Adding llvm::sys::swapByteOrder() for the common use-case of byte-swapping a value in place
llvm-svn: 210976
diff --git a/llvm/unittests/Support/SwapByteOrderTest.cpp b/llvm/unittests/Support/SwapByteOrderTest.cpp
index a07282e..525cfc1 100644
--- a/llvm/unittests/Support/SwapByteOrderTest.cpp
+++ b/llvm/unittests/Support/SwapByteOrderTest.cpp
@@ -125,4 +125,52 @@
sys::getSwappedBytes(int64_t(0x8877665544332211LL)));
}
+TEST(swapByteOrder, uint8_t) {
+ uint8_t value = 0x11;
+ sys::swapByteOrder(value);
+ EXPECT_EQ(uint8_t(0x11), value);
+}
+
+TEST(swapByteOrder, uint16_t) {
+ uint16_t value = 0x2211;
+ sys::swapByteOrder(value);
+ EXPECT_EQ(uint16_t(0x1122), value);
+}
+
+TEST(swapByteOrder, uint32_t) {
+ uint32_t value = 0x44332211;
+ sys::swapByteOrder(value);
+ EXPECT_EQ(uint32_t(0x11223344), value);
+}
+
+TEST(swapByteOrder, uint64_t) {
+ uint64_t value = 0x8877665544332211ULL;
+ sys::swapByteOrder(value);
+ EXPECT_EQ(uint64_t(0x1122334455667788ULL), value);
+}
+
+TEST(swapByteOrder, int8_t) {
+ int8_t value = 0x11;
+ sys::swapByteOrder(value);
+ EXPECT_EQ(int8_t(0x11), value);
+}
+
+TEST(swapByteOrder, int16_t) {
+ int16_t value = 0x2211;
+ sys::swapByteOrder(value);
+ EXPECT_EQ(int16_t(0x1122), value);
+}
+
+TEST(swapByteOrder, int32_t) {
+ int32_t value = 0x44332211;
+ sys::swapByteOrder(value);
+ EXPECT_EQ(int32_t(0x11223344), value);
+}
+
+TEST(swapByteOrder, int64_t) {
+ int64_t value = 0x8877665544332211LL;
+ sys::swapByteOrder(value);
+ EXPECT_EQ(int64_t(0x1122334455667788LL), value);
+}
+
}