lcm improvements/fixes

Richard Henderson
Tue Nov 30 23:59:00 GMT 1999

On Wed, Nov 10, 1999 at 11:37:40PM -0700, Jeffrey A Law wrote:
> ! 	  /* Do not clear the aux field for blocks which are
> ! 	     predecessors of the EXIT block.  That way we never
> ! 	     add then to the worklist again.  */

We need to decide on protocol here.  Either we have to always assume
AUX is garbage on entry to a routine, or we have to be dilligent about
resetting it to NULL on exit.


More information about the Gcc-patches mailing list