+Mon May 4 19:15:29 1998 Jim Wilson <wilson@cygnus.com>
+
+ * expr.c (expand_expr, case INDIRECT_REF): Don't optimize string
+ reference if this is a store.
+
Mon May 4 17:25:17 1998 Richard Henderson <rth@cygnus.com>
* sparc.c (output_move_quad): Fix typo in mov_by_64 argument.
tree string = string_constant (exp1, &index);
int i;
+ /* Try to optimize reads from const strings. */
if (string
&& TREE_CODE (string) == STRING_CST
&& TREE_CODE (index) == INTEGER_CST
&& !TREE_INT_CST_HIGH (index)
&& (i = TREE_INT_CST_LOW (index)) < TREE_STRING_LENGTH (string)
&& GET_MODE_CLASS (mode) == MODE_INT
- && GET_MODE_SIZE (mode) == 1)
+ && GET_MODE_SIZE (mode) == 1
+ && modifier != EXPAND_MEMORY_USE_WO)
return GEN_INT (TREE_STRING_POINTER (string)[i]);
op0 = expand_expr (exp1, NULL_RTX, VOIDmode, EXPAND_SUM);