| 1 | // RUN: %clang_cc1 -x c -debug-info-kind=limited -emit-llvm -triple x86_64-apple-darwin -o - %s | FileCheck %s |
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| 2 | |
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| 3 | // CHECK: %struct.layout3 = type <{ i8, [3 x i8], %struct.size8_pack4, i8, [3 x i8] }> |
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| 4 | // CHECK: %struct.layout0 = type { i8, %struct.size8, i8 } |
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| 5 | // CHECK: %struct.layout1 = type <{ i8, %struct.size8_anon, i8, [2 x i8] }> |
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| 6 | // CHECK: %struct.layout2 = type <{ i8, %struct.size8_pack1, i8 }> |
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| 7 | |
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| 8 | // --------------------------------------------------------------------- |
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| 9 | // Not packed. |
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| 10 | // --------------------------------------------------------------------- |
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| 11 | struct size8 { |
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| 12 | int i : 4; |
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| 13 | long long l : 60; |
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| 14 | }; |
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| 15 | struct layout0 { |
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| 16 | char l0_ofs0; |
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| 17 | struct size8 l0_ofs8; |
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| 18 | int l0_ofs16 : 1; |
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| 19 | }; |
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| 20 | // CHECK: l0_ofs0 |
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| 21 | // CHECK: !DIDerivedType(tag: DW_TAG_member, name: "l0_ofs8", |
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| 22 | // CHECK-SAME: {{.*}}size: 64, offset: 64) |
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| 23 | // CHECK: !DIDerivedType(tag: DW_TAG_member, name: "l0_ofs16", |
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| 24 | // CHECK-SAME: {{.*}}size: 1, offset: 128, flags: DIFlagBitField, extraData: i64 128) |
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| 25 | |
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| 26 | |
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| 27 | // --------------------------------------------------------------------- |
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| 28 | // Implicitly packed. |
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| 29 | // --------------------------------------------------------------------- |
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| 30 | struct size8_anon { |
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| 31 | int : 4; |
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| 32 | long long : 60; |
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| 33 | }; |
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| 34 | struct layout1 { |
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| 35 | char l1_ofs0; |
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| 36 | struct size8_anon l1_ofs1; |
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| 37 | int l1_ofs9 : 1; |
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| 38 | }; |
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| 39 | // CHECK: l1_ofs0 |
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| 40 | // CHECK: !DIDerivedType(tag: DW_TAG_member, name: "l1_ofs1", |
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| 41 | // CHECK-SAME: {{.*}}size: 64, offset: 8) |
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| 42 | // CHECK: !DIDerivedType(tag: DW_TAG_member, name: "l1_ofs9", |
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| 43 | // CHECK-SAME: {{.*}}size: 1, offset: 72, flags: DIFlagBitField, extraData: i64 72) |
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| 44 | |
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| 45 | |
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| 46 | // --------------------------------------------------------------------- |
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| 47 | // Explicitly packed. |
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| 48 | // --------------------------------------------------------------------- |
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| 49 | #pragma pack(1) |
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| 50 | struct size8_pack1 { |
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| 51 | int i : 4; |
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| 52 | long long l : 60; |
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| 53 | }; |
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| 54 | struct layout2 { |
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| 55 | char l2_ofs0; |
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| 56 | struct size8_pack1 l2_ofs1; |
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| 57 | int l2_ofs9 : 1; |
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| 58 | }; |
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| 59 | #pragma pack() |
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| 60 | // CHECK: l2_ofs0 |
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| 61 | // CHECK: !DIDerivedType(tag: DW_TAG_member, name: "l2_ofs1", |
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| 62 | // CHECK-SAME: {{.*}}size: 64, offset: 8) |
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| 63 | // CHECK: !DIDerivedType(tag: DW_TAG_member, name: "l2_ofs9", |
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| 64 | // CHECK-SAME: {{.*}}size: 1, offset: 72, flags: DIFlagBitField, extraData: i64 72) |
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| 65 | |
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| 66 | |
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| 67 | |
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| 68 | // --------------------------------------------------------------------- |
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| 69 | // Explicitly packed with different alignment. |
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| 70 | // --------------------------------------------------------------------- |
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| 71 | #pragma pack(4) |
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| 72 | struct size8_pack4 { |
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| 73 | int i : 4; |
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| 74 | long long l : 60; |
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| 75 | }; |
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| 76 | struct layout3 { |
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| 77 | char l3_ofs0; |
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| 78 | struct size8_pack4 l3_ofs4; |
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| 79 | int l3_ofs12 : 1; |
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| 80 | }; |
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| 81 | #pragma pack() |
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| 82 | // CHECK: l3_ofs0 |
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| 83 | // CHECK: !DIDerivedType(tag: DW_TAG_member, name: "l3_ofs4", |
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| 84 | // CHECK-SAME: {{.*}}size: 64, offset: 32) |
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| 85 | // CHECK: !DIDerivedType(tag: DW_TAG_member, name: "l3_ofs12", |
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| 86 | // CHECK-SAME: {{.*}}size: 1, offset: 96, flags: DIFlagBitField, extraData: i64 96) |
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| 87 | |
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| 88 | struct layout3 l3; |
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| 89 | struct layout0 l0; |
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| 90 | struct layout1 l1; |
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| 91 | struct layout2 l2; |
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| 92 | |
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