On Fri, Oct 20, 2017 at 4:09 AM, Sandra Loosemore
<[email protected]> wrote:
> This patch adds a function to indicate whether the split1 pass has run
> yet. This is used in part 3 of the patch set to decide whether 32-bit
> symbolic constant expressions are permitted, e.g. in
> TARGET_LEGITIMATE_ADDRESS_P and the movsi expander.
>
> Since there's currently no usable hook for querying the pass manager
> where it is relative to another pass, I implemented this using a
> target-specific pass that runs directly after split1 and does nothing
> but set a flag.
"Nice" hack ;) The only currently existing way would be to add a property
to the IL state like
const pass_data pass_data_split_all_insns =
{
RTL_PASS, /* type */
"split1", /* name */
OPTGROUP_NONE, /* optinfo_flags */
TV_NONE, /* tv_id */
0, /* properties_required */
PROP_rtl_split_insns, /* properties_provided */
0, /* properties_destroyed */
and test that via cfun->curr_properties & PROP_rtl_split_insns
Having run split might be a important enough change to warrant this.
Likewise reload_completed and reload_in_progress could be transitioned
to IL properties.
Richard.
> -Sandra
>
