2002-09-30 H.J. Lu <hjl@gnu.org>

[deliverable/binutils-gdb.git] / gas / expr.c

diff --git a/gas/expr.c b/gas/expr.c
index 13c167ad95db497ccf2f24e73f562cc7a0f25786..68c4a788906fb2d7ccaed0ca3e19c3d8f517366d 100644 (file)
--- a/gas/expr.c
+++ b/gas/expr.c
@@ -1,6 +1,6 @@
 /* expr.c -operands, expressions-
    Copyright 1987, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998,
-   1999, 2000, 2001
+   1999, 2000, 2001, 2002
    Free Software Foundation, Inc.
 
    This file is part of GAS, the GNU Assembler.
@@ -1347,8 +1347,6 @@ operand (expressionP)
        Elsewise we waste time special-case testing. Sigh. Ditto SEG_ABSENT.
 
    Out:        expressionS may have been modified:
-       'foo-foo' symbol references cancelled to 0, which changes X_op
-       from O_subtract to O_constant.
        Unused fields zeroed to help expr ().  */
 
 static void
@@ -1371,23 +1369,6 @@ clean_up_expression (expressionP)
     case O_bit_not:
       expressionP->X_op_symbol = NULL;
       break;
-    case O_subtract:
-      if (expressionP->X_op_symbol == expressionP->X_add_symbol
-         || ((symbol_get_frag (expressionP->X_op_symbol)
-              == symbol_get_frag (expressionP->X_add_symbol))
-             && SEG_NORMAL (S_GET_SEGMENT (expressionP->X_add_symbol))
-             && (S_GET_VALUE (expressionP->X_op_symbol)
-                 == S_GET_VALUE (expressionP->X_add_symbol))))
-       {
-         addressT diff = (S_GET_VALUE (expressionP->X_add_symbol)
-                          - S_GET_VALUE (expressionP->X_op_symbol));
-
-         expressionP->X_op = O_constant;
-         expressionP->X_add_symbol = NULL;
-         expressionP->X_op_symbol = NULL;
-         expressionP->X_add_number += diff;
-       }
-      break;
     default:
       break;
     }
@@ -1659,6 +1640,10 @@ expr (rankarg, resultP)
 
   know (rank >= 0);
 
+  /* Save the value of dot for the fixup code.  */
+  if (rank == 0)
+    dot_value = frag_now_fix ();
+
   retval = operand (resultP);
 
   /* operand () gobbles spaces.  */
@@ -1749,7 +1734,8 @@ expr (rankarg, resultP)
               && resultP->X_op == O_symbol
               && (symbol_get_frag (right.X_add_symbol)
                   == symbol_get_frag (resultP->X_add_symbol))
-              && SEG_NORMAL (rightseg))
+              && (SEG_NORMAL (rightseg)
+                  || right.X_add_symbol == resultP->X_add_symbol))
        {
          resultP->X_add_number -= right.X_add_number;
          resultP->X_add_number += (S_GET_VALUE (resultP->X_add_symbol)