https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111457

Filip Kastl <pheeck at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |pheeck at gcc dot gnu.org
             Status|UNCONFIRMED                 |RESOLVED
         Resolution|---                         |FIXED
           Keywords|needs-bisection             |

--- Comment #2 from Filip Kastl <pheeck at gcc dot gnu.org> ---
Indeed. Current trunk successfully eliminates the call to foo.

gcc testcase.c -S -O2

main: 
        movl    $0, a(%rip)    
        xorl    %eax, %eax    
        movl    $6, b(%rip)    
        movl    $0, d(%rip)    
        ret

Setting this as fixed.

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