[GSoC 2026] DCompute Vulkan Backend

[Quang Ha]

### My GSoC Progress: Week 3 Update

Hi everyone, this is my update for Week 3. This week, I did not 
write a lot of new code for the compiler. Instead, I focused on 
testing to make sure everything works correctly in real life!

#### 🛠️ What I Did This Week
    * **Added a new test file:** I wrote another test file for the 
compiler to generate the `.spv` file.
    * **Cloned a test project:** I cloned a repository called 
`vulkan_minimal_compute` from GitHub.
    * **Tested the Vulkan API:** I changed some code in the 
`vulkan_minimal_compute` project. I want to use it to run my 
generated `.spv` file. This helps me check if the Vulkan API can 
read and use my file correctly.

#### 🛑 Challenges
    * **Understanding the real environment:** It takes time to 
read and understand the `vulkan_minimal_compute` repo. Setting up 
a real Vulkan environment to test the `.spv` file is a bit slow 
and requires a lot of checking.

#### 🎯 Plans for Next Week
    * **Finish the API test:** I will finish modifying the 
`vulkan_minimal_compute` project and fully test my `.spv` file.
    * **Fix bugs (if any):** If the Vulkan API finds any problems 
with my `.spv` file, I will go back to the compiler and fix them.
    * **Wait for PR review:** I am still waiting for Nicholas to 
review my pull request so I can update my code.

#### 🔗 Resources & Code
* Commits/PRs: https://github.com/ldc-developers/ldc/pull/5132
* My Personal Blog: https://gnavdev28.github.io (nothing special 
yet :D)