diff options
| -rw-r--r-- | lib/Transforms/Scalar/LoopUnswitch.cpp | 1 | ||||
| -rw-r--r-- | test/Transforms/LoopUnswitch/5373.ll | 24 |
2 files changed, 24 insertions, 1 deletions
diff --git a/lib/Transforms/Scalar/LoopUnswitch.cpp b/lib/Transforms/Scalar/LoopUnswitch.cpp index 38d267aa6b..382e2612cb 100644 --- a/lib/Transforms/Scalar/LoopUnswitch.cpp +++ b/lib/Transforms/Scalar/LoopUnswitch.cpp @@ -296,7 +296,6 @@ static bool isTrivialLoopExitBlockHelper(Loop *L, BasicBlock *BB, // first exit. if (ExitBB != 0) return false; ExitBB = BB; - return true; } // Otherwise, this is an unvisited intra-loop node. Check all successors. diff --git a/test/Transforms/LoopUnswitch/5373.ll b/test/Transforms/LoopUnswitch/5373.ll new file mode 100644 index 0000000000..77b78350c5 --- /dev/null +++ b/test/Transforms/LoopUnswitch/5373.ll @@ -0,0 +1,24 @@ +; RUN: opt < %s -loop-unswitch -stats -disable-output |& grep "3 loop-unswitch - Number of branches unswitched" + +define noalias i32* @func_16(i32** %p_18, i32* %p_20) noreturn nounwind ssp { +entry: + %lnot = icmp eq i32** %p_18, null ; <i1> [#uses=1] + %lnot6 = icmp eq i32* %p_20, null ; <i1> [#uses=1] + br label %for.body + +for.body: ; preds = %cond.end, %entry + br i1 %lnot, label %cond.end, label %cond.true + +cond.true: ; preds = %for.body + tail call void @f() + unreachable + +cond.end: ; preds = %for.body + br i1 %lnot6, label %for.body, label %cond.true10 + +cond.true10: ; preds = %cond.end + tail call void @f() + unreachable +} + +declare void @f() noreturn |