On 01/07/2018 03:26 AM, Richard Sandiford wrote:
> r254296 added support for (const ...) wrappers around vectors,
> but in the end the agreement was to use a variable-length
> encoding of CONST_VECTOR (and VECTOR_CST) instead. This patch
> therefore reverts the bits that are no longer needed.
>
> The rtl.texi part isn't a full revert, since r254296 also updated the
> documentation to mention unspecs in address calculations, and to relax
> the requirement that the mode had to be Pmode (it can also be ptr_mode
> on target where Pmode != ptr_mode).
>
> Tested on aarch64-linux-gnu. OK to install? (Although AIUI reverts
> don't normally need approval, I thought I'd better ask given the
> rtl.texi thing.)
>
> Richard
>
>
> 2018-01-06 Richard Sandiford <richard.sandif...@linaro.org>
>
> gcc/
> * doc/rtl.texi: Remove documentation of (const ...) wrappers
> for vectors, as a partial revert of r254296.
> * rtl.h (const_vec_p): Delete.
> (const_vec_duplicate_p): Don't test for vector CONSTs.
> (unwrap_const_vec_duplicate, const_vec_series_p): Likewise.
> * expmed.c (make_tree): Likewise.
>
> Revert:
> * common.md (E, F): Use CONSTANT_P instead of checking for
> CONST_VECTOR.
> * emit-rtl.c (gen_lowpart_common): Use const_vec_p instead of
> checking for CONST_VECTOR.
Never hurts to verify. OK.
jeff
