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// RUN: %clang_cc1 -std=c++11 -fno-rtti -emit-llvm %s -o - -triple=i386-pc-win32 -fms-extensions | FileCheck %s
// RUN: %clang_cc1 -std=c++11 -fno-rtti -emit-llvm %s -o - -triple=x86_64-pc-win32 -fms-extensions | FileCheck %s -check-prefix=X64
// RUN: %clang_cc1 -std=c++11 -fno-rtti -emit-llvm %s -o - -triple=i386-pc-win32 -DINCOMPLETE_VIRTUAL -fms-extensions -verify
// RUN: %clang_cc1 -std=c++11 -fno-rtti -emit-llvm %s -o - -triple=i386-pc-win32 -DINCOMPLETE_VIRTUAL -DMEMFUN -fms-extensions -verify
// FIXME: Test x86_64 member pointers when codegen no longer asserts on records
// with virtual bases.
#ifndef INCOMPLETE_VIRTUAL
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;
struct UnspecSingle;
// 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;
int UnspecSingle::*us_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 8
// CHECK: @"\01?n_d_memptr@@3PQNonZeroVBPtr@@HQ1@" = global { i32, i32 }
// CHECK: { i32 0, i32 -1 }, align 8
// CHECK: @"\01?u_d_memptr@@3PQUnspecified@@HQ1@" = global { i32, i32, i32 }
// CHECK: { i32 0, i32 0, i32 -1 }, align 8
// CHECK: @"\01?us_d_memptr@@3PQUnspecSingle@@HQ1@" = global { i32, i32, i32 }
// CHECK: { i32 0, i32 0, i32 -1 }, align 8
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 8
// CHECK: @"\01?v_f_memptr@@3P8Virtual@@AEXXZQ1@" = global { i8*, i32, i32 } zeroinitializer, align 8
// We can define Unspecified after locking in the inheritance model.
struct Unspecified : Multiple, Virtual {
void foo();
int u;
};
struct UnspecSingle {
void foo();
};
// 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;
void (UnspecSingle::*us_f_mp)() = &UnspecSingle::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 8
// 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 8
// 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 8
// CHECK: @"\01?us_f_mp@Const@@3P8UnspecSingle@@AEXXZQ2@" =
// CHECK: global { i8*, i32, i32, i32 } { i8* bitcast ({{.*}} @"\01?foo@UnspecSingle@@QAEXXZ" to i8*), i32 0, i32 0, i32 0 }, align 8
}
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 8
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 8
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 8
// CHECK: alloca { i8*, i32, i32 }, align 8
// CHECK: alloca { i8*, i32, i32, i32 }, align 8
// 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 8
// CHECK: store { i8*, i32, i32 }
// CHECK: { i8* bitcast (void (%{{.*}}*)* @"\01?foo@Virtual@@QAEXXZ" to i8*), i32 0, i32 0 },
// CHECK: { i8*, i32, i32 }* %{{.*}}, align 8
// 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 8
// 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 8
// 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 8
// CHECK: store { i32, i32, i32 } {{.*}} align 8
// CHECK: %[[mp:.*]] = load { i32, i32, i32 }* %{{.*}}, align 8
// 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:.*]] = or i1 %[[cmp0]], %[[cmp1]]
// CHECK: %[[mp2:.*]] = extractvalue { i32, i32, i32 } %[[mp]], 2
// CHECK: %[[cmp2:.*]] = icmp ne i32 %[[mp2]], -1
// CHECK: %[[and1:.*]] = or i1 %[[and0]], %[[cmp2]]
// CHECK: ret i1 %[[and1]]
// CHECK: }
// Pass this large type indirectly.
// X64-LABEL: define zeroext i1 @"\01?nullTestDataUnspecified@@
// X64: ({ i32, i32, i32 }*)
}
bool nullTestFunctionUnspecified(void (Unspecified::*mp)()) {
return mp;
// CHECK: define zeroext i1 @"\01?nullTestFunctionUnspecified@@YA_NP8Unspecified@@AEXXZ@Z"{{.*}} {
// CHECK: %{{.*}} = load { i8*, i32, i32, i32 }* %{{.*}}, align 8
// CHECK: store { i8*, i32, i32, i32 } {{.*}} align 8
// CHECK: %[[mp:.*]] = load { i8*, i32, i32, i32 }* %{{.*}}, align 8
// 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 8
// 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: }
// A two-field data memptr on x64 gets coerced to i64 and is passed in a
// register or memory.
// X64-LABEL: define i32 @"\01?loadDataMemberPointerVirtual@@YAHPEAUVirtual@@PEQ1@H@Z"
// X64: (%struct.Virtual* %o, i64 %memptr.coerce)
}
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 8
// 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: }
// X64-LABEL: define void @"\01?callMemberPointerSingle@@
// X64: (%struct.Single* %o, i8* %memptr)
// X64: bitcast i8* %{{[^ ]*}} to void (%struct.Single*)*
// X64: ret void
}
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: }
// X64-LABEL: define zeroext i1 @"\01?compareSingleFunctionMemptr@@
// X64: (i8* %{{[^,]*}}, i8* %{{[^)]*}})
}
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: }
// X64-LABEL: define zeroext i1 @"\01?unspecFuncMemptrEq@@
// X64: ({ i8*, i32, i32, i32 }*, { i8*, i32, i32, i32 }*)
}
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: }
// X64-LABEL: define zeroext i1 @"\01?unspecDataMemptrEq@@
// X64: ({ i32, i32, i32 }*, { i32, i32, i32 }*)
}
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 8
// 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 8
// 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: }
}
}
namespace Test3 {
// Make sure we cast 'this' to i8* before using GEP.
struct A {
int a;
int b;
};
int *load_data(A *a, int A::*mp) {
return &(a->*mp);
// CHECK-LABEL: define i32* @"\01?load_data@Test3@@YAPAHPAUA@1@PQ21@H@Z"{{.*}} {
// CHECK: %[[a:.*]] = load %"struct.Test3::A"** %{{.*}}, align 4
// CHECK: %[[mp:.*]] = load i32* %{{.*}}, align 4
// CHECK: %[[a_i8:.*]] = bitcast %"struct.Test3::A"* %[[a]] to i8*
// CHECK: getelementptr inbounds i8* %[[a_i8]], i32 %[[mp]]
// CHECK: }
}
}
namespace Test4 {
struct A { virtual void f(); };
struct B { virtual void g(); };
struct C : A, B { virtual void g(); };
void (C::*getmp())() {
return &C::g;
}
// CHECK-LABEL: define i64 @"\01?getmp@Test4@@YAP8C@1@AEXXZXZ"()
// CHECK: store { i8*, i32 } { i8* bitcast (void (i8*)* @"\01??_9C@Test4@@$BA@AE" to i8*), i32 4 }, { i8*, i32 }* %{{.*}}
//
// CHECK-LABEL: define linkonce_odr x86_thiscallcc void @"\01??_9C@Test4@@$BA@AE"(i8*)
// CHECK-NOT: getelementptr
// CHECK: load void (i8*)*** %{{.*}}
// CHECK: getelementptr inbounds void (i8*)** %{{.*}}, i64 0
// CHECK-NOT: getelementptr
// CHECK: call x86_thiscallcc void %
}
namespace pr20007 {
struct A {
void f();
void f(int);
};
struct B : public A {};
void test() { void (B::*a)() = &B::f; }
// CHECK-LABEL: define void @"\01?test@pr20007@@YAXXZ"
// CHECK: store i8* bitcast (void (%"struct.pr20007::A"*)* @"\01?f@A@pr20007@@QAEXXZ" to i8*)
}
namespace pr20007_kw {
struct A {
void f();
void f(int);
};
struct __single_inheritance B;
struct B : public A {};
void test() { void (B::*a)() = &B::f; }
// CHECK-LABEL: define void @"\01?test@pr20007_kw@@YAXXZ"
// CHECK: store i8* bitcast (void (%"struct.pr20007_kw::A"*)* @"\01?f@A@pr20007_kw@@QAEXXZ" to i8*)
}
namespace pr19987 {
template <typename T>
struct S {
int T::*x;
};
struct U : S<U> {};
static_assert(sizeof(S<U>::x) == 12, "");
}
#else
struct __virtual_inheritance A;
#ifdef MEMFUN
int foo(A *a, int (A::*mp)()) {
return (a->*mp)(); // expected-error{{requires a complete class type}}
}
#else
int foo(A *a, int A::*mp) {
return a->*mp; // expected-error{{requires a complete class type}}
}
#endif
#endif
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