On 05/13/2011 10:52 AM, William J. Schmidt wrote:
> This patch addresses PR46728, which notes that pow and powi need to be
> lowered in tree phases to restore lost FMA opportunities and expose
> vectorization opportunities.
>
> +struct gimple_opt_pass pass_lower_pow =
> +{
> + {
> + GIMPLE_PASS,
> + "lower_pow", /* name */
> + NULL, /* gate */
Please make this controlled by an option; this pass doesn't need to be run all
the time.
IMHO, the pass shouldn't run at anything less than -O3, but that's for other
people to decide.
-Nathan
