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| author | Eli Friedman <eli.friedman@gmail.com> | 2012-02-16 00:41:10 +0000 |
|---|---|---|
| committer | Eli Friedman <eli.friedman@gmail.com> | 2012-02-16 00:41:10 +0000 |
| commit | 5e6162e75645122b6afdbca8ba55294e073dc369 (patch) | |
| tree | 86b6c20e3394435d182f6d7b2ecf12935c5788e4 /lib/Transforms/Scalar/LoopRotation.cpp | |
| parent | 8bcde2aa66415ba2e63b22d2a3c1750bfb25b550 (diff) | |
| download | llvm-5e6162e75645122b6afdbca8ba55294e073dc369.tar.gz llvm-5e6162e75645122b6afdbca8ba55294e073dc369.tar.bz2 llvm-5e6162e75645122b6afdbca8ba55294e073dc369.tar.xz | |
loop-rotate shouldn't hoist alloca instructions out of a loop. Patch by Patrik Hägglund, with slightly modified test. Issue reported by Patrik Hägglund on llvmdev.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150642 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Transforms/Scalar/LoopRotation.cpp')
| -rw-r--r-- | lib/Transforms/Scalar/LoopRotation.cpp | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/lib/Transforms/Scalar/LoopRotation.cpp b/lib/Transforms/Scalar/LoopRotation.cpp index 7a60ad2047..59aace9e36 100644 --- a/lib/Transforms/Scalar/LoopRotation.cpp +++ b/lib/Transforms/Scalar/LoopRotation.cpp @@ -339,7 +339,8 @@ bool LoopRotate::rotateLoop(Loop *L) { // memory (without proving that the loop doesn't write). if (L->hasLoopInvariantOperands(Inst) && !Inst->mayReadFromMemory() && !Inst->mayWriteToMemory() && - !isa<TerminatorInst>(Inst) && !isa<DbgInfoIntrinsic>(Inst)) { + !isa<TerminatorInst>(Inst) && !isa<DbgInfoIntrinsic>(Inst) && + !isa<AllocaInst>(Inst)) { Inst->moveBefore(LoopEntryBranch); continue; } |