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| author | Anna Thomas <anna@azul.com> | 2017-05-18 13:12:18 +0000 |
|---|---|---|
| committer | Anna Thomas <anna@azul.com> | 2017-05-18 13:12:18 +0000 |
| commit | 7bca59152adcc521f97a4e13128b214198e6d6df (patch) | |
| tree | 090d5f026cf716e3f7da03c9bb2a1273f772252f /llvm/lib/CodeGen/StackProtector.cpp | |
| parent | a24a3a30d00a43a5aa7e6cdf7b7046438735347c (diff) | |
| download | llvm-7bca59152adcc521f97a4e13128b214198e6d6df.zip llvm-7bca59152adcc521f97a4e13128b214198e6d6df.tar.gz llvm-7bca59152adcc521f97a4e13128b214198e6d6df.tar.bz2 | |
[JumpThreading] Dont RAUW condition incorrectly
Summary:
We have a bug when RAUWing the condition if experimental.guard or assumes is a use of that
condition. This is because LazyValueInfo may have used the guards/assumes to identify the
value of the condition at the end of the block. RAUW replaces the uses
at the guard/assume as well as uses before the guard/assume. Both of
these are incorrect.
For now, disable RAUW for conditions and fix the logic as a next
step: https://reviews.llvm.org/D33257
Reviewers: sanjoy, reames, trentxintong
Subscribers: llvm-commits
Differential Revision: https://reviews.llvm.org/D33279
llvm-svn: 303349
Diffstat (limited to 'llvm/lib/CodeGen/StackProtector.cpp')
0 files changed, 0 insertions, 0 deletions