diff options
Diffstat (limited to 'llvm/lib')
| -rw-r--r-- | llvm/lib/Transforms/Scalar/LoopDeletion.cpp | 8 |
1 files changed, 2 insertions, 6 deletions
diff --git a/llvm/lib/Transforms/Scalar/LoopDeletion.cpp b/llvm/lib/Transforms/Scalar/LoopDeletion.cpp index 80b660d975c..62702dacca5 100644 --- a/llvm/lib/Transforms/Scalar/LoopDeletion.cpp +++ b/llvm/lib/Transforms/Scalar/LoopDeletion.cpp @@ -126,18 +126,14 @@ static bool deleteLoopIfDead(Loop *L, DominatorTree &DT, ScalarEvolution &SE, SmallVector<BasicBlock *, 4> ExitingBlocks; L->getExitingBlocks(ExitingBlocks); - SmallVector<BasicBlock *, 4> ExitBlocks; - L->getUniqueExitBlocks(ExitBlocks); - // We require that the loop only have a single exit block. Otherwise, we'd // be in the situation of needing to be able to solve statically which exit // block will be branched to, or trying to preserve the branching logic in // a loop invariant manner. - if (ExitBlocks.size() != 1) + BasicBlock *ExitBlock = L->getUniqueExitBlock(); + if (!ExitBlock) return false; - BasicBlock *ExitBlock = ExitBlocks[0]; - // Finally, we have to check that the loop really is dead. bool Changed = false; if (!isLoopDead(L, SE, ExitingBlocks, ExitBlock, Changed, Preheader)) |
