nir/opcodes: Reword confusing comment

Signed-off-by: Alyssa Rosenzweig <alyssa@collabora.com>
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/10578>
This commit is contained in:
Alyssa Rosenzweig 2021-04-17 17:43:17 -04:00 committed by Marge Bot
parent 12a00da800
commit a976101da5

View file

@ -835,7 +835,7 @@ binop("seq", tfloat32, _2src_commutative, "(src0 == src1) ? 1.0f : 0.0f") # Set
binop("sne", tfloat32, _2src_commutative, "(src0 != src1) ? 1.0f : 0.0f") # Set on Not Equal
# SPIRV shifts are undefined for shift-operands >= bitsize,
# but SM5 shifts are defined to use the least significant bits, only
# but SM5 shifts are defined to use only the least significant bits.
# The NIR definition is according to the SM5 specification.
opcode("ishl", 0, tint, [0, 0], [tint, tuint32], False, "",
"(uint64_t)src0 << (src1 & (sizeof(src0) * 8 - 1))")