re PR target/18032 ([4.0.0] SH: wrong code for EH)

	PR target/18032
	* config/sh/sh.c (sh_expand_epilogue): Emit a blockage insn before
	the frame pointer adjustment when exception handling is enabled.

From-SVN: r89333

gcc/ChangeLog

+2004-10-20  Kaz Kojima  <kkojima@gcc.gnu.org>
+
+	PR target/18032
+	* config/sh/sh.c (sh_expand_epilogue): Emit a blockage insn before
+	the frame pointer adjustment when exception handling is enabled.
+
 2004-10-20  Kazu Hirata  <kazu@cs.umass.edu>
 
 	* stor-layout.c: Fix a comment typo.

gcc/config/sh/sh.c

@@ -5828,6 +5828,10 @@ sh_expand_epilogue (bool sibcall_p)
 
   if (frame_pointer_needed)
     {
+      /* We must avoid scheduling the epilogue with previous basic blocks
+	 when exception handling is enabled.  See PR/18032.  */
+      if (flag_exceptions)
+	emit_insn (gen_blockage ());
       output_stack_adjust (frame_size, frame_pointer_rtx, e, &live_regs_mask);
 
       /* We must avoid moving the stack pointer adjustment past code