diff options
Diffstat (limited to 'gcc/ipa-pure-const.c')
| -rw-r--r-- | gcc/ipa-pure-const.c | 17 |
1 files changed, 16 insertions, 1 deletions
diff --git a/gcc/ipa-pure-const.c b/gcc/ipa-pure-const.c index 892bf46d53c..3b3a419a3e3 100644 --- a/gcc/ipa-pure-const.c +++ b/gcc/ipa-pure-const.c @@ -1956,10 +1956,25 @@ pass_nothrow::execute (function *) } node->set_nothrow_flag (true); + + bool cfg_changed = false; + if (self_recursive_p (node)) + FOR_EACH_BB_FN (this_block, cfun) + if (gimple *g = last_stmt (this_block)) + if (is_gimple_call (g)) + { + tree callee_t = gimple_call_fndecl (g); + if (callee_t + && recursive_call_p (current_function_decl, callee_t) + && maybe_clean_eh_stmt (g) + && gimple_purge_dead_eh_edges (this_block)) + cfg_changed = true; + } + if (dump_file) fprintf (dump_file, "Function found to be nothrow: %s\n", current_function_name ()); - return 0; + return cfg_changed ? TODO_cleanup_cfg : 0; } } // anon namespace |