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| author | Michael Gottesman <mgottesman@apple.com> | 2013-12-14 02:24:22 +0000 |
|---|---|---|
| committer | Michael Gottesman <mgottesman@apple.com> | 2013-12-14 02:24:22 +0000 |
| commit | 1b98ef1c19082fb49bf6db7b008eec33361e1080 (patch) | |
| tree | 2a14da4524f8fd0aa01a5405b03fe23a36dad9d5 /unittests | |
| parent | 7cc5f793bc858e4be4fbf532942d14013f123e55 (diff) | |
[block-freq] Add a right shift to BlockFrequency that saturates at 1.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@197302 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'unittests')
| -rw-r--r-- | unittests/Support/BlockFrequencyTest.cpp | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/unittests/Support/BlockFrequencyTest.cpp b/unittests/Support/BlockFrequencyTest.cpp index ffdea2c1790..c3184515046 100644 --- a/unittests/Support/BlockFrequencyTest.cpp +++ b/unittests/Support/BlockFrequencyTest.cpp @@ -237,4 +237,12 @@ TEST(BlockFrequencyTest, ProbabilityCompare) { EXPECT_FALSE(BigZero >= BigOne); } +TEST(BlockFrequencyTest, SaturatingRightShift) { + BlockFrequency Freq(0x10080ULL); + Freq >>= 2; + EXPECT_EQ(Freq.getFrequency(), 0x4020ULL); + Freq >>= 20; + EXPECT_EQ(Freq.getFrequency(), 0x1ULL); +} + } |