Re: [PATCH v21 0/4] MR346: tests/shader-runner: Test DXIL shaders.

[Zebediah Figura (＠zfigura)]

Zebediah Figura (@zfigura) commented about tests/hlsl/duplicate-modifiers.shader_test:
> +% Returns (0.1, 0.3, 0.2, 0.4) with dxcompiler
> +[require]
> +shader model < 6.0
> -

Wow, I guess this is a dxcompiler bug.

I managed reduce it down to this minimal case:

float4 main() : sv_target
{
    const row_major float2x2 mat = float2x2(1.0, 2.0, 3.0, 4.0);
    return mat;
}

The bug really needs "const" or it doesn't manifest. It also doesn't manifest if you use a braced initializer instead of a constructor.

Also, even better, if you change "float2x2" to "float4" you get an ICE :D