re PR rtl-optimization/13469 (IRIX 6.5 O32 libjava bootstrap failure: ICE in…

re PR rtl-optimization/13469 (IRIX 6.5 O32 libjava bootstrap failure: ICE in verify_local_live_at_start, at flow.c:557)

	PR optimization/13469
	* toplev.c (rest_of_compilation): Call purge_all_dead_edges after
	reload_cse_regs (-fnon-call-exceptions only).

From-SVN: r75669

gcc/ChangeLog

+2004-01-11  Richard Sandiford  <rsandifo@redhat.com>
+
+	PR optimization/13469
+	* toplev.c (rest_of_compilation): Call purge_all_dead_edges after
+	reload_cse_regs (-fnon-call-exceptions only).
+
 2004-01-11  Kazu Hirata  <kazu@cs.umass.edu>
 
 	* config/mcore/lib1.asm: Fix comment formatting.

gcc/toplev.c

@@ -3388,6 +3388,10 @@ rest_of_compilation (tree decl)
     {
       timevar_push (TV_RELOAD_CSE_REGS);
       reload_cse_regs (insns);
+      /* reload_cse_regs can eliminate potentially-trapping MEMs.
+	 Remove any EH edges associated with them.  */
+      if (flag_non_call_exceptions)
+	purge_all_dead_edges (0);
       timevar_pop (TV_RELOAD_CSE_REGS);
     }