llvm-project/clang/test/CodeGenCXX/attr-used.cpp

28 lines
894 B
C++

// RUN: %clang_cc1 -emit-llvm -triple %itanium_abi_triple -o - %s | FileCheck %s
// <rdar://problem/8684363>: clang++ not respecting __attribute__((used)) on destructors
struct X0 {
// CHECK-DAG: define linkonce_odr {{.*}} @_ZN2X0C1Ev
__attribute__((used)) X0() {}
// CHECK-DAG: define linkonce_odr {{.*}} @_ZN2X0D1Ev
__attribute__((used)) ~X0() {}
};
// PR19743: not emitting __attribute__((used)) inline methods in nested classes.
struct X1 {
struct Nested {
// CHECK-DAG: define linkonce_odr {{.*}} @_ZN2X16Nested1fEv
void __attribute__((used)) f() {}
};
};
struct X2 {
// We must delay emission of bar() until foo() has had its body parsed,
// otherwise foo() would not be emitted.
void __attribute__((used)) bar() { foo(); }
void foo() { }
// CHECK-DAG: define linkonce_odr {{.*}} @_ZN2X23barEv
// CHECK-DAG: define linkonce_odr {{.*}} @_ZN2X23fooEv
};