Revert "System: Add SwapByteOrder and update Support/MathExtras.h to use it."

This reverts commit 116234.

It compiled just fine with MSVC and clang...

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116242 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 0 insertions, 128 deletions

diff --git a/unittests/Support/SwapByteOrderTest.cpp b/unittests/Support/SwapByteOrderTest.cpp
deleted file mode 100644
index ac7974e50aa..00000000000
--- a/unittests/Support/SwapByteOrderTest.cpp
+++ /dev/null
@@ -1,128 +0,0 @@
-//===- unittests/Support/SwapByteOrderTest.cpp - swap byte order test -----===//
-//
-//                     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/System/SwapByteOrder.h"
-#include <cstdlib>
-#include <ctime>
-using namespace llvm;
-
-#undef max
-
-namespace {
-
-// In these first two tests all of the origional_uintx values are truncated
-// except for 64. We could avoid this, but there's really no point.
-
-TEST(SwapByteOrder, UnsignedRoundTrip) {
-  // The point of the bit twiddling of magic is to test with and without bits
-  // in every byte.
-  uint64_t value = 1;
-  for (std::size_t i = 0; i <= sizeof(value); ++i) {
-    uint8_t origional_uint8 = static_cast<uint8_t>(value);
-    EXPECT_EQ(origional_uint8,
-      sys::SwapByteOrder(sys::SwapByteOrder(origional_uint8)));
-
-    uint16_t origional_uint16 = static_cast<uint16_t>(value);
-    EXPECT_EQ(origional_uint16,
-      sys::SwapByteOrder(sys::SwapByteOrder(origional_uint16)));
-
-    uint32_t origional_uint32 = static_cast<uint32_t>(value);
-    EXPECT_EQ(origional_uint32,
-      sys::SwapByteOrder(sys::SwapByteOrder(origional_uint32)));
-
-    uint64_t origional_uint64 = static_cast<uint64_t>(value);
-    EXPECT_EQ(origional_uint64,
-      sys::SwapByteOrder(sys::SwapByteOrder(origional_uint64)));
-
-    value = (value << 8) | 0x55; // binary 0101 0101.
-  }
-}
-
-TEST(SwapByteOrder, SignedRoundTrip) {
-  // The point of the bit twiddling of magic is to test with and without bits
-  // in every byte.
-  uint64_t value = 1;
-  for (std::size_t i = 0; i <= sizeof(value); ++i) {
-    int8_t origional_int8 = static_cast<int8_t>(value);
-    EXPECT_EQ(origional_int8,
-      sys::SwapByteOrder(sys::SwapByteOrder(origional_int8)));
-
-    int16_t origional_int16 = static_cast<int16_t>(value);
-    EXPECT_EQ(origional_int16,
-      sys::SwapByteOrder(sys::SwapByteOrder(origional_int16)));
-
-    int32_t origional_int32 = static_cast<int32_t>(value);
-    EXPECT_EQ(origional_int32,
-      sys::SwapByteOrder(sys::SwapByteOrder(origional_int32)));
-
-    int64_t origional_int64 = static_cast<int64_t>(value);
-    EXPECT_EQ(origional_int64,
-      sys::SwapByteOrder(sys::SwapByteOrder(origional_int64)));
-
-    // Test other sign.
-    value *= -1;
-
-    origional_int8 = static_cast<int8_t>(value);
-    EXPECT_EQ(origional_int8,
-      sys::SwapByteOrder(sys::SwapByteOrder(origional_int8)));
-
-    origional_int16 = static_cast<int16_t>(value);
-    EXPECT_EQ(origional_int16,
-      sys::SwapByteOrder(sys::SwapByteOrder(origional_int16)));
-
-    origional_int32 = static_cast<int32_t>(value);
-    EXPECT_EQ(origional_int32,
-      sys::SwapByteOrder(sys::SwapByteOrder(origional_int32)));
-
-    origional_int64 = static_cast<int64_t>(value);
-    EXPECT_EQ(origional_int64,
-      sys::SwapByteOrder(sys::SwapByteOrder(origional_int64)));
-
-    // Return to normal sign and twiddle.
-    value *= -1;
-    value = (value << 8) | 0x55; // binary 0101 0101.
-  }
-}
-
-TEST(SwapByteOrder, uint8_t) {
-  EXPECT_EQ(uint8_t(0x11), sys::SwapByteOrder<uint8_t>(0x11));
-}
-
-TEST(SwapByteOrder, uint16_t) {
-  EXPECT_EQ(uint16_t(0x1122), sys::SwapByteOrder<uint16_t>(0x2211));
-}
-
-TEST(SwapByteOrder, uint32_t) {
-  EXPECT_EQ(uint32_t(0x11223344), sys::SwapByteOrder<uint32_t>(0x44332211));
-}
-
-TEST(SwapByteOrder, uint64_t) {
-  EXPECT_EQ(uint64_t(0x1122334455667788),
-    sys::SwapByteOrder<uint64_t>(0x8877665544332211));
-}
-
-TEST(SwapByteOrder, int8_t) {
-  EXPECT_EQ(int8_t(0x11), sys::SwapByteOrder<int8_t>(0x11));
-}
-
-TEST(SwapByteOrder, int16_t) {
-  EXPECT_EQ(int16_t(0x1122), sys::SwapByteOrder<int16_t>(0x2211));
-}
-
-TEST(SwapByteOrder, int32_t) {
-  EXPECT_EQ(int32_t(0x11223344), sys::SwapByteOrder<int32_t>(0x44332211));
-}
-
-TEST(SwapByteOrder, int64_t) {
-  EXPECT_EQ(int64_t(0x1122334455667788),
-    sys::SwapByteOrder<int64_t>(0x8877665544332211));
-}
-
-}