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| -rw-r--r-- | llvm/docs/ReleaseNotes.rst | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/llvm/docs/ReleaseNotes.rst b/llvm/docs/ReleaseNotes.rst index 6564e950968..df34d2a20da 100644 --- a/llvm/docs/ReleaseNotes.rst +++ b/llvm/docs/ReleaseNotes.rst @@ -87,6 +87,16 @@ Changes to the LLVM IR ``llvm.masked.gather`` and ``llvm.masked.scatter`` were introduced to the LLVM IR to allow selective memory access for vector data types. +Changes to LLVM's IPO model +--------------------------- + +LLVM no longer does inter-procedural analysis and optimization (except +inlining) on functions with comdat linkage. Doing IPO over such +functions is unsound because the implementation the linker chooses at +link-time may be differently optimized than the one what was visible +during optimization, and may have arbitrarily different observable +behavior. See `PR26774 <http://llvm.org/PR26774>`_ for more details. + Changes to the ARM Backend -------------------------- |
