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annotate clang/test/CodeGen/debug-info-packed-struct.c @ 207:2e18cbf3894f

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LLVM12
author Shinji KONO <kono@ie.u-ryukyu.ac.jp>
date Tue, 08 Jun 2021 06:07:14 +0900
parents 1d019706d866
children
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rev   line source
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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;