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| author | Devang Patel <dpatel@apple.com> | 2007-07-31 16:52:25 +0000 |
|---|---|---|
| committer | Devang Patel <dpatel@apple.com> | 2007-07-31 16:52:25 +0000 |
| commit | d8b1ceb5b49ac584097e9b781cc102bac1de566d (patch) | |
| tree | 6a132fac4b2ad02d4e930065ab3f4c16fff26052 /llvm | |
| parent | 578611857db6d16ab2c1a74382ac2c521cc7c046 (diff) | |
| download | bcm5719-llvm-d8b1ceb5b49ac584097e9b781cc102bac1de566d.tar.gz bcm5719-llvm-d8b1ceb5b49ac584097e9b781cc102bac1de566d.zip | |
Add note.
llvm-svn: 40638
Diffstat (limited to 'llvm')
| -rw-r--r-- | llvm/lib/Transforms/Scalar/LICM.cpp | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/llvm/lib/Transforms/Scalar/LICM.cpp b/llvm/lib/Transforms/Scalar/LICM.cpp index 669afa33ac9..ede3bd9dde6 100644 --- a/llvm/lib/Transforms/Scalar/LICM.cpp +++ b/llvm/lib/Transforms/Scalar/LICM.cpp @@ -218,7 +218,9 @@ namespace { LoopPass *llvm::createLICMPass() { return new LICM(); } -/// Hoist expressions out of the specified loop... +/// Hoist expressions out of the specified loop. Note, alias info for inner +/// loop is not preserved so it is not a good idea to run LICM multiple +/// times on one loop. /// bool LICM::runOnLoop(Loop *L, LPPassManager &LPM) { Changed = false; |
