bb4df94faa
Summary: In addition to checking compiler flags, the front-end also examines the attributes of the destructor definition to ensure that the SanitizeMemory attribute is attached. Reviewers: eugenis, kcc Subscribers: cfe-commits Differential Revision: http://reviews.llvm.org/D11727 refactored test into new file, revised how function attribute examined modified test to examine default dtor with and without attribute removed attribute check llvm-svn: 243912
52 lines
1.6 KiB
C++
52 lines
1.6 KiB
C++
// Test -fsanitize-memory-use-after-dtor
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// RUN: %clang_cc1 -fsanitize=memory -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 -DATTRIBUTE -fsanitize=memory -fsanitize-memory-use-after-dtor -std=c++11 -triple=x86_64-pc-linux -emit-llvm -o - %s | FileCheck %s --check-prefix=CHECK-ATTR
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template <class T> class Vector {
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public:
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~Vector() {}
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};
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struct No_San {
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Vector<int> v;
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No_San() { }
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#ifdef ATTRIBUTE
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__attribute__((no_sanitize_memory)) ~No_San() = default;
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#else
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~No_San() = default;
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#endif
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};
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int main() {
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No_San *ns = new No_San();
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ns->~No_San();
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return 0;
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}
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// Repressing the sanitization attribute results in no msan
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// instrumentation of the destructor
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// CHECK: define {{.*}}No_SanD1Ev{{.*}} [[ATTRIBUTE:#[0-9]+]]
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// CHECK: call void {{.*}}No_SanD2Ev
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// CHECK: call void @__sanitizer_dtor_callback
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// CHECK: ret void
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// CHECK-ATTR: define {{.*}}No_SanD1Ev{{.*}} [[ATTRIBUTE:#[0-9]+]]
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// CHECK-ATTR: call void {{.*}}No_SanD2Ev
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// CHECK-ATTR-NOT: call void @__sanitizer_dtor_callback
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// CHECK-ATTR: ret void
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// CHECK: define {{.*}}No_SanD2Ev{{.*}} [[ATTRIBUTE:#[0-9]+]]
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// CHECK: call void {{.*}}Vector
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// CHECK: call void @__sanitizer_dtor_callback
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// CHECK: ret void
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// CHECK-ATTR: define {{.*}}No_SanD2Ev{{.*}} [[ATTRIBUTE:#[0-9]+]]
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// CHECK-ATTR: call void {{.*}}Vector
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// CHECK-ATTR-NOT: call void @__sanitizer_dtor_callback
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// CHECK-ATTR: ret void
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// When attribute is repressed, the destructor does not emit any tail calls
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// CHECK: attributes [[ATTRIBUTE]] = {{.*}} sanitize_memory
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// CHECK-ATTR-NOT: attributes [[ATTRIBUTE]] = {{.*}} sanitize_memory
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