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// RUN: %clang_cc1 %s -emit-llvm -o %t.ll -triple=x86_64-apple-darwin10
// RUN: FileCheck %s < %t.ll
// RUN: FileCheck -check-prefix=CHECK-GLOBAL %s < %t.ll
// RUN: %clang_cc1 %s -emit-llvm -o %t-opt.ll -triple=x86_64-apple-darwin10 -O3
// RUN: FileCheck --check-prefix=CHECK-O3 %s < %t-opt.ll
struct A { int a; int b; };
struct B { int b; };
struct C : B, A { };
// Zero init.
namespace ZeroInit {
// CHECK-GLOBAL: @_ZN8ZeroInit1aE = global i64 -1
int A::* a;
// CHECK-GLOBAL: @_ZN8ZeroInit2aaE = global [2 x i64] [i64 -1, i64 -1]
int A::* aa[2];
// CHECK-GLOBAL: @_ZN8ZeroInit3aaaE = global [2 x [2 x i64]] {{\[}}[2 x i64] [i64 -1, i64 -1], [2 x i64] [i64 -1, i64 -1]]
int A::* aaa[2][2];
// CHECK-GLOBAL: @_ZN8ZeroInit1bE = global i64 -1,
int A::* b = 0;
// CHECK-GLOBAL: @_ZN8ZeroInit2saE = internal global %struct.anon { i64 -1 }
struct {
int A::*a;
} sa;
void test_sa() { (void) sa; } // force emission
// CHECK-GLOBAL: @_ZN8ZeroInit3ssaE = internal
// CHECK-GLOBAL: [2 x i64] [i64 -1, i64 -1]
struct {
int A::*aa[2];
} ssa[2];
void test_ssa() { (void) ssa; }
// CHECK-GLOBAL: @_ZN8ZeroInit2ssE = internal global %struct.anon.1 { %struct.anon.2 { i64 -1 } }
struct {
struct {
int A::*pa;
} s;
} ss;
void test_ss() { (void) ss; }
struct A {
int A::*a;
int b;
};
struct B {
A a[10];
char c;
int B::*b;
};
struct C : A, B { int j; };
// CHECK-GLOBAL: @_ZN8ZeroInit1cE = global {{%.*}} { %"struct.ZeroInit::A" { i64 -1, i32 0 }, %"struct.ZeroInit::B" { [10 x %"struct.ZeroInit::A"] [%"struct.ZeroInit::A" { i64 -1, i32 0 }, %"struct.ZeroInit::A" { i64 -1, i32 0 }, %"struct.ZeroInit::A" { i64 -1, i32 0 }, %"struct.ZeroInit::A" { i64 -1, i32 0 }, %"struct.ZeroInit::A" { i64 -1, i32 0 }, %"struct.ZeroInit::A" { i64 -1, i32 0 }, %"struct.ZeroInit::A" { i64 -1, i32 0 }, %"struct.ZeroInit::A" { i64 -1, i32 0 }, %"struct.ZeroInit::A" { i64 -1, i32 0 }, %"struct.ZeroInit::A" { i64 -1, i32 0 }], i8 0, i64 -1 }, i32 0 }, align 8
C c;
}
// PR5674
namespace PR5674 {
// CHECK-GLOBAL: @_ZN6PR56742pbE = global i64 4
int A::*pb = &A::b;
}
// Casts.
namespace Casts {
int A::*pa;
int C::*pc;
void f() {
// CHECK: store i64 -1, i64* @_ZN5Casts2paE
pa = 0;
// CHECK-NEXT: [[TMP:%.*]] = load i64* @_ZN5Casts2paE, align 8
// CHECK-NEXT: [[ADJ:%.*]] = add nsw i64 [[TMP]], 4
// CHECK-NEXT: [[ISNULL:%.*]] = icmp eq i64 [[TMP]], -1
// CHECK-NEXT: [[RES:%.*]] = select i1 [[ISNULL]], i64 [[TMP]], i64 [[ADJ]]
// CHECK-NEXT: store i64 [[RES]], i64* @_ZN5Casts2pcE
pc = pa;
// CHECK-NEXT: [[TMP:%.*]] = load i64* @_ZN5Casts2pcE, align 8
// CHECK-NEXT: [[ADJ:%.*]] = sub nsw i64 [[TMP]], 4
// CHECK-NEXT: [[ISNULL:%.*]] = icmp eq i64 [[TMP]], -1
// CHECK-NEXT: [[RES:%.*]] = select i1 [[ISNULL]], i64 [[TMP]], i64 [[ADJ]]
// CHECK-NEXT: store i64 [[RES]], i64* @_ZN5Casts2paE
pa = static_cast<int A::*>(pc);
}
}
// Comparisons
namespace Comparisons {
void f() {
int A::*a;
// CHECK: icmp ne i64 {{.*}}, -1
if (a) { }
// CHECK: icmp ne i64 {{.*}}, -1
if (a != 0) { }
// CHECK: icmp ne i64 -1, {{.*}}
if (0 != a) { }
// CHECK: icmp eq i64 {{.*}}, -1
if (a == 0) { }
// CHECK: icmp eq i64 -1, {{.*}}
if (0 == a) { }
}
}
namespace ValueInit {
struct A {
int A::*a;
char c;
A();
};
// CHECK: define void @_ZN9ValueInit1AC2Ev(%"struct.ValueInit::A"* %this) unnamed_addr
// CHECK: store i64 -1, i64*
// CHECK: ret void
A::A() : a() {}
}
namespace PR7139 {
struct pair {
int first;
int second;
};
typedef int pair::*ptr_to_member_type;
struct ptr_to_member_struct {
ptr_to_member_type data;
int i;
};
struct A {
ptr_to_member_struct a;
A() : a() {}
};
// CHECK-O3: define zeroext i1 @_ZN6PR71395checkEv() [[NUW:#[0-9]+]]
bool check() {
// CHECK-O3: ret i1 true
return A().a.data == 0;
}
// CHECK-O3: define zeroext i1 @_ZN6PR71396check2Ev() [[NUW]]
bool check2() {
// CHECK-O3: ret i1 true
return ptr_to_member_type() == 0;
}
}
namespace VirtualBases {
struct A {
char c;
int A::*i;
};
// CHECK-GLOBAL: @_ZN12VirtualBases1bE = global %"struct.VirtualBases::B" { i32 (...)** null, %"struct.VirtualBases::A" { i8 0, i64 -1 } }, align 8
struct B : virtual A { };
B b;
// CHECK-GLOBAL: @_ZN12VirtualBases1cE = global %"struct.VirtualBases::C" { i32 (...)** null, i64 -1, %"struct.VirtualBases::A" { i8 0, i64 -1 } }, align 8
struct C : virtual A { int A::*i; };
C c;
// CHECK-GLOBAL: @_ZN12VirtualBases1dE = global %"struct.VirtualBases::D" { %"struct.VirtualBases::C.base" { i32 (...)** null, i64 -1 }, i64 -1, %"struct.VirtualBases::A" { i8 0, i64 -1 } }, align 8
struct D : C { int A::*i; };
D d;
}
namespace Test1 {
// Don't crash when A contains a bit-field.
struct A {
int A::* a;
int b : 10;
};
A a;
}
namespace BoolPtrToMember {
struct X {
bool member;
};
// CHECK: define i8* @_ZN15BoolPtrToMember1fERNS_1XEMS0_b
bool &f(X &x, bool X::*member) {
// CHECK: {{bitcast.* to i8\*}}
// CHECK-NEXT: getelementptr inbounds i8*
// CHECK-NEXT: ret i8*
return x.*member;
}
}
namespace PR8507 {
struct S;
void f(S* p, double S::*pm) {
if (0 < p->*pm) {
}
}
}
namespace test4 {
struct A { int A_i; };
struct B : virtual A { int A::*B_p; };
struct C : virtual B { int *C_p; };
struct D : C { int *D_p; };
// CHECK-GLOBAL: @_ZN5test41dE = global %"struct.test4::D" { %"struct.test4::C.base" zeroinitializer, i32* null, %"struct.test4::B.base" { i32 (...)** null, i64 -1 }, %"struct.test4::A" zeroinitializer }, align 8
D d;
}
namespace PR11487 {
union U
{
int U::* mptr;
char x[16];
} x;
// CHECK-GLOBAL: @_ZN7PR114871xE = global %"union.PR11487::U" { i64 -1, [8 x i8] zeroinitializer }, align 8
}
namespace PR13097 {
struct X { int x; X(const X&); };
struct A {
int qq;
X x;
};
A f();
X g() { return f().*&A::x; }
// CHECK: define void @_ZN7PR130971gEv
// CHECK: call void @_ZN7PR130971fEv
// CHECK-NOT: memcpy
// CHECK: call void @_ZN7PR130971XC1ERKS0_
}
// CHECK-O3: attributes [[NUW]] = { nounwind readnone{{.*}} }
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