On Sat, 25 Aug 2012, Uros Bizjak wrote:
> On Sat, Aug 25, 2012 at 7:22 PM, Hans-Peter Nilsson <h...@bitrange.com> wrote:
> > Maybe mention that the default is to allow all combinations for
> > which a pattern match? And that the reason to disallow them can
> > be that they're known to result in suboptimal code? Or other
> > reasons.
>
> Something like this perhaps:
>
> /* Returns true if the combined insn should be rejected
> for some reason. */
> DEFHOOK
> (reject_combined_insn,
> "Take an instruction in @var{insn} and return @code{true} if the instruction\
> should be rejected as a combination of two or more instructions. The\
> default is to accept all instructions.",
> bool, (rtx insn),
> hook_bool_rtx_false)
Better.
brgds, H-P
