i965: Silence GCC maybe-uninitialized warning.

brw_shader.cpp: In function ‘bool brw_saturate_immediate(brw_reg_type, brw_reg*)’:
brw_shader.cpp:618:31: warning: ‘sat_imm.brw_saturate_immediate(brw_reg_type, brw_reg*)::<anonymous union>::ud’ may be used uninitialized in this function [-Wmaybe-uninitialized]
       reg->dw1.ud = sat_imm.ud;
                               ^

Signed-off-by: Vinson Lee <vlee@freedesktop.org>
Reviewed-by: Anuj Phogat <anuj.phogat@gmail.com>
1 file changed