grevi      rd rs1 31..26=26 shamtd 14..12=5 6..2=0x04 1..0=3
gorci      rd rs1 31..26=10 shamtd 14..12=5 6..2=0x04 1..0=3
shfli      rd rs1 31..26=2 25=0 shamtw 14..12=1 6..2=0x04 1..0=3
unshfli    rd rs1 31..26=2 25=0 shamtw 14..12=5 6..2=0x04 1..0=3
xperm32    rd rs1 rs2 31..25=20 14..12=0 6..2=0x0C 1..0=3