1 // RUN: %clang_cc1 -triple armv7-apple-ios -x c++ -emit-llvm -o - %s | FileCheck %s 2 3 // According to the Itanium ABI (3.1.1), types with non-trivial copy 4 // constructors passed by value should be passed indirectly, with the caller 5 // creating a temporary. 6 7 struct Empty; 8 9 struct Empty { 10 Empty(const Empty &e); 11 bool check(); 12 }; 13 14 bool foo(Empty e) { 15 // CHECK: @_Z3foo5Empty(%struct.Empty* %e) 16 // CHECK: call {{.*}} @_ZN5Empty5checkEv(%struct.Empty* %e) 17 return e.check(); 18 } 19 20 void caller(Empty &e) { 21 // CHECK: @_Z6callerR5Empty(%struct.Empty* %e) 22 // CHECK: call {{.*}} @_ZN5EmptyC1ERKS_(%struct.Empty* [[NEWTMP:%.*]], %struct.Empty* 23 // CHECK: call {{.*}} @_Z3foo5Empty(%struct.Empty* [[NEWTMP]]) 24 foo(e); 25 } 26
