On Fri, Oct 28, 2016 at 07:27:56PM +0200, Eric Botcazou wrote:
> Thanks for the hint. The hook is the way to go I think because BITS_PER_WORD
> is not a constant, so the default would not be properly initialized. Here's
> a
> tentative patch, I'll add a couple of SPARC-specific testcases if accepted.
>
> Tested on SPARC/Solaris, OK for the mainline?
>
>
> * doc/tm.texi.in (Target Macros) Add TARGET_MIN_ARITHMETIC_PRECISION.
> * doc/tm.texi: Regenerate.
> * internal-fn.c (expand_arith_overflow): Rewrite handling of target
> dependent support by means of TARGET_MIN_ARITHMETIC_PRECISION.
> * target.def (min_arithmetic_precision): New hook.
> * targhooks.c (default_min_arithmetic_precision): New function.
> * targhooks.h (default_min_arithmetic_precision): Declare.
> * config/sparc/sparc.c (TARGET_MIN_ARITHMETIC_PRECISION): Define.
> (sparc_min_arithmetic_precision): New function.
Ok, thanks.
Jakub
