458 lines
16 KiB
C++
458 lines
16 KiB
C++
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// RUN: %clang_cc1 -fno-rtti -fms-extensions -emit-llvm-only -triple i686-pc-win32 -fdump-record-layouts -fsyntax-only %s 2>&1 \
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// RUN: | FileCheck %s
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// RUN: %clang_cc1 -fno-rtti -fms-extensions -emit-llvm-only -triple x86_64-pc-win32 -fdump-record-layouts -fsyntax-only %s 2>/dev/null \
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// RUN: | FileCheck %s -check-prefix CHECK-X64
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extern "C" int printf(const char *fmt, ...);
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struct B0 {
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int a;
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B0() : a(0xf00000B0) {}
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virtual void f() { printf("B0"); }
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};
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struct __declspec(align(16)) B1 {
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int a;
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B1() : a(0xf00000B1) {}
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virtual void f() { printf("B1"); }
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};
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struct __declspec(align(16)) Align16 {};
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struct __declspec(align(32)) Align32 {};
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struct VAlign16 : virtual Align16 {};
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struct VAlign32 : virtual Align32 {};
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struct A : virtual B0, virtual B1 {
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int a;
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A() : a(0xf000000A) {}
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virtual void f() { printf("A"); }
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virtual void g() { printf("A"); }
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};
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// CHECK: *** Dumping AST Record Layout
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// CHECK: *** Dumping AST Record Layout
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// CHECK: *** Dumping AST Record Layout
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// CHECK-NEXT: 0 | struct A
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// CHECK-NEXT: 0 | (A vftable pointer)
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// CHECK-NEXT: 4 | (A vbtable pointer)
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// CHECK-NEXT: 8 | int a
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// CHECK-NEXT: 16 | (vtordisp for vbase B0)
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// CHECK-NEXT: 20 | struct B0 (virtual base)
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// CHECK-NEXT: 20 | (B0 vftable pointer)
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// CHECK-NEXT: 24 | int a
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// CHECK-NEXT: 44 | (vtordisp for vbase B1)
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// CHECK-NEXT: 48 | struct B1 (virtual base)
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// CHECK-NEXT: 48 | (B1 vftable pointer)
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// CHECK-NEXT: 52 | int a
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// CHECK-NEXT: | [sizeof=64, align=16
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// CHECK-NEXT: | nvsize=12, nvalign=16]
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// CHECK-X64: *** Dumping AST Record Layout
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// CHECK-X64: *** Dumping AST Record Layout
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// CHECK-X64: *** Dumping AST Record Layout
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// CHECK-X64-NEXT: 0 | struct A
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// CHECK-X64-NEXT: 0 | (A vftable pointer)
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// CHECK-X64-NEXT: 8 | (A vbtable pointer)
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// CHECK-X64-NEXT: 16 | int a
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// CHECK-X64-NEXT: 36 | (vtordisp for vbase B0)
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// CHECK-X64-NEXT: 40 | struct B0 (virtual base)
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// CHECK-X64-NEXT: 40 | (B0 vftable pointer)
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// CHECK-X64-NEXT: 48 | int a
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// CHECK-X64-NEXT: 76 | (vtordisp for vbase B1)
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// CHECK-X64-NEXT: 80 | struct B1 (virtual base)
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// CHECK-X64-NEXT: 80 | (B1 vftable pointer)
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// CHECK-X64-NEXT: 88 | int a
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// CHECK-X64-NEXT: | [sizeof=96, align=16
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// CHECK-X64-NEXT: | nvsize=24, nvalign=16]
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struct C : virtual B0, virtual B1, VAlign32 {
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int a;
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C() : a(0xf000000C) {}
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virtual void f() { printf("C"); }
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virtual void g() { printf("C"); }
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};
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// CHECK: *** Dumping AST Record Layout
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// CHECK: *** Dumping AST Record Layout
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// CHECK: *** Dumping AST Record Layout
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// CHECK-NEXT: 0 | struct C
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// CHECK-NEXT: 0 | (C vftable pointer)
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// CHECK-NEXT: 32 | struct VAlign32 (base)
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// CHECK-NEXT: 32 | (VAlign32 vbtable pointer)
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// CHECK-NEXT: 36 | int a
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// CHECK-NEXT: 64 | (vtordisp for vbase B0)
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// CHECK-NEXT: 68 | struct B0 (virtual base)
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// CHECK-NEXT: 68 | (B0 vftable pointer)
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// CHECK-NEXT: 72 | int a
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// CHECK-NEXT: 108 | (vtordisp for vbase B1)
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// CHECK-NEXT: 112 | struct B1 (virtual base)
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// CHECK-NEXT: 112 | (B1 vftable pointer)
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// CHECK-NEXT: 116 | int a
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// CHECK-NEXT: 128 | struct Align32 (virtual base) (empty)
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// CHECK-NEXT: | [sizeof=128, align=32
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// CHECK-NEXT: | nvsize=64, nvalign=32]
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// CHECK-X64: *** Dumping AST Record Layout
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// CHECK-X64: *** Dumping AST Record Layout
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// CHECK-X64: *** Dumping AST Record Layout
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// CHECK-X64-NEXT: 0 | struct C
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// CHECK-X64-NEXT: 0 | (C vftable pointer)
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// CHECK-X64-NEXT: 32 | struct VAlign32 (base)
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// CHECK-X64-NEXT: 32 | (VAlign32 vbtable pointer)
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// CHECK-X64-NEXT: 40 | int a
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// CHECK-X64-NEXT: 68 | (vtordisp for vbase B0)
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// CHECK-X64-NEXT: 72 | struct B0 (virtual base)
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// CHECK-X64-NEXT: 72 | (B0 vftable pointer)
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// CHECK-X64-NEXT: 80 | int a
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// CHECK-X64-NEXT: 108 | (vtordisp for vbase B1)
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// CHECK-X64-NEXT: 112 | struct B1 (virtual base)
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// CHECK-X64-NEXT: 112 | (B1 vftable pointer)
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// CHECK-X64-NEXT: 120 | int a
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// CHECK-X64-NEXT: 128 | struct Align32 (virtual base) (empty)
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// CHECK-X64-NEXT: | [sizeof=128, align=32
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// CHECK-X64-NEXT: | nvsize=64, nvalign=32]
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struct __declspec(align(32)) D : virtual B0, virtual B1 {
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int a;
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D() : a(0xf000000D) {}
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virtual void f() { printf("D"); }
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virtual void g() { printf("D"); }
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};
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// CHECK: *** Dumping AST Record Layout
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// CHECK-NEXT: 0 | struct D
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// CHECK-NEXT: 0 | (D vftable pointer)
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// CHECK-NEXT: 4 | (D vbtable pointer)
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// CHECK-NEXT: 8 | int a
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// CHECK-NEXT: 32 | (vtordisp for vbase B0)
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// CHECK-NEXT: 36 | struct B0 (virtual base)
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// CHECK-NEXT: 36 | (B0 vftable pointer)
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// CHECK-NEXT: 40 | int a
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// CHECK-NEXT: 76 | (vtordisp for vbase B1)
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// CHECK-NEXT: 80 | struct B1 (virtual base)
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// CHECK-NEXT: 80 | (B1 vftable pointer)
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// CHECK-NEXT: 84 | int a
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// CHECK-NEXT: | [sizeof=96, align=32
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// CHECK-NEXT: | nvsize=12, nvalign=32]
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// CHECK-X64: *** Dumping AST Record Layout
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// CHECK-X64-NEXT: 0 | struct D
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// CHECK-X64-NEXT: 0 | (D vftable pointer)
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// CHECK-X64-NEXT: 8 | (D vbtable pointer)
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// CHECK-X64-NEXT: 16 | int a
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// CHECK-X64-NEXT: 36 | (vtordisp for vbase B0)
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// CHECK-X64-NEXT: 40 | struct B0 (virtual base)
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// CHECK-X64-NEXT: 40 | (B0 vftable pointer)
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// CHECK-X64-NEXT: 48 | int a
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// CHECK-X64-NEXT: 76 | (vtordisp for vbase B1)
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// CHECK-X64-NEXT: 80 | struct B1 (virtual base)
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// CHECK-X64-NEXT: 80 | (B1 vftable pointer)
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// CHECK-X64-NEXT: 88 | int a
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// CHECK-X64-NEXT: | [sizeof=96, align=32
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// CHECK-X64-NEXT: | nvsize=24, nvalign=32]
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struct AT {
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virtual ~AT(){}
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};
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struct CT : virtual AT {
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virtual ~CT();
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};
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CT::~CT(){}
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// CHECK: *** Dumping AST Record Layout
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// CHECK: *** Dumping AST Record Layout
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// CHECK-NEXT: 0 | struct CT
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// CHECK-NEXT: 0 | (CT vbtable pointer)
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// CHECK-NEXT: 4 | struct AT (virtual base)
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// CHECK-NEXT: 4 | (AT vftable pointer)
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// CHECK-NEXT: | [sizeof=8, align=4
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// CHECK-NEXT: | nvsize=4, nvalign=4]
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// CHECK-X64: *** Dumping AST Record Layout
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// CHECK-X64: *** Dumping AST Record Layout
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// CHECK-X64-NEXT: 0 | struct CT
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// CHECK-X64-NEXT: 0 | (CT vbtable pointer)
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// CHECK-X64-NEXT: 8 | struct AT (virtual base)
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// CHECK-X64-NEXT: 8 | (AT vftable pointer)
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// CHECK-X64-NEXT: | [sizeof=16, align=8
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// CHECK-X64-NEXT: | nvsize=8, nvalign=8]
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struct XA {
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XA() { printf("XA"); }
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long long ll;
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};
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struct XB : XA {
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XB() { printf("XB"); }
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virtual void foo() {}
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int b;
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};
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struct XC : virtual XB {
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XC() { printf("XC"); }
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virtual void foo() {}
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};
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// CHECK: *** Dumping AST Record Layout
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// CHECK: *** Dumping AST Record Layout
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// CHECK: *** Dumping AST Record Layout
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// CHECK-NEXT: 0 | struct XC
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// CHECK-NEXT: 0 | (XC vbtable pointer)
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// CHECK-NEXT: 4 | (vtordisp for vbase XB)
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// CHECK-NEXT: 8 | struct XB (virtual base)
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// CHECK-NEXT: 8 | (XB vftable pointer)
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// CHECK-NEXT: 16 | struct XA (base)
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// CHECK-NEXT: 16 | long long ll
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// CHECK-NEXT: 24 | int b
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// CHECK-NEXT: | [sizeof=32, align=8
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// CHECK-NEXT: | nvsize=4, nvalign=8]
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// CHECK-X64: *** Dumping AST Record Layout
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// CHECK-X64: *** Dumping AST Record Layout
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// CHECK-X64: *** Dumping AST Record Layout
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// CHECK-X64-NEXT: 0 | struct XC
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// CHECK-X64-NEXT: 0 | (XC vbtable pointer)
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// CHECK-X64-NEXT: 12 | (vtordisp for vbase XB)
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// CHECK-X64-NEXT: 16 | struct XB (virtual base)
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// CHECK-X64-NEXT: 16 | (XB vftable pointer)
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// CHECK-X64-NEXT: 24 | struct XA (base)
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// CHECK-X64-NEXT: 24 | long long ll
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// CHECK-X64-NEXT: 32 | int b
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// CHECK-X64-NEXT: | [sizeof=40, align=8
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// CHECK-X64-NEXT: | nvsize=8, nvalign=8]
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namespace pragma_test1 {
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// No overrides means no vtordisps by default.
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struct A { virtual ~A(); virtual void foo(); int a; };
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struct B : virtual A { virtual ~B(); virtual void bar(); int b; };
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struct C : virtual B { int c; };
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// CHECK: *** Dumping AST Record Layout
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// CHECK: *** Dumping AST Record Layout
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// CHECK: *** Dumping AST Record Layout
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// CHECK-NEXT: 0 | struct pragma_test1::C
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// CHECK-NEXT: 0 | (C vbtable pointer)
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// CHECK-NEXT: 4 | int c
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// CHECK-NEXT: 8 | struct pragma_test1::A (virtual base)
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// CHECK-NEXT: 8 | (A vftable pointer)
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// CHECK-NEXT: 12 | int a
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// CHECK-NEXT: 16 | struct pragma_test1::B (virtual base)
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// CHECK-NEXT: 16 | (B vftable pointer)
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// CHECK-NEXT: 20 | (B vbtable pointer)
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// CHECK-NEXT: 24 | int b
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// CHECK-NEXT: | [sizeof=28, align=4
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// CHECK-NEXT: | nvsize=8, nvalign=4]
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// CHECK-X64: *** Dumping AST Record Layout
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// CHECK-X64: *** Dumping AST Record Layout
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// CHECK-X64: *** Dumping AST Record Layout
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}
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namespace pragma_test2 {
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struct A { virtual ~A(); virtual void foo(); int a; };
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#pragma vtordisp(push,2)
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struct B : virtual A { virtual ~B(); virtual void bar(); int b; };
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struct C : virtual B { int c; };
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#pragma vtordisp(pop)
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// CHECK: *** Dumping AST Record Layout
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// CHECK: *** Dumping AST Record Layout
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// CHECK: *** Dumping AST Record Layout
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// CHECK-NEXT: 0 | struct pragma_test2::C
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// CHECK-NEXT: 0 | (C vbtable pointer)
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// CHECK-NEXT: 4 | int c
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// CHECK-NEXT: 8 | (vtordisp for vbase A)
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// CHECK-NEXT: 12 | struct pragma_test2::A (virtual base)
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// CHECK-NEXT: 12 | (A vftable pointer)
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// CHECK-NEXT: 16 | int a
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// By adding a virtual method and vftable to B, now we need a vtordisp.
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// CHECK-NEXT: 20 | (vtordisp for vbase B)
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// CHECK-NEXT: 24 | struct pragma_test2::B (virtual base)
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// CHECK-NEXT: 24 | (B vftable pointer)
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// CHECK-NEXT: 28 | (B vbtable pointer)
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// CHECK-NEXT: 32 | int b
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// CHECK-NEXT: | [sizeof=36, align=4
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// CHECK-NEXT: | nvsize=8, nvalign=4]
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// CHECK-X64: *** Dumping AST Record Layout
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// CHECK-X64: *** Dumping AST Record Layout
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// CHECK-X64: *** Dumping AST Record Layout
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}
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namespace pragma_test3 {
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struct A { virtual ~A(); virtual void foo(); int a; };
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#pragma vtordisp(push,2)
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struct B : virtual A { virtual ~B(); virtual void foo(); int b; };
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struct C : virtual B { int c; };
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#pragma vtordisp(pop)
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// CHECK: *** Dumping AST Record Layout
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// CHECK: *** Dumping AST Record Layout
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// CHECK: *** Dumping AST Record Layout
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// CHECK-NEXT: 0 | struct pragma_test3::C
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// CHECK-NEXT: 0 | (C vbtable pointer)
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// CHECK-NEXT: 4 | int c
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// CHECK-NEXT: 8 | (vtordisp for vbase A)
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// CHECK-NEXT: 12 | struct pragma_test3::A (virtual base)
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// CHECK-NEXT: 12 | (A vftable pointer)
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// CHECK-NEXT: 16 | int a
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// No vtordisp before B! It doesn't have its own vftable.
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// CHECK-NEXT: 20 | struct pragma_test3::B (virtual base)
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// CHECK-NEXT: 20 | (B vbtable pointer)
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// CHECK-NEXT: 24 | int b
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// CHECK-NEXT: | [sizeof=28, align=4
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// CHECK-NEXT: | nvsize=8, nvalign=4]
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// CHECK-X64: *** Dumping AST Record Layout
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// CHECK-X64: *** Dumping AST Record Layout
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// CHECK-X64: *** Dumping AST Record Layout
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}
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namespace pragma_test4 {
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struct A {
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A();
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virtual void foo();
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int a;
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};
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// Make sure the pragma applies to class template decls before they've been
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// instantiated.
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#pragma vtordisp(push,2)
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template <typename T>
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struct B : virtual A {
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B();
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virtual ~B();
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virtual void bar();
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T b;
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};
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#pragma vtordisp(pop)
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struct C : virtual B<int> { int c; };
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// CHECK: *** Dumping AST Record Layout
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// CHECK: *** Dumping AST Record Layout
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// CHECK: *** Dumping AST Record Layout
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// CHECK-NEXT: 0 | struct pragma_test4::C
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// CHECK-NEXT: 0 | (C vbtable pointer)
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// CHECK-NEXT: 4 | int c
|
||
|
|
// Pragma applies to B, which has vbase A.
|
||
|
|
// CHECK-NEXT: 8 | (vtordisp for vbase A)
|
||
|
|
// CHECK-NEXT: 12 | struct pragma_test4::A (virtual base)
|
||
|
|
// CHECK-NEXT: 12 | (A vftable pointer)
|
||
|
|
// CHECK-NEXT: 16 | int a
|
||
|
|
// Pragma does not apply to C, and B doesn't usually need a vtordisp in C.
|
||
|
|
// CHECK-NEXT: 20 | struct pragma_test4::B<int> (virtual base)
|
||
|
|
// CHECK-NEXT: 20 | (B vftable pointer)
|
||
|
|
// CHECK-NEXT: 24 | (B vbtable pointer)
|
||
|
|
// CHECK-NEXT: 28 | int b
|
||
|
|
// CHECK-NEXT: | [sizeof=32, align=4
|
||
|
|
// CHECK-NEXT: | nvsize=8, nvalign=4]
|
||
|
|
// CHECK-X64: *** Dumping AST Record Layout
|
||
|
|
// CHECK-X64: *** Dumping AST Record Layout
|
||
|
|
// CHECK-X64: *** Dumping AST Record Layout
|
||
|
|
}
|
||
|
|
|
||
|
|
struct GA {
|
||
|
|
virtual void fun() {}
|
||
|
|
};
|
||
|
|
struct GB: public GA {};
|
||
|
|
struct GC: public virtual GA {
|
||
|
|
virtual void fun() {}
|
||
|
|
GC() {}
|
||
|
|
};
|
||
|
|
struct GD: public virtual GC, public virtual GB {};
|
||
|
|
|
||
|
|
// CHECK: *** Dumping AST Record Layout
|
||
|
|
// CHECK: *** Dumping AST Record Layout
|
||
|
|
// CHECK: *** Dumping AST Record Layout
|
||
|
|
// CHECK: *** Dumping AST Record Layout
|
||
|
|
// CHECK-NEXT: 0 | struct GD
|
||
|
|
// CHECK-NEXT: 0 | (GD vbtable pointer)
|
||
|
|
// CHECK-NEXT: 4 | (vtordisp for vbase GA)
|
||
|
|
// CHECK-NEXT: 8 | struct GA (virtual base)
|
||
|
|
// CHECK-NEXT: 8 | (GA vftable pointer)
|
||
|
|
// CHECK-NEXT: 12 | struct GC (virtual base)
|
||
|
|
// CHECK-NEXT: 12 | (GC vbtable pointer)
|
||
|
|
// CHECK-NEXT: 16 | struct GB (virtual base)
|
||
|
|
// CHECK-NEXT: 16 | struct GA (primary base)
|
||
|
|
// CHECK-NEXT: 16 | (GA vftable pointer)
|
||
|
|
// CHECK-NEXT: | [sizeof=20, align=4
|
||
|
|
// CHECK-NEXT: | nvsize=4, nvalign=4]
|
||
|
|
// CHECK-X64: *** Dumping AST Record Layout
|
||
|
|
// CHECK-X64: *** Dumping AST Record Layout
|
||
|
|
// CHECK-X64: *** Dumping AST Record Layout
|
||
|
|
// CHECK-X64: *** Dumping AST Record Layout
|
||
|
|
// CHECK-X64-NEXT: 0 | struct GD
|
||
|
|
// CHECK-X64-NEXT: 0 | (GD vbtable pointer)
|
||
|
|
// CHECK-X64-NEXT: 12 | (vtordisp for vbase GA)
|
||
|
|
// CHECK-X64-NEXT: 16 | struct GA (virtual base)
|
||
|
|
// CHECK-X64-NEXT: 16 | (GA vftable pointer)
|
||
|
|
// CHECK-X64-NEXT: 24 | struct GC (virtual base)
|
||
|
|
// CHECK-X64-NEXT: 24 | (GC vbtable pointer)
|
||
|
|
// CHECK-X64-NEXT: 32 | struct GB (virtual base)
|
||
|
|
// CHECK-X64-NEXT: 32 | struct GA (primary base)
|
||
|
|
// CHECK-X64-NEXT: 32 | (GA vftable pointer)
|
||
|
|
// CHECK-X64-NEXT: | [sizeof=40, align=8
|
||
|
|
// CHECK-X64-NEXT: | nvsize=8, nvalign=8]
|
||
|
|
|
||
|
|
struct HA {
|
||
|
|
virtual void fun() {}
|
||
|
|
};
|
||
|
|
#pragma vtordisp(push, 2)
|
||
|
|
struct HB : virtual HA {};
|
||
|
|
#pragma vtordisp(pop)
|
||
|
|
#pragma vtordisp(push, 0)
|
||
|
|
struct HC : virtual HB {};
|
||
|
|
#pragma vtordisp(pop)
|
||
|
|
|
||
|
|
// CHECK: *** Dumping AST Record Layout
|
||
|
|
// CHECK: *** Dumping AST Record Layout
|
||
|
|
// CHECK: *** Dumping AST Record Layout
|
||
|
|
// CHECK-NEXT: 0 | struct HC
|
||
|
|
// CHECK-NEXT: 0 | (HC vbtable pointer)
|
||
|
|
// CHECK-NEXT: 4 | (vtordisp for vbase HA)
|
||
|
|
// CHECK-NEXT: 8 | struct HA (virtual base)
|
||
|
|
// CHECK-NEXT: 8 | (HA vftable pointer)
|
||
|
|
// CHECK-NEXT: 12 | struct HB (virtual base)
|
||
|
|
// CHECK-NEXT: 12 | (HB vbtable pointer)
|
||
|
|
// CHECK-NEXT: | [sizeof=16, align=4
|
||
|
|
// CHECK-NEXT: | nvsize=4, nvalign=4]
|
||
|
|
// CHECK-X64: *** Dumping AST Record Layout
|
||
|
|
// CHECK-X64: *** Dumping AST Record Layout
|
||
|
|
// CHECK-X64: *** Dumping AST Record Layout
|
||
|
|
// CHECK-X64-NEXT: 0 | struct HC
|
||
|
|
// CHECK-X64-NEXT: 0 | (HC vbtable pointer)
|
||
|
|
// CHECK-X64-NEXT: 12 | (vtordisp for vbase HA)
|
||
|
|
// CHECK-X64-NEXT: 16 | struct HA (virtual base)
|
||
|
|
// CHECK-X64-NEXT: 16 | (HA vftable pointer)
|
||
|
|
// CHECK-X64-NEXT: 24 | struct HB (virtual base)
|
||
|
|
// CHECK-X64-NEXT: 24 | (HB vbtable pointer)
|
||
|
|
// CHECK-X64-NEXT: | [sizeof=32, align=8
|
||
|
|
// CHECK-X64-NEXT: | nvsize=8, nvalign=8]
|
||
|
|
|
||
|
|
struct IA {
|
||
|
|
virtual void f();
|
||
|
|
};
|
||
|
|
struct __declspec(dllexport) IB : virtual IA {
|
||
|
|
virtual void f() = 0;
|
||
|
|
IB() {}
|
||
|
|
};
|
||
|
|
|
||
|
|
// CHECK: *** Dumping AST Record Layout
|
||
|
|
// CHECK: *** Dumping AST Record Layout
|
||
|
|
// CHECK-NEXT: 0 | struct IB
|
||
|
|
// CHECK-NEXT: 0 | (IB vbtable pointer)
|
||
|
|
// CHECK-NEXT: 4 | struct IA (virtual base)
|
||
|
|
// CHECK-NEXT: 4 | (IA vftable pointer)
|
||
|
|
// CHECK-NEXT: | [sizeof=8, align=4
|
||
|
|
// CHECK-NEXT: | nvsize=4, nvalign=4]
|
||
|
|
// CHECK-X64: *** Dumping AST Record Layout
|
||
|
|
// CHECK-X64: *** Dumping AST Record Layout
|
||
|
|
// CHECK-X64-NEXT: 0 | struct IB
|
||
|
|
// CHECK-X64-NEXT: 0 | (IB vbtable pointer)
|
||
|
|
// CHECK-X64-NEXT: 8 | struct IA (virtual base)
|
||
|
|
// CHECK-X64-NEXT: 8 | (IA vftable pointer)
|
||
|
|
// CHECK-X64-NEXT: | [sizeof=16, align=8
|
||
|
|
// CHECK-X64-NEXT: | nvsize=8, nvalign=8]
|
||
|
|
|
||
|
|
int a[
|
||
|
|
sizeof(A)+
|
||
|
|
sizeof(C)+
|
||
|
|
sizeof(D)+
|
||
|
|
sizeof(CT)+
|
||
|
|
sizeof(XC)+
|
||
|
|
sizeof(pragma_test1::C)+
|
||
|
|
sizeof(pragma_test2::C)+
|
||
|
|
sizeof(pragma_test3::C)+
|
||
|
|
sizeof(pragma_test4::C)+
|
||
|
|
sizeof(GD)+
|
||
|
|
sizeof(HC)+
|
||
|
|
sizeof(IB)+
|
||
|
|
0];
|