On 07/13/2017 02:48 AM, Richard Sandiford wrote:
> This patch adds is_a checks to various places that
> were optimising subregs or extractions in ways that only made sense
> for scalar integers. Often the subreg transformations were looking
> for extends, truncates or shifts and trying to remove
This patch adds is_a checks to various places that
were optimising subregs or extractions in ways that only made sense
for scalar integers. Often the subreg transformations were looking
for extends, truncates or shifts and trying to remove the subreg, which
wouldn't be correct if the SUBREG_REG w