postreload.c (reload_cse_move2add): Allow any condjump...

* postreload.c (reload_cse_move2add): Allow any condjump, but check
that the implicit set isn't clobbered in the jump insn.

From-SVN: r86308

gcc/ChangeLog

+2004-08-20  Richard Earnshaw  <rearnsha@arm.com>
+
+	* postreload.c (reload_cse_move2add): Allow any condjump, but check
+	that the implicit set isn't clobbered in the jump insn.
+
 2004-08-19  Mark Mitchell  <mark@codesourcery.com>
 
 	* defaults.h (TARGET_LIBGCC_LIBFUNCS): Remove.

gcc/postreload.c

@@ -1375,13 +1375,14 @@ reload_cse_move2add (rtx first)
 
       /* If INSN is a conditional branch, we try to extract an
 	 implicit set out of it.  */
-      if (any_condjump_p (insn) && onlyjump_p (insn))
+      if (any_condjump_p (insn))
 	{
 	  rtx cnd = fis_get_condition (insn);
 
 	  if (cnd != NULL_RTX
 	      && GET_CODE (cnd) == NE
 	      && REG_P (XEXP (cnd, 0))
+	      && !reg_set_p (XEXP (cnd, 0), insn)
 	      /* The following two checks, which are also in
 		 move2add_note_store, are intended to reduce the
 		 number of calls to gen_rtx_SET to avoid memory