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new blit instruction

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This commit is contained in:
Quentin Carbonneaux 2022-12-10 23:16:21 +01:00
parent 15e25a61b3
commit 26c1c30b7d
16 changed files with 398 additions and 103 deletions
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13
amd64/sysv.c
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@ -127,7 +127,8 @@ selret(Blk *b, Fn *fn)
if (aret.inmem) {
assert(rtype(fn->retr) == RTmp);
emit(Ocopy, Kl, TMP(RAX), fn->retr, R);
blit0(fn->retr, r0, aret.type->size, fn);
emit(Oblit1, 0, R, INT(aret.type->size), R);
emit(Oblit0, 0, R, r0, fn->retr);
ca = 1;
} else {
ca = retr(reg, &aret);
@ -410,15 +411,15 @@ selcall(Fn *fn, Ins *i0, Ins *i1, RAlloc **rap)
for (i=i0, a=ac, off=0; i<i1; i++, a++) {
if (i->op >= Oarge || !a->inmem)
continue;
r1 = newtmp("abi", Kl, fn);
if (i->op == Oargc) {
if (a->align == 4)
off += off & 15;
blit(r, off, i->arg[1], 0, a->type->size, fn);
} else {
r1 = newtmp("abi", Kl, fn);
emit(Oblit1, 0, R, INT(a->type->size), R);
emit(Oblit0, 0, R, i->arg[1], r1);
} else
emit(Ostorel, 0, R, i->arg[0], r1);
emit(Oadd, Kl, r1, r, getcon(off, fn));
}
emit(Oadd, Kl, r1, r, getcon(off, fn));
off += a->size;
}
emit(Osalloc, Kl, r, getcon(stk, fn), R);