| // RUN: %clang_cc1 -w -fdump-record-layouts-simple %s > %t.layouts |
| // RUN: %clang_cc1 -w -fdump-record-layouts-simple %s > %t.before |
| // RUN: %clang_cc1 -w -DPACKED= -DALIGNED16= -fdump-record-layouts-simple -foverride-record-layout=%t.layouts %s > %t.after |
| // RUN: diff -u %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; |
| }; |
| |
| // CHECK: Type: struct X4 |
| struct PACKED X4 { |
| unsigned int a : 1; |
| unsigned int b : 1; |
| unsigned int c : 1; |
| unsigned int d : 1; |
| unsigned int e : 1; |
| unsigned int f : 1; |
| unsigned int g : 1; |
| unsigned int h : 1; |
| unsigned int i : 1; |
| unsigned int j : 1; |
| unsigned int k : 1; |
| unsigned int l : 1; |
| unsigned int m : 1; |
| unsigned int n : 1; |
| X4(); |
| }; |
| |
| // CHECK: Type: struct X5 |
| struct PACKED X5 { |
| union { |
| long a; |
| long b; |
| }; |
| short l; |
| short r; |
| }; |
| |
| // CHECK: Type: struct X6 |
| struct __attribute__((aligned(16))) X6 { |
| int x; |
| int y; |
| virtual ~X6(); |
| }; |
| |
| // CHECK: Type: struct X7 |
| struct X7 { |
| int z; |
| }; |
| |
| // CHECK: Type: struct X8 |
| struct X8 : X6, virtual X7 { |
| char c; |
| }; |
| |
| void use_structs() { |
| X0 x0s[sizeof(X0)]; |
| X1 x1s[sizeof(X1)]; |
| X2 x2s[sizeof(X2)]; |
| X3 x3s[sizeof(X3)]; |
| X4 x4s[sizeof(X4)]; |
| X5 x5s[sizeof(X5)]; |
| X6 x6s[sizeof(X6)]; |
| X7 x7s[sizeof(X7)]; |
| X8 x8s[sizeof(X8)]; |
| x4s[1].a = 1; |
| x5s[1].a = 17; |
| } |