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| author | Sam McCall <sam.mccall@gmail.com> | 2016-11-01 22:02:14 +0000 |
|---|---|---|
| committer | Sam McCall <sam.mccall@gmail.com> | 2016-11-01 22:02:14 +0000 |
| commit | 2a36eee4cadaebe39271cff9bef755e158043a9e (patch) | |
| tree | 4e5196efdaf9141c2f7b1387bf1b411bf14e4e43 /llvm/lib/CodeGen/CodeGen.cpp | |
| parent | a6319b82cab41666ae3a65299887cec29f12027d (diff) | |
| download | bcm5719-llvm-2a36eee4cadaebe39271cff9bef755e158043a9e.tar.gz bcm5719-llvm-2a36eee4cadaebe39271cff9bef755e158043a9e.zip | |
Fix uninitialized access in MachineBlockPlacement.
Summary:
Currently PreferredLoopExit is set only in buildLoopChains, which is
never called if there are no MachineLoops.
MSan is currently broken by this:
http://lab.llvm.org:8011/builders/sanitizer-x86_64-linux-fast/builds/145/steps/check-llvm%20msan/logs/stdio
This is a naive fix to get things green again. iteratee: you may have a better fix.
This change will also mean PreferredLoopExit will not carry over if
buildCFGChains() is called a second time in runOnMachineFunction, this
appears to be the right thing.
Reviewers: bkramer, iteratee, echristo
Subscribers: llvm-commits
Differential Revision: https://reviews.llvm.org/D26069
llvm-svn: 285757
Diffstat (limited to 'llvm/lib/CodeGen/CodeGen.cpp')
0 files changed, 0 insertions, 0 deletions
