On Fri, Jan 15, 2021 at 10:02:41PM +0100, Jakub Jelinek via Gcc-patches wrote:
> Like this?
Bootstrapped/regtested successfully on x86_64-linux and i686-linux.
> 2021-01-15 Jakub Jelinek <ja...@redhat.com>
>
> PR tree-optimization/96271
> * passes.def: Pass false argument to first two pass_cd_dce
> instances and true to last instance. Add comment that
> last instance rewrites no longer addressed locals.
> (pass_cd_dce): Add update_address_taken_p member and initialize it.
> (pass_cd_dce::set_pass_param): New method.
> (pass_cd_dce::execute): Return TODO_update_address_taken from
> last cd_dce instance.
>
> * gcc.target/i386/pr96271.c: New test.
Jakub
