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third time is the charm.
author
Chris Lattner
<sabre@nondot.org>
Wed, 3 Dec 2008 07:45:15 +0000
(07:45 +0000)
committer
Chris Lattner
<sabre@nondot.org>
Wed, 3 Dec 2008 07:45:15 +0000
(07:45 +0000)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60469
91177308
-0d34-0410-b5e6-
96231b3b80d8
lib/Transforms/Utils/BasicBlockUtils.cpp
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diff --git
a/lib/Transforms/Utils/BasicBlockUtils.cpp
b/lib/Transforms/Utils/BasicBlockUtils.cpp
index
1a255a4
..
45cfe8f
100644
(file)
--- a/
lib/Transforms/Utils/BasicBlockUtils.cpp
+++ b/
lib/Transforms/Utils/BasicBlockUtils.cpp
@@
-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