[llvm] [AMDGPU] SIWholeQuadMode: Ensure earliest WQM entry point for PS (PR #123266)

[Carl Ritson via llvm-commits]

perlfu wrote:

> > I wasn't sure - but was the original intent that shader should enter WQM as soon as possible - but there was a problem in the implementation (that this fixes)?
> 
> Answering my own question: yes, according to the description at the top.

Yes.  It's a problem I unintentionally created when I refactored the code last year.

https://github.com/llvm/llvm-project/pull/123266