On Fri, Jan 12, 2018 at 2:33 PM, Richard Sandiford
wrote:
> This is needed to build libgfortran for SVE. The OpenMP code needs
> to create temporary vector variables, and the variables will therefore
> be variable-sized for SVE. Earlier patches made such variables work.
>
> Tested on aarch64-linux-gnu, x86_64-linux-gnu and powerpc64le-linux-gnu.
> Also tested by comparing the before-and-after assembly output for at
> least one target per CPU directory. OK to install?
Ok.
Richard.
> Thanks,
> Richard
>
>
> 2018-01-12 Richard Sandiford
>
> gcc/
> * gimplify.c (gimple_add_tmp_var_fn): Allow variables to have a
> poly_uint64 size, rather than requiring an unsigned HOST_WIDE_INT
> size.
> (gimple_add_tmp_var): Likewise.
>
> Index: gcc/gimplify.c
> ===
> --- gcc/gimplify.c 2018-01-10 08:43:40.053367209 +
> +++ gcc/gimplify.c 2018-01-12 12:49:36.756892670 +
> @@ -702,7 +702,7 @@ gimple_add_tmp_var_fn (struct function *
>/* Later processing assumes that the object size is constant, which might
> not be true at this point. Force the use of a constant upper bound in
> this case. */
> - if (!tree_fits_uhwi_p (DECL_SIZE_UNIT (tmp)))
> + if (!tree_fits_poly_uint64_p (DECL_SIZE_UNIT (tmp)))
> force_constant_size (tmp);
>
>DECL_CONTEXT (tmp) = fn->decl;
> @@ -721,7 +721,7 @@ gimple_add_tmp_var (tree tmp)
>/* Later processing assumes that the object size is constant, which might
> not be true at this point. Force the use of a constant upper bound in
> this case. */
> - if (!tree_fits_uhwi_p (DECL_SIZE_UNIT (tmp)))
> + if (!tree_fits_poly_uint64_p (DECL_SIZE_UNIT (tmp)))
> force_constant_size (tmp);
>
>DECL_CONTEXT (tmp) = current_function_decl;