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[Support] Remove Count{Leading,Trailing}Zeros_{32,64}.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@182690 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Michael J. Spencer
2013-05-24 22:58:37 +00:00
parent 4e505a47c7
commit 3b77151a61
2 changed files with 15 additions and 133 deletions
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28
unittests/Support/MathExtrasTest.cpp
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@ -52,6 +52,18 @@ TEST(MathExtras, countLeadingZeros) {
EXPECT_EQ(10u, countLeadingZeros(NZ16));
EXPECT_EQ(26u, countLeadingZeros(NZ32));
EXPECT_EQ(58u, countLeadingZeros(NZ64));
EXPECT_EQ(8u, countLeadingZeros(0x00F000FFu));
EXPECT_EQ(8u, countLeadingZeros(0x00F12345u));
for (unsigned i = 0; i <= 30; ++i) {
EXPECT_EQ(31 - i, countLeadingZeros(1u << i));
}
EXPECT_EQ(8u, countLeadingZeros(0x00F1234500F12345ULL));
EXPECT_EQ(1u, countLeadingZeros(1ULL << 62));
for (unsigned i = 0; i <= 62; ++i) {
EXPECT_EQ(63 - i, countLeadingZeros(1ULL << i));
}
}
TEST(MathExtras, findFirstSet) {
@ -129,22 +141,6 @@ TEST(MathExtras, ByteSwap_64) {
EXPECT_EQ(0x1100FFEEDDCCBBAAULL, ByteSwap_64(0xAABBCCDDEEFF0011LL));
}
TEST(MathExtras, CountLeadingZeros_32) {
EXPECT_EQ(8u, CountLeadingZeros_32(0x00F000FF));
EXPECT_EQ(8u, CountLeadingZeros_32(0x00F12345));
for (unsigned i = 0; i <= 30; ++i) {
EXPECT_EQ(31 - i, CountLeadingZeros_32(1 << i));
}
}
TEST(MathExtras, CountLeadingZeros_64) {
EXPECT_EQ(8u, CountLeadingZeros_64(0x00F1234500F12345LL));
EXPECT_EQ(1u, CountLeadingZeros_64(1LL << 62));
for (unsigned i = 0; i <= 62; ++i) {
EXPECT_EQ(63 - i, CountLeadingZeros_64(1LL << i));
}
}
TEST(MathExtras, CountLeadingOnes_32) {
for (int i = 30; i >= 0; --i) {
// Start with all ones and unset some bit.