[llvm-commits] [llvm] r85609 - in /llvm/trunk: include/llvm/Transforms/Scalar.h lib/Transforms/Scalar/GVN.cpp

[Evan Cheng]

Author: evancheng
Date: Fri Oct 30 15:12:24 2009
New Revision: 85609

URL: http://llvm.org/viewvc/llvm-project?rev=85609&view=rev
Log:
Add option to createGVNPass to disable PRE.

Modified:
    llvm/trunk/include/llvm/Transforms/Scalar.h
    llvm/trunk/lib/Transforms/Scalar/GVN.cpp

Modified: llvm/trunk/include/llvm/Transforms/Scalar.h
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/include/llvm/Transforms/Scalar.h?rev=85609&r1=85608&r2=85609&view=diff

==============================================================================
--- llvm/trunk/include/llvm/Transforms/Scalar.h (original)
+++ llvm/trunk/include/llvm/Transforms/Scalar.h Fri Oct 30 15:12:24 2009
@@ -271,7 +271,7 @@
 // GVN - This pass performs global value numbering and redundant load 
 // elimination cotemporaneously.
 //
-FunctionPass *createGVNPass();
+FunctionPass *createGVNPass(bool NoPRE = false);
 
 //===----------------------------------------------------------------------===//
 //

Modified: llvm/trunk/lib/Transforms/Scalar/GVN.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Transforms/Scalar/GVN.cpp?rev=85609&r1=85608&r2=85609&view=diff

==============================================================================
--- llvm/trunk/lib/Transforms/Scalar/GVN.cpp (original)
+++ llvm/trunk/lib/Transforms/Scalar/GVN.cpp Fri Oct 30 15:12:24 2009
@@ -669,9 +669,10 @@
     bool runOnFunction(Function &F);
   public:
     static char ID; // Pass identification, replacement for typeid
-    GVN() : FunctionPass(&ID) { }
+    GVN(bool nopre = false) : FunctionPass(&ID), NoPRE(nopre) { }
 
   private:
+    bool NoPRE;
     MemoryDependenceAnalysis *MD;
     DominatorTree *DT;
 
@@ -710,7 +711,7 @@
 }
 
 // createGVNPass - The public interface to this file...
-FunctionPass *llvm::createGVNPass() { return new GVN(); }
+FunctionPass *llvm::createGVNPass(bool NoPRE) { return new GVN(NoPRE); }
 
 static RegisterPass<GVN> X("gvn",
                            "Global Value Numbering");