Bootstrapped and tested on x86_64-unknown-linux-gnu, applied.
Richard.
2016-10-12 Richard Biener <rguent...@suse.de>
PR debug/77947
* cgraphunit.c (analyze_functions): Preserve cgraph nodes
function context.
* g++.dg/torture/pr77947.C: New testcase.
Index: gcc/cgraphunit.c
===================================================================
--- gcc/cgraphunit.c (revision 241033)
+++ gcc/cgraphunit.c (working copy)
@@ -1117,15 +1117,22 @@ analyze_functions (bool first_time)
}
/* If decl is a clone of an abstract function,
- mark that abstract function so that we don't release its body.
- The DECL_INITIAL() of that abstract function declaration
- will be later needed to output debug info. */
+ mark that abstract function so that we don't release its body.
+ The DECL_INITIAL() of that abstract function declaration
+ will be later needed to output debug info. */
if (DECL_ABSTRACT_ORIGIN (decl))
{
cgraph_node *origin_node
= cgraph_node::get_create (DECL_ABSTRACT_ORIGIN (decl));
origin_node->used_as_abstract_origin = true;
}
+ /* Preserve a functions function context node. It will
+ later be needed to output debug info. */
+ if (tree fn = decl_function_context (decl))
+ {
+ cgraph_node *origin_node = cgraph_node::get_create (fn);
+ enqueue_node (origin_node);
+ }
}
else
{
Index: gcc/testsuite/g++.dg/torture/pr77947.C
===================================================================
--- gcc/testsuite/g++.dg/torture/pr77947.C (revision 0)
+++ gcc/testsuite/g++.dg/torture/pr77947.C (revision 0)
@@ -0,0 +1,29 @@
+// { dg-do compile }
+// { dg-additional-options "-g" }
+
+class A
+{
+public:
+ virtual bool m_fn1 () const = 0;
+};
+class B
+{
+ const A *m_fn2 () const;
+};
+inline const A *
+B::m_fn2 () const
+{
+ class C : A
+ {
+ bool
+ m_fn1 () const
+ {
+ }
+ C () {}
+ };
+}
+void
+fn1 (A &p1)
+{
+ p1.m_fn1 ();
+}
