| Simon Dardis | c38d391 | 2017-06-13 14:11:29 +0000 | [diff] [blame] | 1 | ; RUN: llc -march=mips -mcpu=mips32 -verify-machineinstrs -o /dev/null < %s |
| 2 | ; Confirm that MachineInstr branch simplification preserves |
| 3 | ; register operand flags, such as the <undef> flag. |
| 4 | |
| 5 | define void @ham() { |
| 6 | bb: |
| 7 | %tmp = alloca i32, align 4 |
| 8 | %tmp13 = ptrtoint i32* %tmp to i32 |
| 9 | %tmp70 = icmp eq i32 undef, -1 |
| 10 | br i1 %tmp70, label %bb72, label %bb40 |
| 11 | |
| 12 | bb72: ; preds = %bb72, %bb |
| 13 | br i1 undef, label %bb40, label %bb72 |
| 14 | |
| 15 | bb40: ; preds = %bb72, %bb |
| 16 | %tmp41 = phi i32 [ %tmp13, %bb72 ], [ %tmp13, %bb ] |
| 17 | %tmp55 = inttoptr i32 %tmp41 to i32* |
| 18 | %tmp58 = insertelement <2 x i32*> undef, i32* %tmp55, i32 1 |
| 19 | br label %bb59 |
| 20 | |
| 21 | bb59: ; preds = %bb59, %bb40 |
| 22 | %tmp60 = phi <2 x i32*> [ %tmp61, %bb59 ], [ %tmp58, %bb40 ] |
| 23 | %tmp61 = getelementptr i32, <2 x i32*> %tmp60, <2 x i32> <i32 -1, i32 1> |
| 24 | %tmp62 = extractelement <2 x i32*> %tmp61, i32 1 |
| 25 | br label %bb59 |
| 26 | } |