Add compare operators to BranchProbability and use it to determine if an edge is hot.
llvm-svn: 142751
diff --git a/llvm/unittests/Support/BlockFrequencyTest.cpp b/llvm/unittests/Support/BlockFrequencyTest.cpp
index edeea9b..ac3cedf 100644
--- a/llvm/unittests/Support/BlockFrequencyTest.cpp
+++ b/llvm/unittests/Support/BlockFrequencyTest.cpp
@@ -53,4 +53,24 @@
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);
+}
+
}