diff options
Diffstat (limited to 'test/Transforms/LICM/hoisting.ll')
| -rw-r--r-- | test/Transforms/LICM/hoisting.ll | 28 |
1 files changed, 27 insertions, 1 deletions
diff --git a/test/Transforms/LICM/hoisting.ll b/test/Transforms/LICM/hoisting.ll index 6f28d53..98f9334 100644 --- a/test/Transforms/LICM/hoisting.ll +++ b/test/Transforms/LICM/hoisting.ll @@ -29,7 +29,7 @@ Out: ; preds = %LoopTail } -declare void @foo2(i32) +declare void @foo2(i32) nounwind ;; It is ok and desirable to hoist this potentially trapping instruction. @@ -64,3 +64,29 @@ Out: ; preds = %Loop %C = sub i32 %A, %B ; <i32> [#uses=1] ret i32 %C } + +; CHECK: @test4 +; CHECK: call +; CHECK: sdiv +; CHECK: ret +define i32 @test4(i32 %x, i32 %y) nounwind uwtable ssp { +entry: + br label %for.body + +for.body: ; preds = %entry, %for.body + %i.02 = phi i32 [ 0, %entry ], [ %inc, %for.body ] + %n.01 = phi i32 [ 0, %entry ], [ %add, %for.body ] + call void @foo_may_call_exit(i32 0) + %div = sdiv i32 %x, %y + %add = add nsw i32 %n.01, %div + %inc = add nsw i32 %i.02, 1 + %cmp = icmp slt i32 %inc, 10000 + br i1 %cmp, label %for.body, label %for.end + +for.end: ; preds = %for.body + %n.0.lcssa = phi i32 [ %add, %for.body ] + ret i32 %n.0.lcssa +} + +declare void @foo_may_call_exit(i32) + |