llvm-project/clang/test/SemaCXX/linkage.cpp

69 lines
1.4 KiB
C++

// This is an IR generation test because the calculation of visibility
// during IR gen will cause linkage to be implicitly recomputed and
// compared against the earlier cached value. If we had a way of
// testing linkage directly in Sema, that would be better.
// RUN: %clang_cc1 -triple x86_64-apple-darwin10 -emit-llvm %s -o - | FileCheck %s
// PR8926
namespace test0 {
typedef struct {
void *foo() { return 0; }
} A;
// CHECK: define linkonce_odr i8* @_ZN5test01A3fooEv(
void test(A *a) {
a->foo();
}
}
namespace test1 {
typedef struct {
template <unsigned n> void *foo() { return 0; }
void foo() {
foo<0>();
}
} A;
// CHECK: define linkonce_odr void @_ZN5test11A3fooEv(
// another at the end
void test(A *a) {
a->foo();
}
}
namespace test2 {
typedef struct {
template <unsigned n> struct B {
void *foo() { return 0; }
};
void foo(B<0> *b) {
b->foo();
}
} A;
// CHECK: define linkonce_odr void @_ZN5test21A3fooEPNS0_1BILj0EEE(
void test(A *a) {
a->foo(0);
}
}
namespace test3 {
namespace { struct A {}; }
// CHECK: define internal void @_ZN5test34testENS_12_GLOBAL__N_11AE(
void test(A a) {}
void force() { test(A()); }
// CHECK: define void @test3(
extern "C" void test3(A a) {}
}
// CHECK: define linkonce_odr i8* @_ZN5test21A1BILj0EE3fooEv(
// CHECK: define linkonce_odr i8* @_ZN5test11A3fooILj0EEEPvv(