diff options
Diffstat (limited to 'unittests')
| -rw-r--r-- | unittests/Support/BlockFrequencyTest.cpp | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/unittests/Support/BlockFrequencyTest.cpp b/unittests/Support/BlockFrequencyTest.cpp index 4bcddfebd9..ca420fccaa 100644 --- a/unittests/Support/BlockFrequencyTest.cpp +++ b/unittests/Support/BlockFrequencyTest.cpp @@ -68,6 +68,11 @@ TEST(BlockFrequencyTest, Saturate) { Freq = 0x1000000000000000ULL; Freq /= BranchProbability(10000, 160000); EXPECT_EQ(Freq.getFrequency(), UINT64_MAX); + + // Try to cheat the multiplication overflow check. + Freq = 0x00000001f0000001ull; + Freq /= BranchProbability(1000, 0xf000000f); + EXPECT_EQ(33506781356485509ULL, Freq.getFrequency()); } TEST(BlockFrequencyTest, ProbabilityCompare) { |