[llvm-commits] [llvm] r45572 - in /llvm/trunk/lib/CodeGen: LLVMTargetMachine.cpp MachineLICM.cpp

[Bill Wendling]

Author: void
Date: Fri Jan  4 02:11:03 2008
New Revision: 45572

URL: http://llvm.org/viewvc/llvm-project?rev=45572&view=rev
Log:
Move option to enable machine LICM into LLVMTargetMachine.cpp.

Modified:
    llvm/trunk/lib/CodeGen/LLVMTargetMachine.cpp
    llvm/trunk/lib/CodeGen/MachineLICM.cpp

Modified: llvm/trunk/lib/CodeGen/LLVMTargetMachine.cpp
URL: 
http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/CodeGen/LLVMTargetMachine.cpp?rev=45572&r1=45571&r2=45572&view=diff

==============================================================================
--- llvm/trunk/lib/CodeGen/LLVMTargetMachine.cpp (original)
+++ llvm/trunk/lib/CodeGen/LLVMTargetMachine.cpp Fri Jan  4 02:11:03 2008
@@ -33,7 +33,10 @@
 static cl::opt<bool>
 EnableSinking("enable-sinking", cl::init(false), cl::Hidden,
               cl::desc("Perform sinking on machine code"));
-
+static cl::opt<bool>
+PerformLICM("machine-licm",
+            cl::init(false), cl::Hidden,
+            cl::desc("Perform loop-invariant code motion on machine code"));
 
 FileModel::Model
 LLVMTargetMachine::addPassesToEmitFile(FunctionPassManager &PM,
@@ -73,7 +76,8 @@
   if (PrintMachineCode)
     PM.add(createMachineFunctionPrinterPass(cerr));
 
-  PM.add(createMachineLICMPass());
+  if (PerformLICM)
+    PM.add(createMachineLICMPass());
   
   if (EnableSinking)
     PM.add(createMachineSinkingPass());
@@ -187,7 +191,8 @@
   if (PrintMachineCode)
     PM.add(createMachineFunctionPrinterPass(cerr));
 
-  PM.add(createMachineLICMPass());
+  if (PerformLICM)
+    PM.add(createMachineLICMPass());
 
   // Perform register allocation to convert to a concrete x86 representation
   PM.add(createRegisterAllocator());

Modified: llvm/trunk/lib/CodeGen/MachineLICM.cpp
URL: 
http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/CodeGen/MachineLICM.cpp?rev=45572&r1=45571&r2=45572&view=diff

==============================================================================
--- llvm/trunk/lib/CodeGen/MachineLICM.cpp (original)
+++ llvm/trunk/lib/CodeGen/MachineLICM.cpp Fri Jan  4 02:11:03 2008
@@ -28,14 +28,6 @@
 
 using namespace llvm;
 
-namespace {
-  // Hidden options to help debugging
-  cl::opt<bool>
-  PerformLICM("machine-licm",
-              cl::init(false), cl::Hidden,
-              cl::desc("Perform loop-invariant code motion on machine code"));
-}
-
 STATISTIC(NumHoisted, "Number of machine instructions hoisted out of loops");
 
 namespace {
@@ -167,8 +159,6 @@
 /// loop.
 ///
 bool MachineLICM::runOnMachineFunction(MachineFunction &MF) {
-  if (!PerformLICM) return false; // For debugging.
-
   DOUT << "******** Machine LICM ********\n";
 
   Changed = false;


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