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llvm / llvm-project / 3fcfce4c5e5fd1c3072e8db1d692c93459e8cd74
commit3fcfce4c5e5fd1c3072e8db1d692c93459e8cd74[log] [tgz]
authorFlorian Hahn <flo@fhahn.com>Sat May 17 10:51:05 2025 +0100
committerFlorian Hahn <flo@fhahn.com>Sat May 17 10:51:05 2025 +0100
tree12d6e0f287ac3788eaeca321c4a49e2e1a6a482a
parent676e660e2dafea6d0f720d2b712dd39fac10e7de [diff]
Reapply "[LoopPeel] Implement initial peeling off the last loop iteration. (#139551)"

This reverts the revert commit bf92b127d2637948f53d11a187e865aa10e2e74c.

This adds missing initialization of PeelLast in gatherPeelingPreferences.

Original message:
Generalize countToEliminateCompares to also consider peeling off the
last iteration if it eliminates a compare.

At the moment, codegen for peeling off the last iteration is quite
restrictive and callers have to make sure that the exit condition can be
adjusted when peeling and that the loop executes at least 2 iterations.

Both will be relaxed in follow-ups.

PR: https://github.com/llvm/llvm-project/pull/139551
6 files changed
tree: 12d6e0f287ac3788eaeca321c4a49e2e1a6a482a
  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-format-ignore
  30. .clang-tidy
  31. .git-blame-ignore-revs
  32. .gitattributes
  33. .gitignore
  34. .mailmap
  35. CODE_OF_CONDUCT.md
  36. CONTRIBUTING.md
  37. LICENSE.TXT
  38. pyproject.toml
  39. README.md
  40. SECURITY.md
README.md

The LLVM Compiler Infrastructure

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