[llvm-commits] [llvm] r90623 - /llvm/trunk/test/FrontendC++/weak-external.cpp

[Bill Wendling]

Author: void
Date: Fri Dec  4 17:29:57 2009
New Revision: 90623

URL: http://llvm.org/viewvc/llvm-project?rev=90623&view=rev
Log:
Add testcase for PR4262.

Added:
    llvm/trunk/test/FrontendC++/weak-external.cpp

Added: llvm/trunk/test/FrontendC++/weak-external.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/FrontendC%2B%2B/weak-external.cpp?rev=90623&view=auto

==============================================================================
--- llvm/trunk/test/FrontendC++/weak-external.cpp (added)
+++ llvm/trunk/test/FrontendC++/weak-external.cpp Fri Dec  4 17:29:57 2009
@@ -0,0 +1,17 @@
+// RUN: %llvmgxx %s -S -emit-llvm -O2 -o - | not grep {_ZNSs12_S_constructIPKcEEPcT_S3_RKSaIcESt20forward_iterator_tag}
+// PR4262
+
+// The "basic_string" extern template instantiation declaration is supposed to
+// suppress the implicit instantiation of non-inline member functions. Make sure
+// that we suppress the implicit instantiation of non-inline member functions
+// defined out-of-line. That we aren't instantiating the basic_string
+// constructor when we shouldn't be. Such an instantiation forces the implicit
+// instantiation of _S_construct<const char*>. Since _S_construct is a member
+// template, it's instantiation is *not* suppressed (despite being in
+// basic_string<char>), so we would emit it as a weak definition.
+
+#include <stdexcept>
+
+void dummysymbol() {
+  throw(std::runtime_error("string"));
+}