mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-12-20 18:48:13 +00:00
31 lines
1.4 KiB
C++
31 lines
1.4 KiB
C++
//===- RSProfiling.cpp - Various profiling using random sampling ----------===//
|
|
//
|
|
// The LLVM Compiler Infrastructure
|
|
//
|
|
// This file was developed by the LLVM research group and is distributed under
|
|
// the University of Illinois Open Source License. See LICENSE.TXT for details.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
//
|
|
// This file defines the abstract interface that a profiler must implement to
|
|
// support the random profiling transform.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
namespace llvm {
|
|
//===--------------------------------------------------------------------===//
|
|
/// RSProfilers - The basic Random Sampling Profiler Interface Any profiler
|
|
/// that implements this interface can be transformed by the random sampling
|
|
/// pass to be sample based rather than always on.
|
|
///
|
|
/// The only exposed function can be queried to find out if an instruction
|
|
/// was original or if it was inserted by the profiler. Implementations of
|
|
/// this interface are expected to chain to other implementations, such that
|
|
/// multiple profilers can be support simultaniously.
|
|
struct RSProfilers : public ModulePass {
|
|
/// isProfiling - This method returns true if the value passed it was
|
|
/// inserted by the profiler.
|
|
virtual bool isProfiling(Value* v) = 0;
|
|
};
|
|
}
|