================
@@ -2520,6 +2525,45 @@ static bool interp__builtin_elementwise_fp_binop(
return true;
}
+static bool interp__builtin_scalar_fp_round_mask_binop(
+ InterpState &S, CodePtr OpPC, const CallExpr *Call,
+ llvm::function_ref<APFloat(const APFloat &, const APFloat &)> Fn) {
+ assert(Call->getNumArgs() == 5);
+ const auto *VT = Call->getArg(0)->getType()->castAs<VectorType>();
+ unsigned NumElems = VT->getNumElements();
+
+ APSInt Rounding = popToAPSInt(S, Call->getArg(4));
+ APSInt MaskVal = popToAPSInt(S, Call->getArg(3));
+ const Pointer &SrcPtr = S.Stk.pop<Pointer>();
+ const Pointer &BPtr = S.Stk.pop<Pointer>();
+ const Pointer &APtr = S.Stk.pop<Pointer>();
+ const Pointer &Dst = S.Stk.peek<Pointer>();
+
+ // Only _MM_FROUND_CUR_DIRECTION (4) is supported.
+ if (Rounding != 4)
+ return false;
----------------
RKSimon wrote:
I've raised #178416 - can we get that addressed first and move RoundingMode
handling to the callback?
```
if (RoundingMode.value_or(4) != 4)
return std::nullopt;
```
https://github.com/llvm/llvm-project/pull/178029
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