[pixel shader] float4 main() : SV_TARGET { float4 arr[] = {10, 20, 30, 40, 50, 60, 70, 80}; return arr[1]; } [test] draw quad probe all rgba (50, 60, 70, 80) % dxcompiler emits a nop shader which returns immediately. [require] shader model < 6.0 [pixel shader] float4 main() : sv_target { float4 arr1[2] = {1, 2, 3, 4, 5, 6, 7, 8}; float4 arr2[] = arr1; return arr2[1]; } [test] draw quad probe all rgba (5.0, 6.0, 7.0, 8.0) [require] % reset requirements [pixel shader] float4 main() : sv_target { float2 arr[][3] = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12}; return float4(arr[1][0], arr[1][1]); } [test] draw quad probe all rgba (7.0, 8.0, 9.0, 10.0) [pixel shader] struct foo { float3 foo1; float4 foo2; }; struct bar { struct foo aa; int2 bb; float4 cc[2]; }; float4 main() : SV_TARGET { struct bar p[] = { 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 201, 202, 203, 204, 205, 206, 207, 208, 209, 210, 211, 212, 213, 214, 215, 216, 217, }; return p[0].aa.foo2 + p[1].cc[1]; } [test] draw quad probe all rgba (318.0, 320.0, 322.0, 324.0) [pixel shader fail] // Incompatible number of arguments in implicit size array initializer float4 main() : SV_TARGET { float4 arr[] = {10, 20, 30, 40, 50, 60, 70}; return 0.0; } [pixel shader fail] // Incompatible number of arguments in implicit size array initializer float4 main() : SV_TARGET { float4 arr[] = {10, 20, 30, 40, 50, 60, 70, 80, 90}; return 0.0; } [pixel shader fail] // Implicit size inner array float4 main() : sv_target { float2 arr[3][] = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12}; return 0.0; } [pixel shader fail] // Implicit size array without initializer float4 main() : sv_target { float4 arr[]; return 0.0; } [pixel shader fail] // Implicit size array as struct member struct foobar { int a; float4 arr[]; }; float4 main() : sv_target { struct foobar s; return 0.0; } [pixel shader fail(sm<6)] // Implicit size array as function argument float4 fun(float4 arr[]) { return 1.0; } float4 main() : sv_target { float4 arr[3] = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12}; return fun(arr); } [pixel shader fail] // Implicit size array as function return type // Note: explicit size arrays are not allowed either. float4[] fun() { float4 ret[2] = {1, 2, 3, 4, 5, 6, 7, 8}; return ret; } float4 main() : sv_target { fun(); return 0.0; } [pixel shader fail(sm<6)] // Implicit size array as a typedef typedef float4 arrtype[]; float4 main() : sv_target { arrtype arr1 = {1, 2, 3, 4, 5, 6, 7, 8}; return 0.0; } [pixel shader fail] // Implicit size array of elements of size 0, without initializer struct emp { }; float4 main() : sv_target { struct emp arr[]; return 0.0; } [pixel shader fail] // Implicit size array with an initializer of size 0 struct emp { }; float4 main() : sv_target { float4 arr[] = (struct emp) 42; return 0.0; } % dxcompiler crashes. [require] shader model < 6.0 [pixel shader fail] // Implicit size array as a cast float4 main() : sv_target { float2 arr1[4] = {1, 2, 3, 4, 5, 6, 7, 8}; float4 arr2[2] = (float4 []) arr1; return 0.0; } [pixel shader fail] // Implicit size array of elements of size 0 struct emp { }; float4 main() : sv_target { struct emp arr[] = {1, 2, 3, 4}; return 0.0; } [pixel shader fail] // Broadcast to an implicit size array float4 main() : sv_target { int a[4] = (int[]) 0; return 0.0; } [pixel shader fail] // Implicit size array of elements of size 0 with initializer of size 0 struct emp { }; float4 main() : sv_target { struct emp arr[] = (struct emp) 42; return 0.0; }