1 files changed, 10 insertions, 25 deletions

diff --git a/lib/CodeGen/MachineLICM.cpp b/lib/CodeGen/MachineLICM.cpp
index 94cdab5..2ab0467 100644
--- a/lib/CodeGen/MachineLICM.cpp
+++ b/lib/CodeGen/MachineLICM.cpp
@@ -39,6 +39,7 @@
 #include "llvm/Target/TargetLowering.h"
 #include "llvm/Target/TargetMachine.h"
 #include "llvm/Target/TargetRegisterInfo.h"
+#include "llvm/Target/TargetSubtargetInfo.h"
 using namespace llvm;
 
 #define DEBUG_TYPE "machine-licm"
@@ -61,7 +62,6 @@ STATISTIC(NumPostRAHoisted,
 
 namespace {
   class MachineLICM : public MachineFunctionPass {
-    const TargetMachine   *TM;
     const TargetInstrInfo *TII;
     const TargetLoweringBase *TLI;
     const TargetRegisterInfo *TRI;
@@ -142,9 +142,6 @@ namespace {
       RegPressure.clear();
       RegLimit.clear();
       BackTrace.clear();
-      for (DenseMap<unsigned,std::vector<const MachineInstr*> >::iterator
-             CI = CSEMap.begin(), CE = CSEMap.end(); CI != CE; ++CI)
-        CI->second.clear();
       CSEMap.clear();
     }
 
@@ -324,13 +321,12 @@ bool MachineLICM::runOnMachineFunction(MachineFunction &MF) {
     return false;
 
   Changed = FirstInLoop = false;
-  TM = &MF.getTarget();
-  TII = TM->getInstrInfo();
-  TLI = TM->getTargetLowering();
-  TRI = TM->getRegisterInfo();
+  TII = MF.getSubtarget().getInstrInfo();
+  TLI = MF.getSubtarget().getTargetLowering();
+  TRI = MF.getSubtarget().getRegisterInfo();
   MFI = MF.getFrameInfo();
   MRI = &MF.getRegInfo();
-  InstrItins = TM->getInstrItineraryData();
+  InstrItins = MF.getSubtarget().getInstrItineraryData();
 
   PreRegAlloc = MRI->isSSA();
 
@@ -822,7 +818,7 @@ void MachineLICM::InitRegPressure(MachineBasicBlock *BB) {
       if (!TargetRegisterInfo::isVirtualRegister(Reg))
         continue;
 
-      bool isNew = RegSeen.insert(Reg);
+      bool isNew = RegSeen.insert(Reg).second;
       unsigned RCId, RCCost;
       getRegisterClassIDAndCost(MI, Reg, i, RCId, RCCost);
       if (MO.isDef())
@@ -854,7 +850,7 @@ void MachineLICM::UpdateRegPressure(const MachineInstr *MI) {
     if (!TargetRegisterInfo::isVirtualRegister(Reg))
       continue;
 
-    bool isNew = RegSeen.insert(Reg);
+    bool isNew = RegSeen.insert(Reg).second;
     if (MO.isDef())
       Defs.push_back(Reg);
     else if (!isNew && isOperandKill(MO, MRI)) {
@@ -1299,15 +1295,7 @@ void MachineLICM::InitCSEMap(MachineBasicBlock *BB) {
   for (MachineBasicBlock::iterator I = BB->begin(),E = BB->end(); I != E; ++I) {
     const MachineInstr *MI = &*I;
     unsigned Opcode = MI->getOpcode();
-    DenseMap<unsigned, std::vector<const MachineInstr*> >::iterator
-      CI = CSEMap.find(Opcode);
-    if (CI != CSEMap.end())
-      CI->second.push_back(MI);
-    else {
-      std::vector<const MachineInstr*> CSEMIs;
-      CSEMIs.push_back(MI);
-      CSEMap.insert(std::make_pair(Opcode, CSEMIs));
-    }
+    CSEMap[Opcode].push_back(MI);
   }
 }
 
@@ -1447,11 +1435,8 @@ bool MachineLICM::Hoist(MachineInstr *MI, MachineBasicBlock *Preheader) {
     // Add to the CSE map.
     if (CI != CSEMap.end())
       CI->second.push_back(MI);
-    else {
-      std::vector<const MachineInstr*> CSEMIs;
-      CSEMIs.push_back(MI);
-      CSEMap.insert(std::make_pair(Opcode, CSEMIs));
-    }
+    else
+      CSEMap[Opcode].push_back(MI);
   }
 
   ++NumHoisted;