We want symmetry between loads and stores, so we add a dummy source. So
we get, e.g.
st_int4 _, val, arg_1, arg_2
ld_int4 dest, _, arg_1, arg_2
Semantically, this dummy source represents the data itself, as if the
load is simply a move. That means it has a swizzle that acts as a
source.
Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Alyssa Rosenzweig
e7fd14ca8a