Vendor import of llvm trunk r154661:

http://llvm.org/svn/llvm-project/llvm/trunk@r154661

1 files changed, 29 insertions, 0 deletions

diff --git a/unittests/Support/BlockFrequencyTest.cpp b/unittests/Support/BlockFrequencyTest.cpp
index edeea9b..df25642 100644
--- a/unittests/Support/BlockFrequencyTest.cpp
+++ b/unittests/Support/BlockFrequencyTest.cpp
@@ -53,4 +53,33 @@ TEST(BlockFrequencyTest, MaxToMax) {
   EXPECT_EQ(Freq.getFrequency(), UINT64_MAX);
 }
 
+TEST(BlockFrequencyTest, ProbabilityCompare) {
+  BranchProbability A(4, 5);
+  BranchProbability B(4U << 29, 5U << 29);
+  BranchProbability C(3, 4);
+
+  EXPECT_TRUE(A == B);
+  EXPECT_FALSE(A != B);
+  EXPECT_FALSE(A < B);
+  EXPECT_FALSE(A > B);
+  EXPECT_TRUE(A <= B);
+  EXPECT_TRUE(A >= B);
+
+  EXPECT_FALSE(B == C);
+  EXPECT_TRUE(B != C);
+  EXPECT_FALSE(B < C);
+  EXPECT_TRUE(B > C);
+  EXPECT_FALSE(B <= C);
+  EXPECT_TRUE(B >= C);
+
+  BranchProbability BigZero(0, UINT32_MAX);
+  BranchProbability BigOne(UINT32_MAX, UINT32_MAX);
+  EXPECT_FALSE(BigZero == BigOne);
+  EXPECT_TRUE(BigZero != BigOne);
+  EXPECT_TRUE(BigZero < BigOne);
+  EXPECT_FALSE(BigZero > BigOne);
+  EXPECT_TRUE(BigZero <= BigOne);
+  EXPECT_FALSE(BigZero >= BigOne);
+}
+
 }