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Don't generate branch to entry block.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36917 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Dale Johannesen 2007-05-08 01:01:04 +00:00
parent 356e72c4f1
commit 6603a1bff0
1 changed files with 3 additions and 1 deletions
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4
lib/Transforms/Scalar/CodeGenPrepare.cpp
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@ -280,7 +280,9 @@ static void SplitEdgeNicely(TerminatorInst *TI, unsigned SuccNum, Pass *P) {
BranchInst *PredBr = dyn_cast<BranchInst>(Pred->getTerminator());
if (!PredBr || !PredBr->isUnconditional() ||
// Must be empty other than the branch.
&Pred->front() != PredBr)
&Pred->front() != PredBr ||
// Cannot be the entry block; its label does not get emitted.
Pred == &(Dest->getParent()->getEntryBlock()))
continue;
// Finally, since we know that Dest has phi nodes in it, we have to make