[SPIR-V] Stop generating StorageImageReadWithoutFormat and StorageImageWriteWithoutFormat for the Unknown image format in the OpenCL environment (#128497)

This PR resolves the issue of the SPIR-V specification, requiring
Shader-coupled capabilities to read/write images in the OpenCL SPIR-V
environment, from the perspective of the LLVM SPIR-V backend. See
https://github.com/KhronosGroup/SPIRV-Headers/issues/487 for details and
discussion.

Current implementation correctly reproduces requirements of the SPIR-V
specification, however, since the requirements are problematic, out
current implementation blocks generation of valid SPIR-V code for
compute environments. This PR is to implement a solution discussed at
the SPIR-V WG to allow proceeding with generation of valid SPIR-V code
for the OpenCL environment and do not impact Vulkan environment at the
same time.
3 files changed
tree: bbca9ac29125bbd99a77164ed2804a63d12fd5fb
  1. .ci/
  2. .github/
  3. bolt/
  4. clang/
  5. clang-tools-extra/
  6. cmake/
  7. compiler-rt/
  8. cross-project-tests/
  9. flang/
  10. flang-rt/
  11. libc/
  12. libclc/
  13. libcxx/
  14. libcxxabi/
  15. libunwind/
  16. lld/
  17. lldb/
  18. llvm/
  19. llvm-libgcc/
  20. mlir/
  21. offload/
  22. openmp/
  23. polly/
  24. pstl/
  25. runtimes/
  26. third-party/
  27. utils/
  28. .clang-format
  29. .clang-tidy
  30. .git-blame-ignore-revs
  31. .gitattributes
  32. .gitignore
  33. .mailmap
  34. CODE_OF_CONDUCT.md
  35. CONTRIBUTING.md
  36. LICENSE.TXT
  37. pyproject.toml
  38. README.md
  39. SECURITY.md
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