mirror of
https://github.com/RPCSX/llvm.git
synced 2024-12-05 02:16:46 +00:00
859d998768
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@258701 91177308-0d34-0410-b5e6-96231b3b80d8
209 lines
5.7 KiB
C++
209 lines
5.7 KiB
C++
//===- unittests/Support/EndianStreamTest.cpp - EndianStream.h tests ------===//
|
|
//
|
|
// The LLVM Compiler Infrastructure
|
|
//
|
|
// This file is distributed under the University of Illinois Open Source
|
|
// License. See LICENSE.TXT for details.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#include "llvm/ADT/SmallString.h"
|
|
#include "llvm/Support/EndianStream.h"
|
|
#include "llvm/Support/DataTypes.h"
|
|
#include "gtest/gtest.h"
|
|
using namespace llvm;
|
|
using namespace support;
|
|
|
|
namespace {
|
|
|
|
TEST(EndianStream, WriteInt32LE) {
|
|
SmallString<16> data;
|
|
|
|
{
|
|
raw_svector_ostream OS(data);
|
|
endian::Writer<little> LE(OS);
|
|
LE.write(static_cast<int32_t>(-1362446643));
|
|
}
|
|
|
|
EXPECT_EQ(static_cast<uint8_t>(data[0]), 0xCD);
|
|
EXPECT_EQ(static_cast<uint8_t>(data[1]), 0xB6);
|
|
EXPECT_EQ(static_cast<uint8_t>(data[2]), 0xCA);
|
|
EXPECT_EQ(static_cast<uint8_t>(data[3]), 0xAE);
|
|
}
|
|
|
|
TEST(EndianStream, WriteInt32BE) {
|
|
SmallVector<char, 16> data;
|
|
|
|
{
|
|
raw_svector_ostream OS(data);
|
|
endian::Writer<big> BE(OS);
|
|
BE.write(static_cast<int32_t>(-1362446643));
|
|
}
|
|
|
|
EXPECT_EQ(static_cast<uint8_t>(data[0]), 0xAE);
|
|
EXPECT_EQ(static_cast<uint8_t>(data[1]), 0xCA);
|
|
EXPECT_EQ(static_cast<uint8_t>(data[2]), 0xB6);
|
|
EXPECT_EQ(static_cast<uint8_t>(data[3]), 0xCD);
|
|
}
|
|
|
|
|
|
TEST(EndianStream, WriteFloatLE) {
|
|
SmallString<16> data;
|
|
|
|
{
|
|
raw_svector_ostream OS(data);
|
|
endian::Writer<little> LE(OS);
|
|
LE.write(12345.0f);
|
|
}
|
|
|
|
EXPECT_EQ(static_cast<uint8_t>(data[0]), 0x00);
|
|
EXPECT_EQ(static_cast<uint8_t>(data[1]), 0xE4);
|
|
EXPECT_EQ(static_cast<uint8_t>(data[2]), 0x40);
|
|
EXPECT_EQ(static_cast<uint8_t>(data[3]), 0x46);
|
|
}
|
|
|
|
TEST(EndianStream, WriteFloatBE) {
|
|
SmallVector<char, 16> data;
|
|
|
|
{
|
|
raw_svector_ostream OS(data);
|
|
endian::Writer<big> BE(OS);
|
|
BE.write(12345.0f);
|
|
}
|
|
|
|
EXPECT_EQ(static_cast<uint8_t>(data[0]), 0x46);
|
|
EXPECT_EQ(static_cast<uint8_t>(data[1]), 0x40);
|
|
EXPECT_EQ(static_cast<uint8_t>(data[2]), 0xE4);
|
|
EXPECT_EQ(static_cast<uint8_t>(data[3]), 0x00);
|
|
}
|
|
|
|
TEST(EndianStream, WriteInt64LE) {
|
|
SmallString<16> data;
|
|
|
|
{
|
|
raw_svector_ostream OS(data);
|
|
endian::Writer<little> LE(OS);
|
|
LE.write(static_cast<int64_t>(-136244664332342323));
|
|
}
|
|
|
|
EXPECT_EQ(static_cast<uint8_t>(data[0]), 0xCD);
|
|
EXPECT_EQ(static_cast<uint8_t>(data[1]), 0xAB);
|
|
EXPECT_EQ(static_cast<uint8_t>(data[2]), 0xED);
|
|
EXPECT_EQ(static_cast<uint8_t>(data[3]), 0x1B);
|
|
EXPECT_EQ(static_cast<uint8_t>(data[4]), 0x33);
|
|
EXPECT_EQ(static_cast<uint8_t>(data[5]), 0xF6);
|
|
EXPECT_EQ(static_cast<uint8_t>(data[6]), 0x1B);
|
|
EXPECT_EQ(static_cast<uint8_t>(data[7]), 0xFE);
|
|
}
|
|
|
|
TEST(EndianStream, WriteInt64BE) {
|
|
SmallVector<char, 16> data;
|
|
|
|
{
|
|
raw_svector_ostream OS(data);
|
|
endian::Writer<big> BE(OS);
|
|
BE.write(static_cast<int64_t>(-136244664332342323));
|
|
}
|
|
|
|
EXPECT_EQ(static_cast<uint8_t>(data[0]), 0xFE);
|
|
EXPECT_EQ(static_cast<uint8_t>(data[1]), 0x1B);
|
|
EXPECT_EQ(static_cast<uint8_t>(data[2]), 0xF6);
|
|
EXPECT_EQ(static_cast<uint8_t>(data[3]), 0x33);
|
|
EXPECT_EQ(static_cast<uint8_t>(data[4]), 0x1B);
|
|
EXPECT_EQ(static_cast<uint8_t>(data[5]), 0xED);
|
|
EXPECT_EQ(static_cast<uint8_t>(data[6]), 0xAB);
|
|
EXPECT_EQ(static_cast<uint8_t>(data[7]), 0xCD);
|
|
}
|
|
|
|
TEST(EndianStream, WriteDoubleLE) {
|
|
SmallString<16> data;
|
|
|
|
{
|
|
raw_svector_ostream OS(data);
|
|
endian::Writer<little> LE(OS);
|
|
LE.write(-2349214918.58107);
|
|
}
|
|
|
|
EXPECT_EQ(static_cast<uint8_t>(data[0]), 0x20);
|
|
EXPECT_EQ(static_cast<uint8_t>(data[1]), 0x98);
|
|
EXPECT_EQ(static_cast<uint8_t>(data[2]), 0xD2);
|
|
EXPECT_EQ(static_cast<uint8_t>(data[3]), 0x98);
|
|
EXPECT_EQ(static_cast<uint8_t>(data[4]), 0xC5);
|
|
EXPECT_EQ(static_cast<uint8_t>(data[5]), 0x80);
|
|
EXPECT_EQ(static_cast<uint8_t>(data[6]), 0xE1);
|
|
EXPECT_EQ(static_cast<uint8_t>(data[7]), 0xC1);
|
|
}
|
|
|
|
TEST(EndianStream, WriteDoubleBE) {
|
|
SmallVector<char, 16> data;
|
|
|
|
{
|
|
raw_svector_ostream OS(data);
|
|
endian::Writer<big> BE(OS);
|
|
BE.write(-2349214918.58107);
|
|
}
|
|
|
|
EXPECT_EQ(static_cast<uint8_t>(data[0]), 0xC1);
|
|
EXPECT_EQ(static_cast<uint8_t>(data[1]), 0xE1);
|
|
EXPECT_EQ(static_cast<uint8_t>(data[2]), 0x80);
|
|
EXPECT_EQ(static_cast<uint8_t>(data[3]), 0xC5);
|
|
EXPECT_EQ(static_cast<uint8_t>(data[4]), 0x98);
|
|
EXPECT_EQ(static_cast<uint8_t>(data[5]), 0xD2);
|
|
EXPECT_EQ(static_cast<uint8_t>(data[6]), 0x98);
|
|
EXPECT_EQ(static_cast<uint8_t>(data[7]), 0x20);
|
|
}
|
|
|
|
TEST(EndianStream, WriteArrayLE) {
|
|
SmallString<16> Data;
|
|
|
|
{
|
|
raw_svector_ostream OS(Data);
|
|
endian::Writer<little> LE(OS);
|
|
LE.write<uint16_t>({0x1234, 0x5678});
|
|
}
|
|
|
|
EXPECT_EQ(static_cast<uint8_t>(Data[0]), 0x34);
|
|
EXPECT_EQ(static_cast<uint8_t>(Data[1]), 0x12);
|
|
EXPECT_EQ(static_cast<uint8_t>(Data[2]), 0x78);
|
|
EXPECT_EQ(static_cast<uint8_t>(Data[3]), 0x56);
|
|
}
|
|
|
|
TEST(EndianStream, WriteVectorLE) {
|
|
SmallString<16> Data;
|
|
|
|
{
|
|
raw_svector_ostream OS(Data);
|
|
endian::Writer<little> LE(OS);
|
|
std::vector<uint16_t> Vec{0x1234, 0x5678};
|
|
LE.write<uint16_t>(Vec);
|
|
}
|
|
|
|
EXPECT_EQ(static_cast<uint8_t>(Data[0]), 0x34);
|
|
EXPECT_EQ(static_cast<uint8_t>(Data[1]), 0x12);
|
|
EXPECT_EQ(static_cast<uint8_t>(Data[2]), 0x78);
|
|
EXPECT_EQ(static_cast<uint8_t>(Data[3]), 0x56);
|
|
}
|
|
|
|
TEST(EndianStream, WriteFloatArrayLE) {
|
|
SmallString<16> Data;
|
|
|
|
{
|
|
raw_svector_ostream OS(Data);
|
|
endian::Writer<little> LE(OS);
|
|
LE.write<float>({12345.0f, 12346.0f});
|
|
}
|
|
|
|
EXPECT_EQ(static_cast<uint8_t>(Data[0]), 0x00);
|
|
EXPECT_EQ(static_cast<uint8_t>(Data[1]), 0xE4);
|
|
EXPECT_EQ(static_cast<uint8_t>(Data[2]), 0x40);
|
|
EXPECT_EQ(static_cast<uint8_t>(Data[3]), 0x46);
|
|
|
|
EXPECT_EQ(static_cast<uint8_t>(Data[4]), 0x00);
|
|
EXPECT_EQ(static_cast<uint8_t>(Data[5]), 0xE8);
|
|
EXPECT_EQ(static_cast<uint8_t>(Data[6]), 0x40);
|
|
EXPECT_EQ(static_cast<uint8_t>(Data[7]), 0x46);
|
|
}
|
|
|
|
|
|
} // end anon namespace
|