Rename the PerformTailCallOpt variable to GuaranteedTailCallOpt to reflect

its current purpose.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95564 91177308-0d34-0410-b5e6-96231b3b80d8

2 files changed, 13 insertions, 13 deletions

diff --git a/lib/Target/PowerPC/PPCISelLowering.cpp b/lib/Target/PowerPC/PPCISelLowering.cpp
index 2a4fb02..a11d624 100644
--- a/lib/Target/PowerPC/PPCISelLowering.cpp
+++ b/lib/Target/PowerPC/PPCISelLowering.cpp
@@ -1572,7 +1572,7 @@ PPCTargetLowering::LowerFormalArguments_SVR4(
 
   EVT PtrVT = DAG.getTargetLoweringInfo().getPointerTy();
   // Potential tail calls could cause overwriting of argument stack slots.
-  bool isImmutable = !(PerformTailCallOpt && (CallConv==CallingConv::Fast));
+  bool isImmutable = !(GuaranteedTailCallOpt && (CallConv==CallingConv::Fast));
   unsigned PtrByteSize = 4;
 
   // Assign locations to all of the incoming arguments.
@@ -1773,7 +1773,7 @@ PPCTargetLowering::LowerFormalArguments_Darwin(
   EVT PtrVT = DAG.getTargetLoweringInfo().getPointerTy();
   bool isPPC64 = PtrVT == MVT::i64;
   // Potential tail calls could cause overwriting of argument stack slots.
-  bool isImmutable = !(PerformTailCallOpt && (CallConv==CallingConv::Fast));
+  bool isImmutable = !(GuaranteedTailCallOpt && (CallConv==CallingConv::Fast));
   unsigned PtrByteSize = isPPC64 ? 8 : 4;
 
   unsigned ArgOffset = PPCFrameInfo::getLinkageSize(isPPC64, true);
@@ -2164,7 +2164,7 @@ CalculateParameterAndLinkageAreaSize(SelectionDAG &DAG,
                       PPCFrameInfo::getMinCallFrameSize(isPPC64, true));
 
   // Tail call needs the stack to be aligned.
-  if (CC==CallingConv::Fast && PerformTailCallOpt) {
+  if (CC==CallingConv::Fast && GuaranteedTailCallOpt) {
     unsigned TargetAlign = DAG.getMachineFunction().getTarget().getFrameInfo()->
       getStackAlignment();
     unsigned AlignMask = TargetAlign-1;
@@ -2200,7 +2200,7 @@ PPCTargetLowering::IsEligibleForTailCallOptimization(SDValue Callee,
                                                      bool isVarArg,
                                       const SmallVectorImpl<ISD::InputArg> &Ins,
                                                      SelectionDAG& DAG) const {
-  if (!PerformTailCallOpt)
+  if (!GuaranteedTailCallOpt)
     return false;
 
   // Variable argument functions are not supported.
@@ -2604,7 +2604,7 @@ PPCTargetLowering::FinishCall(CallingConv::ID CallConv, DebugLoc dl,
   // the stack. Account for this here so these bytes can be pushed back on in
   // PPCRegisterInfo::eliminateCallFramePseudoInstr.
   int BytesCalleePops =
-    (CallConv==CallingConv::Fast && PerformTailCallOpt) ? NumBytes : 0;
+    (CallConv==CallingConv::Fast && GuaranteedTailCallOpt) ? NumBytes : 0;
 
   if (InFlag.getNode())
     Ops.push_back(InFlag);
@@ -2720,7 +2720,7 @@ PPCTargetLowering::LowerCall_SVR4(SDValue Chain, SDValue Callee,
   // and restoring the callers stack pointer in this functions epilog. This is
   // done because by tail calling the called function might overwrite the value
   // in this function's (MF) stack pointer stack slot 0(SP).
-  if (PerformTailCallOpt && CallConv==CallingConv::Fast)
+  if (GuaranteedTailCallOpt && CallConv==CallingConv::Fast)
     MF.getInfo<PPCFunctionInfo>()->setHasFastCall();
   
   // Count how many bytes are to be pushed on the stack, including the linkage
@@ -2923,7 +2923,7 @@ PPCTargetLowering::LowerCall_Darwin(SDValue Chain, SDValue Callee,
   // and restoring the callers stack pointer in this functions epilog. This is
   // done because by tail calling the called function might overwrite the value
   // in this function's (MF) stack pointer stack slot 0(SP).
-  if (PerformTailCallOpt && CallConv==CallingConv::Fast)
+  if (GuaranteedTailCallOpt && CallConv==CallingConv::Fast)
     MF.getInfo<PPCFunctionInfo>()->setHasFastCall();
 
   unsigned nAltivecParamsAtEnd = 0;
diff --git a/lib/Target/PowerPC/PPCRegisterInfo.cpp b/lib/Target/PowerPC/PPCRegisterInfo.cpp
index 0c3c8eb..ad2cdcf 100644
--- a/lib/Target/PowerPC/PPCRegisterInfo.cpp
+++ b/lib/Target/PowerPC/PPCRegisterInfo.cpp
@@ -406,7 +406,7 @@ PPCRegisterInfo::getCalleeSavedRegClasses(const MachineFunction *MF) const {
 static bool needsFP(const MachineFunction &MF) {
   const MachineFrameInfo *MFI = MF.getFrameInfo();
   return NoFramePointerElim || MFI->hasVarSizedObjects() ||
-    (PerformTailCallOpt && MF.getInfo<PPCFunctionInfo>()->hasFastCall());
+    (GuaranteedTailCallOpt && MF.getInfo<PPCFunctionInfo>()->hasFastCall());
 }
 
 static bool spillsCR(const MachineFunction &MF) {
@@ -486,7 +486,7 @@ static bool MustSaveLR(const MachineFunction &MF, unsigned LR) {
 void PPCRegisterInfo::
 eliminateCallFramePseudoInstr(MachineFunction &MF, MachineBasicBlock &MBB,
                               MachineBasicBlock::iterator I) const {
-  if (PerformTailCallOpt && I->getOpcode() == PPC::ADJCALLSTACKUP) {
+  if (GuaranteedTailCallOpt && I->getOpcode() == PPC::ADJCALLSTACKUP) {
     // Add (actually subtract) back the amount the callee popped on return.
     if (int CalleeAmt =  I->getOperand(1).getImm()) {
       bool is64Bit = Subtarget.isPPC64();
@@ -1050,7 +1050,7 @@ PPCRegisterInfo::processFunctionBeforeCalleeSavedScan(MachineFunction &MF,
 
   // Reserve stack space to move the linkage area to in case of a tail call.
   int TCSPDelta = 0;
-  if (PerformTailCallOpt && (TCSPDelta = FI->getTailCallSPDelta()) < 0) {
+  if (GuaranteedTailCallOpt && (TCSPDelta = FI->getTailCallSPDelta()) < 0) {
     MF.getFrameInfo()->CreateFixedObject(-1 * TCSPDelta, TCSPDelta,
                                          true, false);
   }
@@ -1160,7 +1160,7 @@ PPCRegisterInfo::processFunctionBeforeFrameFinalized(MachineFunction &MF)
 
   // Take into account stack space reserved for tail calls.
   int TCSPDelta = 0;
-  if (PerformTailCallOpt && (TCSPDelta = PFI->getTailCallSPDelta()) < 0) {
+  if (GuaranteedTailCallOpt && (TCSPDelta = PFI->getTailCallSPDelta()) < 0) {
     LowerBound = TCSPDelta;
   }
 
@@ -1575,7 +1575,7 @@ void PPCRegisterInfo::emitEpilogue(MachineFunction &MF,
     // The loaded (or persistent) stack pointer value is offset by the 'stwu'
     // on entry to the function.  Add this offset back now.
     if (!isPPC64) {
-      // If this function contained a fastcc call and PerformTailCallOpt is
+      // If this function contained a fastcc call and GuaranteedTailCallOpt is
       // enabled (=> hasFastCall()==true) the fastcc call might contain a tail
       // call which invalidates the stack pointer value in SP(0). So we use the
       // value of R31 in this case.
@@ -1654,7 +1654,7 @@ void PPCRegisterInfo::emitEpilogue(MachineFunction &MF,
 
   // Callee pop calling convention. Pop parameter/linkage area. Used for tail
   // call optimization
-  if (PerformTailCallOpt && RetOpcode == PPC::BLR &&
+  if (GuaranteedTailCallOpt && RetOpcode == PPC::BLR &&
       MF.getFunction()->getCallingConv() == CallingConv::Fast) {
      PPCFunctionInfo *FI = MF.getInfo<PPCFunctionInfo>();
      unsigned CallerAllocatedAmt = FI->getMinReservedArea();