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third time is the charm.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60469 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2008-12-03 07:45:15 +00:00
parent 15efa1a1fd
commit 2973a25dbc
1 changed files with 3 additions and 1 deletions
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4
lib/Transforms/Utils/BasicBlockUtils.cpp
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@ -27,7 +27,9 @@ using namespace llvm;
/// DeleteDeadBlock - Delete the specified block, which must have no
/// predecessors.
void llvm::DeleteDeadBlock(BasicBlock *BB) {
assert(pred_begin(BB) == pred_end(BB) && "Block is not dead!");
assert((pred_begin(BB) == pred_end(BB) ||
// Can delete self loop.
BB->getSinglePredecessor() == BB) && "Block is not dead!");
TerminatorInst *BBTerm = BB->getTerminator();
// Loop through all of our successors and make sure they know that one