| Dan Gohman | 36a0947 | 2009-09-08 23:54:48 +0000 | [diff] [blame] | 1 | ; RUN: llc < %s -mtriple=i386-apple-darwin -O0 |
| Evan Cheng | 5d088fe | 2009-03-23 22:57:19 +0000 | [diff] [blame] | 2 | |
| 3 | define fastcc void @optimize_bit_field() nounwind { |
| 4 | bb4: |
| 5 | %a = load i32* null ; <i32> [#uses=1] |
| 6 | %s = load i32* getelementptr (i32* null, i32 1) ; <i32> [#uses=1] |
| 7 | %z = load i32* getelementptr (i32* null, i32 2) ; <i32> [#uses=1] |
| 8 | %r = bitcast i32 0 to i32 ; <i32> [#uses=1] |
| 9 | %q = trunc i32 %z to i8 ; <i8> [#uses=1] |
| 10 | %b = icmp eq i8 0, %q ; <i1> [#uses=1] |
| 11 | br i1 %b, label %bb73, label %bb72 |
| 12 | |
| 13 | bb72: ; preds = %bb4 |
| 14 | %f = tail call fastcc i32 @gen_lowpart(i32 %r, i32 %a) nounwind ; <i32> [#uses=1] |
| 15 | br label %bb73 |
| 16 | |
| 17 | bb73: ; preds = %bb72, %bb4 |
| 18 | %y = phi i32 [ %f, %bb72 ], [ %s, %bb4 ] ; <i32> [#uses=1] |
| 19 | store i32 %y, i32* getelementptr (i32* null, i32 3) |
| 20 | unreachable |
| 21 | } |
| 22 | |
| 23 | declare fastcc i32 @gen_lowpart(i32, i32) nounwind |