[PATCH] Fix PR34176, SCCVN miscompile of gettext

[Daniel Berlin]

On 11/23/07, Richard Guenther <rguenther@suse.de> wrote:
>
> This fixes aforementioned PR by clearing the optimistic tables before
> each iteration.  I tested a version that didn't empty the alloc pools
> on C++ and SPEC with no visible changes in compile-time, memory-usage
> or runtime performance.
>
> Bootstrapped and tested on x86_64-unknown-linux-gnu, ok for mainline?

okay by me