vendor/llvm/llvm-r72732

1 files changed, 31 insertions, 0 deletions

diff --git a/lib/Transforms/Instrumentation/RSProfiling.h b/lib/Transforms/Instrumentation/RSProfiling.h
new file mode 100644
index 0000000000000..8bbe7c7b28fe5
--- /dev/null
+++ b/lib/Transforms/Instrumentation/RSProfiling.h
@@ -0,0 +1,31 @@
+//===- RSProfiling.h - Various profiling using random sampling ----------===//
+//
+//                      The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// See notes in RSProfiling.cpp
+//
+//===----------------------------------------------------------------------===//
+#include "llvm/Transforms/RSProfiling.h"
+#include <set>
+
+namespace llvm {
+  /// RSProfilers_std - a simple support class for profilers that handles most
+  /// of the work of chaining and tracking inserted code.
+  struct RSProfilers_std : public RSProfilers {
+    static char ID;
+    std::set<Value*> profcode;
+    // Lookup up values in profcode
+    virtual bool isProfiling(Value* v);
+    // handles required chaining
+    virtual void getAnalysisUsage(AnalysisUsage &AU) const;
+    // places counter updates in basic blocks and recordes added instructions in
+    // profcode
+    void IncrementCounterInBlock(BasicBlock *BB, unsigned CounterNum,
+                                 GlobalValue *CounterArray);
+  };
+}