unittests/DebugInfo/DWARFFormValueTest.cpp

//===- 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