[all-commits] [llvm/llvm-project] 8bcb07: [Clang] -fseparate-named-sections option (#91028)

[Petr Hosek via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 8bcb0737056163686e967821bea7f9e87c57cdfc
      https://github.com/llvm/llvm-project/commit/8bcb0737056163686e967821bea7f9e87c57cdfc
  Author: Petr Hosek <phosek at google.com>
  Date:   2024-05-07 (Tue, 07 May 2024)

  Changed paths:
    M clang/docs/ReleaseNotes.rst
    M clang/include/clang/Basic/CodeGenOptions.def
    M clang/include/clang/Driver/Options.td
    M clang/lib/CodeGen/BackendUtil.cpp
    A clang/test/CodeGen/fseparate-named-sections.c
    M llvm/include/llvm/CodeGen/CommandFlags.h
    M llvm/include/llvm/Target/TargetMachine.h
    M llvm/include/llvm/Target/TargetOptions.h
    M llvm/lib/CodeGen/CommandFlags.cpp
    M llvm/lib/CodeGen/TargetLoweringObjectFileImpl.cpp
    A llvm/test/CodeGen/X86/elf-separate-named-sections.ll

  Log Message:
  -----------
  [Clang] -fseparate-named-sections option (#91028)

When set, the compiler will use separate unique sections for global
symbols in named special sections (e.g. symbols that are annotated with
__attribute__((section(...)))). Doing so enables linker GC to collect
unused symbols without having to use a different section per-symbol.



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