Author: prazek Date: Sun Jan 15 16:38:15 2017 New Revision: 292080 URL: http://llvm.org/viewvc/llvm-project?rev=292080&view=rev Log: Mention Devirtualization and ThinLTO in ReleaseNotes
This might require some small fixits after generating doc Devirtualization: https://reviews.llvm.org/D28606 ThinLTO: https://reviews.llvm.org/D28746 Modified: cfe/branches/release_40/docs/ReleaseNotes.rst Modified: cfe/branches/release_40/docs/ReleaseNotes.rst URL: http://llvm.org/viewvc/llvm-project/cfe/branches/release_40/docs/ReleaseNotes.rst?rev=292080&r1=292079&r2=292080&view=diff ============================================================================== --- cfe/branches/release_40/docs/ReleaseNotes.rst (original) +++ cfe/branches/release_40/docs/ReleaseNotes.rst Sun Jan 15 16:38:15 2017 @@ -46,8 +46,34 @@ Major New Features clang to emit a warning or error if a function call meets one or more user-specified conditions. +- Enhanced devirtualization with + '-fstrict-vtable-pointers <http://clang.llvm.org/docs/UsersManual.html#cmdoption-fstrict-vtable-pointers>`_. + Clang devirtualizes across different basic blocks, like loops: + + .. code-block:: c++ + struct A { + virtual void foo(); + }; + void indirect(A &a, int n) { + for (int i = 0 ; i < n; i++) + a.foo(); + } + void test(int n) { + A a; + indirect(a, n); + } + + - ... +Improvements to ThinLTO (-flto=thin) +------------------------------------ +- Integration with profile data (PGO). When available, profile data enables + more accurate function importing decisions, as well as cross-module indirect + call promotion. +- Significant build-time and binary-size improvements when compiling with debug + info (-g). + Improvements to Clang's diagnostics ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ _______________________________________________ llvm-branch-commits mailing list llvm-branch-commits@lists.llvm.org http://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-branch-commits
