SKIP: https://github.com/microsoft/DirectXShaderCompiler/issues/3823 Validation Failure: void isNan_1280ab() { bool3 res = isnan(float3(0.0f, 0.0f, 0.0f)); } struct tint_symbol { float4 value : SV_Position; }; tint_symbol vertex_main() { isNan_1280ab(); const tint_symbol tint_symbol_1 = {float4(0.0f, 0.0f, 0.0f, 0.0f)}; return tint_symbol_1; } void fragment_main() { isNan_1280ab(); return; } [numthreads(1, 1, 1)] void compute_main() { isNan_1280ab(); return; } Internal Compiler error: cast() argument of incompatible type! Internal Compiler error: cast() argument of incompatible type! Internal Compiler error: cast() argument of incompatible type!