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d8bb3aff76
available_externally linkage, since they may not have been given a
strong definition in another translation unit. Without this patch, the
following test case fails to link with a GCC-compiled libstdc++:
#include <sstream>
int main() { std::basic_stringbuf<char> bs; }
Fixes the last problem with the Boost.IO library.
llvm-svn: 103208
45 lines
1001 B
C++
45 lines
1001 B
C++
// RUN: %clang_cc1 %s -triple=x86_64-apple-darwin10 -emit-llvm -o - | FileCheck %s
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template<typename T> struct A {
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virtual void f(T) { }
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inline void g() { }
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};
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// Explicit instantiations have external linkage.
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// CHECK: define weak_odr void @_ZN1AIiE1gEv(
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template void A<int>::g();
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// CHECK: define weak_odr void @_ZN1AIfE1fEf(
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// CHECK: define weak_odr void @_ZN1AIfE1gEv(
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// FIXME: This should also emit the vtable.
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template struct A<float>;
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// CHECK: define weak_odr void @_Z1fIiEvT_
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template <typename T> void f(T) { }
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template void f<int>(int);
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// CHECK: define weak_odr void @_Z1gIiEvT_
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template <typename T> inline void g(T) { }
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template void g<int>(int);
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template<typename T>
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struct X0 {
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virtual ~X0() { }
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};
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template<typename T>
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struct X1 : X0<T> {
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virtual void blarg();
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};
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template<typename T> void X1<T>::blarg() { }
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extern template struct X0<char>;
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extern template struct X1<char>;
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// CHECK: define linkonce_odr void @_ZN2X1IcED1Ev(
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void test_X1() {
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X1<char> i1c;
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}
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