| 1 | // RUN: %clang_cc1 -emit-llvm -debug-info-kind=limited -triple x86_64-linux-gnu %s -o - | FileCheck %s |
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| 2 | |
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| 3 | // Make sure that we emit a global variable for each of the members of the |
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| 4 | // anonymous union. |
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| 5 | |
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| 6 | static union { |
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| 7 | int c; |
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| 8 | int d; |
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| 9 | union { |
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| 10 | int a; |
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| 11 | }; |
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| 12 | struct { |
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| 13 | int b; |
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| 14 | }; |
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| 15 | }; |
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| 16 | |
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| 17 | int test_it() { |
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| 18 | c = 1; |
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| 19 | d = 2; |
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| 20 | a = 4; |
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| 21 | return (c == 1); |
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| 22 | } |
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| 23 | |
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| 24 | void foo() { |
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| 25 | union { |
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| 26 | int i; |
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| 27 | char c; |
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| 28 | }; |
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| 29 | i = 8; |
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| 30 | } |
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| 31 | |
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| 32 | // A funky reinterpret cast idiom that we used to crash on. |
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| 33 | template <class T> |
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| 34 | unsigned char *buildBytes(const T v) { |
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| 35 | static union { |
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| 36 | unsigned char result[sizeof(T)]; |
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| 37 | T value; |
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| 38 | }; |
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| 39 | value = v; |
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| 40 | return result; |
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| 41 | } |
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| 42 | |
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| 43 | void instantiate(int x) { |
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| 44 | buildBytes(x); |
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| 45 | } |
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| 46 | |
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| 47 | // CHECK: !DIGlobalVariable(name: "c",{{.*}} file: [[FILE:.*]], line: 6,{{.*}} isLocal: true, isDefinition: true |
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| 48 | // CHECK: !DIGlobalVariable(name: "d",{{.*}} file: [[FILE]], line: 6,{{.*}} isLocal: true, isDefinition: true |
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| 49 | // CHECK: [[FILE]] = !DIFile(filename: "{{.*}}debug-info-anon-union-vars.cpp", |
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| 50 | // CHECK: !DIGlobalVariable(name: "a",{{.*}} file: [[FILE]], line: 6,{{.*}} isLocal: true, isDefinition: true |
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| 51 | // CHECK: !DIGlobalVariable(name: "b",{{.*}} file: [[FILE]], line: 6,{{.*}} isLocal: true, isDefinition: true |
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| 52 | // CHECK: !DIGlobalVariable(name: "result", {{.*}} isLocal: false, isDefinition: true |
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| 53 | // CHECK: !DIGlobalVariable(name: "value", {{.*}} isLocal: false, isDefinition: true |
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| 54 | // CHECK: !DILocalVariable(name: "i", {{.*}}, flags: DIFlagArtificial |
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| 55 | // CHECK: !DILocalVariable(name: "c", {{.*}}, flags: DIFlagArtificial |
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| 56 | // CHECK: !DILocalVariable( |
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| 57 | // CHECK-NOT: name: |
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| 58 | // CHECK: type: ![[UNION:[0-9]+]] |
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| 59 | // CHECK: ![[UNION]] = distinct !DICompositeType(tag: DW_TAG_union_type, |
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| 60 | // CHECK-NOT: name: |
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| 61 | // CHECK: elements |
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| 62 | // CHECK: !DIDerivedType(tag: DW_TAG_member, name: "i", scope: ![[UNION]], |
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| 63 | // CHECK: !DIDerivedType(tag: DW_TAG_member, name: "c", scope: ![[UNION]], |
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| 64 | |
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