[COMMITTED 4/4] PR tree-optimization/102540 - propagate partial equivs in the cache.

[H.J. Lu]

On Thu, Oct 13, 2022 at 8:32 AM Andrew MacLeod via Gcc-patches
<gcc-patches@gcc.gnu.org> wrote:
>
> Rangers on entry cache propagation already evaluates equivalences when
> calculating values. This patch also allows it to work with partial
> equivalences, and if the bit sizes are compatible, make use of those
> ranges as well.
>
> It attempts to be conservative, so should be safe.
>
> This resolves regressions in both PR 102540 and PR 102872.
>
> Bootstrapped on x86_64-pc-linux-gnu with no regressions.  Pushed
>
> Andrew

This caused:

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107273

-- 
H.J.