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llvm-project/clang/test/CodeGenCXX/cxx0x-initializer-stdinitializerlist.cpp
Nikita Popov e1cc9e4ead
[ConstantFold] Remove non-trivial gep-of-gep fold (#93823) 
This fold is subtly incorrect, because DL-unaware constant folding does
not know the correct index type to use, and just performs the addition
in the type that happens to already be there. This is incorrect, since
sext(X)+sext(Y) is generally not the same as sext(X+Y). See the
`@constexpr_gep_of_gep_with_narrow_type()` for a miscompile with the
current implementation.

One could try to restrict the fold to cases where no overflow occurs,
but I'm not bothering with that here, because the DL-aware constant
folding will take care of this anyway. I've only kept the
straightforward zero-index case, where we just concatenate two GEPs.
2024-05-31 09:25:38 +02:00

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// RUN: %clang_cc1 -std=c++11 -triple x86_64-none-linux-gnu -fmerge-all-constants -emit-llvm -o - %s | FileCheck -check-prefixes=X86,CHECK %s
// RUN: %clang_cc1 -std=c++11 -triple amdgcn-amd-amdhsa -DNO_TLS -fmerge-all-constants -emit-llvm -o - %s | FileCheck -check-prefixes=AMDGCN,CHECK %s
namespace std {
typedef decltype(sizeof(int)) size_t;
// libc++'s implementation
template <class _E>
class initializer_list
{
const _E* __begin_;
size_t __size_;
initializer_list(const _E* __b, size_t __s)
: __begin_(__b),
__size_(__s)
{}
public:
typedef _E value_type;
typedef const _E& reference;
typedef const _E& const_reference;
typedef size_t size_type;
typedef const _E* iterator;
typedef const _E* const_iterator;
initializer_list() : __begin_(nullptr), __size_(0) {}
size_t size() const {return __size_;}
const _E* begin() const {return __begin_;}
const _E* end() const {return __begin_ + __size_;}
};
}
struct destroyme1 {
~destroyme1();
};
struct destroyme2 {
~destroyme2();
};
struct witharg1 {
witharg1(const destroyme1&);
~witharg1();
};
struct wantslist1 {
wantslist1(std::initializer_list<destroyme1>);
~wantslist1();
};
// X86: @_ZGR15globalInitList1_ = internal constant [3 x i32] [i32 1, i32 2, i32 3]
// X86: @globalInitList1 ={{.*}} global %{{[^ ]+}} { ptr @_ZGR15globalInitList1_, i{{32|64}} 3 }
// AMDGCN: @_ZGR15globalInitList1_ = internal addrspace(1) constant [3 x i32] [i32 1, i32 2, i32 3]
// AMDGCN: @globalInitList1 ={{.*}} addrspace(1) global %{{[^ ]+}} { ptr addrspacecast (ptr addrspace(1) @_ZGR15globalInitList1_ to ptr), i{{32|64}} 3 }
std::initializer_list<int> globalInitList1 = {1, 2, 3};
#ifndef NO_TLS
namespace thread_local_global_array {
// FIXME: We should be able to constant-evaluate this even though the
// initializer is not a constant expression (pointers to thread_local
// objects aren't really a problem).
//
// X86: @_ZN25thread_local_global_array1xE ={{.*}} thread_local global
// X86: @_ZGRN25thread_local_global_array1xE_ = internal thread_local constant [4 x i32] [i32 1, i32 2, i32 3, i32 4]
std::initializer_list<int> thread_local x = {1, 2, 3, 4};
}
#endif
// X86: @globalInitList2 ={{.*}} global %{{[^ ]+}} zeroinitializer
// X86: @_ZGR15globalInitList2_ = internal global [2 x %[[WITHARG:[^ ]*]]] zeroinitializer
// AMDGCN: @globalInitList2 ={{.*}} addrspace(1) global %{{[^ ]+}} zeroinitializer
// AMDGCN: @_ZGR15globalInitList2_ = internal addrspace(1) global [2 x %[[WITHARG:[^ ]*]]] zeroinitializer
// X86: @_ZN15partly_constant1kE ={{.*}} global i32 0, align 4
// X86: @_ZN15partly_constant2ilE ={{.*}} global {{.*}} null, align 8
// X86: @[[PARTLY_CONSTANT_OUTER:_ZGRN15partly_constant2ilE_]] = internal global {{.*}} zeroinitializer, align 8
// X86: @[[PARTLY_CONSTANT_INNER:_ZGRN15partly_constant2ilE0_]] = internal global [3 x {{.*}}] zeroinitializer, align 8
// X86: @[[PARTLY_CONSTANT_FIRST:_ZGRN15partly_constant2ilE1_]] = internal constant [3 x i32] [i32 1, i32 2, i32 3], align 4
// X86: @[[PARTLY_CONSTANT_SECOND:_ZGRN15partly_constant2ilE2_]] = internal global [2 x i32] zeroinitializer, align 4
// X86: @[[PARTLY_CONSTANT_THIRD:_ZGRN15partly_constant2ilE3_]] = internal constant [4 x i32] [i32 5, i32 6, i32 7, i32 8], align 4
// AMDGCN: @_ZN15partly_constant1kE ={{.*}} addrspace(1) global i32 0, align 4
// AMDGCN: @_ZN15partly_constant2ilE ={{.*}} addrspace(1) global {{.*}} null, align 8
// AMDGCN: @[[PARTLY_CONSTANT_OUTER:_ZGRN15partly_constant2ilE_]] = internal addrspace(1) global {{.*}} zeroinitializer, align 8
// AMDGCN: @[[PARTLY_CONSTANT_INNER:_ZGRN15partly_constant2ilE0_]] = internal addrspace(1) global [3 x {{.*}}] zeroinitializer, align 8
// AMDGCN: @[[PARTLY_CONSTANT_FIRST:_ZGRN15partly_constant2ilE1_]] = internal addrspace(1) constant [3 x i32] [i32 1, i32 2, i32 3], align 4
// AMDGCN: @[[PARTLY_CONSTANT_SECOND:_ZGRN15partly_constant2ilE2_]] = internal addrspace(1) global [2 x i32] zeroinitializer, align 4
// AMDGCN: @[[PARTLY_CONSTANT_THIRD:_ZGRN15partly_constant2ilE3_]] = internal addrspace(1) constant [4 x i32] [i32 5, i32 6, i32 7, i32 8], align 4
// X86: @[[REFTMP1:.*]] = private constant [2 x i32] [i32 42, i32 43], align 4
// X86: @[[REFTMP2:.*]] = private constant [3 x %{{.*}}] [%{{.*}} { i32 1 }, %{{.*}} { i32 2 }, %{{.*}} { i32 3 }], align 4
// AMDGCN: @[[REFTMP1:.*]] = private addrspace(4) constant [2 x i32] [i32 42, i32 43], align 4
// AMDGCN: @[[REFTMP2:.*]] = private addrspace(4) constant [3 x %{{.*}}] [%{{.*}} { i32 1 }, %{{.*}} { i32 2 }, %{{.*}} { i32 3 }], align 4
// CHECK: appending global
// thread_local initializer:
// X86-LABEL: define internal void @__cxx_global_var_init
// X86: [[ADDR:%.*]] = call {{.*}} ptr @llvm.threadlocal.address.p0(ptr {{.*}} @_ZN25thread_local_global_array1xE)
// X86: store ptr @_ZGRN25thread_local_global_array1xE_, ptr [[ADDR]], align 8
// X86: store i64 4, ptr getelementptr inbounds ({{.*}}, ptr @_ZN25thread_local_global_array1xE, i32 0, i32 1), align 8
// CHECK-LABEL: define internal void @__cxx_global_var_init
// X86: call void @_ZN8witharg1C1ERK10destroyme1(ptr {{[^,]*}} @_ZGR15globalInitList2_
// X86: call void @_ZN8witharg1C1ERK10destroyme1(ptr {{[^,]*}} getelementptr inbounds (%[[WITHARG]], ptr @_ZGR15globalInitList2_, i{{32|64}} 1)
// AMDGCN: call void @_ZN8witharg1C1ERK10destroyme1(ptr {{[^,]*}} addrspacecast ({{[^@]+}} @_ZGR15globalInitList2_ {{[^)]+}}
// AMDGCN: call void @_ZN8witharg1C1ERK10destroyme1(ptr {{[^,]*}} getelementptr inbounds (%[[WITHARG]], ptr addrspacecast ({{[^@]+}} @_ZGR15globalInitList2_ {{[^)]+}}), i{{32|64}} 1
// CHECK: call i32 @__cxa_atexit
// X86: store ptr @_ZGR15globalInitList2_, ptr @globalInitList2, align 8
// X86: store i64 2, ptr getelementptr inbounds (%{{.*}}, ptr @globalInitList2, i32 0, i32 1), align 8
// AMDGCN: store ptr addrspacecast ({{[^@]+}} @_ZGR15globalInitList2_ {{[^)]+}}),
// AMDGCN: ptr addrspacecast ({{[^@]+}} @globalInitList2 {{[^)]+}}), align 8
// AMDGCN: store i64 2, ptr getelementptr inbounds (%{{.*}}, ptr addrspacecast ({{[^@]+}} @globalInitList2 {{[^)]+}}), i32 0, i32 1), align 8
// CHECK: call void @_ZN10destroyme1D1Ev
// CHECK-NEXT: call void @_ZN10destroyme1D1Ev
// CHECK-NEXT: ret void
std::initializer_list<witharg1> globalInitList2 = {
witharg1(destroyme1()), witharg1(destroyme1())
};
void fn1(int i) {
// CHECK-LABEL: define{{.*}} void @_Z3fn1i
// temporary array
// X86: [[array:%[^ ]+]] = alloca [3 x i32]
// AMDGCN: [[alloca:%[^ ]+]] = alloca [3 x i32], align 4, addrspace(5)
// AMDGCN: [[array:%[^ ]+]] ={{.*}} addrspacecast ptr addrspace(5) [[alloca]] to ptr
// CHECK: getelementptr inbounds [3 x i32], ptr [[array]], i{{32|64}} 0
// CHECK-NEXT: store i32 1, ptr
// CHECK-NEXT: getelementptr
// CHECK-NEXT: store
// CHECK-NEXT: getelementptr
// CHECK-NEXT: load
// CHECK-NEXT: store
// init the list
// CHECK-NEXT: getelementptr
// CHECK-NEXT: store ptr
// CHECK-NEXT: getelementptr
// CHECK-NEXT: store i{{32|64}} 3
std::initializer_list<int> intlist{1, 2, i};
}
void fn2() {
// CHECK-LABEL: define{{.*}} void @_Z3fn2v
void target(std::initializer_list<destroyme1>);
// objects should be destroyed before dm2, after call returns
// CHECK: call void @_Z6targetSt16initializer_listI10destroyme1E
target({ destroyme1(), destroyme1() });
// CHECK: call void @_ZN10destroyme1D1Ev
destroyme2 dm2;
// CHECK: call void @_ZN10destroyme2D1Ev
}
void fn3() {
// CHECK-LABEL: define{{.*}} void @_Z3fn3v
// objects should be destroyed after dm2
auto list = { destroyme1(), destroyme1() };
destroyme2 dm2;
// CHECK: call void @_ZN10destroyme2D1Ev
// CHECK: call void @_ZN10destroyme1D1Ev
}
void fn4() {
// CHECK-LABEL: define{{.*}} void @_Z3fn4v
void target(std::initializer_list<witharg1>);
// objects should be destroyed before dm2, after call returns
// CHECK: call void @_ZN8witharg1C1ERK10destroyme1
// CHECK: call void @_Z6targetSt16initializer_listI8witharg1E
target({ witharg1(destroyme1()), witharg1(destroyme1()) });
// CHECK: call void @_ZN8witharg1D1Ev
// CHECK: call void @_ZN10destroyme1D1Ev
destroyme2 dm2;
// CHECK: call void @_ZN10destroyme2D1Ev
}
void fn5() {
// CHECK-LABEL: define{{.*}} void @_Z3fn5v
// temps should be destroyed before dm2
// objects should be destroyed after dm2
// CHECK: call void @_ZN8witharg1C1ERK10destroyme1
auto list = { witharg1(destroyme1()), witharg1(destroyme1()) };
// CHECK: call void @_ZN10destroyme1D1Ev
destroyme2 dm2;
// CHECK: call void @_ZN10destroyme2D1Ev
// CHECK: call void @_ZN8witharg1D1Ev
}
void fn6() {
// CHECK-LABEL: define{{.*}} void @_Z3fn6v
void target(const wantslist1&);
// objects should be destroyed before dm2, after call returns
// CHECK: call void @_ZN10wantslist1C1ESt16initializer_listI10destroyme1E
// CHECK: call void @_Z6targetRK10wantslist1
target({ destroyme1(), destroyme1() });
// CHECK: call void @_ZN10wantslist1D1Ev
// CHECK: call void @_ZN10destroyme1D1Ev
destroyme2 dm2;
// CHECK: call void @_ZN10destroyme2D1Ev
}
void fn7() {
// CHECK-LABEL: define{{.*}} void @_Z3fn7v
// temps should be destroyed before dm2
// object should be destroyed after dm2
// CHECK: call void @_ZN10wantslist1C1ESt16initializer_listI10destroyme1E
wantslist1 wl = { destroyme1(), destroyme1() };
// CHECK: call void @_ZN10destroyme1D1Ev
destroyme2 dm2;
// CHECK: call void @_ZN10destroyme2D1Ev
// CHECK: call void @_ZN10wantslist1D1Ev
}
void fn8() {
// CHECK-LABEL: define{{.*}} void @_Z3fn8v
void target(std::initializer_list<std::initializer_list<destroyme1>>);
// objects should be destroyed before dm2, after call returns
// CHECK: call void @_Z6targetSt16initializer_listIS_I10destroyme1EE
std::initializer_list<destroyme1> inner;
target({ inner, { destroyme1() } });
// CHECK: call void @_ZN10destroyme1D1Ev
// Only one destroy loop, since only one inner init list is directly inited.
// CHECK-NOT: call void @_ZN10destroyme1D1Ev
destroyme2 dm2;
// CHECK: call void @_ZN10destroyme2D1Ev
}
void fn9() {
// CHECK-LABEL: define{{.*}} void @_Z3fn9v
// objects should be destroyed after dm2
std::initializer_list<destroyme1> inner;
std::initializer_list<std::initializer_list<destroyme1>> list =
{ inner, { destroyme1() } };
destroyme2 dm2;
// CHECK: call void @_ZN10destroyme2D1Ev
// CHECK: call void @_ZN10destroyme1D1Ev
// Only one destroy loop, since only one inner init list is directly inited.
// CHECK-NOT: call void @_ZN10destroyme1D1Ev
// CHECK: ret void
}
void fn10(int i) {
// CHECK-LABEL: define{{.*}} void @_Z4fn10i
// CHECK: alloca [3 x i32]
// CHECK-X86: call noalias nonnull align 16 ptr @_Znw{{[jm]}}
// CHECK-AMDGPU: call noalias nonnull align 8 ptr @_Znw{{[jm]}}
// CHECK: store i32 %
// CHECK: store i32 2
// CHECK: store i32 3
// CHECK: store ptr
(void) new std::initializer_list<int> {i, 2, 3};
}
void fn11() {
// CHECK-LABEL: define{{.*}} void @_Z4fn11v
(void) new std::initializer_list<destroyme1> {destroyme1(), destroyme1()};
// CHECK: call void @_ZN10destroyme1D1Ev
destroyme2 dm2;
// CHECK: call void @_ZN10destroyme2D1Ev
}
namespace PR12178 {
struct string {
string(int);
~string();
};
struct pair {
string a;
int b;
};
struct map {
map(std::initializer_list<pair>);
};
map m{ {1, 2}, {3, 4} };
}
namespace rdar13325066 {
struct X { ~X(); };
// CHECK-LABEL: define{{.*}} void @_ZN12rdar133250664loopERNS_1XES1_
void loop(X &x1, X &x2) {
// CHECK: br label
// CHECK: br i1
// CHECK: br label
// CHECK: call void @_ZN12rdar133250661XD1Ev
// CHECK: br label
// CHECK: br label
// CHECK: call void @_ZN12rdar133250661XD1Ev
// CHECK: br i1
// CHECK: br label
// CHECK: ret void
for (X x : { x1, x2 }) { }
}
}
namespace dtors {
struct S {
S();
~S();
};
void z();
// CHECK-LABEL: define{{.*}} void @_ZN5dtors1fEv(
void f() {
// CHECK: call void @_ZN5dtors1SC1Ev(
// CHECK: call void @_ZN5dtors1SC1Ev(
std::initializer_list<S>{ S(), S() };
// Destruction loop for underlying array.
// CHECK: br label
// CHECK: call void @_ZN5dtors1SD1Ev(
// CHECK: br i1
// CHECK: call void @_ZN5dtors1zEv(
z();
// CHECK-NOT: call void @_ZN5dtors1SD1Ev(
}
// CHECK-LABEL: define{{.*}} void @_ZN5dtors1gEv(
void g() {
// CHECK: call void @_ZN5dtors1SC1Ev(
// CHECK: call void @_ZN5dtors1SC1Ev(
auto x = std::initializer_list<S>{ S(), S() };
// Destruction loop for underlying array.
// CHECK: br label
// CHECK: call void @_ZN5dtors1SD1Ev(
// CHECK: br i1
// CHECK: call void @_ZN5dtors1zEv(
z();
// CHECK-NOT: call void @_ZN5dtors1SD1Ev(
}
// CHECK-LABEL: define{{.*}} void @_ZN5dtors1hEv(
void h() {
// CHECK: call void @_ZN5dtors1SC1Ev(
// CHECK: call void @_ZN5dtors1SC1Ev(
std::initializer_list<S> x = { S(), S() };
// CHECK-NOT: call void @_ZN5dtors1SD1Ev(
// CHECK: call void @_ZN5dtors1zEv(
z();
// Destruction loop for underlying array.
// CHECK: br label
// CHECK: call void @_ZN5dtors1SD1Ev(
// CHECK: br i1
}
}
namespace partly_constant {
int k;
std::initializer_list<std::initializer_list<int>> &&il = { { 1, 2, 3 }, { 4, k }, { 5, 6, 7, 8 } };
// First init list.
// CHECK-NOT: @[[PARTLY_CONSTANT_FIRST]],
// CHECK: store ptr {{.*}}@[[PARTLY_CONSTANT_FIRST]]{{.*}}, ptr {{.*}}@[[PARTLY_CONSTANT_INNER]]{{.*}}
// CHECK: store i64 3, ptr getelementptr inbounds ({{.*}}, ptr {{.*}}@[[PARTLY_CONSTANT_INNER]]{{.*}}, i32 0, i32 1)
// CHECK-NOT: @[[PARTLY_CONSTANT_FIRST]],
//
// Second init list array (non-constant).
// CHECK: store i32 4, ptr {{.*}}@[[PARTLY_CONSTANT_SECOND]]{{.*}}
// CHECK: load i32, ptr {{.*}}@_ZN15partly_constant1kE
// CHECK: store i32 {{.*}}, ptr getelementptr inbounds ({{.*}}, ptr {{.*}}@[[PARTLY_CONSTANT_SECOND]]{{.*}}, i64 1)
//
// Second init list.
// CHECK: store ptr {{.*}}@[[PARTLY_CONSTANT_SECOND]]{{.*}}, ptr getelementptr inbounds ({{.*}}, ptr {{.*}}@[[PARTLY_CONSTANT_INNER]]{{.*}}, i64 1)
// CHECK: store i64 2, ptr getelementptr inbounds ({{.*}}, ptr {{.*}}@[[PARTLY_CONSTANT_INNER]]{{.*}}, i64 1, i32 1)
//
// Third init list.
// CHECK-NOT: @[[PARTLY_CONSTANT_THIRD]],
// CHECK: store ptr {{.*}}@[[PARTLY_CONSTANT_THIRD]]{{.*}}, ptr getelementptr inbounds ({{.*}}, ptr getelementptr inbounds ({{.*}}, ptr {{.*}}@[[PARTLY_CONSTANT_INNER]]{{.*}}, i64 1), i64 1)
// CHECK: store i64 4, ptr getelementptr inbounds ({{.*}}, ptr getelementptr inbounds ({{.*}}, ptr {{.*}}@[[PARTLY_CONSTANT_INNER]]{{.*}}, i64 1), i64 1, i32 1)
// CHECK-NOT: @[[PARTLY_CONSTANT_THIRD]],
//
// Outer init list.
// CHECK: store ptr {{.*}}@[[PARTLY_CONSTANT_INNER]]{{.*}}, ptr {{.*}}@[[PARTLY_CONSTANT_OUTER]]{{.*}}
// CHECK: store i64 3, ptr getelementptr inbounds ({{.*}}, ptr {{.*}}@[[PARTLY_CONSTANT_OUTER]]{{.*}}, i32 0, i32 1)
//
// 'il' reference.
// CHECK: store ptr {{.*}}@[[PARTLY_CONSTANT_OUTER]]{{.*}}, ptr {{.*}}@_ZN15partly_constant2ilE{{.*}}, align 8
}
namespace nested {
struct A { A(); ~A(); };
struct B { const A &a; ~B(); };
struct C { std::initializer_list<B> b; ~C(); };
void f();
// CHECK-LABEL: define{{.*}} void @_ZN6nested1gEv(
void g() {
// CHECK: call void @_ZN6nested1AC1Ev(
// CHECK-NOT: call
// CHECK: call void @_ZN6nested1AC1Ev(
// CHECK-NOT: call
const C &c { { { A() }, { A() } } };
// CHECK: call void @_ZN6nested1fEv(
// CHECK-NOT: call
f();
// CHECK: call void @_ZN6nested1CD1Ev(
// CHECK-NOT: call
// Destroy B[2] array.
// FIXME: This isn't technically correct: reverse construction order would
// destroy the second B then the second A then the first B then the first A.
// CHECK: call void @_ZN6nested1BD1Ev(
// CHECK-NOT: call
// CHECK: br
// CHECK-NOT: call
// CHECK: call void @_ZN6nested1AD1Ev(
// CHECK-NOT: call
// CHECK: call void @_ZN6nested1AD1Ev(
// CHECK-NOT: call
// CHECK: }
}
}
namespace DR1070 {
struct A {
A(std::initializer_list<int>);
};
struct B {
int i;
A a;
};
B b = {1};
struct C {
std::initializer_list<int> a;
B b;
std::initializer_list<double> c;
};
C c = {};
}
namespace ArrayOfInitList {
struct S {
S(std::initializer_list<int>);
};
S x[1] = {};
}
namespace PR20445 {
struct vector { vector(std::initializer_list<int>); };
struct MyClass { explicit MyClass(const vector &v); };
template<int x> void f() { new MyClass({42, 43}); }
template void f<0>();
// CHECK-LABEL: define {{.*}} @_ZN7PR204451fILi0EEEvv(
// CHECK: store ptr {{.*}}@[[REFTMP1]]{{.*}}
// CHECK: call void @_ZN7PR204456vectorC1ESt16initializer_listIiE(
// CHECK: call void @_ZN7PR204457MyClassC1ERKNS_6vectorE(
}
namespace ConstExpr {
class C {
int x;
public:
constexpr C(int x) : x(x) {}
};
void f(std::initializer_list<C>);
void g() {
// CHECK-LABEL: _ZN9ConstExpr1gEv
// CHECK: store ptr {{.*}}@[[REFTMP2]]{{.*}}
// CHECK: call void @_ZN9ConstExpr1fESt16initializer_listINS_1CEE
f({C(1), C(2), C(3)});
}
}
namespace B19773010 {
template <class T1, class T2> struct pair {
T1 first;
T2 second;
constexpr pair() : first(), second() {}
constexpr pair(T1 a, T2 b) : first(a), second(b) {}
};
enum E { ENUM_CONSTANT };
struct testcase {
testcase(std::initializer_list<pair<const char *, E>>);
};
void f1() {
// CHECK-LABEL: @_ZN9B197730102f1Ev
testcase a{{"", ENUM_CONSTANT}};
// X86: store ptr @.ref.tmp{{.*}}, ptr %{{.*}}, align 8
// AMDGCN: store ptr addrspacecast{{.*}} @.ref.tmp{{.*}}{{.*}}, ptr %{{.*}}, align 8
}
void f2() {
// CHECK-LABEL: @_ZN9B197730102f2Ev
// X86: store ptr @_ZGRZN9B197730102f2EvE1p_, ptr getelementptr inbounds (%"class.std::initializer_list.10", ptr @_ZZN9B197730102f2EvE1p, i64 1), align 16
// AMDGCN: store ptr addrspacecast{{.*}} @_ZGRZN9B197730102f2EvE1p_{{.*}}, ptr getelementptr inbounds (%"class.std::initializer_list.10", ptr addrspacecast{{.*}}@_ZZN9B197730102f2EvE1p{{.*}}, i64 1), align 8
static std::initializer_list<pair<const char *, E>> a, p[2] =
{a, {{"", ENUM_CONSTANT}}};
}
void PR22940_helper(const pair<void*, int>&) { }
void PR22940() {
// CHECK-LABEL: @_ZN9B197730107PR22940Ev
// CHECK: call {{.*}} @_ZN9B197730104pairIPviEC{{.}}Ev(
// CHECK: call {{.*}} @_ZN9B1977301014PR22940_helperERKNS_4pairIPviEE(
PR22940_helper(pair<void*, int>());
}
}
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