+Mon Oct 26 13:32:31 1998 Richard Henderson <rth@cygnus.com>
+
+ * stmt.c (expand_asm_operands): Accept `=' or `+' at any position.
+
Mon Oct 26 12:53:14 1998 Jeffrey A Law (law@cygnus.com)
* tm.texi (ASM_OUTPUT_MAX_SKIP_ALIGN): Document.
tree val = TREE_VALUE (tail);
tree type = TREE_TYPE (val);
char *constraint;
+ char *p;
int c_len;
int j;
int is_inout = 0;
c_len = TREE_STRING_LENGTH (TREE_PURPOSE (tail)) - 1;
constraint = TREE_STRING_POINTER (TREE_PURPOSE (tail));
- if (c_len == 0
- || (constraint[0] != '=' && constraint[0] != '+'))
+ /* Allow the `=' or `+' to not be at the beginning of the string,
+ since it wasn't explicitly documented that way, and there is a
+ large body of code that puts it last. Swap the character to
+ the front, so as not to uglify any place else. */
+ switch (c_len)
{
+ default:
+ if ((p = strchr (constraint, '=')) != NULL)
+ break;
+ if ((p = strchr (constraint, '+')) != NULL)
+ break;
+ case 0:
error ("output operand constraint lacks `='");
return;
}
+ if (p != constraint)
+ {
+ j = *p;
+ bcopy (constraint, constraint+1, p-constraint);
+ *constraint = j;
+
+ warning ("output constraint `%c' for operand %d is not at the beginning", j, i);
+ }
+
is_inout = constraint[0] == '+';
/* Replace '+' with '='. */
constraint[0] = '=';