https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61393
--- Comment #1 from Martin Jambor <jamborm at gcc dot gnu.org> --- Alexander, as a temporary workaround, you can use -fno-ipa-cp. The problem (also present in the trunk) seems to be that the tm_clone flag of cgrapn_node is not copied over to clones (of tm_clones). Thus, the following patch "fixes" the testcase: diff --git a/gcc/cgraphclones.c b/gcc/cgraphclones.c index 4387b99..056d82b 100644 --- a/gcc/cgraphclones.c +++ b/gcc/cgraphclones.c @@ -562,6 +562,7 @@ cgraph_create_virtual_clone (struct cgraph_node *old_node, set_new_clone_decl_and_node_flags (new_node); new_node->clone.tree_map = tree_map; new_node->clone.args_to_skip = args_to_skip; + new_node->tm_clone = old_node->tm_clone; /* Clones of global symbols or symbols with unique names are unique. */ if ((TREE_PUBLIC (old_decl) However, I do not really know what the semantics of that flag mean so at least for now I am not going to propose this (I am also not quite sure this is the best place for the copy). What properties of a function should be maintained in order to keep it flagged as a tm clone?
