RPCS3/llvm-mirror
1
0
Fork 0
mirror of https://github.com/RPCS3/llvm-mirror.git synced 2025-02-01 13:11:39 +01:00
Code Issues Projects Releases Wiki Activity

If we can't avoid running loop-simplify twice for now, at least avoid running

Browse Source 
iv-users twice.

llvm-svn: 125318
This commit is contained in:
Cameron Zwarich 2011-02-10 23:53:14 +00:00
parent 9d8ab7d0f7
commit 38343ff97c
1 changed files with 3 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
lib/Transforms/Scalar/LoopStrengthReduce.cpp
View File

@ -3824,6 +3824,9 @@ void LoopStrengthReduce::getAnalysisUsage(AnalysisUsage &AU) const {
AU.addPreserved<DominatorTree>();
AU.addRequired<ScalarEvolution>();
AU.addPreserved<ScalarEvolution>();
// Requiring LoopSimplify a second time here prevents IVUsers from running
// twice, since LoopSimplify was invalidated by running ScalarEvolution.
AU.addRequiredID(LoopSimplifyID);
AU.addRequired<IVUsers>();
AU.addPreserved<IVUsers>();
}