diff options
Diffstat (limited to 'lisc/emit.c')
| -rw-r--r-- | lisc/emit.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/lisc/emit.c b/lisc/emit.c index 1867097..a1a70c4 100644 --- a/lisc/emit.c +++ b/lisc/emit.c @@ -128,7 +128,12 @@ eins(Ins i, Fn *fn, FILE *f) case OAdd: case OSub: if (req(i.to, i.arg[1])) { - if (!opdesc[i.op].comm) + if (i.op == OSub) { + eop("neg", i.to, R, fn, f); + eop("add", i.arg[0], i.to, fn, f); + break; + } + if (opdesc[i.op].comm != T) diag("emit: unhandled instruction (1)"); i.arg[1] = i.arg[0]; i.arg[0] = i.to; |