Add a hashing routine that handles hashing types. Add a test for

hashing the contents of DW_FORM_data1 on top of a type with attributes.

llvm-svn: 189862

1 files changed, 29 insertions, 0 deletions

diff --git a/llvm/unittests/CodeGen/DIEHashTest.cpp b/llvm/unittests/CodeGen/DIEHashTest.cpp
new file mode 100644
index 00000000000..54dc4ee5d7f
--- /dev/null
+++ b/llvm/unittests/CodeGen/DIEHashTest.cpp
@@ -0,0 +1,29 @@
+//===- 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 "../lib/CodeGen/AsmPrinter/DIE.h"
+#include "../lib/CodeGen/AsmPrinter/DIEHash.h"
+#include "llvm/Support/Dwarf.h"
+#include "llvm/Support/Debug.h"
+#include "llvm/Support/Format.h"
+#include "gtest/gtest.h"
+
+namespace {
+
+using namespace llvm;
+TEST(DIEHashData1Test, DIEHash) {
+  DIEHash Hash;
+  DIE *Die = new DIE(dwarf::DW_TAG_base_type);
+  DIEValue *Size = new DIEInteger(4);
+  Die->addValue(dwarf::DW_AT_byte_size, dwarf::DW_FORM_data1, Size);
+  uint64_t MD5Res = Hash.computeTypeSignature(Die);
+  ASSERT_TRUE(MD5Res == 0x540e9ff30ade3e4a);
+  delete Die;
+}
+}