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-rw-r--r--llvm/lib/Support/Dwarf.cpp2
-rw-r--r--llvm/unittests/Support/CMakeLists.txt1
-rw-r--r--llvm/unittests/Support/DwarfTest.cpp29
3 files changed, 30 insertions, 2 deletions
diff --git a/llvm/lib/Support/Dwarf.cpp b/llvm/lib/Support/Dwarf.cpp
index 4b6337ecc52..2101037e714 100644
--- a/llvm/lib/Support/Dwarf.cpp
+++ b/llvm/lib/Support/Dwarf.cpp
@@ -76,8 +76,6 @@ const char *llvm::dwarf::TagString(unsigned Tag) {
case DW_TAG_imported_unit: return "DW_TAG_imported_unit";
case DW_TAG_condition: return "DW_TAG_condition";
case DW_TAG_shared_type: return "DW_TAG_shared_type";
- case DW_TAG_lo_user: return "DW_TAG_lo_user";
- case DW_TAG_hi_user: return "DW_TAG_hi_user";
case DW_TAG_auto_variable: return "DW_TAG_auto_variable";
case DW_TAG_arg_variable: return "DW_TAG_arg_variable";
case DW_TAG_expression: return "DW_TAG_expression";
diff --git a/llvm/unittests/Support/CMakeLists.txt b/llvm/unittests/Support/CMakeLists.txt
index dd270ccea42..214972ef8a9 100644
--- a/llvm/unittests/Support/CMakeLists.txt
+++ b/llvm/unittests/Support/CMakeLists.txt
@@ -13,6 +13,7 @@ add_llvm_unittest(SupportTests
CompressionTest.cpp
ConvertUTFTest.cpp
DataExtractorTest.cpp
+ DwarfTest.cpp
EndianTest.cpp
ErrorOrTest.cpp
FileOutputBufferTest.cpp
diff --git a/llvm/unittests/Support/DwarfTest.cpp b/llvm/unittests/Support/DwarfTest.cpp
new file mode 100644
index 00000000000..9b141601b20
--- /dev/null
+++ b/llvm/unittests/Support/DwarfTest.cpp
@@ -0,0 +1,29 @@
+//===- unittest/Support/DwarfTest.cpp - Dwarf support tests ---------------===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#include "llvm/Support/Dwarf.h"
+#include "gtest/gtest.h"
+
+using namespace llvm;
+using namespace llvm::dwarf;
+
+namespace {
+
+TEST(DwarfTest, TagStringOnInvalid) {
+ // This is invalid, so it shouldn't be stringified.
+ EXPECT_EQ(nullptr, TagString(DW_TAG_invalid));
+
+ // These aren't really tags: they describe ranges within tags. They
+ // shouldn't be stringified either.
+ EXPECT_EQ(nullptr, TagString(DW_TAG_lo_user));
+ EXPECT_EQ(nullptr, TagString(DW_TAG_hi_user));
+ EXPECT_EQ(nullptr, TagString(DW_TAG_user_base));
+}
+
+} // end namespace
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