[Bug target/110104] gcc produces sub-optimal code for _addcarry_u64 chain

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=110104

Jakub Jelinek <jakub at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         Resolution|---                         |FIXED
             Status|NEW                         |RESOLVED

--- Comment #3 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC trunk now emits
        movq    %rsi, %rax
        mulq    %rdx
        addq    %rax, (%rdi)
        adcq    %rdx, 8(%rdi)
        adcq    $0, 16(%rdi)
        ret