nir: fix definition of pack_uvec2_to_uint

Found by inspection. Untested beyond compilation. This also matches the
logic used in nir_lower_alu_to_scalar.

Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
Cc: mesa-stable@lists.freedesktop.org

diff --git a/src/compiler/nir/nir_opcodes.py b/src/compiler/nir/nir_opcodes.py
index 15066c2b580c760193ac7e78f9ca83a033fd070e..7045c953bef694f4570a03b09e9e25b021164cfc 100644 (file)
--- a/src/compiler/nir/nir_opcodes.py
+++ b/src/compiler/nir/nir_opcodes.py
@@ -257,7 +257,7 @@ unpack_4x8("unorm")
 unpack_2x16("half")
 
 unop_horiz("pack_uvec2_to_uint", 1, tuint32, 2, tuint32, """
-dst.x = (src0.x & 0xffff) | (src0.y >> 16);
+dst.x = (src0.x & 0xffff) | (src0.y << 16);
 """)
 
 unop_horiz("pack_uvec4_to_uint", 1, tuint32, 4, tuint32, """