re PR debug/48163 (ICEs for cris-elf, like gcc.c-torture/compile/calls.c…

re PR debug/48163 (ICEs for cris-elf, like gcc.c-torture/compile/calls.c gcc.c-torture/execute/complex-1.c)

	PR debug/48163
	* var-tracking.c (prepare_call_arguments): If CALL target
	is a non-SYMBOL_REF CONSTANT_P, just add that into the list as
	pc instead of looking it up using cselib_lookup and use
	Pmode for it if x has VOIDmode.
	* dwarf2out.c (gen_subprogram_die): If also both first and
	second CONCAT arguments are VOIDmode, use mode of CONCAT itself.

From-SVN: r171114

gcc/ChangeLog

 2011-03-17  Jakub Jelinek  <jakub@redhat.com>
 
 	PR debug/48163
+	* var-tracking.c (prepare_call_arguments): If CALL target
+	is a non-SYMBOL_REF CONSTANT_P, just add that into the list as
+	pc instead of looking it up using cselib_lookup and use
+	Pmode for it if x has VOIDmode.
+	* dwarf2out.c (gen_subprogram_die): If also both first and
+	second CONCAT arguments are VOIDmode, use mode of CONCAT itself.
+
+	PR debug/48163
 	* function.c (assign_parms): For data.passed_pointer parms
 	use MEM of data.entry_parm instead of data.entry_parm itself
 	as DECL_INCOMING_RTL.

gcc/dwarf2out.c

@@ -19481,7 +19481,11 @@ gen_subprogram_die (tree decl, dw_die_ref context_die)
 			 == REGNO (XEXP (XEXP (XEXP (next_arg, 0), 0), 0)))
 		    next_arg = XEXP (next_arg, 1);
 		  if (mode == VOIDmode)
-		    mode = GET_MODE (XEXP (XEXP (arg, 0), 0));
+		    {
+		      mode = GET_MODE (XEXP (XEXP (arg, 0), 0));
+		      if (mode == VOIDmode)
+			mode = GET_MODE (XEXP (arg, 0));
+		    }
 		  if (GET_MODE_CLASS (mode) != MODE_INT
 		      || GET_MODE_SIZE (mode) > DWARF2_ADDR_SIZE)
 		    continue;

gcc/var-tracking.c

@@ -5818,7 +5818,16 @@ prepare_call_arguments (basic_block bb, rtx insn)
   if (GET_CODE (x) == CALL && MEM_P (XEXP (x, 0)))
     {
       x = XEXP (XEXP (x, 0), 0);
-      if (GET_CODE (x) != SYMBOL_REF)
+      if (GET_CODE (x) == SYMBOL_REF)
+	/* Don't record anything.  */;
+      else if (CONSTANT_P (x))
+	{
+	  x = gen_rtx_CONCAT (GET_MODE (x) == VOIDmode ? Pmode : GET_MODE (x),
+			      pc_rtx, x);
+	  call_arguments
+	    = gen_rtx_EXPR_LIST (VOIDmode, x, call_arguments);
+	}
+      else
 	{
 	  cselib_val *val = cselib_lookup (x, GET_MODE (x), 0, VOIDmode);
 	  if (val && cselib_preserved_value_p (val))