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r153475 - in /trunk/gcc: ChangeLog cselib.c rtl...


Author: rsandifo
Date: Thu Oct 22 22:30:12 2009
New Revision: 153475

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=153475
Log:
gcc/
	* rtl.h (shallow_copy_rtvec): Declare.
	* rtl.c (shallow_copy_rtvec): New function.
	* cselib.c (cselib_subst_to_values): Use it.  Only modify an
	rtx field if the subrtx has changed.

Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/cselib.c
    trunk/gcc/rtl.c
    trunk/gcc/rtl.h


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