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c195c25b22
Summary: This fixes a miscompile where we'd emit a VTT for a class that ends up referencing an inline virtual member function that we can't actually emit a body for (because we never instantiated it in the current TU), which in a corner case of a corner case can lead to link errors. Reviewers: rjmccall Subscribers: cfe-commits Differential Revision: https://reviews.llvm.org/D54768 llvm-svn: 347692
14 lines
494 B
C++
14 lines
494 B
C++
// RUN: %clang_cc1 -triple x86_64-linux-gnu %s -O2 -disable-llvm-passes -emit-llvm -o - | FileCheck %s
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struct A { virtual ~A(); };
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template<typename T> struct B : virtual A {
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~B() override {}
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};
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struct C : B<int>, B<float> { C(); ~C() override; };
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struct D : C { ~D() override; };
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// We must not create a reference to B<int>::~B() here, because we're not going to emit it.
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// CHECK-NOT: @_ZN1BIiED1Ev
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// CHECK-NOT: @_ZTC1D0_1BIiE =
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// CHECK-NOT: @_ZTT1D = available_externally
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D *p = new D;
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