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make inSubLoop much more efficient.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122703 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2011-01-02 18:53:08 +00:00
parent 83fc584ea8
commit 81a866d615
1 changed files with 1 additions and 4 deletions
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5
lib/Transforms/Scalar/LICM.cpp
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@ -131,10 +131,7 @@ namespace {
/// ///
bool inSubLoop(BasicBlock *BB) { bool inSubLoop(BasicBlock *BB) {
assert(CurLoop->contains(BB) && "Only valid if BB is IN the loop"); assert(CurLoop->contains(BB) && "Only valid if BB is IN the loop");
for (Loop::iterator I = CurLoop->begin(), E = CurLoop->end(); I != E; ++I) return LI->getLoopFor(BB) != CurLoop;
if ((*I)->contains(BB))
return true; // A subloop actually contains this block!
return false;
} }
/// sink - When an instruction is found to only be used outside of the loop, /// sink - When an instruction is found to only be used outside of the loop,