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intr.c
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/****************************************************************
Copyright 1990, 1992, 1994-6, 1998 by AT&T, Lucent Technologies and Bellcore.
Permission to use, copy, modify, and distribute this software
and its documentation for any purpose and without fee is hereby
granted, provided that the above copyright notice appear in all
copies and that both that the copyright notice and this
permission notice and warranty disclaimer appear in supporting
documentation, and that the names of AT&T, Bell Laboratories,
Lucent or Bellcore or any of their entities not be used in
advertising or publicity pertaining to distribution of the
software without specific, written prior permission.
AT&T, Lucent and Bellcore disclaim all warranties with regard to
this software, including all implied warranties of
merchantability and fitness. In no event shall AT&T, Lucent or
Bellcore be liable for any special, indirect or consequential
damages or any damages whatsoever resulting from loss of use,
data or profits, whether in an action of contract, negligence or
other tortious action, arising out of or in connection with the
use or performance of this software.
****************************************************************/
#include "defs.h"
#include "names.h"
union
{
int ijunk;
struct Intrpacked bits;
} packed;
struct Intrbits
{
char intrgroup /* :3 */;
char intrstuff /* result type or number of generics */;
char intrno /* :7 */;
char dblcmplx;
char dblintrno; /* for -r8 */
char extflag; /* for -cd, -i90 */
};
/* List of all intrinsic functions. */
LOCAL struct Intrblock
{
char intrfname[8];
struct Intrbits intrval;
} intrtab[ ] =
{
"int", { INTRCONV, TYLONG },
"real", { INTRCONV, TYREAL, 1 },
/* 1 ==> real(TYDCOMPLEX) yields TYDREAL */
"dble", { INTRCONV, TYDREAL },
"dreal", { INTRCONV, TYDREAL, 0, 0, 0, 1 },
"cmplx", { INTRCONV, TYCOMPLEX },
"dcmplx", { INTRCONV, TYDCOMPLEX, 0, 1 },
"ifix", { INTRCONV, TYLONG },
"idint", { INTRCONV, TYLONG },
"float", { INTRCONV, TYREAL },
"dfloat", { INTRCONV, TYDREAL },
"sngl", { INTRCONV, TYREAL },
"ichar", { INTRCONV, TYLONG },
"iachar", { INTRCONV, TYLONG },
"char", { INTRCONV, TYCHAR },
"achar", { INTRCONV, TYCHAR },
/* any MAX or MIN can be used with any types; the compiler will cast them
correctly. So rules against bad syntax in these expressions are not
enforced */
"max", { INTRMAX, TYUNKNOWN },
"max0", { INTRMAX, TYLONG },
"amax0", { INTRMAX, TYREAL },
"max1", { INTRMAX, TYLONG },
"amax1", { INTRMAX, TYREAL },
"dmax1", { INTRMAX, TYDREAL },
"and", { INTRBOOL, TYUNKNOWN, OPBITAND },
"or", { INTRBOOL, TYUNKNOWN, OPBITOR },
"xor", { INTRBOOL, TYUNKNOWN, OPBITXOR },
"not", { INTRBOOL, TYUNKNOWN, OPBITNOT },
"lshift", { INTRBOOL, TYUNKNOWN, OPLSHIFT },
"rshift", { INTRBOOL, TYUNKNOWN, OPRSHIFT },
"min", { INTRMIN, TYUNKNOWN },
"min0", { INTRMIN, TYLONG },
"amin0", { INTRMIN, TYREAL },
"min1", { INTRMIN, TYLONG },
"amin1", { INTRMIN, TYREAL },
"dmin1", { INTRMIN, TYDREAL },
"aint", { INTRGEN, 2, 0 },
"dint", { INTRSPEC, TYDREAL, 1 },
"anint", { INTRGEN, 2, 2 },
"dnint", { INTRSPEC, TYDREAL, 3 },
"nint", { INTRGEN, 4, 4 },
"idnint", { INTRGEN, 2, 6 },
"abs", { INTRGEN, 6, 8 },
"iabs", { INTRGEN, 2, 9 },
"dabs", { INTRSPEC, TYDREAL, 11 },
"cabs", { INTRSPEC, TYREAL, 12, 0, 13 },
"zabs", { INTRSPEC, TYDREAL, 13, 1 },
"mod", { INTRGEN, 4, 14 },
"amod", { INTRSPEC, TYREAL, 16, 0, 17 },
"dmod", { INTRSPEC, TYDREAL, 17 },
"sign", { INTRGEN, 4, 18 },
"isign", { INTRGEN, 2, 19 },
"dsign", { INTRSPEC, TYDREAL, 21 },
"dim", { INTRGEN, 4, 22 },
"idim", { INTRGEN, 2, 23 },
"ddim", { INTRSPEC, TYDREAL, 25 },
"dprod", { INTRSPEC, TYDREAL, 26 },
"len", { INTRSPEC, TYLONG, 27 },
"index", { INTRSPEC, TYLONG, 29 },
"imag", { INTRGEN, 2, 31 },
"aimag", { INTRSPEC, TYREAL, 31, 0, 32 },
"dimag", { INTRSPEC, TYDREAL, 32 },
"conjg", { INTRGEN, 2, 33 },
"dconjg", { INTRSPEC, TYDCOMPLEX, 34, 1 },
"sqrt", { INTRGEN, 4, 35 },
"dsqrt", { INTRSPEC, TYDREAL, 36 },
"csqrt", { INTRSPEC, TYCOMPLEX, 37, 0, 38 },
"zsqrt", { INTRSPEC, TYDCOMPLEX, 38, 1 },
"exp", { INTRGEN, 4, 39 },
"dexp", { INTRSPEC, TYDREAL, 40 },
"cexp", { INTRSPEC, TYCOMPLEX, 41, 0, 42 },
"zexp", { INTRSPEC, TYDCOMPLEX, 42, 1 },
"log", { INTRGEN, 4, 43 },
"alog", { INTRSPEC, TYREAL, 43, 0, 44 },
"dlog", { INTRSPEC, TYDREAL, 44 },
"clog", { INTRSPEC, TYCOMPLEX, 45, 0, 46 },
"zlog", { INTRSPEC, TYDCOMPLEX, 46, 1 },
"log10", { INTRGEN, 2, 47 },
"alog10", { INTRSPEC, TYREAL, 47, 0, 48 },
"dlog10", { INTRSPEC, TYDREAL, 48 },
"sin", { INTRGEN, 4, 49 },
"dsin", { INTRSPEC, TYDREAL, 50 },
"csin", { INTRSPEC, TYCOMPLEX, 51, 0, 52 },
"zsin", { INTRSPEC, TYDCOMPLEX, 52, 1 },
"cos", { INTRGEN, 4, 53 },
"dcos", { INTRSPEC, TYDREAL, 54 },
"ccos", { INTRSPEC, TYCOMPLEX, 55, 0, 56 },
"zcos", { INTRSPEC, TYDCOMPLEX, 56, 1 },
"tan", { INTRGEN, 2, 57 },
"dtan", { INTRSPEC, TYDREAL, 58 },
"asin", { INTRGEN, 2, 59 },
"dasin", { INTRSPEC, TYDREAL, 60 },
"acos", { INTRGEN, 2, 61 },
"dacos", { INTRSPEC, TYDREAL, 62 },
"atan", { INTRGEN, 2, 63 },
"datan", { INTRSPEC, TYDREAL, 64 },
"atan2", { INTRGEN, 2, 65 },
"datan2", { INTRSPEC, TYDREAL, 66 },
"sinh", { INTRGEN, 2, 67 },
"dsinh", { INTRSPEC, TYDREAL, 68 },
"cosh", { INTRGEN, 2, 69 },
"dcosh", { INTRSPEC, TYDREAL, 70 },
"tanh", { INTRGEN, 2, 71 },
"dtanh", { INTRSPEC, TYDREAL, 72 },
"lge", { INTRSPEC, TYLOGICAL, 73},
"lgt", { INTRSPEC, TYLOGICAL, 75},
"lle", { INTRSPEC, TYLOGICAL, 77},
"llt", { INTRSPEC, TYLOGICAL, 79},
#if 0
"epbase", { INTRCNST, 4, 0 },
"epprec", { INTRCNST, 4, 4 },
"epemin", { INTRCNST, 2, 8 },
"epemax", { INTRCNST, 2, 10 },
"eptiny", { INTRCNST, 2, 12 },
"ephuge", { INTRCNST, 4, 14 },
"epmrsp", { INTRCNST, 2, 18 },
#endif
"fpexpn", { INTRGEN, 4, 81 },
"fpabsp", { INTRGEN, 2, 85 },
"fprrsp", { INTRGEN, 2, 87 },
"fpfrac", { INTRGEN, 2, 89 },
"fpmake", { INTRGEN, 2, 91 },
"fpscal", { INTRGEN, 2, 93 },
"cdabs", { INTRSPEC, TYDREAL, 13, 1, 0, 1 },
"cdsqrt", { INTRSPEC, TYDCOMPLEX, 38, 1, 0, 1 },
"cdexp", { INTRSPEC, TYDCOMPLEX, 42, 1, 0, 1 },
"cdlog", { INTRSPEC, TYDCOMPLEX, 46, 1, 0, 1 },
"cdsin", { INTRSPEC, TYDCOMPLEX, 52, 1, 0, 1 },
"cdcos", { INTRSPEC, TYDCOMPLEX, 56, 1, 0, 1 },
"iand", { INTRBOOL, TYUNKNOWN, OPBITAND, 0, 0, 2 },
"ior", { INTRBOOL, TYUNKNOWN, OPBITOR, 0, 0, 2 },
"ieor", { INTRBOOL, TYUNKNOWN, OPBITXOR, 0, 0, 2 },
"btest", { INTRBGEN, TYLOGICAL, OPBITTEST,0, 0, 2 },
"ibclr", { INTRBGEN, TYUNKNOWN, OPBITCLR, 0, 0, 2 },
"ibset", { INTRBGEN, TYUNKNOWN, OPBITSET, 0, 0, 2 },
"ibits", { INTRBGEN, TYUNKNOWN, OPBITBITS,0, 0, 2 },
"ishft", { INTRBGEN, TYUNKNOWN, OPBITSH, 0, 0, 2 },
"ishftc", { INTRBGEN, TYUNKNOWN, OPBITSHC, 0, 0, 2 },
"" };
LOCAL struct Specblock
{
char atype; /* Argument type; every arg must have
this type */
char rtype; /* Result type */
char nargs; /* Number of arguments */
char spxname[8]; /* Name of the function in Fortran */
char othername; /* index into callbyvalue table */
} spectab[ ] =
{
{ TYREAL,TYREAL,1,"r_int" },
{ TYDREAL,TYDREAL,1,"d_int" },
{ TYREAL,TYREAL,1,"r_nint" },
{ TYDREAL,TYDREAL,1,"d_nint" },
{ TYREAL,TYSHORT,1,"h_nint" },
{ TYREAL,TYLONG,1,"i_nint" },
{ TYDREAL,TYSHORT,1,"h_dnnt" },
{ TYDREAL,TYLONG,1,"i_dnnt" },
{ TYREAL,TYREAL,1,"r_abs" },
{ TYSHORT,TYSHORT,1,"h_abs" },
{ TYLONG,TYLONG,1,"i_abs" },
{ TYDREAL,TYDREAL,1,"d_abs" },
{ TYCOMPLEX,TYREAL,1,"c_abs" },
{ TYDCOMPLEX,TYDREAL,1,"z_abs" },
{ TYSHORT,TYSHORT,2,"h_mod" },
{ TYLONG,TYLONG,2,"i_mod" },
{ TYREAL,TYREAL,2,"r_mod" },
{ TYDREAL,TYDREAL,2,"d_mod" },
{ TYREAL,TYREAL,2,"r_sign" },
{ TYSHORT,TYSHORT,2,"h_sign" },
{ TYLONG,TYLONG,2,"i_sign" },
{ TYDREAL,TYDREAL,2,"d_sign" },
{ TYREAL,TYREAL,2,"r_dim" },
{ TYSHORT,TYSHORT,2,"h_dim" },
{ TYLONG,TYLONG,2,"i_dim" },
{ TYDREAL,TYDREAL,2,"d_dim" },
{ TYREAL,TYDREAL,2,"d_prod" },
{ TYCHAR,TYSHORT,1,"h_len" },
{ TYCHAR,TYLONG,1,"i_len" },
{ TYCHAR,TYSHORT,2,"h_indx" },
{ TYCHAR,TYLONG,2,"i_indx" },
{ TYCOMPLEX,TYREAL,1,"r_imag" },
{ TYDCOMPLEX,TYDREAL,1,"d_imag" },
{ TYCOMPLEX,TYCOMPLEX,1,"r_cnjg" },
{ TYDCOMPLEX,TYDCOMPLEX,1,"d_cnjg" },
{ TYREAL,TYREAL,1,"r_sqrt", 1 },
{ TYDREAL,TYDREAL,1,"d_sqrt", 1 },
{ TYCOMPLEX,TYCOMPLEX,1,"c_sqrt" },
{ TYDCOMPLEX,TYDCOMPLEX,1,"z_sqrt" },
{ TYREAL,TYREAL,1,"r_exp", 2 },
{ TYDREAL,TYDREAL,1,"d_exp", 2 },
{ TYCOMPLEX,TYCOMPLEX,1,"c_exp" },
{ TYDCOMPLEX,TYDCOMPLEX,1,"z_exp" },
{ TYREAL,TYREAL,1,"r_log", 3 },
{ TYDREAL,TYDREAL,1,"d_log", 3 },
{ TYCOMPLEX,TYCOMPLEX,1,"c_log" },
{ TYDCOMPLEX,TYDCOMPLEX,1,"z_log" },
{ TYREAL,TYREAL,1,"r_lg10" },
{ TYDREAL,TYDREAL,1,"d_lg10" },
{ TYREAL,TYREAL,1,"r_sin", 4 },
{ TYDREAL,TYDREAL,1,"d_sin", 4 },
{ TYCOMPLEX,TYCOMPLEX,1,"c_sin" },
{ TYDCOMPLEX,TYDCOMPLEX,1,"z_sin" },
{ TYREAL,TYREAL,1,"r_cos", 5 },
{ TYDREAL,TYDREAL,1,"d_cos", 5 },
{ TYCOMPLEX,TYCOMPLEX,1,"c_cos" },
{ TYDCOMPLEX,TYDCOMPLEX,1,"z_cos" },
{ TYREAL,TYREAL,1,"r_tan", 6 },
{ TYDREAL,TYDREAL,1,"d_tan", 6 },
{ TYREAL,TYREAL,1,"r_asin", 7 },
{ TYDREAL,TYDREAL,1,"d_asin", 7 },
{ TYREAL,TYREAL,1,"r_acos", 8 },
{ TYDREAL,TYDREAL,1,"d_acos", 8 },
{ TYREAL,TYREAL,1,"r_atan", 9 },
{ TYDREAL,TYDREAL,1,"d_atan", 9 },
{ TYREAL,TYREAL,2,"r_atn2", 10 },
{ TYDREAL,TYDREAL,2,"d_atn2", 10 },
{ TYREAL,TYREAL,1,"r_sinh", 11 },
{ TYDREAL,TYDREAL,1,"d_sinh", 11 },
{ TYREAL,TYREAL,1,"r_cosh", 12 },
{ TYDREAL,TYDREAL,1,"d_cosh", 12 },
{ TYREAL,TYREAL,1,"r_tanh", 13 },
{ TYDREAL,TYDREAL,1,"d_tanh", 13 },
{ TYCHAR,TYLOGICAL,2,"hl_ge" },
{ TYCHAR,TYLOGICAL,2,"l_ge" },
{ TYCHAR,TYLOGICAL,2,"hl_gt" },
{ TYCHAR,TYLOGICAL,2,"l_gt" },
{ TYCHAR,TYLOGICAL,2,"hl_le" },
{ TYCHAR,TYLOGICAL,2,"l_le" },
{ TYCHAR,TYLOGICAL,2,"hl_lt" },
{ TYCHAR,TYLOGICAL,2,"l_lt" },
{ TYREAL,TYSHORT,1,"hr_expn" },
{ TYREAL,TYLONG,1,"ir_expn" },
{ TYDREAL,TYSHORT,1,"hd_expn" },
{ TYDREAL,TYLONG,1,"id_expn" },
{ TYREAL,TYREAL,1,"r_absp" },
{ TYDREAL,TYDREAL,1,"d_absp" },
{ TYREAL,TYDREAL,1,"r_rrsp" },
{ TYDREAL,TYDREAL,1,"d_rrsp" },
{ TYREAL,TYREAL,1,"r_frac" },
{ TYDREAL,TYDREAL,1,"d_frac" },
{ TYREAL,TYREAL,2,"r_make" },
{ TYDREAL,TYDREAL,2,"d_make" },
{ TYREAL,TYREAL,2,"r_scal" },
{ TYDREAL,TYDREAL,2,"d_scal" },
{ 0 }
} ;
#if 0
LOCAL struct Incstblock
{
char atype;
char rtype;
char constno;
} consttab[ ] =
{
{ TYSHORT, TYLONG, 0 },
{ TYLONG, TYLONG, 1 },
{ TYREAL, TYLONG, 2 },
{ TYDREAL, TYLONG, 3 },
{ TYSHORT, TYLONG, 4 },
{ TYLONG, TYLONG, 5 },
{ TYREAL, TYLONG, 6 },
{ TYDREAL, TYLONG, 7 },
{ TYREAL, TYLONG, 8 },
{ TYDREAL, TYLONG, 9 },
{ TYREAL, TYLONG, 10 },
{ TYDREAL, TYLONG, 11 },
{ TYREAL, TYREAL, 0 },
{ TYDREAL, TYDREAL, 1 },
{ TYSHORT, TYLONG, 12 },
{ TYLONG, TYLONG, 13 },
{ TYREAL, TYREAL, 2 },
{ TYDREAL, TYDREAL, 3 },
{ TYREAL, TYREAL, 4 },
{ TYDREAL, TYDREAL, 5 }
};
#endif
char *callbyvalue[ ] =
{0,
"sqrt",
"exp",
"log",
"sin",
"cos",
"tan",
"asin",
"acos",
"atan",
"atan2",
"sinh",
"cosh",
"tanh"
};
void
r8fix(Void) /* adjust tables for -r8 */
{
register struct Intrblock *I;
register struct Specblock *S;
for(I = intrtab; I->intrfname[0]; I++)
if (I->intrval.intrgroup != INTRGEN)
switch(I->intrval.intrstuff) {
case TYREAL:
I->intrval.intrstuff = TYDREAL;
I->intrval.intrno = I->intrval.dblintrno;
break;
case TYCOMPLEX:
I->intrval.intrstuff = TYDCOMPLEX;
I->intrval.intrno = I->intrval.dblintrno;
I->intrval.dblcmplx = 1;
}
for(S = spectab; S->atype; S++)
switch(S->atype) {
case TYCOMPLEX:
S->atype = TYDCOMPLEX;
if (S->rtype == TYREAL)
S->rtype = TYDREAL;
else if (S->rtype == TYCOMPLEX)
S->rtype = TYDCOMPLEX;
switch(S->spxname[0]) {
case 'r':
S->spxname[0] = 'd';
break;
case 'c':
S->spxname[0] = 'z';
break;
default:
Fatal("r8fix bug");
}
break;
case TYREAL:
S->atype = TYDREAL;
switch(S->rtype) {
case TYREAL:
S->rtype = TYDREAL;
if (S->spxname[0] != 'r')
Fatal("r8fix bug");
S->spxname[0] = 'd';
case TYDREAL: /* d_prod */
break;
case TYSHORT:
if (!strcmp(S->spxname, "hr_expn"))
S->spxname[1] = 'd';
else if (!strcmp(S->spxname, "h_nint"))
strcpy(S->spxname, "h_dnnt");
else Fatal("r8fix bug");
break;
case TYLONG:
if (!strcmp(S->spxname, "ir_expn"))
S->spxname[1] = 'd';
else if (!strcmp(S->spxname, "i_nint"))
strcpy(S->spxname, "i_dnnt");
else Fatal("r8fix bug");
break;
default:
Fatal("r8fix bug");
}
}
}
static expptr
#ifdef KR_headers
foldminmax(ismin, argsp) int ismin; struct Listblock *argsp;
#else
foldminmax(int ismin, struct Listblock *argsp)
#endif
{
#ifndef NO_LONG_LONG
Llong cq, cq1;
#endif
Constp h;
double cd, cd1;
ftnint ci;
int mtype;
struct Chain *cp, *cpx;
mtype = argsp->vtype;
cp = cpx = argsp->listp;
h = &((expptr)cp->datap)->constblock;
#ifndef NO_LONG_LONG
if (mtype == TYQUAD) {
cq = h->vtype == TYQUAD ? h->Const.cq : h->Const.ci;
while(cp = cp->nextp) {
h = &((expptr)cp->datap)->constblock;
cq1 = h->vtype == TYQUAD ? h->Const.cq : h->Const.ci;
if (ismin) {
if (cq > cq1) {
cq = cq1;
cpx = cp;
}
}
else {
if (cq < cq1) {
cq = cq1;
cpx = cp;
}
}
}
}
else
#endif
if (ISINT(mtype)) {
ci = h->Const.ci;
if (ismin)
while(cp = cp->nextp) {
h = &((expptr)cp->datap)->constblock;
if (ci > h->Const.ci) {
ci = h->Const.ci;
cpx = cp;
}
}
else
while(cp = cp->nextp) {
h = &((expptr)cp->datap)->constblock;
if (ci < h->Const.ci) {
ci = h->Const.ci;
cpx = cp;
}
}
}
else {
if (ISREAL(h->vtype))
cd = h->vstg ? atof(h->Const.cds[0]) : h->Const.cd[0];
#ifndef NO_LONG_LONG
else if (h->vtype == TYQUAD)
cd = h->Const.cq;
#endif
else
cd = h->Const.ci;
while(cp = cp->nextp) {
h = &((expptr)cp->datap)->constblock;
if (ISREAL(h->vtype))
cd1 = h->vstg ? atof(h->Const.cds[0])
: h->Const.cd[0];
#ifndef NO_LONG_LONG
else if (h->vtype == TYQUAD)
cd1 = h->Const.cq;
#endif
else
cd1 = h->Const.ci;
if (ismin) {
if (cd > cd1) {
cd = cd1;
cpx = cp;
}
}
else {
if (cd < cd1) {
cd = cd1;
cpx = cp;
}
}
}
}
h = &((expptr)cpx->datap)->constblock;
cpx->datap = 0;
frexpr((tagptr)argsp);
if (h->vtype != mtype)
return mkconv(mtype, (expptr)h);
return (expptr)h;
}
expptr
#ifdef KR_headers
intrcall(np, argsp, nargs)
Namep np;
struct Listblock *argsp;
int nargs;
#else
intrcall(Namep np, struct Listblock *argsp, int nargs)
#endif
{
int i, rettype;
ftnint k;
Addrp ap;
register struct Specblock *sp;
register struct Chain *cp;
expptr q, ep;
int constargs, mtype, op;
int f1field, f2field, f3field;
char *s;
static char bit_bits[] = "?bit_bits",
bit_shift[] = "?bit_shift",
bit_cshift[] = "?bit_cshift";
static char *bitop[3] = { bit_bits, bit_shift, bit_cshift };
static int t_pref[2] = { 'l', 'q' };
packed.ijunk = np->vardesc.varno;
f1field = packed.bits.f1;
f2field = packed.bits.f2;
f3field = packed.bits.f3;
if(nargs == 0)
goto badnargs;
mtype = 0;
constargs = 1;
for(cp = argsp->listp ; cp ; cp = cp->nextp)
{
ep = (expptr)cp->datap;
if (!ISCONST(ep))
constargs = 0;
else if( ep->headblock.vtype==TYSHORT )
cp->datap = (char *) mkconv(tyint, ep);
mtype = maxtype(mtype, ep->headblock.vtype);
}
switch(f1field)
{
case INTRBGEN:
op = f3field;
if( ! ONEOF(mtype, MSKINT) )
goto badtype;
if (op < OPBITBITS) {
if(nargs != 2)
goto badnargs;
if (op != OPBITTEST) {
#ifdef TYQUAD
if (mtype == TYQUAD)
op += 2;
#endif
goto intrbool2;
}
q = mkexpr(op, (expptr)argsp->listp->datap,
(expptr)argsp->listp->nextp->datap);
q->exprblock.vtype = TYLOGICAL;
goto intrbool2a;
}
if (nargs != 2 && (nargs != 3 || op == OPBITSH))
goto badnargs;
cp = argsp->listp;
ep = (expptr)cp->datap;
if (ep->headblock.vtype < TYLONG)
cp->datap = (char *)mkconv(TYLONG, ep);
while(cp->nextp) {
cp = cp->nextp;
ep = (expptr)cp->datap;
if (ep->headblock.vtype != TYLONG)
cp->datap = (char *)mkconv(TYLONG, ep);
}
if (op == OPBITSH) {
ep = (expptr)argsp->listp->nextp->datap;
if (ISCONST(ep)) {
if ((k = ep->constblock.Const.ci) < 0) {
q = (expptr)argsp->listp->datap;
if (ISCONST(q)) {
ep->constblock.Const.ci = -k;
op = OPRSHIFT;
goto intrbool2;
}
}
else {
op = OPLSHIFT;
goto intrbool2;
}
}
}
else if (nargs == 2) {
if (op == OPBITBITS)
goto badnargs;
cp->nextp = mkchain((char*)ICON(-1), 0);
}
ep = (expptr)argsp->listp->datap;
i = ep->headblock.vtype;
s = bitop[op - OPBITBITS];
*s = t_pref[i - TYLONG];
ap = builtin(i, s, 1);
return fixexpr((Exprp)
mkexpr(OPCCALL, (expptr)ap, (expptr)argsp) );
case INTRBOOL:
op = f3field;
if( ! ONEOF(mtype, MSKINT|MSKLOGICAL) )
goto badtype;
if(op == OPBITNOT)
{
if(nargs != 1)
goto badnargs;
q = mkexpr(OPBITNOT, (expptr)argsp->listp->datap, ENULL);
}
else
{
if(nargs != 2)
goto badnargs;
intrbool2:
q = mkexpr(op, (expptr)argsp->listp->datap,
(expptr)argsp->listp->nextp->datap);
}
intrbool2a:
frchain( &(argsp->listp) );
free( (charptr) argsp);
return(q);
case INTRCONV:
rettype = f2field;
switch(rettype) {
case TYLONG:
rettype = tyint;
break;
case TYLOGICAL:
rettype = tylog;
}
if( ISCOMPLEX(rettype) && nargs==2)
{
expptr qr, qi;
qr = (expptr) argsp->listp->datap;
qi = (expptr) argsp->listp->nextp->datap;
if (qr->headblock.vtype == TYDREAL
|| qi->headblock.vtype == TYDREAL)
rettype = TYDCOMPLEX;
if(ISCONST(qr) && ISCONST(qi))
q = mkcxcon(qr,qi);
else q = mkexpr(OPCONV,mkconv(rettype-2,qr),
mkconv(rettype-2,qi));
}
else if(nargs == 1) {
if (f3field && ((Exprp)argsp->listp->datap)->vtype
== TYDCOMPLEX)
rettype = TYDREAL;
q = mkconv(rettype+100, (expptr)argsp->listp->datap);
if (q->tag == TADDR)
q->addrblock.parenused = 1;
}
else goto badnargs;
q->headblock.vtype = rettype;
frchain(&(argsp->listp));
free( (charptr) argsp);
return(q);
#if 0
case INTRCNST:
/* Machine-dependent f77 stuff that f2c omits:
intcon contains
radix for short int
radix for long int
radix for single precision
radix for double precision
precision for short int
precision for long int
precision for single precision
precision for double precision
emin for single precision
emin for double precision
emax for single precision
emax for double prcision
largest short int
largest long int
realcon contains
tiny for single precision
tiny for double precision
huge for single precision
huge for double precision
mrsp (epsilon) for single precision
mrsp (epsilon) for double precision
*/
{ register struct Incstblock *cstp;
extern ftnint intcon[14];
extern double realcon[6];
cstp = consttab + f3field;
for(i=0 ; i<f2field ; ++i)
if(cstp->atype == mtype)
goto foundconst;
else
++cstp;
goto badtype;
foundconst:
switch(cstp->rtype)
{
case TYLONG:
return(mkintcon(intcon[cstp->constno]));
case TYREAL:
case TYDREAL:
return(mkrealcon(cstp->rtype,
realcon[cstp->constno]) );
default:
Fatal("impossible intrinsic constant");
}
}
#endif
case INTRGEN:
sp = spectab + f3field;
if(no66flag)
if(sp->atype == mtype)
goto specfunct;
else err66("generic function");
for(i=0; i<f2field ; ++i)
if(sp->atype == mtype)
goto specfunct;
else
++sp;
warn1 ("bad argument type to intrinsic %s", np->fvarname);
/* Made this a warning rather than an error so things like "log (5) ==>
log (5.0)" can be accommodated. When none of these cases matches, the
argument is cast up to the first type in the spectab list; this first
type is assumed to be the "smallest" type, e.g. REAL before DREAL
before COMPLEX, before DCOMPLEX */
sp = spectab + f3field;
mtype = sp -> atype;
goto specfunct;
case INTRSPEC:
sp = spectab + f3field;
specfunct:
if(tyint==TYLONG && ONEOF(sp->rtype,M(TYSHORT)|M(TYLOGICAL))
&& (sp+1)->atype==sp->atype)
++sp;
if(nargs != sp->nargs)
goto badnargs;
if(mtype != sp->atype)
goto badtype;
/* NOTE!! I moved fixargs (YES) into the ELSE branch so that constants in
the inline expression wouldn't get put into the constant table */
fixargs (NO, argsp);
cast_args (mtype, argsp -> listp);
if(q = Inline((int)(sp-spectab), mtype, argsp->listp))
{
frchain( &(argsp->listp) );
free( (charptr) argsp);
} else {
if(sp->othername) {
/* C library routines that return double... */
/* sp->rtype might be TYREAL */
ap = builtin(sp->rtype,
callbyvalue[sp->othername], 1);
q = fixexpr((Exprp)
mkexpr(OPCCALL, (expptr)ap, (expptr)argsp) );
} else {
fixargs(YES, argsp);
ap = builtin(sp->rtype, sp->spxname, 0);
q = fixexpr((Exprp)
mkexpr(OPCALL, (expptr)ap, (expptr)argsp) );
} /* else */
} /* else */
return(q);
case INTRMIN:
case INTRMAX:
if(nargs < 2)
goto badnargs;
if( ! ONEOF(mtype, MSKINT|MSKREAL) )
goto badtype;
argsp->vtype = mtype;
if (constargs)
q = foldminmax(f1field==INTRMIN, argsp);
else
q = mkexpr(f1field==INTRMIN ? OPMIN : OPMAX,
(expptr)argsp, ENULL);
q->headblock.vtype = mtype;
rettype = f2field;
if(rettype == TYLONG)
rettype = tyint;
else if(rettype == TYUNKNOWN)
rettype = mtype;
return( mkconv(rettype, q) );
default:
fatali("intrcall: bad intrgroup %d", f1field);
}
badnargs:
errstr("bad number of arguments to intrinsic %s", np->fvarname);
goto bad;
badtype:
errstr("bad argument type to intrinsic %s", np->fvarname);
bad:
return( errnode() );
}
int
#ifdef KR_headers
intrfunct(s)
char *s;
#else
intrfunct(char *s)
#endif
{
register struct Intrblock *p;
int i;
extern int intr_omit;
for(p = intrtab; p->intrval.intrgroup!=INTREND ; ++p)
{
if( !strcmp(s, p->intrfname) )
{
if (i = p->intrval.extflag) {
if (i & intr_omit)
return 0;
if (noextflag)
errext(s);
}
packed.bits.f1 = p->intrval.intrgroup;
packed.bits.f2 = p->intrval.intrstuff;
packed.bits.f3 = p->intrval.intrno;
packed.bits.f4 = p->intrval.dblcmplx;
return(packed.ijunk);
}
}
return(0);
}
Addrp
#ifdef KR_headers
intraddr(np)
Namep np;
#else
intraddr(Namep np)
#endif
{
Addrp q;
register struct Specblock *sp;
int f3field;
if(np->vclass!=CLPROC || np->vprocclass!=PINTRINSIC)
fatalstr("intraddr: %s is not intrinsic", np->fvarname);
packed.ijunk = np->vardesc.varno;
f3field = packed.bits.f3;
switch(packed.bits.f1)
{
case INTRGEN:
/* imag, log, and log10 arent specific functions */
if(f3field==31 || f3field==43 || f3field==47)
goto bad;
case INTRSPEC:
sp = spectab + f3field;
if (tyint == TYLONG
&& (sp->rtype == TYSHORT || sp->rtype == TYLOGICAL))
++sp;
q = builtin(sp->rtype, sp->spxname,
sp->othername ? 1 : 0);
return(q);
case INTRCONV:
case INTRMIN:
case INTRMAX: