sh: uaccess: Require offsettable operands for 64-bit user access

The 64-bit __get_user_u64()/__put_user_u64() paths address the memory
operand as %T2 (base+4). This base+4 requires an offsettable address,
but "m" also allows the indexed mode @(R0,Rn) (e.g. for a variable-
indexed array element), which has no displacement field for the +4.
Depending on optimization this build fails with "invalid 'asm'" or an
ICE in GCC's change_address_1.

Require an offsettable memory operand, allowing GCC to reload an
unsuitable indexed address into an appropriate form.

Fixes: 2d2b308a8b7d ("sh: Implement __get_user_u64() required for 64-bit get_user()")
Signed-off-by: Florian Fuchs <fuchsfl@gmail.com>
Reviewed-by: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>
Signed-off-by: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>

0 files changed, 0 insertions, 0 deletions