17 lines
449 B
C
17 lines
449 B
C
|
|
/* C O P Y P R O P A G A T I O N
|
|
*
|
|
* A U X I L I A R Y R O U T I N E S
|
|
*/
|
|
|
|
|
|
extern repl_line(); /* (line_p old,new; bblock_p b)
|
|
* Replace EM instruction 'old' by a
|
|
* copy of 'new'. Update doubly-linked
|
|
* list.
|
|
*/
|
|
extern bool same_var(); /* (line_p use,def)
|
|
* 'use' is an instruction that uses a variable
|
|
* for which we maintain ud-info (e.g. a LOL).
|
|
* See if 'def' references the same variable.
|
|
*/
|