/************************************************************************* * * * YAP Prolog * * * * Yap Prolog was developed at NCCUP - Universidade do Porto * * * * Copyright L.Damas, V.S.Costa and Universidade do Porto 1985-1997 * * * ************************************************************************** * * * File: amasm.c * * comments: abstract machine assembler * * * * Last rev: $Date: 2004-12-20 21:44:56 $ * * $Log: not supported by cvs2svn $ * Revision 1.68 2004/12/07 16:54:57 vsc * fix memory overflow * * Revision 1.67 2004/12/05 05:01:23 vsc * try to reduce overheads when running with goal expansion enabled. * CLPBN fixes * Handle overflows when allocating big clauses properly. * * Revision 1.66 2004/11/19 22:08:41 vsc * replace SYSTEM_ERROR by out OUT_OF_WHATEVER_ERROR whenever appropriate. * * Revision 1.65 2004/10/26 20:15:48 vsc * More bug fixes for overflow handling * * Revision 1.64 2004/09/30 21:37:40 vsc * fixes for thread support * * Revision 1.63 2004/09/27 20:45:02 vsc * Mega clauses * Fixes to sizeof(expand_clauses) which was being overestimated * Fixes to profiling+indexing * Fixes to reallocation of memory after restoring * Make sure all clauses, even for C, end in _Ystop * Don't reuse space for Streams * Fix Stream_F on StreaNo+1 * * Revision 1.62 2004/08/20 16:16:23 vsc * growheap was not checking some compiler instructions * source was getting confused in reconsult * * Revision 1.61 2004/04/29 03:45:50 vsc * fix garbage collection in execute_tail * * Revision 1.60 2004/04/22 20:07:04 vsc * more fixes for USE_SYSTEM_MEMORY * * Revision 1.59 2004/03/31 01:03:09 vsc * support expand group of clauses * * Revision 1.58 2004/03/10 14:59:55 vsc * optimise -> for type tests * * * * *************************************************************************/ #ifdef SCCS static char SccsId[] = "@(#)amasm.c 1.3 3/15/90"; #endif #include "Yap.h" #include "yapio.h" #include "compile.h" #include "clause.h" #ifdef YAPOR #include "or.macros.h" #endif /* YAPOR */ #if HAVE_STRING_H #include #endif /* info on compare built-ins */ #define TYPE_XX 0 #define TYPE_CX 1 #define TYPE_XC 2 typedef struct cmp_op_info_struct { wamreg x1_arg, x2_arg; Int c_arg; int c_type; struct clause_info_struct *cl_info; } cmp_op_info; typedef struct clause_info_struct { int alloc_found, dealloc_found; CELL commit_lab; struct pred_entry *CurrentPred; } clause_info; STATIC_PROTO(OPREG Var_Ref, (Ventry *, int)); STATIC_PROTO(wamreg emit_xreg, (CELL)); STATIC_PROTO(yslot emit_yreg, (CELL)); STATIC_PROTO(wamreg emit_x, (CELL)); STATIC_PROTO(yslot emit_y, (Ventry *)); STATIC_PROTO(yamop *emit_a, (CELL)); STATIC_PROTO(CELL *emit_bmlabel, (CELL, struct intermediates *)); STATIC_PROTO(yamop *emit_ilabel, (CELL, struct intermediates *)); STATIC_PROTO(Functor emit_f, (CELL)); STATIC_PROTO(CELL emit_c, (CELL)); STATIC_PROTO(COUNT emit_count, (CELL)); STATIC_PROTO(OPCODE emit_op, (op_numbers)); STATIC_PROTO(yamop *a_cl, (op_numbers, yamop *, int, struct intermediates *)); STATIC_PROTO(yamop *a_cle, (op_numbers, yamop *, int, struct intermediates *)); STATIC_PROTO(yamop *a_e, (op_numbers, yamop *, int)); STATIC_PROTO(yamop *a_ue, (op_numbers, op_numbers, yamop *, int)); STATIC_PROTO(yamop *a_v, (op_numbers, yamop *, int, struct PSEUDO *)); STATIC_PROTO(yamop *a_uv, (Ventry *,op_numbers, op_numbers, yamop *, int)); STATIC_PROTO(yamop *a_vr, (op_numbers, yamop *, int, struct PSEUDO *)); STATIC_PROTO(yamop *a_rv, (op_numbers, OPREG, yamop *, int, struct PSEUDO *)); STATIC_PROTO(yamop *a_vv, (op_numbers, op_numbers, yamop *, int, struct intermediates *)); STATIC_PROTO(yamop *a_glist, (int *, yamop *, int, struct intermediates *)); STATIC_PROTO(void a_pair, (CELL *, int, struct intermediates *)); STATIC_PROTO(yamop *a_f, (CELL, op_numbers, yamop *, int)); STATIC_PROTO(yamop *a_c, (CELL, op_numbers, yamop *, int)); STATIC_PROTO(yamop *a_uc, (CELL, op_numbers, op_numbers, yamop *, int)); STATIC_PROTO(yamop *a_n, (op_numbers, int, yamop *, int)); STATIC_PROTO(yamop *a_un, (op_numbers, op_numbers, int, yamop *, int)); STATIC_PROTO(yamop *a_nc, (CELL, op_numbers, int, yamop *, int)); STATIC_PROTO(yamop *a_unc, (CELL, op_numbers, op_numbers, int, yamop *, int)); STATIC_PROTO(yamop *a_r, (CELL, op_numbers, yamop *, int)); STATIC_PROTO(yamop *a_p, (op_numbers, clause_info *, yamop *, int, struct intermediates *)); STATIC_PROTO(yamop *a_pl, (op_numbers, PredEntry *, yamop *, int)); STATIC_PROTO(yamop *a_l, (CELL, op_numbers, yamop *, int, struct intermediates *)); STATIC_PROTO(yamop *a_hx, (op_numbers, union clause_obj *, int, yamop *, int, struct intermediates *)); STATIC_PROTO(yamop *a_if, (op_numbers, union clause_obj *, int, yamop *, int, struct intermediates *cip)); STATIC_PROTO(yamop *a_cut, (clause_info *,yamop *, int, struct intermediates *)); #ifdef YAPOR STATIC_PROTO(yamop *a_try, (op_numbers, CELL, CELL, *clause_info, int, int, yamop *, int)); STATIC_PROTO(yamop *a_either, (op_numbers, CELL, CELL, int, int, yamop *, int, struct intermediates *)); #else STATIC_PROTO(yamop *a_try, (op_numbers, CELL, CELL, clause_info *, yamop *, int)); STATIC_PROTO(yamop *a_either, (op_numbers, CELL, CELL, yamop *, int, struct intermediates *)); #endif /* YAPOR */ STATIC_PROTO(yamop *a_gl, (op_numbers, clause_info *, yamop *, int, struct PSEUDO *)); STATIC_PROTO(yamop *a_bfunc, (CELL, clause_info *, yamop *, int, struct intermediates *)); STATIC_PROTO(wamreg compile_cmp_flags, (char *)); STATIC_PROTO(yamop *a_igl, (CELL, op_numbers, yamop *, int, struct intermediates *)); STATIC_PROTO(yamop *a_xigl, (op_numbers, yamop *, int, struct PSEUDO *)); STATIC_PROTO(yamop *a_ucons, (int *, compiler_vm_op, yamop *, int, struct intermediates *)); STATIC_PROTO(yamop *a_uvar, (yamop *, int, struct intermediates *)); STATIC_PROTO(yamop *a_wvar, (yamop *, int, struct intermediates *)); STATIC_PROTO(yamop *do_pass, (int, yamop **, int, int *, struct intermediates *, UInt)); #ifdef DEBUG_OPCODES STATIC_PROTO(void DumpOpCodes, (void)); #endif #ifdef SFUNC STATIC_PROTO(void a_vsf, (int, yamop *, int, struct PSEUDO *)); STATIC_PROTO(void a_asf, (int, yamop *, int, struct PSEUDO *)); #endif STATIC_PROTO(yamop *check_alloc, (clause_info *, yamop *, int, struct intermediates *)); STATIC_PROTO(yamop *a_deallocate, (clause_info *, yamop *, int, struct intermediates *)); STATIC_PROTO(yamop *a_bmap, (yamop *, int, struct PSEUDO *)); STATIC_PROTO(void a_fetch_vv, (cmp_op_info *, int, struct intermediates *)); STATIC_PROTO(void a_fetch_cv, (cmp_op_info *, int, struct intermediates *)); STATIC_PROTO(void a_fetch_vc, (cmp_op_info *, int, struct intermediates *)); STATIC_PROTO(yamop *a_f2, (int, cmp_op_info *, yamop *, int, struct intermediates *)); #define CELLSIZE sizeof(CELL) #define GONEXT(TYPE) code_p = ((yamop *)(&(code_p->u.TYPE.next))) inline static yslot emit_y(Ventry *ve) { #if MSHIFTOFFS return(-FixedEnvSize - ((ve->NoOfVE) & MaskVarAdrs) - 1); #else return(-FixedEnvSize - (((ve->NoOfVE) & MaskVarAdrs) * CELLSIZE) - CELLSIZE); #endif } inline static OPREG Var_Ref(Ventry *ve, int is_y_var) { if (is_y_var) { #if MSHIFTOFFS return -FixedEnvSize - ((ve->NoOfVE) & MaskVarAdrs) - 1; #else return -FixedEnvSize - (((ve->NoOfVE) & MaskVarAdrs) * CELLSIZE) - CELLSIZE; #endif } else { #if PRECOMPUTE_REGADDRESS return (CELL) (XREGS + ((ve->NoOfVE) & MaskVarAdrs)); #else #if MSHIFTOFFS return ((ve->NoOfVE) & MaskVarAdrs); #else return CELLSIZE * ((ve->NoOfVE) & MaskVarAdrs); #endif #endif /* PRECOMPUTE_REGADDRESS */ } } #define is_void_var() (((Ventry *) (cip->cpc->rnd1))->KindOfVE == VoidVar) #define is_a_void(X) (((Ventry *) (X))->KindOfVE == VoidVar) #define is_temp_var() (((Ventry *) (cip->cpc->rnd1))->KindOfVE == TempVar) #define is_atemp_var(p) (((Ventry *) (p->rnd1))->KindOfVE == TempVar) #define no_ref_var() (((Ventry *) (cip->cpc->rnd1))->NoOfVE == 1) #define no_ref(X) (((Ventry *) (X))->NoOfVE == 1) inline static yamop * fill_small(CELL w, yamop *code_p, int pass_no) { SMALLUNSGN *ptr = ((SMALLUNSGN *) (code_p)); if (pass_no) *ptr = (SMALLUNSGN) w; return (yamop *) (++ptr); } inline static yamop * fill_a(CELL a, yamop *code_p, int pass_no) { CELL *ptr = ((CELL *) (code_p)); if (pass_no) *ptr = a; return (yamop *) (++ptr); } inline static wamreg emit_xreg(CELL w) { return (wamreg) w; } inline static yslot emit_yreg(CELL w) { return (yslot) w; } inline static wamreg emit_x(CELL xarg) { #if PRECOMPUTE_REGADDRESS return (emit_xreg((CELL) (XREGS + xarg))); #else #if MSHIFTOFFS return (emit_xreg(xarg)); #else return (emit_xreg(CELLSIZE * (xarg))); #endif #endif /* PRECOMPUTE_REGADDRESS */ } wamreg Yap_emit_x(CELL xarg) { return emit_x(xarg); } inline static yamop * emit_a(CELL a) { return ((yamop *) (a)); } inline static struct pred_entry * emit_pe(struct pred_entry *a) { return a; } inline static yamop * emit_ilabel(register CELL addr, struct intermediates *cip) { if (addr & 1) return (emit_a(Unsigned(cip->code_addr) + cip->label_offset[addr])); else { return (emit_a(addr)); } } inline static CELL * emit_bmlabel(register CELL addr, struct intermediates *cip) { return (CELL *)(emit_a(Unsigned(cip->code_addr) + cip->label_offset[addr])); } inline static Functor emit_f(CELL a) { return (Functor) (a); } inline static CELL emit_c(CELL a) { return a; } static inline COUNT emit_count(CELL count) { return count; } #ifdef DEBUG_OPCODES inline static void DumpOpCodes(void) { int i = 0, j; while (i < 30) { for (j = i; j <= _std_top; j += 25) fprintf(Yap_stderr, "%5d %6lx", j, absmadr(j)); fputc('\n',Yap_stderr); ++i; } } #endif static inline OPCODE emit_op(op_numbers op) { return absmadr((Int) op); } static OPCODE opcode(op_numbers op) { return (emit_op(op)); } OPCODE Yap_opcode(op_numbers op) { return opcode(op); } static void add_clref(CELL clause_code, int pass_no) { if (pass_no) { LogUpdClause *cl = ClauseCodeToLogUpdClause(clause_code); cl->ClRefCount++; } } static yamop * a_cl(op_numbers opcode, yamop *code_p, int pass_no, struct intermediates *cip) { if (pass_no) { code_p->opc = emit_op(opcode); code_p->u.l.l = cip->code_addr; } GONEXT(l); return code_p; } static yamop * a_lucl(op_numbers opcode, yamop *code_p, int pass_no, struct intermediates *cip) { if (pass_no) { code_p->opc = emit_op(opcode); code_p->u.Ill.I = (LogUpdIndex *)cip->code_addr; code_p->u.Ill.l1 = emit_ilabel(cip->cpc->rnd1, cip); code_p->u.Ill.l2 = emit_ilabel(cip->cpc->rnd2, cip); code_p->u.Ill.s = cip->cpc->rnd3; #if defined(YAPOR) || defined(THREADS) code_p->u.Ill.p = cip->CurrentPred; #endif } GONEXT(Ill); return code_p; } static yamop * a_cle(op_numbers opcode, yamop *code_p, int pass_no, struct intermediates *cip) { if (pass_no) { LogUpdClause *cl = (LogUpdClause *)cip->code_addr; code_p->opc = emit_op(opcode); code_p->u.EC.ClTrail = 0; code_p->u.EC.ClENV = 0; code_p->u.EC.ClRefs = 0; code_p->u.EC.ClBase = cip->code_addr; cl->ClExt = code_p; cl->ClFlags |= LogUpdRuleMask; } GONEXT(EC); return code_p; } inline static yamop * a_e(op_numbers opcode, yamop *code_p, int pass_no) { if (pass_no) { code_p->opc = emit_op(opcode); } GONEXT(e); return code_p; } inline static yamop * a_ue(op_numbers opcode, op_numbers opcodew, yamop *code_p, int pass_no) { if (pass_no) { code_p->opc = emit_op(opcode); code_p->u.o.opcw = emit_op(opcodew); } GONEXT(o); return code_p; } inline static yamop * a_v(op_numbers opcode, yamop *code_p, int pass_no, struct PSEUDO *cpc) { Ventry *ve = (Ventry *) cpc->rnd1; OPREG var_offset; int is_y_var = (ve->KindOfVE == PermVar); var_offset = Var_Ref(ve, is_y_var); if (ve->KindOfVE == PermVar) { if (pass_no) { code_p->opc = emit_op((op_numbers)((int)opcode + is_y_var)); code_p->u.y.y = emit_yreg(var_offset); } GONEXT(y); } else { if (pass_no) { code_p->opc = emit_op((op_numbers)((int)opcode + is_y_var)); code_p->u.x.x = emit_xreg(var_offset); } GONEXT(x); } return code_p; } inline static yamop * a_uv(Ventry *ve, op_numbers opcode, op_numbers opcodew, yamop *code_p, int pass_no) { OPREG var_offset; int is_y_var = (ve->KindOfVE == PermVar); var_offset = Var_Ref(ve, is_y_var); if (is_y_var) { if (pass_no) { code_p->opc = emit_op((op_numbers)((int)opcode + is_y_var)); code_p->u.oy.opcw = emit_op((op_numbers)((int)opcodew + is_y_var)); code_p->u.oy.y = emit_yreg(var_offset); } GONEXT(oy); } else { if (pass_no) { code_p->opc = emit_op((op_numbers)((int)opcode + is_y_var)); code_p->u.ox.opcw = emit_op((op_numbers)((int)opcodew + is_y_var)); code_p->u.ox.x = emit_xreg(var_offset); } GONEXT(ox); } return code_p; } inline static yamop * a_vv(op_numbers opcode, op_numbers opcodew, yamop *code_p, int pass_no, struct intermediates *cip) { Ventry *ve = (Ventry *) cip->cpc->rnd1; int is_y_var = (ve->KindOfVE == PermVar); if (pass_no) { OPREG var_offset = Var_Ref(ve, is_y_var); code_p->opc = emit_op(opcode); code_p->u.oxx.opcw = emit_op(opcodew); code_p->u.oxx.xl = emit_xreg(var_offset); } cip->cpc = cip->cpc->nextInst; if (pass_no) { OPREG var_offset; int is_y_var; ve = (Ventry *) cip->cpc->rnd1; is_y_var = (ve->KindOfVE == PermVar); var_offset = Var_Ref(ve, is_y_var); code_p->u.oxx.xr = emit_xreg(var_offset); } GONEXT(oxx); return code_p; } inline static yamop * a_vr(op_numbers opcode, yamop *code_p, int pass_no, struct PSEUDO *cpc) { Ventry *ve = (Ventry *) cpc->rnd1; int is_y_var = (ve->KindOfVE == PermVar); if (is_y_var) { if (pass_no) { OPREG var_offset; var_offset = Var_Ref(ve, is_y_var); code_p->opc = emit_op((op_numbers)((int)opcode + is_y_var)); code_p->u.yx.y = emit_yreg(var_offset); code_p->u.yx.x = emit_x(cpc->rnd2); } GONEXT(yx); } else { if (pass_no) { OPREG var_offset; var_offset = Var_Ref(ve, is_y_var); code_p->opc = emit_op((op_numbers)((int)opcode + is_y_var)); code_p->u.xx.xl = emit_xreg(var_offset); code_p->u.xx.xr = emit_x(cpc->rnd2); } GONEXT(xx); } return code_p; } inline static yamop * a_rv(op_numbers opcode, OPREG var_offset, yamop *code_p, int pass_no, struct PSEUDO *cpc) { Ventry *ve = (Ventry *) cpc->rnd1; int is_y_var = (ve->KindOfVE == PermVar); if (is_y_var) { if (pass_no) { code_p->opc = emit_op((op_numbers)((int)opcode + is_y_var)); code_p->u.xy.x = emit_x(cpc->rnd2); code_p->u.xy.y = emit_yreg(var_offset); } GONEXT(xy); } else { if (pass_no) { code_p->opc = emit_op((op_numbers)((int)opcode + is_y_var)); code_p->u.xx.xl = emit_x(cpc->rnd2); code_p->u.xx.xr = emit_xreg(var_offset); } GONEXT(xx); } return code_p; } #ifdef SFUNC /* vsc: I don't understand these instructions */ inline static void a_vsf(int opcode, yamop *code_p, int pass_no, struct PSEUDO *cpc) { Ventry *ve = (Ventry *) cpc->rnd1; OPREG var_offset; int is_y_var = (ve->KindOfVE == PermVar); var_offset = Var_Ref(ve, is_y_var); if (is_y_var) { if (pass_no) { code_p->opc = emit_op((op_numbers)((int)opcode + is_y_var)); code_p->u.fy.f = emit_f(cpc->rnd2); code_p->u.fy.a = ArityOfFunctor(emit_f(cpc->rnd2)); code_p->u.fy.y = emit_yreg(var_offset); } GONEXT(fy); } else { if (pass_no) { code_p->opc = emit_op((op_numbers)((int)opcode + is_y_var)); code_p->u.fx.f = emit_f(cpc->rnd2); code_p->u.fx.a = ArityOfFunctor(emit_f(cpc->rnd2)); code_p->u.fx.x = emit_xreg(var_offset); } GONEXT(fx); } return code_p; } inline static void a_asf(int opcode, yamop *code_p, int pass_no, struct PSEUDO *cpc) { if (pass_no) { code_p->opc = emit_op((op_numbers)((int)opcode + is_y_var)); code_p->u.fn.f = emit_f(cpc->rnd2); code_p->u.fn.a = ArityOfFunctor(emit_f(cpc->rnd2)); code_p->u.fn.n = emit_count(cpc->rnd1); } GONEXT(fn); return code_p; } #endif inline static void a_pair(CELL *seq_ptr, int pass_no, struct intermediates *cip) { if (pass_no) { CELL lab, lab0 = seq_ptr[1]; lab = (CELL) emit_ilabel(lab0, cip); seq_ptr[0] = (CELL) emit_a(seq_ptr[0]); seq_ptr[1] = lab; } } inline static yamop * a_n(op_numbers opcode, int count, yamop *code_p, int pass_no) { if (pass_no) { code_p->opc = emit_op(opcode); code_p->u.s.s = count; } GONEXT(s); return code_p; } inline static yamop * a_un(op_numbers opcode, op_numbers opcodew, int count, yamop *code_p, int pass_no) { if (pass_no) { code_p->opc = emit_op(opcode); code_p->u.os.opcw = emit_op(opcodew); code_p->u.os.s = count; } GONEXT(os); return code_p; } inline static yamop * a_f(CELL rnd1, op_numbers opcode, yamop *code_p, int pass_no) { if (pass_no) { Functor f = emit_f(rnd1); code_p->opc = emit_op(opcode); code_p->u.f.f = f; code_p->u.f.a = ArityOfFunctor(f); } GONEXT(f); return code_p; } inline static yamop * a_uf(CELL rnd1, op_numbers opcode, op_numbers opcodew, yamop *code_p, int pass_no) { if (pass_no) { Functor f = emit_f(rnd1); code_p->opc = emit_op(opcode); code_p->u.of.opcw = emit_op(opcodew); code_p->u.of.f = f; code_p->u.of.a = ArityOfFunctor(f); } GONEXT(of); return code_p; } inline static yamop * a_c(CELL rnd1, op_numbers opcode, yamop *code_p, int pass_no) { if (pass_no) { code_p->opc = emit_op(opcode); code_p->u.c.c = emit_c(rnd1); } GONEXT(c); return code_p; } inline static yamop * a_uc(CELL rnd1, op_numbers opcode, op_numbers opcode_w, yamop *code_p, int pass_no) { if (pass_no) { code_p->opc = emit_op(opcode); code_p->u.oc.opcw = emit_op(opcode_w); code_p->u.oc.c = emit_c(rnd1); } GONEXT(oc); return code_p; } inline static yamop * a_blob(CELL rnd1, op_numbers opcode, int *clause_has_blobsp, yamop *code_p, int pass_no, struct intermediates *cip) { if (pass_no) { code_p->opc = emit_op(opcode); code_p->u.c.c = AbsAppl((CELL *)(Unsigned(cip->code_addr) + cip->label_offset[rnd1])); } *clause_has_blobsp = TRUE; GONEXT(c); return code_p; } inline static yamop * a_ublob(CELL rnd1, op_numbers opcode, op_numbers opcode_w, int *clause_has_blobsp, yamop *code_p, int pass_no, struct intermediates *cip) { if (pass_no) { code_p->opc = emit_op(opcode); code_p->u.oc.opcw = emit_op(opcode_w); code_p->u.oc.c = AbsAppl((CELL *)(Unsigned(cip->code_addr) + cip->label_offset[rnd1])); } *clause_has_blobsp = TRUE; GONEXT(oc); return code_p; } inline static yamop * a_nc(CELL rnd1, op_numbers opcode, int i, yamop *code_p, int pass_no) { if (pass_no) { code_p->opc = emit_op(opcode); code_p->u.sc.s = i; code_p->u.sc.c = emit_c(rnd1); } GONEXT(sc); return code_p; } inline static yamop * a_unc(CELL rnd1, op_numbers opcode, op_numbers opcodew, int i, yamop *code_p, int pass_no) { if (pass_no) { code_p->opc = emit_op(opcode); code_p->u.osc.opcw = emit_op(opcodew); code_p->u.osc.s = i; code_p->u.osc.c = emit_c(rnd1); } GONEXT(osc); return code_p; } inline static yamop * a_rf(op_numbers opcode, yamop *code_p, int pass_no, struct PSEUDO *cpc) { if (pass_no) { code_p->opc = emit_op(opcode); code_p->u.xf.x = emit_x(cpc->rnd2); code_p->u.xf.f = emit_f(cpc->rnd1); code_p->u.xf.a = ArityOfFunctor(emit_f(cpc->rnd1)); } GONEXT(xf); return code_p; } static yamop * a_rc(op_numbers opcode, yamop *code_p, int pass_no, struct intermediates *cip) { if (cip->cpc->rnd2 == 1 && cip->cpc->nextInst->rnd2 == 2 && (cip->cpc->nextInst->op == get_atom_op || cip->cpc->nextInst->op == get_num_op)) { struct PSEUDO *next; next = cip->cpc->nextInst; if (next->nextInst->rnd2 == 3 && (next->nextInst->op == get_atom_op || next->nextInst->op == get_num_op)) { struct PSEUDO *snext = next->nextInst; if (snext->nextInst->rnd2 == 4 && (snext->nextInst->op == get_atom_op || snext->nextInst->op == get_num_op)) { struct PSEUDO *s2next = snext->nextInst; if (s2next->nextInst->rnd2 == 5 && (s2next->nextInst->op == get_atom_op || s2next->nextInst->op == get_num_op)) { struct PSEUDO *s3next = s2next->nextInst; if (s3next->nextInst->rnd2 == 6 && (s3next->nextInst->op == get_atom_op || s3next->nextInst->op == get_num_op)) { if (pass_no) { code_p->opc = emit_op(_get_6atoms); code_p->u.cccccc.c1 = emit_c(cip->cpc->rnd1); code_p->u.cccccc.c2 = emit_c(next->rnd1); code_p->u.cccccc.c3 = emit_c(snext->rnd1); code_p->u.cccccc.c4 = emit_c(s2next->rnd1); code_p->u.cccccc.c5 = emit_c(s3next->rnd1); code_p->u.cccccc.c6 = emit_c(s3next->nextInst->rnd1); } cip->cpc = s3next->nextInst; GONEXT(cccccc); } else { if (pass_no) { code_p->opc = emit_op(_get_5atoms); code_p->u.ccccc.c1 = emit_c(cip->cpc->rnd1); code_p->u.ccccc.c2 = emit_c(next->rnd1); code_p->u.ccccc.c3 = emit_c(snext->rnd1); code_p->u.ccccc.c4 = emit_c(s2next->rnd1); code_p->u.ccccc.c5 = emit_c(s3next->rnd1); } cip->cpc = s3next; GONEXT(ccccc); } } else { if (pass_no) { code_p->opc = emit_op(_get_4atoms); code_p->u.cccc.c1 = emit_c(cip->cpc->rnd1); code_p->u.cccc.c2 = emit_c(next->rnd1); code_p->u.cccc.c3 = emit_c(snext->rnd1); code_p->u.cccc.c4 = emit_c(s2next->rnd1); } cip->cpc = s2next; GONEXT(cccc); } } else { if (pass_no) { code_p->opc = emit_op(_get_3atoms); code_p->u.ccc.c1 = emit_c(cip->cpc->rnd1); code_p->u.ccc.c2 = emit_c(next->rnd1); code_p->u.ccc.c3 = emit_c(snext->rnd1); } cip->cpc = snext; GONEXT(ccc); } } else { if (pass_no) { code_p->opc = emit_op(_get_2atoms); code_p->u.cc.c1 = emit_c(cip->cpc->rnd1); code_p->u.cc.c2 = emit_c(next->rnd1); } cip->cpc = next; GONEXT(cc); } } else { if (pass_no) { code_p->opc = emit_op(opcode); code_p->u.xc.x = emit_x(cip->cpc->rnd2); code_p->u.xc.c = emit_c(cip->cpc->rnd1); } GONEXT(xc); } return code_p; } inline static yamop * a_rb(op_numbers opcode, int *clause_has_blobsp, yamop *code_p, int pass_no, struct intermediates *cip) { if (pass_no) { code_p->opc = emit_op(opcode); code_p->u.xc.x = emit_x(cip->cpc->rnd2); code_p->u.xc.c = AbsAppl((CELL *)(Unsigned(cip->code_addr) + cip->label_offset[cip->cpc->rnd1])); } *clause_has_blobsp = TRUE; GONEXT(xc); return code_p; } inline static yamop * a_r(CELL arnd2, op_numbers opcode, yamop *code_p, int pass_no) { if (pass_no) { code_p->opc = emit_op(opcode); code_p->u.x.x = emit_x(arnd2); } GONEXT(x); return code_p; } static yamop * check_alloc(clause_info *clinfo, yamop *code_p, int pass_no, struct intermediates *cip) { if (clinfo->alloc_found == 2) { if (clinfo->CurrentPred->PredFlags & LogUpdatePredFlag) code_p = a_cle(_alloc_for_logical_pred, code_p, pass_no, cip); code_p = a_e(_allocate, code_p, pass_no); clinfo->alloc_found = 1; } return code_p; } static yamop * a_p(op_numbers opcode, clause_info *clinfo, yamop *code_p, int pass_no, struct intermediates *cip) { /* emit opcode & predicate code address */ Prop fe = (Prop) (cip->cpc->rnd1); CELL Flags = RepPredProp(fe)->PredFlags; if (Flags & AsmPredFlag) { op_numbers op; code_p = check_alloc(clinfo, code_p, pass_no, cip); switch (Flags & 0x7f) { case _equal: op = _p_equal; break; case _dif: op = _p_dif; break; case _eq: op = _p_eq; break; case _functor: op = _p_functor; break; default: op = _p_equal; /* just to make some compilers happy */ Yap_Error(SYSTEM_ERROR, TermNil, "internal assembler error for built-in (%d)", (Flags & 0x7f)); save_machine_regs(); longjmp(cip->CompilerBotch, 1); } return a_e(op, code_p, pass_no); } if (Flags & CPredFlag) { code_p = check_alloc(clinfo, code_p, pass_no, cip); if (clinfo->commit_lab && (Flags & TestPredFlag)) { if (pass_no) { if (Flags & UserCPredFlag) { Yap_Error(SYSTEM_ERROR, TermNil, "user defined predicate cannot be a test predicate"); save_machine_regs(); longjmp(cip->CompilerBotch, 1); } else code_p->opc = emit_op(_call_c_wfail); code_p->u.sdl.s = emit_count(-Signed(RealEnvSize) - CELLSIZE * cip->cpc->rnd2); code_p->u.sdl.l = emit_a(Unsigned(cip->code_addr) + cip->label_offset[clinfo->commit_lab]); code_p->u.sdl.p = emit_pe(RepPredProp(fe)); } GONEXT(sdl); clinfo->commit_lab = 0; } else { if (pass_no) { if (Flags & UserCPredFlag) { code_p->opc = emit_op(_call_usercpred); } else { if (RepPredProp(fe)->FunctorOfPred == FunctorExecuteInMod) { code_p->opc = emit_op(_p_execute); } else { code_p->opc = emit_op(_call_cpred); } } code_p->u.sla.s = emit_count(-Signed(RealEnvSize) - CELLSIZE * (cip->cpc->rnd2)); if (RepPredProp(fe)->FunctorOfPred != FunctorExecuteInMod) { code_p->u.sla.sla_u.p = RepPredProp(fe); } else { code_p->u.sla.sla_u.mod = cip->cpc->rnd4; } code_p->u.sla.p0 = clinfo->CurrentPred; if (cip->cpc->rnd2) { code_p->u.sla.bmap = emit_bmlabel(cip->cpc->arnds[1], cip); } else { /* there is no bitmap as there are no variables in the environment */ code_p->u.sla.bmap = NULL; } } GONEXT(sla); } return code_p; } if (opcode == _call && clinfo->alloc_found == 2) { if (clinfo->CurrentPred->PredFlags & LogUpdatePredFlag) code_p = a_cle(_alloc_for_logical_pred, code_p, pass_no, cip); if (pass_no) { code_p->opc = emit_op(_fcall); } clinfo->alloc_found = 1; } else { code_p = check_alloc(clinfo, code_p, pass_no, cip); if (pass_no) code_p->opc = emit_op(opcode); } if (opcode == _call) { if (pass_no) { code_p->u.sla.s = emit_count(-Signed(RealEnvSize) - CELLSIZE * cip->cpc->rnd2); code_p->u.sla.sla_u.p = RepPredProp(fe); code_p->u.sla.p0 = clinfo->CurrentPred; if (cip->cpc->rnd2) code_p->u.sla.bmap = emit_bmlabel(cip->cpc->arnds[1], cip); else /* there is no bitmap as there are no variables in the environment */ code_p->u.sla.bmap = NULL; } GONEXT(sla); } else { if (pass_no) code_p->u.p.p = RepPredProp(fe); GONEXT(p); } return code_p; } /* emit a false call so that the garbage collector and friends will find reasonable information on the stack. */ static yamop * a_empty_call(clause_info *clinfo, yamop *code_p, int pass_no, struct intermediates *cip) { if (clinfo->alloc_found == 1 && !clinfo->dealloc_found) { /* we have a solid environment under us, just trust it */ if (pass_no) code_p->opc = emit_op(_call); } else { /** oops, our environment is crap */ if (pass_no) code_p->opc = emit_op(_fcall); } if (pass_no) { PredEntry *pe = RepPredProp(Yap_GetPredPropByAtom(AtomTrue,0)); code_p->u.sla.s = emit_count(-Signed(RealEnvSize) - CELLSIZE * cip->cpc->rnd2); code_p->u.sla.sla_u.p = pe; code_p->u.sla.p0 = clinfo->CurrentPred; if (cip->cpc->rnd2) code_p->u.sla.bmap = emit_bmlabel(cip->cpc->rnd1, cip); else /* there is no bitmap as there are no variables in the environment */ code_p->u.sla.bmap = NULL; } GONEXT(sla); return code_p; } static yamop * a_l(CELL rnd1, op_numbers opcode, yamop *code_p, int pass_no, struct intermediates *cip) { if (pass_no) { code_p->opc = emit_op(opcode); code_p->u.l.l = emit_a(Unsigned(cip->code_addr) + cip->label_offset[rnd1]); } GONEXT(l); return code_p; } static yamop * a_il(CELL rnd1, op_numbers opcode, yamop *code_p, int pass_no, struct intermediates *cip) { if (pass_no) { code_p->opc = emit_op(opcode); code_p->u.l.l = emit_ilabel(rnd1, cip); } GONEXT(l); return code_p; } static yamop * a_pl(op_numbers opcode, PredEntry *pred, yamop *code_p, int pass_no) { if (pass_no) { code_p->opc = emit_op(opcode); code_p->u.p.p = pred; } GONEXT(p); return code_p; } static wamreg compile_cmp_flags(char *s) { if (strcmp(s,"=<") == 0) return(EQ_OK_IN_CMP|LT_OK_IN_CMP); if (strcmp(s,"<") == 0) return(LT_OK_IN_CMP); if (strcmp(s,">=") == 0) return(EQ_OK_IN_CMP|GT_OK_IN_CMP); if (strcmp(s,">") == 0) return(GT_OK_IN_CMP); if (strcmp(s,"=:=") == 0) return(EQ_OK_IN_CMP); if (strcmp(s,"=\\=") == 0) return(GT_OK_IN_CMP|LT_OK_IN_CMP); Yap_Error(SYSTEM_ERROR, TermNil, "internal assembler error in flags for %s", s); return(0); } wamreg Yap_compile_cmp_flags(PredEntry *pred) { return compile_cmp_flags(RepAtom(NameOfFunctor(pred->FunctorOfPred))->StrOfAE); } static yamop * a_bfunc(CELL pred, clause_info *clinfo, yamop *code_p, int pass_no, struct intermediates *cip) { Ventry *ve = (Ventry *) cip->cpc->rnd1; OPREG var_offset; int is_y_var = (ve->KindOfVE == PermVar); var_offset = Var_Ref(ve, is_y_var); if (ve->KindOfVE == PermVar) { yslot v1 = emit_yreg(var_offset); cip->cpc = cip->cpc->nextInst; ve = (Ventry *) cip->cpc->rnd1; is_y_var = (ve->KindOfVE == PermVar); var_offset = Var_Ref(ve, is_y_var); if (is_y_var) { if (pass_no) { code_p->opc = emit_op(_call_bfunc_yy); code_p->u.llyy.p = RepPredProp(((Prop)pred)); if (clinfo->commit_lab) { code_p->u.llyy.f = emit_a(Unsigned(cip->code_addr) + cip->label_offset[clinfo->commit_lab]); clinfo->commit_lab = 0; } else { code_p->u.llyy.f = FAILCODE; } code_p->u.llyy.y1 = v1; code_p->u.llyy.y2 = emit_yreg(var_offset); code_p->u.llyy.flags = compile_cmp_flags(RepAtom(NameOfFunctor(RepPredProp(((Prop)pred))->FunctorOfPred))->StrOfAE); } GONEXT(llyy); } else { if (pass_no) { code_p->opc = emit_op(_call_bfunc_yx); code_p->u.llxy.p = RepPredProp(((Prop)pred)); if (clinfo->commit_lab) { code_p->u.llxy.f = emit_a(Unsigned(cip->code_addr) + cip->label_offset[clinfo->commit_lab]); clinfo->commit_lab = 0; } else { code_p->u.llxy.f = FAILCODE; } code_p->u.llxy.x = emit_xreg(var_offset); code_p->u.llxy.y = v1; code_p->u.llxy.flags = compile_cmp_flags(RepAtom(NameOfFunctor(RepPredProp(((Prop)pred))->FunctorOfPred))->StrOfAE); } GONEXT(llxy); } } else { wamreg x1 = emit_xreg(var_offset); OPREG var_offset; cip->cpc = cip->cpc->nextInst; ve = (Ventry *) cip->cpc->rnd1; is_y_var = (ve->KindOfVE == PermVar); var_offset = Var_Ref(ve, is_y_var); if (is_y_var) { if (pass_no) { code_p->opc = emit_op(_call_bfunc_xy); code_p->u.llxy.p = RepPredProp(((Prop)pred)); if (clinfo->commit_lab) { code_p->u.llxy.f = emit_a(Unsigned(cip->code_addr) + cip->label_offset[clinfo->commit_lab]); clinfo->commit_lab = 0; } else { code_p->u.llxy.f = FAILCODE; } code_p->u.llxy.x = x1; code_p->u.llxy.y = emit_yreg(var_offset); code_p->u.llxy.flags = compile_cmp_flags(RepAtom(NameOfFunctor(RepPredProp(((Prop)pred))->FunctorOfPred))->StrOfAE); } GONEXT(llxy); } else { if (pass_no) { code_p->opc = emit_op(_call_bfunc_xx); code_p->u.llxx.p = RepPredProp(((Prop)pred)); if (clinfo->commit_lab) { code_p->u.llxx.f = emit_a(Unsigned(cip->code_addr) + cip->label_offset[clinfo->commit_lab]); clinfo->commit_lab = 0; } else { code_p->u.llxx.f = FAILCODE; } code_p->u.llxx.x1 = x1; code_p->u.llxx.x2 = emit_xreg(var_offset); code_p->u.llxx.flags = compile_cmp_flags(RepAtom(NameOfFunctor(RepPredProp(((Prop)pred))->FunctorOfPred))->StrOfAE); } GONEXT(llxx); } } return code_p; } static yamop * a_igl(CELL rnd1, op_numbers opcode, yamop *code_p, int pass_no, struct intermediates *cip) { if (pass_no) { code_p->opc = emit_op(opcode); code_p->u.l.l = emit_ilabel(rnd1, cip); } GONEXT(l); return code_p; } static yamop * a_xigl(op_numbers opcode, yamop *code_p, int pass_no, struct PSEUDO *cpc) { if (pass_no) { code_p->opc = emit_op(opcode); code_p->u.xl.x = emit_x(cpc->rnd2); code_p->u.xl.l = emit_a(cpc->rnd1); } GONEXT(xl); return code_p; } static yamop * a_4sw(op_numbers opcode, yamop *code_p, int pass_no, struct intermediates *cip) { CELL *seq_ptr; if (opcode == _switch_on_type && cip->cpc->nextInst != NULL && cip->cpc->nextInst->op == label_op && cip->cpc->arnds[1] == cip->cpc->nextInst->rnd1 && !(cip->cpc->arnds[0] & 1) && cip->cpc->nextInst->nextInst != NULL && cip->cpc->nextInst->nextInst->op == if_c_op && cip->cpc->nextInst->nextInst->rnd1 == 1 && cip->cpc->nextInst->nextInst->arnds[1] == TermNil && cip->cpc->nextInst->nextInst->arnds[0] == cip->cpc->arnds[2]) { if (pass_no) { code_p->opc = emit_op(_switch_list_nl); seq_ptr = cip->cpc->arnds; code_p->u.ollll.pop = ((yamop *)(seq_ptr[0]))->opc; code_p->u.ollll.l1 = emit_ilabel(seq_ptr[0], cip); code_p->u.ollll.l2 = emit_ilabel(cip->cpc->nextInst->nextInst->arnds[2], cip); code_p->u.ollll.l3 = emit_ilabel(seq_ptr[2], cip); code_p->u.ollll.l4 = emit_ilabel(seq_ptr[3], cip); } GONEXT(ollll); cip->cpc = cip->cpc->nextInst->nextInst; } else { if (pass_no) { code_p->opc = emit_op(opcode); seq_ptr = cip->cpc->arnds; code_p->u.llll.l1 = emit_ilabel(seq_ptr[0], cip); code_p->u.llll.l2 = emit_ilabel(seq_ptr[1], cip); code_p->u.llll.l3 = emit_ilabel(seq_ptr[2], cip); code_p->u.llll.l4 = emit_ilabel(seq_ptr[3], cip); } GONEXT(llll); } return code_p; } static yamop * a_4sw_x(op_numbers opcode, yamop *code_p, int pass_no, struct intermediates *cip) { CELL *seq_ptr; if (pass_no) { code_p->opc = emit_op(opcode); code_p->u.xllll.x = emit_x(cip->cpc->rnd2); cip->cpc = cip->cpc->nextInst; seq_ptr = cip->cpc->arnds; code_p->u.xllll.l1 = emit_ilabel(seq_ptr[0], cip); code_p->u.xllll.l2 = emit_ilabel(seq_ptr[1], cip); code_p->u.xllll.l3 = emit_ilabel(seq_ptr[2], cip); code_p->u.xllll.l4 = emit_ilabel(seq_ptr[3], cip); } else { /* skip one */ cip->cpc = cip->cpc->nextInst; } GONEXT(xllll); return code_p; } static yamop * a_4sw_s(op_numbers opcode, yamop *code_p, int pass_no, struct intermediates *cip) { CELL *seq_ptr; if (pass_no) { code_p->opc = emit_op(opcode); code_p->u.sllll.s = cip->cpc->rnd2; cip->cpc = cip->cpc->nextInst; seq_ptr = cip->cpc->arnds; code_p->u.sllll.l1 = emit_ilabel(seq_ptr[0], cip); code_p->u.sllll.l2 = emit_ilabel(seq_ptr[1], cip); code_p->u.sllll.l3 = emit_ilabel(seq_ptr[2], cip); code_p->u.sllll.l4 = emit_ilabel(seq_ptr[3], cip); } else { /* skip one */ cip->cpc = cip->cpc->nextInst; } GONEXT(sllll); return code_p; } static void init_log_upd_table(LogUpdIndex *ic, union clause_obj *cl_u) { /* insert myself in the indexing code chain */ ic->SiblingIndex = cl_u->lui.ChildIndex; ic->ChildIndex = NULL; ic->ClRefCount = 0; ic->u.ParentIndex = (LogUpdIndex *)cl_u; INIT_LOCK(ic->ClLock); cl_u->lui.ChildIndex = ic; cl_u->lui.ClRefCount++; } static void init_static_table(StaticIndex *ic, union clause_obj *cl_u) { /* insert myself in the indexing code chain */ ic->SiblingIndex = cl_u->si.ChildIndex; ic->ChildIndex = NULL; cl_u->si.ChildIndex = ic; } static yamop * a_hx(op_numbers opcode, union clause_obj *cl_u, int log_update, yamop *code_p, int pass_no, struct intermediates *cip) { register CELL i, imax; register CELL *seq_ptr = (CELL *)cip->cpc->rnd2; int j = 0; imax = cip->cpc->rnd1; if (pass_no) { code_p->opc = emit_op(opcode); code_p->u.sssl.s = emit_c(imax); code_p->u.sssl.l = emit_a(cip->cpc->rnd2); if (log_update) { init_log_upd_table(ClauseCodeToLogUpdIndex(cip->cpc->rnd2), cl_u); } else { init_static_table(ClauseCodeToStaticIndex(cip->cpc->rnd2), cl_u); } } if (pass_no) { for (i = 0; i < imax; i++) { yamop *ipc = (yamop *)seq_ptr[1]; a_pair(seq_ptr, pass_no, cip); if (ipc != FAILCODE) { j++; } seq_ptr += 2; } code_p->u.sssl.e = j; code_p->u.sssl.w = 0; } GONEXT(sssl); return code_p; } static yamop * a_if(op_numbers opcode, union clause_obj *cl_u, int log_update, yamop *code_p, int pass_no, struct intermediates *cip) { register CELL i, imax; register CELL *seq_ptr = (CELL *)cip->cpc->rnd2; imax = cip->cpc->rnd1; if (pass_no) { code_p->opc = emit_op(opcode); code_p->u.sssl.s = code_p->u.sssl.e = emit_count(imax); code_p->u.sssl.w = 0; code_p->u.sssl.l = emit_a(cip->cpc->rnd2); if (log_update) { init_log_upd_table(ClauseCodeToLogUpdIndex(cip->cpc->rnd2), cl_u); } else { init_static_table(ClauseCodeToStaticIndex(cip->cpc->rnd2), cl_u); } } GONEXT(sssl); if (pass_no) { CELL lab, lab0; for (i = 0; i < imax; i++) { a_pair(seq_ptr, pass_no, cip); seq_ptr += 2; } lab0 = seq_ptr[1]; lab = (CELL) emit_ilabel(lab0, cip); seq_ptr[1] = lab; } return code_p; } static yamop * a_ifnot(op_numbers opcode, yamop *code_p, int pass_no, struct intermediates *cip) { CELL *seq_ptr = cip->cpc->arnds; if (pass_no) { code_p->opc = emit_op(opcode); code_p->u.clll.c = seq_ptr[0]; /* tag */ code_p->u.clll.l1 = emit_ilabel(seq_ptr[1], cip); /* success point */ code_p->u.clll.l2 = emit_ilabel(seq_ptr[2], cip); /* fail point */ code_p->u.clll.l3 = emit_ilabel(seq_ptr[3], cip); /* delay point */ } GONEXT(clll); return code_p; } static yamop * a_cut(clause_info *clinfo, yamop *code_p, int pass_no, struct intermediates *cip) { code_p = check_alloc(clinfo, code_p, pass_no, cip); if (clinfo->dealloc_found) { return a_e(_cut_e, code_p, pass_no); } else if (clinfo->alloc_found) { return a_e(_cut, code_p, pass_no); } else { return a_e(_cut_t, code_p, pass_no); } } static yamop * #ifdef YAPOR a_try(op_numbers opcode, CELL lab, CELL opr, clause_info *clinfo, int nofalts, int hascut, yamop *code_p, int pass_no) #else a_try(op_numbers opcode, CELL lab, CELL opr, clause_info *clinfo, yamop *code_p, int pass_no) #endif /* YAPOR */ { switch (opr) { case 2: if (opcode == _try_clause) { if (pass_no) { code_p->opc = emit_op(_try_clause2); code_p->u.l.l = emit_a(lab); } GONEXT(l); return code_p; } else if (opcode == _retry) { if (pass_no) { code_p->opc = emit_op(_retry2); code_p->u.l.l = emit_a(lab); } GONEXT(l); return code_p; } case 3: if (opcode == _try_clause) { if (pass_no) { code_p->opc = emit_op(_try_clause3); code_p->u.l.l = emit_a(lab); } GONEXT(l); return code_p; } else if (opcode == _retry) { if (pass_no) { code_p->opc = emit_op(_retry3); code_p->u.l.l = emit_a(lab); } GONEXT(l); return code_p; } case 4: if (opcode == _try_clause) { if (pass_no) { code_p->opc = emit_op(_try_clause4); code_p->u.l.l = emit_a(lab); } GONEXT(l); return code_p; } else if (opcode == _retry) { if (pass_no) { code_p->opc = emit_op(_retry4); code_p->u.l.l = emit_a(lab); } GONEXT(l); return code_p; } } if (pass_no) { code_p->opc = emit_op(opcode); code_p->u.ld.d = emit_a(lab); code_p->u.ld.s = emit_count(opr); code_p->u.ld.p = clinfo->CurrentPred; #ifdef TABLING code_p->u.ld.te = clinfo->CurrentPred->TableOfPred; #endif #ifdef YAPOR INIT_YAMOP_LTT(code_p, nofalts); if (hascut) PUT_YAMOP_CUT(code_p); if (clinfo->CurrentPred->PredFlags & SequentialPredFlag) PUT_YAMOP_SEQ(code_p); #endif /* YAPOR */ } GONEXT(ld); return code_p; } static yamop * #ifdef YAPOR a_either(op_numbers opcode, CELL opr, CELL lab, int nofalts, int hascut, yamop *code_p, int pass_no, struct intermediates *cip) #else a_either(op_numbers opcode, CELL opr, CELL lab, yamop *code_p, int pass_no, struct intermediates *cip) #endif /* YAPOR */ { if (pass_no) { code_p->opc = emit_op(opcode); code_p->u.sla.s = emit_count(opr); code_p->u.sla.sla_u.l = emit_a(lab); code_p->u.sla.p0 = cip->CurrentPred; #ifdef YAPOR INIT_YAMOP_LTT(code_p, nofalts); if (hascut) PUT_YAMOP_CUT(code_p); if (clinfo->CurrentPred->PredFlags & SequentialPredFlag) PUT_YAMOP_SEQ(code_p); if(opcode != _or_last) { code_p->u.sla.bmap = emit_bmlabel(cip->cpc->arnds[1], cip); } #else code_p->u.sla.bmap = emit_bmlabel(cip->cpc->arnds[1], cip); #endif /* YAPOR */ } GONEXT(sla); return code_p; } static yamop * a_gl(op_numbers opcode, clause_info *clinfo, yamop *code_p, int pass_no, struct PSEUDO *cpc) { #ifdef YAPOR return a_try(opcode, cpc->rnd1, IPredArity, clinfo, cpc->rnd2 >> 1, cpc->rnd2 & 1, code_p, pass_no); #else return a_try(opcode, cpc->rnd1, IPredArity, clinfo, code_p, pass_no); #endif /* YAPOR */ } /* * optimizes several unify_cons for the same constant. It must be avoided for * the head of the first argument, because of indexing */ static yamop * a_ucons(int *do_not_optimise_uatomp, compiler_vm_op opcode, yamop *code_p, int pass_no, struct intermediates *cip) { #if AGGREGATE_OPS PInstr *np = cip->cpc->nextInst; register int i = 0; CELL my_cons = cip->cpc->rnd1; if (*do_not_optimise_uatomp) { *do_not_optimise_uatomp = FALSE; if (opcode == unify_atom_op) return a_uc(cip->cpc->rnd1, _unify_atom, _unify_atom_write, code_p, pass_no); else return a_c(cip->cpc->rnd1, _write_atom, code_p, pass_no); } else { while (np->op == opcode && np->rnd1 == my_cons) { i++; cip->cpc = np; np = np->nextInst; } if (i == 0) { if (opcode == unify_atom_op) return a_uc(cip->cpc->rnd1, _unify_atom, _unify_atom_write, code_p, pass_no); else return a_c(cip->cpc->rnd1, _write_atom, code_p, pass_no); } else { if (opcode == unify_atom_op) return a_unc(cip->cpc->rnd1, _unify_n_atoms, _unify_n_atoms_write, i + 1, code_p, pass_no); else return a_nc(cip->cpc->rnd1, _write_n_atoms, i + 1, code_p, pass_no); } } #else *do_not_optimise_uatomp = FALSE; if (opcode == unify_atom_op) return a_uc(cip->cpc->rnd1, _unify_atom, _unify_atom_write, code_p); else return a_c(cip->cpc->rnd1, _write_atom, code_p); #endif } static yamop * a_uvar(yamop *code_p, int pass_no, struct intermediates *cip) { if (!is_void_var()) { #if AGGREGATE_OPS if (is_temp_var()) { PInstr *np = cip->cpc->nextInst; if (np->op == unify_var_op && is_atemp_var(np)) { return a_vv(_unify_x_var2, _unify_x_var2_write, code_p, pass_no, cip); } else if (np->op == unify_last_var_op && is_atemp_var(np)) { return a_vv(_unify_l_x_var2, _unify_l_x_var2_write, code_p, pass_no, cip); } } #endif /* AGGREGATE_OPS */ return a_uv((Ventry *) cip->cpc->rnd1, _unify_x_var, _unify_x_var_write, code_p, pass_no); } else { #if AGGREGATE_OPS int i = 1; PInstr *np = cip->cpc->nextInst; /* skip void vars */ while (np->op == unify_var_op && is_a_void(np->rnd1)) { i++; cip->cpc = np; np = np->nextInst; } if (np->op == unify_last_var_op && is_a_void(np->rnd1)) { if (i == 0) code_p = a_ue(_unify_l_void, _unify_l_void_write, code_p, pass_no); else code_p = a_un(_unify_l_n_voids, _unify_l_n_voids_write, i + 1, code_p, pass_no); cip->cpc = np; } else if (i == 1) return a_ue(_unify_void, _unify_void_write, code_p, pass_no); else { return a_un(_unify_n_voids, _unify_n_voids_write, i, code_p, pass_no); } #else return a_ue(_unify_void, _unify_void_write); #endif } return code_p; } static yamop * a_wvar(yamop *code_p, int pass_no, struct intermediates *cip) { if (!no_ref_var()) return a_v(_write_x_var, code_p, pass_no, cip->cpc); else { #if AGGREGATE_OPS int i = 0; PInstr *np = cip->cpc->nextInst; while (np->op == write_var_op && no_ref(np->rnd1)) { i++; cip->cpc = np; np = np->nextInst; } if (i == 0) return a_e(_write_void, code_p, pass_no); else { return a_n(_write_n_voids, i + 1, code_p, pass_no); } #else return a_e(_write_void, pass_no); #endif } } static yamop * a_glist(int *do_not_optimise_uatomp, yamop *code_p, int pass_no, struct intermediates *cip) { #if AGGREGATE_OPS PInstr *pnext = cip->cpc->nextInst; if (cip->cpc->rnd2 != 1 && pnext->op == unify_val_op) { Ventry *ve = (Ventry *) pnext->rnd1; int is_y_var; OPREG var_offset; pnext->rnd2 = cip->cpc->rnd2; cip->cpc = pnext; is_y_var = (ve->KindOfVE == PermVar); var_offset = Var_Ref(ve, is_y_var); return a_rv(_glist_valx, var_offset, code_p, pass_no, cip->cpc); } else if (cip->cpc->rnd2 == 1 && pnext->op == unify_atom_op) { *do_not_optimise_uatomp = TRUE; return a_r(cip->cpc->rnd2, _get_list, code_p, pass_no); } else if (cip->cpc->rnd2 != 1 && pnext->op == unify_var_op && is_a_void(pnext->rnd1)) { PInstr *ppnext = pnext->nextInst; if (ppnext && (ppnext->op == unify_last_var_op || ppnext->op == unify_last_val_op)) { Ventry *ve = (Ventry *) ppnext->rnd1; int is_y_var = (ve->KindOfVE == PermVar); OPREG var_offset; ppnext->rnd2 = cip->cpc->rnd2; cip->cpc = ppnext; var_offset = Var_Ref(ve, is_y_var); return a_rv((op_numbers)((int)_gl_void_varx + (cip->cpc->op == unify_last_var_op ? 0 : 2)), var_offset, code_p, pass_no, cip->cpc); } else { return a_r(cip->cpc->rnd2, _get_list, code_p, pass_no); } } else #endif /* AGGREGATE_OPS */ return a_r(cip->cpc->rnd2, _get_list, code_p, pass_no); } #define NEXTOPC (cip->cpc->nextInst)->op static yamop * a_deallocate(clause_info *clinfo, yamop *code_p, int pass_no, struct intermediates *cip) { if (clinfo->alloc_found == 2) { /* this should never happen */ if (clinfo->CurrentPred->PredFlags & LogUpdatePredFlag) code_p = a_cle(_alloc_for_logical_pred, code_p, pass_no, cip); code_p = a_e(_allocate, code_p, pass_no); } if (NEXTOPC == execute_op) { cip->cpc = cip->cpc->nextInst; code_p = a_p(_dexecute, clinfo, code_p, pass_no, cip); } else code_p = a_e(_deallocate, code_p, pass_no); clinfo->dealloc_found = TRUE; return code_p; } static yamop * a_bmap(yamop *code_p, int pass_no, struct PSEUDO *cpc) { /* how much space do we need to reserve */ int i, max = (cpc->rnd1)/(8*sizeof(CELL)); for (i = 0; i <= max; i++) code_p = fill_a(cpc->arnds[i], code_p, pass_no); return code_p; } static yamop * a_bregs(yamop *code_p, int pass_no, struct PSEUDO *cpc) { /* how much space do we need to reserve */ int i, max = (cpc->rnd1)/(8*sizeof(CELL)); code_p = fill_a(cpc->rnd1, code_p, pass_no); for (i = 0; i <= max; i++) code_p = fill_a(cpc->arnds[i], code_p, pass_no); return code_p; } static yamop * copy_blob(yamop *code_p, int pass_no, struct PSEUDO *cpc) { /* copy the blob to code space, making no effort to align if a double */ int max = cpc->rnd1, i; for (i = 0; i < max; i++) code_p = fill_a(cpc->arnds[i], code_p, pass_no); return code_p; } static void a_fetch_vv(cmp_op_info *cmp_info, int pass_no, struct intermediates *cip) { /* the next three instructions must be a get_val, get_val, and BIP */ if (pass_no == 0) { PInstr *p = cip->cpc->nextInst; Ventry *ve; ve = (Ventry *) p->rnd1; if (ve->KindOfVE != PermVar) p->op = nop_op; p = p->nextInst; ve = (Ventry *) p->rnd1; if (ve->KindOfVE != PermVar) p->op = nop_op; } else { PInstr *p = cip->cpc->nextInst; Ventry *ve; cmp_info->c_type = TYPE_XX; ve = (Ventry *) p->rnd1; if (ve->KindOfVE == PermVar) { /* don't get rid of get_val_op */ cmp_info->x1_arg = emit_x(p->rnd2); } else { /* and use it directly as a second argument */ cmp_info->x1_arg = emit_x(ve->NoOfVE & MaskVarAdrs); } p = p->nextInst; ve = (Ventry *) p->rnd1; if (ve->KindOfVE == PermVar) { /* don't get rid of get_val_op */ cmp_info->x2_arg = emit_x(p->rnd2); } else { /* and use it directly as a second argument */ cmp_info->x2_arg = emit_x(ve->NoOfVE & MaskVarAdrs); } } } static void a_fetch_vc(cmp_op_info *cmp_info, int pass_no, struct intermediates *cip) { /* the next two instructions must be a get_val and BIP */ if (pass_no == 0) { PInstr *p = cip->cpc->nextInst; Ventry *ve; ve = (Ventry *) p->rnd1; if (ve->KindOfVE != PermVar) p->op = nop_op; } else { PInstr *p = cip->cpc->nextInst; Ventry *ve; cmp_info->c_type = TYPE_XC; cmp_info->c_arg = (Int)(cip->cpc->rnd1); ve = (Ventry *) p->rnd1; if (ve->KindOfVE == PermVar) { /* don't get rid of get_val_op */ cmp_info->x1_arg = emit_x(p->rnd2); } else { /* and use it directly as a second argument */ cmp_info->x1_arg = emit_x(ve->NoOfVE & MaskVarAdrs); } } } static void a_fetch_cv(cmp_op_info *cmp_info, int pass_no, struct intermediates *cip) { /* the next two instructions must be a get_val and BIP */ if (pass_no == 0) { PInstr *p = cip->cpc->nextInst; Ventry *ve; ve = (Ventry *) p->rnd1; if (ve->KindOfVE != PermVar) p->op = nop_op; } else { PInstr *p = cip->cpc->nextInst; Ventry *ve; cmp_info->c_type = TYPE_CX; cmp_info->c_arg = (Int)(cip->cpc->rnd1); ve = (Ventry *) p->rnd1; if (ve->KindOfVE == PermVar) { /* don't get rid of get_val_op */ cmp_info->x1_arg = emit_x(p->rnd2); } else { /* and use it directly as a second argument */ cmp_info->x1_arg = emit_x(ve->NoOfVE & MaskVarAdrs); } } } static yamop * a_f2(int var, cmp_op_info *cmp_info, yamop *code_p, int pass_no, struct intermediates *cip) { Int opc = cip->cpc->rnd2; Ventry *ve = (Ventry *)(cip->cpc->rnd1); int is_y_var = (ve->KindOfVE == PermVar); if (opc <= _primitive) { if (is_y_var) { if (pass_no) { code_p->u.yF.y = emit_y(ve); switch (opc) { case _atom: code_p->opc = opcode(_p_atom_y); break; case _atomic: code_p->opc = opcode(_p_atomic_y); break; case _compound: code_p->opc = opcode(_p_compound_y); break; case _float: code_p->opc = opcode(_p_float_y); break; case _integer: code_p->opc = opcode(_p_integer_y); break; case _nonvar: code_p->opc = opcode(_p_nonvar_y); break; case _number: code_p->opc = opcode(_p_number_y); break; case _var: code_p->opc = opcode(_p_var_y); break; case _db_ref: code_p->opc = opcode(_p_db_ref_y); break; case _cut_by: code_p->opc = opcode(_p_cut_by_y); break; case _primitive: code_p->opc = opcode(_p_primitive_y); break; } if (cmp_info->cl_info->commit_lab) { code_p->u.yF.F = emit_a(Unsigned(cip->code_addr) + cip->label_offset[cmp_info->cl_info->commit_lab]); cmp_info->cl_info->commit_lab = 0; } else { code_p->u.yF.F = FAILCODE; } } GONEXT(yF); return code_p; } else { if (pass_no) { code_p->u.xF.x = emit_x(ve->NoOfVE & MaskVarAdrs); switch (opc) { case _atom: code_p->opc = opcode(_p_atom_x); break; case _atomic: code_p->opc = opcode(_p_atomic_x); break; case _compound: code_p->opc = opcode(_p_compound_x); break; case _float: code_p->opc = opcode(_p_float_x); break; case _integer: code_p->opc = opcode(_p_integer_x); break; case _nonvar: code_p->opc = opcode(_p_nonvar_x); break; case _number: code_p->opc = opcode(_p_number_x); break; case _var: code_p->opc = opcode(_p_var_x); break; case _db_ref: code_p->opc = opcode(_p_db_ref_x); break; case _cut_by: code_p->opc = opcode(_p_cut_by_x); break; case _primitive: code_p->opc = opcode(_p_primitive_x); break; } if (cmp_info->cl_info->commit_lab) { code_p->u.xF.F = emit_a(Unsigned(cip->code_addr) + cip->label_offset[cmp_info->cl_info->commit_lab]); cmp_info->cl_info->commit_lab = 0; } else { code_p->u.xF.F = FAILCODE; } } GONEXT(xF); return code_p; } } if (opc == _functor && cip->cpc->nextInst->op == f_var_op) { Ventry *nve; cip->cpc = cip->cpc->nextInst; nve = (Ventry *)(cip->cpc->rnd1); if (is_y_var) { if (nve->KindOfVE == PermVar) { if (pass_no) { code_p->opc = emit_op(_p_func2f_yy); code_p->u.yyx.y1 = emit_y(ve); code_p->u.yyx.y2 = emit_y(nve); code_p->u.yyx.x = cmp_info->x1_arg; } GONEXT(yyx); return code_p; } else { if (pass_no) { code_p->opc = emit_op(_p_func2f_yx); code_p->u.yxx.y = emit_y(ve); code_p->u.yxx.x1 = emit_x(nve->NoOfVE & MaskVarAdrs); code_p->u.yxx.x2 = cmp_info->x1_arg; } GONEXT(yxx); return code_p; } } else { if (nve->KindOfVE == PermVar) { if (pass_no) { code_p->opc = emit_op(_p_func2f_xy); code_p->u.xyx.x1 = emit_x(ve->NoOfVE & MaskVarAdrs); code_p->u.xyx.y2 = emit_y(nve); code_p->u.xyx.x = cmp_info->x1_arg; } GONEXT(xyx); return code_p; } else { if (pass_no) { code_p->opc = emit_op(_p_func2f_xx); code_p->u.xxx.x1 = emit_x(ve->NoOfVE & MaskVarAdrs); code_p->u.xxx.x2 = emit_x(nve->NoOfVE & MaskVarAdrs); code_p->u.xxx.x = cmp_info->x1_arg; } GONEXT(xxx); return code_p; } } } if (is_y_var) { switch (cmp_info->c_type) { case TYPE_XX: if (pass_no) { switch (opc) { case _plus: code_p->opc = emit_op(_p_plus_y_vv); break; case _minus: code_p->opc = emit_op(_p_minus_y_vv); break; case _times: code_p->opc = emit_op(_p_times_y_vv); break; case _div: code_p->opc = emit_op(_p_div_y_vv); break; case _and: code_p->opc = emit_op(_p_and_y_vv); break; case _or: code_p->opc = emit_op(_p_or_y_vv); break; case _sll: code_p->opc = emit_op(_p_sll_y_vv); break; case _slr: code_p->opc = emit_op(_p_slr_y_vv); break; case _arg: code_p->opc = emit_op(_p_arg_y_vv); break; case _functor: code_p->opc = emit_op(_p_func2s_y_vv); break; } code_p->u.yxx.y = emit_y(ve); code_p->u.yxx.x1 = cmp_info->x1_arg; code_p->u.yxx.x2 = cmp_info->x2_arg; } GONEXT(yxx); break; case TYPE_CX: if (pass_no) { switch (opc) { case _plus: Yap_Error(SYSTEM_ERROR, cmp_info->x1_arg, "internal assembler error CX for +/2"); save_machine_regs(); longjmp(cip->CompilerBotch, 1); break; case _minus: code_p->opc = emit_op(_p_minus_y_cv); break; case _times: Yap_Error(SYSTEM_ERROR, cmp_info->x1_arg, "internal assembler error CX for */2"); save_machine_regs(); longjmp(cip->CompilerBotch, 1); break; case _div: code_p->opc = emit_op(_p_div_y_cv); break; case _and: Yap_Error(SYSTEM_ERROR, cmp_info->x1_arg, "internal assembler error CX for /\\/2"); save_machine_regs(); longjmp(cip->CompilerBotch, 1); break; case _or: Yap_Error(SYSTEM_ERROR, cmp_info->x1_arg, "internal assembler error CX for \\//2"); save_machine_regs(); longjmp(cip->CompilerBotch, 1); break; case _sll: code_p->opc = emit_op(_p_sll_y_cv); save_machine_regs(); longjmp(cip->CompilerBotch, 1); break; case _slr: code_p->opc = emit_op(_p_slr_y_cv); save_machine_regs(); longjmp(cip->CompilerBotch, 1); break; case _arg: code_p->opc = emit_op(_p_arg_y_cv); break; case _functor: code_p->opc = emit_op(_p_func2s_y_cv); break; } code_p->u.ycx.y = emit_y(ve); code_p->u.ycx.c = cmp_info->c_arg; code_p->u.ycx.xi = cmp_info->x1_arg; } GONEXT(ycx); break; case TYPE_XC: if (pass_no) { switch (opc) { case _plus: code_p->opc = emit_op(_p_plus_y_vc); break; case _minus: Yap_Error(SYSTEM_ERROR, cmp_info->x2_arg, "internal assembler error XC for -/2"); save_machine_regs(); longjmp(cip->CompilerBotch, 1); break; case _times: code_p->opc = emit_op(_p_times_y_vc); break; case _div: code_p->opc = emit_op(_p_div_y_vc); break; case _and: code_p->opc = emit_op(_p_and_y_vc); break; case _or: code_p->opc = emit_op(_p_or_y_vc); break; case _sll: code_p->opc = emit_op(_p_sll_y_vc); break; case _slr: code_p->opc = emit_op(_p_slr_y_vc); break; case _arg: Yap_Error(SYSTEM_ERROR, cmp_info->x2_arg, "internal assembler error for arg/3"); save_machine_regs(); longjmp(cip->CompilerBotch, 1); break; case _functor: code_p->opc = emit_op(_p_func2s_y_vc); break; } code_p->u.yxc.y = emit_y(ve); code_p->u.yxc.c = cmp_info->c_arg; code_p->u.yxc.xi = cmp_info->x1_arg; } GONEXT(yxc); break; } } else { switch (cmp_info->c_type) { case TYPE_XX: if (pass_no) { switch (opc) { case _plus: code_p->opc = emit_op(_p_plus_vv); break; case _minus: code_p->opc = emit_op(_p_minus_vv); break; case _times: code_p->opc = emit_op(_p_times_vv); break; case _div: code_p->opc = emit_op(_p_div_vv); break; case _and: code_p->opc = emit_op(_p_and_vv); break; case _or: code_p->opc = emit_op(_p_or_vv); break; case _sll: code_p->opc = emit_op(_p_sll_vv); break; case _slr: code_p->opc = emit_op(_p_slr_vv); break; case _arg: code_p->opc = emit_op(_p_arg_vv); break; case _functor: code_p->opc = emit_op(_p_func2s_vv); break; } code_p->u.xxx.x = emit_x(ve->NoOfVE & MaskVarAdrs); code_p->u.xxx.x1 = cmp_info->x1_arg; code_p->u.xxx.x2 = cmp_info->x2_arg; } GONEXT(xxx); break; case TYPE_CX: if (pass_no) { switch (opc) { case _plus: Yap_Error(SYSTEM_ERROR, cmp_info->x1_arg, "internal assembler error CX for +/2"); save_machine_regs(); longjmp(cip->CompilerBotch, 1); break; case _minus: code_p->opc = emit_op(_p_minus_cv); break; case _times: Yap_Error(SYSTEM_ERROR, cmp_info->x1_arg, "internal assembler error CX for */2"); save_machine_regs(); longjmp(cip->CompilerBotch, 1); break; case _div: code_p->opc = emit_op(_p_div_cv); break; case _and: Yap_Error(SYSTEM_ERROR, cmp_info->x1_arg, "internal assembler error CX for /\\/2"); save_machine_regs(); longjmp(cip->CompilerBotch, 1); break; case _or: Yap_Error(SYSTEM_ERROR, cmp_info->x1_arg, "internal assembler error CX for \\//2"); save_machine_regs(); longjmp(cip->CompilerBotch, 1); break; case _sll: code_p->opc = emit_op(_p_sll_cv); break; case _slr: code_p->opc = emit_op(_p_slr_cv); break; case _arg: code_p->opc = emit_op(_p_arg_cv); break; case _functor: code_p->opc = emit_op(_p_func2s_cv); break; } code_p->u.xxc.x = emit_x(ve->NoOfVE & MaskVarAdrs); code_p->u.xxc.c = cmp_info->c_arg; code_p->u.xxc.xi = cmp_info->x1_arg; } GONEXT(xxc); break; case TYPE_XC: if (pass_no) { switch (opc) { case _plus: code_p->opc = emit_op(_p_plus_vc); break; case _minus: Yap_Error(SYSTEM_ERROR, cmp_info->x2_arg, "internal assembler error XC for -/2"); save_machine_regs(); longjmp(cip->CompilerBotch, 1); break; case _times: code_p->opc = emit_op(_p_times_vc); break; case _div: code_p->opc = emit_op(_p_div_vc); break; case _and: code_p->opc = emit_op(_p_and_vc); break; case _or: code_p->opc = emit_op(_p_or_vc); break; case _sll: code_p->opc = emit_op(_p_sll_vc); break; case _slr: code_p->opc = emit_op(_p_slr_vc); break; case _arg: Yap_Error(SYSTEM_ERROR, cmp_info->x2_arg, "internal assembler error for arg/3"); save_machine_regs(); longjmp(cip->CompilerBotch, 1); break; case _functor: code_p->opc = emit_op(_p_func2s_vc); break; } code_p->u.xcx.x = emit_x(ve->NoOfVE & MaskVarAdrs); code_p->u.xcx.c = cmp_info->c_arg; code_p->u.xcx.xi = cmp_info->x1_arg; } GONEXT(xcx); break; } } return code_p; } #define TRYOP(G,P) (IPredArity<5 ? (op_numbers)((int)(P)+(IPredArity*3)) : (G)) #ifdef YAPOR #define TRYCODE(G,P) a_try(TRYOP(G,P), Unsigned(cip->code_addr) + cip->label_offset[cip->cpc->rnd1], IPredArity, &clinfo, cip->cpc->rnd2 >> 1, cip->cpc->rnd2 & 1, code_p, pass_no) #define TABLE_TRYCODE(G) a_try(G, (CELL)emit_ilabel(cip->cpc->rnd1, code_addr, cip), IPredArity, cip->cpc->rnd2 >> 1, cip->cpc->rnd2 & 1, code_p, pass_no) #else #define TRYCODE(G,P) a_try(TRYOP(G,P), Unsigned(cip->code_addr) + cip->label_offset[cip->cpc->rnd1], IPredArity, &clinfo, code_p, pass_no) #define TABLE_TRYCODE(G) a_try(G, (CELL)emit_ilabel(cip->cpc->rnd1, code_addr, cip), IPredArity, code_p, pass_no) #endif /* YAPOR */ static yamop * do_pass(int pass_no, yamop **entry_codep, int assembling, int *clause_has_blobsp, struct intermediates *cip, UInt size) { #ifdef YAPOR #define EITHER_INST 50 yamop *either_inst[EITHER_INST]; int either_cont = 0; #endif /* YAPOR */ int log_update; int dynamic; #ifdef TABLING int tabled; #endif int ystop_found = FALSE; union clause_obj *cl_u; yamop *code_p; cmp_op_info cmp_info; clause_info clinfo; int do_not_optimise_uatom; code_p = cip->code_addr; cl_u = (union clause_obj *)code_p; cip->cpc = cip->CodeStart; clinfo.alloc_found = clinfo.dealloc_found = FALSE; clinfo.commit_lab = 0L; clinfo.CurrentPred = cip->CurrentPred; cmp_info.c_type = TYPE_XX; cmp_info.cl_info = &clinfo; do_not_optimise_uatom = FALSE; /* Space while for the clause flags */ log_update = cip->CurrentPred->PredFlags & LogUpdatePredFlag; dynamic = cip->CurrentPred->PredFlags & DynamicPredFlag; #ifdef TABLING tabled = cip->CurrentPred->PredFlags & TabledPredFlag; #endif if (assembling == ASSEMBLING_CLAUSE) { if (log_update) { if (pass_no) { cl_u->luc.Id = FunctorDBRef; cl_u->luc.ClFlags = LogUpdMask; cl_u->luc.ClRefCount = 0; cl_u->luc.ClPred = cip->CurrentPred; cl_u->luc.ClSize = size; if (*clause_has_blobsp) { cl_u->luc.ClFlags |= HasBlobsMask; } cl_u->luc.ClExt = NULL; cl_u->luc.ClPrev = cl_u->luc.ClNext = NULL; #if defined(YAPOR) || defined(THREADS) INIT_LOCK(cl_u->luc.ClLock); INIT_CLREF_COUNT(&(cl_u->luc)); #endif } code_p = cl_u->luc.ClCode; } else if (dynamic) { if (pass_no) { cl_u->ic.ClFlags = DynamicMask; if (*clause_has_blobsp) { cl_u->ic.ClFlags |= HasBlobsMask; } cl_u->ic.ClSize = size; cl_u->ic.ClRefCount = 0; #if defined(YAPOR) || defined(THREADS) INIT_LOCK(cl_u->ic.ClLock); INIT_CLREF_COUNT(&(cl_u->ic)); #endif } code_p = cl_u->ic.ClCode; } else { /* static clause */ if (pass_no) { cl_u->sc.ClFlags = StaticMask; cl_u->sc.ClNext = NULL; cl_u->sc.ClSize = size; if (*clause_has_blobsp) { cl_u->sc.ClFlags |= HasBlobsMask; } } code_p = cl_u->sc.ClCode; } IPredArity = cip->cpc->rnd2; /* number of args */ *entry_codep = code_p; if (dynamic) { #ifdef YAPOR a_try(TRYOP(_try_me, _try_me0), 0, IPredArity, &clinfo, 1, 0, code_p, pass_no); #else a_try(TRYOP(_try_me, _try_me0), 0, IPredArity, &clinfo, code_p, pass_no); #endif /* YAPOR */ } } else { /* index code */ if (log_update) { if (pass_no) { cl_u->lui.ClFlags = LogUpdMask|IndexedPredFlag|IndexMask|SwitchRootMask; cl_u->lui.ChildIndex = NULL; cl_u->lui.SiblingIndex = NULL; cl_u->lui.u.pred = cip->CurrentPred; cl_u->lui.ClSize = size; cl_u->lui.ClRefCount = 0; INIT_LOCK(cl_u->lui.ClLock); #if defined(YAPOR) || defined(THREADS) INIT_CLREF_COUNT(&(cl_u->lui)); #endif } code_p = cl_u->lui.ClCode; *entry_codep = code_p; #if defined(YAPOR) || defined(THREADS) if (assembling == ASSEMBLING_INDEX && !(cip->CurrentPred->PredFlags & ThreadLocalPredFlag)) { if (pass_no) { code_p->opc = opcode(_lock_lu); code_p->u.p.p = cip->CurrentPred; } GONEXT(p); } #endif } else { if (pass_no) { cl_u->si.ClSize = size; cl_u->si.ClFlags = IndexMask; cl_u->si.ChildIndex = NULL; cl_u->si.SiblingIndex = NULL; } code_p = cl_u->si.ClCode; *entry_codep = code_p; } } while (cip->cpc) { switch ((int) cip->cpc->op) { #ifdef YAPOR case sync_op: code_p = a_try(_sync, cip->cpc->rnd1, cip->cpc->rnd2, 1, Zero, code_p); break; #endif /* YAPOR */ #ifdef TABLING case table_new_answer_op: code_p = a_n(_table_new_answer, (int) cip->cpc->rnd2, code_p); break; case table_try_single_op: code_p = a_gl(_table_try_single, code_p, clinfo, code_p, pass_no, cpc); break; #endif /* TABLING */ #ifdef TABLING_INNER_CUTS case clause_with_cut_op: code_p = a_e(_clause_with_cut, code_p); break; #endif /* TABLING_INNER_CUTS */ #ifdef SFUNC case get_s_f_op: code_p = a_rf(_get_s_f, code_p, cip->cpc); break; case put_s_f_op: code_p = a_rf(_put_s_f, code_p, cip->cpc); break; case unify_s_f_op: code_p = a_d(_unify_s_f, code_p); break; case write_s_f_op: code_p = a_f(cip->cpc->rnd1, _write_s_f); break; case unify_s_var_op: code_p = a_vsf(_unify_s_xvar); break; case write_s_var_op: code_p = a_vsf(_write_s_xvar); break; case unify_s_val_op: code_p = a_vsf(_unify_s_xval); break; case write_s_val_op: code_p = a_vsf(_write_s_xval); break; case unify_s_a_op: code_p = a_asf(_unify_s_a); break; case write_s_a_op: code_p = a_asf(_write_s_a); break; case get_s_end_op: code_p = a_n(_get_s_end, Unsigned(0)); break; case put_s_end_op: code_p = a_n(_put_s_end, Unsigned(0)); break; case unify_s_end_op: code_p = a_n(_write_s_end, Unsigned(0)); break; case write_s_end_op: code_p = a_n(_write_s_end, Unsigned(0)); break; #endif case get_var_op: code_p = a_vr(_get_x_var, code_p, pass_no, cip->cpc); break; case put_var_op: code_p = a_vr(_put_x_var, code_p, pass_no, cip->cpc); break; case get_val_op: code_p = a_vr(_get_x_val, code_p, pass_no, cip->cpc); break; case put_val_op: code_p = a_vr(_put_x_val, code_p, pass_no, cip->cpc); break; case get_num_op: case get_atom_op: code_p = a_rc(_get_atom, code_p, pass_no, cip); break; case get_float_op: code_p = a_rb(_get_float, clause_has_blobsp, code_p, pass_no, cip); break; case get_longint_op: code_p = a_rb(_get_longint, clause_has_blobsp, code_p, pass_no, cip); break; case get_bigint_op: code_p = a_rb(_get_bigint, clause_has_blobsp, code_p, pass_no, cip); break; case put_num_op: case put_atom_op: code_p = a_rc(_put_atom, code_p, pass_no, cip); break; case put_float_op: case put_longint_op: case put_bigint_op: code_p = a_rb(_put_atom, clause_has_blobsp, code_p, pass_no, cip); break; case get_list_op: code_p = a_glist(&do_not_optimise_uatom, code_p, pass_no, cip); break; case put_list_op: code_p = a_r(cip->cpc->rnd2, _put_list, code_p, pass_no); break; case get_struct_op: code_p = a_rf(_get_struct, code_p, pass_no, cip->cpc); break; case put_struct_op: code_p = a_rf(_put_struct, code_p, pass_no, cip->cpc); break; case put_unsafe_op: code_p = a_vr((op_numbers)((int)_put_unsafe - 1), code_p, pass_no, cip->cpc); break; case unify_var_op: code_p = a_uvar(code_p, pass_no, cip); break; case unify_last_var_op: code_p = a_uv((Ventry *) cip->cpc->rnd1, _unify_l_x_var, _unify_l_x_var_write, code_p, pass_no); break; case write_var_op: code_p = a_wvar(code_p, pass_no, cip); break; case unify_local_op: code_p = a_uv((Ventry *) cip->cpc->rnd1, _unify_x_loc, _unify_x_loc_write, code_p, pass_no); break; case unify_val_op: code_p = a_uv((Ventry *) cip->cpc->rnd1, _unify_x_val, _unify_x_val_write, code_p, pass_no); break; case unify_last_local_op: code_p = a_uv((Ventry *) cip->cpc->rnd1, _unify_l_x_loc, _unify_l_x_loc_write, code_p, pass_no); break; case unify_last_val_op: code_p = a_uv((Ventry *) cip->cpc->rnd1, _unify_l_x_val, _unify_l_x_val_write, code_p, pass_no); break; case write_local_op: code_p = a_v(_write_x_loc, code_p, pass_no, cip->cpc); break; case write_val_op: code_p = a_v(_write_x_val, code_p, pass_no, cip->cpc); break; case unify_num_op: case unify_atom_op: code_p = a_ucons(&do_not_optimise_uatom, unify_atom_op, code_p, pass_no, cip); break; case unify_float_op: code_p = a_ublob(cip->cpc->rnd1, _unify_float, _unify_atom_write, clause_has_blobsp, code_p, pass_no, cip); break; case unify_longint_op: code_p = a_ublob(cip->cpc->rnd1, _unify_longint, _unify_atom_write, clause_has_blobsp, code_p, pass_no, cip); break; case unify_bigint_op: code_p = a_ublob(cip->cpc->rnd1, _unify_bigint, _unify_atom_write, clause_has_blobsp, code_p, pass_no, cip); break; case unify_last_num_op: case unify_last_atom_op: code_p = a_uc(cip->cpc->rnd1, _unify_l_atom, _unify_l_atom_write, code_p, pass_no); break; case unify_last_float_op: code_p = a_ublob(cip->cpc->rnd1, _unify_l_float, _unify_l_atom_write, clause_has_blobsp, code_p, pass_no, cip); break; case unify_last_longint_op: code_p = a_ublob(cip->cpc->rnd1, _unify_l_longint, _unify_l_atom_write, clause_has_blobsp, code_p, pass_no, cip); break; case unify_last_bigint_op: code_p = a_ublob(cip->cpc->rnd1, _unify_l_bigint, _unify_l_atom_write, clause_has_blobsp, code_p, pass_no, cip); break; case write_num_op: case write_atom_op: code_p = a_ucons(&do_not_optimise_uatom, write_atom_op, code_p, pass_no, cip); break; case write_float_op: case write_longint_op: case write_bigint_op: code_p = a_blob(cip->cpc->rnd1, _write_atom, clause_has_blobsp, code_p, pass_no, cip); break; case unify_list_op: code_p = a_ue(_unify_list, _unify_list_write, code_p, pass_no); break; case unify_last_list_op: code_p = a_ue(_unify_l_list, _unify_l_list_write, code_p, pass_no); break; case write_list_op: code_p = a_e(_write_list, code_p, pass_no); break; case write_last_list_op: code_p = a_e(_write_l_list, code_p, pass_no); break; case unify_struct_op: code_p = a_uf(cip->cpc->rnd1, _unify_struct, _unify_struct_write, code_p, pass_no); break; case unify_last_struct_op: code_p = a_uf(cip->cpc->rnd1, _unify_l_struc, _unify_l_struc_write, code_p, pass_no); break; case write_struct_op: code_p = a_f(cip->cpc->rnd1, _write_struct, code_p, pass_no); break; case write_last_struct_op: code_p = a_f(cip->cpc->rnd1, _write_l_struc, code_p, pass_no); break; case save_b_op: case patch_b_op: code_p = a_v(_save_b_x, code_p, pass_no, cip->cpc); break; case commit_b_op: code_p = a_v(_commit_b_x, code_p, pass_no, cip->cpc); #ifdef YAPOR if (pass_no) PUT_YAMOP_CUT(*entry_codep); #endif /* YAPOR */ break; case save_pair_op: code_p = a_uv((Ventry *) cip->cpc->rnd1, _save_pair_x, _save_pair_x_write, code_p, pass_no); break; case save_appl_op: code_p = a_uv((Ventry *) cip->cpc->rnd1, _save_appl_x, _save_appl_x_write, code_p, pass_no); break; case fail_op: code_p = a_e(_op_fail, code_p, pass_no); break; case cut_op: code_p = a_cut(&clinfo, code_p, pass_no, cip); #ifdef YAPOR if (pass_no) PUT_YAMOP_CUT(*entry_codep); #endif /* YAPOR */ break; case cutexit_op: code_p = a_cut(&clinfo, code_p, pass_no, cip); if (cip->CurrentPred->PredFlags & LogUpdatePredFlag && *clause_has_blobsp && !clinfo.alloc_found) code_p = a_cle(_alloc_for_logical_pred, code_p, pass_no, cip); #if THREADS else if (cip->CurrentPred->PredFlags & LogUpdatePredFlag && !(cip->CurrentPred->PredFlags & ThreadLocalPredFlag)) code_p = a_e(_unlock_lu, code_p, pass_no); #endif code_p = a_e(_procceed, code_p, pass_no); #ifdef YAPOR if (pass_no) PUT_YAMOP_CUT(*entry_codep); #endif /* YAPOR */ break; case allocate_op: clinfo.alloc_found = 2; break; case deallocate_op: code_p = a_deallocate(&clinfo, code_p, pass_no, cip); break; case tryme_op: #ifdef TABLING if (tabled) code_p = TABLE_TRYCODE(_table_try_me); else #endif code_p = TRYCODE(_try_me, _try_me0); break; case retryme_op: #ifdef TABLING if (tabled) code_p = TABLE_TRYCODE(_table_retry_me); else #endif code_p = TRYCODE(_retry_me, _retry_me0); break; case trustme_op: if (log_update && (assembling == ASSEMBLING_INDEX || assembling == ASSEMBLING_EINDEX)) { code_p = a_cl(_trust_logical_pred, code_p, pass_no, cip); } #ifdef TABLING if (tabled) code_p = TABLE_TRYCODE(_table_trust_me); else #endif code_p = TRYCODE(_trust_me, _trust_me0); break; case enter_lu_op: code_p = a_lucl(_enter_lu_pred, code_p, pass_no, cip); break; case try_op: #ifdef TABLING if (tabled) code_p = a_gl(_table_try, &clinfo, code_p, pass_no, cip->cpc); else #endif code_p = a_gl(_try_clause, &clinfo, code_p, pass_no, cip->cpc); break; case retry_op: if (log_update) { add_clref(cip->cpc->rnd1, pass_no); } #ifdef TABLING if (tabled) code_p = a_gl(_table_retry, &clinfo, code_p, pass_no, cip->cpc); else #endif code_p = a_gl(_retry, &clinfo, code_p, pass_no, cip->cpc); break; case trust_op: if (log_update) { add_clref(cip->cpc->rnd1, pass_no); code_p = a_cl(_trust_logical_pred, code_p, pass_no, cip); } #ifdef TABLING if (tabled) code_p = a_gl(_table_trust, &clinfo, code_p, pass_no, cpc); else #endif code_p = a_gl(_trust, &clinfo, code_p, pass_no, cip->cpc); break; case try_in_op: code_p = a_il(cip->cpc->rnd1, _try_in, code_p, pass_no, cip); break; case jump_op: /* don't assemble jumps to next instruction */ if (cip->cpc->nextInst == NULL || cip->cpc->nextInst->op != label_op || cip->cpc->rnd1 != cip->cpc->nextInst->rnd1) { code_p = a_l(cip->cpc->rnd1, _jump, code_p, pass_no, cip); } break; case jumpi_op: code_p = a_il(cip->cpc->rnd1, _jump, code_p, pass_no, cip); break; case restore_tmps_op: code_p = a_l(cip->cpc->rnd1, _move_back, code_p, pass_no, cip); break; case restore_tmps_and_skip_op: code_p = a_l(cip->cpc->rnd1, _skip, code_p, pass_no, cip); break; case procceed_op: if (cip->CurrentPred->PredFlags & LogUpdatePredFlag && *clause_has_blobsp && !clinfo.alloc_found) code_p = a_cle(_alloc_for_logical_pred, code_p, pass_no, cip); #if THREADS else if (cip->CurrentPred->PredFlags & LogUpdatePredFlag && !(cip->CurrentPred->PredFlags & ThreadLocalPredFlag)) code_p = a_e(_unlock_lu, code_p, pass_no); #endif code_p = a_e(_procceed, code_p, pass_no); break; case call_op: code_p = a_p(_call, &clinfo, code_p, pass_no, cip); break; case execute_op: #if THREADS if (cip->CurrentPred->PredFlags & LogUpdatePredFlag && !(cip->CurrentPred->PredFlags & ThreadLocalPredFlag)) code_p = a_e(_unlock_lu, code_p, pass_no); #endif code_p = a_p(_execute, &clinfo, code_p, pass_no, cip); break; case safe_call_op: code_p = a_p(_call, &clinfo, code_p, pass_no, cip); break; case label_op: if (!ystop_found && cip->cpc->nextInst != NULL && (cip->cpc->nextInst->op == mark_initialised_pvars_op || cip->cpc->nextInst->op == blob_op)) { ystop_found = TRUE; code_p = a_e(_Ystop, code_p, pass_no); } if (!pass_no) { if (CellPtr(cip->label_offset+cip->cpc->rnd1) > ASP-256) { Yap_Error_Size = 256+((char *)(cip->label_offset+cip->cpc->rnd1) - (char *)H); save_machine_regs(); longjmp(cip->CompilerBotch, 3); } if ( (char *)(cip->label_offset+cip->cpc->rnd1) >= cip->freep) cip->freep = (char *)(cip->label_offset+(cip->cpc->rnd1+1)); cip->label_offset[cip->cpc->rnd1] = (CELL) code_p; } /* reset dealloc_found in case there was a branch */ clinfo.dealloc_found = FALSE; break; case pop_op: if (cip->cpc->rnd1 == 1) code_p = a_e(_pop, code_p, pass_no); else { code_p = a_n(_pop_n, 2 * CELLSIZE * (cip->cpc->rnd1 - 1), code_p, pass_no); } break; case either_op: code_p = check_alloc(&clinfo, code_p, pass_no, cip); #ifdef YAPOR if (pass_no) either_inst[either_cont++] = code_p; code_p = a_either(_either, -Signed(RealEnvSize) - CELLSIZE * cip->cpc->rnd2, Unsigned(cip->code_addr) + cip->label_offset[cip->cpc->rnd1], 0, 0, code_p, pass_no, cip); #else code_p = a_either(_either, -Signed(RealEnvSize) - CELLSIZE * cip->cpc->rnd2, Unsigned(cip->code_addr) + cip->label_offset[cip->cpc->rnd1], code_p, pass_no, cip); #endif /* YAPOR */ break; case orelse_op: #ifdef YAPOR if (pass_no) either_inst[either_cont++] = code_p; code_p = a_either(_or_else, -Signed(RealEnvSize) - CELLSIZE * cip->cpc->rnd2, Unsigned(cip->code_addr) + cip->label_offset[cip->cpc->rnd1], 0, 0, code_p, pass_no, cip); #else code_p = a_either(_or_else, -Signed(RealEnvSize) - CELLSIZE * cip->cpc->rnd2, Unsigned(cip->code_addr) + cip->label_offset[cip->cpc->rnd1], code_p, pass_no, cip); #endif /* YAPOR */ clinfo.dealloc_found = FALSE; break; case orlast_op: #ifdef YAPOR if (pass_no) either_inst[either_cont++] = code_p; code_p = a_either(_or_last, 0, 0, 0, 0, code_p, pass_no, cpc); if (pass_no) { int cont = 1; do { either_cont--; PUT_YAMOP_LTT(either_inst[either_cont], cont++); } while (either_inst[either_cont]->opc != opcode(_either)); } #else code_p = a_pl(_or_last, cip->CurrentPred, code_p, pass_no); #endif /* YAPOR */ clinfo.dealloc_found = FALSE; break; case cache_arg_op: code_p = a_4sw_x(_switch_on_arg_type, code_p, pass_no, cip); break; case cache_sub_arg_op: code_p = a_4sw_s(_switch_on_sub_arg_type, code_p, pass_no, cip); break; case jump_v_op: code_p = a_igl(cip->cpc->rnd1, _jump_if_var, code_p, pass_no, cip); break; case jump_nv_op: code_p = a_xigl(_jump_if_nonvar, code_p, pass_no, cip->cpc); break; case switch_on_type_op: code_p = a_4sw(_switch_on_type, code_p, pass_no, cip); break; case switch_c_op: code_p = a_hx(_switch_on_cons, cl_u, log_update, code_p, pass_no, cip); break; case switch_f_op: code_p = a_hx(_switch_on_func, cl_u, log_update, code_p, pass_no, cip); break; case if_c_op: if (cip->cpc->rnd1 == 1) { code_p = a_if(_go_on_cons, cl_u, log_update, code_p, pass_no, cip); } else { code_p = a_if(_if_cons, cl_u, log_update, code_p, pass_no, cip); } break; case if_f_op: if (cip->cpc->rnd1 == 1) { code_p = a_if(_go_on_func, cl_u, log_update, code_p, pass_no, cip); } else { code_p = a_if(_if_func, cl_u, log_update, code_p, pass_no, cip); } break; case if_not_op: code_p = a_ifnot(_if_not_then, code_p, pass_no, cip); break; case index_dbref_op: code_p = a_e(_index_dbref, code_p, pass_no); break; case index_blob_op: code_p = a_e(_index_blob, code_p, pass_no); break; case mark_initialised_pvars_op: code_p = a_bmap(code_p, pass_no, cip->cpc); break; case mark_live_regs_op: code_p = a_bregs(code_p, pass_no, cip->cpc); break; case commit_opt_op: clinfo.commit_lab = cip->cpc->rnd1; break; case fetch_args_vv_op: a_fetch_vv(&cmp_info, pass_no, cip); break; case fetch_args_vc_op: a_fetch_vc(&cmp_info, pass_no, cip); break; case fetch_args_cv_op: a_fetch_cv(&cmp_info, pass_no, cip); break; case f_val_op: code_p = a_f2(FALSE, &cmp_info, code_p, pass_no, cip); break; case f_var_op: code_p = a_f2(TRUE, &cmp_info, code_p, pass_no, cip); break; case enter_profiling_op: code_p = a_pl(_enter_profiling, (PredEntry *)(cip->cpc->rnd1), code_p, pass_no); break; case retry_profiled_op: code_p = a_pl(_retry_profiled, (PredEntry *)(cip->cpc->rnd1), code_p, pass_no); break; case count_call_op: code_p = a_pl(_count_call, (PredEntry *)(cip->cpc->rnd1), code_p, pass_no); break; case count_retry_op: code_p = a_pl(_count_retry, (PredEntry *)(cip->cpc->rnd1), code_p, pass_no); break; case fetch_args_for_bccall: if (cip->cpc->nextInst->op != bccall_op) { Yap_Error(SYSTEM_ERROR, TermNil, "compiling binary test", (int) cip->cpc->op); save_machine_regs(); longjmp(cip->CompilerBotch, 1); } code_p = a_bfunc(cip->cpc->nextInst->rnd2, &clinfo, code_p, pass_no, cip); break; case align_float_op: /* install a blob */ #if SIZEOF_DOUBLE == 2*SIZEOF_LONG_INT if (!((CELL)code_p & 0x4)) GONEXT(e); #endif break; case blob_op: /* install a blob */ code_p = copy_blob(code_p, pass_no, cip->cpc); break; case empty_call_op: /* create an empty call */ code_p = a_empty_call(&clinfo, code_p, pass_no, cip); break; case push_or_op: /* be sure to allocate if we have an ;, even if it is compiled inline. */ code_p = check_alloc(&clinfo, code_p, pass_no, cip); case pushpop_or_op: case pop_or_op: case nop_op: case name_op: break; default: Yap_Error(SYSTEM_ERROR, TermNil, "instruction %d found while assembling", (int) cip->cpc->op); save_machine_regs(); longjmp(cip->CompilerBotch, 1); } cip->cpc = cip->cpc->nextInst; } if (!ystop_found) code_p = a_e(_Ystop, code_p, pass_no); return code_p; } static DBTerm * fetch_clause_space(Term* tp, UInt size, struct intermediates *cip) { CELL *h0 = H; DBTerm *x; /* This stuff should be just about fetching the space from the data-base, unfortunately we have to do all sorts of error handling :-( */ H = (CELL *)cip->freep; while ((x = Yap_StoreTermInDBPlusExtraSpace(*tp, size)) == NULL) { H = h0; switch (Yap_Error_TYPE) { case OUT_OF_STACK_ERROR: Yap_Error_Size = 256+((char *)cip->freep - (char *)H); save_machine_regs(); longjmp(cip->CompilerBotch,3); case OUT_OF_TRAIL_ERROR: /* don't just return NULL */ ARG1 = *tp; if (!Yap_growtrail(64 * 1024L)) { return NULL; } Yap_Error_TYPE = YAP_NO_ERROR; *tp = ARG1; break; case OUT_OF_AUXSPACE_ERROR: ARG1 = *tp; if (!Yap_ExpandPreAllocCodeSpace(Yap_Error_Size, (void *)cip)) { return NULL; } Yap_Error_TYPE = YAP_NO_ERROR; *tp = ARG1; break; case OUT_OF_HEAP_ERROR: /* don't just return NULL */ ARG1 = *tp; if (!Yap_growheap(TRUE, size, cip)) { return NULL; } Yap_Error_TYPE = YAP_NO_ERROR; *tp = ARG1; break; default: return NULL; } h0 = H; H = (CELL *)cip->freep; } H = h0; return x; } yamop * Yap_assemble(int mode, Term t, PredEntry *ap, int is_fact, struct intermediates *cip) { /* * the assembly proccess is done in two passes: 1 - a first pass * computes labels offsets and total code size 2 - the second pass * produces the final version of the code */ UInt size = 0; yamop *entry_code; yamop *code_p; int clause_has_blobs = FALSE; cip->label_offset = (int *)cip->freep; cip->code_addr = NULL; code_p = do_pass(0, &entry_code, mode, &clause_has_blobs, cip, size); if (ap->PredFlags & DynamicPredFlag) { size = (CELL)NEXTOP(NEXTOP(NEXTOP((yamop *)(((DynamicClause *)NULL)->ClCode),ld),sla),e); } if ((CELL)code_p > size) size = (CELL)code_p; if (mode == ASSEMBLING_CLAUSE && ap->PredFlags & LogUpdatePredFlag && !is_fact) { DBTerm *x; LogUpdClause *cl; if(!(x = fetch_clause_space(&t,size,cip))){ return NULL; } cl = (LogUpdClause *)((CODEADDR)x-(UInt)size); cl->ClSource = x; cip->code_addr = (yamop *)cl; } else if (mode == ASSEMBLING_CLAUSE && (ap->PredFlags & SourcePredFlag || yap_flags[SOURCE_MODE_FLAG]) && !is_fact) { DBTerm *x; StaticClause *cl; if(!(x = fetch_clause_space(&t,size,cip))) { return NULL; } cl = (StaticClause *)((CODEADDR)x-(UInt)size); cip->code_addr = (yamop *)cl; code_p = do_pass(1, &entry_code, mode, &clause_has_blobs, cip, size); /* make sure we copy after second pass */ cl->usc.ClSource = x; ProfEnd=code_p; return entry_code; } else { while ((cip->code_addr = (yamop *) Yap_AllocCodeSpace(size)) == NULL) { if (!Yap_growheap(TRUE, size, cip)) { Yap_Error_TYPE = OUT_OF_HEAP_ERROR; Yap_Error_Size = size; return NULL; } } } code_p = do_pass(1, &entry_code, mode, &clause_has_blobs, cip, size); ProfEnd=code_p; return entry_code; } void Yap_InitComma(void) { yamop *code_p = COMMA_CODE; code_p->opc = opcode(_call); code_p->u.sla.s = emit_count(-Signed(RealEnvSize) - sizeof(CELL) * 3); code_p->u.sla.sla_u.p = code_p->u.sla.p0 = RepPredProp(PredPropByFunc(FunctorComma,0)); code_p->u.sla.bmap = NULL; GONEXT(sla); if (PRED_GOAL_EXPANSION_ON) { Functor fp = Yap_MkFunctor(Yap_FullLookupAtom("$generate_pred_info"),4); code_p->opc = emit_op(_call_cpred); code_p->u.sla.s = emit_count(-Signed(RealEnvSize)); code_p->u.sla.sla_u.p = RepPredProp(Yap_GetPredPropByFunc(fp,0)); code_p->u.sla.bmap = NULL; GONEXT(sla); code_p->opc = emit_op(_call); code_p->u.sla.s = emit_count(-Signed(RealEnvSize)); code_p->u.sla.sla_u.p = PredMetaCall; code_p->u.sla.bmap = NULL; GONEXT(sla); code_p->opc = emit_op(_deallocate); GONEXT(e); code_p->opc = emit_op(_procceed); GONEXT(e); } else { if (PROFILING) { code_p->opc = opcode(_enter_a_profiling); GONEXT(e); } if (CALL_COUNTING) { code_p->opc = opcode(_count_a_call); GONEXT(e); } code_p->opc = opcode(_p_execute_tail); code_p->u.sla.s = emit_count(-Signed(RealEnvSize)-3*sizeof(CELL)); code_p->u.sla.bmap = NULL; code_p->u.sla.sla_u.p = code_p->u.sla.p0 = RepPredProp(PredPropByFunc(FunctorComma,0)); GONEXT(sla); } }