| // RUN: %clang_cc1 -fdump-record-layouts-simple %s 2> %t.layouts |
| // RUN: %clang_cc1 -fdump-record-layouts-simple %s > %t.before 2>&1 |
| // RUN: %clang_cc1 -DPACKED= -DALIGNED16= -fdump-record-layouts-simple -foverride-record-layout=%t.layouts %s > %t.after 2>&1 |
| // RUN: diff %t.before %t.after |
| // RUN: FileCheck %s < %t.after |
| |
| // If not explicitly disabled, set PACKED to the packed attribute. |
| #ifndef PACKED |
| # define PACKED __attribute__((packed)) |
| #endif |
| |
| struct Empty1 { }; |
| struct Empty2 { }; |
| |
| // CHECK: Type: struct X0 |
| struct X0 : public Empty1 { |
| int x[6] PACKED; |
| }; |
| |
| // CHECK: Type: struct X1 |
| struct X1 : public X0, public Empty2 { |
| char x[13]; |
| struct X0 y; |
| } PACKED; |
| |
| // CHECK: Type: struct X2 |
| struct PACKED X2 : public X1, public X0, public Empty1 { |
| short x; |
| int y; |
| }; |
| |
| // CHECK: Type: struct X3 |
| struct PACKED X3 : virtual public X1, public X0 { |
| short x; |
| int y; |
| }; |
| |
| void use_structs() { |
| struct X0 x0; |
| x0.x[5] = sizeof(struct X0); |
| |
| struct X1 x1; |
| x1.x[5] = sizeof(struct X1); |
| |
| struct X2 x2; |
| x2.y = sizeof(struct X2); |
| |
| struct X3 x3; |
| x3.y = sizeof(struct X3); |
| } |