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));
+
+ if (is_set_dest)
+ push_reload (NULL_RTX, SUBREG_REG (x), NULL_PTR, &SUBREG_REG (x),
+ find_valid_class (subreg_mode, SUBREG_WORD (x)),
+ VOIDmode, subreg_mode, 0, 0, opnum, type);
+ else
+ push_reload (SUBREG_REG (x), NULL_RTX, &SUBREG_REG (x), NULL_PTR,
+ find_valid_class (subreg_mode, SUBREG_WORD (x)),
+ subreg_mode, VOIDmode, 0, 0, opnum, type);
+ }
for (copied = 0, i = GET_RTX_LENGTH (code) - 1; i >= 0; i--)
{
\f
/* Substitute into the current INSN the registers into which we have reloaded
the things that need reloading. The array `replacements'
- says contains the locations of all pointers that must be changed
+ contains the locations of all pointers that must be changed
and says what to replace them with.
Return the rtx that X translates into; usually X, but modified. */