1dbd474f2e
implicit methods on explicit template instantiation definitions. As a consequence, we should emit them at every use, even if we see a explicit template instantiation declaration. This is already the current behaviour, but it is good to test for that :-) llvm-svn: 99443
63 lines
1.6 KiB
C++
63 lines
1.6 KiB
C++
// RUN: %clang_cc1 %s -triple=x86_64-apple-darwin10 -emit-llvm -o - | FileCheck %s
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// CHECK-NOT: @_ZTVN5test118stdio_sync_filebufIwEE = constant
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// CHECK: @_ZTVN5test018stdio_sync_filebufIwEE = constant
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// CHECK: define linkonce_odr void @_ZN5test21CIiEC1Ev(
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// CHECK: define linkonce_odr void @_ZN5test21CIiE6foobarIdEEvT_(
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// CHECK: define available_externally void @_ZN5test21CIiE6zedbarEd(
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namespace test0 {
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struct basic_streambuf {
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virtual ~basic_streambuf();
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};
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template<typename _CharT >
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struct stdio_sync_filebuf : public basic_streambuf {
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virtual void xsgetn();
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};
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// This specialization should cause the vtable to be emitted, even with
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// the following extern template declaration.
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template<> void stdio_sync_filebuf<wchar_t>::xsgetn() {
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}
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extern template class stdio_sync_filebuf<wchar_t>;
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}
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namespace test1 {
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struct basic_streambuf {
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virtual ~basic_streambuf();
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};
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template<typename _CharT >
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struct stdio_sync_filebuf : public basic_streambuf {
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virtual void xsgetn();
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};
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// Just a declaration should not force the vtable to be emitted.
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template<> void stdio_sync_filebuf<wchar_t>::xsgetn();
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}
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namespace test2 {
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template<typename T1>
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class C {
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virtual ~C();
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void zedbar(double) {
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}
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template<typename T2>
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void foobar(T2 foo) {
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}
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};
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extern template class C<int>;
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void g() {
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// The extern template declaration should not prevent us from producing
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// the implicit constructor (test at the top).
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C<int> a;
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// or foobar(test at the top).
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a.foobar(0.0);
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// But it should prevent zebbar
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// (test at the top).
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a.zedbar(0.0);
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}
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}
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