final.c (final): Do not abort when reg-stack introduces a new insn.

        * final.c (final): Do not abort when reg-stack introduces
        a new insn.

From-SVN: r34927

gcc/ChangeLog

+2000-07-08  Richard Henderson  <rth@cygnus.com>
+
+        * final.c (final): Do not abort when reg-stack introduces
+	a new insn.
+
 2000-07-08  Zack Weinberg  <zack@wolery.cumb.org>
 
 	* cpplib.h (struct cpp_name): Now struct cpp_string.

gcc/final.c

@@ -2014,14 +2014,23 @@ final (first, file, optimize, prescan)
   for (insn = NEXT_INSN (first); insn;)
     {
 #ifdef HAVE_ATTR_length
-#ifdef ENABLE_CHECKING
-      /* This can be triggered by bugs elsewhere in the compiler if
-	 new insns are created after init_insn_lengths is called.  */
       if (INSN_UID (insn) >= insn_lengths_max_uid)
-	abort ();
-#endif
-      insn_current_address = insn_addresses[INSN_UID (insn)];
+	{
+#ifdef STACK_REGS
+	  /* Irritatingly, the reg-stack pass is creating new instructions
+	     and because of REG_DEAD note abuse it has to run after
+	     shorten_branches.  Fake address of -1 then.  */
+	  insn_current_address = -1;
+#else
+	  /* This can be triggered by bugs elsewhere in the compiler if
+	     new insns are created after init_insn_lengths is called.  */
+	  abort ();
 #endif
+	}
+      else
+	insn_current_address = insn_addresses[INSN_UID (insn)];
+#endif /* HAVE_ATTR_length */
+
       insn = final_scan_insn (insn, file, optimize, prescan, 0);
     }