loop.c (scan_loop): Do not consider insns setting the frame pointer to be candidates for hoisting.

	* loop.c (scan_loop): Do not consider insns setting the frame
	pointer to be candidates for hoisting.

From-SVN: r101182

gcc/ChangeLog

+2005-06-19  Ulrich Weigand  <uweigand@de.ibm.com>
+
+	* loop.c (scan_loop): Do not consider insns setting the frame
+	pointer to be candidates for hoisting.
+
 2005-06-19  Uros Bizjak  <uros@kss-loka.si>
 
 	* config/i386/i386.md (*cmpfp_0_sf, *cmpfp_0_df, cmpfp_0_xf):

gcc/loop.c

@@ -1135,6 +1135,7 @@ scan_loop (struct loop *loop, int flags)
 	  if (! in_libcall
 	      && (set = single_set (p))
 	      && REG_P (SET_DEST (set))
+	      && SET_DEST (set) != frame_pointer_rtx
 #ifdef PIC_OFFSET_TABLE_REG_CALL_CLOBBERED
 	      && SET_DEST (set) != pic_offset_table_rtx
 #endif