r132053 - in /trunk/gcc: ChangeLog fwprop.c reg...

[hp@gcc.gnu.org]

Author: hp
Date: Fri Feb  1 21:28:46 2008
New Revision: 132053

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=132053
Log:
	PR rtl-optimization/34773
	* reg-notes.def (EQUAL): Mention significance of combination of
	REG_EQUAL and REG_RETVAL.
	* fwprop.c (try_fwprop_subst): Don't add REG_EQUAL to an
	insn that has a REG_RETVAL.

Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/fwprop.c
    trunk/gcc/reg-notes.def