|  | // RUN: %clang_cc1 %s -fblocks -triple x86_64-apple-darwin -emit-llvm -o - | FileCheck %s | 
|  |  | 
|  | typedef void (^dispatch_block_t)(void); | 
|  |  | 
|  | void dispatch_once(dispatch_block_t); | 
|  |  | 
|  | class Zone { | 
|  | public: | 
|  | Zone(); | 
|  | ~Zone(); | 
|  | }; | 
|  |  | 
|  | Zone::Zone() { | 
|  | dispatch_once(^{}); | 
|  | dispatch_once(^{}); | 
|  | } | 
|  |  | 
|  | Zone::~Zone() { | 
|  | dispatch_once(^{}); | 
|  | dispatch_once(^{}); | 
|  | } | 
|  |  | 
|  | class X : public virtual Zone { | 
|  | X(); | 
|  | ~X(); | 
|  | }; | 
|  |  | 
|  | X::X() { | 
|  | dispatch_once(^{}); | 
|  | dispatch_once(^{}); | 
|  | }; | 
|  |  | 
|  | X::~X() { | 
|  | dispatch_once(^{}); | 
|  | dispatch_once(^{}); | 
|  | }; | 
|  |  | 
|  |  | 
|  | // CHECK-LABEL: define internal void @___ZN4ZoneC2Ev_block_invoke | 
|  | // CHECK-LABEL: define internal void @___ZN4ZoneC2Ev_block_invoke_ | 
|  | // CHECK-LABEL: define internal void @___ZN4ZoneD2Ev_block_invoke | 
|  | // CHECK-LABEL: define internal void @___ZN4ZoneD2Ev_block_invoke_ | 
|  | // CHECK-LABEL: define internal void @___ZN1XC2Ev_block_invoke | 
|  | // CHECK-LABEL: define internal void @___ZN1XC2Ev_block_invoke_ | 
|  | // CHECK-LABEL: define internal void @___ZN1XD2Ev_block_invoke | 
|  | // CHECK-LABEL: define internal void @___ZN1XD2Ev_block_invoke_ |