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Diffstat (limited to 'lib/Analysis/ScalarEvolution.cpp')
| -rw-r--r-- | lib/Analysis/ScalarEvolution.cpp | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/lib/Analysis/ScalarEvolution.cpp b/lib/Analysis/ScalarEvolution.cpp index 394e0159db..dee7a1f8d9 100644 --- a/lib/Analysis/ScalarEvolution.cpp +++ b/lib/Analysis/ScalarEvolution.cpp @@ -303,6 +303,10 @@ bool SCEVAddRecExpr::isLoopInvariant(const Loop *QueryLoop) const { if (QueryLoop->contains(L)) return false; + // This recurrence is invariant w.r.t. QueryLoop if L contains QueryLoop. + if (L->contains(QueryLoop)) + return true; + // This recurrence is variant w.r.t. QueryLoop if any of its operands // are variant. for (unsigned i = 0, e = getNumOperands(); i != e; ++i) |