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

5 files changed, 63 insertions, 1 deletions

diff --git a/unittests/CMakeLists.txt b/unittests/CMakeLists.txt
index a3f8bf34e7..4b7e418cd1 100644
--- a/unittests/CMakeLists.txt
+++ b/unittests/CMakeLists.txt
@@ -13,3 +13,4 @@ add_subdirectory(Option)
 add_subdirectory(Support)
 add_subdirectory(Transforms)
 add_subdirectory(IR)
+add_subdirectory(DebugInfo)
diff --git a/unittests/DebugInfo/CMakeLists.txt b/unittests/DebugInfo/CMakeLists.txt
new file mode 100644
index 0000000000..ec580b7f69
--- /dev/null
+++ b/unittests/DebugInfo/CMakeLists.txt
@@ -0,0 +1,13 @@
+set(LLVM_LINK_COMPONENTS
+  debuginfo
+  object
+  support
+  )
+
+set(DebugInfoSources
+  DWARFFormValueTest.cpp
+  )
+
+add_llvm_unittest(DebugInfoTests
+  ${DebugInfoSources}
+  )
diff --git a/unittests/DebugInfo/DWARFFormValueTest.cpp b/unittests/DebugInfo/DWARFFormValueTest.cpp
new file mode 100644
index 0000000000..04b859bdb9
--- /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
diff --git a/unittests/DebugInfo/Makefile b/unittests/DebugInfo/Makefile
new file mode 100644
index 0000000000..999ded90b0
--- /dev/null
+++ b/unittests/DebugInfo/Makefile
@@ -0,0 +1,16 @@
+##===- unittests/DebugInfo/Makefile ------------------------*- Makefile -*-===##
+#
+#                     The LLVM Compiler Infrastructure
+#
+# This file is distributed under the University of Illinois Open Source
+# License. See LICENSE.TXT for details.
+#
+##===----------------------------------------------------------------------===##
+
+LEVEL = ../..
+TESTNAME = DebugInfo
+LINK_COMPONENTS := debuginfo object support
+
+include $(LEVEL)/Makefile.config
+
+include $(LLVM_SRC_ROOT)/unittests/Makefile.unittest
diff --git a/unittests/Makefile b/unittests/Makefile
index 926459ac08..61d60611be 100644
--- a/unittests/Makefile
+++ b/unittests/Makefile
@@ -9,7 +9,8 @@
 
 LEVEL = ..
 
-PARALLEL_DIRS = ADT ExecutionEngine Support Transforms IR Analysis Bitcode
+PARALLEL_DIRS = ADT ExecutionEngine Support Transforms IR Analysis Bitcode \
+								DebugInfo
 
 include $(LEVEL)/Makefile.common