| //===- 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); |
| }; |
| } |