unwind-ia64.c (uw_update_reg_address): Handle .save XX, r0.

	* config/ia64/unwind-ia64.c (uw_update_reg_address): Handle
	.save XX, r0.

From-SVN: r66861

gcc/ChangeLog

+2003-05-16  Jakub Jelinek  <jakub@redhat.com>
+
+	* config/ia64/unwind-ia64.c (uw_update_reg_address): Handle
+	.save XX, r0.
+
 2003-05-15  Roger Sayle  <roger@eyesopen.com>
 
 	* config/alpha/alpha.h (ASM_OUTPUT_SKIP): Fix typo.

gcc/config/ia64/unwind-ia64.c

@@ -1771,6 +1771,11 @@ uw_update_reg_address (struct _Unwind_Context *context,
 	addr = ia64_rse_skip_regs ((unsigned long *) context->bsp, rval - 32);
       else if (rval >= 2)
 	addr = context->ireg[rval - 2].loc;
+      else if (rval == 0)
+	{
+	  static const unsigned long dummy;
+	  addr = (void *) &dummy;
+	}
       else
 	abort ();
       break;
@@ -1822,6 +1827,11 @@ uw_update_reg_address (struct _Unwind_Context *context,
 	    context->ireg[regno - UNW_REG_R2].nat
 	      = context->ireg[rval - 2].nat;
 	  }
+	else if (rval == 0)
+	  {
+	    context->ireg[regno - UNW_REG_R2].nat.type = UNW_NAT_NONE;
+	    context->ireg[regno - UNW_REG_R2].nat.off = 0;
+	  }
 	else
 	  abort ();
 	break;