[patch] Fix PR middle-end/46894

[Eric Botcazou]

> FWIW, the posted patch reg-strapped on powerpc-darwin9 and fixes the
> bug.
> (not that I'm suggesting the additional deliberations are unnecessary
> - just a data point).

Thanks for the testing.

Here's my proposal: let's fix the regression by applying my original patch and 
open a new PR with Richard's patch attached and 4.7 as target milestone.

-- 
Eric Botcazou