================
@@ -16423,8 +16486,8 @@ void RISCVTargetLowering::ReplaceNodeResults(SDNode *N,
Opc = RISCVISD::MULQR;
break;
default:
- // pas/psa/psas/pssa/paas/pasa and pmerge: re-emit at the widened type
----------------
sihuan wrote:
`pmulh*` have a concrete opcode from `getRVPMulHighOpcode`, so they shouldn't
fall through here — handle them like `paadd`/`pmulq` above:
```cpp
case Intrinsic::riscv_pmulh:
case Intrinsic::riscv_pmulhr:
case Intrinsic::riscv_pmulhu:
case Intrinsic::riscv_pmulhru:
case Intrinsic::riscv_pmulhsu:
case Intrinsic::riscv_pmulhrsu:
Opc = getRVPMulHighOpcode(IntNo);
break;
```
The re-emit fallback is for ops with no single-node form (pas/psa/pmerge).
https://github.com/llvm/llvm-project/pull/211223
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