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adding tests for various dtor decl types
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Reviewers: eugenis, kcc

Subscribers: cfe-commits

Differential Revision: http://reviews.llvm.org/D11189

llvm-svn: 242351
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Naomi Musgrave committed Jul 15, 2015
1 parent 6585b76 commit d3ec7c3
Showing 1 changed file with 59 additions and 4 deletions.
63 changes: 59 additions & 4 deletions clang/test/CodeGenCXX/sanitize-dtor-callback.cpp
@@ -1,6 +1,9 @@
// Test -fsanitize-memory-use-after-dtor
// RUN: %clang_cc1 -fsanitize=memory -fsanitize-memory-use-after-dtor -triple=x86_64-pc-linux -emit-llvm -o - %s | FileCheck %s
// RUN: %clang_cc1 -fsanitize=memory -triple=x86_64-pc-linux -emit-llvm -o - %s | FileCheck %s -check-prefix=NO_DTOR_CHECK
// RUN: %clang_cc1 -fsanitize=memory -triple=x86_64-pc-linux -emit-llvm -o - %s | FileCheck %s -check-prefix=NO-DTOR-CHECK

// RUN: %clang_cc1 -std=c++11 -fsanitize=memory -fsanitize-memory-use-after-dtor -triple=x86_64-pc-linux -emit-llvm -o - %s | FileCheck %s -check-prefix=STD11
// RUN: %clang_cc1 -std=c++11 -fsanitize=memory -triple=x86_64-pc-linux -emit-llvm -o - %s | FileCheck %s -check-prefix=NO-DTOR-STD11-CHECK

struct Simple {
~Simple() {}
Expand All @@ -12,6 +15,58 @@ Simple s;
// CHECK: ret void

// Compiling without the flag does not generate member-poisoning dtor
// NO_DTOR_CHECK-LABEL: @_ZN6SimpleD2Ev
// NO_DTOR_CHECK-NOT: call void @sanitizer_dtor_callback
// NO_DTOR_CHECK: ret void
// NO-DTOR-CHECK-LABEL: @_ZN6SimpleD2Ev
// NO-DTOR-CHECK-NOT: call void @__sanitizer_dtor_callback
// NO-DTOR-CHECK: ret void


struct Inlined {
inline ~Inlined() {}
};
Inlined in;
// Dtor that is inlined where invoked poisons object
// CHECK-LABEL: @_ZN7InlinedD2Ev
// CHECK: call void @__sanitizer_dtor_callback
// CHECK: ret void

// Compiling without the flag does not generate member-poisoning dtor
// NO-DTOR-CHECK-LABEL: @_ZN7InlinedD2Ev
// NO-DTOR-CHECK-NOT: call void @__sanitizer_dtor_callback
// NO-DTOR-CHECK: ret void


struct Defaulted_Trivial {
~Defaulted_Trivial() = default;
};
int main() {
Defaulted_Trivial def_trivial;
}
// The compiler is explicitly signalled to handle object cleanup.
// No complex member attributes ensures that the compiler destroys
// the memory inline. However, it must still poison this memory.
// STD11-CHECK-LABEL: alloca %struct.Defaulted_Trivial
// STD11: call void @__sanitizer_dtor_callback
// STD11: ret void

// Compiling without the flag does not generate member-poisoning dtor
// NO-DTOR-STD11-CHECK-LABEL: alloca %struct.Defaulted_Trivial
// NO-DTOR-STD11-CHECK-NOT: call void @__sanitizer_dtor_callback
// NO-DTOR-STD11-CHECK: ret void


struct Defaulted_Non_Trivial {
Simple s;
~Defaulted_Non_Trivial() = default;
};
Defaulted_Non_Trivial def_non_trivial;
// Explicitly compiler-generated dtor poisons object.
// By including a Simple member in the struct, the compiler is
// forced to generate a non-trivial destructor..
// STD11-CHECK-LABEL: @_ZN21Defaulted_Non_TrivialD2Ev
// STD11: call void @__sanitizer_dtor_callback
// STD11: ret void

// Compiling without the flag does not generate member-poisoning dtor
// NO-DTOR-STD11-CHECK-LABEL: @_ZN21Defaulted_Non_TrivialD2Ev
// NO-DTOR-STD11-CHECK-NOT: call void @__sanitizer_dtor_callback
// NO-DTOR-STD11-CHECK: ret void

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