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// RUN: %clang_cc1 -triple x86_64-apple-darwin10 -emit-llvm -o - %s | FileCheck %s
// rdar://8818236
namespace rdar8818236 {
struct S {
char c2;
union {
char c;
int i;
};
};
// CHECK: @_ZN11rdar88182363fooE = global i64 4
char S::*foo = &S::c;
}
struct A {
union {
int a;
void* b;
};
A() : a(0) { }
};
A a;
namespace PR7021 {
struct X
{
union { long l; };
};
// CHECK: define void @_ZN6PR70211fENS_1XES0_
void f(X x, X z) {
X x1;
// CHECK: store i64 1, i64
x1.l = 1;
// CHECK: call void @llvm.memcpy.p0i8.p0i8.i64
X x2(x1);
X x3;
// CHECK: call void @llvm.memcpy.p0i8.p0i8.i64
x3 = x1;
// CHECK: ret void
}
}
namespace test2 {
struct A {
struct {
union {
int b;
};
};
A();
};
A::A() : b(10) { }
// CHECK: define void @_ZN5test21AC2Ev(
// CHECK-NOT: }
// CHECK: store i32 10
// CHECK: }
}
namespace PR10512 {
struct A {
A();
A(int);
A(long);
struct {
struct {int x;};
struct {int y;};
};
};
// CHECK: define void @_ZN7PR105121AC2Ev
// CHECK: [[THISADDR:%[a-zA-z0-9.]+]] = alloca [[A:%"struct[A-Za-z0-9:.]+"]]
// CHECK-NEXT: store [[A]]* [[THIS:%[a-zA-z0-9.]+]], [[A]]** [[THISADDR]]
// CHECK-NEXT: [[THIS1:%[a-zA-z0-9.]+]] = load [[A]]** [[THISADDR]]
// CHECK-NEXT: ret void
A::A() {}
// CHECK: define void @_ZN7PR105121AC2Ei
// CHECK: [[THISADDR:%[a-zA-z0-9.]+]] = alloca [[A:%"struct[A-Za-z0-9:.]+"]]
// CHECK-NEXT: [[XADDR:%[a-zA-z0-9.]+]] = alloca i32
// CHECK-NEXT: store [[A]]* [[THIS:%[a-zA-z0-9.]+]], [[A]]** [[THISADDR]]
// CHECK-NEXT: store i32 [[X:%[a-zA-z0-9.]+]], i32* [[XADDR]]
// CHECK-NEXT: [[THIS1:%[a-zA-z0-9.]+]] = load [[A]]** [[THISADDR]]
// CHECK-NEXT: {{getelementptr inbounds.*i32 0, i32 0}}
// CHECK-NEXT: {{getelementptr inbounds.*i32 0, i32 0}}
// CHECK-NEXT: {{getelementptr inbounds.*i32 0, i32 0}}
// CHECK-NEXT: [[TMP:%[a-zA-z0-9.]+]] = load i32* [[XADDR]]
// CHECK-NEXT: store i32 [[TMP]]
// CHECK-NEXT: ret void
A::A(int x) : x(x) { }
// CHECK: define void @_ZN7PR105121AC2El
// CHECK: [[THISADDR:%[a-zA-z0-9.]+]] = alloca [[A:%"struct[A-Za-z0-9:.]+"]]
// CHECK-NEXT: [[XADDR:%[a-zA-z0-9.]+]] = alloca i64
// CHECK-NEXT: store [[A]]* [[THIS:%[a-zA-z0-9.]+]], [[A]]** [[THISADDR]]
// CHECK-NEXT: store i64 [[X:%[a-zA-z0-9.]+]], i64* [[XADDR]]
// CHECK-NEXT: [[THIS1:%[a-zA-z0-9.]+]] = load [[A]]** [[THISADDR]]
// CHECK-NEXT: {{getelementptr inbounds.*i32 0, i32 0}}
// CHECK-NEXT: {{getelementptr inbounds.*i32 0, i32 1}}
// CHECK-NEXT: {{getelementptr inbounds.*i32 0, i32 0}}
// CHECK-NEXT: [[TMP:%[a-zA-z0-9.]+]] = load i64* [[XADDR]]
// CHECK-NEXT: [[CONV:%[a-zA-z0-9.]+]] = trunc i64 [[TMP]] to i32
// CHECK-NEXT: store i32 [[CONV]]
// CHECK-NEXT: ret void
A::A(long y) : y(y) { }
}
namespace test3 {
struct A {
union {
mutable char fibers[100];
struct {
void (*callback)(void*);
void *callback_value;
};
};
A();
};
A::A() : callback(0), callback_value(0) {}
// CHECK: define void @_ZN5test31AC2Ev(
// CHECK: [[THIS:%.*]] = load
// CHECK-NEXT: [[UNION:%.*]] = getelementptr inbounds {{.*}} [[THIS]], i32 0, i32 0
// CHECK-NEXT: [[STRUCT:%.*]] = bitcast {{.*}}* [[UNION]] to
// CHECK-NEXT: [[CALLBACK:%.*]] = getelementptr inbounds {{.*}} [[STRUCT]], i32 0, i32 0
// CHECK: store
// CHECK-NEXT: [[UNION:%.*]] = getelementptr inbounds {{.*}} [[THIS]], i32 0, i32 0
// CHECK-NEXT: [[STRUCT:%.*]] = bitcast {{.*}}* [[UNION]] to
// CHECK-NEXT: [[CVALUE:%.*]] = getelementptr inbounds {{.*}} [[STRUCT]], i32 0, i32 1
// CHECK-NEXT: store i8* null, i8** [[CVALUE]]
}
struct S {
// CHECK: store i32 42
// CHECK: store i32 55
S() : x(42), y(55) {}
union {
struct {
int x;
union { int y; };
};
};
} s;
//PR8760
template <typename T> struct Foo {
Foo() : ptr(__nullptr) {}
union {
T *ptr;
};
};
Foo<int> f;
namespace PR9683 {
struct QueueEntry {
union {
struct {
void* mPtr;
union {
unsigned mSubmissionTag;
};
};
unsigned mValue;
};
QueueEntry() {}
};
QueueEntry QE;
}
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