[PATCH] D38415: [SimplifyIndVar] Correctly extract constant LLVM value from SCEV during constant folding

[Hongbin Zheng via Phabricator via llvm-commits]

etherzhhb created this revision.

1. Correctly rewrite ConstantInt Zero to ConstantPointerNull when the type SCEV and the corresponding LLVM value do not match
2. Try to get LLVM Constant from SCEVUnknown


Repository:
  rL LLVM

https://reviews.llvm.org/D38415

Files:
  lib/Transforms/Utils/SimplifyIndVar.cpp
  test/Transforms/IndVarSimplify/constant-fold-1.ll

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