Google Git
Sign in
llvm / llvm-project / 004c67ea257039e4e98abc26dd4ac6e8f3d7a171
commit004c67ea257039e4e98abc26dd4ac6e8f3d7a171[log] [tgz]
authorFlorian Hahn <flo@fhahn.com>Fri Jul 18 22:58:19 2025 +0200
committerGitHub <noreply@github.com>Fri Jul 18 21:58:19 2025 +0100
tree24d7ae02719807bb7d7aa3b7a6ffeb57c75c0913
parent695660cdfd1ca65cd6e02e6950d10c990dfa0036 [diff]
[LV] Vectorize maxnum/minnum w/o fast-math flags. (#148239)

Update LV to vectorize maxnum/minnum reductions without fast-math flags,
by adding an extra check in the loop if any inputs to maxnum/minnum are
NaN, due to maxnum/minnum behavior w.r.t to signaling NaNs. Signed-zeros 
are already handled consistently by maxnum/minnum.

If any input is NaN,
 *exit the vector loop,
 *compute the reduction result up to the vector iteration that contained
   NaN inputs and
 * resume in the scalar loop


New recurrence kinds are added for reductions using maxnum/minnum
without fast-math flags.

PR: https://github.com/llvm/llvm-project/pull/148239
16 files changed
tree: 24d7ae02719807bb7d7aa3b7a6ffeb57c75c0913
  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. runtimes/
  25. third-party/
  26. utils/
  27. .clang-format
  28. .clang-format-ignore
  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
README.md

The LLVM Compiler Infrastructure

OpenSSF Scorecard OpenSSF Best Practices libc++

Welcome to the LLVM project!

This repository contains the source code for LLVM, a toolkit for the construction of highly optimized compilers, optimizers, and run-time environments.

The LLVM project has multiple components. The core of the project is itself called “LLVM”. This contains all of the tools, libraries, and header files needed to process intermediate representations and convert them into object files. Tools include an assembler, disassembler, bitcode analyzer, and bitcode optimizer.

C-like languages use the Clang frontend. This component compiles C, C++, Objective-C, and Objective-C++ code into LLVM bitcode -- and from there into object files, using LLVM.

Other components include: the libc++ C++ standard library, the LLD linker, and more.

Getting the Source Code and Building LLVM

Consult the Getting Started with LLVM page for information on building and running LLVM.

For information on how to contribute to the LLVM project, please take a look at the Contributing to LLVM guide.

Getting in touch

Join the LLVM Discourse forums, Discord chat, LLVM Office Hours or Regular sync-ups.

The LLVM project has adopted a code of conduct for participants to all modes of communication within the project.