Re: [20/nn] Make tree-ssa-dse.c:normalize_ref return a bool

[Jeff Law]

On 10/23/2017 05:29 AM, Richard Sandiford wrote:
> This patch moves the check for an overlapping byte to normalize_ref
> from its callers, so that it's easier to convert to poly_ints later.
> It's not really worth it on its own.
> 
> 
> 2017-10-23  Richard Sandiford  <richard.sandif...@linaro.org>
> 
> gcc/
>       * tree-ssa-dse.c (normalize_ref): Check whether the ranges overlap
>       and return false if not.
>       (clear_bytes_written_by, live_bytes_read): Update accordingly.
OK.
jeff