29 lines
1020 B
C++
29 lines
1020 B
C++
// RUN: %clang_cc1 -emit-llvm -o - -fsanitize=thread %s | FileCheck %s
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// RUN: %clang_cc1 -emit-llvm -o - -O1 %s | FileCheck %s
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// RUN: %clang_cc1 -emit-llvm -o - -O1 -relaxed-aliasing -fsanitize=thread %s | FileCheck %s
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//
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// RUN: %clang_cc1 -emit-llvm -o - %s | FileCheck %s --check-prefix=NOTBAA
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// RUN: %clang_cc1 -emit-llvm -o - -O2 -relaxed-aliasing %s | FileCheck %s --check-prefix=NOTBAA
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//
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// Check that we generate TBAA for vtable pointer loads and stores.
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// When -fthread-sanitizer is used TBAA should be generated at all opt levels
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// even if -relaxed-aliasing is present.
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struct A {
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virtual int foo() const ;
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virtual ~A();
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};
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void CreateA() {
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new A;
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}
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void CallFoo(A *a) {
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a->foo();
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}
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// CHECK: %{{.*}} = load {{.*}} !tbaa ![[NUM:[0-9]+]]
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// CHECK: store {{.*}} !tbaa ![[NUM]]
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// CHECK: [[NUM]] = metadata !{metadata [[TYPE:!.*]], metadata [[TYPE]], i64 0}
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// CHECK: [[TYPE]] = metadata !{metadata !"vtable pointer", metadata !{{.*}}
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// NOTBAA-NOT: = metadata !{metadata !"Simple C/C++ TBAA"}
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