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| author | Dan Gohman <gohman@apple.com> | 2009-12-18 01:24:09 +0000 |
|---|---|---|
| committer | Dan Gohman <gohman@apple.com> | 2009-12-18 01:24:09 +0000 |
| commit | 92329c7fbe572892c17aa2d2542a10e3ea16132f (patch) | |
| tree | ce133aeb6883b2cb097896877b881cbb1340287a /lib/Transforms/Scalar/LoopIndexSplit.cpp | |
| parent | 3ca735450db584068f07b728f0537c3e9208a699 (diff) | |
| download | external_llvm-92329c7fbe572892c17aa2d2542a10e3ea16132f.zip external_llvm-92329c7fbe572892c17aa2d2542a10e3ea16132f.tar.gz external_llvm-92329c7fbe572892c17aa2d2542a10e3ea16132f.tar.bz2 | |
Add Loop contains utility methods for testing whether a loop
contains another loop, or an instruction. The loop form is
substantially more efficient on large loops than the typical
code it replaces.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91654 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Transforms/Scalar/LoopIndexSplit.cpp')
| -rw-r--r-- | lib/Transforms/Scalar/LoopIndexSplit.cpp | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/lib/Transforms/Scalar/LoopIndexSplit.cpp b/lib/Transforms/Scalar/LoopIndexSplit.cpp index 8b6a233..1d9dd68 100644 --- a/lib/Transforms/Scalar/LoopIndexSplit.cpp +++ b/lib/Transforms/Scalar/LoopIndexSplit.cpp @@ -288,7 +288,7 @@ bool LoopIndexSplit::runOnLoop(Loop *IncomingLoop, LPPassManager &LPM_Ref) { // isUsedOutsideLoop - Returns true iff V is used outside the loop L. static bool isUsedOutsideLoop(Value *V, Loop *L) { for(Value::use_iterator UI = V->use_begin(), E = V->use_end(); UI != E; ++UI) - if (!L->contains(cast<Instruction>(*UI)->getParent())) + if (!L->contains(cast<Instruction>(*UI))) return true; return false; } @@ -842,7 +842,7 @@ void LoopIndexSplit::updatePHINodes(BasicBlock *ExitBB, BasicBlock *Latch, for (Value::use_iterator UI = PHV->use_begin(), E = PHV->use_end(); UI != E; ++UI) if (PHINode *U = dyn_cast<PHINode>(*UI)) - if (LP->contains(U->getParent())) { + if (LP->contains(U)) { NewV = U; break; } |