Array bound with static const variable

Hello,

In some cases(namely type conversions) DXC compiler do not allow to use static const variables as an array bounds.

First case:

static const float ARRAY_SIZE = 1;

float4 main() : SV_Target
{
    float array[uint(ARRAY_SIZE)] = { 1.0f };
    return (float4)0;
}

Second case:

static const float ARRAY_SIZE = 1;
static const uint ARRAY_SIZE_UINT = (uint)ARRAY_SIZE;

float4 main() : SV_Target
{
    float array[ARRAY_SIZE_UINT] = { 1.0f };
    return (float4)0;
}

This same code compiles successfully with FXC.
While DXC returns "error: variable length arrays are not supported in HLSL".

Thanks,
Oleksandr

Start by reproducing both HLSL examples with DXC and comparing their results with FXC, focusing on the diagnostic that reports variable length arrays. Done means DXC accepts static const float and converted uint values as array bounds, with regression coverage for both examples.