================
@@ -8900,6 +8900,82 @@ SDValue PPCTargetLowering::LowerINT_TO_FP(SDValue Op,
return FP;
}
+SDValue PPCTargetLowering::LowerSET_ROUNDING(SDValue Op,
+ SelectionDAG &DAG) const {
+ SDLoc Dl(Op);
+ MachineFunction &MF = DAG.getMachineFunction();
+ EVT PtrVT = getPointerTy(MF.getDataLayout());
+ SDValue Chain = Op.getOperand(0);
+
+ // If requested mode is constant, just use simpler mtfsb.
+ if (auto *CVal = dyn_cast<ConstantSDNode>(Op.getOperand(1))) {
----------------
ecnelises wrote:
Here we want to make sure higher bits are all zeroes. KnownBits and constant
don't make an difference?
https://github.com/llvm/llvm-project/pull/67302
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