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authorDimitry Andric <dim@FreeBSD.org>2011-07-17 15:36:56 +0000
committerDimitry Andric <dim@FreeBSD.org>2011-07-17 15:36:56 +0000
commit411bd29eea3c360d5b48a18a17b5e87f5671af0e (patch)
treec8086addb211fa670a9d2b1038d8c2e453229755 /include/llvm/Support/BranchProbability.h
parent56fe8f14099930935e3870e3e823c322a85c1c89 (diff)
Diffstat (limited to 'include/llvm/Support/BranchProbability.h')
-rw-r--r--include/llvm/Support/BranchProbability.h16
1 files changed, 9 insertions, 7 deletions
diff --git a/include/llvm/Support/BranchProbability.h b/include/llvm/Support/BranchProbability.h
index 7ba649133b29..2e81490ebf66 100644
--- a/include/llvm/Support/BranchProbability.h
+++ b/include/llvm/Support/BranchProbability.h
@@ -19,15 +19,9 @@
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;
@@ -35,9 +29,17 @@ class BranchProbability {
// Denominator
uint32_t D;
+public:
BranchProbability(uint32_t n, uint32_t d);
-public:
+ uint32_t getNumerator() const { return N; }
+ uint32_t getDenominator() const { return D; }
+
+ // Return (1 - Probability).
+ BranchProbability getCompl() {
+ return BranchProbability(D - N, D);
+ }
+
raw_ostream &print(raw_ostream &OS) const;
void dump() const;