commit d2a7bedbc9d3db35ff424a6a2d257c72341af224
author Andrew Trick <atrick@apple.com> Wed Feb 08 21:22:30 2012 +0000
committer Andrew Trick <atrick@apple.com> Wed Feb 08 21:22:30 2012 +0000
tree 1be8e6106f43feaaf69186720e95d598e05d6e85
parent a94e635cec8dff2c9b39343643fe204dfab390dc

Move pass configuration out of pass constructors: TailDuplicate::PreRegAlloc

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150091 91177308-0d34-0410-b5e6-96231b3b80d8

lib/CodeGen/Passes.cpp

diff --git a/lib/CodeGen/Passes.cpp b/lib/CodeGen/Passes.cpp
index 21d8714..eb56734 100644
--- a/lib/CodeGen/Passes.cpp
+++ b/lib/CodeGen/Passes.cpp
@@ -178,7 +178,7 @@
 
   // Pre-ra tail duplication.
   if (getOptLevel() != CodeGenOpt::None && !DisableEarlyTailDup) {
-    PM.add(createTailDuplicatePass(true));
+    PM.add(createTailDuplicatePass());
     printAndVerify("After Pre-RegAlloc TailDuplicate");
   }
 
@@ -250,7 +250,7 @@
 
   // Tail duplication.
   if (getOptLevel() != CodeGenOpt::None && !DisableTailDuplicate) {
-    PM.add(createTailDuplicatePass(false));
+    PM.add(createTailDuplicatePass());
     printNoVerify("After TailDuplicate");
   }
 

lib/CodeGen/TailDuplication.cpp

diff --git a/lib/CodeGen/TailDuplication.cpp b/lib/CodeGen/TailDuplication.cpp
index 031377b..ac4e2c4 100644
--- a/lib/CodeGen/TailDuplication.cpp
+++ b/lib/CodeGen/TailDuplication.cpp
@@ -56,10 +56,10 @@
 namespace {
   /// TailDuplicatePass - Perform tail duplication.
   class TailDuplicatePass : public MachineFunctionPass {
-    bool PreRegAlloc;
     const TargetInstrInfo *TII;
     MachineModuleInfo *MMI;
     MachineRegisterInfo *MRI;
+    bool PreRegAlloc;
 
     // SSAUpdateVRs - A list of virtual registers for which to update SSA form.
     SmallVector<unsigned, 16> SSAUpdateVRs;
@@ -70,8 +70,8 @@
 
   public:
     static char ID;
-    explicit TailDuplicatePass(bool PreRA) :
-      MachineFunctionPass(ID), PreRegAlloc(PreRA) {}
+    explicit TailDuplicatePass() :
+      MachineFunctionPass(ID), PreRegAlloc(false) {}
 
     virtual bool runOnMachineFunction(MachineFunction &MF);
     virtual const char *getPassName() const { return "Tail Duplication"; }
@@ -118,14 +118,15 @@
   char TailDuplicatePass::ID = 0;
 }
 
-FunctionPass *llvm::createTailDuplicatePass(bool PreRegAlloc) {
-  return new TailDuplicatePass(PreRegAlloc);
+FunctionPass *llvm::createTailDuplicatePass() {
+  return new TailDuplicatePass();
 }
 
 bool TailDuplicatePass::runOnMachineFunction(MachineFunction &MF) {
   TII = MF.getTarget().getInstrInfo();
   MRI = &MF.getRegInfo();
   MMI = getAnalysisIfAvailable<MachineModuleInfo>();
+  PreRegAlloc = MRI->isSSA();
 
   bool MadeChange = false;
   while (TailDuplicateBlocks(MF))
@@ -823,7 +824,7 @@
   SmallVector<MachineOperand, 4> PriorCond;
   // This has to check PrevBB->succ_size() because EH edges are ignored by
   // AnalyzeBranch.
-  if (PrevBB->succ_size() == 1 && 
+  if (PrevBB->succ_size() == 1 &&
       !TII->AnalyzeBranch(*PrevBB, PriorTBB, PriorFBB, PriorCond, true) &&
       PriorCond.empty() && !PriorTBB && TailBB->pred_size() == 1 &&
       !TailBB->hasAddressTaken()) {