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Fix floating-point divide by zero, in a case where the value was not going to be used anyway.

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llvm-svn: 162518
This commit is contained in:
Richard Smith 2012-08-24 00:31:45 +00:00
parent 3739d6ca99
commit ed01259313
1 changed files with 1 additions and 1 deletions
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lib/Analysis/ProfileEstimatorPass.cpp
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@ -286,7 +286,7 @@ void ProfileEstimatorPass::recurseBasicBlock(BasicBlock *BB) {
}
}
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();