uint32
allreg(uint32 b, Rgn *r)
{
Var *v;
int i;
v = var + r->varno;
r->regno = 0;
switch(v->etype) {
default:
fatal("unknown etype %d/%E", bitno(b), v->etype);
break;
case TINT8:
case TUINT8:
case TINT16:
case TUINT16:
case TINT32:
case TUINT32:
case TINT:
case TUINT:
case TUINTPTR:
case TBOOL:
case TPTR32:
i = BtoR(~b);
if(i && r->cost >= 0) {
r->regno = i;
return RtoB(i);
}
break;
case TFLOAT32:
case TFLOAT64:
i = BtoF(~b);
if(i && r->cost >= 0) {
r->regno = i+NREG;
return FtoB(i);
}
break;
case TINT64:
case TUINT64:
case TPTR64:
case TINTER:
case TSTRUCT:
case TARRAY:
break;
}
return 0;
}
uint32
reguse(Reg *r, uint32 bb)
{
uint32 b, set;
Adr v;
int c;
set = 0;
v = zprog.from;
while(b = bb & ~(bb-1)) {
v.type = b & 0xFFFF? BtoR(b): BtoF(b);
c = copyu(r->f.prog, &v, nil);
if(c == 1 || c == 2 || c == 4)
set |= b;
bb &= ~b;
}
return set;
}
uint32
allreg(uint32 b, Rgn *r)
{
Var *v;
int i;
v = var + r->varno;
r->regno = 0;
switch(v->etype) {
default:
diag(Z, "unknown etype %d/%d", bitno(b), v->etype);
break;
case TCHAR:
case TUCHAR:
case TSHORT:
case TUSHORT:
case TINT:
case TUINT:
case TLONG:
case TULONG:
case TVLONG:
case TUVLONG:
case TIND:
case TARRAY:
i = BtoR(~b);
if(i && r->cost > 0) {
r->regno = i;
return RtoB(i);
}
break;
case TDOUBLE:
case TFLOAT:
i = BtoF(~b);
if(i && r->cost > 0) {
r->regno = i;
return FtoB(i);
}
break;
}
return 0;
}
uint32
regset(Reg *r, uint32 bb)
{
uint32 b, set;
Adr v;
int c;
set = 0;
v = zprog.from;
while(b = bb & ~(bb-1)) {
v.type = b & 0xFFFF? BtoR(b): BtoF(b);
if(v.type == 0)
fatal("zero v.type for %#ux", b);
c = copyu(r->f.prog, &v, nil);
if(c == 3)
set |= b;
bb &= ~b;
}
return set;
}
uint32_t
regset(Reg *r, uint32_t bb)
{
uint32_t b, set;
Adr v;
int c;
set = 0;
v = zprog.from;
while(b = bb & ~(bb-1)) {
v.type = b & 0xFFFF? BtoR(b): BtoF(b);
if(v.type == 0)
diag(Z, "zero v.type for %#lux", b);
c = copyu(r->prog, &v, A);
if(c == 3)
set |= b;
bb &= ~b;
}
return set;
}
