[PATCH] D88806: [SCEV] Model ptrtoint(SCEVUnknown) cast not as unknown, but as zext/trunc/self of SCEVUnknown

Mon Oct 12 09:39:55 PDT 2020

hans added a comment.

Not sure about doom, but it did trigger an assert in Chromium's builds:

llvm/lib/IR/Constants.cpp:1868: static llvm::Constant* llvm::ConstantExpr::getTrunc(llvm::Constant*, llvm::Type*, bool): Assertion `C->getType()->isIntOrIntVectorTy() && "Trunc operand must be integer"' failed.

See https://bugs.chromium.org/p/chromium/issues/detail?id=1137416#c4 for a reproducer.

I've reverted in 17cec6a11a12f815052d56a17ef738cf246a2d9a

Repository:
  rG LLVM Github Monorepo

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  https://reviews.llvm.org/D88806/new/

https://reviews.llvm.org/D88806