# CHECK: r17 = combine(r31.l, r21.l)
0xb0 0xe2 0x0f 0x7c
# CHECK: r17:16 = combine(#21, #31)
+0xb0 0xe2 0x3f 0x73
+# CHECK: r17:16 = combine(#21, r31)
+0xf0 0xe3 0x15 0x73
+# CHECK: r17:16 = combine(r21, #31)
+0x10 0xdf 0x15 0xf5
+# CHECK: r17:16 = combine(r21, r31)
0xf1 0xc3 0x75 0x73
# CHECK: r17 = mux(p3, r21, #31)
0xb1 0xc2 0xff 0x73