Redundant Load Elimination in GCSE

[Sanjiv Kumar Gupta, Noida]

>The function rtx_equal_for_memref_p (from alias.c) can do this for us. It
>can check if two pseudo registers point to the same memory address 

refer to my earlier postings
	http://gcc.gnu.org/ml/gcc/2002-10/msg01558.html	
	http://gcc.gnu.org/ml/gcc/2002-10/msg01032.html
In these cases, rtx_equal_for_memref_p can not tell if two pseduos point to
the same memory adress.

--Sanjiv