================
@@ -3359,6 +3391,143 @@ static bool
interp__builtin_ia32_cvt_vec2mask(InterpState &S, CodePtr OpPC,
pushInteger(S, RetMask, Call->getType());
return true;
}
+static bool interp__builtin_ia32_cvtsd2ss(InterpState &S, CodePtr OpPC,
+ const CallExpr *Call) {
+ assert(Call->getNumArgs() == 2);
+
+ const Pointer &B = S.Stk.pop<Pointer>();
+ const Pointer &A = S.Stk.pop<Pointer>();
+ if (!CheckLoad(S, OpPC, A) || !CheckLoad(S, OpPC, B))
+ return false;
+
+ const auto *DstVTy = Call->getType()->castAs<VectorType>();
+ unsigned NumElems = DstVTy->getNumElements();
+ const Pointer &Dst = S.Stk.peek<Pointer>();
+
+ // Copy all elements from A to Dst
+ for (unsigned I = 0; I != NumElems; ++I)
+ Dst.elem<Floating>(I) = A.elem<Floating>(I);
+
+ // Convert element 0 from double to float
+ Floating Conv = S.allocFloat(
+ S.getASTContext().getFloatTypeSemantics(S.getASTContext().FloatTy));
+ APFloat SrcD = B.elem<Floating>(0).getAPFloat();
+ if (!convertDoubleToFloatStrict(SrcD, Conv, S, Call))
+ return false;
+ Dst.elem<Floating>(0) = Conv;
+
+ Dst.initializeAllElements();
+ return true;
+}
+
+static bool interp__builtin_ia32_cvtsd2ss_round_mask(InterpState &S,
+ CodePtr OpPC,
+ const CallExpr *Call) {
+ assert(Call->getNumArgs() == 5);
+
+ // Pop in reverse order: rounding, mask, src, b, a
----------------
tbaederr wrote:
```suggestion
```
https://github.com/llvm/llvm-project/pull/169980
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