On Saturday 22 April 2017, Allan Sandfeld Jensen wrote:
> Replaces definitions of immediate logical shift intrinsics with GCC
> extension syntax. Tests are added to ensure the intrinsics still produce
> the right instructions and that a few basic optimizations now work.
> 
> Compared to the earlier version of the patch, all potentially undefined
> shifts are now avoided, which also means no variable shifts or arithmetic
> right shifts.

Fixed 2 errors in the tests.