Revert "r225808 - [PowerPC] Add StackMap/PatchPoint support"

Reverting this while I investiage buildbot failures (segfaulting in
GetCostForDef at ScheduleDAGRRList.cpp:314).

llvm-svn: 225811
diff --git a/llvm/lib/Target/PowerPC/PPCAsmPrinter.cpp b/llvm/lib/Target/PowerPC/PPCAsmPrinter.cpp
index decc1b2..5648873 100644
--- a/llvm/lib/Target/PowerPC/PPCAsmPrinter.cpp
+++ b/llvm/lib/Target/PowerPC/PPCAsmPrinter.cpp
@@ -34,7 +34,6 @@
 #include "llvm/CodeGen/MachineInstrBuilder.h"
 #include "llvm/CodeGen/MachineModuleInfoImpls.h"
 #include "llvm/CodeGen/MachineRegisterInfo.h"
-#include "llvm/CodeGen/StackMaps.h"
 #include "llvm/CodeGen/TargetLoweringObjectFileImpl.h"
 #include "llvm/IR/Constants.h"
 #include "llvm/IR/DebugInfo.h"
@@ -70,11 +69,10 @@
     MapVector<MCSymbol*, MCSymbol*> TOC;
     const PPCSubtarget &Subtarget;
     uint64_t TOCLabelID;
-    StackMaps SM;
   public:
     explicit PPCAsmPrinter(TargetMachine &TM, MCStreamer &Streamer)
       : AsmPrinter(TM, Streamer),
-        Subtarget(TM.getSubtarget<PPCSubtarget>()), TOCLabelID(0), SM(*this) {}
+        Subtarget(TM.getSubtarget<PPCSubtarget>()), TOCLabelID(0) {}
 
     const char *getPassName() const override {
       return "PowerPC Assembly Printer";
@@ -92,13 +90,6 @@
     bool PrintAsmMemoryOperand(const MachineInstr *MI, unsigned OpNo,
                                unsigned AsmVariant, const char *ExtraCode,
                                raw_ostream &O) override;
-
-    void EmitEndOfAsmFile(Module &M) override;
-
-    void LowerSTACKMAP(MCStreamer &OutStreamer, StackMaps &SM,
-                       const MachineInstr &MI);
-    void LowerPATCHPOINT(MCStreamer &OutStreamer, StackMaps &SM,
-                         const MachineInstr &MI);
   };
 
   /// PPCLinuxAsmPrinter - PowerPC assembly printer, customized for Linux
@@ -325,80 +316,6 @@
   return TOCEntry;
 }
 
-void PPCAsmPrinter::EmitEndOfAsmFile(Module &M) {
-  SM.serializeToStackMapSection();
-}
-
-void PPCAsmPrinter::LowerSTACKMAP(MCStreamer &OutStreamer, StackMaps &SM,
-                                  const MachineInstr &MI) {
-  unsigned NumNOPBytes = MI.getOperand(1).getImm();
-
-  SM.recordStackMap(MI);
-  assert(NumNOPBytes % 4 == 0 && "Invalid number of NOP bytes requested!");
-
-  // Scan ahead to trim the shadow.
-  const MachineBasicBlock &MBB = *MI.getParent();
-  MachineBasicBlock::const_iterator MII(MI);
-  ++MII;
-  while (NumNOPBytes > 0) {
-    if (MII == MBB.end() || MII->isCall() ||
-        MII->getOpcode() == PPC::DBG_VALUE ||
-        MII->getOpcode() == TargetOpcode::PATCHPOINT ||
-        MII->getOpcode() == TargetOpcode::STACKMAP)
-      break;
-    ++MII;
-    NumNOPBytes -= 4;
-  }
-
-  // Emit nops.
-  for (unsigned i = 0; i < NumNOPBytes; i += 4)
-    EmitToStreamer(OutStreamer, MCInstBuilder(PPC::NOP));
-}
-
-// Lower a patchpoint of the form:
-// [<def>], <id>, <numBytes>, <target>, <numArgs>
-void PPCAsmPrinter::LowerPATCHPOINT(MCStreamer &OutStreamer, StackMaps &SM,
-                                    const MachineInstr &MI) {
-  SM.recordPatchPoint(MI);
-  PatchPointOpers Opers(&MI);
-
-  int64_t CallTarget = Opers.getMetaOper(PatchPointOpers::TargetPos).getImm();
-  unsigned EncodedBytes = 0;
-  if (CallTarget) {
-    assert((CallTarget & 0xFFFFFFFFFFFF) == CallTarget &&
-           "High 16 bits of call target should be zero.");
-    unsigned ScratchReg = MI.getOperand(Opers.getNextScratchIdx()).getReg();
-    EncodedBytes = 6*4;
-    // Materialize the jump address:
-    EmitToStreamer(OutStreamer, MCInstBuilder(PPC::LI8)
-                                    .addReg(ScratchReg)
-                                    .addImm((CallTarget >> 32) & 0xFFFF));
-    EmitToStreamer(OutStreamer, MCInstBuilder(PPC::RLDIC)
-                                    .addReg(ScratchReg)
-                                    .addReg(ScratchReg)
-                                    .addImm(32).addImm(16));
-    EmitToStreamer(OutStreamer, MCInstBuilder(PPC::ORIS8)
-                                    .addReg(ScratchReg)
-                                    .addReg(ScratchReg)
-                                    .addImm((CallTarget >> 16) & 0xFFFF));
-    EmitToStreamer(OutStreamer, MCInstBuilder(PPC::ORI8)
-                                    .addReg(ScratchReg)
-                                    .addReg(ScratchReg)
-                                    .addImm(CallTarget & 0xFFFF));
-
-    EmitToStreamer(OutStreamer, MCInstBuilder(PPC::MTCTR8).addReg(ScratchReg));
-    EmitToStreamer(OutStreamer, MCInstBuilder(PPC::BCTRL8));
-  }
-
-  // Emit padding.
-  unsigned NumBytes = Opers.getMetaOper(PatchPointOpers::NBytesPos).getImm();
-  assert(NumBytes >= EncodedBytes &&
-         "Patchpoint can't request size less than the length of a call.");
-  assert((NumBytes - EncodedBytes) % 4 == 0 &&
-         "Invalid number of NOP bytes requested!");
-  for (unsigned i = EncodedBytes; i < NumBytes; i += 4)
-    EmitToStreamer(OutStreamer, MCInstBuilder(PPC::NOP));
-}
 
 /// EmitInstruction -- Print out a single PowerPC MI in Darwin syntax to
 /// the current output stream.
@@ -415,11 +332,6 @@
   default: break;
   case TargetOpcode::DBG_VALUE:
     llvm_unreachable("Should be handled target independently");
-  case TargetOpcode::STACKMAP:
-    return LowerSTACKMAP(OutStreamer, SM, *MI);
-  case TargetOpcode::PATCHPOINT:
-    return LowerPATCHPOINT(OutStreamer, SM, *MI);
-
   case PPC::MoveGOTtoLR: {
     // Transform %LR = MoveGOTtoLR
     // Into this: bl _GLOBAL_OFFSET_TABLE_@local-4
diff --git a/llvm/lib/Target/PowerPC/PPCCallingConv.h b/llvm/lib/Target/PowerPC/PPCCallingConv.h
deleted file mode 100644
index eb904a8..0000000
--- a/llvm/lib/Target/PowerPC/PPCCallingConv.h
+++ /dev/null
@@ -1,35 +0,0 @@
-//=== PPCCallingConv.h - PPC Custom Calling Convention Routines -*- C++ -*-===//
-//
-//                     The LLVM Compiler Infrastructure
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-//
-// This file contains the custom routines for the PPC Calling Convention that
-// aren't done by tablegen.
-//
-//===----------------------------------------------------------------------===//
-
-#ifndef LLVM_LIB_TARGET_PPC_PPCCALLINGCONV_H
-#define LLVM_LIB_TARGET_PPC_PPCCALLINGCONV_H
-
-#include "llvm/CodeGen/CallingConvLower.h"
-#include "llvm/IR/CallingConv.h"
-
-namespace llvm {
-
-inline bool CC_PPC_AnyReg_Error(unsigned &, MVT &, MVT &,
-                                CCValAssign::LocInfo &, ISD::ArgFlagsTy &,
-                                CCState &) {
-  llvm_unreachable("The AnyReg calling convention is only supported by the " \
-                   "stackmap and patchpoint intrinsics.");
-  // gracefully fallback to PPC C calling convention on Release builds.
-  return false;
-}
-
-} // End llvm namespace
-
-#endif
-
diff --git a/llvm/lib/Target/PowerPC/PPCCallingConv.td b/llvm/lib/Target/PowerPC/PPCCallingConv.td
index 56176f1..cf8fee4 100644
--- a/llvm/lib/Target/PowerPC/PPCCallingConv.td
+++ b/llvm/lib/Target/PowerPC/PPCCallingConv.td
@@ -28,21 +28,8 @@
 // Return Value Calling Convention
 //===----------------------------------------------------------------------===//
 
-// PPC64 AnyReg return-value convention. No explicit register is specified for
-// the return-value. The register allocator is allowed and expected to choose
-// any free register.
-//
-// This calling convention is currently only supported by the stackmap and
-// patchpoint intrinsics. All other uses will result in an assert on Debug
-// builds. On Release builds we fallback to the PPC C calling convention.
-def RetCC_PPC64_AnyReg : CallingConv<[
-  CCCustom<"CC_PPC_AnyReg_Error">
-]>;
-
 // Return-value convention for PowerPC
 def RetCC_PPC : CallingConv<[
-  CCIfCC<"CallingConv::AnyReg", CCDelegateTo<RetCC_PPC64_AnyReg>>,
-
   // On PPC64, integer return values are always promoted to i64
   CCIfType<[i32, i1], CCIfSubtarget<"isPPC64()", CCPromoteToType<i64>>>,
   CCIfType<[i1], CCIfNotSubtarget<"isPPC64()", CCPromoteToType<i32>>>,
@@ -64,15 +51,6 @@
            CCAssignToReg<[VSH2, VSH3, VSH4, VSH5, VSH6, VSH7, VSH8, VSH9]>>
 ]>;
 
-// No explicit register is specified for the AnyReg calling convention. The
-// register allocator may assign the arguments to any free register.
-//
-// This calling convention is currently only supported by the stackmap and
-// patchpoint intrinsics. All other uses will result in an assert on Debug
-// builds. On Release builds we fallback to the PPC C calling convention.
-def CC_PPC64_AnyReg : CallingConv<[
-  CCCustom<"CC_PPC_AnyReg_Error">
-]>;
 
 // Note that we don't currently have calling conventions for 64-bit
 // PowerPC, but handle all the complexities of the ABI in the lowering
@@ -83,8 +61,6 @@
 // Only handle ints and floats.  All ints are promoted to i64.
 // Vector types and quadword ints are not handled.
 def CC_PPC64_ELF_FIS : CallingConv<[
-  CCIfCC<"CallingConv::AnyReg", CCDelegateTo<CC_PPC64_AnyReg>>,
-
   CCIfType<[i1],  CCPromoteToType<i64>>,
   CCIfType<[i8],  CCPromoteToType<i64>>,
   CCIfType<[i16], CCPromoteToType<i64>>,
@@ -98,8 +74,6 @@
 // and multiple register returns are "supported" to avoid compile
 // errors, but none are handled by the fast selector.
 def RetCC_PPC64_ELF_FIS : CallingConv<[
-  CCIfCC<"CallingConv::AnyReg", CCDelegateTo<RetCC_PPC64_AnyReg>>,
-
   CCIfType<[i1],   CCPromoteToType<i64>>,
   CCIfType<[i8],   CCPromoteToType<i64>>,
   CCIfType<[i16],  CCPromoteToType<i64>>,
@@ -229,15 +203,3 @@
 
 def CSR_NoRegs : CalleeSavedRegs<(add)>;
 
-def CSR_64_AllRegs: CalleeSavedRegs<(add X0, (sequence "X%u", 3, 10),
-                                             (sequence "X%u", 14, 31),
-                                             (sequence "F%u", 0, 31),
-                                             (sequence "CR%u", 0, 7))>;
-
-def CSR_64_AllRegs_Altivec : CalleeSavedRegs<(add CSR_64_AllRegs,
-                                             (sequence "V%u", 0, 31))>;
-
-def CSR_64_AllRegs_VSX : CalleeSavedRegs<(add CSR_64_AllRegs_Altivec,
-                                         (sequence "VSL%u", 0, 31),
-                                         (sequence "VSH%u", 0, 31))>;
-
diff --git a/llvm/lib/Target/PowerPC/PPCFastISel.cpp b/llvm/lib/Target/PowerPC/PPCFastISel.cpp
index 13bd0c7..ddf13ff 100644
--- a/llvm/lib/Target/PowerPC/PPCFastISel.cpp
+++ b/llvm/lib/Target/PowerPC/PPCFastISel.cpp
@@ -15,7 +15,6 @@
 
 #include "PPC.h"
 #include "MCTargetDesc/PPCPredicates.h"
-#include "PPCCallingConv.h"
 #include "PPCISelLowering.h"
 #include "PPCSubtarget.h"
 #include "PPCTargetMachine.h"
@@ -120,8 +119,6 @@
                              unsigned Op0, bool Op0IsKill,
                              unsigned Op1, bool Op1IsKill);
 
-    bool fastLowerCall(CallLoweringInfo &CLI) override;
-
   // Instruction selection routines.
   private:
     bool SelectLoad(const Instruction *I);
@@ -133,6 +130,7 @@
     bool SelectIToFP(const Instruction *I, bool IsSigned);
     bool SelectFPToI(const Instruction *I, bool IsSigned);
     bool SelectBinaryIntOp(const Instruction *I, unsigned ISDOpcode);
+    bool SelectCall(const Instruction *I);
     bool SelectRet(const Instruction *I);
     bool SelectTrunc(const Instruction *I);
     bool SelectIntExt(const Instruction *I);
@@ -176,7 +174,9 @@
                          CallingConv::ID CC,
                          unsigned &NumBytes,
                          bool IsVarArg);
-    bool finishCall(MVT RetVT, CallLoweringInfo &CLI, unsigned &NumBytes);
+    void finishCall(MVT RetVT, SmallVectorImpl<unsigned> &UsedRegs,
+                    const Instruction *I, CallingConv::ID CC,
+                    unsigned &NumBytes, bool IsVarArg);
     CCAssignFn *usePPC32CCs(unsigned Flag);
 
   private:
@@ -1339,9 +1339,9 @@
 
 // For a call that we've determined we can fast-select, finish the
 // call sequence and generate a copy to obtain the return value (if any).
-bool PPCFastISel::finishCall(MVT RetVT, CallLoweringInfo &CLI, unsigned &NumBytes) {
-  CallingConv::ID CC = CLI.CallConv;
-
+void PPCFastISel::finishCall(MVT RetVT, SmallVectorImpl<unsigned> &UsedRegs,
+                             const Instruction *I, CallingConv::ID CC,
+                             unsigned &NumBytes, bool IsVarArg) {
   // Issue CallSEQ_END.
   BuildMI(*FuncInfo.MBB, FuncInfo.InsertPt, DbgLoc,
           TII.get(TII.getCallFrameDestroyOpcode()))
@@ -1352,7 +1352,7 @@
   // any real difficulties there.
   if (RetVT != MVT::isVoid) {
     SmallVector<CCValAssign, 16> RVLocs;
-    CCState CCInfo(CC, false, *FuncInfo.MF, RVLocs, *Context);
+    CCState CCInfo(CC, IsVarArg, *FuncInfo.MF, RVLocs, *Context);
     CCInfo.AnalyzeCallResult(RetVT, RetCC_PPC64_ELF_FIS);
     CCValAssign &VA = RVLocs[0];
     assert(RVLocs.size() == 1 && "No support for multi-reg return values!");
@@ -1397,35 +1397,39 @@
     }
 
     assert(ResultReg && "ResultReg unset!");
-    CLI.InRegs.push_back(SourcePhysReg);
-    CLI.ResultReg = ResultReg;
-    CLI.NumResultRegs = 1;
+    UsedRegs.push_back(SourcePhysReg);
+    updateValueMap(I, ResultReg);
   }
-
-  return true;
 }
 
-bool PPCFastISel::fastLowerCall(CallLoweringInfo &CLI) {
-  CallingConv::ID CC  = CLI.CallConv;
-  bool IsTailCall     = CLI.IsTailCall;
-  bool IsVarArg       = CLI.IsVarArg;
-  const Value *Callee = CLI.Callee;
-  const char *SymName = CLI.SymName;
+// Attempt to fast-select a call instruction.
+bool PPCFastISel::SelectCall(const Instruction *I) {
+  const CallInst *CI = cast<CallInst>(I);
+  const Value *Callee = CI->getCalledValue();
 
-  if (!Callee && !SymName)
+  // Can't handle inline asm.
+  if (isa<InlineAsm>(Callee))
     return false;
 
   // Allow SelectionDAG isel to handle tail calls.
-  if (IsTailCall)
+  if (CI->isTailCall())
     return false;
 
-  // Let SDISel handle vararg functions.
+  // Obtain calling convention.
+  ImmutableCallSite CS(CI);
+  CallingConv::ID CC = CS.getCallingConv();
+
+  PointerType *PT = cast<PointerType>(CS.getCalledValue()->getType());
+  FunctionType *FTy = cast<FunctionType>(PT->getElementType());
+  bool IsVarArg = FTy->isVarArg();
+
+  // Not ready for varargs yet.
   if (IsVarArg)
     return false;
 
   // Handle simple calls for now, with legal return types and
   // those that can be extended.
-  Type *RetTy = CLI.RetTy;
+  Type *RetTy = I->getType();
   MVT RetVT;
   if (RetTy->isVoidTy())
     RetVT = MVT::isVoid;
@@ -1446,7 +1450,7 @@
 
   // Bail early if more than 8 arguments, as we only currently
   // handle arguments passed in registers.
-  unsigned NumArgs = CLI.OutVals.size();
+  unsigned NumArgs = CS.arg_size();
   if (NumArgs > 8)
     return false;
 
@@ -1461,16 +1465,28 @@
   ArgVTs.reserve(NumArgs);
   ArgFlags.reserve(NumArgs);
 
-  for (unsigned i = 0, ie = NumArgs; i != ie; ++i) {
+  for (ImmutableCallSite::arg_iterator II = CS.arg_begin(), IE = CS.arg_end();
+       II != IE; ++II) {
+    // FIXME: ARM does something for intrinsic calls here, check into that.
+
+    unsigned AttrIdx = II - CS.arg_begin() + 1;
+    
     // Only handle easy calls for now.  It would be reasonably easy
     // to handle <= 8-byte structures passed ByVal in registers, but we
     // have to ensure they are right-justified in the register.
-    ISD::ArgFlagsTy Flags = CLI.OutFlags[i];
-    if (Flags.isInReg() || Flags.isSRet() || Flags.isNest() || Flags.isByVal())
+    if (CS.paramHasAttr(AttrIdx, Attribute::InReg) ||
+        CS.paramHasAttr(AttrIdx, Attribute::StructRet) ||
+        CS.paramHasAttr(AttrIdx, Attribute::Nest) ||
+        CS.paramHasAttr(AttrIdx, Attribute::ByVal))
       return false;
 
-    Value *ArgValue = CLI.OutVals[i];
-    Type *ArgTy = ArgValue->getType();
+    ISD::ArgFlagsTy Flags;
+    if (CS.paramHasAttr(AttrIdx, Attribute::SExt))
+      Flags.setSExt();
+    if (CS.paramHasAttr(AttrIdx, Attribute::ZExt))
+      Flags.setZExt();
+
+    Type *ArgTy = (*II)->getType();
     MVT ArgVT;
     if (!isTypeLegal(ArgTy, ArgVT) && ArgVT != MVT::i16 && ArgVT != MVT::i8)
       return false;
@@ -1478,11 +1494,14 @@
     if (ArgVT.isVector())
       return false;
 
-    unsigned Arg = getRegForValue(ArgValue);
+    unsigned Arg = getRegForValue(*II);
     if (Arg == 0)
       return false;
 
-    Args.push_back(ArgValue);
+    unsigned OriginalAlignment = DL.getABITypeAlignment(ArgTy);
+    Flags.setOrigAlign(OriginalAlignment);
+
+    Args.push_back(*II);
     ArgRegs.push_back(Arg);
     ArgVTs.push_back(ArgVT);
     ArgFlags.push_back(Flags);
@@ -1496,28 +1515,18 @@
                        RegArgs, CC, NumBytes, IsVarArg))
     return false;
 
-  MachineInstrBuilder MIB;
   // FIXME: No handling for function pointers yet.  This requires
   // implementing the function descriptor (OPD) setup.
   const GlobalValue *GV = dyn_cast<GlobalValue>(Callee);
-  if (!GV) {
-    // patchpoints are a special case; they always dispatch to a pointer value.
-    // However, we don't actually want to generate the indirect call sequence
-    // here (that will be generated, as necessary, during asm printing), and
-    // the call we generate here will be erased by FastISel::selectPatchpoint,
-    // so don't try very hard...
-    if (CLI.IsPatchPoint)
-      MIB = BuildMI(*FuncInfo.MBB, FuncInfo.InsertPt, DbgLoc, TII.get(PPC::NOP));
-    else
-      return false;
-  } else {
-    // Build direct call with NOP for TOC restore.
-    // FIXME: We can and should optimize away the NOP for local calls.
-    MIB = BuildMI(*FuncInfo.MBB, FuncInfo.InsertPt, DbgLoc,
-                  TII.get(PPC::BL8_NOP));
-    // Add callee.
-    MIB.addGlobalAddress(GV);
-  }
+  if (!GV)
+    return false;
+
+  // Build direct call with NOP for TOC restore.
+  // FIXME: We can and should optimize away the NOP for local calls.
+  MachineInstrBuilder MIB = BuildMI(*FuncInfo.MBB, FuncInfo.InsertPt, DbgLoc,
+                                    TII.get(PPC::BL8_NOP));
+  // Add callee.
+  MIB.addGlobalAddress(GV);
 
   // Add implicit physical register uses to the call.
   for (unsigned II = 0, IE = RegArgs.size(); II != IE; ++II)
@@ -1531,10 +1540,14 @@
   // defs for return values will be added by setPhysRegsDeadExcept().
   MIB.addRegMask(TRI.getCallPreservedMask(CC));
 
-  CLI.Call = MIB;
-
   // Finish off the call including any return values.
-  return finishCall(RetVT, CLI, NumBytes);
+  SmallVector<unsigned, 4> UsedRegs;
+  finishCall(RetVT, UsedRegs, I, CC, NumBytes, IsVarArg);
+
+  // Set all unused physregs defs as dead.
+  static_cast<MachineInstr *>(MIB)->setPhysRegsDeadExcept(UsedRegs, TRI);
+
+  return true;
 }
 
 // Attempt to fast-select a return instruction.
@@ -1824,7 +1837,9 @@
     case Instruction::Sub:
       return SelectBinaryIntOp(I, ISD::SUB);
     case Instruction::Call:
-      return selectCall(I);
+      if (dyn_cast<IntrinsicInst>(I))
+        return false;
+      return SelectCall(I);
     case Instruction::Ret:
       return SelectRet(I);
     case Instruction::Trunc:
diff --git a/llvm/lib/Target/PowerPC/PPCFrameLowering.cpp b/llvm/lib/Target/PowerPC/PPCFrameLowering.cpp
index 1b85047..e39f755 100644
--- a/llvm/lib/Target/PowerPC/PPCFrameLowering.cpp
+++ b/llvm/lib/Target/PowerPC/PPCFrameLowering.cpp
@@ -450,7 +450,6 @@
 
   return MF.getTarget().Options.DisableFramePointerElim(MF) ||
     MFI->hasVarSizedObjects() ||
-    MFI->hasStackMap() || MFI->hasPatchPoint() ||
     (MF.getTarget().Options.GuaranteedTailCallOpt &&
      MF.getInfo<PPCFunctionInfo>()->hasFastCall());
 }
diff --git a/llvm/lib/Target/PowerPC/PPCISelLowering.cpp b/llvm/lib/Target/PowerPC/PPCISelLowering.cpp
index 120e4ed..2157003 100644
--- a/llvm/lib/Target/PowerPC/PPCISelLowering.cpp
+++ b/llvm/lib/Target/PowerPC/PPCISelLowering.cpp
@@ -13,7 +13,6 @@
 
 #include "PPCISelLowering.h"
 #include "MCTargetDesc/PPCPredicates.h"
-#include "PPCCallingConv.h"
 #include "PPCMachineFunctionInfo.h"
 #include "PPCPerfectShuffle.h"
 #include "PPCTargetMachine.h"
@@ -3591,7 +3590,6 @@
 static
 unsigned PrepareCall(SelectionDAG &DAG, SDValue &Callee, SDValue &InFlag,
                      SDValue &Chain, SDLoc dl, int SPDiff, bool isTailCall,
-                     bool IsPatchPoint,
                      SmallVectorImpl<std::pair<unsigned, SDValue> > &RegsToPass,
                      SmallVectorImpl<SDValue> &Ops, std::vector<EVT> &NodeTys,
                      const PPCSubtarget &Subtarget) {
@@ -3665,7 +3663,7 @@
     // to do the call, we can't use PPCISD::CALL.
     SDValue MTCTROps[] = {Chain, Callee, InFlag};
 
-    if (isSVR4ABI && isPPC64 && !isELFv2ABI && !IsPatchPoint) {
+    if (isSVR4ABI && isPPC64 && !isELFv2ABI) {
       // Function pointers in the 64-bit SVR4 ABI do not point to the function
       // entry point, but to the function descriptor (the function entry point
       // address is part of the function descriptor though).
@@ -3734,11 +3732,9 @@
       MTCTROps[2] = InFlag;
     }
 
-    if (!IsPatchPoint) {
-      Chain = DAG.getNode(PPCISD::MTCTR, dl, NodeTys,
-                          makeArrayRef(MTCTROps, InFlag.getNode() ? 3 : 2));
-      InFlag = Chain.getValue(1);
-    }
+    Chain = DAG.getNode(PPCISD::MTCTR, dl, NodeTys,
+                        makeArrayRef(MTCTROps, InFlag.getNode() ? 3 : 2));
+    InFlag = Chain.getValue(1);
 
     NodeTys.clear();
     NodeTys.push_back(MVT::Other);
@@ -3747,7 +3743,7 @@
     CallOpc = PPCISD::BCTRL;
     Callee.setNode(nullptr);
     // Add use of X11 (holding environment pointer)
-    if (isSVR4ABI && isPPC64 && !isELFv2ABI && !IsPatchPoint)
+    if (isSVR4ABI && isPPC64 && !isELFv2ABI)
       Ops.push_back(DAG.getRegister(PPC::X11, PtrVT));
     // Add CTR register as callee so a bctr can be emitted later.
     if (isTailCall)
@@ -3787,7 +3783,7 @@
                                   RegsToPass[i].second.getValueType()));
 
   // Direct calls in the ELFv2 ABI need the TOC register live into the call.
-  if (Callee.getNode() && isELFv2ABI && !IsPatchPoint)
+  if (Callee.getNode() && isELFv2ABI)
     Ops.push_back(DAG.getRegister(PPC::X2, PtrVT));
 
   return CallOpc;
@@ -3850,7 +3846,7 @@
 
 SDValue
 PPCTargetLowering::FinishCall(CallingConv::ID CallConv, SDLoc dl,
-                              bool isTailCall, bool isVarArg, bool IsPatchPoint,
+                              bool isTailCall, bool isVarArg,
                               SelectionDAG &DAG,
                               SmallVector<std::pair<unsigned, SDValue>, 8>
                                 &RegsToPass,
@@ -3864,8 +3860,8 @@
   std::vector<EVT> NodeTys;
   SmallVector<SDValue, 8> Ops;
   unsigned CallOpc = PrepareCall(DAG, Callee, InFlag, Chain, dl, SPDiff,
-                                 isTailCall, IsPatchPoint, RegsToPass, Ops,
-                                 NodeTys, Subtarget);
+                                 isTailCall, RegsToPass, Ops, NodeTys,
+                                 Subtarget);
 
   // Add implicit use of CR bit 6 for 32-bit SVR4 vararg calls
   if (isVarArg && Subtarget.isSVR4ABI() && !Subtarget.isPPC64())
@@ -3967,7 +3963,6 @@
   bool &isTailCall                      = CLI.IsTailCall;
   CallingConv::ID CallConv              = CLI.CallConv;
   bool isVarArg                         = CLI.IsVarArg;
-  bool IsPatchPoint                     = CLI.IsPatchPoint;
 
   if (isTailCall)
     isTailCall = IsEligibleForTailCallOptimization(Callee, CallConv, isVarArg,
@@ -3980,23 +3975,23 @@
   if (Subtarget.isSVR4ABI()) {
     if (Subtarget.isPPC64())
       return LowerCall_64SVR4(Chain, Callee, CallConv, isVarArg,
-                              isTailCall, IsPatchPoint, Outs, OutVals, Ins,
+                              isTailCall, Outs, OutVals, Ins,
                               dl, DAG, InVals);
     else
       return LowerCall_32SVR4(Chain, Callee, CallConv, isVarArg,
-                              isTailCall, IsPatchPoint, Outs, OutVals, Ins,
+                              isTailCall, Outs, OutVals, Ins,
                               dl, DAG, InVals);
   }
 
   return LowerCall_Darwin(Chain, Callee, CallConv, isVarArg,
-                          isTailCall, IsPatchPoint, Outs, OutVals, Ins,
+                          isTailCall, Outs, OutVals, Ins,
                           dl, DAG, InVals);
 }
 
 SDValue
 PPCTargetLowering::LowerCall_32SVR4(SDValue Chain, SDValue Callee,
                                     CallingConv::ID CallConv, bool isVarArg,
-                                    bool isTailCall, bool IsPatchPoint,
+                                    bool isTailCall,
                                     const SmallVectorImpl<ISD::OutputArg> &Outs,
                                     const SmallVectorImpl<SDValue> &OutVals,
                                     const SmallVectorImpl<ISD::InputArg> &Ins,
@@ -4206,7 +4201,7 @@
     PrepareTailCall(DAG, InFlag, Chain, dl, false, SPDiff, NumBytes, LROp, FPOp,
                     false, TailCallArguments);
 
-  return FinishCall(CallConv, dl, isTailCall, isVarArg, IsPatchPoint, DAG,
+  return FinishCall(CallConv, dl, isTailCall, isVarArg, DAG,
                     RegsToPass, InFlag, Chain, Callee, SPDiff, NumBytes,
                     Ins, InVals);
 }
@@ -4234,7 +4229,7 @@
 SDValue
 PPCTargetLowering::LowerCall_64SVR4(SDValue Chain, SDValue Callee,
                                     CallingConv::ID CallConv, bool isVarArg,
-                                    bool isTailCall, bool IsPatchPoint,
+                                    bool isTailCall,
                                     const SmallVectorImpl<ISD::OutputArg> &Outs,
                                     const SmallVectorImpl<SDValue> &OutVals,
                                     const SmallVectorImpl<ISD::InputArg> &Ins,
@@ -4670,7 +4665,7 @@
   // Check if this is an indirect call (MTCTR/BCTRL).
   // See PrepareCall() for more information about calls through function
   // pointers in the 64-bit SVR4 ABI.
-  if (!isTailCall && !IsPatchPoint &&
+  if (!isTailCall &&
       !isFunctionGlobalAddress(Callee) &&
       !isa<ExternalSymbolSDNode>(Callee)) {
     // Load r2 into a virtual register and store it to the TOC save area.
@@ -4684,7 +4679,7 @@
     // In the ELFv2 ABI, R12 must contain the address of an indirect callee.
     // This does not mean the MTCTR instruction must use R12; it's easier
     // to model this as an extra parameter, so do that.
-    if (isELFv2ABI && !IsPatchPoint)
+    if (isELFv2ABI)
       RegsToPass.push_back(std::make_pair((unsigned)PPC::X12, Callee));
   }
 
@@ -4701,7 +4696,7 @@
     PrepareTailCall(DAG, InFlag, Chain, dl, true, SPDiff, NumBytes, LROp,
                     FPOp, true, TailCallArguments);
 
-  return FinishCall(CallConv, dl, isTailCall, isVarArg, IsPatchPoint, DAG,
+  return FinishCall(CallConv, dl, isTailCall, isVarArg, DAG,
                     RegsToPass, InFlag, Chain, Callee, SPDiff, NumBytes,
                     Ins, InVals);
 }
@@ -4709,7 +4704,7 @@
 SDValue
 PPCTargetLowering::LowerCall_Darwin(SDValue Chain, SDValue Callee,
                                     CallingConv::ID CallConv, bool isVarArg,
-                                    bool isTailCall, bool IsPatchPoint,
+                                    bool isTailCall,
                                     const SmallVectorImpl<ISD::OutputArg> &Outs,
                                     const SmallVectorImpl<SDValue> &OutVals,
                                     const SmallVectorImpl<ISD::InputArg> &Ins,
@@ -5094,7 +5089,7 @@
     PrepareTailCall(DAG, InFlag, Chain, dl, isPPC64, SPDiff, NumBytes, LROp,
                     FPOp, true, TailCallArguments);
 
-  return FinishCall(CallConv, dl, isTailCall, isVarArg, IsPatchPoint, DAG,
+  return FinishCall(CallConv, dl, isTailCall, isVarArg, DAG,
                     RegsToPass, InFlag, Chain, Callee, SPDiff, NumBytes,
                     Ins, InVals);
 }
@@ -7251,10 +7246,6 @@
 MachineBasicBlock *
 PPCTargetLowering::EmitInstrWithCustomInserter(MachineInstr *MI,
                                                MachineBasicBlock *BB) const {
-  if (MI->getOpcode() == TargetOpcode::STACKMAP ||
-      MI->getOpcode() == TargetOpcode::PATCHPOINT)
-    return emitPatchPoint(MI, BB);
-
   if (MI->getOpcode() == PPC::EH_SjLj_SetJmp32 ||
       MI->getOpcode() == PPC::EH_SjLj_SetJmp64) {
     return emitEHSjLjSetJmp(MI, BB);
@@ -9891,19 +9882,6 @@
   return false;
 }
 
-const MCPhysReg *
-PPCTargetLowering::getScratchRegisters(CallingConv::ID) const {
-  // LR is a callee-save register, but we must treat it as clobbered by any call
-  // site. Hence we include LR in the scratch registers, which are in turn added
-  // as implicit-defs for stackmaps and patchpoints. The same reasoning applies
-  // to CTR, which is used by any indirect call.
-  static const MCPhysReg ScratchRegs[] = {
-    PPC::X11, PPC::X12, PPC::LR8, PPC::CTR8, 0
-  };
-
-  return ScratchRegs;
-}
-
 bool
 PPCTargetLowering::shouldExpandBuildVectorWithShuffles(
                      EVT VT , unsigned DefinedValues) const {
diff --git a/llvm/lib/Target/PowerPC/PPCISelLowering.h b/llvm/lib/Target/PowerPC/PPCISelLowering.h
index 1b585d8..b171b16 100644
--- a/llvm/lib/Target/PowerPC/PPCISelLowering.h
+++ b/llvm/lib/Target/PowerPC/PPCISelLowering.h
@@ -570,8 +570,6 @@
     /// expanded to fmul + fadd.
     bool isFMAFasterThanFMulAndFAdd(EVT VT) const override;
 
-    const MCPhysReg *getScratchRegisters(CallingConv::ID CC) const override;
-
     // Should we expand the build vector with shuffles?
     bool
     shouldExpandBuildVectorWithShuffles(EVT VT,
@@ -683,7 +681,7 @@
                             SDLoc dl, SelectionDAG &DAG,
                             SmallVectorImpl<SDValue> &InVals) const;
     SDValue FinishCall(CallingConv::ID CallConv, SDLoc dl, bool isTailCall,
-                       bool isVarArg, bool IsPatchPoint,
+                       bool isVarArg,
                        SelectionDAG &DAG,
                        SmallVector<std::pair<unsigned, SDValue>, 8>
                          &RegsToPass,
@@ -748,7 +746,7 @@
     SDValue
       LowerCall_Darwin(SDValue Chain, SDValue Callee,
                        CallingConv::ID CallConv,
-                       bool isVarArg, bool isTailCall, bool IsPatchPoint,
+                       bool isVarArg, bool isTailCall,
                        const SmallVectorImpl<ISD::OutputArg> &Outs,
                        const SmallVectorImpl<SDValue> &OutVals,
                        const SmallVectorImpl<ISD::InputArg> &Ins,
@@ -757,7 +755,7 @@
     SDValue
       LowerCall_64SVR4(SDValue Chain, SDValue Callee,
                        CallingConv::ID CallConv,
-                       bool isVarArg, bool isTailCall, bool IsPatchPoint,
+                       bool isVarArg, bool isTailCall,
                        const SmallVectorImpl<ISD::OutputArg> &Outs,
                        const SmallVectorImpl<SDValue> &OutVals,
                        const SmallVectorImpl<ISD::InputArg> &Ins,
@@ -765,7 +763,7 @@
                        SmallVectorImpl<SDValue> &InVals) const;
     SDValue
     LowerCall_32SVR4(SDValue Chain, SDValue Callee, CallingConv::ID CallConv,
-                     bool isVarArg, bool isTailCall, bool IsPatchPoint,
+                     bool isVarArg, bool isTailCall,
                      const SmallVectorImpl<ISD::OutputArg> &Outs,
                      const SmallVectorImpl<SDValue> &OutVals,
                      const SmallVectorImpl<ISD::InputArg> &Ins,
diff --git a/llvm/lib/Target/PowerPC/PPCInstrInfo.cpp b/llvm/lib/Target/PowerPC/PPCInstrInfo.cpp
index 2492229..1242c3e 100644
--- a/llvm/lib/Target/PowerPC/PPCInstrInfo.cpp
+++ b/llvm/lib/Target/PowerPC/PPCInstrInfo.cpp
@@ -29,7 +29,6 @@
 #include "llvm/CodeGen/PseudoSourceValue.h"
 #include "llvm/CodeGen/ScheduleDAG.h"
 #include "llvm/CodeGen/SlotIndexes.h"
-#include "llvm/CodeGen/StackMaps.h"
 #include "llvm/MC/MCAsmInfo.h"
 #include "llvm/Support/CommandLine.h"
 #include "llvm/Support/Debug.h"
@@ -1597,11 +1596,6 @@
     const MachineFunction *MF = MI->getParent()->getParent();
     const char *AsmStr = MI->getOperand(0).getSymbolName();
     return getInlineAsmLength(AsmStr, *MF->getTarget().getMCAsmInfo());
-  } else if (Opcode == TargetOpcode::STACKMAP) {
-    return MI->getOperand(1).getImm();
-  } else if (Opcode == TargetOpcode::PATCHPOINT) {
-    PatchPointOpers Opers(MI);
-    return Opers.getMetaOper(PatchPointOpers::NBytesPos).getImm();
   } else {
     const MCInstrDesc &Desc = get(Opcode);
     return Desc.getSize();
diff --git a/llvm/lib/Target/PowerPC/PPCRegisterInfo.cpp b/llvm/lib/Target/PowerPC/PPCRegisterInfo.cpp
index aa0da7a..9b9966f 100644
--- a/llvm/lib/Target/PowerPC/PPCRegisterInfo.cpp
+++ b/llvm/lib/Target/PowerPC/PPCRegisterInfo.cpp
@@ -99,14 +99,6 @@
 
 const MCPhysReg*
 PPCRegisterInfo::getCalleeSavedRegs(const MachineFunction *MF) const {
-  if (MF->getFunction()->getCallingConv() == CallingConv::AnyReg) {
-    if (Subtarget.hasVSX())
-      return CSR_64_AllRegs_VSX_SaveList;
-    if (Subtarget.hasAltivec())
-      return CSR_64_AllRegs_Altivec_SaveList;
-    return CSR_64_AllRegs_SaveList;
-  }
-
   if (Subtarget.isDarwinABI())
     return Subtarget.isPPC64() ? (Subtarget.hasAltivec() ?
                                   CSR_Darwin64_Altivec_SaveList :
@@ -125,14 +117,6 @@
 
 const uint32_t*
 PPCRegisterInfo::getCallPreservedMask(CallingConv::ID CC) const {
-  if (CC == CallingConv::AnyReg) {
-    if (Subtarget.hasVSX())
-      return CSR_64_AllRegs_VSX_RegMask;
-    if (Subtarget.hasAltivec())
-      return CSR_64_AllRegs_Altivec_RegMask;
-    return CSR_64_AllRegs_RegMask;
-  }
-
   if (Subtarget.isDarwinABI())
     return Subtarget.isPPC64() ? (Subtarget.hasAltivec() ?
                                   CSR_Darwin64_Altivec_RegMask :
@@ -154,14 +138,6 @@
   return CSR_NoRegs_RegMask;
 }
 
-void PPCRegisterInfo::adjustStackMapLiveOutMask(uint32_t *Mask) const {
-  unsigned PseudoRegs[] = { PPC::ZERO, PPC::ZERO8, PPC::RM };
-  for (unsigned i = 0, ie = array_lengthof(PseudoRegs); i != ie; ++i) {
-    unsigned Reg = PseudoRegs[i];
-    Mask[Reg / 32] &= ~(1u << (Reg % 32));
-  }
-}
-
 BitVector PPCRegisterInfo::getReservedRegs(const MachineFunction &MF) const {
   BitVector Reserved(getNumRegs());
   const PPCFrameLowering *PPCFI = static_cast<const PPCFrameLowering *>(
@@ -724,10 +700,7 @@
   // Take into account whether it's an add or mem instruction
   unsigned OffsetOperandNo = (FIOperandNum == 2) ? 1 : 2;
   if (MI.isInlineAsm())
-    OffsetOperandNo = FIOperandNum - 1;
-  else if (MI.getOpcode() == TargetOpcode::STACKMAP ||
-           MI.getOpcode() == TargetOpcode::PATCHPOINT)
-    OffsetOperandNo = FIOperandNum + 1;
+    OffsetOperandNo = FIOperandNum-1;
 
   return OffsetOperandNo;
 }
@@ -799,8 +772,7 @@
 
   // If the instruction is not present in ImmToIdxMap, then it has no immediate
   // form (and must be r+r).
-  bool noImmForm = !MI.isInlineAsm() && OpC != TargetOpcode::STACKMAP &&
-                   OpC != TargetOpcode::PATCHPOINT && !ImmToIdxMap.count(OpC);
+  bool noImmForm = !MI.isInlineAsm() && !ImmToIdxMap.count(OpC);
 
   // Now add the frame object offset to the offset from r1.
   int Offset = MFI->getObjectOffset(FrameIndex);
@@ -824,10 +796,8 @@
   // only "std" to a stack slot that is at least 4-byte aligned, but it can
   // happen in invalid code.
   assert(OpC != PPC::DBG_VALUE &&
-         "This should be handled in a target-independent way");
-  if (!noImmForm && ((isInt<16>(Offset) && (!isIXAddr || (Offset & 3) == 0)) ||
-                     OpC == TargetOpcode::STACKMAP ||
-                     OpC == TargetOpcode::PATCHPOINT)) {
+         "This should be handle in a target independent way");
+  if (!noImmForm && isInt<16>(Offset) && (!isIXAddr || (Offset & 3) == 0)) {
     MI.getOperand(OffsetOperandNo).ChangeToImmediate(Offset);
     return;
   }
@@ -1038,8 +1008,6 @@
   Offset += MI->getOperand(OffsetOperandNo).getImm();
 
   return MI->getOpcode() == PPC::DBG_VALUE || // DBG_VALUE is always Reg+Imm
-         MI->getOpcode() == TargetOpcode::STACKMAP ||
-         MI->getOpcode() == TargetOpcode::PATCHPOINT ||
          (isInt<16>(Offset) && (!usesIXAddr(*MI) || (Offset & 3) == 0));
 }
 
diff --git a/llvm/lib/Target/PowerPC/PPCRegisterInfo.h b/llvm/lib/Target/PowerPC/PPCRegisterInfo.h
index 4c2ef90..c182f95 100644
--- a/llvm/lib/Target/PowerPC/PPCRegisterInfo.h
+++ b/llvm/lib/Target/PowerPC/PPCRegisterInfo.h
@@ -49,8 +49,6 @@
   const uint32_t *getCallPreservedMask(CallingConv::ID CC) const override;
   const uint32_t *getNoPreservedMask() const;
 
-  void adjustStackMapLiveOutMask(uint32_t *Mask) const override;
-
   BitVector getReservedRegs(const MachineFunction &MF) const override;
 
   /// We require the register scavenger.
diff --git a/llvm/lib/Target/PowerPC/PPCTargetTransformInfo.cpp b/llvm/lib/Target/PowerPC/PPCTargetTransformInfo.cpp
index a7bb252..fc440a5 100644
--- a/llvm/lib/Target/PowerPC/PPCTargetTransformInfo.cpp
+++ b/llvm/lib/Target/PowerPC/PPCTargetTransformInfo.cpp
@@ -183,15 +183,6 @@
     if ((Idx == 1) && Imm.getBitWidth() <= 64 && isInt<16>(Imm.getSExtValue()))
       return TCC_Free;
     break;
-  case Intrinsic::experimental_stackmap:
-    if ((Idx < 2) || (Imm.getBitWidth() <= 64 && isInt<64>(Imm.getSExtValue())))
-      return TCC_Free;
-    break;
-  case Intrinsic::experimental_patchpoint_void:
-  case Intrinsic::experimental_patchpoint_i64:
-    if ((Idx < 4) || (Imm.getBitWidth() <= 64 && isInt<64>(Imm.getSExtValue())))
-      return TCC_Free;
-    break;
   }
   return PPCTTI::getIntImmCost(Imm, Ty);
 }