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