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| author | Andrew Trick <atrick@apple.com> | 2011-08-10 04:29:49 +0000 |
|---|---|---|
| committer | Andrew Trick <atrick@apple.com> | 2011-08-10 04:29:49 +0000 |
| commit | 39f40299a6efc06747db0de53deb9be248913998 (patch) | |
| tree | 8608ebdf69e6320adcffed565af017fe6c10fb35 /lib/Transforms/Scalar/LoopUnrollPass.cpp | |
| parent | bddb7f82103deb226baa6793f41c5961661167e7 (diff) | |
| download | llvm-39f40299a6efc06747db0de53deb9be248913998.tar.gz llvm-39f40299a6efc06747db0de53deb9be248913998.tar.bz2 llvm-39f40299a6efc06747db0de53deb9be248913998.tar.xz | |
Invoke SimplifyIndVar when we partially unroll a loop. Fixes PR10534.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137203 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Transforms/Scalar/LoopUnrollPass.cpp')
| -rw-r--r-- | lib/Transforms/Scalar/LoopUnrollPass.cpp | 5 |
1 files changed, 1 insertions, 4 deletions
diff --git a/lib/Transforms/Scalar/LoopUnrollPass.cpp b/lib/Transforms/Scalar/LoopUnrollPass.cpp index 6d7901f88c..94afff6813 100644 --- a/lib/Transforms/Scalar/LoopUnrollPass.cpp +++ b/lib/Transforms/Scalar/LoopUnrollPass.cpp @@ -79,6 +79,7 @@ namespace { AU.addPreservedID(LoopSimplifyID); AU.addRequiredID(LCSSAID); AU.addPreservedID(LCSSAID); + AU.addRequired<ScalarEvolution>(); AU.addPreserved<ScalarEvolution>(); // FIXME: Loop unroll requires LCSSA. And LCSSA requires dom info. // If loop unroll does not preserve dom info then LCSSA pass on next @@ -187,12 +188,8 @@ bool LoopUnroll::runOnLoop(Loop *L, LPPassManager &LPM) { } // Unroll the loop. - Function *F = L->getHeader()->getParent(); if (!UnrollLoop(L, Count, TripCount, TripMultiple, LI, &LPM)) return false; - // FIXME: Reconstruct dom info, because it is not preserved properly. - if (DominatorTree *DT = getAnalysisIfAvailable<DominatorTree>()) - DT->runOnFunction(*F); return true; } |