[llvm-commits] CVS: llvm/lib/Analysis/ProfileInfo.cpp

[Chris Lattner]

Changes in directory llvm/lib/Analysis:

ProfileInfo.cpp added (r1.1)

---
Log message:

An initial implementation of an LLVM ProfileInfo class which is designed to
eventually allow Passes to use profiling information to direct them.


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Diffs of the changes:  (+42 -0)

Index: llvm/lib/Analysis/ProfileInfo.cpp
diff -c /dev/null llvm/lib/Analysis/ProfileInfo.cpp:1.1
*** /dev/null	Tue Feb 10 16:12:01 2004
--- llvm/lib/Analysis/ProfileInfo.cpp	Tue Feb 10 16:11:21 2004
***************
*** 0 ****
--- 1,42 ----
+ //===- ProfileInfo.cpp - Profile Info Interface ---------------------------===//
+ // 
+ //                     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 implements the abstract ProfileInfo interface, and the default
+ // "no profile" implementation.
+ //
+ //===----------------------------------------------------------------------===//
+ 
+ #include "llvm/Analysis/ProfileInfo.h"
+ #include "llvm/Pass.h"
+ using namespace llvm;
+ 
+ // Register the AliasAnalysis interface, providing a nice name to refer to.
+ namespace {
+   RegisterAnalysisGroup<ProfileInfo> Z("Profile Information");
+ }
+ 
+ ProfileInfo::~ProfileInfo() {}
+ 
+ 
+ //===----------------------------------------------------------------------===//
+ //  NoProfile ProfileInfo implementation
+ //
+ 
+ namespace {
+   struct NoProfileInfo : public ImmutablePass, public ProfileInfo {
+     unsigned getExecutionCount(BasicBlock *BB) { return 0; }
+   };
+  
+   // Register this pass...
+   RegisterOpt<NoProfileInfo>
+   X("no-profile", "No Profile Information");
+ 
+   // Declare that we implement the AliasAnalysis interface
+   RegisterAnalysisGroup<ProfileInfo, NoProfileInfo> Y;
+ }  // End of anonymous namespace