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llvm / llvm-project / 14bdcefbd88f35e31064241b52bccfabfb027499
commit14bdcefbd88f35e31064241b52bccfabfb027499[log] [tgz]
authorAlexey Bataev <a.bataev@outlook.com>Thu Nov 21 13:21:00 2024 -0500
committerAlexey Bataev <a.bataev@outlook.com>Fri Nov 22 06:50:25 2024 -0800
treec1f88df94b00d098e997a89cc20429b3a3f04248
parentc7d5ef420d66bf321999a5c922dd6e77f8dc2e9d [diff]
[SLP]Model reduction_add(ext(<n x i1>)) as ext(ctpop(bitcast <n x i1> to int n))

Currently sequences reduction_add(ext(<n x i1>)) are modeled as vector
extensions + reduction add, but later instcombiner transforms it into
ext(ctcpop(bitcast <n x i1> to int n)). Patch adds direct support for
this in SLP vectorizer, which enables better cost estimation.

AVX512, -O3+LTO

CINT2006/445.gobmk - extra vector code
Prolangs-C/bison - extra vector code
Benchmarks/NPB-serial/is - 16 x + 8 x reductions vectorized as 24
x reduction

Reviewers: RKSimon

Reviewed By: RKSimon

Pull Request: https://github.com/llvm/llvm-project/pull/116875
3 files changed
tree: c1f88df94b00d098e997a89cc20429b3a3f04248
  1. .ci/
  2. .github/
  3. bolt/
  4. clang/
  5. clang-tools-extra/
  6. cmake/
  7. compiler-rt/
  8. cross-project-tests/
  9. flang/
  10. libc/
  11. libclc/
  12. libcxx/
  13. libcxxabi/
  14. libunwind/
  15. lld/
  16. lldb/
  17. llvm/
  18. llvm-libgcc/
  19. mlir/
  20. offload/
  21. openmp/
  22. polly/
  23. pstl/
  24. runtimes/
  25. third-party/
  26. utils/
  27. .clang-format
  28. .clang-tidy
  29. .git-blame-ignore-revs
  30. .gitattributes
  31. .gitignore
  32. .mailmap
  33. CODE_OF_CONDUCT.md
  34. CONTRIBUTING.md
  35. LICENSE.TXT
  36. pyproject.toml
  37. README.md
  38. SECURITY.md
README.md

The LLVM Compiler Infrastructure

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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.

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