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// RUN: %clang_cc1 -emit-llvm -debug-info-kind=limited -triple x86_64-linux-gnu %s -o - | FileCheck %s
// Make sure that we emit a global variable for each of the members of the
// anonymous union.
static union {
int c;
int d;
union {
int a;
};
struct {
int b;
};
};
int test_it() {
c = 1;
d = 2;
a = 4;
return (c == 1);
}
void foo() {
union {
int i;
char c;
};
i = 8;
}
// A funky reinterpret cast idiom that we used to crash on.
template <class T>
unsigned char *buildBytes(const T v) {
static union {
unsigned char result[sizeof(T)];
T value;
};
value = v;
return result;
}
void instantiate(int x) {
buildBytes(x);
}
// CHECK: !DIGlobalVariable(name: "c",{{.*}} file: [[FILE:.*]], line: 6,{{.*}} isLocal: true, isDefinition: true
// CHECK: !DIGlobalVariable(name: "d",{{.*}} file: [[FILE]], line: 6,{{.*}} isLocal: true, isDefinition: true
// CHECK: [[FILE]] = !DIFile(filename: "{{.*}}debug-info-anon-union-vars.cpp",
// CHECK: !DIGlobalVariable(name: "a",{{.*}} file: [[FILE]], line: 6,{{.*}} isLocal: true, isDefinition: true
// CHECK: !DIGlobalVariable(name: "b",{{.*}} file: [[FILE]], line: 6,{{.*}} isLocal: true, isDefinition: true
// CHECK: !DIGlobalVariable(name: "result", {{.*}} isLocal: false, isDefinition: true
// CHECK: !DIGlobalVariable(name: "value", {{.*}} isLocal: false, isDefinition: true
// CHECK: !DILocalVariable(name: "i", {{.*}}, flags: DIFlagArtificial
// CHECK: !DILocalVariable(name: "c", {{.*}}, flags: DIFlagArtificial
// CHECK: !DILocalVariable(
// CHECK-NOT: name:
// CHECK: type: ![[UNION:[0-9]+]]
// CHECK: ![[UNION]] = distinct !DICompositeType(tag: DW_TAG_union_type,
// CHECK-NOT: name:
// CHECK: elements
// CHECK: !DIDerivedType(tag: DW_TAG_member, name: "i", scope: ![[UNION]],
// CHECK: !DIDerivedType(tag: DW_TAG_member, name: "c", scope: ![[UNION]],
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