diff options
Diffstat (limited to 'gcc/ipa.c')
| -rw-r--r-- | gcc/ipa.c | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/gcc/ipa.c b/gcc/ipa.c index 8f1122b01f6..9228f70edb3 100644 --- a/gcc/ipa.c +++ b/gcc/ipa.c @@ -877,7 +877,47 @@ function_and_variable_visibility (bool whole_program) segfault though. */ dissolve_same_comdat_group_list (node); } + + if (node->thunk.thunk_p + && TREE_PUBLIC (node->decl)) + { + struct cgraph_node *decl_node = node; + + while (decl_node->thunk.thunk_p) + decl_node = decl_node->callees->callee; + + /* Thunks have the same visibility as function they are attached to. + For some reason C++ frontend don't seem to care. I.e. in + g++.dg/torture/pr41257-2.C the thunk is not comdat while function + it is attached to is. + + We also need to arrange the thunk into the same comdat group as + the function it reffers to. */ + if (DECL_COMDAT (decl_node->decl)) + { + DECL_COMDAT (node->decl) = 1; + DECL_COMDAT_GROUP (node->decl) = DECL_COMDAT_GROUP (decl_node->decl); + if (!node->same_comdat_group) + { + node->same_comdat_group = decl_node; + if (!decl_node->same_comdat_group) + decl_node->same_comdat_group = node; + else + { + struct cgraph_node *n; + for (n = decl_node->same_comdat_group; + n->same_comdat_group != decl_node; + n = n->same_comdat_group) + ; + n->same_comdat_group = node; + } + } + } + if (DECL_EXTERNAL (decl_node->decl)) + DECL_EXTERNAL (node->decl) = 1; + } node->local.local = cgraph_local_node_p (node); + } for (vnode = varpool_nodes; vnode; vnode = vnode->next) { |
