diff options
Diffstat (limited to 'src/cmd/5g/reg.c')
| -rw-r--r-- | src/cmd/5g/reg.c | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/src/cmd/5g/reg.c b/src/cmd/5g/reg.c index 4762df506..b78c268df 100644 --- a/src/cmd/5g/reg.c +++ b/src/cmd/5g/reg.c @@ -36,6 +36,11 @@ #define NREGVAR 32 #define REGBITS ((uint32)0xffffffff) +/*c2go enum { + NREGVAR = 32, + REGBITS = 0xffffffff, +}; +*/ void addsplits(void); static Reg* firstr; @@ -194,7 +199,7 @@ regopt(Prog *firstp) proginfo(&info, p); // Avoid making variables for direct-called functions. - if(p->as == ABL && p->to.type == D_EXTERN) + if(p->as == ABL && p->to.name == D_EXTERN) continue; bit = mkvar(r, &p->from); @@ -222,6 +227,10 @@ regopt(Prog *firstp) for(z=0; z<BITS; z++) r->set.b[z] |= bit.b[z]; } + + /* the mod/div runtime routines smash R12 */ + if(p->as == ADIV || p->as == ADIVU || p->as == AMOD || p->as == AMODU) + r->set.b[0] |= RtoB(12); } if(firstr == R) return; @@ -1306,6 +1315,7 @@ void addreg(Adr *a, int rn) { a->sym = nil; + a->node = nil; a->name = D_NONE; a->type = D_REG; a->reg = rn; |