// Inferno utils/cc/com64.c
// http://code.google.com/p/inferno-os/source/browse/utils/cc/com64.c
//
// Copyright © 1994-1999 Lucent Technologies Inc. All rights reserved.
// Portions Copyright © 1995-1997 C H Forsyth (forsyth@terzarima.net)
// Portions Copyright © 1997-1999 Vita Nuova Limited
// Portions Copyright © 2000-2007 Vita Nuova Holdings Limited (www.vitanuova.com)
// Portions Copyright © 2004,2006 Bruce Ellis
// Portions Copyright © 2005-2007 C H Forsyth (forsyth@terzarima.net)
// Revisions Copyright © 2000-2007 Lucent Technologies Inc. and others
// Portions Copyright © 2009 The Go Authors. All rights reserved.
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
#include <u.h>
#include "cc.h"
/*
* this is machine depend, but it is totally
* common on all of the 64-bit symulating machines.
*/
#define FNX 100 /* botch -- redefinition */
Node* nodaddv;
Node* nodsubv;
Node* nodmulv;
Node* noddivv;
Node* noddivvu;
Node* nodmodv;
Node* nodmodvu;
Node* nodlshv;
Node* nodrshav;
Node* nodrshlv;
Node* nodandv;
Node* nodorv;
Node* nodxorv;
Node* nodnegv;
Node* nodcomv;
Node* nodtestv;
Node* nodeqv;
Node* nodnev;
Node* nodlev;
Node* nodltv;
Node* nodgev;
Node* nodgtv;
Node* nodhiv;
Node* nodhsv;
Node* nodlov;
Node* nodlsv;
Node* nodf2v;
Node* nodd2v;
Node* nodp2v;
Node* nodsi2v;
Node* nodui2v;
Node* nodsl2v;
Node* nodul2v;
Node* nodsh2v;
Node* noduh2v;
Node* nodsc2v;
Node* noduc2v;
Node* nodv2f;
Node* nodv2d;
Node* nodv2ui;
Node* nodv2si;
Node* nodv2ul;
Node* nodv2sl;
Node* nodv2uh;
Node* nodv2sh;
Node* nodv2uc;
Node* nodv2sc;
Node* nodvpp;
Node* nodppv;
Node* nodvmm;
Node* nodmmv;
Node* nodvasop;
char etconv[NALLTYPES]; /* for _vasop */
Init initetconv[] =
{
TCHAR, 1, 0,
TUCHAR, 2, 0,
TSHORT, 3, 0,
TUSHORT, 4, 0,
TLONG, 5, 0,
TULONG, 6, 0,
TVLONG, 7, 0,
TUVLONG, 8, 0,
TINT, 9, 0,
TUINT, 10, 0,
-1, 0, 0,
};
Node*
fvn(char *name, int type)
{
Node *n;
n = new(ONAME, Z, Z);
n->sym = slookup(name);
n->sym->sig = SIGINTERN;
if(fntypes[type] == 0)
fntypes[type] = typ(TFUNC, types[type]);
n->type = fntypes[type];
n->etype = type;
n->class = CGLOBL;
n->addable = 10;
n->complex = 0;
return n;
}
void
com64init(void)
{
Init *p;
nodaddv = fvn("_addv", TVLONG);
nodsubv = fvn("_subv", TVLONG);
nodmulv = fvn("_mulv", TVLONG);
noddivv = fvn("_divv", TVLONG);
noddivvu = fvn("_divvu", TVLONG);
nodmodv = fvn("_modv", TVLONG);
nodmodvu = fvn("_modvu", TVLONG);
nodlshv = fvn("_lshv", TVLONG);
nodrshav = fvn("_rshav", TVLONG);
nodrshlv = fvn("_rshlv", TVLONG);
nodandv = fvn("_andv", TVLONG);
nodorv = fvn("_orv", TVLONG);
nodxorv = fvn("_xorv", TVLONG);
nodnegv = fvn("_negv", TVLONG);
nodcomv = fvn("_comv", TVLONG);
nodtestv = fvn("_testv", TLONG);
nodeqv = fvn("_eqv", TLONG);
nodnev = fvn("_nev", TLONG);
nodlev = fvn("_lev", TLONG);
nodltv = fvn("_ltv", TLONG);
nodgev = fvn("_gev", TLONG);
nodgtv = fvn("_gtv", TLONG);
nodhiv = fvn("_hiv", TLONG);
nodhsv = fvn("_hsv", TLONG);
nodlov = fvn("_lov", TLONG);
nodlsv = fvn("_lsv", TLONG);
nodf2v = fvn("_f2v", TVLONG);
nodd2v = fvn("_d2v", TVLONG);
nodp2v = fvn("_p2v", TVLONG);
nodsi2v = fvn("_si2v", TVLONG);
nodui2v = fvn("_ui2v", TVLONG);
nodsl2v = fvn("_sl2v", TVLONG);
nodul2v = fvn("_ul2v", TVLONG);
nodsh2v = fvn("_sh2v", TVLONG);
noduh2v = fvn("_uh2v", TVLONG);
nodsc2v = fvn("_sc2v", TVLONG);
noduc2v = fvn("_uc2v", TVLONG);
nodv2f = fvn("_v2f", TFLOAT);
nodv2d = fvn("_v2d", TDOUBLE);
nodv2sl = fvn("_v2sl", TLONG);
nodv2ul = fvn("_v2ul", TULONG);
nodv2si = fvn("_v2si", TINT);
nodv2ui = fvn("_v2ui", TUINT);
nodv2sh = fvn("_v2sh", TSHORT);
nodv2uh = fvn("_v2ul", TUSHORT);
nodv2sc = fvn("_v2sc", TCHAR);
nodv2uc = fvn("_v2uc", TUCHAR);
nodvpp = fvn("_vpp", TVLONG);
nodppv = fvn("_ppv", TVLONG);
nodvmm = fvn("_vmm", TVLONG);
nodmmv = fvn("_mmv", TVLONG);
nodvasop = fvn("_vasop", TVLONG);
for(p = initetconv; p->code >= 0; p++)
etconv[p->code] = p->value;
}
int
com64(Node *n)
{
Node *l, *r, *a, *t;
int lv, rv;
if(n->type == 0)
return 0;
l = n->left;
r = n->right;
lv = 0;
if(l && l->type && typev[l->type->etype])
lv = 1;
rv = 0;
if(r && r->type && typev[r->type->etype])
rv = 1;
if(lv) {
switch(n->op) {
case OEQ:
a = nodeqv;
goto setbool;
case ONE:
a = nodnev;
goto setbool;
case OLE:
a = nodlev;
goto setbool;
case OLT:
a = nodltv;
goto setbool;
case OGE:
a = nodgev;
goto setbool;
case OGT:
a = nodgtv;
goto setbool;
case OHI:
a = nodhiv;
goto setbool;
case OHS:
a = nodhsv;
goto setbool;
case OLO:
a = nodlov;
goto setbool;
case OLS:
a = nodlsv;
goto setbool;
case OANDAND:
case OOROR:
if(machcap(n))
return 1;
if(rv) {
r = new(OFUNC, nodtestv, r);
n->right = r;
r->complex = FNX;
r->op = OFUNC;
r->type = types[TLONG];
}
case OCOND:
case ONOT:
if(machcap(n))
return 1;
l = new(OFUNC, nodtestv, l);
n->left = l;
l->complex = FNX;
l->op = OFUNC;
l->type = types[TLONG];
n->complex = FNX;
return 1;
}
}
if(rv) {
if(machcap(n))
return 1;
switch(n->op) {
case OANDAND:
case OOROR:
r = new(OFUNC, nodtestv, r);
n->right = r;
r->complex = FNX;
r->op = OFUNC;
r->type = types[TLONG];
return 1;
}
}
if(typev[n->type->etype]) {
if(machcap(n))
return 1;
switch(n->op) {
default:
diag(n, "unknown vlong %O", n->op);
case OFUNC:
n->complex = FNX;
case ORETURN:
case OAS:
case OIND:
return 1;
case OADD:
a = nodaddv;
goto setbop;
case OSUB:
a = nodsubv;
goto setbop;
case OMUL:
case OLMUL:
a = nodmulv;
goto setbop;
case ODIV:
a = noddivv;
goto setbop;
case OLDIV:
a = noddivvu;
goto setbop;
case OMOD:
a = nodmodv;
goto setbop;
case OLMOD:
a = nodmodvu;
goto setbop;
case OASHL:
a = nodlshv;
goto setbop;
case OASHR:
a = nodrshav;
goto setbop;
case OLSHR:
a = nodrshlv;
goto setbop;
case OAND:
a = nodandv;
goto setbop;
case OOR:
a = nodorv;
goto setbop;
case OXOR:
a = nodxorv;
goto setbop;
case OPOSTINC:
a = nodvpp;
goto setvinc;
case OPOSTDEC:
a = nodvmm;
goto setvinc;
case OPREINC:
a = nodppv;
goto setvinc;
case OPREDEC:
a = nodmmv;
goto setvinc;
case ONEG:
a = nodnegv;
goto setfnx;
case OCOM:
a = nodcomv;
goto setfnx;
case OCAST:
switch(l->type->etype) {
case TCHAR:
a = nodsc2v;
goto setfnxl;
case TUCHAR:
a = noduc2v;
goto setfnxl;
case TSHORT:
a = nodsh2v;
goto setfnxl;
case TUSHORT:
a = noduh2v;
goto setfnxl;
case TINT:
a = nodsi2v;
goto setfnx;
case TUINT:
a = nodui2v;
goto setfnx;
case TLONG:
a = nodsl2v;
goto setfnx;
case TULONG:
a = nodul2v;
goto setfnx;
case TFLOAT:
a = nodf2v;
goto setfnx;
case TDOUBLE:
a = nodd2v;
goto setfnx;
case TIND:
a = nodp2v;
goto setfnx;
}
diag(n, "unknown %T->vlong cast", l->type);
return 1;
case OASADD:
a = nodaddv;
goto setasop;
case OASSUB:
a = nodsubv;
goto setasop;
case OASMUL:
case OASLMUL:
a = nodmulv;
goto setasop;
case OASDIV:
a = noddivv;
goto setasop;
case OASLDIV:
a = noddivvu;
goto setasop;
case OASMOD:
a = nodmodv;
goto setasop;
case OASLMOD:
a = nodmodvu;
goto setasop;
case OASASHL:
a = nodlshv;
goto setasop;
case OASASHR:
a = nodrshav;
goto setasop;
case OASLSHR:
a = nodrshlv;
goto setasop;
case OASAND:
a = nodandv;
goto setasop;
case OASOR:
a = nodorv;
goto setasop;
case OASXOR:
a = nodxorv;
goto setasop;
}
}
if(typefd[n->type->etype] && l && l->op == OFUNC) {
switch(n->op) {
case OASADD:
case OASSUB:
case OASMUL:
case OASLMUL:
case OASDIV:
case OASLDIV:
case OASMOD:
case OASLMOD:
case OASASHL:
case OASASHR:
case OASLSHR:
case OASAND:
case OASOR:
case OASXOR:
if(l->right && typev[l->right->etype]) {
diag(n, "sorry float <asop> vlong not implemented\n");
}
}
}
if(n->op == OCAST) {
if(l->type && typev[l->type->etype]) {
if(machcap(n))
return 1;
switch(n->type->etype) {
case TDOUBLE:
a = nodv2d;
goto setfnx;
case TFLOAT:
a = nodv2f;
goto setfnx;
case TLONG:
a = nodv2sl;
goto setfnx;
case TULONG:
a = nodv2ul;
goto setfnx;
case TINT:
a = nodv2si;
goto setfnx;
case TUINT:
a = nodv2ui;
goto setfnx;
case TSHORT:
a = nodv2sh;
goto setfnx;
case TUSHORT:
a = nodv2uh;
goto setfnx;
case TCHAR:
a = nodv2sc;
goto setfnx;
case TUCHAR:
a = nodv2uc;
goto setfnx;
case TIND: // small pun here
a = nodv2ul;
goto setfnx;
}
diag(n, "unknown vlong->%T cast", n->type);
return 1;
}
}
return 0;
setbop:
n->left = a;
n->right = new(OLIST, l, r);
n->complex = FNX;
n->op = OFUNC;
return 1;
setfnxl:
l = new(OCAST, l, 0);
l->type = types[TLONG];
l->complex = l->left->complex;
setfnx:
n->left = a;
n->right = l;
n->complex = FNX;
n->op = OFUNC;
return 1;
setvinc:
n->left = a;
l = new(OADDR, l, Z);
l->type = typ(TIND, l->left->type);
n->right = new(OLIST, l, r);
n->complex = FNX;
n->op = OFUNC;
return 1;
setbool:
if(machcap(n))
return 1;
n->left = a;
n->right = new(OLIST, l, r);
n->complex = FNX;
n->op = OFUNC;
n->type = types[TLONG];
return 1;
setasop:
if(l->op == OFUNC) {
l = l->right;
goto setasop;
}
t = new(OCONST, 0, 0);
t->vconst = etconv[l->type->etype];
t->type = types[TLONG];
t->addable = 20;
r = new(OLIST, t, r);
t = new(OADDR, a, 0);
t->type = typ(TIND, a->type);
r = new(OLIST, t, r);
t = new(OADDR, l, 0);
t->type = typ(TIND, l->type);
r = new(OLIST, t, r);
n->left = nodvasop;
n->right = r;
n->complex = FNX;
n->op = OFUNC;
return 1;
}
void
bool64(Node *n)
{
Node *n1;
if(machcap(Z))
return;
if(typev[n->type->etype]) {
n1 = new(OXXX, 0, 0);
*n1 = *n;
n->right = n1;
n->left = nodtestv;
n->complex = FNX;
n->addable = 0;
n->op = OFUNC;
n->type = types[TLONG];
}
}
/*
* more machine depend stuff.
* this is common for 8,16,32,64 bit machines.
* this is common for ieee machines.
*/
double
convvtof(vlong v)
{
double d;
d = v; /* BOTCH */
return d;
}
vlong
convftov(double d)
{
vlong v;
v = d; /* BOTCH */
return v;
}
double
convftox(double d, int et)
{
if(!typefd[et])
diag(Z, "bad type in castftox %s", tnames[et]);
return d;
}
vlong
convvtox(vlong c, int et)
{
int n;
n = 8 * ewidth[et];
c &= MASK(n);
if(!typeu[et])
if(c & SIGN(n))
c |= ~MASK(n);
return c;
}