llvm/unittests/Object/StringTableBuilderTest.cpp
Hans Wennborg a8febf2283 ELFObjectWriter: deduplicate suffices in strtab
We already do this for shstrtab, so might as well do it for strtab. This
extracts the string table building code into a separate class. The idea
is to use it for other object formats too.

I mostly wanted to do this for the general principle, but it does save a
little bit on object file size. I tried this on a clang bootstrap and
saved 0.54% on the sum of object file sizes (1.14 MB out of 212 MB for
a release build).

Differential Revision: http://reviews.llvm.org/D3533

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@207670 91177308-0d34-0410-b5e6-96231b3b80d8
2014-04-30 16:25:02 +00:00

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//===----------- StringTableBuilderTest.cpp -------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#include "gtest/gtest.h"
#include "llvm/Object/StringTableBuilder.h"
#include <string>
using namespace llvm;
namespace {
TEST(StringTableBuilderTest, Basic) {
StringTableBuilder B;
B.add("foo");
B.add("bar");
B.add("foobar");
B.finalize();
std::string Expected;
Expected += '\x00';
Expected += "foobar";
Expected += '\x00';
Expected += "foo";
Expected += '\x00';
EXPECT_EQ(Expected, B.data());
EXPECT_EQ(1U, B.getOffset("foobar"));
EXPECT_EQ(4U, B.getOffset("bar"));
EXPECT_EQ(8U, B.getOffset("foo"));
}
}