| Juergen Ributzka | 296833c | 2014-06-25 20:06:12 +0000 | [diff] [blame] | 1 | ; RUN: llc < %s -O0 -mtriple=x86_64-apple-darwin10 | FileCheck %s |
| 2 | |
| 3 | ; Test if we do not fold the cmp into select if the instructions are in |
| 4 | ; different basic blocks. |
| 5 | |
| 6 | define i32 @select_cmp_cmov_i32(i32 %a, i32 %b) { |
| 7 | ; CHECK-LABEL: select_cmp_cmov_i32 |
| 8 | ; CHECK-LABEL: continue |
| 9 | ; CHECK-NOT: cmp |
| 10 | %1 = icmp ult i32 %a, %b |
| 11 | br i1 %1, label %continue, label %exit |
| 12 | |
| 13 | continue: |
| 14 | %2 = select i1 %1, i32 %a, i32 %b |
| 15 | ret i32 %2 |
| 16 | |
| 17 | exit: |
| 18 | ret i32 -1 |
| 19 | } |
| 20 | |
| 21 | define float @select_fcmp_oeq_f32(float %a, float %b, float %c, float %d) { |
| 22 | ; CHECK-LABEL: select_fcmp_oeq_f32 |
| 23 | ; CHECK-LABEL: continue |
| 24 | ; CHECK-NOT: cmp |
| 25 | %1 = fcmp oeq float %a, %b |
| 26 | br i1 %1, label %continue, label %exit |
| 27 | |
| 28 | continue: |
| 29 | %2 = select i1 %1, float %c, float %d |
| 30 | ret float %2 |
| 31 | |
| 32 | exit: |
| 33 | ret float -1.0 |
| 34 | } |
| 35 | |
| 36 | define float @select_fcmp_one_f32(float %a, float %b, float %c, float %d) { |
| 37 | ; CHECK-LABEL: select_fcmp_one_f32 |
| 38 | ; CHECK-LABEL: continue |
| 39 | ; CHECK-NOT: ucomi |
| 40 | %1 = fcmp one float %a, %b |
| 41 | br i1 %1, label %continue, label %exit |
| 42 | |
| 43 | continue: |
| 44 | %2 = select i1 %1, float %c, float %d |
| 45 | ret float %2 |
| 46 | |
| 47 | exit: |
| 48 | ret float -1.0 |
| 49 | } |
| 50 | |