// Check that initialization of the only one memcpy-able struct member will not // be performed twice after successful non-trivial initializtion of the second // member. // // RUN: %clang_cc1 -triple x86_64-unknown-unknown -fexceptions -fcxx-exceptions -O0 -fno-elide-constructors -emit-llvm %s -o - | FileCheck %s int globId = 0; struct ImplicitCopy { int id; ImplicitCopy() { id = 10; } ~ImplicitCopy() { id = 20; } }; struct ExplicitCopy { int id; ExplicitCopy() { id = 15; } ExplicitCopy(const ExplicitCopy &x) { id = 25; } ~ExplicitCopy() { id = 35; } }; struct Container { ImplicitCopy o1; // memcpy-able member. ExplicitCopy o2; // non-trivial initialization. Container() { globId = 1000; } ~Container() { globId = 2000; } }; int main() { try { Container c1; // CHECK-DAG: call void @llvm.memcpy // CHECK-DAG: declare void @llvm.memcpy // CHECK-NOT: @llvm.memcpy Container c2(c1); return 2; } catch (...) { return 1; } return 0; } |