Move debug loc info along when the spiller creates new instructions.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@64342 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 65 insertions, 36 deletions

diff --git a/lib/Target/ARM/ARMInstrInfo.cpp b/lib/Target/ARM/ARMInstrInfo.cpp
index 0c55f93..8578284 100644
--- a/lib/Target/ARM/ARMInstrInfo.cpp
+++ b/lib/Target/ARM/ARMInstrInfo.cpp
@@ -243,17 +243,20 @@ ARMInstrInfo::convertToThreeAddress(MachineFunction::iterator &MFI,
         // Can't encode it in a so_imm operand. This transformation will
         // add more than 1 instruction. Abandon!
         return NULL;
-      UpdateMI = BuildMI(MF, get(isSub ? ARM::SUBri : ARM::ADDri), WBReg)
+      UpdateMI = BuildMI(MF, MI->getDebugLoc(),
+                         get(isSub ? ARM::SUBri : ARM::ADDri), WBReg)
         .addReg(BaseReg).addImm(SOImmVal)
         .addImm(Pred).addReg(0).addReg(0);
     } else if (Amt != 0) {
       ARM_AM::ShiftOpc ShOpc = ARM_AM::getAM2ShiftOpc(OffImm);
       unsigned SOOpc = ARM_AM::getSORegOpc(ShOpc, Amt);
-      UpdateMI = BuildMI(MF, get(isSub ? ARM::SUBrs : ARM::ADDrs), WBReg)
+      UpdateMI = BuildMI(MF, MI->getDebugLoc(),
+                         get(isSub ? ARM::SUBrs : ARM::ADDrs), WBReg)
         .addReg(BaseReg).addReg(OffReg).addReg(0).addImm(SOOpc)
         .addImm(Pred).addReg(0).addReg(0);
     } else 
-      UpdateMI = BuildMI(MF, get(isSub ? ARM::SUBrr : ARM::ADDrr), WBReg)
+      UpdateMI = BuildMI(MF, MI->getDebugLoc(),
+                         get(isSub ? ARM::SUBrr : ARM::ADDrr), WBReg)
         .addReg(BaseReg).addReg(OffReg)
         .addImm(Pred).addReg(0).addReg(0);
     break;
@@ -263,11 +266,13 @@ ARMInstrInfo::convertToThreeAddress(MachineFunction::iterator &MFI,
     unsigned Amt = ARM_AM::getAM3Offset(OffImm);
     if (OffReg == 0)
       // Immediate is 8-bits. It's guaranteed to fit in a so_imm operand.
-      UpdateMI = BuildMI(MF, get(isSub ? ARM::SUBri : ARM::ADDri), WBReg)
+      UpdateMI = BuildMI(MF, MI->getDebugLoc(),
+                         get(isSub ? ARM::SUBri : ARM::ADDri), WBReg)
         .addReg(BaseReg).addImm(Amt)
         .addImm(Pred).addReg(0).addReg(0);
     else
-      UpdateMI = BuildMI(MF, get(isSub ? ARM::SUBrr : ARM::ADDrr), WBReg)
+      UpdateMI = BuildMI(MF, MI->getDebugLoc(),
+                         get(isSub ? ARM::SUBrr : ARM::ADDrr), WBReg)
         .addReg(BaseReg).addReg(OffReg)
         .addImm(Pred).addReg(0).addReg(0);
     break;
@@ -277,19 +282,23 @@ ARMInstrInfo::convertToThreeAddress(MachineFunction::iterator &MFI,
   std::vector<MachineInstr*> NewMIs;
   if (isPre) {
     if (isLoad)
-      MemMI = BuildMI(MF, get(MemOpc), MI->getOperand(0).getReg())
+      MemMI = BuildMI(MF, MI->getDebugLoc(),
+                      get(MemOpc), MI->getOperand(0).getReg())
         .addReg(WBReg).addReg(0).addImm(0).addImm(Pred);
     else
-      MemMI = BuildMI(MF, get(MemOpc)).addReg(MI->getOperand(1).getReg())
+      MemMI = BuildMI(MF, MI->getDebugLoc(),
+                      get(MemOpc)).addReg(MI->getOperand(1).getReg())
         .addReg(WBReg).addReg(0).addImm(0).addImm(Pred);
     NewMIs.push_back(MemMI);
     NewMIs.push_back(UpdateMI);
   } else {
     if (isLoad)
-      MemMI = BuildMI(MF, get(MemOpc), MI->getOperand(0).getReg())
+      MemMI = BuildMI(MF, MI->getDebugLoc(),
+                      get(MemOpc), MI->getOperand(0).getReg())
         .addReg(BaseReg).addReg(0).addImm(0).addImm(Pred);
     else
-      MemMI = BuildMI(MF, get(MemOpc)).addReg(MI->getOperand(1).getReg())
+      MemMI = BuildMI(MF, MI->getDebugLoc(),
+                      get(MemOpc)).addReg(MI->getOperand(1).getReg())
         .addReg(BaseReg).addReg(0).addImm(0).addImm(Pred);
     if (WB.isDead())
       UpdateMI->getOperand(0).setIsDead();
@@ -474,19 +483,22 @@ bool ARMInstrInfo::copyRegToReg(MachineBasicBlock &MBB,
     return false;
   }
 
+  DebugLoc DL = DebugLoc::getUnknownLoc();
+  if (I != MBB.end()) DL = I->getDebugLoc();
+
   if (DestRC == ARM::GPRRegisterClass) {
     MachineFunction &MF = *MBB.getParent();
     ARMFunctionInfo *AFI = MF.getInfo<ARMFunctionInfo>();
     if (AFI->isThumbFunction())
-      BuildMI(MBB, I, get(ARM::tMOVr), DestReg).addReg(SrcReg);
+      BuildMI(MBB, I, DL, get(ARM::tMOVr), DestReg).addReg(SrcReg);
     else
-      AddDefaultCC(AddDefaultPred(BuildMI(MBB, I, get(ARM::MOVr), DestReg)
+      AddDefaultCC(AddDefaultPred(BuildMI(MBB, I, DL, get(ARM::MOVr), DestReg)
                                   .addReg(SrcReg)));
   } else if (DestRC == ARM::SPRRegisterClass)
-    AddDefaultPred(BuildMI(MBB, I, get(ARM::FCPYS), DestReg)
+    AddDefaultPred(BuildMI(MBB, I, DL, get(ARM::FCPYS), DestReg)
                    .addReg(SrcReg));
   else if (DestRC == ARM::DPRRegisterClass)
-    AddDefaultPred(BuildMI(MBB, I, get(ARM::FCPYD), DestReg)
+    AddDefaultPred(BuildMI(MBB, I, DL, get(ARM::FCPYD), DestReg)
                    .addReg(SrcReg));
   else
     return false;
@@ -512,33 +524,37 @@ void ARMInstrInfo::
 storeRegToStackSlot(MachineBasicBlock &MBB, MachineBasicBlock::iterator I,
                     unsigned SrcReg, bool isKill, int FI,
                     const TargetRegisterClass *RC) const {
+  DebugLoc DL = DebugLoc::getUnknownLoc();
+  if (I != MBB.end()) DL = I->getDebugLoc();
+
   if (RC == ARM::GPRRegisterClass) {
     MachineFunction &MF = *MBB.getParent();
     ARMFunctionInfo *AFI = MF.getInfo<ARMFunctionInfo>();
     if (AFI->isThumbFunction())
-      BuildMI(MBB, I, get(ARM::tSpill)).addReg(SrcReg, false, false, isKill)
+      BuildMI(MBB, I, DL, get(ARM::tSpill))
+        .addReg(SrcReg, false, false, isKill)
         .addFrameIndex(FI).addImm(0);
     else
-      AddDefaultPred(BuildMI(MBB, I, get(ARM::STR))
+      AddDefaultPred(BuildMI(MBB, I, DL, get(ARM::STR))
                      .addReg(SrcReg, false, false, isKill)
                      .addFrameIndex(FI).addReg(0).addImm(0));
   } else if (RC == ARM::DPRRegisterClass) {
-    AddDefaultPred(BuildMI(MBB, I, get(ARM::FSTD))
+    AddDefaultPred(BuildMI(MBB, I, DL, get(ARM::FSTD))
                    .addReg(SrcReg, false, false, isKill)
                    .addFrameIndex(FI).addImm(0));
   } else {
     assert(RC == ARM::SPRRegisterClass && "Unknown regclass!");
-    AddDefaultPred(BuildMI(MBB, I, get(ARM::FSTS))
+    AddDefaultPred(BuildMI(MBB, I, DL, get(ARM::FSTS))
                    .addReg(SrcReg, false, false, isKill)
                    .addFrameIndex(FI).addImm(0));
   }
 }
 
 void ARMInstrInfo::storeRegToAddr(MachineFunction &MF, unsigned SrcReg,
-                                     bool isKill,
-                                     SmallVectorImpl<MachineOperand> &Addr,
-                                     const TargetRegisterClass *RC,
-                                 SmallVectorImpl<MachineInstr*> &NewMIs) const {
+                                  bool isKill,
+                                  SmallVectorImpl<MachineOperand> &Addr,
+                                  const TargetRegisterClass *RC,
+                                  SmallVectorImpl<MachineInstr*> &NewMIs) const{
   unsigned Opc = 0;
   if (RC == ARM::GPRRegisterClass) {
     ARMFunctionInfo *AFI = MF.getInfo<ARMFunctionInfo>();
@@ -572,28 +588,31 @@ void ARMInstrInfo::
 loadRegFromStackSlot(MachineBasicBlock &MBB, MachineBasicBlock::iterator I,
                      unsigned DestReg, int FI,
                      const TargetRegisterClass *RC) const {
+  DebugLoc DL = DebugLoc::getUnknownLoc();
+  if (I != MBB.end()) DL = I->getDebugLoc();
+
   if (RC == ARM::GPRRegisterClass) {
     MachineFunction &MF = *MBB.getParent();
     ARMFunctionInfo *AFI = MF.getInfo<ARMFunctionInfo>();
     if (AFI->isThumbFunction())
-      BuildMI(MBB, I, get(ARM::tRestore), DestReg)
+      BuildMI(MBB, I, DL, get(ARM::tRestore), DestReg)
         .addFrameIndex(FI).addImm(0);
     else
-      AddDefaultPred(BuildMI(MBB, I, get(ARM::LDR), DestReg)
+      AddDefaultPred(BuildMI(MBB, I, DL, get(ARM::LDR), DestReg)
                      .addFrameIndex(FI).addReg(0).addImm(0));
   } else if (RC == ARM::DPRRegisterClass) {
-    AddDefaultPred(BuildMI(MBB, I, get(ARM::FLDD), DestReg)
+    AddDefaultPred(BuildMI(MBB, I, DL, get(ARM::FLDD), DestReg)
                    .addFrameIndex(FI).addImm(0));
   } else {
     assert(RC == ARM::SPRRegisterClass && "Unknown regclass!");
-    AddDefaultPred(BuildMI(MBB, I, get(ARM::FLDS), DestReg)
+    AddDefaultPred(BuildMI(MBB, I, DL, get(ARM::FLDS), DestReg)
                    .addFrameIndex(FI).addImm(0));
   }
 }
 
 void ARMInstrInfo::loadRegFromAddr(MachineFunction &MF, unsigned DestReg,
-                                      SmallVectorImpl<MachineOperand> &Addr,
-                                      const TargetRegisterClass *RC,
+                                   SmallVectorImpl<MachineOperand> &Addr,
+                                   const TargetRegisterClass *RC,
                                  SmallVectorImpl<MachineInstr*> &NewMIs) const {
   unsigned Opc = 0;
   if (RC == ARM::GPRRegisterClass) {
@@ -630,7 +649,10 @@ bool ARMInstrInfo::spillCalleeSavedRegisters(MachineBasicBlock &MBB,
   if (!AFI->isThumbFunction() || CSI.empty())
     return false;
 
-  MachineInstrBuilder MIB = BuildMI(MBB, MI, get(ARM::tPUSH));
+  DebugLoc DL = DebugLoc::getUnknownLoc();
+  if (MI != MBB.end()) DL = MI->getDebugLoc();
+
+  MachineInstrBuilder MIB = BuildMI(MBB, MI, DL, get(ARM::tPUSH));
   for (unsigned i = CSI.size(); i != 0; --i) {
     unsigned Reg = CSI[i-1].getReg();
     // Add the callee-saved register as live-in. It's killed at the spill.
@@ -686,12 +708,14 @@ MachineInstr *ARMInstrInfo::foldMemoryOperandImpl(MachineFunction &MF,
     if (OpNum == 0) { // move -> store
       unsigned SrcReg = MI->getOperand(1).getReg();
       bool isKill = MI->getOperand(1).isKill();
-      NewMI = BuildMI(MF, get(ARM::STR)).addReg(SrcReg, false, false, isKill)
+      NewMI = BuildMI(MF, MI->getDebugLoc(), get(ARM::STR))
+        .addReg(SrcReg, false, false, isKill)
         .addFrameIndex(FI).addReg(0).addImm(0).addImm(Pred).addReg(PredReg);
     } else {          // move -> load
       unsigned DstReg = MI->getOperand(0).getReg();
       bool isDead = MI->getOperand(0).isDead();
-      NewMI = BuildMI(MF, get(ARM::LDR)).addReg(DstReg, true, false, false, isDead)
+      NewMI = BuildMI(MF, MI->getDebugLoc(), get(ARM::LDR))
+        .addReg(DstReg, true, false, false, isDead)
         .addFrameIndex(FI).addReg(0).addImm(0).addImm(Pred).addReg(PredReg);
     }
     break;
@@ -703,7 +727,8 @@ MachineInstr *ARMInstrInfo::foldMemoryOperandImpl(MachineFunction &MF,
       if (RI.isPhysicalRegister(SrcReg) && !RI.isLowRegister(SrcReg))
         // tSpill cannot take a high register operand.
         break;
-      NewMI = BuildMI(MF, get(ARM::tSpill)).addReg(SrcReg, false, false, isKill)
+      NewMI = BuildMI(MF, MI->getDebugLoc(), get(ARM::tSpill))
+        .addReg(SrcReg, false, false, isKill)
         .addFrameIndex(FI).addImm(0);
     } else {          // move -> load
       unsigned DstReg = MI->getOperand(0).getReg();
@@ -711,7 +736,7 @@ MachineInstr *ARMInstrInfo::foldMemoryOperandImpl(MachineFunction &MF,
         // tRestore cannot target a high register operand.
         break;
       bool isDead = MI->getOperand(0).isDead();
-      NewMI = BuildMI(MF, get(ARM::tRestore))
+      NewMI = BuildMI(MF, MI->getDebugLoc(), get(ARM::tRestore))
         .addReg(DstReg, true, false, false, isDead)
         .addFrameIndex(FI).addImm(0);
     }
@@ -722,11 +747,13 @@ MachineInstr *ARMInstrInfo::foldMemoryOperandImpl(MachineFunction &MF,
     unsigned PredReg = MI->getOperand(3).getReg();
     if (OpNum == 0) { // move -> store
       unsigned SrcReg = MI->getOperand(1).getReg();
-      NewMI = BuildMI(MF, get(ARM::FSTS)).addReg(SrcReg).addFrameIndex(FI)
+      NewMI = BuildMI(MF, MI->getDebugLoc(), get(ARM::FSTS))
+        .addReg(SrcReg).addFrameIndex(FI)
         .addImm(0).addImm(Pred).addReg(PredReg);
     } else {          // move -> load
       unsigned DstReg = MI->getOperand(0).getReg();
-      NewMI = BuildMI(MF, get(ARM::FLDS), DstReg).addFrameIndex(FI)
+      NewMI = BuildMI(MF, MI->getDebugLoc(), get(ARM::FLDS), DstReg)
+        .addFrameIndex(FI)
         .addImm(0).addImm(Pred).addReg(PredReg);
     }
     break;
@@ -737,12 +764,14 @@ MachineInstr *ARMInstrInfo::foldMemoryOperandImpl(MachineFunction &MF,
     if (OpNum == 0) { // move -> store
       unsigned SrcReg = MI->getOperand(1).getReg();
       bool isKill = MI->getOperand(1).isKill();
-      NewMI = BuildMI(MF, get(ARM::FSTD)).addReg(SrcReg, false, false, isKill)
+      NewMI = BuildMI(MF, MI->getDebugLoc(), get(ARM::FSTD))
+        .addReg(SrcReg, false, false, isKill)
         .addFrameIndex(FI).addImm(0).addImm(Pred).addReg(PredReg);
     } else {          // move -> load
       unsigned DstReg = MI->getOperand(0).getReg();
       bool isDead = MI->getOperand(0).isDead();
-      NewMI = BuildMI(MF, get(ARM::FLDD)).addReg(DstReg, true, false, false, isDead)
+      NewMI = BuildMI(MF, MI->getDebugLoc(), get(ARM::FLDD))
+        .addReg(DstReg, true, false, false, isDead)
         .addFrameIndex(FI).addImm(0).addImm(Pred).addReg(PredReg);
     }
     break;