Added documented rsprofiler interface. Also remove new profiler passes, the

old ones have been updated to implement the interface.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24499 91177308-0d34-0410-b5e6-96231b3b80d8

3 files changed, 30 insertions, 4 deletions

diff --git a/include/llvm/Transforms/Instrumentation.h b/include/llvm/Transforms/Instrumentation.h
index 84e3e54..bc3e9e4 100644
--- a/include/llvm/Transforms/Instrumentation.h
+++ b/include/llvm/Transforms/Instrumentation.h
@@ -44,8 +44,6 @@ ModulePass *createTraceBasicBlockPass();
 FunctionPass *createProfilePathsPass();
 
 // Random Sampling Profiling Framework
-ModulePass* createBlockProfilerRSPass();
-ModulePass* createFunctionProfilerRSPass();
 ModulePass* createNullProfilerRSPass();
 FunctionPass* createRSProfilingPass();
 
diff --git a/include/llvm/Transforms/LinkAllPasses.h b/include/llvm/Transforms/LinkAllPasses.h
index f9ec5f1..2ec63ce 100644
--- a/include/llvm/Transforms/LinkAllPasses.h
+++ b/include/llvm/Transforms/LinkAllPasses.h
@@ -106,8 +106,6 @@ namespace {
       (void) llvm::createTraceValuesPassForFunction();
       (void) llvm::createUnifyFunctionExitNodesPass();
       (void) llvm::createCondPropagationPass();
-      (void) llvm::createBlockProfilerRSPass();
-      (void) llvm::createFunctionProfilerRSPass();
       (void) llvm::createNullProfilerRSPass();
       (void) llvm::createRSProfilingPass();
 
diff --git a/include/llvm/Transforms/RSProfiling.h b/include/llvm/Transforms/RSProfiling.h
new file mode 100644
index 0000000..897f63e
--- /dev/null
+++ b/include/llvm/Transforms/RSProfiling.h
@@ -0,0 +1,30 @@
+//===- 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;
+  };
+};