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
---
include/llvm/Support/BranchProbability.h | 50 ++++++++++++++++++++++++++++++++
1 file changed, 50 insertions(+)
create mode 100644 include/llvm/Support/BranchProbability.h
(limited to 'include/llvm/Support/BranchProbability.h')
diff --git a/include/llvm/Support/BranchProbability.h b/include/llvm/Support/BranchProbability.h
new file mode 100644
index 0000000..7ba6491
--- /dev/null
+++ b/include/llvm/Support/BranchProbability.h
@@ -0,0 +1,50 @@
+//===- BranchProbability.h - Branch Probability Analysis --------*- C++ -*-===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// Definition of BranchProbability shared by IR and Machine Instructions.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_SUPPORT_BRANCHPROBABILITY_H
+#define LLVM_SUPPORT_BRANCHPROBABILITY_H
+
+#include "llvm/Support/DataTypes.h"
+
+namespace llvm {
+
+class raw_ostream;
+class BranchProbabilityInfo;
+class MachineBranchProbabilityInfo;
+class MachineBasicBlock;
+
+// This class represents Branch Probability as a non-negative fraction.
+class BranchProbability {
+ friend class BranchProbabilityInfo;
+ friend class MachineBranchProbabilityInfo;
+ friend class MachineBasicBlock;
+
+ // Numerator
+ uint32_t N;
+
+ // Denominator
+ uint32_t D;
+
+ BranchProbability(uint32_t n, uint32_t d);
+
+public:
+ raw_ostream &print(raw_ostream &OS) const;
+
+ void dump() const;
+};
+
+raw_ostream &operator<<(raw_ostream &OS, const BranchProbability &Prob);
+
+}
+
+#endif
--
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