================
@@ -5101,6 +5101,36 @@ bool InterpretBuiltin(InterpState &S, CodePtr OpPC,
const CallExpr *Call,
unsigned SrcIdx = (ShuffleMask >> 6) & 0x1;
return std::pair<unsigned, int>{SrcIdx, Offset};
});
+ case X86::BI__builtin_ia32_vperm2f128_pd256:
+ return interp__builtin_ia32_shuffle_generic(
+ S, OpPC, Call, [](unsigned DstIdx, unsigned ShuffleMask) {
+ unsigned i = DstIdx >> 1;
+ unsigned k = ShuffleMask >> (i << 2);
----------------
tbaederr wrote:
```suggestion
unsigned K = ShuffleMask >> (i << 2);
```
What does `K` mean?
https://github.com/llvm/llvm-project/pull/172149
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