| 1 | // RUN: %clang_cc1 -w -fdump-record-layouts-simple %s > %t.layouts |
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| 2 | // RUN: %clang_cc1 -w -fdump-record-layouts-simple %s > %t.before |
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| 3 | // RUN: %clang_cc1 -w -DPACKED= -DALIGNED16= -fdump-record-layouts-simple -foverride-record-layout=%t.layouts %s > %t.after |
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| 4 | // RUN: diff -u %t.before %t.after |
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| 5 | // RUN: FileCheck %s < %t.after |
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| 6 | |
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| 7 | // If not explicitly disabled, set PACKED to the packed attribute. |
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| 8 | #ifndef PACKED |
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| 9 | # define PACKED __attribute__((packed)) |
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| 10 | #endif |
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| 11 | |
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| 12 | struct Empty1 { }; |
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| 13 | struct Empty2 { }; |
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| 14 | |
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| 15 | // CHECK: Type: struct X0 |
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| 16 | struct X0 : public Empty1 { |
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| 17 | int x[6] PACKED; |
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| 18 | }; |
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| 19 | |
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| 20 | // CHECK: Type: struct X1 |
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| 21 | struct X1 : public X0, public Empty2 { |
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| 22 | char x[13]; |
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| 23 | struct X0 y; |
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| 24 | } PACKED; |
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| 25 | |
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| 26 | // CHECK: Type: struct X2 |
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| 27 | struct PACKED X2 : public X1, public X0, public Empty1 { |
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| 28 | short x; |
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| 29 | int y; |
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| 30 | }; |
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| 31 | |
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| 32 | // CHECK: Type: struct X3 |
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| 33 | struct PACKED X3 : virtual public X1, public X0 { |
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| 34 | short x; |
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| 35 | int y; |
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| 36 | }; |
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| 37 | |
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| 38 | // CHECK: Type: struct X4 |
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| 39 | struct PACKED X4 { |
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| 40 | unsigned int a : 1; |
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| 41 | unsigned int b : 1; |
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| 42 | unsigned int c : 1; |
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| 43 | unsigned int d : 1; |
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| 44 | unsigned int e : 1; |
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| 45 | unsigned int f : 1; |
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| 46 | unsigned int g : 1; |
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| 47 | unsigned int h : 1; |
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| 48 | unsigned int i : 1; |
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| 49 | unsigned int j : 1; |
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| 50 | unsigned int k : 1; |
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| 51 | unsigned int l : 1; |
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| 52 | unsigned int m : 1; |
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| 53 | unsigned int n : 1; |
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| 54 | X4(); |
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| 55 | }; |
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| 56 | |
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| 57 | // CHECK: Type: struct X5 |
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| 58 | struct PACKED X5 { |
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| 59 | union { |
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| 60 | long a; |
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| 61 | long b; |
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| 62 | }; |
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| 63 | short l; |
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| 64 | short r; |
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| 65 | }; |
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| 66 | |
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| 67 | // CHECK: Type: struct X6 |
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| 68 | struct __attribute__((aligned(16))) X6 { |
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| 69 | int x; |
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| 70 | int y; |
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| 71 | virtual ~X6(); |
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| 72 | }; |
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| 73 | |
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| 74 | // CHECK: Type: struct X7 |
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| 75 | struct X7 { |
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| 76 | int z; |
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| 77 | }; |
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| 78 | |
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| 79 | // CHECK: Type: struct X8 |
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| 80 | struct X8 : X6, virtual X7 { |
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| 81 | char c; |
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| 82 | }; |
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| 83 | |
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| 84 | void use_structs() { |
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| 85 | X0 x0s[sizeof(X0)]; |
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| 86 | X1 x1s[sizeof(X1)]; |
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| 87 | X2 x2s[sizeof(X2)]; |
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| 88 | X3 x3s[sizeof(X3)]; |
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| 89 | X4 x4s[sizeof(X4)]; |
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| 90 | X5 x5s[sizeof(X5)]; |
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| 91 | X6 x6s[sizeof(X6)]; |
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| 92 | X7 x7s[sizeof(X7)]; |
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| 93 | X8 x8s[sizeof(X8)]; |
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| 94 | x4s[1].a = 1; |
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| 95 | x5s[1].a = 17; |
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| 96 | } |
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| 97 | |
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