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2017-02-28 Jakub Jelinek <jakub@redhat.com>
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Backport from mainline
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2015-12-02 Jan Hubicka <hubicka@ucw.cz>
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PR ipa/68184
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* cgraphunit.c (cgraph_node::analyze): Set can_throw_external.
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* g++.dg/torture/pr68184.C: New testcase.
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--- gcc/cgraphunit.c.jj 2014-09-10 09:15:51.000000000 +0200
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+++ gcc/cgraphunit.c 2017-02-28 08:24:44.387385510 +0100
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@@ -626,8 +626,10 @@ cgraph_analyze_function (struct cgraph_n
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}
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else if (node->thunk.thunk_p)
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{
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- cgraph_create_edge (node, cgraph_get_node (node->thunk.alias),
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- NULL, 0, CGRAPH_FREQ_BASE);
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+ struct cgraph_node *t = cgraph_get_node (node->thunk.alias);
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+ cgraph_create_edge (node, t, NULL, 0,
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+ CGRAPH_FREQ_BASE)->can_throw_external
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+ = !TREE_NOTHROW (t->symbol.decl);
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}
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else if (node->dispatcher_function)
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{
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--- gcc/testsuite/g++.dg/torture/pr68184.C.jj 2017-02-28 08:26:09.205246069 +0100
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+++ gcc/testsuite/g++.dg/torture/pr68184.C 2015-12-03 16:39:34.589010321 +0100
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@@ -0,0 +1,31 @@
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+// { dg-do run }
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+namespace {
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+struct IFoo { virtual void foo() = 0; };
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+struct IBar { virtual void bar() = 0; };
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+
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+struct FooBar : private IBar, private IFoo
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+{
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+ void call_foo()
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+ {
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+ try
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+ {
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+ static_cast<IFoo*>(this)->foo();
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+ }
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+ catch( ... ) {}
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+ }
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+ void foo() { throw 1; }
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+ void bar() {}
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+};
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+
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+void test()
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+{
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+ FooBar foobar;
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+ foobar.call_foo();
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+}
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+}
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+int main()
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+{
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+ test();
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+ return 0;
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+}
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+
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