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| author | Chris Lattner <sabre@nondot.org> | 2004-04-18 22:45:27 +0000 |
|---|---|---|
| committer | Chris Lattner <sabre@nondot.org> | 2004-04-18 22:45:27 +0000 |
| commit | 85661d0978dbbe678bc51f4e470149cb58f680f8 (patch) | |
| tree | 4680c8ef1331b7cdcf2ad22bad061468a860e786 /lib/Analysis/LoopInfo.cpp | |
| parent | 88d3ef2c744db0289223a4477669f24d542e6d97 (diff) | |
| download | external_llvm-85661d0978dbbe678bc51f4e470149cb58f680f8.zip external_llvm-85661d0978dbbe678bc51f4e470149cb58f680f8.tar.gz external_llvm-85661d0978dbbe678bc51f4e470149cb58f680f8.tar.bz2 | |
Add new method
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13050 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Analysis/LoopInfo.cpp')
| -rw-r--r-- | lib/Analysis/LoopInfo.cpp | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/lib/Analysis/LoopInfo.cpp b/lib/Analysis/LoopInfo.cpp index 270a142..181cae0 100644 --- a/lib/Analysis/LoopInfo.cpp +++ b/lib/Analysis/LoopInfo.cpp @@ -56,6 +56,14 @@ unsigned Loop::getNumBackEdges() const { return NumBackEdges; } +/// isLoopInvariant - Return true if the specified value is loop invariant +/// +bool Loop::isLoopInvariant(Value *V) const { + if (Instruction *I = dyn_cast<Instruction>(V)) + return !contains(I->getParent()); + return true; // All non-instructions are loop invariant +} + void Loop::print(std::ostream &OS, unsigned Depth) const { OS << std::string(Depth*2, ' ') << "Loop Containing: "; |