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