ref: b0a059537147237e868b4a8f07922ae8a349e55c
dir: /sys/src/cmd/cc/com64.c/
#include "cc.h" /* * this is machine dependent, 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* noduv2f; Node* noduv2d; 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* nodaddd; Node* nodsubd; Node* nodmuld; Node* noddivd; Node* nodvasop; char etconv[NTYPE]; /* 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); noduv2f = fvn("_uv2f", TFLOAT); noduv2d = fvn("_uv2d", 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); nodaddd = fvn("_vasaddd", TVLONG); nodsubd = fvn("_vassubd", TVLONG); nodmuld = fvn("_vasmuld", TVLONG); noddivd = fvn("_vasdivd", 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; case OCOND: 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: case OLIST: case OCOMMA: 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(n->op == OCAST) { if(l->type && typev[l->type->etype]) { if(machcap(n)) return 1; switch(n->type->etype) { case TVOID: return 1; case TDOUBLE: if(l->type->etype == TUVLONG) a = noduv2d; else a = nodv2d; goto setfnx; case TFLOAT: if(l->type->etype == TUVLONG) a = noduv2f; else 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); l->complex = l->left->complex; 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: while(l->op == OFUNC) l = l->right; if(mixedasop(n->left->type, n->right->type)) { if(n->right->type->etype != TDOUBLE) { r = new(OCAST, r, 0); r->type = types[TDOUBLE]; } if(l->type->etype == TUVLONG) a = noduv2d; else a = nodv2d; 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); t->complex = l->complex; r = new(OLIST, t, r); switch(n->op){ default: diag(n, "mixed vlong/double %O not implemented", n->op); case OASADD: a = nodaddd; break; case OASSUB: a = nodsubd; break; case OASMUL: a = nodmuld; break; case OASDIV: a = noddivd; break; } n->left = a; n->right = r; n->complex = FNX; n->op = OFUNC; return 1; } 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); t->complex = l->complex; 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; }