diff options
Diffstat (limited to 'sysv.c')
| -rw-r--r-- | sysv.c | 20 |
1 files changed, 9 insertions, 11 deletions
diff --git a/sysv.c b/sysv.c index e0571e9..404c0ac 100644 --- a/sysv.c +++ b/sysv.c @@ -37,7 +37,7 @@ aclass(AClass *a, Typ *t) a->size = sz; a->align = t->align; - if (t->dark || sz > 16) { + if (t->dark || sz > 16 || sz == 0) { /* large or unaligned structures are * required to be passed in memory */ @@ -265,7 +265,7 @@ selcall(Fn *fn, Ins *i0, Ins *i1, RAlloc **rap) AClass *ac, *a, aret; int ca, ni, ns, al; uint stk, off; - Ref r, r1, r2, reg[2], regcp[2]; + Ref r, r1, r2, reg[2]; RAlloc *ra; ac = alloc((i1-i0) * sizeof ac[0]); @@ -299,18 +299,16 @@ selcall(Fn *fn, Ins *i0, Ins *i1, RAlloc **rap) } else { if (aret.size > 8) { r = newtmp("abi", Kl, fn); - regcp[1] = newtmp("abi", aret.cls[1], fn); - emit(OStorel, 0, R, regcp[1], r); + aret.ref[1] = newtmp("abi", aret.cls[1], fn); + emit(OStorel, 0, R, aret.ref[1], r); emit(OAdd, Kl, r, i1->to, getcon(8, fn)); - ca += 1 << (2 * KBASE(aret.cls[1])); } - regcp[0] = newtmp("abi", aret.cls[0], fn); - emit(OStorel, 0, R, regcp[0], i1->to); - ca += 1 << (2 * KBASE(aret.cls[0])); - retr(reg, &aret); + aret.ref[0] = newtmp("abi", aret.cls[0], fn); + emit(OStorel, 0, R, aret.ref[0], i1->to); + ca += retr(reg, &aret); if (aret.size > 8) - emit(OCopy, aret.cls[1], regcp[1], reg[1], R); - emit(OCopy, aret.cls[0], regcp[0], reg[0], R); + emit(OCopy, aret.cls[1], aret.ref[1], reg[1], R); + emit(OCopy, aret.cls[0], aret.ref[0], reg[0], R); r1 = i1->to; } /* allocate return pad */ |