forked from OSchip/llvm-project
125 lines
2.6 KiB
C++
125 lines
2.6 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 -Werror -Wno-non-c-typedef-for-linkage -triple x86_64-apple-darwin10 -emit-llvm %s -o - | FileCheck %s
|
|
|
|
// CHECK: @_ZZN5test61A3fooEvE3bar = linkonce_odr global i32 0, align 4
|
|
|
|
// 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) {}
|
|
}
|
|
|
|
namespace {
|
|
// CHECK: define void @test4(
|
|
extern "C" void test4(void) {}
|
|
}
|
|
|
|
// PR9316: Ensure that even non-namespace-scope function declarations in
|
|
// a C declaration context respect that over the anonymous namespace.
|
|
extern "C" {
|
|
namespace {
|
|
struct X {
|
|
int f() {
|
|
extern int g();
|
|
extern int a;
|
|
|
|
// Test both for mangling in the code generation and warnings from use
|
|
// of internal, undefined names via -Werror.
|
|
// CHECK: call i32 @g(
|
|
// CHECK: load i32, i32* @a,
|
|
return g() + a;
|
|
}
|
|
};
|
|
}
|
|
// Force the above function to be emitted by codegen.
|
|
int test(X& x) {
|
|
return x.f();
|
|
}
|
|
}
|
|
|
|
// CHECK: define linkonce_odr i8* @_ZN5test11A3fooILj0EEEPvv(
|
|
// CHECK: define linkonce_odr i8* @_ZN5test21A1BILj0EE3fooEv(
|
|
|
|
namespace test5 {
|
|
struct foo {
|
|
};
|
|
extern "C" {
|
|
const foo bar[] = {
|
|
};
|
|
}
|
|
}
|
|
|
|
// Test that we don't compute linkage too hastily before we're done
|
|
// processing a record decl. rdar://15928125
|
|
namespace test6 {
|
|
typedef struct {
|
|
int foo() {
|
|
// Tested at top of file.
|
|
static int bar = 0;
|
|
return bar++;
|
|
}
|
|
} A;
|
|
|
|
void test() {
|
|
A a;
|
|
a.foo();
|
|
}
|
|
}
|