BOOL(SrcElemT, { Acc = SrcPtr.elem<T>(I).toAPSInt(); });
+ Acc = Acc.sext(64);
+ for (unsigned J = 0; J < Iters; ++J) {
----------------
tbaederr wrote:
```suggestion
for (unsigned J = 0; J != Iters; ++J) {
```
https://github.com/llvm/llvm-project/pull/190549
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