cfe41db403
templates when only the declaration is in scope. This requires deferring the instantiation to be lazy, and ensuring the definition is required for that translation unit. We re-use the existing pending instantiation queue, previously only used to track implicit instantiations which were required to be lazy. Fixes PR7979. A subsequent change will rename *PendingImplicitInstantiations to *PendingInstatiations for clarity given its broader role. llvm-svn: 112037
46 lines
1.2 KiB
C++
46 lines
1.2 KiB
C++
// RUN: %clang_cc1 -emit-llvm -triple i686-pc-linux-gnu -o - %s | FileCheck %s
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// This check logically is attached to 'template int S<int>::i;' below.
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// CHECK: @_ZN1SIiE1iE = weak global i32
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template<typename T, typename U, typename Result>
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struct plus {
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Result operator()(const T& t, const U& u) const;
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};
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template<typename T, typename U, typename Result>
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Result plus<T, U, Result>::operator()(const T& t, const U& u) const {
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return t + u;
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}
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// CHECK: define weak_odr i32 @_ZNK4plusIillEclERKiRKl
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template struct plus<int, long, long>;
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// Check that we emit definitions from explicit instantiations even when they
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// occur prior to the definition itself.
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template <typename T> struct S {
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void f();
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static void g();
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static int i;
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struct S2 {
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void h();
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};
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};
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// CHECK: define weak_odr void @_ZN1SIiE1fEv
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template void S<int>::f();
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// CHECK: define weak_odr void @_ZN1SIiE1gEv
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template void S<int>::g();
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// See the check line at the top of the file.
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template int S<int>::i;
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// CHECK: define weak_odr void @_ZN1SIiE2S21hEv
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template void S<int>::S2::h();
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template <typename T> void S<T>::f() {}
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template <typename T> void S<T>::g() {}
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template <typename T> int S<T>::i;
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template <typename T> void S<T>::S2::h() {}
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