On 11/16/19 6:55 AM, Richard Sandiford wrote:
> Empty vector constructors are equivalent to zero vectors. If we handle
> that case directly, we can support it for variable-length vectors and
> can hopefully make things more efficient for fixed-length vectors.
>
> This is needed by a later C++ patch.
>
> Tested on aarch64-linux-gnu and x86_64-linux-gnu. OK to install?
>
> Richard
>
>
> 2019-11-16 Richard Sandiford <richard.sandif...@arm.com>
>
> gcc/
> * tree.c (build_vector_from_ctor): Directly return a zero vector for
> empty constructors.
OK
jeff
