forked from OSchip/llvm-project
704 lines
27 KiB
C++
704 lines
27 KiB
C++
// RUN: %clang_cc1 -std=c++11 -Wno-uninitialized -fno-rtti -emit-llvm %s -o - -triple=i386-pc-win32 -fms-extensions | FileCheck %s
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// RUN: %clang_cc1 -std=c++11 -Wno-uninitialized -fno-rtti -emit-llvm %s -o - -triple=x86_64-pc-win32 -fms-extensions | FileCheck %s -check-prefix=X64
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// RUN: %clang_cc1 -std=c++11 -Wno-uninitialized -fno-rtti -emit-llvm %s -o - -triple=i386-pc-win32 -DINCOMPLETE_VIRTUAL -fms-extensions -verify
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// RUN: %clang_cc1 -std=c++11 -Wno-uninitialized -fno-rtti -emit-llvm %s -o - -triple=i386-pc-win32 -DINCOMPLETE_VIRTUAL -DMEMFUN -fms-extensions -verify
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namespace PR20947 {
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struct A;
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int A::**a = nullptr;
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// CHECK: %[[opaque0:.*]] = type opaque
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// CHECK: %[[opaque1:.*]] = type opaque
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// CHECK: @"\01?a@PR20947@@3PAPQA@1@HA" = global %[[opaque0]]* null, align 4
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struct B;
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int B::*&b = b;
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// CHECK: @"\01?b@PR20947@@3AAPQB@1@HA" = global %[[opaque1]]* null, align 4
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}
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namespace PR20017 {
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template <typename T>
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struct A {
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int T::*m_fn1() { return nullptr; }
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};
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struct B;
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auto a = &A<B>::m_fn1;
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// CHECK-DAG: @"\01?a@PR20017@@3P8?$A@UB@PR20017@@@1@AEPQB@1@HXZQ21@" = global i8* bitcast ({ i32, i32, i32 } ({{.*}}*)* @"\01?m_fn1@?$A@UB@PR20017@@@PR20017@@QAEPQB@2@HXZ" to i8*), align 4
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}
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#ifndef INCOMPLETE_VIRTUAL
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struct B1 {
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void foo();
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int b;
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};
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struct B2 {
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int b2;
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void foo();
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};
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struct Single : B1 {
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void foo();
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};
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struct Multiple : B1, B2 {
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int m;
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void foo();
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};
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struct Virtual : virtual B1 {
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int v;
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void foo();
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};
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struct POD {
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int a;
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int b;
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};
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struct Polymorphic {
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virtual void myVirtual();
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int a;
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int b;
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};
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// This class uses the virtual inheritance model, yet its vbptr offset is not 0.
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// We still use zero for the null field offset, despite it being a valid field
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// offset.
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struct NonZeroVBPtr : POD, Virtual {
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int n;
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void foo();
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};
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struct Unspecified;
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struct UnspecSingle;
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// Check that we can lower the LLVM types and get the null initializers right.
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int Single ::*s_d_memptr;
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int Polymorphic::*p_d_memptr;
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int Multiple ::*m_d_memptr;
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int Virtual ::*v_d_memptr;
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int NonZeroVBPtr::*n_d_memptr;
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int Unspecified::*u_d_memptr;
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int UnspecSingle::*us_d_memptr;
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// CHECK: @"\01?s_d_memptr@@3PQSingle@@HQ1@" = global i32 -1, align 4
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// CHECK: @"\01?p_d_memptr@@3PQPolymorphic@@HQ1@" = global i32 0, align 4
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// CHECK: @"\01?m_d_memptr@@3PQMultiple@@HQ1@" = global i32 -1, align 4
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// CHECK: @"\01?v_d_memptr@@3PQVirtual@@HQ1@" = global { i32, i32 }
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// CHECK: { i32 0, i32 -1 }, align 8
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// CHECK: @"\01?n_d_memptr@@3PQNonZeroVBPtr@@HQ1@" = global { i32, i32 }
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// CHECK: { i32 0, i32 -1 }, align 8
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// CHECK: @"\01?u_d_memptr@@3PQUnspecified@@HQ1@" = global { i32, i32, i32 }
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// CHECK: { i32 0, i32 0, i32 -1 }, align 8
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// CHECK: @"\01?us_d_memptr@@3PQUnspecSingle@@HQ1@" = global { i32, i32, i32 }
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// CHECK: { i32 0, i32 0, i32 -1 }, align 8
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void (Single ::*s_f_memptr)();
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void (Multiple::*m_f_memptr)();
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void (Virtual ::*v_f_memptr)();
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// CHECK: @"\01?s_f_memptr@@3P8Single@@AEXXZQ1@" = global i8* null, align 4
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// CHECK: @"\01?m_f_memptr@@3P8Multiple@@AEXXZQ1@" = global { i8*, i32 } zeroinitializer, align 8
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// CHECK: @"\01?v_f_memptr@@3P8Virtual@@AEXXZQ1@" = global { i8*, i32, i32 } zeroinitializer, align 8
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// We can define Unspecified after locking in the inheritance model.
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struct Unspecified : Multiple, Virtual {
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void foo();
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int u;
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};
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struct UnspecSingle {
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void foo();
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};
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// Test memptr emission in a constant expression.
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namespace Const {
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void (Single ::*s_f_mp)() = &Single::foo;
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void (Multiple ::*m_f_mp)() = &B2::foo;
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void (Virtual ::*v_f_mp)() = &Virtual::foo;
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void (Unspecified::*u_f_mp)() = &Unspecified::foo;
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void (UnspecSingle::*us_f_mp)() = &UnspecSingle::foo;
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// CHECK: @"\01?s_f_mp@Const@@3P8Single@@AEXXZQ2@" =
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// CHECK: global i8* bitcast ({{.*}} @"\01?foo@Single@@QAEXXZ" to i8*), align 4
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// CHECK: @"\01?m_f_mp@Const@@3P8Multiple@@AEXXZQ2@" =
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// CHECK: global { i8*, i32 } { i8* bitcast ({{.*}} @"\01?foo@B2@@QAEXXZ" to i8*), i32 4 }, align 8
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// CHECK: @"\01?v_f_mp@Const@@3P8Virtual@@AEXXZQ2@" =
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// CHECK: global { i8*, i32, i32 } { i8* bitcast ({{.*}} @"\01?foo@Virtual@@QAEXXZ" to i8*), i32 0, i32 0 }, align 8
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// CHECK: @"\01?u_f_mp@Const@@3P8Unspecified@@AEXXZQ2@" =
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// CHECK: global { i8*, i32, i32, i32 } { i8* bitcast ({{.*}} @"\01?foo@Unspecified@@QAEXXZ" to i8*), i32 0, i32 12, i32 0 }, align 8
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// CHECK: @"\01?us_f_mp@Const@@3P8UnspecSingle@@AEXXZQ2@" =
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// CHECK: global { i8*, i32, i32, i32 } { i8* bitcast ({{.*}} @"\01?foo@UnspecSingle@@QAEXXZ" to i8*), i32 0, i32 0, i32 0 }, align 8
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}
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namespace CastParam {
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// This exercises ConstExprEmitter instead of ValueDecl::evaluateValue. The
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// extra reinterpret_cast for the parameter type requires more careful folding.
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// FIXME: Or does it? If reinterpret_casts are no-ops, we should be able to
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// strip them in evaluateValue() and just proceed as normal with an APValue.
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struct A {
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int a;
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void foo(A *p);
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};
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struct B { int b; };
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struct C : B, A { int c; };
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void (A::*ptr1)(void *) = (void (A::*)(void *)) &A::foo;
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// CHECK: @"\01?ptr1@CastParam@@3P8A@1@AEXPAX@ZQ21@" =
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// CHECK: global i8* bitcast (void ({{.*}})* @"\01?foo@A@CastParam@@QAEXPAU12@@Z" to i8*), align 4
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// Try a reinterpret_cast followed by a memptr conversion.
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void (C::*ptr2)(void *) = (void (C::*)(void *)) (void (A::*)(void *)) &A::foo;
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// CHECK: @"\01?ptr2@CastParam@@3P8C@1@AEXPAX@ZQ21@" =
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// CHECK: global { i8*, i32 } { i8* bitcast (void ({{.*}})* @"\01?foo@A@CastParam@@QAEXPAU12@@Z" to i8*), i32 4 }, align 8
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void (C::*ptr3)(void *) = (void (C::*)(void *)) (void (A::*)(void *)) (void (A::*)(A *)) 0;
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// CHECK: @"\01?ptr3@CastParam@@3P8C@1@AEXPAX@ZQ21@" =
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// CHECK: global { i8*, i32 } zeroinitializer, align 8
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struct D : C {
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virtual void isPolymorphic();
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int d;
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};
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// Try a cast that changes the inheritance model. Null for D is 0, but null for
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// C is -1. We need the cast to long in order to hit the non-APValue path.
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int C::*ptr4 = (int C::*) (int D::*) (long D::*) 0;
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// CHECK: @"\01?ptr4@CastParam@@3PQC@1@HQ21@" = global i32 -1, align 4
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// MSVC rejects this but we accept it.
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int C::*ptr5 = (int C::*) (long D::*) 0;
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// CHECK: @"\01?ptr5@CastParam@@3PQC@1@HQ21@" = global i32 -1, align 4
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}
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struct UnspecWithVBPtr;
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int UnspecWithVBPtr::*forceUnspecWithVBPtr;
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struct UnspecWithVBPtr : B1, virtual B2 {
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int u;
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void foo();
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};
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// Test emitting non-virtual member pointers in a non-constexpr setting.
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void EmitNonVirtualMemberPointers() {
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void (Single ::*s_f_memptr)() = &Single::foo;
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void (Multiple ::*m_f_memptr)() = &Multiple::foo;
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void (Virtual ::*v_f_memptr)() = &Virtual::foo;
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void (Unspecified::*u_f_memptr)() = &Unspecified::foo;
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void (UnspecWithVBPtr::*u2_f_memptr)() = &UnspecWithVBPtr::foo;
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// CHECK: define void @"\01?EmitNonVirtualMemberPointers@@YAXXZ"() {{.*}} {
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// CHECK: alloca i8*, align 4
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// CHECK: alloca { i8*, i32 }, align 8
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// CHECK: alloca { i8*, i32, i32 }, align 8
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// CHECK: alloca { i8*, i32, i32, i32 }, align 8
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// CHECK: store i8* bitcast (void (%{{.*}}*)* @"\01?foo@Single@@QAEXXZ" to i8*), i8** %{{.*}}, align 4
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// CHECK: store { i8*, i32 }
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// CHECK: { i8* bitcast (void (%{{.*}}*)* @"\01?foo@Multiple@@QAEXXZ" to i8*), i32 0 },
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// CHECK: { i8*, i32 }* %{{.*}}, align 8
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// CHECK: store { i8*, i32, i32 }
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// CHECK: { i8* bitcast (void (%{{.*}}*)* @"\01?foo@Virtual@@QAEXXZ" to i8*), i32 0, i32 0 },
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// CHECK: { i8*, i32, i32 }* %{{.*}}, align 8
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// CHECK: store { i8*, i32, i32, i32 }
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// CHECK: { i8* bitcast (void (%{{.*}}*)* @"\01?foo@Unspecified@@QAEXXZ" to i8*), i32 0, i32 12, i32 0 },
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// CHECK: { i8*, i32, i32, i32 }* %{{.*}}, align 8
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// CHECK: store { i8*, i32, i32, i32 }
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// CHECK: { i8* bitcast (void (%{{.*}}*)* @"\01?foo@UnspecWithVBPtr@@QAEXXZ" to i8*),
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// CHECK: i32 0, i32 4, i32 0 },
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// CHECK: { i8*, i32, i32, i32 }* %{{.*}}, align 8
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// CHECK: ret void
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// CHECK: }
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}
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void podMemPtrs() {
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int POD::*memptr;
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memptr = &POD::a;
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memptr = &POD::b;
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if (memptr)
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memptr = 0;
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// Check that member pointers use the right offsets and that null is -1.
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// CHECK: define void @"\01?podMemPtrs@@YAXXZ"() {{.*}} {
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// CHECK: %[[memptr:.*]] = alloca i32, align 4
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// CHECK-NEXT: store i32 0, i32* %[[memptr]], align 4
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// CHECK-NEXT: store i32 4, i32* %[[memptr]], align 4
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// CHECK-NEXT: %[[memptr_val:.*]] = load i32, i32* %[[memptr]], align 4
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// CHECK-NEXT: %{{.*}} = icmp ne i32 %[[memptr_val]], -1
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// CHECK-NEXT: br i1 %{{.*}}, label %{{.*}}, label %{{.*}}
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// CHECK: store i32 -1, i32* %[[memptr]], align 4
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// CHECK: ret void
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// CHECK: }
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}
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void polymorphicMemPtrs() {
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int Polymorphic::*memptr;
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memptr = &Polymorphic::a;
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memptr = &Polymorphic::b;
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if (memptr)
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memptr = 0;
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// Member pointers for polymorphic classes include the vtable slot in their
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// offset and use 0 to represent null.
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// CHECK: define void @"\01?polymorphicMemPtrs@@YAXXZ"() {{.*}} {
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// CHECK: %[[memptr:.*]] = alloca i32, align 4
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// CHECK-NEXT: store i32 4, i32* %[[memptr]], align 4
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// CHECK-NEXT: store i32 8, i32* %[[memptr]], align 4
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// CHECK-NEXT: %[[memptr_val:.*]] = load i32, i32* %[[memptr]], align 4
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// CHECK-NEXT: %{{.*}} = icmp ne i32 %[[memptr_val]], 0
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// CHECK-NEXT: br i1 %{{.*}}, label %{{.*}}, label %{{.*}}
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// CHECK: store i32 0, i32* %[[memptr]], align 4
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// CHECK: ret void
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// CHECK: }
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}
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bool nullTestDataUnspecified(int Unspecified::*mp) {
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return mp;
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// CHECK: define zeroext i1 @"\01?nullTestDataUnspecified@@YA_NPQUnspecified@@H@Z"{{.*}} {
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// CHECK: %{{.*}} = load { i32, i32, i32 }, { i32, i32, i32 }* %{{.*}}, align 8
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// CHECK: store { i32, i32, i32 } {{.*}} align 8
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// CHECK: %[[mp:.*]] = load { i32, i32, i32 }, { i32, i32, i32 }* %{{.*}}, align 8
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// CHECK: %[[mp0:.*]] = extractvalue { i32, i32, i32 } %[[mp]], 0
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// CHECK: %[[cmp0:.*]] = icmp ne i32 %[[mp0]], 0
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// CHECK: %[[mp1:.*]] = extractvalue { i32, i32, i32 } %[[mp]], 1
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// CHECK: %[[cmp1:.*]] = icmp ne i32 %[[mp1]], 0
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// CHECK: %[[and0:.*]] = or i1 %[[cmp0]], %[[cmp1]]
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// CHECK: %[[mp2:.*]] = extractvalue { i32, i32, i32 } %[[mp]], 2
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// CHECK: %[[cmp2:.*]] = icmp ne i32 %[[mp2]], -1
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// CHECK: %[[and1:.*]] = or i1 %[[and0]], %[[cmp2]]
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// CHECK: ret i1 %[[and1]]
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// CHECK: }
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// Pass this large type indirectly.
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// X64-LABEL: define zeroext i1 @"\01?nullTestDataUnspecified@@
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// X64: ({ i32, i32, i32 }*)
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}
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bool nullTestFunctionUnspecified(void (Unspecified::*mp)()) {
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return mp;
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// CHECK: define zeroext i1 @"\01?nullTestFunctionUnspecified@@YA_NP8Unspecified@@AEXXZ@Z"{{.*}} {
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// CHECK: %{{.*}} = load { i8*, i32, i32, i32 }, { i8*, i32, i32, i32 }* %{{.*}}, align 8
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// CHECK: store { i8*, i32, i32, i32 } {{.*}} align 8
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// CHECK: %[[mp:.*]] = load { i8*, i32, i32, i32 }, { i8*, i32, i32, i32 }* %{{.*}}, align 8
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// CHECK: %[[mp0:.*]] = extractvalue { i8*, i32, i32, i32 } %[[mp]], 0
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// CHECK: %[[cmp0:.*]] = icmp ne i8* %[[mp0]], null
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// CHECK: ret i1 %[[cmp0]]
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// CHECK: }
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}
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int loadDataMemberPointerVirtual(Virtual *o, int Virtual::*memptr) {
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return o->*memptr;
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// Test that we can unpack this aggregate member pointer and load the member
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// data pointer.
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// CHECK: define i32 @"\01?loadDataMemberPointerVirtual@@YAHPAUVirtual@@PQ1@H@Z"{{.*}} {
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// CHECK: %[[o:.*]] = load %{{.*}}*, %{{.*}}** %{{.*}}, align 4
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// CHECK: %[[memptr:.*]] = load { i32, i32 }, { i32, i32 }* %{{.*}}, align 8
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// CHECK: %[[memptr0:.*]] = extractvalue { i32, i32 } %[[memptr:.*]], 0
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// CHECK: %[[memptr1:.*]] = extractvalue { i32, i32 } %[[memptr:.*]], 1
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// CHECK: %[[v6:.*]] = bitcast %{{.*}}* %[[o]] to i8*
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// CHECK: %[[vbptr:.*]] = getelementptr inbounds i8, i8* %[[v6]], i32 0
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// CHECK: %[[vbptr_a:.*]] = bitcast i8* %[[vbptr]] to i32**
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// CHECK: %[[vbtable:.*]] = load i32*, i32** %[[vbptr_a:.*]]
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// CHECK: %[[memptr1_shr:.*]] = ashr exact i32 %[[memptr1]], 2
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// CHECK: %[[v7:.*]] = getelementptr inbounds i32, i32* %[[vbtable]], i32 %[[memptr1_shr]]
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// CHECK: %[[vbase_offs:.*]] = load i32, i32* %[[v7]]
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// CHECK: %[[v10:.*]] = getelementptr inbounds i8, i8* %[[vbptr]], i32 %[[vbase_offs]]
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// CHECK: %[[offset:.*]] = getelementptr inbounds i8, i8* %[[v10]], i32 %[[memptr0]]
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// CHECK: %[[v11:.*]] = bitcast i8* %[[offset]] to i32*
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// CHECK: %[[v12:.*]] = load i32, i32* %[[v11]]
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// CHECK: ret i32 %[[v12]]
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// CHECK: }
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// A two-field data memptr on x64 gets coerced to i64 and is passed in a
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// register or memory.
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// X64-LABEL: define i32 @"\01?loadDataMemberPointerVirtual@@YAHPEAUVirtual@@PEQ1@H@Z"
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// X64: (%struct.Virtual* %o, i64 %memptr.coerce)
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}
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int loadDataMemberPointerUnspecified(Unspecified *o, int Unspecified::*memptr) {
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return o->*memptr;
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// Test that we can unpack this aggregate member pointer and load the member
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// data pointer.
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// CHECK: define i32 @"\01?loadDataMemberPointerUnspecified@@YAHPAUUnspecified@@PQ1@H@Z"{{.*}} {
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// CHECK: %[[o:.*]] = load %{{.*}}*, %{{.*}}** %{{.*}}, align 4
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// CHECK: %[[memptr:.*]] = load { i32, i32, i32 }, { i32, i32, i32 }* %{{.*}}, align 8
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// CHECK: %[[memptr0:.*]] = extractvalue { i32, i32, i32 } %[[memptr:.*]], 0
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// CHECK: %[[memptr1:.*]] = extractvalue { i32, i32, i32 } %[[memptr:.*]], 1
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// CHECK: %[[memptr2:.*]] = extractvalue { i32, i32, i32 } %[[memptr:.*]], 2
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// CHECK: %[[base:.*]] = bitcast %{{.*}}* %[[o]] to i8*
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// CHECK: %[[is_vbase:.*]] = icmp ne i32 %[[memptr2]], 0
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// CHECK: br i1 %[[is_vbase]], label %[[vadjust:.*]], label %[[skip:.*]]
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//
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// CHECK: [[vadjust]]
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// CHECK: %[[vbptr:.*]] = getelementptr inbounds i8, i8* %[[base]], i32 %[[memptr1]]
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// CHECK: %[[vbptr_a:.*]] = bitcast i8* %[[vbptr]] to i32**
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// CHECK: %[[vbtable:.*]] = load i32*, i32** %[[vbptr_a:.*]]
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// CHECK: %[[memptr2_shr:.*]] = ashr exact i32 %[[memptr2]], 2
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// CHECK: %[[v7:.*]] = getelementptr inbounds i32, i32* %[[vbtable]], i32 %[[memptr2_shr]]
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// CHECK: %[[vbase_offs:.*]] = load i32, i32* %[[v7]]
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// CHECK: %[[base_adj:.*]] = getelementptr inbounds i8, i8* %[[vbptr]], i32 %[[vbase_offs]]
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//
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// CHECK: [[skip]]
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// CHECK: %[[new_base:.*]] = phi i8* [ %[[base]], %{{.*}} ], [ %[[base_adj]], %[[vadjust]] ]
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// CHECK: %[[offset:.*]] = getelementptr inbounds i8, i8* %[[new_base]], i32 %[[memptr0]]
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// CHECK: %[[v11:.*]] = bitcast i8* %[[offset]] to i32*
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// CHECK: %[[v12:.*]] = load i32, 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, 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, i8* %{{.*}}, i32 0
|
|
// CHECK: %[[vbptr_a:.*]] = bitcast i8* %[[vbptr]] to i32**
|
|
// CHECK: %[[vbtable:.*]] = load i32*, i32** %[[vbptr_a:.*]]
|
|
// CHECK: %[[memptr2_shr:.*]] = ashr exact i32 %[[memptr2]], 2
|
|
// CHECK: %[[v7:.*]] = getelementptr inbounds i32, i32* %[[vbtable]], i32 %[[memptr2_shr]]
|
|
// CHECK: %[[vbase_offs:.*]] = load i32, i32* %[[v7]]
|
|
// CHECK: %[[v10:.*]] = getelementptr inbounds i8, i8* %[[vbptr]], i32 %[[vbase_offs]]
|
|
// CHECK: %[[this_adjusted:.*]] = getelementptr inbounds i8, 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*, 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 }, { 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 }, { 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, 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"*, %"struct.Test3::A"** %{{.*}}, align 4
|
|
// CHECK: %[[mp:.*]] = load i32, i32* %{{.*}}, align 4
|
|
// CHECK: %[[a_i8:.*]] = bitcast %"struct.Test3::A"* %[[a]] to i8*
|
|
// CHECK: getelementptr inbounds i8, 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 (%"struct.Test4::C"*, ...)* @"\01??_9C@Test4@@$BA@AE" to i8*), i32 4 }, { i8*, i32 }* %{{.*}}
|
|
//
|
|
|
|
// CHECK-LABEL: define linkonce_odr x86_thiscallcc void @"\01??_9C@Test4@@$BA@AE"(%"struct.Test4::C"* %this, ...) {{.*}} comdat
|
|
// CHECK-NOT: getelementptr
|
|
// CHECK: load void (%"struct.Test4::C"*, ...)**, void (%"struct.Test4::C"*, ...)*** %{{.*}}
|
|
// CHECK: getelementptr inbounds void (%"struct.Test4::C"*, ...)*, void (%"struct.Test4::C"*, ...)** %{{.*}}, i64 0
|
|
// CHECK-NOT: getelementptr
|
|
// CHECK: musttail call x86_thiscallcc void (%"struct.Test4::C"*, ...)* %
|
|
|
|
}
|
|
|
|
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 pr20007_pragma {
|
|
struct A {
|
|
void f();
|
|
void f(int);
|
|
};
|
|
struct B : public A {};
|
|
void test() { (void)(void (B::*)()) &B::f; }
|
|
#pragma pointers_to_members(full_generality, virtual_inheritance)
|
|
static_assert(sizeof(int B::*) == 4, "");
|
|
static_assert(sizeof(int A::*) == 4, "");
|
|
#pragma pointers_to_members(best_case)
|
|
// CHECK-LABEL: define void @"\01?test@pr20007_pragma@@YAXXZ"
|
|
}
|
|
|
|
namespace pr20007_pragma2 {
|
|
struct A {
|
|
};
|
|
struct B : public A {
|
|
void f();
|
|
};
|
|
void test() { (void)&B::f; }
|
|
#pragma pointers_to_members(full_generality, virtual_inheritance)
|
|
static_assert(sizeof(int B::*) == 4, "");
|
|
static_assert(sizeof(int A::*) == 12, "");
|
|
#pragma pointers_to_members(best_case)
|
|
// CHECK-LABEL: define void @"\01?test@pr20007_pragma2@@YAXXZ"
|
|
}
|
|
|
|
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
|