| ; RUN: llc < %s -mtriple=i386-apple-darwin -O0 |
| |
| define fastcc void @optimize_bit_field() nounwind { |
| bb4: |
| %a = load i32* null ; <i32> [#uses=1] |
| %s = load i32* getelementptr (i32* null, i32 1) ; <i32> [#uses=1] |
| %z = load i32* getelementptr (i32* null, i32 2) ; <i32> [#uses=1] |
| %r = bitcast i32 0 to i32 ; <i32> [#uses=1] |
| %q = trunc i32 %z to i8 ; <i8> [#uses=1] |
| %b = icmp eq i8 0, %q ; <i1> [#uses=1] |
| br i1 %b, label %bb73, label %bb72 |
| |
| bb72: ; preds = %bb4 |
| %f = tail call fastcc i32 @gen_lowpart(i32 %r, i32 %a) nounwind ; <i32> [#uses=1] |
| br label %bb73 |
| |
| bb73: ; preds = %bb72, %bb4 |
| %y = phi i32 [ %f, %bb72 ], [ %s, %bb4 ] ; <i32> [#uses=1] |
| store i32 %y, i32* getelementptr (i32* null, i32 3) |
| unreachable |
| } |
| |
| declare fastcc i32 @gen_lowpart(i32, i32) nounwind |
