dataname(int stg, long memno) #endif { static char varname[64]; register char *s, *t; char buf[16]; if (stg == STGCOMMON) { varname[0] = '2'; sprintf(s = buf, "Q.%ld", memno); } else { varname[0] = stg==STGEQUIV ? '1' : '0'; s = memname(stg, memno); } t = varname + 1; while(*t++ = *s++); *t = 0; return(varname); }
/* * Convert a f77 tree statement to something that looks like a * pcc expression tree. */ NODE * putx(bigptr q) { struct bigblock *x1; NODE *p = NULL; /* XXX */ int opc; int type, k; #ifdef PCC_DEBUG if (tflag) { printf("putx %p\n", q); fprint(q, 0); } #endif switch(q->tag) { case TERROR: ckfree(q); break; case TCONST: switch(type = q->vtype) { case TYLOGICAL: type = tyint; case TYLONG: case TYSHORT: p = mklnode(ICON, q->b_const.fconst.ci, 0, types2[type]); ckfree(q); break; case TYADDR: p = mklnode(ICON, 0, 0, types2[type]); p->n_name = copys(memname(STGCONST, (int)q->b_const.fconst.ci)); ckfree(q); break; default: p = putx(putconst(q)); break; } break; case TEXPR: switch(opc = q->b_expr.opcode) { case OPCALL: case OPCCALL: if( ISCOMPLEX(q->vtype) ) p = putcxop(q); else { putcall(q); p = callval; } break; case OPMIN: case OPMAX: p = putmnmx(q); break; case OPASSIGN: if (ISCOMPLEX(q->b_expr.leftp->vtype) || ISCOMPLEX(q->b_expr.rightp->vtype)) { frexpr(putcxeq(q)); } else if (ISCHAR(q)) p = putcheq(q); else goto putopp; break; case OPEQ: case OPNE: if (ISCOMPLEX(q->b_expr.leftp->vtype) || ISCOMPLEX(q->b_expr.rightp->vtype) ) { p = putcxcmp(q); break; } case OPLT: case OPLE: case OPGT: case OPGE: if(ISCHAR(q->b_expr.leftp)) p = putchcmp(q); else goto putopp; break; case OPPOWER: p = putpower(q); break; case OPSTAR: /* m * (2**k) -> m<<k */ if (XINT(q->b_expr.leftp->vtype) && ISICON(q->b_expr.rightp) && ((k = flog2(q->b_expr.rightp->b_const.fconst.ci))>0) ) { q->b_expr.opcode = OPLSHIFT; frexpr(q->b_expr.rightp); q->b_expr.rightp = MKICON(k); goto putopp; } case OPMOD: goto putopp; case OPPLUS: case OPMINUS: case OPSLASH: case OPNEG: if( ISCOMPLEX(q->vtype) ) p = putcxop(q); else goto putopp; break; case OPCONV: if( ISCOMPLEX(q->vtype) ) p = putcxop(q); else if (ISCOMPLEX(q->b_expr.leftp->vtype)) { p = putx(mkconv(q->vtype, realpart(putcx1(q->b_expr.leftp)))); ckfree(q); } else goto putopp; break; case OPAND: /* Create logical AND */ x1 = fmktemp(TYLOGICAL, NULL); putexpr(mkexpr(OPASSIGN, cpexpr(x1), mklogcon(0))); k = newlabel(); putif(q->b_expr.leftp, k); putif(q->b_expr.rightp, k); putexpr(mkexpr(OPASSIGN, cpexpr(x1), mklogcon(1))); putlabel(k); p = putx(x1); break; case OPNOT: /* Logical NOT */ x1 = fmktemp(TYLOGICAL, NULL); putexpr(mkexpr(OPASSIGN, cpexpr(x1), mklogcon(1))); k = newlabel(); putif(q->b_expr.leftp, k); putexpr(mkexpr(OPASSIGN, cpexpr(x1), mklogcon(0))); putlabel(k); p = putx(x1); break; case OPOR: /* Create logical OR */ x1 = fmktemp(TYLOGICAL, NULL); putexpr(mkexpr(OPASSIGN, cpexpr(x1), mklogcon(1))); k = newlabel(); putif(mkexpr(OPEQ, q->b_expr.leftp, mklogcon(0)), k); putif(mkexpr(OPEQ, q->b_expr.rightp, mklogcon(0)), k); putexpr(mkexpr(OPASSIGN, cpexpr(x1), mklogcon(0))); putlabel(k); p = putx(x1); break; case OPCOMMA: for (x1 = q; x1->b_expr.opcode == OPCOMMA; x1 = x1->b_expr.leftp) putexpr(x1->b_expr.rightp); p = putx(x1); break; case OPEQV: case OPNEQV: case OPADDR: case OPBITOR: case OPBITAND: case OPBITXOR: case OPBITNOT: case OPLSHIFT: case OPRSHIFT: putopp: p = putop(q); break; default: fatal1("putx: invalid opcode %d", opc); } break; case TADDR: p = putaddr(q, YES); break; default: fatal1("putx: impossible tag %d", q->tag); } return p; }