// RUN: %clang_cc1 -emit-llvm-only -triple x86_64-linux-gnu -verify %s
// RUN: %clang_cc1 -emit-llvm-only -triple x86_64-apple-macosx -verify %s
// RUN: %clang_cc1 -emit-llvm-only -triple arm64-apple-macosx -verify %s
// RUN: not %clang_cc1 -triple x86_64-linux -emit-llvm-only -fdiagnostics-parseable-fixits %s 2>&1 | FileCheck %s
// RUN: not %clang_cc1 -triple x86_64-apple-macosx -emit-llvm-only -fdiagnostics-parseable-fixits %s 2>&1 | FileCheck %s
// RUN: not %clang_cc1 -triple arm64-apple-macosx -emit-llvm-only -fdiagnostics-parseable-fixits %s 2>&1 | FileCheck %s

extern "C" {
__attribute__((used)) static void *resolve_foo() { return 0; }
namespace NS {
__attribute__((used)) static void *resolve_foo() { return 0; }
} // namespace NS

// FIXME: This diagnostic is pretty confusing, the issue is that the existence
// of the two functions suppresses the 'alias' creation, and thus the ifunc
// resolution via the alias as well. In the future we should probably find
// some way to improve this diagnostic (likely by diagnosing when we decide
// this case suppresses alias creation).
__attribute__((ifunc("resolve_foo"))) void foo(); // expected-error{{ifunc must point to a defined function}}
// expected-note@-1 {{must refer to its mangled name}}
// expected-note@-2 {{function by that name is mangled as}}
// expected-note@-3 {{function by that name is mangled as}}
// CHECK: fix-it:"{{.*}}":{[[@LINE-4]]:16-[[@LINE-4]]:36}:"ifunc(\"_ZL11resolve_foov\")"
// CHECK: fix-it:"{{.*}}":{[[@LINE-5]]:16-[[@LINE-5]]:36}:"ifunc(\"_ZN2NSL11resolve_fooEv\")"
}