[Bug libstdc++/108856] Increment and decrement on std::experimental::where_expression should optimize better

[cvs-commit at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=108856

--- Comment #3 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The releases/gcc-12 branch has been updated by Matthias Kretz
<mkr...@gcc.gnu.org>:

https://gcc.gnu.org/g:4452077962d0c327dcb08670ab73f7197be53e91

commit r12-9640-g4452077962d0c327dcb08670ab73f7197be53e91
Author: Matthias Kretz <m.kr...@gsi.de>
Date:   Mon Feb 20 16:33:31 2023 +0100

    libstdc++: More efficient masked inc-/decrement implementation

    Signed-off-by: Matthias Kretz <m.kr...@gsi.de>

    libstdc++-v3/ChangeLog:

            PR libstdc++/108856
            * include/experimental/bits/simd_builtin.h
            (_SimdImplBuiltin::_S_masked_unary): More efficient
            implementation of masked inc-/decrement for integers and floats
            without AVX2.
            * include/experimental/bits/simd_x86.h
            (_SimdImplX86::_S_masked_unary): New. Use AVX512 masked subtract
            builtins for masked inc-/decrement.

    (cherry picked from commit 6ce55180d494b616e2e3e68ffedfe9007e42ca06)