[PATCH 4/7] d3dcompiler: Unwrap swizzles from the left-hand side of an assignment.

[Zebediah Figura]

On 3/12/20 8:05 AM, Matteo Bruni wrote:
> Signed-off-by: Matteo Bruni <mbruni at codeweavers.com>
> ---
> I stared at invert_swizzle() an inordinate amount of time and I
> eventually convinced myself it's correct, or at least sensible. I'm
> going to require more swizzle tests when the compiler will actually
> start to work. I assume you already have a bunch for this but,
> obviously, tests with multiple LHS swizzles would be particularly
> interesting.
> 

I'll admit I'm not happy about the code at all, but it's a complex 
operation and I haven't proven skilled enough to write anything better.

I'll at least add some more tests.