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(parent: de7c37e) | patch
Indvars: Don't recursively delete instruction during BB iteration.
authorBenjamin Kramer <benny.kra@googlemail.com>
Fri, 19 Oct 2012 17:53:54 +0000 (17:53 +0000)
committerBenjamin Kramer <benny.kra@googlemail.com>
Fri, 19 Oct 2012 17:53:54 +0000 (17:53 +0000)
commit7182126b0f3100cfddfbe6939be1a7eaeaf9fd57
tree826a81a559510bbb9bfad69d680f5ba0af3cbf9atree | snapshot
parentde7c37efe2af87377ad3cdc707c61c0fa02c4038commit | diff
Indvars: Don't recursively delete instruction during BB iteration.

This can invalidate the iterators leading to use after frees and crashes.
Fixes PR12536.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166291 91177308-0d34-0410-b5e6-96231b3b80d8
lib/Transforms/Scalar/IndVarSimplify.cpp diff | blob | history
test/Transforms/IndVarSimplify/crash.ll diff | blob | history
C/C++ LLVM-based compilers that forbids OOTA behaviors