Allow illegal shifts by zero to be recorded as logical shift lefts by zero.
This commit is contained in:
parent
3f215a1093
commit
4fb7971f4b
|
@ -1,3 +1,8 @@
|
|||
2000-08-17 Nick Clifton <nickc@redhat.com>
|
||||
|
||||
* config/tc-arm.c (decode_shift): Allow illegal shifts by zero
|
||||
to be recoded as logical shift lefts by zero.
|
||||
|
||||
2000-08-16 Jim Wilson <wilson@cygnus.com>
|
||||
|
||||
* config/tc-ia64.c (specify_resource, case IA64_RS_GR): Handle
|
||||
|
|
|
@ -2531,7 +2531,7 @@ decode_shift (str, unrestrict)
|
|||
char ** str;
|
||||
int unrestrict;
|
||||
{
|
||||
struct asm_shift_name * shift;
|
||||
const struct asm_shift_name * shift;
|
||||
char * p;
|
||||
char c;
|
||||
|
||||
|
@ -2548,7 +2548,7 @@ decode_shift (str, unrestrict)
|
|||
|
||||
c = * p;
|
||||
* p = '\0';
|
||||
shift = (struct asm_shift_name *) hash_find (arm_shift_hsh, * str);
|
||||
shift = (const struct asm_shift_name *) hash_find (arm_shift_hsh, * str);
|
||||
* p = c;
|
||||
|
||||
if (shift == NULL)
|
||||
|
@ -2602,10 +2602,16 @@ decode_shift (str, unrestrict)
|
|||
|| (num == 32 && shift->properties->allows_32 == 0)
|
||||
)
|
||||
{
|
||||
/* As a special case we allow ROR #0, but we issue a message
|
||||
reminding the programmer that this is actually an RRX. */
|
||||
if (num == 0 && shift->properties->index == SHIFT_ROR)
|
||||
as_tsktsk (_("ROR #0 is actually RRX"));
|
||||
/* As a special case we allow a shift of zero for
|
||||
modes that do not support it to be recoded as an
|
||||
logical shift left of zero (ie nothing). We warn
|
||||
about this though. */
|
||||
if (num == 0)
|
||||
{
|
||||
as_tsktsk (_("Shift of 0 ignored."));
|
||||
shift = shift_names;
|
||||
assert (shift->properties->index == SHIFT_LSL);
|
||||
}
|
||||
else
|
||||
{
|
||||
inst.error = _("Invalid immediate shift");
|
||||
|
|
Loading…
Reference in New Issue