| 1 | .data 16 |
| 2 | ok: |
| 3 | .c "ok" |
| 4 | |
| 5 | .code |
| 6 | jmpi main |
| 7 | |
| 8 | /* |
| 9 | * very simple test on purpose because otherwise it would not trigger |
| 10 | * the bug where the retr %r0 or retr_d %f0 would be omitted because |
| 11 | * the argument was already the return register, but the register end |
| 12 | * clobbered by another instruction, like the div*, and the wrong |
| 13 | * value returned because the retr* was removed and this way, lost |
| 14 | * information that the register was live at function exit. |
| 15 | */ |
| 16 | |
| 17 | check_r0: |
| 18 | prolog |
| 19 | movi %r0 1 |
| 20 | movi %r2 10 |
| 21 | // on x86 this changes %rax on other arches could use %r0 as temporary |
| 22 | divi %r1 %r2 3 |
| 23 | // %r0 must still be 1 |
| 24 | retr %r0 |
| 25 | epilog |
| 26 | |
| 27 | check_f0: |
| 28 | prolog |
| 29 | movi_d %f0 0.5 |
| 30 | movi_d %f2 10 |
| 31 | divi_d %f1 %f2 3 |
| 32 | retr_d %f0 |
| 33 | epilog |
| 34 | |
| 35 | main: |
| 36 | prolog |
| 37 | calli check_r0 |
| 38 | retval %r1 |
| 39 | beqi r0_ok %r1 1 |
| 40 | calli @abort |
| 41 | r0_ok: |
| 42 | calli check_f0 |
| 43 | retval_d %f1 |
| 44 | beqi_d f0_ok %f1 0.5 |
| 45 | calli @abort |
| 46 | f0_ok: |
| 47 | prepare |
| 48 | pushargi ok |
| 49 | finishi @puts |
| 50 | ret |
| 51 | epilog |