[llvm] [SPIR-V] Fix ExecutionMode generation (PR #143888)

[Steven Perron via llvm-commits]

s-perron wrote:

> > Can you add a test for this?
> 
> This requires a fragment shader with an input. Found it while building `vk::location`. For now we have no input on FS which builds correctly. Once we have a test using `vk::location` with FS, this will be covered

The problem seems to describe the interface variables being added. In later versions of SPIR-V, this includes resources. Can't you generate a sample with a storage buffer or something?


https://github.com/llvm/llvm-project/pull/143888