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| author | Andreas Bolka <a@bolka.at> | 2009-08-06 03:10:33 +0000 |
|---|---|---|
| committer | Andreas Bolka <a@bolka.at> | 2009-08-06 03:10:33 +0000 |
| commit | 3c7b95d9aaaa06a856aa08a6ebce23d4825b15d9 (patch) | |
| tree | a30733627e9a4a930f178eccb2381da6bd0d6828 /llvm/lib/Analysis/LoopDependenceAnalysis.cpp | |
| parent | aa5e5fd2f43f3b66565108bb7182d5575d9fe3db (diff) | |
| download | llvm-3c7b95d9aaaa06a856aa08a6ebce23d4825b15d9.zip llvm-3c7b95d9aaaa06a856aa08a6ebce23d4825b15d9.tar.gz llvm-3c7b95d9aaaa06a856aa08a6ebce23d4825b15d9.tar.bz2 | |
Simplify the ZIV tester to the max.
As suggested by Nick Lewycky.
llvm-svn: 78277
Diffstat (limited to 'llvm/lib/Analysis/LoopDependenceAnalysis.cpp')
| -rw-r--r-- | llvm/lib/Analysis/LoopDependenceAnalysis.cpp | 5 |
1 files changed, 2 insertions, 3 deletions
diff --git a/llvm/lib/Analysis/LoopDependenceAnalysis.cpp b/llvm/lib/Analysis/LoopDependenceAnalysis.cpp index 10a6a8e..eb8ea0e 100644 --- a/llvm/lib/Analysis/LoopDependenceAnalysis.cpp +++ b/llvm/lib/Analysis/LoopDependenceAnalysis.cpp @@ -144,9 +144,8 @@ LoopDependenceAnalysis::DependenceResult LoopDependenceAnalysis::analyseZIV(const SCEV *A, const SCEV *B, Subscript *S) const { - assert(isZIVPair(A, B)); - const SCEV *diff = SE->getMinusSCEV(A, B); - return diff->isZero() ? Dependent : Independent; + assert(isZIVPair(A, B) && "Attempted to ZIV-test non-ZIV SCEVs!"); + return A == B ? Dependent : Independent; } LoopDependenceAnalysis::DependenceResult |