cfgrtl.c (try_redirect_by_replacing_jump): Check only_sets_cc0_p.

gcc/
	* cfgrtl.c (try_redirect_by_replacing_jump): Check only_sets_cc0_p.

From-SVN: r121339

gcc/ChangeLog

+2007-01-30  Richard Sandiford  <richard@codesourcery.com>
+
+	* cfgrtl.c (try_redirect_by_replacing_jump): Check only_sets_cc0_p.
+
 2007-01-30  Uros Bizjak  <ubizjak@gmail.com>
 
 	* builtins.c (expand_builtin_int_interclass_roundingfn): New function

gcc/cfgrtl.c

@@ -728,7 +728,8 @@ try_redirect_by_replacing_jump (edge e, basic_block target, bool in_cfglayout)
      the cc0 setter too.  */
   kill_from = insn;
 #ifdef HAVE_cc0
-  if (reg_mentioned_p (cc0_rtx, PATTERN (insn)))
+  if (reg_mentioned_p (cc0_rtx, PATTERN (insn))
+      && only_sets_cc0_p (PREV_INSN (insn)))
     kill_from = PREV_INSN (insn);
 #endif