void do_compile_job() { int mode; char input_name[1024]; printf("Input your source file path:\n"); scanf("%s", input_name); in = fopen(input_name, "r"); printf("Input mode number:\n"); printf("0 for bare running!\n"); printf("1 to find local common subexpressions!\n"); printf("2 to do temporary register allocation!\n"); printf("3 to do live variable analysis!\n"); scanf("%d", &mode); ////////////////////////////////////////////////////////////////////////// get_token_with_history(); parse_program(); printf("**** quadruples before optimization ****\n"); print_quadruples(); ////////////////////////////////////////////////////////////////////////// switch (mode) { case 0: gen_asm(); break; case 1: gen_dag(); printf("generated quadruples ****\n"); print_quadruples(); gen_asm(); break; case 2: gen_asm_with_temp_reg_all(); break; case 3: live_var_analysis(); break; default: printf("Mode not accepted!\n"); break; } printf("Compile successful!\n"); printf("Filed stored to %s!\n", asm_path); fclose(stdout); }
void genstmt(STATEMENT *stmt, SYMBOL *funcsp) /* * genstmt will generate a statement and follow the next pointer * until the block is generated. */ { while (stmt != 0) { switch (stmt->type) { case st_varstart: gen_varstart(stmt->select); break; case st_dbgblock: gen_dbgblock(stmt->label); break; case st_tryblock: /* gen_tryblock(stmt->label); */ break; case st_block: genstmt(stmt->lower, funcsp); genstmt(stmt->blockTail, funcsp); break; case st_label: gen_label((int)stmt->label); break; case st_goto: gen_igoto(i_goto, (int)stmt->label); break; case st_asmgoto: gen_igoto(i_asmgoto, (int)stmt->label); break; case st_asmcond: gen_igoto(i_asmcond, (int)stmt->label); break; case st_throw: /* gen_throw((TYPE *)stmt->lst, stmt->select);*/ break; /* case st_functailexpr: gen_icode(i_functailstart, 0, 0, 0); gen_expr(funcsp, stmt->select, F_NOVALUE, natural_size(stmt->select)); * gen_icode(i_functailend, 0, 0, 0); break; */ case st_expr: case st_declare: gen_expr(funcsp, stmt->select, F_NOVALUE, natural_size(stmt->select)); break; case st_return: genreturn(stmt, funcsp, 0, 0, NULL); break; case st_line: gen_line(stmt->lineData); break; case st_select: genselect(stmt, funcsp, TRUE); break; case st_notselect: genselect(stmt, funcsp, FALSE); break; case st_switch: genxswitch(stmt, funcsp); break; case st__genword: gen_genword(stmt, funcsp); break; case st_passthrough: gen_asm(stmt); break; case st_datapassthrough: gen_asmdata(stmt); break; default: diag("unknown statement."); break; } stmt = stmt->next; } }
IMODE *genstmt(STATEMENT *stmt, SYMBOL *funcsp) /* * genstmt will generate a statement and follow the next pointer * until the block is generated. */ { IMODE *rv = NULL; while (stmt != 0) { STATEMENT *last = stmt; switch (stmt->type) { case st_varstart: gen_varstart(stmt->select); break; case st_dbgblock: gen_dbgblock(stmt->label); break; break; case st_block: rv = genstmt(stmt->lower, funcsp); genstmt(stmt->blockTail, funcsp); break; case st_label: gen_label((int)stmt->label); break; case st_goto: gen_igoto(i_goto, (int)stmt->label); break; case st_asmgoto: gen_igoto(i_asmgoto, (int)stmt->label); break; case st_asmcond: gen_igoto(i_asmcond, (int)stmt->label); break; case st_try: gen_try(funcsp, stmt, stmt->label, stmt->endlabel, stmt->breaklabel, stmt->lower); break; case st_catch: { STATEMENT *last; while (stmt && stmt->type == st_catch) { gen_catch(funcsp, stmt, stmt->altlabel, stmt->breaklabel, stmt->lower); last = stmt; stmt = stmt->next; } stmt = last; gen_label(stmt->breaklabel); } break; case st_expr: case st_declare: if (stmt->select) rv = gen_expr(funcsp, stmt->select, F_NOVALUE, natural_size(stmt->select)); break; case st_return: genreturn(stmt, funcsp, 0, 0, NULL); break; case st_line: gen_line(stmt->lineData); break; case st_select: genselect(stmt, funcsp, TRUE); break; case st_notselect: genselect(stmt, funcsp, FALSE); break; case st_switch: genxswitch(stmt, funcsp); break; case st__genword: gen_genword(stmt, funcsp); break; case st_passthrough: gen_asm(stmt); break; case st_datapassthrough: gen_asmdata(stmt); break; default: diag("unknown statement."); break; } if (last->type != st_return && last->destexp) { gen_expr(funcsp, last->destexp, F_NOVALUE, ISZ_ADDR); } stmt = stmt->next; } return rv; }