diff options
Diffstat (limited to 'test/Transforms/LoopDeletion/multiple-exits.ll')
| -rw-r--r-- | test/Transforms/LoopDeletion/multiple-exits.ll | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/test/Transforms/LoopDeletion/multiple-exits.ll b/test/Transforms/LoopDeletion/multiple-exits.ll new file mode 100644 index 0000000..6af413b --- /dev/null +++ b/test/Transforms/LoopDeletion/multiple-exits.ll @@ -0,0 +1,26 @@ +; RUN: opt < %s -loop-deletion -S | FileCheck %s + +; Checks whether dead loops with multiple exits can be eliminated + +; CHECK: entry: +; CHECK-NEXT: br label %return + +; CHECK: return: +; CHECK-NEXT: ret void + +define void @foo(i64 %n, i64 %m) nounwind { +entry: + br label %bb + +bb: + %x.0 = phi i64 [ 0, %entry ], [ %t0, %bb2 ] + %t0 = add i64 %x.0, 1 + %t1 = icmp slt i64 %x.0, %n + br i1 %t1, label %bb2, label %return +bb2: + %t2 = icmp slt i64 %x.0, %m + br i1 %t1, label %bb, label %return + +return: + ret void +} |
