------- Additional Comments From pinskia at physics dot uc dot edu 2005-09-19 16:05 ------- Subject: Re: SSA_NAMEs are not released after no longer being used.
On Sep 19, 2005, at 11:59 AM, amacleod at redhat dot com wrote: > We also probably have to set SSA_NAME_DEF_STMT to NULL in bsi_remove > in order to > be sure that an SSA name with no uses isn't actually associated with a > stmt any > more (you can have valid defs with no uses). It is set when the > SSA_NAME is > created, but I don't think that field ever gets cleared anywhere else. Except that does not work as mentioned before as people do bsi_remove and then bsi_insert on the same staement when moving the statement around. And isn't that the same thing as adding release_defs in bsi_remove? And that will not work for the SSA_NAMEs used for aliasing and then the variable becomes a gimple register. -- Pinski -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=23940
