November 18, 2011
  Branch: refs/heads/master
  Home:   https://github.com/D-Programming-Language/dmd

  Commit: b1a31e2e9f35e523777467ae74eebfc99a3bb193
      https://github.com/D-Programming-Language/dmd/commit/b1a31e2e9f35e523777467ae74eebfc99a3bb193
  Author: Walter Bright <walter at walterbright.com>
  Date:   2011-11-18 (Fri, 18 Nov 2011)

  Changed paths:
    M src/backend/cod4.c

  Log Message:
  -----------
  Issue 5364 - optimizer kills high dword of -1


November 18, 2011
On 18 November 2011 09:54,  <noreply at github.com> wrote:
> ?Branch: refs/heads/master
> ?Home: ? https://github.com/D-Programming-Language/dmd
>
> ?Commit: b1a31e2e9f35e523777467ae74eebfc99a3bb193
> ? ? ?https://github.com/D-Programming-Language/dmd/commit/b1a31e2e9f35e523777467ae74eebfc99a3bb193
> ?Author: Walter Bright <walter at walterbright.com>
> ?Date: ? 2011-11-18 (Fri, 18 Nov 2011)
>
> ?Changed paths:
> ? ?M src/backend/cod4.c
>
> ?Log Message:
> ?-----------
> ?Issue 5364 - optimizer kills high dword of -1

Maybe this fixes bug 6354 as well.