зеркало из https://github.com/microsoft/clang-1.git
269 строки
6.7 KiB
C++
269 строки
6.7 KiB
C++
// RUN: %clang_cc1 %s -triple x86_64-apple-darwin10 -emit-llvm -o - | FileCheck %s
|
|
|
|
struct A {
|
|
virtual ~A();
|
|
};
|
|
|
|
struct B : A { };
|
|
|
|
struct C {
|
|
int i;
|
|
B b;
|
|
};
|
|
|
|
// CHECK: _Z15test_value_initv
|
|
void test_value_init() {
|
|
// This value initialization requires zero initialization of the 'B'
|
|
// subobject followed by a call to its constructor.
|
|
// PR5800
|
|
|
|
// CHECK: store i32 17
|
|
// CHECK: call void @llvm.memset.p0i8.i64
|
|
// CHECK: call void @_ZN1BC1Ev
|
|
C c = { 17 } ;
|
|
// CHECK: call void @_ZN1CD1Ev
|
|
}
|
|
|
|
enum enum_type { negative_number = -1, magic_number = 42 };
|
|
|
|
class enum_holder
|
|
{
|
|
enum_type m_enum;
|
|
|
|
public:
|
|
enum_holder() : m_enum(magic_number) { }
|
|
};
|
|
|
|
struct enum_holder_and_int
|
|
{
|
|
enum_holder e;
|
|
int i;
|
|
};
|
|
|
|
// CHECK: _Z24test_enum_holder_and_intv()
|
|
void test_enum_holder_and_int() {
|
|
// CHECK: alloca
|
|
// CHECK-NEXT: bitcast
|
|
// CHECK-NEXT: call void @llvm.memset
|
|
// CHECK-NEXT: call void @_ZN19enum_holder_and_intC1Ev
|
|
enum_holder_and_int();
|
|
// CHECK-NEXT: ret void
|
|
}
|
|
|
|
// PR7834: don't crash.
|
|
namespace test1 {
|
|
struct A {
|
|
int A::*f;
|
|
A();
|
|
A(const A&);
|
|
A &operator=(const A &);
|
|
};
|
|
|
|
struct B {
|
|
A base;
|
|
};
|
|
|
|
void foo() {
|
|
B();
|
|
}
|
|
}
|
|
|
|
namespace ptrmem {
|
|
struct S {
|
|
int mem1;
|
|
int S::*mem2;
|
|
};
|
|
|
|
// CHECK: define i32 @_ZN6ptrmem4testEPNS_1SE
|
|
int test(S *s) {
|
|
// CHECK: call void @llvm.memcpy.p0i8.p0i8.i64
|
|
// CHECK: getelementptr
|
|
// CHECK: ret
|
|
return s->*S().mem2;
|
|
}
|
|
}
|
|
|
|
namespace PR9801 {
|
|
|
|
struct Test {
|
|
Test() : i(10) {}
|
|
Test(int i) : i(i) {}
|
|
int i;
|
|
private:
|
|
int j;
|
|
};
|
|
|
|
struct Test2 {
|
|
Test t;
|
|
};
|
|
|
|
struct Test3 : public Test { };
|
|
|
|
// CHECK: define void @_ZN6PR98011fEv
|
|
void f() {
|
|
// CHECK-NOT: call void @llvm.memset.p0i8.i64
|
|
// CHECK: call void @_ZN6PR98014TestC1Ei
|
|
// CHECK-NOT: call void @llvm.memset.p0i8.i64
|
|
// CHECK: call void @_ZN6PR98014TestC1Ev
|
|
Test partial[3] = { 1 };
|
|
|
|
// CHECK-NOT: call void @llvm.memset.p0i8.i64
|
|
// CHECK: call void @_ZN6PR98014TestC1Ev
|
|
// CHECK-NOT: call void @_ZN6PR98014TestC1Ev
|
|
Test empty[3] = {};
|
|
|
|
// CHECK: call void @llvm.memset.p0i8.i64
|
|
// CHECK-NOT: call void @llvm.memset.p0i8.i64
|
|
// CHECK: call void @_ZN6PR98015Test2C1Ev
|
|
// CHECK-NOT: call void @_ZN6PR98015Test2C1Ev
|
|
Test2 empty2[3] = {};
|
|
|
|
// CHECK: call void @llvm.memset.p0i8.i64
|
|
// CHECK-NOT: call void @llvm.memset.p0i8.i64
|
|
// CHECK: call void @_ZN6PR98015Test3C1Ev
|
|
// CHECK-NOT: call void @llvm.memset.p0i8.i64
|
|
// CHECK-NOT: call void @_ZN6PR98015Test3C1Ev
|
|
Test3 empty3[3] = {};
|
|
}
|
|
|
|
}
|
|
|
|
namespace zeroinit {
|
|
struct S { int i; };
|
|
|
|
// CHECK: define i32 @_ZN8zeroinit4testEv()
|
|
int test() {
|
|
// CHECK: call void @llvm.memset.p0i8.i64
|
|
// CHECK: ret i32 0
|
|
return S().i;
|
|
}
|
|
|
|
struct X0 {
|
|
X0() { }
|
|
int x;
|
|
};
|
|
|
|
struct X1 : X0 {
|
|
int x1;
|
|
void f();
|
|
};
|
|
|
|
// CHECK: define void @_ZN8zeroinit9testX0_X1Ev
|
|
void testX0_X1() {
|
|
// CHECK: call void @llvm.memset.p0i8.i64
|
|
// CHECK-NEXT: call void @_ZN8zeroinit2X1C1Ev
|
|
// CHECK-NEXT: call void @_ZN8zeroinit2X11fEv
|
|
X1().f();
|
|
}
|
|
|
|
template<typename>
|
|
struct X2 : X0 {
|
|
int x2;
|
|
void f();
|
|
};
|
|
|
|
template<typename>
|
|
struct X3 : X2<int> {
|
|
X3() : X2<int>() { }
|
|
int i;
|
|
};
|
|
|
|
|
|
// CHECK: define void @_ZN8zeroinit9testX0_X3Ev
|
|
void testX0_X3() {
|
|
// CHECK-NOT: call void @llvm.memset
|
|
// CHECK: call void @_ZN8zeroinit2X3IiEC1Ev
|
|
// CHECK: call void @_ZN8zeroinit2X2IiE1fEv
|
|
// CHECK-NEXT: ret void
|
|
X3<int>().f();
|
|
}
|
|
|
|
// More checks at EOF
|
|
}
|
|
|
|
namespace PR8726 {
|
|
class C;
|
|
struct S {
|
|
const C &c1;
|
|
int i;
|
|
const C &c2;
|
|
};
|
|
void f(const C& c) {
|
|
S s = {c, 42, c};
|
|
}
|
|
|
|
}
|
|
|
|
// rdar://problem/9355931
|
|
namespace test6 {
|
|
struct A { A(); A(int); };
|
|
|
|
void test() {
|
|
A arr[10][20] = { 5 };
|
|
};
|
|
// CHECK: define void @_ZN5test64testEv()
|
|
// CHECK: [[ARR:%.*]] = alloca [10 x [20 x [[A:%.*]]]],
|
|
|
|
// CHECK-NEXT: [[INNER:%.*]] = getelementptr inbounds [10 x [20 x [[A]]]]* [[ARR]], i64 0, i64 0
|
|
// CHECK-NEXT: [[T0:%.*]] = getelementptr inbounds [20 x [[A]]]* [[INNER]], i64 0, i64 0
|
|
// CHECK-NEXT: call void @_ZN5test61AC1Ei([[A]]* [[T0]], i32 5)
|
|
// CHECK-NEXT: [[BEGIN:%.*]] = getelementptr inbounds [[A]]* [[T0]], i64 1
|
|
// CHECK-NEXT: [[END:%.*]] = getelementptr inbounds [[A]]* [[T0]], i64 20
|
|
// CHECK-NEXT: br label
|
|
// CHECK: [[CUR:%.*]] = phi [[A]]* [ [[BEGIN]], {{%.*}} ], [ [[NEXT:%.*]], {{%.*}} ]
|
|
// CHECK-NEXT: call void @_ZN5test61AC1Ev([[A]]* [[CUR]])
|
|
// CHECK-NEXT: [[NEXT]] = getelementptr inbounds [[A]]* [[CUR]], i64 1
|
|
// CHECK-NEXT: [[T0:%.*]] = icmp eq [[A]]* [[NEXT]], [[END]]
|
|
// CHECK-NEXT: br i1
|
|
|
|
// CHECK: [[BEGIN:%.*]] = getelementptr inbounds [20 x [[A]]]* [[INNER]], i64 1
|
|
// CHECK-NEXT: [[END:%.*]] = getelementptr inbounds [20 x [[A]]]* [[INNER]], i64 10
|
|
// CHECK-NEXT: br label
|
|
// CHECK: [[CUR:%.*]] = phi [20 x [[A]]]* [ [[BEGIN]], {{%.*}} ], [ [[NEXT:%.*]], {{%.*}} ]
|
|
|
|
// Inner loop.
|
|
// CHECK-NEXT: [[IBEGIN:%.*]] = getelementptr inbounds [20 x [[A]]]* [[CUR]], i32 0, i32 0
|
|
// CHECK-NEXT: [[IEND:%.*]] = getelementptr inbounds [[A]]* [[IBEGIN]], i64 20
|
|
// CHECK-NEXT: br label
|
|
// CHECK: [[ICUR:%.*]] = phi [[A]]* [ [[IBEGIN]], {{%.*}} ], [ [[INEXT:%.*]], {{%.*}} ]
|
|
// CHECK-NEXT: call void @_ZN5test61AC1Ev([[A]]* [[ICUR]])
|
|
// CHECK-NEXT: [[INEXT:%.*]] = getelementptr inbounds [[A]]* [[ICUR]], i64 1
|
|
// CHECK-NEXT: [[T0:%.*]] = icmp eq [[A]]* [[INEXT]], [[IEND]]
|
|
// CHECK-NEXT: br i1 [[T0]],
|
|
|
|
// CHECK: [[NEXT]] = getelementptr inbounds [20 x [[A]]]* [[CUR]], i64 1
|
|
// CHECK-NEXT: [[T0:%.*]] = icmp eq [20 x [[A]]]* [[NEXT]], [[END]]
|
|
// CHECK-NEXT: br i1 [[T0]]
|
|
// CHECK: ret void
|
|
}
|
|
|
|
namespace PR11124 {
|
|
// Make sure C::C doesn't overwrite parts of A while it is zero-initializing B
|
|
struct A { int a; A(); A(int); };
|
|
struct B : virtual A { int b; };
|
|
struct C : B { C(); };
|
|
C::C() : A(3), B() {}
|
|
// CHECK: define void @_ZN7PR111241CC1Ev
|
|
// CHECK: call void @llvm.memset.p0i8.i64(i8* {{.*}}, i8 0, i64 12, i32 8, i1 false)
|
|
// CHECK-NEXT: call void @_ZN7PR111241BC2Ev
|
|
// Make sure C::C doesn't overwrite parts of A while it is zero-initializing B
|
|
|
|
struct B2 : virtual A { int B::*b; };
|
|
struct C2 : B2 { C2(); };
|
|
C2::C2() : A(3), B2() {}
|
|
// CHECK: define void @_ZN7PR111242C2C1Ev
|
|
// CHECK: call void @llvm.memcpy.p0i8.p0i8.i64(i8* %{{.*}}, i8* {{.*}}, i64 16, i32 8, i1 false)
|
|
// CHECK-NEXT: call void @_ZN7PR111242B2C2Ev
|
|
}
|
|
|
|
// Ensure we produce an i1 here, and don't assert.
|
|
// CHECK: define void @_Z9r170806_bv(
|
|
// CHECK: call void @_Z9r170806_ab(i1 zeroext false)
|
|
void r170806_a(bool b = bool());
|
|
void r170806_b() { r170806_a(); }
|
|
|
|
// CHECK: define linkonce_odr void @_ZN8zeroinit2X3IiEC2Ev(%"struct.zeroinit::X3"* %this) unnamed_addr
|
|
// CHECK: call void @llvm.memset.p0i8.i64
|
|
// CHECK-NEXT: call void @_ZN8zeroinit2X2IiEC2Ev
|
|
// CHECK-NEXT: ret void
|