test/tint/expressions/type_conv/vec4/function/f32-f16.wgsl

// flags:  --hlsl_shader_model 62
enable f16;
var<private> t : f32;
fn m() -> vec4<f32> {
    t = 1.0f;
    return vec4<f32>(t);
}
fn f() {
    var v : vec4<f16> = vec4<f16>(m());
}