void tcg_add_target_add_op_defs(const TCGTargetOpDef *tdefs) { TCGOpcode op; TCGOpDef *def; const char *ct_str; int i, nb_args; for(;;) { if (tdefs->op == (TCGOpcode)-1) break; op = tdefs->op; assert((unsigned)op < NB_OPS); def = &tcg_op_defs[op]; #if defined(CONFIG_DEBUG_TCG) /* Duplicate entry in op definitions? */ assert(!def->used); def->used = 1; #endif nb_args = def->nb_iargs + def->nb_oargs; for(i = 0; i < nb_args; i++) { ct_str = tdefs->args_ct_str[i]; /* Incomplete TCGTargetOpDef entry? */ assert(ct_str != NULL); tcg_regset_clear(def->args_ct[i].u.regs); def->args_ct[i].ct = 0; if (ct_str[0] >= '0' && ct_str[0] <= '9') { int oarg; oarg = ct_str[0] - '0'; assert(oarg < def->nb_oargs); assert(def->args_ct[oarg].ct & TCG_CT_REG); /* TCG_CT_ALIAS is for the output arguments. The input argument is tagged with TCG_CT_IALIAS. */ def->args_ct[i] = def->args_ct[oarg]; def->args_ct[oarg].ct = TCG_CT_ALIAS; def->args_ct[oarg].alias_index = i; def->args_ct[i].ct |= TCG_CT_IALIAS; def->args_ct[i].alias_index = oarg; } else { for(;;) { if (*ct_str == '\0') break; switch(*ct_str) { case 'i': def->args_ct[i].ct |= TCG_CT_CONST; ct_str++; break; default: if (target_parse_constraint(&def->args_ct[i], &ct_str) < 0) { fprintf(stderr, "Invalid constraint '%s' for arg %d of operation '%s'\n", ct_str, i, def->name); exit(1); } } } } } /* TCGTargetOpDef entry with too much information? */ assert(i == TCG_MAX_OP_ARGS || tdefs->args_ct_str[i] == NULL); /* sort the constraints (XXX: this is just an heuristic) */ sort_constraints(def, 0, def->nb_oargs); sort_constraints(def, def->nb_oargs, def->nb_iargs); #if 0 { int i; printf("%s: sorted=", def->name); for(i = 0; i < def->nb_oargs + def->nb_iargs; i++) printf(" %d", def->sorted_args[i]); printf("\n"); } #endif tdefs++; } #if defined(CONFIG_DEBUG_TCG) i = 0; for (op = 0; op < tcg_op_defs_max; op++) { const TCGOpDef *def = &tcg_op_defs[op]; if (def->flags & TCG_OPF_NOT_PRESENT) { /* Wrong entry in op definitions? */ if (def->used) { fprintf(stderr, "Invalid op definition for %s\n", def->name); i = 1; } } else { /* Missing entry in op definitions? */ if (!def->used) { fprintf(stderr, "Missing op definition for %s\n", def->name); i = 1; } } } if (i == 1) { tcg_abort(); } #endif }