On Mon, 27 Jun 2016, Jakub Jelinek wrote:
> Hi!
>
> On targets which don't support sub-word operations trying OPTAB_DIRECT
> AND on e.g. QImode or HImode leads to NULL being returned, so we ICE on
> builtin-arith-overflow-p-19.c e.g. on arm, aarch64 or sparc*.
>
> Fixed thusly, bootstrapped/regtested on x86_64-linux and i686-linux, tested
> with cross-compiler on the testcase, ok for trunk?
Ok.
Richard.
> 2016-06-27 Jakub Jelinek <ja...@redhat.com>
>
> PR rtl-optimization/71673
> * internal-fn.c (expand_arith_overflow_result_store): Use
> OPTAB_LIB_WIDEN instead of OPTAB_DIRECT as last argument to
> expand_simple_binop.
>
> --- gcc/internal-fn.c.jj 2016-06-24 13:01:58.000000000 +0200
> +++ gcc/internal-fn.c 2016-06-27 13:38:25.753237581 +0200
> @@ -454,7 +454,7 @@ expand_arith_overflow_result_store (tree
> = immed_wide_int_const (wi::shifted_mask (0, prec, false, tgtprec),
> tgtmode);
> lres = expand_simple_binop (tgtmode, AND, res, mask, NULL_RTX,
> - true, OPTAB_DIRECT);
> + true, OPTAB_LIB_WIDEN);
> }
> else
> {
>
> Jakub
>
>
--
Richard Biener <rguent...@suse.de>
SUSE LINUX GmbH, GF: Felix Imendoerffer, Jane Smithard, Graham Norton, HRB
21284 (AG Nuernberg)
