[Bug tree-optimization/86723] not optimizing with bswap, that casts to int aftwards

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86723

Andrew Pinski <pinskia at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Last reconfirmed|2018-07-29 00:00:00         |2021-8-19

--- Comment #4 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
clang:
        movabsq $72057589742960640, %rax        # imm = 0xFFFFFF00000000
        andq    %rdi, %rax
        bswapq  %rax
        shrq    $56, %rdi
        orl     %edi, %eax

ICC:
        bswap     %rdi                                          #11.51
        movl      %edi, %eax                                    #11.51
        ret        


ICC looks like it is able to do it correctly.