!$acc loop 
!$acc loop private (a, b, c)
!$acc loop auto
!$acc loop auto
!$acc loop collapse (1)
!$acc loop collapse (1) collapse (2)
!$acc loop collapse (1) collapse (2)
!$acc loop device_type (a, b, c)
!$acc loop gang
!$acc loop gang (a, b, c)
!$acc loop gang (a, b, c, d)
!$acc loop gang (a, b, c) gang
!$acc loop gang gang (a, b, c, d)
!$acc loop independent
!$acc loop independent
!$acc loop seq
!$acc loop vector (length: a)
!$acc loop vector (length: a) vector (length: b)
!$acc loop vector (length: a)
!$acc loop vector (c) vector (length: c)
!$acc loop vector (c) vector (b)
!$acc loop vector (c)
!$acc loop worker (num: a)
!$acc loop worker (num: a) worker (num: b)
!$acc loop worker (num: a)
!$acc loop worker (c) worker (num: c)
!$acc loop worker (c) worker (b)
!$acc loop worker (c)
!$acc loop tile (1)
!$acc loop tile (1, 2)
!$acc loop tile (1, 2)
!$acc loop tile (1, 2) worker (num: a) worker (num: 5) independent collapse (1)
!$acc loop reduction (+: x, y, z, a, b, c)
!$acc loop reduction (+: x, y, z) reduction (*: a, b, c)
!$acc loop reduction (max: x, y, z) reduction (min: a, b, c)
!$acc loop reduction (min: x, y, z, a, b, c)
!$acc loop reduction (min: x, y, z) reduction (&&: a, b, c)
!$acc loop reduction (||: x, y, z) reduction (&&: a, b, c)
!$acc loop reduction (&&: x, y, z, a, b, c)
!$acc loop reduction (max: x, y, max, min)
!$acc loop device_type (x, y, z)
!$acc loop reduction (+: x, y, z)
!$acc loop reduction (*: x, y, z)
!$acc loop reduction (max: x, y, z)
!$acc loop reduction (max: x, y, max)
!$acc loop reduction (max: max, y, z)
!$acc loop reduction (max: max::x, y, max)
!$acc loop reduction (max: max::x, max, max::y)
!$acc loop reduction (min: x, y, z)
!$acc loop reduction (min: x, y, min)
!$acc loop reduction (min: min, y, z)
!$acc loop reduction (min: min::x, y, min)
!$acc loop reduction (min: min::x, min, min::y)
!$acc loop reduction ($: x[5], y, z)
!$acc loop reduction (|: x, y, z)
!$acc loop reduction (^: x, y, z)
!$acc loop reduction (&&: x, y, z)
