[PATCH] D105002: [InferAddressSpaces] NFC: Check type before casting operands to PtrToIntInst

[Reshabh Sharma via Phabricator via llvm-commits]

rksharma added inline comments.


================
Comment at: llvm/lib/Transforms/Scalar/InferAddressSpaces.cpp:473
       if (isNoopPtrIntCastPair(cast<Operator>(I2P), *DL, TTI))
-        PushPtrOperand(
-            cast<PtrToIntInst>(I2P->getOperand(0))->getPointerOperand());
+        if (PtrToIntInst *P2I = dyn_cast<PtrToIntInst>(I2P->getOperand(0)))
+          PushPtrOperand(P2I->getPointerOperand());
----------------
rksharma wrote:
> arsenm wrote:
> > Can't you access the operator operand anyway and still handle constant expressions?
> Are you saying something like,  
> ```
> PushPtrOperand(cast<Operator>(I2P->getOperand(0))->getOperand(0));
> ```
Yes, this will work because it does check for constant expressions inside PushPtrOperand


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  https://reviews.llvm.org/D105002/new/

https://reviews.llvm.org/D105002