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Summary:
An erroneously negated if-statement by an earlier (March 2019) bugfix left phi replacement/simplification under optimizeMemoryInst() in CodeGenPrepare largely inactivated. The error was found when csmith found that the same assert as in the original bug report could still be triggered in a different way. This patch fixes the bugfix. The original bug was:
https://bugs.llvm.org/show_bug.cgi?id=41052
... and the previous fix was D59358.
Reviewers: aprantl, skatkov
Reviewed By: skatkov
Subscribers: hiraditya, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D67838
llvm-svn: 373084
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