From ece02cd5829cea836e9365b0845a8ef042d17b0a Mon Sep 17 00:00:00 2001
From: dim <dim@FreeBSD.org>
Date: Sun, 12 Jun 2011 15:42:51 +0000
Subject: Vendor import of llvm trunk r132879:
 http://llvm.org/svn/llvm-project/llvm/trunk@132879

---
 lib/Support/BranchProbability.cpp | 44 +++++++++++++++++++++++++++++++++++++++
 1 file changed, 44 insertions(+)
 create mode 100644 lib/Support/BranchProbability.cpp

(limited to 'lib/Support/BranchProbability.cpp')

diff --git a/lib/Support/BranchProbability.cpp b/lib/Support/BranchProbability.cpp
new file mode 100644
index 0000000..97342da
--- /dev/null
+++ b/lib/Support/BranchProbability.cpp
@@ -0,0 +1,44 @@
+//===-------------- lib/Support/BranchProbability.cpp -----------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This file implements Branch Probability class.
+//
+//===----------------------------------------------------------------------===//
+
+#include "llvm/Support/BranchProbability.h"
+#include "llvm/Support/Debug.h"
+#include "llvm/Support/raw_ostream.h"
+
+using namespace llvm;
+
+BranchProbability::BranchProbability(uint32_t n, uint32_t d) {
+  assert(d > 0 && "Denomiator cannot be 0!");
+  assert(n <= d && "Probability cannot be bigger than 1!");
+  N = n;
+  D = d;
+}
+
+raw_ostream &BranchProbability::print(raw_ostream &OS) const {
+  OS << N << " / " << D << " = " << ((double)N / D);
+  return OS;
+}
+
+void BranchProbability::dump() const {
+  print(dbgs());
+  dbgs() << "\n";
+}
+
+namespace llvm {
+
+raw_ostream &operator<<(raw_ostream &OS, const BranchProbability &Prob) {
+  Prob.print(OS);
+  return OS;
+}
+
+}
-- 
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