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llvm / llvm-project / ed07412888e2ef5a1f36a48eb5a280050e223fad
commited07412888e2ef5a1f36a48eb5a280050e223fad[log] [tgz]
authorjeanPerier <jperier@nvidia.com>Tue May 20 16:11:27 2025 +0200
committerGitHub <noreply@github.com>Tue May 20 16:11:27 2025 +0200
tree0001e8c4f51c06fb4b3494ba5f159923899ef986
parentc19a3cb613bd43813f30d98d34808430ff95b202 [diff]
[flang] translate derived type array init to attribute if possible (#140268)

This patch relies on #140235 and #139724 to speed-up compilations of
files with derived type array global with initial value.
Currently, such derived type global init was lowered to an
llvm.mlir.insertvalue chain in the LLVM IR dialect because there was no
way to represent such value via attributes.

This chain was later folded in LLVM dialect to LLVM IR using LLVM IR
(not dialect) folding. This insert chain generation and folding is very
expensive for big arrays. For instance, this patch brings down the
compilation of FM_lib fmsave.f95 from 50s
to 0.5s.
7 files changed
tree: 0001e8c4f51c06fb4b3494ba5f159923899ef986
  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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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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