void genstmt(SNODE *stmt) /* * genstmt will generate a statement and follow the next pointer * until the block is generated. */ { while( stmt != 0 ) { switch( stmt->stype ) { case st_block: genstmt(stmt->exp); break; case st_label: gen_label((int)stmt->label); break; case st_goto: gen_code(op_jmp,0,make_label((int)stmt->label),0); break; case st_expr: initstack(); gen_expr(stmt->exp,F_ALL | F_NOVALUE, natural_size(stmt->exp)); break; case st_return: genreturn(stmt,0); break; case st_if: genif(stmt); break; case st_while: genwhile(stmt); break; case st_do: gendo(stmt); break; case st_for: gen_for(stmt); break; case st_continue: gen_code(op_jmp,0,make_label(contlab),0); break; case st_break: gen_code(op_jmp,0,make_label(breaklab),0); break; case st_switch: genxswitch(stmt); break; case st_line: gen_line(stmt); break; case st_asm: if (stmt->exp) add_peep(stmt->exp); break; case st__genword: gen_code(op_genword,0,make_immed((int)stmt->exp),0); break; default: diag("unknown statement."); break; } stmt = stmt->next; } }
/* * generate a code sequence into the peep list. */ void g_code P4 (OPCODE, op, ILEN, len, ADDRESS *, ap1, ADDRESS *, ap2) { add_peep (code (op, len, ap1, ap2)); }