| Dale Johannesen | c66cdf7 | 2010-06-18 19:00:18 +0000 | [diff] [blame^] | 1 | ; RUN: llc < %s -march=arm -mtriple=arm-apple-darwin | \ |
| 2 | ; RUN: grep cmpne | count 1 |
| 3 | ; RUN: llc < %s -march=arm -mtriple=arm-apple-darwin | \ |
| 4 | ; RUN: grep bhi | count 1 |
| 5 | ; Here, tail call wins over eliminating branches. It is 1 fewer instruction |
| 6 | ; and removes all stack accesses, so seems like a win. |
| 7 | |
| 8 | define void @foo(i32 %X, i32 %Y) { |
| 9 | entry: |
| 10 | %tmp1 = icmp ult i32 %X, 4 ; <i1> [#uses=1] |
| 11 | %tmp4 = icmp eq i32 %Y, 0 ; <i1> [#uses=1] |
| 12 | %tmp7 = or i1 %tmp4, %tmp1 ; <i1> [#uses=1] |
| 13 | br i1 %tmp7, label %cond_true, label %UnifiedReturnBlock |
| 14 | |
| 15 | cond_true: ; preds = %entry |
| 16 | %tmp10 = tail call i32 (...)* @bar( ) ; <i32> [#uses=0] |
| 17 | ret void |
| 18 | |
| 19 | UnifiedReturnBlock: ; preds = %entry |
| 20 | ret void |
| 21 | } |
| 22 | |
| 23 | declare i32 @bar(...) |