[llvm] r194966 - Add a loop rerolling flag to the PassManagerBuilder

[Hal Finkel]

Author: hfinkel
Date: Sun Nov 17 10:02:50 2013
New Revision: 194966

URL: http://llvm.org/viewvc/llvm-project?rev=194966&view=rev
Log:
Add a loop rerolling flag to the PassManagerBuilder

This adds a boolean member variable to the PassManagerBuilder to control loop
rerolling (just like we have for unrolling and the various vectorization
options). This is necessary for control by the frontend. Loop rerolling remains
disabled by default at all optimization levels.

Modified:
    llvm/trunk/include/llvm/Transforms/IPO/PassManagerBuilder.h
    llvm/trunk/lib/Transforms/IPO/PassManagerBuilder.cpp

Modified: llvm/trunk/include/llvm/Transforms/IPO/PassManagerBuilder.h
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/include/llvm/Transforms/IPO/PassManagerBuilder.h?rev=194966&r1=194965&r2=194966&view=diff
==============================================================================
--- llvm/trunk/include/llvm/Transforms/IPO/PassManagerBuilder.h (original)
+++ llvm/trunk/include/llvm/Transforms/IPO/PassManagerBuilder.h Sun Nov 17 10:02:50 2013
@@ -112,6 +112,7 @@ public:
   bool SLPVectorize;
   bool LoopVectorize;
   bool LateVectorize;
+  bool RerollLoops;
 
 private:
   /// ExtensionList - This is list of all of the extensions that are registered.

Modified: llvm/trunk/lib/Transforms/IPO/PassManagerBuilder.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Transforms/IPO/PassManagerBuilder.cpp?rev=194966&r1=194965&r2=194966&view=diff
==============================================================================
--- llvm/trunk/lib/Transforms/IPO/PassManagerBuilder.cpp (original)
+++ llvm/trunk/lib/Transforms/IPO/PassManagerBuilder.cpp Sun Nov 17 10:02:50 2013
@@ -69,6 +69,7 @@ PassManagerBuilder::PassManagerBuilder()
     SLPVectorize = RunSLPVectorization;
     LoopVectorize = RunLoopVectorization;
     LateVectorize = LateVectorization;
+    RerollLoops = RunLoopRerolling;
 }
 
 PassManagerBuilder::~PassManagerBuilder() {
@@ -220,7 +221,7 @@ void PassManagerBuilder::populateModuleP
 
   addExtensionsToPM(EP_ScalarOptimizerLate, MPM);
 
-  if (RunLoopRerolling)
+  if (RerollLoops)
     MPM.add(createLoopRerollPass());
   if (SLPVectorize)
     MPM.add(createSLPVectorizerPass());   // Vectorize parallel scalar chains.