866af2d6d1
Summary: Dtor sanitization handled amidst other dtor cleanups, between cleaning bases and fields. Sanitizer call pushed onto stack of cleanup operations. Reviewers: eugenis, kcc Differential Revision: http://reviews.llvm.org/D12022 Refactoring dtor sanitizing emission order. - Support multiple inheritance by poisoning after member destructors are invoked, and before base class destructors are invoked. - Poison for virtual destructor and virtual bases. - Repress dtor aliasing when sanitizing in dtor. - CFE test for dtor aliasing, and repression of aliasing in dtor code generation. - Poison members on field-by-field basis, with collective poisoning of trivial members when possible. - Check msan flags and existence of fields, before dtor sanitizing, and when determining if aliasing is allowed. - Testing sanitizing bit fields. llvm-svn: 246815
31 lines
817 B
C++
31 lines
817 B
C++
// Test -fsanitize-memory-use-after-dtor
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// RUN: %clang_cc1 -fsanitize=memory -O1 -fsanitize-memory-use-after-dtor -std=c++11 -triple=x86_64-pc-linux -emit-llvm -o - %s | FileCheck %s
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// RUN: %clang_cc1 -fsanitize=memory -O2 -fsanitize-memory-use-after-dtor -std=c++11 -triple=x86_64-pc-linux -emit-llvm -o - %s | FileCheck %s
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template <class T>
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class Vector {
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public:
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int size;
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~Vector() {}
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};
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// Virtual function table for the derived class only contains
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// its own destructors, with no aliasing to base class dtors.
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struct Base {
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Vector<int> v;
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int x;
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Base() { x = 5; }
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virtual ~Base() {}
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};
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struct Derived : public Base {
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int z;
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Derived() { z = 10; }
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~Derived() {}
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};
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Derived d;
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// Definition of virtual function table
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// CHECK: @_ZTV7Derived = {{.*}}@_ZN7DerivedD1Ev{{.*}}@_ZN7DerivedD0Ev
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