Create a stub for DWARF parser unittests
Moves one DWARF-specific header to include/llvm/DebugInfo from lib/.
Add a short unittest for r179095.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@179678 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/unittests/DebugInfo/DWARFFormValueTest.cpp b/unittests/DebugInfo/DWARFFormValueTest.cpp
new file mode 100644
index 0000000..04b859b
--- /dev/null
+++ b/unittests/DebugInfo/DWARFFormValueTest.cpp
@@ -0,0 +1,31 @@
+//===- llvm/unittest/DebugInfo/DWARFFormValueTest.cpp ---------------------===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#include "llvm/DebugInfo/DWARFFormValue.h"
+#include "llvm/Support/Dwarf.h"
+#include "gtest/gtest.h"
+using namespace llvm;
+using namespace dwarf;
+
+namespace {
+
+TEST(DWARFFormValue, FixedFormSizes) {
+ // Size of DW_FORM_addr and DW_FORM_ref_addr are equal in DWARF2,
+ // DW_FORM_ref_addr is always 4 bytes in DWARF32 starting from DWARF3.
+ const uint8_t *sizes = DWARFFormValue::getFixedFormSizes(4, 2);
+ EXPECT_EQ(sizes[DW_FORM_addr], sizes[DW_FORM_ref_addr]);
+ sizes = DWARFFormValue::getFixedFormSizes(8, 2);
+ EXPECT_EQ(sizes[DW_FORM_addr], sizes[DW_FORM_ref_addr]);
+ sizes = DWARFFormValue::getFixedFormSizes(8, 3);
+ EXPECT_EQ(4, sizes[DW_FORM_ref_addr]);
+ // Check that we don't have fixed form sizes for weird address sizes.
+ EXPECT_EQ(0, DWARFFormValue::getFixedFormSizes(16, 2));
+}
+
+} // end anonymous namespace