[X86] Do not use movq in -mcmodel=kernel on an out of range abs global (#163323)

CFI can lead to some `relocation R_X86_64_32S out of range` errors when
using thinlto. We have an instance of an `inline_bits` alias with a
value of 0x8000008000000001 which cannot fit into a signed 32-bit reloc
hence the error. This reloc is used because the instruction for reading
the alias is `movq` which uses a signed 32-bit immediate. The proper
instruction to use in this instance is `movabs` for the full 64-bit
reloc.

Under the kernel model, a signed 32-bit immediate was always used but if
the target is a global with `absolue_symbol` we should reject the
MOV64ri32. The pattern matching logic will eventually lead to a match for
MOV64ri which emits the `movabs`.
2 files changed
tree: dd65935663b2cbbc2c0c215c0615b7168c6484fb
  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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