| // RUN: %clang_cc1 %s -emit-llvm -o - -triple=x86_64-apple-darwin10 | FileCheck %s |
| // RUN: %clang_cc1 %s -emit-llvm -o - -triple=x86_64-apple-darwin10 -O3 | FileCheck --check-prefix=CHECK-O3 %s |
| struct A { int a; int b; }; |
| struct B { int b; }; |
| struct C : B, A { }; |
| |
| // Zero init. |
| namespace ZeroInit { |
| // CHECK: @_ZN8ZeroInit1aE = global i64 -1 |
| int A::* a; |
| |
| // CHECK: @_ZN8ZeroInit2aaE = global [2 x i64] [i64 -1, i64 -1] |
| int A::* aa[2]; |
| |
| // CHECK: @_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: @_ZN8ZeroInit1bE = global i64 -1, |
| int A::* b = 0; |
| |
| // CHECK: @_ZN8ZeroInit2saE = internal global %struct.anon { i64 -1 } |
| struct { |
| int A::*a; |
| } sa; |
| void test_sa() { (void) sa; } // force emission |
| |
| // CHECK: @_ZN8ZeroInit3ssaE = internal |
| // CHECK: [2 x i64] [i64 -1, i64 -1] |
| struct { |
| int A::*aa[2]; |
| } ssa[2]; |
| void test_ssa() { (void) ssa; } |
| |
| // CHECK: @_ZN8ZeroInit2ssE = internal global %1 { %struct.anon { 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: @_ZN8ZeroInit1cE = global %"struct.ZeroInit::C" { [16 x i8] c"\FF\FF\FF\FF\FF\FF\FF\FF\00\00\00\00\00\00\00\00", [176 x i8] c"\FF\FF\FF\FF\FF\FF\FF\FF\00\00\00\00\00\00\00\00\FF\FF\FF\FF\FF\FF\FF\FF\00\00\00\00\00\00\00\00\FF\FF\FF\FF\FF\FF\FF\FF\00\00\00\00\00\00\00\00\FF\FF\FF\FF\FF\FF\FF\FF\00\00\00\00\00\00\00\00\FF\FF\FF\FF\FF\FF\FF\FF\00\00\00\00\00\00\00\00\FF\FF\FF\FF\FF\FF\FF\FF\00\00\00\00\00\00\00\00\FF\FF\FF\FF\FF\FF\FF\FF\00\00\00\00\00\00\00\00\FF\FF\FF\FF\FF\FF\FF\FF\00\00\00\00\00\00\00\00\FF\FF\FF\FF\FF\FF\FF\FF\00\00\00\00\00\00\00\00\FF\FF\FF\FF\FF\FF\FF\FF\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\FF\FF\FF\FF\FF\FF\FF\FF", i32 0, [4 x i8] zeroinitializer } |
| C c; |
| } |
| |
| // PR5674 |
| namespace PR5674 { |
| // CHECK: @_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 unnamed_addr void @_ZN9ValueInit1AC2Ev |
| // 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() nounwind readnone |
| bool check() { |
| // CHECK-O3: ret i1 true |
| return A().a.data == 0; |
| } |
| |
| // CHECK-O3: define zeroext i1 @_ZN6PR71396check2Ev() nounwind readnone |
| bool check2() { |
| // CHECK-O3: ret i1 true |
| return ptr_to_member_type() == 0; |
| } |
| |
| } |
| |
| namespace VirtualBases { |
| |
| struct A { |
| char c; |
| int A::*i; |
| }; |
| |
| // FIXME: A::i should be initialized to -1 here. |
| struct B : virtual A { }; |
| B b; |
| |
| // FIXME: A::i should be initialized to -1 here. |
| struct C : virtual A { int A::*i; }; |
| C c; |
| |
| // FIXME: C::A::i should be initialized to -1 here. |
| 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) { |
| } |
| } |
| |
| } |
| |