================
@@ -2937,6 +2937,56 @@ static bool interp__builtin_elementwise_triop(
return true;
}
+static bool interp__builtin_x86_insert_subvector(InterpState &S, CodePtr OpPC,
+ const CallExpr *Call,
+ unsigned ID) {
+ assert(Call->getNumArgs() == 3);
+
+ PrimType ImmPT = *S.getContext().classify(Call->getArg(2));
+ APSInt ImmAPS = popToAPSInt(S.Stk, ImmPT);
+ uint64_t Index = ImmAPS.getZExtValue();
+
+ const Pointer &SubVec = S.Stk.pop<Pointer>();
+ if (!SubVec.getFieldDesc()->isPrimitiveArray()) {
+ return Invalid(S, OpPC);
+ }
+
+ const Pointer &DstVec = S.Stk.pop<Pointer>();
+ if (!DstVec.getFieldDesc()->isPrimitiveArray()) {
+ return Invalid(S, OpPC);
+ }
+
+ const Pointer &Result = S.Stk.peek<Pointer>();
+
+ unsigned DstElements = DstVec.getNumElems();
+ unsigned SubElements = SubVec.getNumElems();
+
+ if (SubElements == 0 || DstElements == 0 || (DstElements % SubElements) != 0)
+ return Invalid(S, OpPC);
+
+ unsigned NumLanes = DstElements / SubElements;
+ unsigned Lane = static_cast<unsigned>(Index % NumLanes);
+
+ QualType ElemType = DstVec.getFieldDesc()->getElemQualType();
+ PrimType ElemPT = *S.getContext().classify(ElemType);
+
+ unsigned InsertPos = Lane * SubElements;
+
+ TYPE_SWITCH(ElemPT, {
+ for (unsigned i = 0; i < DstElements; ++i) {
----------------
tbaederr wrote:
```suggestion
for (unsigned I = 0; i != DstElements; ++i) {
```
https://github.com/llvm/llvm-project/pull/158778
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