Emit the underlying type in the debug info for all kinds of fixed enums

instead of only C++11-scoped-with-class-tag enums.

rdar://problem/13463793

llvm-svn: 179879

1 files changed, 64 insertions, 0 deletions

diff --git a/clang/test/CodeGenObjC/objc-fixed-enum.m b/clang/test/CodeGenObjC/objc-fixed-enum.m
new file mode 100644
index 00000000000..471068bca10
--- /dev/null
+++ b/clang/test/CodeGenObjC/objc-fixed-enum.m
@@ -0,0 +1,64 @@
+// RUN: %clang_cc1 -triple armv7-apple-darwin10 -g -emit-llvm -Werror -o - %s | FileCheck %s
+
+// The DWARF standard says the underlying data type of an enum may be
+// stored in an DW_AT_type() entry in the enum DIE.
+
+typedef long NSInteger;
+#define NS_ENUM(_type, _name) enum _name : _type _name; enum _name : _type
+
+// Enum with no specified underlying type
+typedef enum {
+  Enum0One,
+  Enum0Two
+} Enum0;
+
+// Enum declared with the NS_ENUM macro
+typedef NS_ENUM(NSInteger, Enum1) {
+  Enum1One = -1,
+  Enum1Two
+};
+
+// Enum declared with a fixed underlying type
+typedef enum : NSInteger {
+  Enum2One = -1,
+  Enum2Two
+} Enum2;
+
+// Typedef and declaration separately
+enum : NSInteger
+{
+  Enum3One = -1,
+  Enum3Two
+};
+typedef NSInteger Enum3;
+
+int main() {
+  Enum0 e0 = Enum0One;
+  // CHECK: call void @llvm.dbg.declare(metadata !{{.*}}, metadata ![[ENUM0:[0-9]+]])
+  Enum1 e1 = Enum1One;
+  // CHECK: call void @llvm.dbg.declare(metadata !{{.*}}, metadata ![[ENUM1:[0-9]+]])
+  Enum2 e2 = Enum2One;
+  // CHECK: call void @llvm.dbg.declare(metadata !{{.*}}, metadata ![[ENUM2:[0-9]+]])
+  Enum3 e3 = Enum3One;
+  // CHECK: call void @llvm.dbg.declare(metadata !{{.*}}, metadata ![[ENUM3:[0-9]+]])
+
+  // -Werror and the following line ensures that these enums are not
+  // -treated as C++11 strongly typed enums.
+  return e0 != e1 && e1 == e2 && e2 == e3;
+}
+// CHECK: ![[ENUMERATOR0:[0-9]+]] = {{.*}}; [ DW_TAG_enumeration_type ] [line 10
+// CHECK: ![[ENUMERATOR1:[0-9]+]] = {{.*}}; [ DW_TAG_enumeration_type ] [Enum1] [line 16{{.*}}] [from NSInteger]
+// CHECK: ![[ENUMERATOR3:[0-9]+]] = {{.*}}; [ DW_TAG_typedef ] [NSInteger] [line 6{{.*}}] [from long int]
+// CHECK: ![[ENUMERATOR2:[0-9]+]] = {{.*}}; [ DW_TAG_enumeration_type ] [line 22{{.*}}] [from NSInteger]
+
+// CHECK: ![[ENUM0]] = metadata !{{{.*}}!"e0", metadata !{{[0-9]+}}, i32 {{[0-9]+}}, metadata ![[TYPE0:[0-9]+]]
+// CHECK: ![[TYPE0]] = metadata !{{{.*}}!"Enum0", {{.*}} metadata ![[ENUMERATOR0]]} ; [ DW_TAG_typedef ] [Enum0]
+
+// CHECK: ![[ENUM1]] = metadata !{{{.*}}!"e1", metadata !{{[0-9]+}}, i32 {{[0-9]+}}, metadata ![[TYPE1:[0-9]+]]
+// CHECK: ![[TYPE1]] = metadata !{{{.*}}!"Enum1", {{.*}} metadata ![[ENUMERATOR1]]} ; [ DW_TAG_typedef ] [Enum1]
+
+// CHECK: ![[ENUM2]] = metadata !{{{.*}}!"e2", metadata !{{[0-9]+}}, i32 {{[0-9]+}}, metadata ![[TYPE2:[0-9]+]]
+// CHECK: ![[TYPE2]] = metadata !{{{.*}}!"Enum2", {{.*}} metadata ![[ENUMERATOR2]]} ; [ DW_TAG_typedef ] [Enum2]
+
+// CHECK: ![[ENUM3]] = metadata !{{{.*}}!"e3", metadata !{{[0-9]+}}, i32 {{[0-9]+}}, metadata ![[TYPE3:[0-9]+]]
+// CHECK: ![[TYPE3]] = metadata !{{{.*}}!"Enum3", {{.*}} metadata ![[ENUMERATOR3]]} ; [ DW_TAG_typedef ] [Enum3]