[pixel shader] // 'precise' is not a keyword float4 precise; float4 main() : sv_target { return precise; } [test] uniform 0 float4 0.1 0.2 0.3 0.4 todo(glsl) draw quad probe (0, 0) rgba (0.1, 0.2, 0.3, 0.4) [pixel shader fail(sm>=6)] precise float4 var; typedef float4 precise; precise main() : sv_target { return var; } [test] uniform 0 float4 0.1 0.2 0.3 0.4 todo(glsl) draw quad probe (0, 0) rgba (0.1, 0.2, 0.3, 0.4) [pixel shader] float4 precise; precise float4 var; float4 main() : sv_target { return precise; } [test] uniform 0 float4 0.1 0.2 0.3 0.4 todo(glsl) draw quad probe (0, 0) rgba (0.1, 0.2, 0.3, 0.4)