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Revert "[llvm-profdata] Add SaturatingAdd/SaturatingMultiply Helper Functions"

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Not ready for merge.

llvm-svn: 253415
This commit is contained in:
Nathan Slingerland
2015-11-18 00:55:15 +00:00
parent 41cf1a5dfb
commit a75d2564fb
4 changed files with 9 additions and 77 deletions
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48
llvm/unittests/Support/MathExtrasTest.cpp
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@@ -190,52 +190,4 @@ TEST(MathExtras, RoundUpToAlignment) {
EXPECT_EQ(552u, RoundUpToAlignment(321, 255, 42));
}
template<typename T>
void SaturatingAddTestHelper()
{
EXPECT_EQ(static_cast<T>(3),
SaturatingAdd(static_cast<T>(1), static_cast<T>(2)));
EXPECT_EQ(std::numeric_limits<T>::max(),
SaturatingAdd(std::numeric_limits<T>::max(), static_cast<T>(1)));
EXPECT_EQ(std::numeric_limits<T>::max(),
SaturatingAdd(static_cast<T>(1), std::numeric_limits<T>::max()));
EXPECT_EQ(std::numeric_limits<T>::max(),
SaturatingAdd(std::numeric_limits<T>::max(),
std::numeric_limits<T>::max()));
}
TEST(MathExtras, SaturatingAdd) {
SaturatingAddTestHelper<uint8_t>();
SaturatingAddTestHelper<uint16_t>();
SaturatingAddTestHelper<uint32_t>();
SaturatingAddTestHelper<uint64_t>();
}
template<typename T>
void SaturatingMultiplyTestHelper()
{
EXPECT_EQ(static_cast<T>(0),
SaturatingMultiply(static_cast<T>(1), static_cast<T>(0)));
EXPECT_EQ(static_cast<T>(0),
SaturatingMultiply(static_cast<T>(0), static_cast<T>(1)));
EXPECT_EQ(static_cast<T>(6),
SaturatingMultiply(static_cast<T>(2), static_cast<T>(3)));
EXPECT_EQ(std::numeric_limits<T>::max(),
SaturatingMultiply(std::numeric_limits<T>::max(),
static_cast<T>(2)));
EXPECT_EQ(std::numeric_limits<T>::max(),
SaturatingMultiply(static_cast<T>(2),
std::numeric_limits<T>::max()));
EXPECT_EQ(std::numeric_limits<T>::max(),
SaturatingMultiply(std::numeric_limits<T>::max(),
std::numeric_limits<T>::max()));
}
TEST(MathExtras, SaturatingMultiply) {
SaturatingMultiplyTestHelper<uint8_t>();
SaturatingMultiplyTestHelper<uint16_t>();
SaturatingMultiplyTestHelper<uint32_t>();
SaturatingMultiplyTestHelper<uint64_t>();
}
}