Revert "Enable logf128 constant folding for hosts with 128bit long double (#104929)"

ConstantFolding behaves differently depending on host's `HAS_IEE754_FLOAT128`.
LLVM should not change the behavior depending on host configurations.

This reverts commit 14c7e4a1844904f3db9b2dc93b722925a8c66b27.
(llvmorg-20-init-3262-g14c7e4a18449 and llvmorg-20-init-3498-g001e423ac626)

patch.cherry: true
patch.metadata.original_sha: 3ef64f7ab5b8651eab500cd944984379fce5f639
patch.platforms: chromiumos
patch.version_range.from: 547379
patch.version_range.until: 547478

Change-Id: I238a87e782ed84cc89c7170658e972dba69c7f56
8 files changed
tree: 5c39468ae505a900ed171dca3896b8743a3ec86a
  1. .ci/
  2. .github/
  3. bolt/
  4. clang/
  5. clang-tools-extra/
  6. cmake/
  7. compiler-rt/
  8. cros/
  9. cross-project-tests/
  10. flang/
  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-tidy
  30. .git-blame-ignore-revs
  31. .gitattributes
  32. .gitignore
  33. .mailmap
  34. CODE_OF_CONDUCT.md
  35. CONTRIBUTING.md
  36. LICENSE.TXT
  37. OWNERS
  38. OWNERS.toolchain
  39. PRESUBMIT.cfg
  40. pyproject.toml
  41. README.md
  42. 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.

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.