36 lines
1.3 KiB
C++
36 lines
1.3 KiB
C++
|
// RUN: %clang_cc1 -std=c++98 -triple i386-unknown-unknown -fno-elide-constructors -emit-llvm -o - %s | FileCheck %s --check-prefix=CHECK --check-prefix=CHECK-CXX98
|
||
|
|
// RUN: %clang_cc1 -std=c++11 -triple i386-unknown-unknown -fno-elide-constructors -emit-llvm -o - %s | FileCheck %s --check-prefix=CHECK --check-prefix=CHECK-CXX11
|
||
|
|
// RUN: %clang_cc1 -std=c++98 -triple i386-unknown-unknown -emit-llvm -o - %s | FileCheck %s --check-prefix=CHECK --check-prefix=CHECK-CXX98-ELIDE
|
||
|
|
// RUN: %clang_cc1 -std=c++11 -triple i386-unknown-unknown -emit-llvm -o - %s | FileCheck %s --check-prefix=CHECK --check-prefix=CHECK-CXX11-ELIDE
|
||
|
|
|
||
|
|
// Reduced from PR12208
|
||
|
|
class X {
|
||
|
|
public:
|
||
|
|
X();
|
||
|
|
X(const X&);
|
||
|
|
#if __cplusplus >= 201103L
|
||
|
|
X(X&&);
|
||
|
|
#endif
|
||
|
|
~X();
|
||
|
|
};
|
||
|
|
|
||
|
|
// CHECK-LABEL: define{{.*}} void @_Z4Testv(
|
||
|
|
X Test()
|
||
|
|
{
|
||
|
|
X x;
|
||
|
|
|
||
|
|
// Check that the copy constructor for X is called with result variable as
|
||
|
|
// sret argument.
|
||
|
|
// CHECK-CXX98: call void @_ZN1XC1ERKS_(
|
||
|
|
// CHECK-CXX11: call void @_ZN1XC1EOS_(
|
||
|
|
// CHECK-CXX98-ELIDE-NOT: call void @_ZN1XC1ERKS_(
|
||
|
|
// CHECK-CXX11-ELIDE-NOT: call void @_ZN1XC1EOS_(
|
||
|
|
|
||
|
|
// Make sure that the destructor for X is called.
|
||
|
|
// FIXME: This call is present even in the -ELIDE runs, but is guarded by a
|
||
|
|
// branch that is never taken in those cases. We could generate better IR
|
||
|
|
// here.
|
||
|
|
// CHECK: call void @_ZN1XD1Ev(
|
||
|
|
return x;
|
||
|
|
}
|