From c5c90089e6f24e5c3d31a1e70edbe1bbe14a2a61 Mon Sep 17 00:00:00 2001 From: Jason Merrill Date: Tue, 24 Jan 2012 08:37:38 -0500 Subject: [PATCH] re PR c++/51812 (Virtual public inheritance and thunks leads to "undefined reference" in header files.) PR c++/51812 * cgraphunit.c (cgraph_decide_is_function_needed): Don't always output static aliases. From-SVN: r183475 --- gcc/ChangeLog | 6 ++++++ gcc/cgraphunit.c | 1 + gcc/testsuite/ChangeLog | 5 +++++ gcc/testsuite/g++.dg/inherit/covariant20.C | 10 ++++++++++ 4 files changed, 22 insertions(+) create mode 100644 gcc/testsuite/g++.dg/inherit/covariant20.C diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 05ec2e139b0..ebbb8d04dff 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,9 @@ +2012-01-24 Jason Merrill + + PR c++/51812 + * cgraphunit.c (cgraph_decide_is_function_needed): Don't always + output static aliases. + 2012-01-24 Jakub Jelinek PR driver/47249 diff --git a/gcc/cgraphunit.c b/gcc/cgraphunit.c index 6ea40ce4e52..8f96d3859bf 100644 --- a/gcc/cgraphunit.c +++ b/gcc/cgraphunit.c @@ -195,6 +195,7 @@ cgraph_decide_is_function_needed (struct cgraph_node *node, tree decl) to change the behavior here. */ if (((TREE_PUBLIC (decl) || (!optimize + && !node->same_body_alias && !DECL_DISREGARD_INLINE_LIMITS (decl) && !DECL_DECLARED_INLINE_P (decl) && !(DECL_CONTEXT (decl) diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog index 1db5388c319..b97bf39b353 100644 --- a/gcc/testsuite/ChangeLog +++ b/gcc/testsuite/ChangeLog @@ -1,3 +1,8 @@ +2012-01-24 Jason Merrill + + PR c++/51812 + * g++.dg/inherit/covariant20.C: New. + 2012-01-24 Paolo Carlini PR c++/51223 diff --git a/gcc/testsuite/g++.dg/inherit/covariant20.C b/gcc/testsuite/g++.dg/inherit/covariant20.C new file mode 100644 index 00000000000..cf7e196fe1c --- /dev/null +++ b/gcc/testsuite/g++.dg/inherit/covariant20.C @@ -0,0 +1,10 @@ +// PR c++/51812 +// { dg-do link } + +class Object { + virtual Object* clone() const; +}; +class DNA: virtual public Object { + virtual DNA* clone() const {return new DNA(*this);} +}; +int main() { } -- 2.30.2