From 5b50aa9d606c53248c582235e5a9e5ab6cecbbc4 Mon Sep 17 00:00:00 2001
From: Richard Henderson <rth@redhat.com>
Date: Mon, 20 Jan 2003 23:37:13 -0800
Subject: re PR rtl-optimization/7507 (ICE (segfault) with -O2)

        PR opt/7507
        * stmt.c (expand_asm_operands): Validize memory operands.
	* gcc.dg/20030120-1.c: New.

From-SVN: r61535
---
 gcc/stmt.c | 32 +++++++++++++++++++++-----------
 1 file changed, 21 insertions(+), 11 deletions(-)

(limited to 'gcc/stmt.c')

diff --git a/gcc/stmt.c b/gcc/stmt.c
index 6f122c4..b6503cf 100644
--- a/gcc/stmt.c
+++ b/gcc/stmt.c
@@ -1610,6 +1610,7 @@ expand_asm_operands (string, outputs, inputs, clobbers, vol, filename, line)
       bool is_inout;
       bool allows_reg;
       bool allows_mem;
+      rtx op;
 
       if (!parse_output_constraint (&constraints[i], i, ninputs,
 				    noutputs, &allows_mem, &allows_reg,
@@ -1633,24 +1634,28 @@ expand_asm_operands (string, outputs, inputs, clobbers, vol, filename, line)
 	  || ! allows_reg
 	  || is_inout)
 	{
-	  output_rtx[i] = expand_expr (val, NULL_RTX, VOIDmode, EXPAND_WRITE);
+	  op = expand_expr (val, NULL_RTX, VOIDmode, EXPAND_WRITE);
+	  if (GET_CODE (op) == MEM)
+	    op = validize_mem (op);
 
-	  if (! allows_reg && GET_CODE (output_rtx[i]) != MEM)
+	  if (! allows_reg && GET_CODE (op) != MEM)
 	    error ("output number %d not directly addressable", i);
-	  if ((! allows_mem && GET_CODE (output_rtx[i]) == MEM)
-	      || GET_CODE (output_rtx[i]) == CONCAT)
+	  if ((! allows_mem && GET_CODE (op) == MEM)
+	      || GET_CODE (op) == CONCAT)
 	    {
-	      real_output_rtx[i] = protect_from_queue (output_rtx[i], 1);
-	      output_rtx[i] = gen_reg_rtx (GET_MODE (output_rtx[i]));
+	      real_output_rtx[i] = protect_from_queue (op, 1);
+	      op = gen_reg_rtx (GET_MODE (op));
 	      if (is_inout)
-		emit_move_insn (output_rtx[i], real_output_rtx[i]);
+		emit_move_insn (op, real_output_rtx[i]);
 	    }
 	}
       else
 	{
-	  output_rtx[i] = assign_temp (type, 0, 0, 1);
-	  TREE_VALUE (tail) = make_tree (type, output_rtx[i]);
+	  op = assign_temp (type, 0, 0, 1);
+	  op = validize_mem (op);
+	  TREE_VALUE (tail) = make_tree (type, op);
 	}
+      output_rtx[i] = op;
 
       generating_concat_p = old_generating_concat_p;
 
@@ -1702,6 +1707,8 @@ expand_asm_operands (string, outputs, inputs, clobbers, vol, filename, line)
       /* Never pass a CONCAT to an ASM.  */
       if (GET_CODE (op) == CONCAT)
 	op = force_reg (GET_MODE (op), op);
+      else if (GET_CODE (op) == MEM)
+	op = validize_mem (op);
 
       if (asm_operand_ok (op, constraint) <= 0)
 	{
@@ -1711,7 +1718,10 @@ expand_asm_operands (string, outputs, inputs, clobbers, vol, filename, line)
 	    warning ("asm operand %d probably doesn't match constraints",
 		     i + noutputs);
 	  else if (CONSTANT_P (op))
-	    op = force_const_mem (TYPE_MODE (type), op);
+	    {
+	      op = force_const_mem (TYPE_MODE (type), op);
+	      op = validize_mem (op);
+	    }
 	  else if (GET_CODE (op) == REG
 		   || GET_CODE (op) == SUBREG
 		   || GET_CODE (op) == ADDRESSOF
@@ -1721,7 +1731,7 @@ expand_asm_operands (string, outputs, inputs, clobbers, vol, filename, line)
 						     (TYPE_QUALS (type)
 						      | TYPE_QUAL_CONST));
 	      rtx memloc = assign_temp (qual_type, 1, 1, 1);
-
+	      memloc = validize_mem (memloc);
 	      emit_move_insn (memloc, op);
 	      op = memloc;
 	    }
-- 
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