[MLIR][GPU] Update serializeToObject to use SerializedObject wrapper and include ISA compiler logs (#176697)

This PR makes the compilation log from ISA compiler available to users
by returning it as part of the `gpu::ObjectAttr` properties, following
the existing pattern like `LLVMIRToISATimeInMs`.

Currently, the compiler log (which contains useful information such as
spill statistics when --verbose is passed) is only accessible in debug
builds via `LLVM_DEBUG`. However, there are good reasons to make this
information available in release builds as well:

1. Both `ptxas` and `libnvptxcompiler` are publicly available
tools/libraries distributed with the CUDA Toolkit. The `--verbose` flag
and its output are documented public features, not internal debug
information.
2. The verbose output provides valuable insights for users.

A new `SerializedObject` class is used to carry the metadata alongside
the binary when returning from `serializeObject`.
14 files changed
tree: 6390359e2e03ed29e9ecbb3b87ab47537e1cab9c
  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. libsycl/
  16. libunwind/
  17. lld/
  18. lldb/
  19. llvm/
  20. llvm-libgcc/
  21. mlir/
  22. offload/
  23. openmp/
  24. orc-rt/
  25. polly/
  26. runtimes/
  27. third-party/
  28. utils/
  29. .clang-format
  30. .clang-format-ignore
  31. .clang-tidy
  32. .git-blame-ignore-revs
  33. .gitattributes
  34. .gitignore
  35. .mailmap
  36. CODE_OF_CONDUCT.md
  37. CONTRIBUTING.md
  38. LICENSE.TXT
  39. pyproject.toml
  40. README.md
  41. SECURITY.md
README.md

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