minix/external/bsd/llvm/dist/clang/test/CodeGenCXX/copy-constructor-synthesis.cpp
Lionel Sambuc f4a2713ac8 Importing netbsd clang -- pristine
Change-Id: Ia40e9ffdf29b5dab2f122f673ff6802a58bc690f
2014-07-28 17:05:57 +02:00

197 lines
4.8 KiB
C++

// RUN: %clang_cc1 -triple x86_64-apple-darwin -emit-llvm -o - %s | FileCheck %s
extern "C" int printf(...);
int init = 100;
struct M {
int iM;
M() : iM(init++) {}
};
struct N {
int iN;
N() : iN(200) {}
N(N const & arg){this->iN = arg.iN; }
};
struct P {
int iP;
P() : iP(init++) {}
};
// CHECK-LABEL: define linkonce_odr void @_ZN1XC1ERKS_(%struct.X* %this, %struct.X*) unnamed_addr
struct X : M, N, P { // ...
X() : f1(1.0), d1(2.0), i1(3), name("HELLO"), bf1(0xff), bf2(0xabcd),
au_i1(1234), au1_4("MASKED") {}
P p0;
void pr() {
printf("iM = %d iN = %d, m1.iM = %d\n", iM, iN, m1.iM);
printf("im = %d p0.iP = %d, p1.iP = %d\n", iP, p0.iP, p1.iP);
printf("f1 = %f d1 = %f i1 = %d name(%s) \n", f1, d1, i1, name);
printf("bf1 = %x bf2 = %x\n", bf1, bf2);
printf("au_i2 = %d\n", au_i2);
printf("au1_1 = %s\n", au1_1);
}
M m1;
P p1;
float f1;
double d1;
int i1;
const char *name;
unsigned bf1 : 8;
unsigned bf2 : 16;
int arr[2];
_Complex float complex;
union {
int au_i1;
int au_i2;
};
union {
const char * au1_1;
float au1_2;
int au1_3;
const char * au1_4;
};
};
static int ix = 1;
// class with user-defined copy constructor.
struct S {
S() : iS(ix++) { }
S(const S& arg) { *this = arg; }
int iS;
};
// class with trivial copy constructor.
struct I {
I() : iI(ix++) { }
int iI;
};
struct XM {
XM() { }
double dXM;
S ARR_S[3][4][2];
void pr() {
for (unsigned i = 0; i < 3; i++)
for (unsigned j = 0; j < 4; j++)
for (unsigned k = 0; k < 2; k++)
printf("ARR_S[%d][%d][%d] = %d\n", i,j,k, ARR_S[i][j][k].iS);
for (unsigned i = 0; i < 3; i++)
for (unsigned k = 0; k < 2; k++)
printf("ARR_I[%d][%d] = %d\n", i,k, ARR_I[i][k].iI);
}
I ARR_I[3][2];
};
int main() {
X a;
X b(a);
b.pr();
X x;
X c(x);
c.pr();
XM m0;
XM m1 = m0;
m1.pr();
}
struct A {
};
struct B : A {
A &a;
};
void f(const B &b1) {
B b2(b1);
}
// PR6628
namespace PR6628 {
struct T {
T();
~T();
double d;
};
struct A {
A(const A &other, const T &t = T(), const T& t2 = T());
};
struct B : A {
A a1;
A a2;
A a[10];
};
// Force the copy constructor to be synthesized.
void f(B b1) {
B b2 = b1;
}
// CHECK: define linkonce_odr [[A:%.*]]* @_ZN12rdar138169401AaSERKS0_(
// CHECK: [[THIS:%.*]] = load [[A]]**
// CHECK-NEXT: [[T0:%.*]] = getelementptr inbounds [[A]]* [[THIS]], i32 0, i32 1
// CHECK-NEXT: [[T1:%.*]] = bitcast [2 x i8]* [[T0]] to i16*
// CHECK-NEXT: [[OTHER:%.*]] = load [[A]]**
// CHECK-NEXT: [[T2:%.*]] = getelementptr inbounds [[A]]* [[OTHER]], i32 0, i32 1
// CHECK-NEXT: [[T3:%.*]] = bitcast [2 x i8]* [[T2]] to i16*
// CHECK-NEXT: [[T4:%.*]] = bitcast i16* [[T1]] to i8*
// CHECK-NEXT: [[T5:%.*]] = bitcast i16* [[T3]] to i8*
// CHECK-NEXT: call void @llvm.memcpy.p0i8.p0i8.i64(i8* [[T4]], i8* [[T5]], i64 8, i32 8, i1 false)
// CHECK-NEXT: ret [[A]]* [[THIS]]
// CHECK-LABEL: define linkonce_odr void @_ZN12rdar138169401AC2ERKS0_(
// CHECK: [[THIS:%.*]] = load [[A]]**
// CHECK-NEXT: [[T0:%.*]] = bitcast [[A]]* [[THIS]] to i8***
// CHECK-NEXT: store i8** getelementptr inbounds ([4 x i8*]* @_ZTVN12rdar138169401AE, i64 0, i64 2), i8*** [[T0]]
// CHECK-NEXT: [[T0:%.*]] = getelementptr inbounds [[A]]* [[THIS]], i32 0, i32 1
// CHECK-NEXT: [[T1:%.*]] = bitcast [2 x i8]* [[T0]] to i16*
// CHECK-NEXT: [[OTHER:%.*]] = load [[A]]**
// CHECK-NEXT: [[T2:%.*]] = getelementptr inbounds [[A]]* [[OTHER]], i32 0, i32 1
// CHECK-NEXT: [[T3:%.*]] = bitcast [2 x i8]* [[T2]] to i16*
// CHECK-NEXT: [[T4:%.*]] = bitcast i16* [[T1]] to i8*
// CHECK-NEXT: [[T5:%.*]] = bitcast i16* [[T3]] to i8*
// CHECK-NEXT: call void @llvm.memcpy.p0i8.p0i8.i64(i8* [[T4]], i8* [[T5]], i64 8, i32 8, i1 false)
// CHECK-NEXT: ret void
// CHECK-LABEL: define linkonce_odr void @_ZN6PR66281BC2ERKS0_(%"struct.PR6628::B"* %this, %"struct.PR6628::B"*) unnamed_addr
// CHECK: call void @_ZN6PR66281TC1Ev
// CHECK: call void @_ZN6PR66281TC1Ev
// CHECK: call void @_ZN6PR66281AC2ERKS0_RKNS_1TES5_
// CHECK: call void @_ZN6PR66281TD1Ev
// CHECK: call void @_ZN6PR66281TD1Ev
// CHECK: call void @_ZN6PR66281TC1Ev
// CHECK: call void @_ZN6PR66281TC1Ev
// CHECK: call void @_ZN6PR66281AC1ERKS0_RKNS_1TES5_
// CHECK: call void @_ZN6PR66281TD1Ev
// CHECK: call void @_ZN6PR66281TD1Ev
// CHECK: call void @_ZN6PR66281TC1Ev
// CHECK: call void @_ZN6PR66281TC1Ev
// CHECK: call void @_ZN6PR66281AC1ERKS0_RKNS_1TES5_
// CHECK: call void @_ZN6PR66281TD1Ev
// CHECK: call void @_ZN6PR66281TD1Ev
}
// rdar://13816940
// Test above because things get weirdly re-ordered.
namespace rdar13816940 {
struct A {
virtual ~A();
unsigned short a : 1;
unsigned short : 15;
unsigned other;
};
void test(A &a) {
A x = a; // force copy constructor into existence
x = a; // also force the copy assignment operator
}
}