diff options
Diffstat (limited to 'llvm/test/Transforms/LoopIdiom/basic.ll')
| -rw-r--r-- | llvm/test/Transforms/LoopIdiom/basic.ll | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/llvm/test/Transforms/LoopIdiom/basic.ll b/llvm/test/Transforms/LoopIdiom/basic.ll index 3fa6eb900b4..e8e0f38004c 100644 --- a/llvm/test/Transforms/LoopIdiom/basic.ll +++ b/llvm/test/Transforms/LoopIdiom/basic.ll @@ -188,4 +188,22 @@ for.end: ; preds = %for.body, %entry ; CHECK-NOT: store } +; This is a loop should not be transformed, it only executes one iteration. +define void @test8(i64* %Ptr, i64 %Size) nounwind ssp { +bb.nph: ; preds = %entry + br label %for.body + +for.body: ; preds = %bb.nph, %for.body + %indvar = phi i64 [ 0, %bb.nph ], [ %indvar.next, %for.body ] + %PI = getelementptr i64* %Ptr, i64 %indvar + store i64 0, i64 *%PI + %indvar.next = add i64 %indvar, 1 + %exitcond = icmp eq i64 %indvar.next, 1 + br i1 %exitcond, label %for.end, label %for.body + +for.end: ; preds = %for.body, %entry + ret void +; CHECK: @test8 +; CHECK: store i64 0, i64* %PI +} |
