Fix floating-point divide by zero, in a case where the value was not going to be used anyway.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162518 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Analysis/ProfileEstimatorPass.cpp b/lib/Analysis/ProfileEstimatorPass.cpp
index 63468f8..12b59e0 100644
--- a/lib/Analysis/ProfileEstimatorPass.cpp
+++ b/lib/Analysis/ProfileEstimatorPass.cpp
@@ -286,7 +286,7 @@
}
}
- double fraction = floor(BBWeight/Edges.size());
+ double fraction = Edges.size() ? floor(BBWeight/Edges.size()) : 0.0;
// Finally we know what flow is still not leaving the block, distribute this
// flow onto the empty edges.
for (SmallVector<Edge, 8>::iterator ei = Edges.begin(), ee = Edges.end();