================
@@ -6397,6 +6397,48 @@ static Value *simplifyBinaryIntrinsic(Function *F, Value
*Op0, Value *Op1,
return Constant::getNullValue(ReturnType);
break;
}
+ case Intrinsic::ptrmask: {
+ // Fail loudly in case this is ever changed.
+ // TODO: If vector types are supported the logic that checks if the mask is
+ // useless should be updated to use generic constants.
+ assert(!Op0->getType()->isVectorTy() && !Op1->getType()->isVectorTy() &&
+ "These simplifications where written at a time when ptrmask did not
"
+ "support vector types and may not work for vectors");
+
+ // NOTE: We can't apply these simplifications based on the value of Op1
+ // because we need to preserve provenance.
+ if (isa<PoisonValue>(Op0))
----------------
nikic wrote:
You can also return poison if op1 is poison.
https://github.com/llvm/llvm-project/pull/67166
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