[all-commits] [llvm/llvm-project] 691892: [clang] Ensure -mno-outline adds attributes

[Sam Elliott via All-commits]

  Branch: refs/heads/users/lenary/clangensure-mno-outlineaddsattributes
  Home:   https://github.com/llvm/llvm-project
  Commit: 691892dacfd5404350674ea86b7395fcdf190655
      https://github.com/llvm/llvm-project/commit/691892dacfd5404350674ea86b7395fcdf190655
  Author: Sam Elliott <aelliott at qti.qualcomm.com>
  Date:   2026-02-10 (Tue, 10 Feb 2026)

  Changed paths:
    M clang/include/clang/Basic/CodeGenOptions.def
    M clang/include/clang/Options/Options.td
    M clang/lib/CodeGen/CodeGenModule.cpp
    M clang/lib/Driver/ToolChains/CommonArgs.cpp
    M clang/test/CodeGen/attr-no-outline.c
    M clang/test/Driver/aarch64-outliner.c
    M clang/test/Driver/arm-machine-outliner.c
    M clang/test/Driver/riscv-outliner.c
    M clang/test/Driver/x86-outliner.c

  Log Message:
  -----------
  [clang] Ensure -mno-outline adds attributes

Before this change, `-mno-outline` and `-moutline` only controlled the
pass pipelines for the invoked compiler/linker.

The drawback of this implementation is that, when using LTO, only the
flag provided to the linker invocation is honoured (and any files which
individually use `-mno-outline` will have that flag ignored).

This change serialises the `-mno-outline` flag into each function's
IR/Bitcode, so that we can correctly disable outlining from functions in
files which disabled outlining, without affecting outlining choices for
functions from other files. This matches how other optimisation flags
are handled so the IR/Bitcode can be correctly merged during LTO.


  Commit: f1dc20d67fba07e48c1f760f9e68c4afb3872810
      https://github.com/llvm/llvm-project/commit/f1dc20d67fba07e48c1f760f9e68c4afb3872810
  Author: Sam Elliott <aelliott at qti.qualcomm.com>
  Date:   2026-02-10 (Tue, 10 Feb 2026)

  Changed paths:
    M clang/docs/ReleaseNotes.rst

  Log Message:
  -----------
  Release Note


Compare: https://github.com/llvm/llvm-project/compare/7d98b0155d10...f1dc20d67fba

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