| // RUN: %clang_cc1 -fno-rtti -emit-llvm %s -o - -cxx-abi microsoft -triple=i386-pc-win32 | FileCheck %s |
| // FIXME: Test x86_64 member pointers when codegen no longer asserts on records |
| // with virtual bases. |
| |
| struct B1 { |
| void foo(); |
| int b; |
| }; |
| struct B2 { |
| int b2; |
| void foo(); |
| }; |
| struct Single : B1 { |
| void foo(); |
| }; |
| struct Multiple : B1, B2 { |
| int m; |
| void foo(); |
| }; |
| struct Virtual : virtual B1 { |
| int v; |
| void foo(); |
| }; |
| |
| struct POD { |
| int a; |
| int b; |
| }; |
| |
| struct Polymorphic { |
| virtual void myVirtual(); |
| int a; |
| int b; |
| }; |
| |
| // This class uses the virtual inheritance model, yet its vbptr offset is not 0. |
| // We still use zero for the null field offset, despite it being a valid field |
| // offset. |
| struct NonZeroVBPtr : POD, Virtual { |
| int n; |
| void foo(); |
| }; |
| |
| struct Unspecified; |
| |
| // Check that we can lower the LLVM types and get the null initializers right. |
| int Single ::*s_d_memptr; |
| int Polymorphic::*p_d_memptr; |
| int Multiple ::*m_d_memptr; |
| int Virtual ::*v_d_memptr; |
| int NonZeroVBPtr::*n_d_memptr; |
| int Unspecified::*u_d_memptr; |
| // CHECK: @"\01?s_d_memptr@@3PQSingle@@HQ1@" = global i32 -1, align 4 |
| // CHECK: @"\01?p_d_memptr@@3PQPolymorphic@@HQ1@" = global i32 0, align 4 |
| // CHECK: @"\01?m_d_memptr@@3PQMultiple@@HQ1@" = global i32 -1, align 4 |
| // CHECK: @"\01?v_d_memptr@@3PQVirtual@@HQ1@" = global { i32, i32 } |
| // CHECK: { i32 0, i32 -1 }, align 4 |
| // CHECK: @"\01?n_d_memptr@@3PQNonZeroVBPtr@@HQ1@" = global { i32, i32 } |
| // CHECK: { i32 0, i32 -1 }, align 4 |
| // CHECK: @"\01?u_d_memptr@@3PQUnspecified@@HQ1@" = global { i32, i32, i32 } |
| // CHECK: { i32 0, i32 0, i32 -1 }, align 4 |
| |
| void (Single ::*s_f_memptr)(); |
| void (Multiple::*m_f_memptr)(); |
| void (Virtual ::*v_f_memptr)(); |
| // CHECK: @"\01?s_f_memptr@@3P8Single@@AEXXZQ1@" = global i8* null, align 4 |
| // CHECK: @"\01?m_f_memptr@@3P8Multiple@@AEXXZQ1@" = global { i8*, i32 } zeroinitializer, align 4 |
| // CHECK: @"\01?v_f_memptr@@3P8Virtual@@AEXXZQ1@" = global { i8*, i32, i32 } zeroinitializer, align 4 |
| |
| // We can define Unspecified after locking in the inheritance model. |
| struct Unspecified : Multiple, Virtual { |
| void foo(); |
| int u; |
| }; |
| |
| // Test memptr emission in a constant expression. |
| namespace Const { |
| void (Single ::*s_f_mp)() = &Single::foo; |
| void (Multiple ::*m_f_mp)() = &B2::foo; |
| void (Virtual ::*v_f_mp)() = &Virtual::foo; |
| void (Unspecified::*u_f_mp)() = &Unspecified::foo; |
| // CHECK: @"\01?s_f_mp@Const@@3P8Single@@AEXXZQ2@" = |
| // CHECK: global i8* bitcast ({{.*}} @"\01?foo@Single@@QAEXXZ" to i8*), align 4 |
| // CHECK: @"\01?m_f_mp@Const@@3P8Multiple@@AEXXZQ2@" = |
| // CHECK: global { i8*, i32 } { i8* bitcast ({{.*}} @"\01?foo@B2@@QAEXXZ" to i8*), i32 4 }, align 4 |
| // CHECK: @"\01?v_f_mp@Const@@3P8Virtual@@AEXXZQ2@" = |
| // CHECK: global { i8*, i32, i32 } { i8* bitcast ({{.*}} @"\01?foo@Virtual@@QAEXXZ" to i8*), i32 0, i32 0 }, align 4 |
| // CHECK: @"\01?u_f_mp@Const@@3P8Unspecified@@AEXXZQ2@" = |
| // CHECK: global { i8*, i32, i32, i32 } { i8* bitcast ({{.*}} @"\01?foo@Unspecified@@QAEXXZ" to i8*), i32 0, i32 12, i32 0 }, align 4 |
| } |
| |
| namespace CastParam { |
| // This exercises ConstExprEmitter instead of ValueDecl::evaluateValue. The |
| // extra reinterpret_cast for the parameter type requires more careful folding. |
| // FIXME: Or does it? If reinterpret_casts are no-ops, we should be able to |
| // strip them in evaluateValue() and just proceed as normal with an APValue. |
| struct A { |
| int a; |
| void foo(A *p); |
| }; |
| struct B { int b; }; |
| struct C : B, A { int c; }; |
| |
| void (A::*ptr1)(void *) = (void (A::*)(void *)) &A::foo; |
| // CHECK: @"\01?ptr1@CastParam@@3P8A@1@AEXPAX@ZQ21@" = |
| // CHECK: global i8* bitcast (void ({{.*}})* @"\01?foo@A@CastParam@@QAEXPAU12@@Z" to i8*), align 4 |
| |
| // Try a reinterpret_cast followed by a memptr conversion. |
| void (C::*ptr2)(void *) = (void (C::*)(void *)) (void (A::*)(void *)) &A::foo; |
| // CHECK: @"\01?ptr2@CastParam@@3P8C@1@AEXPAX@ZQ21@" = |
| // CHECK: global { i8*, i32 } { i8* bitcast (void ({{.*}})* @"\01?foo@A@CastParam@@QAEXPAU12@@Z" to i8*), i32 4 }, align 4 |
| |
| void (C::*ptr3)(void *) = (void (C::*)(void *)) (void (A::*)(void *)) (void (A::*)(A *)) 0; |
| // CHECK: @"\01?ptr3@CastParam@@3P8C@1@AEXPAX@ZQ21@" = |
| // CHECK: global { i8*, i32 } zeroinitializer, align 4 |
| |
| struct D : C { |
| virtual void isPolymorphic(); |
| int d; |
| }; |
| |
| // Try a cast that changes the inheritance model. Null for D is 0, but null for |
| // C is -1. We need the cast to long in order to hit the non-APValue path. |
| int C::*ptr4 = (int C::*) (int D::*) (long D::*) 0; |
| // CHECK: @"\01?ptr4@CastParam@@3PQC@1@HQ21@" = global i32 -1, align 4 |
| |
| // MSVC rejects this but we accept it. |
| int C::*ptr5 = (int C::*) (long D::*) 0; |
| // CHECK: @"\01?ptr5@CastParam@@3PQC@1@HQ21@" = global i32 -1, align 4 |
| } |
| |
| struct UnspecWithVBPtr; |
| int UnspecWithVBPtr::*forceUnspecWithVBPtr; |
| struct UnspecWithVBPtr : B1, virtual B2 { |
| int u; |
| void foo(); |
| }; |
| |
| // Test emitting non-virtual member pointers in a non-constexpr setting. |
| void EmitNonVirtualMemberPointers() { |
| void (Single ::*s_f_memptr)() = &Single::foo; |
| void (Multiple ::*m_f_memptr)() = &Multiple::foo; |
| void (Virtual ::*v_f_memptr)() = &Virtual::foo; |
| void (Unspecified::*u_f_memptr)() = &Unspecified::foo; |
| void (UnspecWithVBPtr::*u2_f_memptr)() = &UnspecWithVBPtr::foo; |
| // CHECK: define void @"\01?EmitNonVirtualMemberPointers@@YAXXZ"() {{.*}} { |
| // CHECK: alloca i8*, align 4 |
| // CHECK: alloca { i8*, i32 }, align 4 |
| // CHECK: alloca { i8*, i32, i32 }, align 4 |
| // CHECK: alloca { i8*, i32, i32, i32 }, align 4 |
| // CHECK: store i8* bitcast (void (%{{.*}}*)* @"\01?foo@Single@@QAEXXZ" to i8*), i8** %{{.*}}, align 4 |
| // CHECK: store { i8*, i32 } |
| // CHECK: { i8* bitcast (void (%{{.*}}*)* @"\01?foo@Multiple@@QAEXXZ" to i8*), i32 0 }, |
| // CHECK: { i8*, i32 }* %{{.*}}, align 4 |
| // CHECK: store { i8*, i32, i32 } |
| // CHECK: { i8* bitcast (void (%{{.*}}*)* @"\01?foo@Virtual@@QAEXXZ" to i8*), i32 0, i32 0 }, |
| // CHECK: { i8*, i32, i32 }* %{{.*}}, align 4 |
| // CHECK: store { i8*, i32, i32, i32 } |
| // CHECK: { i8* bitcast (void (%{{.*}}*)* @"\01?foo@Unspecified@@QAEXXZ" to i8*), i32 0, i32 12, i32 0 }, |
| // CHECK: { i8*, i32, i32, i32 }* %{{.*}}, align 4 |
| // CHECK: store { i8*, i32, i32, i32 } |
| // CHECK: { i8* bitcast (void (%{{.*}}*)* @"\01?foo@UnspecWithVBPtr@@QAEXXZ" to i8*), |
| // CHECK: i32 0, i32 4, i32 0 }, |
| // CHECK: { i8*, i32, i32, i32 }* %{{.*}}, align 4 |
| // CHECK: ret void |
| // CHECK: } |
| } |
| |
| void podMemPtrs() { |
| int POD::*memptr; |
| memptr = &POD::a; |
| memptr = &POD::b; |
| if (memptr) |
| memptr = 0; |
| // Check that member pointers use the right offsets and that null is -1. |
| // CHECK: define void @"\01?podMemPtrs@@YAXXZ"() {{.*}} { |
| // CHECK: %[[memptr:.*]] = alloca i32, align 4 |
| // CHECK-NEXT: store i32 0, i32* %[[memptr]], align 4 |
| // CHECK-NEXT: store i32 4, i32* %[[memptr]], align 4 |
| // CHECK-NEXT: %[[memptr_val:.*]] = load i32* %[[memptr]], align 4 |
| // CHECK-NEXT: %{{.*}} = icmp ne i32 %[[memptr_val]], -1 |
| // CHECK-NEXT: br i1 %{{.*}}, label %{{.*}}, label %{{.*}} |
| // CHECK: store i32 -1, i32* %[[memptr]], align 4 |
| // CHECK: ret void |
| // CHECK: } |
| } |
| |
| void polymorphicMemPtrs() { |
| int Polymorphic::*memptr; |
| memptr = &Polymorphic::a; |
| memptr = &Polymorphic::b; |
| if (memptr) |
| memptr = 0; |
| // Member pointers for polymorphic classes include the vtable slot in their |
| // offset and use 0 to represent null. |
| // CHECK: define void @"\01?polymorphicMemPtrs@@YAXXZ"() {{.*}} { |
| // CHECK: %[[memptr:.*]] = alloca i32, align 4 |
| // CHECK-NEXT: store i32 4, i32* %[[memptr]], align 4 |
| // CHECK-NEXT: store i32 8, i32* %[[memptr]], align 4 |
| // CHECK-NEXT: %[[memptr_val:.*]] = load i32* %[[memptr]], align 4 |
| // CHECK-NEXT: %{{.*}} = icmp ne i32 %[[memptr_val]], 0 |
| // CHECK-NEXT: br i1 %{{.*}}, label %{{.*}}, label %{{.*}} |
| // CHECK: store i32 0, i32* %[[memptr]], align 4 |
| // CHECK: ret void |
| // CHECK: } |
| } |
| |
| bool nullTestDataUnspecified(int Unspecified::*mp) { |
| return mp; |
| // CHECK: define zeroext i1 @"\01?nullTestDataUnspecified@@YA_NPQUnspecified@@H@Z"{{.*}} { |
| // CHECK: %{{.*}} = load { i32, i32, i32 }* %{{.*}}, align 4 |
| // CHECK: store { i32, i32, i32 } {{.*}} align 4 |
| // CHECK: %[[mp:.*]] = load { i32, i32, i32 }* %{{.*}}, align 4 |
| // CHECK: %[[mp0:.*]] = extractvalue { i32, i32, i32 } %[[mp]], 0 |
| // CHECK: %[[cmp0:.*]] = icmp ne i32 %[[mp0]], 0 |
| // CHECK: %[[mp1:.*]] = extractvalue { i32, i32, i32 } %[[mp]], 1 |
| // CHECK: %[[cmp1:.*]] = icmp ne i32 %[[mp1]], 0 |
| // CHECK: %[[and0:.*]] = and i1 %[[cmp0]], %[[cmp1]] |
| // CHECK: %[[mp2:.*]] = extractvalue { i32, i32, i32 } %[[mp]], 2 |
| // CHECK: %[[cmp2:.*]] = icmp ne i32 %[[mp2]], -1 |
| // CHECK: %[[and1:.*]] = and i1 %[[and0]], %[[cmp2]] |
| // CHECK: ret i1 %[[and1]] |
| // CHECK: } |
| } |
| |
| bool nullTestFunctionUnspecified(void (Unspecified::*mp)()) { |
| return mp; |
| // CHECK: define zeroext i1 @"\01?nullTestFunctionUnspecified@@YA_NP8Unspecified@@AEXXZ@Z"{{.*}} { |
| // CHECK: %{{.*}} = load { i8*, i32, i32, i32 }* %{{.*}}, align 4 |
| // CHECK: store { i8*, i32, i32, i32 } {{.*}} align 4 |
| // CHECK: %[[mp:.*]] = load { i8*, i32, i32, i32 }* %{{.*}}, align 4 |
| // CHECK: %[[mp0:.*]] = extractvalue { i8*, i32, i32, i32 } %[[mp]], 0 |
| // CHECK: %[[cmp0:.*]] = icmp ne i8* %[[mp0]], null |
| // CHECK: ret i1 %[[cmp0]] |
| // CHECK: } |
| } |
| |
| int loadDataMemberPointerVirtual(Virtual *o, int Virtual::*memptr) { |
| return o->*memptr; |
| // Test that we can unpack this aggregate member pointer and load the member |
| // data pointer. |
| // CHECK: define i32 @"\01?loadDataMemberPointerVirtual@@YAHPAUVirtual@@PQ1@H@Z"{{.*}} { |
| // CHECK: %[[o:.*]] = load %{{.*}}** %{{.*}}, align 4 |
| // CHECK: %[[memptr:.*]] = load { i32, i32 }* %{{.*}}, align 4 |
| // CHECK: %[[memptr0:.*]] = extractvalue { i32, i32 } %[[memptr:.*]], 0 |
| // CHECK: %[[memptr1:.*]] = extractvalue { i32, i32 } %[[memptr:.*]], 1 |
| // CHECK: %[[v6:.*]] = bitcast %{{.*}}* %[[o]] to i8* |
| // CHECK: %[[vbptr:.*]] = getelementptr inbounds i8* %[[v6]], i32 0 |
| // CHECK: %[[vbptr_a:.*]] = bitcast i8* %[[vbptr]] to i8** |
| // CHECK: %[[vbtable:.*]] = load i8** %[[vbptr_a:.*]] |
| // CHECK: %[[v7:.*]] = getelementptr inbounds i8* %[[vbtable]], i32 %[[memptr1]] |
| // CHECK: %[[v8:.*]] = bitcast i8* %[[v7]] to i32* |
| // CHECK: %[[vbase_offs:.*]] = load i32* %[[v8]] |
| // CHECK: %[[v10:.*]] = getelementptr inbounds i8* %[[vbptr]], i32 %[[vbase_offs]] |
| // CHECK: %[[offset:.*]] = getelementptr inbounds i8* %[[v10]], i32 %[[memptr0]] |
| // CHECK: %[[v11:.*]] = bitcast i8* %[[offset]] to i32* |
| // CHECK: %[[v12:.*]] = load i32* %[[v11]] |
| // CHECK: ret i32 %[[v12]] |
| // CHECK: } |
| } |
| |
| int loadDataMemberPointerUnspecified(Unspecified *o, int Unspecified::*memptr) { |
| return o->*memptr; |
| // Test that we can unpack this aggregate member pointer and load the member |
| // data pointer. |
| // CHECK: define i32 @"\01?loadDataMemberPointerUnspecified@@YAHPAUUnspecified@@PQ1@H@Z"{{.*}} { |
| // CHECK: %[[o:.*]] = load %{{.*}}** %{{.*}}, align 4 |
| // CHECK: %[[memptr:.*]] = load { i32, i32, i32 }* %{{.*}}, align 4 |
| // CHECK: %[[memptr0:.*]] = extractvalue { i32, i32, i32 } %[[memptr:.*]], 0 |
| // CHECK: %[[memptr1:.*]] = extractvalue { i32, i32, i32 } %[[memptr:.*]], 1 |
| // CHECK: %[[memptr2:.*]] = extractvalue { i32, i32, i32 } %[[memptr:.*]], 2 |
| // CHECK: %[[base:.*]] = bitcast %{{.*}}* %[[o]] to i8* |
| // CHECK: %[[is_vbase:.*]] = icmp ne i32 %[[memptr2]], 0 |
| // CHECK: br i1 %[[is_vbase]], label %[[vadjust:.*]], label %[[skip:.*]] |
| // |
| // CHECK: [[vadjust]] |
| // CHECK: %[[vbptr:.*]] = getelementptr inbounds i8* %[[base]], i32 %[[memptr1]] |
| // CHECK: %[[vbptr_a:.*]] = bitcast i8* %[[vbptr]] to i8** |
| // CHECK: %[[vbtable:.*]] = load i8** %[[vbptr_a:.*]] |
| // CHECK: %[[v7:.*]] = getelementptr inbounds i8* %[[vbtable]], i32 %[[memptr2]] |
| // CHECK: %[[v8:.*]] = bitcast i8* %[[v7]] to i32* |
| // CHECK: %[[vbase_offs:.*]] = load i32* %[[v8]] |
| // CHECK: %[[base_adj:.*]] = getelementptr inbounds i8* %[[vbptr]], i32 %[[vbase_offs]] |
| // |
| // CHECK: [[skip]] |
| // CHECK: %[[new_base:.*]] = phi i8* [ %[[base]], %{{.*}} ], [ %[[base_adj]], %[[vadjust]] ] |
| // CHECK: %[[offset:.*]] = getelementptr inbounds i8* %[[new_base]], i32 %[[memptr0]] |
| // CHECK: %[[v11:.*]] = bitcast i8* %[[offset]] to i32* |
| // CHECK: %[[v12:.*]] = load i32* %[[v11]] |
| // CHECK: ret i32 %[[v12]] |
| // CHECK: } |
| } |
| |
| void callMemberPointerSingle(Single *o, void (Single::*memptr)()) { |
| (o->*memptr)(); |
| // Just look for an indirect thiscall. |
| // CHECK: define void @"\01?callMemberPointerSingle@@{{.*}} {{.*}} { |
| // CHECK: call x86_thiscallcc void %{{.*}}(%{{.*}} %{{.*}}) |
| // CHECK: ret void |
| // CHECK: } |
| } |
| |
| void callMemberPointerMultiple(Multiple *o, void (Multiple::*memptr)()) { |
| (o->*memptr)(); |
| // CHECK: define void @"\01?callMemberPointerMultiple@@{{.*}} { |
| // CHECK: %[[memptr0:.*]] = extractvalue { i8*, i32 } %{{.*}}, 0 |
| // CHECK: %[[memptr1:.*]] = extractvalue { i8*, i32 } %{{.*}}, 1 |
| // CHECK: %[[this_adjusted:.*]] = getelementptr inbounds i8* %{{.*}}, i32 %[[memptr1]] |
| // CHECK: %[[this:.*]] = bitcast i8* %[[this_adjusted]] to {{.*}} |
| // CHECK: %[[fptr:.*]] = bitcast i8* %[[memptr0]] to {{.*}} |
| // CHECK: call x86_thiscallcc void %[[fptr]](%{{.*}} %[[this]]) |
| // CHECK: ret void |
| // CHECK: } |
| } |
| |
| void callMemberPointerVirtualBase(Virtual *o, void (Virtual::*memptr)()) { |
| (o->*memptr)(); |
| // This shares a lot with virtual data member pointers. |
| // CHECK: define void @"\01?callMemberPointerVirtualBase@@{{.*}} { |
| // CHECK: %[[memptr0:.*]] = extractvalue { i8*, i32, i32 } %{{.*}}, 0 |
| // CHECK: %[[memptr1:.*]] = extractvalue { i8*, i32, i32 } %{{.*}}, 1 |
| // CHECK: %[[memptr2:.*]] = extractvalue { i8*, i32, i32 } %{{.*}}, 2 |
| // CHECK: %[[vbptr:.*]] = getelementptr inbounds i8* %{{.*}}, i32 0 |
| // CHECK: %[[vbptr_a:.*]] = bitcast i8* %[[vbptr]] to i8** |
| // CHECK: %[[vbtable:.*]] = load i8** %[[vbptr_a:.*]] |
| // CHECK: %[[v7:.*]] = getelementptr inbounds i8* %[[vbtable]], i32 %[[memptr2]] |
| // CHECK: %[[v8:.*]] = bitcast i8* %[[v7]] to i32* |
| // CHECK: %[[vbase_offs:.*]] = load i32* %[[v8]] |
| // CHECK: %[[v10:.*]] = getelementptr inbounds i8* %[[vbptr]], i32 %[[vbase_offs]] |
| // CHECK: %[[this_adjusted:.*]] = getelementptr inbounds i8* %[[v10]], i32 %[[memptr1]] |
| // CHECK: %[[fptr:.*]] = bitcast i8* %[[memptr0]] to void ({{.*}}) |
| // CHECK: %[[this:.*]] = bitcast i8* %[[this_adjusted]] to {{.*}} |
| // CHECK: call x86_thiscallcc void %[[fptr]](%{{.*}} %[[this]]) |
| // CHECK: ret void |
| // CHECK: } |
| } |
| |
| bool compareSingleFunctionMemptr(void (Single::*l)(), void (Single::*r)()) { |
| return l == r; |
| // Should only be one comparison here. |
| // CHECK: define zeroext i1 @"\01?compareSingleFunctionMemptr@@YA_NP8Single@@AEXXZ0@Z"{{.*}} { |
| // CHECK-NOT: icmp |
| // CHECK: %[[r:.*]] = icmp eq |
| // CHECK-NOT: icmp |
| // CHECK: ret i1 %[[r]] |
| // CHECK: } |
| } |
| |
| bool compareNeqSingleFunctionMemptr(void (Single::*l)(), void (Single::*r)()) { |
| return l != r; |
| // Should only be one comparison here. |
| // CHECK: define zeroext i1 @"\01?compareNeqSingleFunctionMemptr@@YA_NP8Single@@AEXXZ0@Z"{{.*}} { |
| // CHECK-NOT: icmp |
| // CHECK: %[[r:.*]] = icmp ne |
| // CHECK-NOT: icmp |
| // CHECK: ret i1 %[[r]] |
| // CHECK: } |
| } |
| |
| bool unspecFuncMemptrEq(void (Unspecified::*l)(), void (Unspecified::*r)()) { |
| return l == r; |
| // CHECK: define zeroext i1 @"\01?unspecFuncMemptrEq@@YA_NP8Unspecified@@AEXXZ0@Z"{{.*}} { |
| // CHECK: %[[lhs0:.*]] = extractvalue { i8*, i32, i32, i32 } %[[l:.*]], 0 |
| // CHECK: %{{.*}} = extractvalue { i8*, i32, i32, i32 } %[[r:.*]], 0 |
| // CHECK: %[[cmp0:.*]] = icmp eq i8* %[[lhs0]], %{{.*}} |
| // CHECK: %{{.*}} = extractvalue { i8*, i32, i32, i32 } %[[l]], 1 |
| // CHECK: %{{.*}} = extractvalue { i8*, i32, i32, i32 } %[[r]], 1 |
| // CHECK: %[[cmp1:.*]] = icmp eq i32 |
| // CHECK: %{{.*}} = extractvalue { i8*, i32, i32, i32 } %[[l]], 2 |
| // CHECK: %{{.*}} = extractvalue { i8*, i32, i32, i32 } %[[r]], 2 |
| // CHECK: %[[cmp2:.*]] = icmp eq i32 |
| // CHECK: %[[res12:.*]] = and i1 %[[cmp1]], %[[cmp2]] |
| // CHECK: %{{.*}} = extractvalue { i8*, i32, i32, i32 } %[[l]], 3 |
| // CHECK: %{{.*}} = extractvalue { i8*, i32, i32, i32 } %[[r]], 3 |
| // CHECK: %[[cmp3:.*]] = icmp eq i32 |
| // CHECK: %[[res123:.*]] = and i1 %[[res12]], %[[cmp3]] |
| // CHECK: %[[iszero:.*]] = icmp eq i8* %[[lhs0]], null |
| // CHECK: %[[bits_or_null:.*]] = or i1 %[[res123]], %[[iszero]] |
| // CHECK: %{{.*}} = and i1 %[[bits_or_null]], %[[cmp0]] |
| // CHECK: ret i1 %{{.*}} |
| // CHECK: } |
| } |
| |
| bool unspecFuncMemptrNeq(void (Unspecified::*l)(), void (Unspecified::*r)()) { |
| return l != r; |
| // CHECK: define zeroext i1 @"\01?unspecFuncMemptrNeq@@YA_NP8Unspecified@@AEXXZ0@Z"{{.*}} { |
| // CHECK: %[[lhs0:.*]] = extractvalue { i8*, i32, i32, i32 } %[[l:.*]], 0 |
| // CHECK: %{{.*}} = extractvalue { i8*, i32, i32, i32 } %[[r:.*]], 0 |
| // CHECK: %[[cmp0:.*]] = icmp ne i8* %[[lhs0]], %{{.*}} |
| // CHECK: %{{.*}} = extractvalue { i8*, i32, i32, i32 } %[[l]], 1 |
| // CHECK: %{{.*}} = extractvalue { i8*, i32, i32, i32 } %[[r]], 1 |
| // CHECK: %[[cmp1:.*]] = icmp ne i32 |
| // CHECK: %{{.*}} = extractvalue { i8*, i32, i32, i32 } %[[l]], 2 |
| // CHECK: %{{.*}} = extractvalue { i8*, i32, i32, i32 } %[[r]], 2 |
| // CHECK: %[[cmp2:.*]] = icmp ne i32 |
| // CHECK: %[[res12:.*]] = or i1 %[[cmp1]], %[[cmp2]] |
| // CHECK: %{{.*}} = extractvalue { i8*, i32, i32, i32 } %[[l]], 3 |
| // CHECK: %{{.*}} = extractvalue { i8*, i32, i32, i32 } %[[r]], 3 |
| // CHECK: %[[cmp3:.*]] = icmp ne i32 |
| // CHECK: %[[res123:.*]] = or i1 %[[res12]], %[[cmp3]] |
| // CHECK: %[[iszero:.*]] = icmp ne i8* %[[lhs0]], null |
| // CHECK: %[[bits_or_null:.*]] = and i1 %[[res123]], %[[iszero]] |
| // CHECK: %{{.*}} = or i1 %[[bits_or_null]], %[[cmp0]] |
| // CHECK: ret i1 %{{.*}} |
| // CHECK: } |
| } |
| |
| bool unspecDataMemptrEq(int Unspecified::*l, int Unspecified::*r) { |
| return l == r; |
| // CHECK: define zeroext i1 @"\01?unspecDataMemptrEq@@YA_NPQUnspecified@@H0@Z"{{.*}} { |
| // CHECK: extractvalue { i32, i32, i32 } %{{.*}}, 0 |
| // CHECK: extractvalue { i32, i32, i32 } %{{.*}}, 0 |
| // CHECK: icmp eq i32 |
| // CHECK: extractvalue { i32, i32, i32 } %{{.*}}, 1 |
| // CHECK: extractvalue { i32, i32, i32 } %{{.*}}, 1 |
| // CHECK: icmp eq i32 |
| // CHECK: extractvalue { i32, i32, i32 } %{{.*}}, 2 |
| // CHECK: extractvalue { i32, i32, i32 } %{{.*}}, 2 |
| // CHECK: icmp eq i32 |
| // CHECK: and i1 |
| // CHECK: and i1 |
| // CHECK: ret i1 |
| // CHECK: } |
| } |
| |
| void (Multiple::*convertB2FuncToMultiple(void (B2::*mp)()))() { |
| return mp; |
| // CHECK: define i64 @"\01?convertB2FuncToMultiple@@YAP8Multiple@@AEXXZP8B2@@AEXXZ@Z"{{.*}} { |
| // CHECK: store |
| // CHECK: %[[mp:.*]] = load i8** %{{.*}}, align 4 |
| // CHECK: icmp ne i8* %[[mp]], null |
| // CHECK: br i1 %{{.*}} label %{{.*}}, label %{{.*}} |
| // |
| // memptr.convert: ; preds = %entry |
| // CHECK: insertvalue { i8*, i32 } undef, i8* %[[mp]], 0 |
| // CHECK: insertvalue { i8*, i32 } %{{.*}}, i32 4, 1 |
| // CHECK: br label |
| // |
| // memptr.converted: ; preds = %memptr.convert, %entry |
| // CHECK: phi { i8*, i32 } [ zeroinitializer, %{{.*}} ], [ {{.*}} ] |
| // CHECK: } |
| } |
| |
| void (B2::*convertMultipleFuncToB2(void (Multiple::*mp)()))() { |
| // FIXME: cl emits warning C4407 on this code because of the representation |
| // change. We might want to do the same. |
| return static_cast<void (B2::*)()>(mp); |
| // FIXME: We should return i8* instead of i32 here. The ptrtoint cast prevents |
| // LLVM from optimizing away the branch. This is likely a bug in |
| // lib/CodeGen/TargetInfo.cpp with how we classify memptr types for returns. |
| // |
| // CHECK: define i32 @"\01?convertMultipleFuncToB2@@YAP8B2@@AEXXZP8Multiple@@AEXXZ@Z"{{.*}} { |
| // CHECK: store |
| // CHECK: %[[src:.*]] = load { i8*, i32 }* %{{.*}}, align 4 |
| // CHECK: extractvalue { i8*, i32 } %[[src]], 0 |
| // CHECK: icmp ne i8* %{{.*}}, null |
| // CHECK: br i1 %{{.*}}, label %{{.*}}, label %{{.*}} |
| // |
| // memptr.convert: ; preds = %entry |
| // CHECK: %[[fp:.*]] = extractvalue { i8*, i32 } %[[src]], 0 |
| // CHECK: br label |
| // |
| // memptr.converted: ; preds = %memptr.convert, %entry |
| // CHECK: phi i8* [ null, %{{.*}} ], [ %[[fp]], %{{.*}} ] |
| // CHECK: } |
| } |
| |
| namespace Test1 { |
| |
| struct A { int a; }; |
| struct B { int b; }; |
| struct C : virtual A { int c; }; |
| struct D : B, C { int d; }; |
| |
| void (D::*convertCToD(void (C::*mp)()))() { |
| return mp; |
| // CHECK: define void @"\01?convertCToD@Test1@@YAP8D@1@AEXXZP8C@1@AEXXZ@Z"{{.*}} { |
| // CHECK: store |
| // CHECK: load { i8*, i32, i32 }* %{{.*}}, align 4 |
| // CHECK: extractvalue { i8*, i32, i32 } %{{.*}}, 0 |
| // CHECK: icmp ne i8* %{{.*}}, null |
| // CHECK: br i1 %{{.*}}, label %{{.*}}, label %{{.*}} |
| // |
| // memptr.convert: ; preds = %entry |
| // CHECK: extractvalue { i8*, i32, i32 } %{{.*}}, 0 |
| // CHECK: extractvalue { i8*, i32, i32 } %{{.*}}, 1 |
| // CHECK: extractvalue { i8*, i32, i32 } %{{.*}}, 2 |
| // CHECK: %[[adj:.*]] = add nsw i32 %{{.*}}, 4 |
| // CHECK: insertvalue { i8*, i32, i32 } undef, i8* {{.*}}, 0 |
| // CHECK: insertvalue { i8*, i32, i32 } {{.*}}, i32 %[[adj]], 1 |
| // CHECK: insertvalue { i8*, i32, i32 } {{.*}}, i32 {{.*}}, 2 |
| // CHECK: br label |
| // |
| // memptr.converted: ; preds = %memptr.convert, %entry |
| // CHECK: phi { i8*, i32, i32 } [ { i8* null, i32 0, i32 -1 }, {{.*}} ], [ {{.*}} ] |
| // CHECK: } |
| } |
| |
| } |
| |
| namespace Test2 { |
| // Test that we dynamically convert between different null reps. |
| |
| struct A { int a; }; |
| struct B : A { int b; }; |
| struct C : A { |
| int c; |
| virtual void hasVfPtr(); |
| }; |
| |
| int A::*reinterpret(int B::*mp) { |
| return reinterpret_cast<int A::*>(mp); |
| // CHECK: define i32 @"\01?reinterpret@Test2@@YAPQA@1@HPQB@1@H@Z"{{.*}} { |
| // CHECK-NOT: select |
| // CHECK: ret i32 |
| // CHECK: } |
| } |
| |
| int A::*reinterpret(int C::*mp) { |
| return reinterpret_cast<int A::*>(mp); |
| // CHECK: define i32 @"\01?reinterpret@Test2@@YAPQA@1@HPQC@1@H@Z"{{.*}} { |
| // CHECK: %[[mp:.*]] = load i32* |
| // CHECK: %[[cmp:.*]] = icmp ne i32 %[[mp]], 0 |
| // CHECK: select i1 %[[cmp]], i32 %[[mp]], i32 -1 |
| // CHECK: } |
| } |
| |
| } |