| James Molloy | ee0d992 | 2015-07-10 12:52:00 +0000 | [diff] [blame] | 1 | ; RUN: llvm-as < %s | llvm-dis > %t0 |
| 2 | ; RUN: opt -S < %s > %t1 |
| 3 | ; RUN: diff %t0 %t1 |
| 4 | ; RUN: FileCheck < %t1 %s |
| 5 | |
| Michael Berg | 16388e7 | 2018-04-26 18:17:58 +0000 | [diff] [blame] | 6 | ; Make sure fast math flags on fcmp instructions are serialized/deserialized properly. |
| James Molloy | ee0d992 | 2015-07-10 12:52:00 +0000 | [diff] [blame] | 7 | |
| 8 | define i1 @foo(float %a, float %b, double %c, double %d) { |
| 9 | ; CHECK: %plain = fcmp ueq float %a, %b |
| 10 | %plain = fcmp ueq float %a, %b |
| 11 | ; CHECK: %fast = fcmp fast olt float %a, %b |
| 12 | %fast = fcmp fast olt float %a, %b |
| 13 | ; CHECK: %nsz = fcmp nsz uge float %a, %b |
| 14 | %nsz = fcmp nsz uge float %a, %b |
| 15 | ; CHECK: %nnan = fcmp nnan nsz oge double %c, %d |
| 16 | %nnan = fcmp nnan nsz oge double %c, %d |
| 17 | |
| 18 | %dce1 = or i1 %plain, %fast |
| 19 | %dce2 = or i1 %dce1, %nsz |
| 20 | %dce3 = or i1 %dce2, %nnan |
| 21 | |
| 22 | ret i1 %dce3 |
| 23 | } |