[lld][Mips] Remove signed range check for R_MICROMIPS_26_S1 (#228880)

R_MICROMIPS_26_S1 encodes a shifted index within the current PC region,
not a signed absolute address. Applying the PC-relative relocation's
signed 27-bit check rejects valid destinations in higher address
regions.

Write the jump index without that check, as for R_MIPS_26, while
retaining
the signed range check for R_MICROMIPS_PC26_S1. Cover both jumps and
calls
at a high address in little- and big-endian objects.

Assisted-by: OpenAI Codex # Testcases
GitOrigin-RevId: 2f99c9c58eb656ae80f621d9afdfa700d693d78d
2 files changed
tree: 41fd119678089b306b14a35b3b63dd3c7d5680cb
  1. cmake/
  2. COFF/
  3. Common/
  4. docs/
  5. ELF/
  6. include/
  7. MachO/
  8. MinGW/
  9. test/
  10. tools/
  11. unittests/
  12. utils/
  13. wasm/
  14. .clang-format
  15. .clang-tidy
  16. .gitignore
  17. CMakeLists.txt
  18. LICENSE.TXT
  19. Maintainers.md
  20. README.md
README.md

LLVM Linker (lld)

This directory and its subdirectories contain source code for the LLVM Linker, a modular cross platform linker which is built as part of the LLVM compiler infrastructure project.

lld is open source software. You may freely distribute it under the terms of the license agreement found in LICENSE.txt.

Benchmarking

In order to make sure various developers can evaluate patches over the same tests, we create a collection of self contained programs.

It is hosted at https://s3-us-west-2.amazonaws.com/linker-tests/lld-speed-test.tar.xz

The current sha256 is 10eec685463d5a8bbf08d77f4ca96282161d396c65bd97dc99dbde644a31610f.