llvm-project/clang/test/CodeGenCXX/copy-elision.cpp
Juneyoung Lee f193bcc701 Revert D105169 due to the two-stage failure in ASAN
This reverts the following commits:
37ca7a795b277c20c02a218bf44052278c03344b
9aa6c72b92b6c89cc6d23b693257df9af7de2d15
705387c5074bcca36d626882462ebbc2bcc3bed4
8ca4b3ef19fe82d7ad6a6e1515317dcc01b41515
80dba72a669b5416e97a42fd2c2a7bc5a6d3f44a
2021-10-18 23:52:46 +09:00

35 lines
833 B
C++

// RUN: %clang_cc1 -std=c++14 -triple x86_64-unknown-unknown-gnu -emit-llvm -O1 -fexperimental-new-pass-manager -o - %s | FileCheck %s
template <class T> T test() {
return T();
}
struct A {
A();
A(A &);
A(int);
operator int();
};
// FIXME: There should be copy elision here.
// CHECK-LABEL: define{{.*}} void @_Z4testI1AET_v
// CHECK: call void @_ZN1AC1Ev
// CHECK-NEXT: call i32 @_ZN1AcviEv
// CHECK-NEXT: call void @_ZN1AC1Ei
// CHECK-NEXT: call void @llvm.lifetime.end
template A test<A>();
struct BSub {};
struct B : BSub {
B();
B(B &);
B(const BSub &);
};
// FIXME: There should be copy elision here.
// CHECK-LABEL: define{{.*}} void @_Z4testI1BET_v
// CHECK: call void @_ZN1BC1Ev
// CHECK: call void @_ZN1BC1ERK4BSub
// CHECK-NEXT: call void @llvm.lifetime.end
template B test<B>();