Author: Teresa Johnson Date: 2020-09-15T08:51:56-07:00 New Revision: d3f1f588f902a968f102d6cdaf052674efc257aa
URL: https://github.com/llvm/llvm-project/commit/d3f1f588f902a968f102d6cdaf052674efc257aa DIFF: https://github.com/llvm/llvm-project/commit/d3f1f588f902a968f102d6cdaf052674efc257aa.diff LOG: [Docs] Add/update release notes for D71913 (LTO WPD changes) This adds documentation for the options added / changed by D71913, which enabled aggressive WPD under LTO. The lld release notes already mentioned it, but I expanded the note. Differential Revision: https://reviews.llvm.org/D86958 Added: Modified: clang/docs/ReleaseNotes.rst lld/docs/ReleaseNotes.rst llvm/docs/ReleaseNotes.rst Removed: ################################################################################ diff --git a/clang/docs/ReleaseNotes.rst b/clang/docs/ReleaseNotes.rst index ee257194d57f..d90b8f182ef9 100644 --- a/clang/docs/ReleaseNotes.rst +++ b/clang/docs/ReleaseNotes.rst @@ -306,7 +306,8 @@ Modified Compiler Flags - -mcpu is now supported for RISC-V, and recognises the generic-rv32, rocket-rv32, sifive-e31, generic-rv64, rocket-rv64, and sifive-u54 target CPUs. - +- ``-fwhole-program-vtables`` (along with ``-flto*``) now prepares all classes for possible whole program visibility if specified during the LTO link. + (`D71913 <https://reviews.llvm.org/D71913>`_) New Pragmas in Clang -------------------- diff --git a/lld/docs/ReleaseNotes.rst b/lld/docs/ReleaseNotes.rst index 466a7f707354..880f933e51be 100644 --- a/lld/docs/ReleaseNotes.rst +++ b/lld/docs/ReleaseNotes.rst @@ -26,7 +26,7 @@ ELF Improvements * ``--lto-emit-asm`` is added to emit assembly output for debugging purposes. (`D77231 <https://reviews.llvm.org/D77231>`_) -* ``--lto-whole-program-visibility`` is added to support LTO whole-program devirtualization. +* ``--lto-whole-program-visibility`` is added to specify that classes have hidden LTO visibility in LTO and ThinLTO links of source files compiled with ``-fwhole-program-vtables``. See `LTOVisibility <https://clang.llvm.org/docs/LTOVisibility.html>`_ for details. (`D71913 <https://reviews.llvm.org/D71913>`_) * ``--print-archive-stats=`` is added to print the number of members and the number of fetched members for each archive. The feature is similar to GNU gold's ``--print-symbol-counts=``. diff --git a/llvm/docs/ReleaseNotes.rst b/llvm/docs/ReleaseNotes.rst index 0d5e0137bbc4..e87bf3d146f5 100644 --- a/llvm/docs/ReleaseNotes.rst +++ b/llvm/docs/ReleaseNotes.rst @@ -333,6 +333,12 @@ Changes to the Debug Info passed to the callee. The feature improves the debugging user experience when debugging optimized code. +Changes to the Gold Plugin +-------------------------- + +* ``--plugin-opt=whole-program-visibility`` is added to specify that classes have hidden LTO visibility in LTO and ThinLTO links of source files compiled with ``-fwhole-program-vtables``. See `LTOVisibility <https://clang.llvm.org/docs/LTOVisibility.html>`_ for details. + (`D71913 <https://reviews.llvm.org/D71913>`_) + Changes to the LLVM tools --------------------------------- _______________________________________________ llvm-branch-commits mailing list llvm-branch-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-branch-commits
