bool
gsi_replace (gimple_stmt_iterator *gsi, gimple *stmt, bool update_eh_info)
{
gimple *orig_stmt = gsi_stmt (*gsi);
bool require_eh_edge_purge = false;
if (stmt == orig_stmt)
return false;
gcc_assert (!gimple_has_lhs (orig_stmt) || !gimple_has_lhs (stmt)
|| gimple_get_lhs (orig_stmt) == gimple_get_lhs (stmt));
gimple_set_location (stmt, gimple_location (orig_stmt));
gimple_set_bb (stmt, gsi_bb (*gsi));
/* Preserve EH region information from the original statement, if
requested by the caller. */
if (update_eh_info)
require_eh_edge_purge = maybe_clean_or_replace_eh_stmt (orig_stmt, stmt);
gimple_duplicate_stmt_histograms (cfun, stmt, cfun, orig_stmt);
/* Free all the data flow information for ORIG_STMT. */
gimple_set_bb (orig_stmt, NULL);
gimple_remove_stmt_histograms (cfun, orig_stmt);
delink_stmt_imm_use (orig_stmt);
gsi_set_stmt (gsi, stmt);
gimple_set_modified (stmt, true);
update_modified_stmt (stmt);
return require_eh_edge_purge;
}
void
gsi_insert_after (gimple_stmt_iterator *i, gimple *stmt,
enum gsi_iterator_update m)
{
update_modified_stmt (stmt);
gsi_insert_after_without_update (i, stmt, m);
}
void
gsi_insert_before (gimple_stmt_iterator *i, gimple stmt,
enum gsi_iterator_update m)
{
update_modified_stmt (stmt);
gsi_insert_before_without_update (i, stmt, m);
}