+2001-08-27 Geoffrey Keating <geoffk@redhat.com>
+
+ * reload.c (find_reloads_toplev): Back out this change:
+
+ Wed Jul 26 19:44:05 2000 Hans-Peter Nilsson <hp@axis.com>
+
+ * reload.c (find_reloads_toplev): Reload a paradoxical subreg of a
+ mem if the address is a mode_dependent_address_p.
+
2001-08-27 Vladimir Makarov <vmakarov@touchme.toronto.redhat.com>
* rtl.def (DEFINE_CPU_UNIT, DEFINE_QUERY_CPU_UNIT, EXCLUSION_SET,
x = find_reloads_subreg_address (x, 1, opnum, type, ind_levels,
insn);
}
- else if (code == SUBREG && GET_CODE (SUBREG_REG (x)) == MEM
- && (GET_MODE_SIZE (GET_MODE (x))
- > GET_MODE_SIZE (GET_MODE (SUBREG_REG (x))))
- && mode_dependent_address_p (XEXP (SUBREG_REG (x), 0)))
- {
- /* A paradoxical subreg will simply have the mode of the access
- changed, so we need to reload such a memory operand to stabilize
- the meaning of the memory access. */
- enum machine_mode subreg_mode = GET_MODE (SUBREG_REG (x));
-
- /* SUBREG_REG (x) is a MEM, so we cant take the offset, instead we
- calculate the register number as :
- SUBREG_BYTE (x) / GET_MODE_SIZE (subreg_mode) */
- if (is_set_dest)
- push_reload (NULL_RTX, SUBREG_REG (x), (rtx*)0, &SUBREG_REG (x),
- find_valid_class (subreg_mode,
- SUBREG_BYTE (x) / GET_MODE_SIZE (subreg_mode)),
- VOIDmode, subreg_mode, 0, 0, opnum, type);
- else
- push_reload (SUBREG_REG (x), NULL_RTX, &SUBREG_REG (x), (rtx*)0,
- find_valid_class (subreg_mode,
- SUBREG_BYTE (x) / GET_MODE_SIZE (subreg_mode)),
- subreg_mode, VOIDmode, 0, 0, opnum, type);
- }
for (copied = 0, i = GET_RTX_LENGTH (code) - 1; i >= 0; i--)
{