// RUN: %clang_cc1 -emit-llvm-only -triple i686-pc-win32 -fdump-record-layouts %s 2>/dev/null \ // RUN: | FileCheck %s #pragma pack(push, 8) class B { public: virtual void b(){} int b_field; protected: private: }; class A : public B { public: int a_field; virtual void a(){} char one; protected: private: }; class D { public: virtual void b(){} double a; }; class C : public virtual A, public D, public B { public: double c1_field; int c2_field; double c3_field; int c4_field; virtual void foo(){} virtual void bar(){} protected: private: }; struct BaseStruct { BaseStruct(){} double v0; float v1; C fg; }; struct DerivedStruct : public BaseStruct { int x; }; struct G { int g_field; }; struct H : public G, public virtual D { }; struct I : public virtual D { virtual ~I(){} double q; }; struct K { int k; }; struct L { int l; }; struct M : public virtual K { int m; }; struct N : public L, public M { virtual void f(){} }; struct O : public H, public G { virtual void fo(){} }; struct P : public M, public virtual L { int p; }; struct R {}; class IA { public: virtual ~IA(){} virtual void ia() = 0; }; class ICh : public virtual IA { public: virtual ~ICh(){} virtual void ia(){} virtual void iCh(){} }; struct f { virtual int asd() {return -90;} }; struct s : public virtual f { virtual ~s(){} int r; virtual int asd() {return -9;} }; struct sd : virtual s, virtual ICh { virtual ~sd(){} int q; char y; virtual int asd() {return -1;} }; struct AV { virtual void foo(); }; struct BV : AV { }; struct CV : virtual BV { CV(); virtual void foo(); }; struct DV : BV { }; struct EV : CV, DV { }; #pragma pack(pop) // This needs only for building layouts. // Without this clang doesn`t dump record layouts. int main() { // This avoid "Can't yet mangle constructors!" for MS ABI. C* c; c->foo(); DerivedStruct* v; H* g; BaseStruct* u; I* i; N* n; O* o; P* p; R* r; sd *h; EV *j; return 0; } // CHECK: 0 | class D // CHECK-NEXT: 0 | (D vftable pointer) // CHECK-NEXT: 8 | double a // CHECK-NEXT: sizeof=16, align=8 // CHECK-NEXT: nvsize=16, nvalign=8 // CHECK: %class.D = type { i32 (...)**, double } // CHECK: 0 | class B // CHECK-NEXT: 0 | (B vftable pointer) // CHECK-NEXT: 4 | int b_field // CHECK-NEXT: sizeof=8, align=4 // CHECK-NEXT: nvsize=8, nvalign=4 // CHECK: %class.B = type { i32 (...)**, i32 } // CHECK: 0 | class A // CHECK-NEXT: 0 | class B (primary base) // CHECK-NEXT: 0 | (B vftable pointer) // CHECK-NEXT: 4 | int b_field // CHECK-NEXT: 8 | int a_field // CHECK-NEXT: 12 | char one // CHECK-NEXT: sizeof=16, align=4 // CHECK-NEXT: nvsize=16, nvalign=4 // CHECK: 0 | class C // CHECK-NEXT: 0 | class D (primary base) // CHECK-NEXT: 0 | (D vftable pointer) // CHECK-NEXT: 8 | double a // CHECK-NEXT: 16 | class B (base) // CHECK-NEXT: 16 | (B vftable pointer) // CHECK-NEXT: 20 | int b_field // CHECK-NEXT: 24 | (C vbtable pointer) // CHECK-NEXT: 32 | double c1_field // CHECK-NEXT: 40 | int c2_field // CHECK-NEXT: 48 | double c3_field // CHECK-NEXT: 56 | int c4_field // CHECK-NEXT: 64 | class A (virtual base) // CHECK-NEXT: 64 | class B (primary base) // CHECK-NEXT: 64 | (B vftable pointer) // CHECK-NEXT: 68 | int b_field // CHECK-NEXT: 72 | int a_field // CHECK-NEXT: 76 | char one // CHECK-NEXT: sizeof=80, align=8 // CHECK-NEXT: nvsize=64, nvalign=8 // CHECK: %class.A = type { %class.B, i32, i8 } // CHECK: %class.C = type { %class.D, %class.B, i32*, double, i32, double, i32, [4 x i8], %class.A } // CHECK: %class.C.base = type { %class.D, %class.B, i32*, double, i32, double, i32 } // CHECK: 0 | struct BaseStruct // CHECK-NEXT: 0 | double v0 // CHECK-NEXT: 8 | float v1 // CHECK-NEXT: 16 | class C fg // CHECK-NEXT: 16 | class D (primary base) // CHECK-NEXT: 16 | (D vftable pointer) // CHECK-NEXT: 24 | double a // CHECK-NEXT: 32 | class B (base) // CHECK-NEXT: 32 | (B vftable pointer) // CHECK-NEXT: 36 | int b_field // CHECK-NEXT: 40 | (C vbtable pointer) // CHECK-NEXT: 48 | double c1_field // CHECK-NEXT: 56 | int c2_field // CHECK-NEXT: 64 | double c3_field // CHECK-NEXT: 72 | int c4_field // CHECK-NEXT: 80 | class A (virtual base) // CHECK-NEXT: 80 | class B (primary base) // CHECK-NEXT: 80 | (B vftable pointer) // CHECK-NEXT: 84 | int b_field // CHECK-NEXT: 88 | int a_field // CHECK-NEXT: 92 | char one // CHECK-NEXT: sizeof=96, align=8 // CHECK-NEXT: nvsize=96, nvalign=8 // CHECK: %struct.BaseStruct = type { double, float, %class.C } // CHECK: 0 | struct DerivedStruct // CHECK-NEXT: 0 | struct BaseStruct (base) // CHECK-NEXT: 0 | double v0 // CHECK-NEXT: 8 | float v1 // CHECK-NEXT: 16 | class C fg // CHECK-NEXT: 16 | class D (primary base) // CHECK-NEXT: 16 | (D vftable pointer) // CHECK-NEXT: 24 | double a // CHECK-NEXT: 32 | class B (base) // CHECK-NEXT: 32 | (B vftable pointer) // CHECK-NEXT: 36 | int b_field // CHECK-NEXT: 40 | (C vbtable pointer) // CHECK-NEXT: 48 | double c1_field // CHECK-NEXT: 56 | int c2_field // CHECK-NEXT: 64 | double c3_field // CHECK-NEXT: 72 | int c4_field // CHECK-NEXT: 80 | class A (virtual base) // CHECK-NEXT: 80 | class B (primary base) // CHECK-NEXT: 80 | (B vftable pointer) // CHECK-NEXT: 84 | int b_field // CHECK-NEXT: 88 | int a_field // CHECK-NEXT: 92 | char one // CHECK-NEXT: 96 | int x // CHECK-NEXT: sizeof=104, align=8 // CHECK-NEXT: nvsize=104, nvalign=8 // CHECK: %struct.DerivedStruct = type { %struct.BaseStruct, i32 } // CHECK: 0 | struct G // CHECK-NEXT: 0 | int g_field // CHECK-NEXT: sizeof=4, align=4 // CHECK-NEXT: nvsize=4, nvalign=4 // CHECK: 0 | struct H // CHECK-NEXT: 0 | struct G (base) // CHECK-NEXT: 0 | int g_field // CHECK-NEXT: 4 | (H vbtable pointer) // CHECK-NEXT: 8 | class D (virtual base) // CHECK-NEXT: 8 | (D vftable pointer) // CHECK-NEXT: 16 | double a // CHECK-NEXT: sizeof=24, align=8 // CHECK-NEXT: nvsize=8, nvalign=8 // CHECK: %struct.H = type { %struct.G, i32*, %class.D } // CHECK: 0 | struct I // CHECK-NEXT: 0 | (I vftable pointer) // CHECK-NEXT: 8 | (I vbtable pointer) // CHECK-NEXT: 16 | double q // CHECK-NEXT: 24 | class D (virtual base) // CHECK-NEXT: 24 | (D vftable pointer) // CHECK-NEXT: 32 | double a // CHECK-NEXT: sizeof=40, align=8 // CHECK-NEXT: nvsize=24, nvalign=8 // CHECK: %struct.I = type { i32 (...)**, [4 x i8], i32*, double, %class.D } // CHECK: %struct.I.base = type { i32 (...)**, [4 x i8], i32*, double } // CHECK: 0 | struct L // CHECK-NEXT: 0 | int l // CHECK-NEXT: sizeof=4, align=4 // CHECK-NEXT: nvsize=4, nvalign=4 // CHECK: 0 | struct K // CHECK-NEXT: 0 | int k // CHECK-NEXT: sizeof=4, align=4 // CHECK-NEXT: nvsize=4, nvalign=4 // CHECK: 0 | struct M // CHECK-NEXT: 0 | (M vbtable pointer) // CHECK-NEXT: 4 | int m // CHECK-NEXT: 8 | struct K (virtual base) // CHECK-NEXT: 8 | int k // CHECK-NEXT: sizeof=12, align=4 //CHECK: %struct.M = type { i32*, i32, %struct.K } //CHECK: %struct.M.base = type { i32*, i32 } // CHECK: 0 | struct N // CHECK-NEXT: 0 | (N vftable pointer) // CHECK-NEXT: 4 | struct L (base) // CHECK-NEXT: 4 | int l // CHECK-NEXT: 8 | struct M (base) // CHECK-NEXT: 8 | (M vbtable pointer) // CHECK-NEXT: 12 | int m // CHECK-NEXT: 16 | struct K (virtual base) // CHECK-NEXT: 16 | int k // CHECK-NEXT: sizeof=20, align=4 // CHECK-NEXT: nvsize=16, nvalign=4 //CHECK: %struct.N = type { i32 (...)**, %struct.L, %struct.M.base, %struct.K } // CHECK: 0 | struct O // CHECK-NEXT: 0 | (O vftable pointer) // CHECK-NEXT: 8 | struct H (base) // CHECK-NEXT: 8 | struct G (base) // CHECK-NEXT: 8 | int g_field // CHECK-NEXT: 12 | (H vbtable pointer) // CHECK-NEXT: 16 | struct G (base) // CHECK-NEXT: 16 | int g_field // CHECK-NEXT: 24 | class D (virtual base) // CHECK-NEXT: 24 | (D vftable pointer) // CHECK-NEXT: 32 | double a // CHECK-NEXT: | [sizeof=40, align=8 // CHECK-NEXT: | nvsize=24, nvalign=8] // CHECK: struct.O = type { i32 (...)**, [4 x i8], %struct.H.base, %struct.G, %class.D } // CHECK: struct.O.base = type { i32 (...)**, [4 x i8], %struct.H.base, %struct.G, [4 x i8] } // CHECK: 0 | struct P // CHECK-NEXT: 0 | struct M (base) // CHECK-NEXT: 0 | (M vbtable pointer) // CHECK-NEXT: 4 | int m // CHECK-NEXT: 8 | int p // CHECK-NEXT: 12 | struct K (virtual base) // CHECK-NEXT: 12 | int k // CHECK-NEXT: 16 | struct L (virtual base) // CHECK-NEXT: 16 | int l // CHECK-NEXT: sizeof=20, align=4 // CHECK-NEXT: nvsize=12, nvalign=4 //CHECK: %struct.P = type { %struct.M.base, i32, %struct.K, %struct.L } // CHECK: 0 | struct R (empty) // CHECK-NEXT: sizeof=1, align=1 // CHECK-NEXT: nvsize=0, nvalign=1 //CHECK: %struct.R = type { i8 } // CHECK: 0 | struct f // CHECK-NEXT: 0 | (f vftable pointer) // CHECK-NEXT: sizeof=4, align=4 // CHECK-NEXT: nvsize=4, nvalign=4 // CHECK: 0 | struct s // CHECK-NEXT: 0 | (s vftable pointer) // CHECK-NEXT: 4 | (s vbtable pointer) // CHECK-NEXT: 8 | int r // CHECK-NEXT: 12 | (vtordisp for vbase f) // CHECK-NEXT: 16 | struct f (virtual base) // CHECK-NEXT: 16 | (f vftable pointer) // CHECK-NEXT: sizeof=20, align=4 // CHECK-NEXT: nvsize=12, nvalign=4 // CHECK: 0 | class IA // CHECK-NEXT: 0 | (IA vftable pointer) // CHECK-NEXT: sizeof=4, align=4 // CHECK-NEXT: nvsize=4, nvalign=4 // CHECK: 0 | class ICh // CHECK-NEXT: 0 | (ICh vftable pointer) // CHECK-NEXT: 4 | (ICh vbtable pointer) // CHECK-NEXT: 8 | (vtordisp for vbase IA) // CHECK-NEXT: 12 | class IA (virtual base) // CHECK-NEXT: 12 | (IA vftable pointer) // CHECK-NEXT: sizeof=16, align=4 // CHECK-NEXT: nvsize=8, nvalign=4 // CHECK: 0 | struct sd // CHECK-NEXT: 0 | (sd vbtable pointer) // CHECK-NEXT: 4 | int q // CHECK-NEXT: 8 | char y // CHECK-NEXT: 12 | (vtordisp for vbase f) // CHECK-NEXT: 16 | struct f (virtual base) // CHECK-NEXT: 16 | (f vftable pointer) // CHECK-NEXT: 20 | struct s (virtual base) // CHECK-NEXT: 20 | (s vftable pointer) // CHECK-NEXT: 24 | (s vbtable pointer) // CHECK-NEXT: 28 | int r // CHECK-NEXT: 32 | (vtordisp for vbase IA) // CHECK-NEXT: 36 | class IA (virtual base) // CHECK-NEXT: 36 | (IA vftable pointer) // CHECK-NEXT: 40 | class ICh (virtual base) // CHECK-NEXT: 40 | (ICh vftable pointer) // CHECK-NEXT: 44 | (ICh vbtable pointer) // CHECK-NEXT: sizeof=48, align=4 // CHECK-NEXT: nvsize=12, nvalign=4 // CHECK: %struct.f = type { i32 (...)** } // CHECK: %struct.s = type { i32 (...)**, i32*, i32, i32, %struct.f } // CHECK: %class.IA = type { i32 (...)** } // CHECK: %class.ICh = type { i32 (...)**, i32*, i32, %class.IA } // CHECK: %struct.sd = type { i32*, i32, i8, i32, %struct.f, %struct.s.base, i32, %class.IA, %class.ICh.base } // CHECK: 0 | struct AV // CHECK-NEXT: 0 | (AV vftable pointer) // CHECK-NEXT: sizeof=4, align=4 // CHECK-NEXT: nvsize=4, nvalign=4 // CHECK: 0 | struct BV // CHECK-NEXT: 0 | struct AV (primary base) // CHECK-NEXT: 0 | (AV vftable pointer) // CHECK-NEXT: sizeof=4, align=4 // CHECK-NEXT: nvsize=4, nvalign=4 // CHECK: 0 | struct CV // CHECK-NEXT: 0 | (CV vbtable pointer) // CHECK-NEXT: 4 | (vtordisp for vbase BV) // CHECK-NEXT: 8 | struct BV (virtual base) // CHECK-NEXT: 8 | struct AV (primary base) // CHECK-NEXT: 8 | (AV vftable pointer) // CHECK-NEXT: sizeof=12, align=4 // CHECK-NEXT: nvsize=4, nvalign=4 // CHECK: %struct.AV = type { i32 (...)** } // CHECK: %struct.BV = type { %struct.AV } // CHECK: %struct.CV = type { i32*, i32, %struct.BV } // CHECK: %struct.CV.base = type { i32* } // CHECK: 0 | struct DV // CHECK-NEXT: 0 | struct BV (primary base) // CHECK-NEXT: 0 | struct AV (primary base) // CHECK-NEXT: 0 | (AV vftable pointer) // CHECK-NEXT: sizeof=4, align=4 // CHECK-NEXT: nvsize=4, nvalign=4 // CHECK: %struct.DV = type { %struct.BV } // CHECK: 0 | struct EV // CHECK-NEXT: 0 | struct DV (primary base) // CHECK-NEXT: 0 | struct BV (primary base) // CHECK-NEXT: 0 | struct AV (primary base) // CHECK-NEXT: 0 | (AV vftable pointer) // CHECK-NEXT: 4 | struct CV (base) // CHECK-NEXT: 4 | (CV vbtable pointer) // CHECK-NEXT: 8 | (vtordisp for vbase BV) // CHECK-NEXT: 12 | struct BV (virtual base) // CHECK-NEXT: 12 | struct AV (primary base) // CHECK-NEXT: 12 | (AV vftable pointer) // CHECK-NEXT: sizeof=16, align=4 // CHECK-NEXT: nvsize=8, nvalign=4 // CHECK: %struct.EV = type { %struct.DV, %struct.CV.base, i32, %struct.BV } // CHECK: %struct.EV.base = type { %struct.DV, %struct.CV.base } // Overriding a method means that all the vbases containing that // method need a vtordisp. Note: this code will cause an error in cl.exe. namespace test1 { struct A { virtual void foo(); }; struct B : A {}; struct C : virtual A, virtual B { C(); virtual void foo(); }; void test() { C *c; } // CHECK: 0 | struct test1::C // CHECK-NEXT: 0 | (C vbtable pointer) // CHECK-NEXT: 4 | (vtordisp for vbase A) // CHECK-NEXT: 8 | struct test1::A (virtual base) // CHECK-NEXT: 8 | (A vftable pointer) // CHECK-NEXT: 12 | (vtordisp for vbase B) // CHECK-NEXT: 16 | struct test1::B (virtual base) // CHECK-NEXT: 16 | struct test1::A (primary base) // CHECK-NEXT: 16 | (A vftable pointer) // CHECK-NEXT: sizeof=20, align=4 // CHECK-NEXT: nvsize=4, nvalign=4 }