From 7b3392326c40c3c20697816acae597ba7b3144eb Mon Sep 17 00:00:00 2001
From: dim <dim@FreeBSD.org>
Date: Thu, 20 Oct 2011 21:10:27 +0000
Subject: Vendor import of llvm release_30 branch r142614:
http://llvm.org/svn/llvm-project/llvm/branches/release_30@142614
---
unittests/Support/BlockFrequencyTest.cpp | 56 ++++++++++++++++++++++++++++++++
1 file changed, 56 insertions(+)
create mode 100644 unittests/Support/BlockFrequencyTest.cpp
(limited to 'unittests/Support/BlockFrequencyTest.cpp')
diff --git a/unittests/Support/BlockFrequencyTest.cpp b/unittests/Support/BlockFrequencyTest.cpp
new file mode 100644
index 0000000..edeea9b
--- /dev/null
+++ b/unittests/Support/BlockFrequencyTest.cpp
@@ -0,0 +1,56 @@
+#include "llvm/Support/DataTypes.h"
+#include "llvm/Support/BlockFrequency.h"
+#include "llvm/Support/BranchProbability.h"
+
+#include "gtest/gtest.h"
+#include <climits>
+
+using namespace llvm;
+
+namespace {
+
+TEST(BlockFrequencyTest, OneToZero) {
+ BlockFrequency Freq(1);
+ BranchProbability Prob(UINT32_MAX - 1, UINT32_MAX);
+ Freq *= Prob;
+ EXPECT_EQ(Freq.getFrequency(), 0u);
+}
+
+TEST(BlockFrequencyTest, OneToOne) {
+ BlockFrequency Freq(1);
+ BranchProbability Prob(UINT32_MAX, UINT32_MAX);
+ Freq *= Prob;
+ EXPECT_EQ(Freq.getFrequency(), 1u);
+}
+
+TEST(BlockFrequencyTest, ThreeToOne) {
+ BlockFrequency Freq(3);
+ BranchProbability Prob(3000000, 9000000);
+ Freq *= Prob;
+ EXPECT_EQ(Freq.getFrequency(), 1u);
+}
+
+TEST(BlockFrequencyTest, MaxToHalfMax) {
+ BlockFrequency Freq(UINT64_MAX);
+ BranchProbability Prob(UINT32_MAX / 2, UINT32_MAX);
+ Freq *= Prob;
+ EXPECT_EQ(Freq.getFrequency(), 9223372034707292159LLu);
+}
+
+TEST(BlockFrequencyTest, BigToBig) {
+ const uint64_t Big = 387246523487234346LL;
+ const uint32_t P = 123456789;
+ BlockFrequency Freq(Big);
+ BranchProbability Prob(P, P);
+ Freq *= Prob;
+ EXPECT_EQ(Freq.getFrequency(), Big);
+}
+
+TEST(BlockFrequencyTest, MaxToMax) {
+ BlockFrequency Freq(UINT64_MAX);
+ BranchProbability Prob(UINT32_MAX, UINT32_MAX);
+ Freq *= Prob;
+ EXPECT_EQ(Freq.getFrequency(), UINT64_MAX);
+}
+
+}
--
cgit v1.1