Indexable temporaries tests in HLSL

indexable-temps.hlsl

// This works (compiled with: fxc /T ps_5_0 /E main foo.hlsl)
float main (in uint x:X) : SV_Target0
{
	float a[12] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, };

	// Put some things in the array
	a[x] = 47.0;
	a[x&7] = 42.0;
	a[(x+1)%12] = 3.14159;

	// Return something from the array
	return a[(x*x+3)%12];
}

// This doesn't work: gives error X3500: array reference cannot be used as an l-value; not natively addressable
struct S { float a[12]; };
float main (in uint x:X) : SV_Target0
{
	S s = (S)0;

	// Put some things in the array
	s.a[x] = 47.0;
	s.a[x&7] = 42.0;
	s.a[(x+1)%12] = 3.14159;

	// Return something from the array
	return s.a[(x*x+3)%12];
}

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