re PR tree-optimization/23382 (Does not remove the old HEAP virtual variables in...

re PR tree-optimization/23382 (Does not remove the old HEAP virtual variables in clobbered)

2005-11-08  Daniel Berlin  <dberlin@dberlin.org>

	Fix PR tree-optimization/23382

	* tree-ssa-alias.c (compute_may_aliases): Call
	delete_old_heap_vars.
	* tree-dfa.c (referenced_var_remove): New function.
	* tree-ssa.c (delete_tree_ssa): Call delete_old_heap_vars.
	* tree-flow.h (referenced_var_remove): Add prototype.
	(delete_old_heap_vars): Ditto.
	* tree-ssa-structalias.c (heapvars): New variable.
	(oldheapvars): Ditto.
	(get_constraint_for): Put heap vars on heapvars list.
	(delete_old_heap_vars): New function.

From-SVN: r106643