obtained gcc-4.6.4.tar.bz2 from upstream website;upstream

verified gcc-4.6.4.tar.bz2.sig;
imported gcc-4.6.4 source tree from verified upstream tarball.

downloading a git-generated archive based on the 'upstream' tag
should provide you with a source tree that is binary identical
to the one extracted from the above tarball.

if you have obtained the source via the command 'git clone',
however, do note that line-endings of files in your working
directory might differ from line-endings of the respective
files in the upstream repository.

1 files changed, 30 insertions, 0 deletions

diff --git a/gcc/testsuite/g++.dg/init/elide2.C b/gcc/testsuite/g++.dg/init/elide2.C
new file mode 100644
index 000000000..e6d3300b5
--- /dev/null
+++ b/gcc/testsuite/g++.dg/init/elide2.C
@@ -0,0 +1,30 @@
+// PR c++/8674
+
+// Bug: Since B().a is an rvalue, we tried to treat it like a TARGET_EXPR
+// and elide the copy.  But that produces a bitwise copy, which causes us
+// to abort in cp_expr_size.
+
+// Test that we actually run the A copy constructor when calling f().
+
+// { dg-do run }
+
+int c;
+
+struct A
+{
+  A () { ++c; }
+  A (const A&) { ++c; }
+};
+
+struct B
+{
+  A a;
+};
+
+void f (A) { }
+
+int main ()
+{
+  f (B().a);
+  return c < 2;
+}