[require] format r32-sint uav-load format r32-uint uav-load [uav 1] format r32-uint size (buffer, 11) 0xd 5 6 0x10 4 4 7 2 0 5 0 [compute shader fail(sm<5)] RWBuffer u : register(u1); uniform uint4 v; [numthreads(3, 1, 1)] void main() { uint old; InterlockedAnd(u[0], v.x); InterlockedCompareStore(u[1], v.y, v.x); InterlockedAdd(u[2], v.x); InterlockedOr(u[3], v.x); InterlockedMax(u[4], v.x); InterlockedMin(u[5], v.x); InterlockedXor(u[6], v.x); InterlockedExchange(u[7], v.x, old); InterlockedAdd(u[8], old == 2); InterlockedCompareExchange(u[9], v.y, v.x, old); InterlockedAdd(u[10], old == 5); } [test] uniform 0 uint4 3 5 0 0 todo(glsl | msl) dispatch 1 1 1 probe uav 1 (0) rui (1) probe uav 1 (1) rui (3) probe uav 1 (2) rui (15) probe uav 1 (3) rui (0x13) probe uav 1 (4) rui (4) probe uav 1 (5) rui (3) probe uav 1 (6) rui (4) probe uav 1 (7) rui (3) probe uav 1 (8) rui (1) probe uav 1 (9) rui (3) probe uav 1 (10) rui (1) uniform 0 uint4 1 2 0 0 todo(glsl | msl) dispatch 2 1 1 probe uav 1 (0) rui (1) probe uav 1 (1) rui (3) probe uav 1 (2) rui (21) probe uav 1 (3) rui (0x13) probe uav 1 (4) rui (4) probe uav 1 (5) rui (1) probe uav 1 (6) rui (4) probe uav 1 (7) rui (1) probe uav 1 (8) rui (1) probe uav 1 (9) rui (3) probe uav 1 (10) rui (1) [uav 2] format r32-sint size (buffer, 2) -3 1 [compute shader fail(sm<5)] RWBuffer u : register(u2); uniform int4 i; [numthreads(3, 1, 1)] void main() { InterlockedMax(u[0], i.x); InterlockedMin(u[1], i.y); } [test] uniform 0 int4 1 -3 0 0 todo(glsl | msl) dispatch 1 1 1 probe uav 2 (0) ri (1) probe uav 2 (1) ri (-3) uniform 0 int4 -3 1 0 0 todo(glsl | msl) dispatch 1 1 1 probe uav 2 (0) ri (1) probe uav 2 (1) ri (-3) [uav 1] format r32-uint size (2d, 11, 1) 0xd 5 6 0x10 4 4 7 2 0 5 0 [compute shader fail(sm<5)] RWTexture2D u : register(u1); uniform uint4 v; [numthreads(3, 1, 1)] void main() { uint old; InterlockedAnd(u[uint2(0, 0)], v.x); InterlockedCompareStore(u[uint2(1, 0)], v.y, v.x); InterlockedAdd(u[uint2(2, 0)], v.x); InterlockedOr(u[uint2(3, 0)], v.x); InterlockedMax(u[uint2(4, 0)], v.x); InterlockedMin(u[uint2(5, 0)], v.x); InterlockedXor(u[uint2(6, 0)], v.x); InterlockedExchange(u[uint2(7, 0)], v.x, old); InterlockedAdd(u[uint2(8, 0)], old == 2); InterlockedCompareExchange(u[uint2(9, 0)], v.y, v.x, old); InterlockedAdd(u[uint2(10, 0)], old == 5); } [test] uniform 0 uint4 3 5 0 0 todo(glsl | msl) dispatch 1 1 1 probe uav 1 (0) rui (1) probe uav 1 (1) rui (3) probe uav 1 (2) rui (15) probe uav 1 (3) rui (0x13) probe uav 1 (4) rui (4) probe uav 1 (5) rui (3) probe uav 1 (6) rui (4) probe uav 1 (7) rui (3) probe uav 1 (8) rui (1) probe uav 1 (9) rui (3) probe uav 1 (10) rui (1) [compute shader fail(sm<5)] RWTexture2D u : register(u2); uniform int4 i; [numthreads(3, 1, 1)] void main() { InterlockedMax(u[uint2(0, 0)], i.x); InterlockedMin(u[uint2(1, 0)], i.y); } [test] uniform 0 int4 1 -3 0 0 % SPIR-V compilation currently fails because of the mismatched resource type for u2. todo(mvk | vulkan | opengl | msl) dispatch 1 1 1 probe uav 2 (0) ri (1) probe uav 2 (1) ri (-3) uniform 0 int4 -3 1 0 0 todo(mvk | vulkan | opengl | msl) dispatch 1 1 1 probe uav 2 (0) ri (1) probe uav 2 (1) ri (-3) [uav 1] format r32-uint size (buffer, 3) 1 1 1 [uav 2] format r32-sint size (buffer, 3) 1 1 1 % The value fields of InterlockedMax/Min have the same type as the underlying scalar type of dst. % However, floating point numbers are always converted to signed integers. [compute shader fail(sm<5)] RWBuffer u : register(u1); RWBuffer s : register(u2); uniform uint i; uniform float a; [numthreads(3, 1, 1)] void main() { InterlockedMax(u[0], i); InterlockedMin(u[1], i); InterlockedMax(u[2], a); InterlockedMax(s[0], i); InterlockedMin(s[1], i); InterlockedMax(s[2], a); } [test] uniform 0 uint 0xffffffff uniform 1 float 0x80000000 todo(glsl | msl) dispatch 1 1 1 probe uav 1 (0) rui (0xffffffff) probe uav 1 (1) rui (1) probe uav 1 (2) rui (0x7fffffff) probe uav 2 (0) ri (1) probe uav 2 (1) ri (-1) probe uav 2 (2) rui (0x7fffffff) [uav 1] format r32-uint size (buffer, 5) 0 0 0xffffffff 0 0xffffffff [uav 2] format r32-sint size (buffer, 5) 0 0 -1 0 -1 % The value fields of other Interlocked functions are always uint. [compute shader fail(sm<5)] RWBuffer u : register(u1); RWBuffer s : register(u2); uniform uint i; uniform float a; [numthreads(3, 1, 1)] void main() { uint old; InterlockedAdd(u[0], i); InterlockedAdd(u[1], a); InterlockedAnd(u[2], a); InterlockedExchange(u[3], i, old); InterlockedCompareStore(u[4], a, 0); InterlockedAdd(s[0], i); InterlockedAdd(s[1], a); InterlockedAnd(s[2], a); InterlockedExchange(s[3], i, old); InterlockedCompareStore(s[4], a, 0); } [test] uniform 0 uint 0xffffffff uniform 1 float -1 todo(glsl | msl) dispatch 1 1 1 if(sm<6) probe uav 1 (0) rui (0xffffffff) if(sm>=6) probe uav 1 (0) rui (0xfffffffd) probe uav 1 (1) rui (0) probe uav 1 (2) rui (0) probe uav 1 (3) rui (0xffffffff) probe uav 1 (4) rui (0xffffffff) if(sm<6) probe uav 2 (0) ri (-1) if(sm>=6) probe uav 2 (0) rui (0xfffffffd) probe uav 2 (1) ri (0) probe uav 2 (2) ri (0) probe uav 2 (3) ri (-1) probe uav 2 (4) ri (-1) % Interlocked* functions return void. [compute shader fail] RWBuffer u : register(u1); [numthreads(3, 1, 1)] void main() { uint err = InterlockedAdd(u[0], 1); } [compute shader fail] RWBuffer u : register(u1); [numthreads(3, 1, 1)] void main() { uint old; uint err = InterlockedAdd(u[0], 1, old); } [compute shader fail] RWBuffer u : register(u1); [numthreads(3, 1, 1)] void main() { uint err = InterlockedCompareStore(u[0], 0, 1); } [compute shader fail] RWBuffer u : register(u1); [numthreads(3, 1, 1)] void main() { uint old; uint err = InterlockedCompareExchange(u[0], 0, 1, old); } % The underlying type of the destination parameter must be a scalar integer. [compute shader fail] RWBuffer u : register(u1); [numthreads(3, 1, 1)] void main() { InterlockedAdd(u[0], 1); } [compute shader fail] RWBuffer u : register(u1); [numthreads(3, 1, 1)] void main() { InterlockedAdd(u[0], 1); } [compute shader fail] RWBuffer u : register(u1); [numthreads(3, 1, 1)] void main() { InterlockedAdd(u[0], 1); }