|  | // Test -fsanitize-memory-use-after-dtor | 
|  | // RUN: %clang_cc1 -fsanitize=memory -fsanitize-memory-use-after-dtor -disable-llvm-passes -std=c++11 -triple=x86_64-pc-linux -emit-llvm -o - %s | FileCheck %s | 
|  | // RUN: %clang_cc1 -O1 -fsanitize=memory -fsanitize-memory-use-after-dtor -disable-llvm-passes -std=c++11 -triple=x86_64-pc-linux -emit-llvm -o - %s | FileCheck %s | 
|  |  | 
|  | struct Simple { | 
|  | int x_; | 
|  | Simple() { | 
|  | x_ = 5; | 
|  | } | 
|  | ~Simple() { | 
|  | x_ += 1; | 
|  | } | 
|  | }; | 
|  |  | 
|  | Simple s; | 
|  | // Simple internal member is poisoned by compiler-generated dtor | 
|  | // CHECK: define {{.*}}SimpleD2Ev{{.*}} [[ATTRIBUTE:#[0-9]+]] | 
|  | // CHECK: {{^ *}}call void @__sanitizer_dtor_callback | 
|  | // CHECK-NOT: call void @__sanitizer_dtor_callback | 
|  | // CHECK: ret void | 
|  |  | 
|  | // Destructor does not emit any tail calls | 
|  | // CHECK: attributes [[ATTRIBUTE]] = {{.*}}"disable-tail-calls"="true" |