diff options
Diffstat (limited to 'lisc/isel.c')
| -rw-r--r-- | lisc/isel.c | 37 |
1 files changed, 19 insertions, 18 deletions
diff --git a/lisc/isel.c b/lisc/isel.c index f933c92..4fad703 100644 --- a/lisc/isel.c +++ b/lisc/isel.c @@ -25,17 +25,18 @@ emit(short op, Ref to, Ref arg0, Ref arg1) } static int -newsym(int type, Fn *fn) +newtmp(int type, Fn *fn) { - int s; + static int n; + int t; - s = fn->nsym++; - fn->sym = realloc(fn->sym, fn->nsym * sizeof(Sym)); - if (!fn->sym) + t = fn->ntmp++; + fn->tmp = realloc(fn->tmp, fn->ntmp * sizeof fn->tmp[0]); + if (!fn->tmp) diag("isel: out of memory"); - fn->sym[s] = (Sym){.type = type}; - sprintf(fn->sym[s].name, "isel%d", s); - return s; + fn->tmp[t] = (Tmp){.type = type}; + sprintf(fn->tmp[t].name, "isel%d", ++n); + return t; } static void @@ -46,27 +47,27 @@ sel(Ins *i, Fn *fn) switch (i->op) { case ODiv: - r0 = SYM(RAX); - r1 = SYM(RDX); + r0 = REG(RAX); + r1 = REG(RDX); if (0) { case ORem: - r0 = SYM(RDX); - r1 = SYM(RAX); + r0 = REG(RDX); + r1 = REG(RAX); } emit(OCopy, i->to, r0, R); emit(OCopy, R, r1, R); - if (rtype(i->arg[1]) == RCons) { + if (rtype(i->arg[1]) == RCon) { /* immediates not allowed for * divisions in x86 */ - t = newsym(fn->sym[i->to.val].type, fn); - r0 = SYM(t); + t = newtmp(fn->tmp[i->to.val].type, fn); + r0 = TMP(t); } else r0 = i->arg[1]; emit(OXDiv, R, r0, R); - emit(OSign, SYM(RDX), SYM(RAX), R); - emit(OCopy, SYM(RAX), i->arg[0], R); - if (rtype(i->arg[1]) == RCons) + emit(OSign, REG(RDX), REG(RAX), R); + emit(OCopy, REG(RAX), i->arg[0], R); + if (rtype(i->arg[1]) == RCon) emit(OCopy, r0, i->arg[1], R); break; case OAdd: |