Add extra operand to CALLSEQ_START to keep frame part set up previously

[sepavloff]

Summary

Using arguments with attribute inalloca creates problems for verification
of machine representation. This attribute instructs the backend that the
argument is prepared in stack prior to CALLSEQ_START..CALLSEQ_END
sequence (see http://llvm.org/docs/InAlloca.htm for details). Frame size
stored in CALLSEQ_START in this case does not count the size of this
argument. However CALLSEQ_END still keeps total frame size, as caller can
be responsible for cleanup of entire frame. So CALLSEQ_START and
CALLSEQ_END keep different frame size and the difference is treated by
MachineVerifier as stack error. Currently there is no way to distinguish
this case from actual errors.

This patch adds additional argument to CALLSEQ_START and its
target-specific counterparts to keep size of stack that is set up prior to
the call frame sequence. This argument allows MachineVerifier to calculate
actual frame size associated with frame setup instruction and correctly
process the case of inalloca arguments.

The changes made by the patch are:

• Frame setup instructions get the second mandatory argument. It affects all targets that use frame pseudo instructions and touched many files although the changes are uniform.
• Access to frame properties are implemented using special instructions rather than calls getOperand(N).getImm(). For X86 and ARM such replacement was made previously.
• Changes that reflect appearance of additional argument of frame setup instruction. These involve proper instruction initialization and methods that access instruction arguments.
• MachineVerifier retrieves frame size using method, which reports sum of frame parts initialized inside frame instruction pair and outside it.

The patch implements approach proposed by Quentin Colombet in
https://bugs.llvm.org/show_bug.cgi?id=27481#c1.
It fixes 9 tests failed with machine verifier enabled and listed
in PR27481.

[RKSimon]

A few initial style comments

include/llvm/CodeGen/SelectionDAG.h

728

Can this be removed/deprecated?

include/llvm/Target/TargetInstrInfo.h

185

assert message

lib/Target/MSP430/MSP430InstrInfo.h

91

Merge asserts and message

lib/Target/PowerPC/PPCISelLowering.cpp

5088

getConstantOperand() ?

[sepavloff]

include/llvm/CodeGen/SelectionDAG.h

728

Removed it.

lib/Target/PowerPC/PPCISelLowering.cpp

5088

Indeed, thank you.

[sepavloff]

Addressed reviewer's notes and rebased.

[RKSimon]

Anyone else got any comments?

include/llvm/Target/TargetSelectionDAG.td

286

Is it worth merging these into a single class SDCallSeq class?

[sepavloff]

include/llvm/Target/TargetSelectionDAG.td

286

There is no reason why CALLSEQ_START and CALLSEQ_END must have the same set of arguments, so these classes probably are not worth merging.

[RKSimon]

LGTM

include/llvm/CodeGen/ISDOpcodes.h

enum NodeType {
     /// STACKRESTORE has two operands, an input chain and a pointer to restore
     /// to it returns an output chain.
     STACKRESTORE,
 
     /// CALLSEQ_START/CALLSEQ_END - These operators mark the beginning and end
     /// of a call sequence, and carry arbitrary information that target might
     /// want to know.  The first operand is a chain, the rest are specified by
     /// the target and not touched by the DAG optimizers.
+    /// Targets that may use stack to pass call arguments define additional
+    /// operands:
+    /// - size of the call frame part that must be set up within the
+    ///   CALLSEQ_START..CALLSEQ_END pair,
+    /// - part of the call frame prepared prior to CALLSEQ_START.
+    /// Both these parameters must be constants, their sum is the total call
+    /// frame size.
     /// CALLSEQ_START..CALLSEQ_END pairs may not be nested.
     CALLSEQ_START,  // Beginning of a call sequence
     CALLSEQ_END,    // End of a call sequence
 
     /// VAARG - VAARG has four operands: an input chain, a pointer, a SRCVALUE,
     /// and the alignment. It returns a pair of values: the vaarg value and a
     /// new chain.
     VAARG,

include/llvm/CodeGen/SelectionDAG.h

#endif
   /// Create a bitwise NOT operation as (XOR Val, -1).
   SDValue getNOT(const SDLoc &DL, SDValue Val, EVT VT);
 
   /// \brief Create a logical NOT operation as (XOR Val, BooleanOne).
   SDValue getLogicalNOT(const SDLoc &DL, SDValue Val, EVT VT);
 
   /// Return a new CALLSEQ_START node, which always must have a glue result
   /// (to ensure it's not CSE'd).  CALLSEQ_START does not have a useful SDLoc.
   SDValue getCALLSEQ_START(SDValue Chain, SDValue Op, const SDLoc &DL) {
     SDVTList VTs = getVTList(MVT::Other, MVT::Glue);
     SDValue Ops[] = { Chain,  Op };
     return getNode(ISD::CALLSEQ_START, DL, VTs, Ops);
   }
 
+  /// Return a new CALLSEQ_START node, that starts new call frame, in which
+  /// InSize bytes are set up inside CALLSEQ_START..CALLSEQ_END sequence and
+  /// OutSize specifies part of the frame set up prior to the sequence.
+  SDValue getCALLSEQ_START(SDValue Chain, uint64_t InSize, uint64_t OutSize,
+                           const SDLoc &DL) {
+    SDVTList VTs = getVTList(MVT::Other, MVT::Glue);
+    SDValue Ops[] = { Chain,
+                      getIntPtrConstant(InSize, DL, true),
+                      getIntPtrConstant(OutSize, DL, true) };
+    return getNode(ISD::CALLSEQ_START, DL, VTs, Ops);
+  }
+
   /// Return a new CALLSEQ_END node, which always must have a
   /// glue result (to ensure it's not CSE'd).
   /// CALLSEQ_END does not have a useful SDLoc.
   SDValue getCALLSEQ_END(SDValue Chain, SDValue Op1, SDValue Op2,
                          SDValue InGlue, const SDLoc &DL) {
     SDVTList NodeTys = getVTList(MVT::Other, MVT::Glue);
     SmallVector<SDValue, 4> Ops;
     Ops.push_back(Chain);

include/llvm/Target/TargetInstrInfo.h

public:
   /// inalloca arguments. This function reports only the size of the frame part
   /// that is set up between the frame setup and destroy pseudo instructions.
   int64_t getFrameSize(const MachineInstr &I) const {
     assert(isFrameInstr(I));
     assert(I.getOperand(0).getImm() >= 0);
     return I.getOperand(0).getImm();
   }
 
+  /// Returns the total frame size, which is made up of the space set up inside
+  /// the pair of frame start-stop instructions and the space that is set up
+  /// prior to the pair.
+  int64_t getFrameTotalSize(const MachineInstr &I) const {
+    if (isFrameSetup(I)) {
+      assert(I.getOperand(1).getImm() >= 0);
+      return getFrameSize(I) + I.getOperand(1).getImm();
+    }
+    return getFrameSize(I);
+  }
+
   unsigned getCatchReturnOpcode() const { return CatchRetOpcode; }
   unsigned getReturnOpcode() const { return ReturnOpcode; }
 
   /// Returns the actual stack pointer adjustment made by an instruction
   /// as part of a call sequence. By default, only call frame setup/destroy
   /// instructions adjust the stack, but targets may want to override this
   /// to enable more fine-grained adjustment, or adjust by a different value.
   virtual int getSPAdjust(const MachineInstr &MI) const;

include/llvm/Target/TargetSelectionDAG.td

def SDTAtomicLoad : SDTypeProfile<1, 1, [
   SDTCisInt<0>, SDTCisPtrTy<1>
 ]>;
 
 def SDTConvertOp : SDTypeProfile<1, 5, [ //cvtss, su, us, uu, ff, fs, fu, sf, su
   SDTCisVT<2, OtherVT>, SDTCisVT<3, OtherVT>, SDTCisPtrTy<4>, SDTCisPtrTy<5>
 ]>;
 
 class SDCallSeqStart<list<SDTypeConstraint> constraints> :
-        SDTypeProfile<0, 1, constraints>;
+        SDTypeProfile<0, 2, constraints>;
 class SDCallSeqEnd<list<SDTypeConstraint> constraints> :
         SDTypeProfile<0, 2, constraints>;
 
 //===----------------------------------------------------------------------===//
 // Selection DAG Node Properties.
 //
 // Note: These are hard coded into tblgen.
 //
 class SDNodeProperty;
 def SDNPCommutative : SDNodeProperty;   // X op Y == Y op X

lib/CodeGen/MachineVerifier.cpp

if (DFI.getPathLength() >= 2) {
       BBState.ExitIsSetup = BBState.EntryIsSetup;
     }
 
     // Update stack state by checking contents of MBB.
     for (const auto &I : *MBB) {
       if (I.getOpcode() == FrameSetupOpcode) {
         if (BBState.ExitIsSetup)
           report("FrameSetup is after another FrameSetup", &I);
-        BBState.ExitValue -= TII->getFrameSize(I);
+        BBState.ExitValue -= TII->getFrameTotalSize(I);
         BBState.ExitIsSetup = true;
       }
 
       if (I.getOpcode() == FrameDestroyOpcode) {
-        int Size = TII->getFrameSize(I);
+        int Size = TII->getFrameTotalSize(I);
         if (!BBState.ExitIsSetup)
           report("FrameDestroy is not after a FrameSetup", &I);
         int AbsSPAdj = BBState.ExitValue < 0 ? -BBState.ExitValue :
                                                BBState.ExitValue;
         if (BBState.ExitIsSetup && AbsSPAdj != Size) {
           report("FrameDestroy <n> is after FrameSetup <m>", &I);
           errs() << "FrameDestroy <" << Size << "> is after FrameSetup <"
               << AbsSPAdj << ">.\n";

lib/CodeGen/SelectionDAG/FastISel.cpp

assert(I->getCalledFunction()->getReturnType()->isVoidTy() &&
          "Stackmap cannot return a value.");
 
   // The stackmap intrinsic only records the live variables (the arguments
   // passed to it) and emits NOPS (if requested). Unlike the patchpoint
   // intrinsic, this won't be lowered to a function call. This means we don't
   // have to worry about calling conventions and target-specific lowering code.
   // Instead we perform the call lowering right here.
   //
-  // CALLSEQ_START(0...)
+  // CALLSEQ_START(0, 0...)
   // STACKMAP(id, nbytes, ...)
   // CALLSEQ_END(0, 0)
   //
   SmallVector<MachineOperand, 32> Ops;
 
   // Add the <id> and <numBytes> constants.
   assert(isa<ConstantInt>(I->getOperand(PatchPointOpers::IDPos)) &&
          "Expected a constant integer.");

lib/CodeGen/SelectionDAG/LegalizeDAG.cpp

void SelectionDAGLegalize::ExpandDYNAMIC_STACKALLOC(SDNode* Node,
   EVT VT = Node->getValueType(0);
   SDValue Tmp1 = SDValue(Node, 0);
   SDValue Tmp2 = SDValue(Node, 1);
   SDValue Tmp3 = Node->getOperand(2);
   SDValue Chain = Tmp1.getOperand(0);
 
   // Chain the dynamic stack allocation so that it doesn't modify the stack
   // pointer when other instructions are using the stack.
-  Chain = DAG.getCALLSEQ_START(Chain, DAG.getIntPtrConstant(0, dl, true), dl);
+  Chain = DAG.getCALLSEQ_START(Chain, 0, 0, dl);
 
   SDValue Size  = Tmp2.getOperand(1);
   SDValue SP = DAG.getCopyFromReg(Chain, dl, SPReg, VT);
   Chain = SP.getValue(1);
   unsigned Align = cast<ConstantSDNode>(Tmp3)->getZExtValue();
   unsigned StackAlign =
       DAG.getSubtarget().getFrameLowering()->getStackAlignment();
   Tmp1 = DAG.getNode(ISD::SUB, dl, VT, SP, Size);       // Value

lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp

void SelectionDAGBuilder::visitStackmap(const CallInst &CI) {
   NullPtr = DAG.getIntPtrConstant(0, DL, true);
 
   // The stackmap intrinsic only records the live variables (the arguemnts
   // passed to it) and emits NOPS (if requested). Unlike the patchpoint
   // intrinsic, this won't be lowered to a function call. This means we don't
   // have to worry about calling conventions and target specific lowering code.
   // Instead we perform the call lowering right here.
   //
-  // chain, flag = CALLSEQ_START(chain, 0)
+  // chain, flag = CALLSEQ_START(chain, 0, 0)
   // chain, flag = STACKMAP(id, nbytes, ..., chain, flag)
   // chain, flag = CALLSEQ_END(chain, 0, 0, flag)
   //
-  Chain = DAG.getCALLSEQ_START(getRoot(), NullPtr, DL);
+  Chain = DAG.getCALLSEQ_START(getRoot(), 0, 0, DL);
   InFlag = Chain.getValue(1);
 
   // Add the <id> and <numBytes> constants.
   SDValue IDVal = getValue(CI.getOperand(PatchPointOpers::IDPos));
   Ops.push_back(DAG.getTargetConstant(
                   cast<ConstantSDNode>(IDVal)->getZExtValue(), DL, MVT::i64));
   SDValue NBytesVal = getValue(CI.getOperand(PatchPointOpers::NBytesPos));
   Ops.push_back(DAG.getTargetConstant(

lib/Target/AArch64/AArch64CallLowering.cpp

if (OrigRet.Reg) {
     CallReturnHandler Handler(MIRBuilder, MRI, MIB, RetAssignFn);
     if (!handleAssignments(MIRBuilder, SplitArgs, Handler))
       return false;
 
     if (!RegOffsets.empty())
       MIRBuilder.buildSequence(OrigRet.Reg, SplitRegs, RegOffsets);
   }
 
-  CallSeqStart.addImm(Handler.StackSize);
+  CallSeqStart.addImm(Handler.StackSize).addImm(0);
   MIRBuilder.buildInstr(AArch64::ADJCALLSTACKUP)
       .addImm(Handler.StackSize)
       .addImm(0);
 
   return true;
 }

lib/Target/AArch64/AArch64FastISel.cpp

bool AArch64FastISel::processCallArgs(CallLoweringInfo &CLI,
   CCInfo.AnalyzeCallOperands(OutVTs, CLI.OutFlags, CCAssignFnForCall(CC));
 
   // Get a count of how many bytes are to be pushed on the stack.
   NumBytes = CCInfo.getNextStackOffset();
 
   // Issue CALLSEQ_START
   unsigned AdjStackDown = TII.getCallFrameSetupOpcode();
   BuildMI(*FuncInfo.MBB, FuncInfo.InsertPt, DbgLoc, TII.get(AdjStackDown))
-    .addImm(NumBytes);
+    .addImm(NumBytes).addImm(0);
 
   // Process the args.
   for (CCValAssign &VA : ArgLocs) {
     const Value *ArgVal = CLI.OutVals[VA.getValNo()];
     MVT ArgVT = OutVTs[VA.getValNo()];
 
     unsigned ArgReg = getRegForValue(ArgVal);
     if (!ArgReg)

lib/Target/AArch64/AArch64ISelLowering.cpp

if (IsTailCall && !IsSibCall) {
     // a 16-byte aligned SP and the delta applied for the tail call should
     // satisfy the same constraint.
     assert(FPDiff % 16 == 0 && "unaligned stack on tail call");
   }
 
   // Adjust the stack pointer for the new arguments...
   // These operations are automatically eliminated by the prolog/epilog pass
   if (!IsSibCall)
-    Chain = DAG.getCALLSEQ_START(Chain, DAG.getIntPtrConstant(NumBytes, DL,
-                                                              true),
-                                 DL);
+    Chain = DAG.getCALLSEQ_START(Chain, NumBytes, 0, DL);
 
   SDValue StackPtr = DAG.getCopyFromReg(Chain, DL, AArch64::SP,
                                         getPointerTy(DAG.getDataLayout()));
 
   SmallVector<std::pair<unsigned, SDValue>, 8> RegsToPass;
   SmallVector<SDValue, 8> MemOpChains;
   auto PtrVT = getPointerTy(DAG.getDataLayout());
 

lib/Target/AArch64/AArch64InstrInfo.td

def SDT_AArch64WrapperLarge : SDTypeProfile<1, 4,
                                          SDTCisSameAs<1, 4>]>;
 
 
 // Node definitions.
 def AArch64adrp          : SDNode<"AArch64ISD::ADRP", SDTIntUnaryOp, []>;
 def AArch64addlow        : SDNode<"AArch64ISD::ADDlow", SDTIntBinOp, []>;
 def AArch64LOADgot       : SDNode<"AArch64ISD::LOADgot", SDTIntUnaryOp>;
 def AArch64callseq_start : SDNode<"ISD::CALLSEQ_START",
-                                SDCallSeqStart<[ SDTCisVT<0, i32> ]>,
+                                SDCallSeqStart<[ SDTCisVT<0, i32>,
+                                                 SDTCisVT<1, i32> ]>,
                                 [SDNPHasChain, SDNPOutGlue]>;
 def AArch64callseq_end   : SDNode<"ISD::CALLSEQ_END",
                                 SDCallSeqEnd<[ SDTCisVT<0, i32>,
                                                SDTCisVT<1, i32> ]>,
                                 [SDNPHasChain, SDNPOptInGlue, SDNPOutGlue]>;
 def AArch64call          : SDNode<"AArch64ISD::CALL",
                                 SDTypeProfile<0, -1, [SDTCisPtrTy<0>]>,
                                 [SDNPHasChain, SDNPOptInGlue, SDNPOutGlue,

 
 //===----------------------------------------------------------------------===//
 // Miscellaneous instructions.
 //===----------------------------------------------------------------------===//
 
 let Defs = [SP], Uses = [SP], hasSideEffects = 1, isCodeGenOnly = 1 in {
 // We set Sched to empty list because we expect these instructions to simply get
 // removed in most cases.
-def ADJCALLSTACKDOWN : Pseudo<(outs), (ins i32imm:$amt),
-                              [(AArch64callseq_start timm:$amt)]>, Sched<[]>;
+def ADJCALLSTACKDOWN : Pseudo<(outs), (ins i32imm:$amt1, i32imm:$amt2),
+                              [(AArch64callseq_start timm:$amt1, timm:$amt2)]>,
+                              Sched<[]>;
 def ADJCALLSTACKUP : Pseudo<(outs), (ins i32imm:$amt1, i32imm:$amt2),
                             [(AArch64callseq_end timm:$amt1, timm:$amt2)]>,
                             Sched<[]>;
 } // Defs = [SP], Uses = [SP], hasSideEffects = 1, isCodeGenOnly = 1
 
 let isReMaterializable = 1, isCodeGenOnly = 1 in {
 // FIXME: The following pseudo instructions are only needed because remat
 // cannot handle multiple instructions.  When that changes, they can be

lib/Target/ARM/ARMBaseInstrInfo.h

public:
 
   /// Returns true if the instruction has a shift by immediate that can be
   /// executed in one cycle less.
   bool isSwiftFastImmShift(const MachineInstr *MI) const;
 
   /// Returns predicate register associated with the given frame instruction.
   unsigned getFramePred(const MachineInstr &MI) const {
     assert(isFrameInstr(MI));
-    if (isFrameSetup(MI))
-      // Operands of ADJCALLSTACKDOWN:
-      // - argument declared in ADJCALLSTACKDOWN pattern:
-      // 0 - frame size
-      // 1 - predicate code (like ARMCC::AL)
-      // - added by predOps:
-      // 2 - predicate reg
-      return MI.getOperand(2).getReg();
-    assert(MI.getOpcode() == ARM::ADJCALLSTACKUP ||
-           MI.getOpcode() == ARM::tADJCALLSTACKUP);
-    // Operands of ADJCALLSTACKUP:
-    // - argument declared in ADJCALLSTACKUP pattern:
-    // 0 - frame size
-    // 1 - arg of CALLSEQ_END
-    // 2 - predicate code
+    // Operands of ADJCALLSTACKDOWN/ADJCALLSTACKUP:
+    // - argument declared in the pattern:
+    // 1 - arg of CALLSEQ_START/CALLSEQ_END
+    // 2 - predicate code (like ARMCC::AL)
     // - added by predOps:
     // 3 - predicate reg
     return MI.getOperand(3).getReg();
   }
 };
 
 /// Get the operands corresponding to the given \p Pred value. By default, the
 /// predicate register is assumed to be 0 (no register), but you can pass in a

lib/Target/ARM/ARMCallLowering.cpp

if (!OrigRet.Ty->isVoidTy()) {
     auto RetAssignFn = TLI.CCAssignFnForReturn(CallConv, /*IsVarArg=*/false);
     CallReturnHandler RetHandler(MIRBuilder, MRI, MIB, RetAssignFn);
     if (!handleAssignments(MIRBuilder, ArgInfos, RetHandler))
       return false;
   }
 
   // We now know the size of the stack - update the ADJCALLSTACKDOWN
   // accordingly.
-  CallSeqStart.addImm(ArgHandler.StackSize).add(predOps(ARMCC::AL));
+  CallSeqStart.addImm(ArgHandler.StackSize).addImm(0).add(predOps(ARMCC::AL));
 
   MIRBuilder.buildInstr(ARM::ADJCALLSTACKUP)
       .addImm(ArgHandler.StackSize)
       .addImm(0)
       .add(predOps(ARMCC::AL));
 
   return true;
 }

lib/Target/ARM/ARMFastISel.cpp

bool ARMFastISel::ProcessCallArgs(SmallVectorImpl<Value*> &Args,
 
   // Get a count of how many bytes are to be pushed on the stack.
   NumBytes = CCInfo.getNextStackOffset();
 
   // Issue CALLSEQ_START
   unsigned AdjStackDown = TII.getCallFrameSetupOpcode();
   AddOptionalDefs(BuildMI(*FuncInfo.MBB, FuncInfo.InsertPt, DbgLoc,
                           TII.get(AdjStackDown))
-                  .addImm(NumBytes));
+                  .addImm(NumBytes).addImm(0));
 
   // Process the args.
   for (unsigned i = 0, e = ArgLocs.size(); i != e; ++i) {
     CCValAssign &VA = ArgLocs[i];
     const Value *ArgVal = Args[VA.getValNo()];
     unsigned Arg = ArgRegs[VA.getValNo()];
     MVT ArgVT = ArgVTs[VA.getValNo()];
 

lib/Target/ARM/ARMISelLowering.cpp

ARMTargetLowering::LowerCall(TargetLowering::CallLoweringInfo &CLI,
 
   // For tail calls, memory operands are available in our caller's stack.
   if (isSibCall)
     NumBytes = 0;
 
   // Adjust the stack pointer for the new arguments...
   // These operations are automatically eliminated by the prolog/epilog pass
   if (!isSibCall)
-    Chain = DAG.getCALLSEQ_START(Chain,
-                                 DAG.getIntPtrConstant(NumBytes, dl, true), dl);
+    Chain = DAG.getCALLSEQ_START(Chain, NumBytes, 0, dl);
 
   SDValue StackPtr =
       DAG.getCopyFromReg(Chain, dl, ARM::SP, getPointerTy(DAG.getDataLayout()));
 
   RegsToPassVector RegsToPass;
   SmallVector<SDValue, 8> MemOpChains;
 
   // Walk the register/memloc assignments, inserting copies/loads.  In the case

lib/Target/ARM/ARMInstrInfo.td

 //
 //===----------------------------------------------------------------------===//
 
 //===----------------------------------------------------------------------===//
 // ARM specific DAG Nodes.
 //
 
 // Type profiles.
-def SDT_ARMCallSeqStart : SDCallSeqStart<[ SDTCisVT<0, i32> ]>;
+def SDT_ARMCallSeqStart : SDCallSeqStart<[ SDTCisVT<0, i32>,
+                                           SDTCisVT<1, i32> ]>;
 def SDT_ARMCallSeqEnd   : SDCallSeqEnd<[ SDTCisVT<0, i32>, SDTCisVT<1, i32> ]>;
 def SDT_ARMStructByVal : SDTypeProfile<0, 4,
                                        [SDTCisVT<0, i32>, SDTCisVT<1, i32>,
                                         SDTCisVT<2, i32>, SDTCisVT<3, i32>]>;
 
 def SDT_ARMSaveCallPC : SDTypeProfile<0, 1, []>;
 
 def SDT_ARMcall    : SDTypeProfile<0, -1, [SDTCisPtrTy<0>]>;

 // from removing one half of the matched pairs. That breaks PEI, which assumes
 // these will always be in pairs, and asserts if it finds otherwise. Better way?
 let Defs = [SP], Uses = [SP], hasSideEffects = 1 in {
 def ADJCALLSTACKUP :
 PseudoInst<(outs), (ins i32imm:$amt1, i32imm:$amt2, pred:$p), NoItinerary,
            [(ARMcallseq_end timm:$amt1, timm:$amt2)]>;
 
 def ADJCALLSTACKDOWN :
-PseudoInst<(outs), (ins i32imm:$amt, pred:$p), NoItinerary,
-           [(ARMcallseq_start timm:$amt)]>;
+PseudoInst<(outs), (ins i32imm:$amt, i32imm:$amt2, pred:$p), NoItinerary,
+           [(ARMcallseq_start timm:$amt, timm:$amt2)]>;
 }
 
 def HINT : AI<(outs), (ins imm0_239:$imm), MiscFrm, NoItinerary,
               "hint", "\t$imm", [(int_arm_hint imm0_239:$imm)]>,
            Requires<[IsARM, HasV6]> {
   bits<8> imm;
   let Inst{27-8} = 0b00110010000011110000;
   let Inst{7-0} = imm;

lib/Target/ARM/ARMInstrThumb.td

 // these will always be in pairs, and asserts if it finds otherwise. Better way?
 let Defs = [SP], Uses = [SP], hasSideEffects = 1 in {
 def tADJCALLSTACKUP :
   PseudoInst<(outs), (ins i32imm:$amt1, i32imm:$amt2), NoItinerary,
              [(ARMcallseq_end imm:$amt1, imm:$amt2)]>,
             Requires<[IsThumb, IsThumb1Only]>;
 
 def tADJCALLSTACKDOWN :
-  PseudoInst<(outs), (ins i32imm:$amt), NoItinerary,
-             [(ARMcallseq_start imm:$amt)]>,
+  PseudoInst<(outs), (ins i32imm:$amt, i32imm:$amt2), NoItinerary,
+             [(ARMcallseq_start imm:$amt, imm:$amt2)]>,
             Requires<[IsThumb, IsThumb1Only]>;
 }
 
 class T1SystemEncoding<bits<8> opc>
   : T1Encoding<0b101111> {
   let Inst{9-8} = 0b11;
   let Inst{7-0} = opc;
 }

lib/Target/AVR/AVRFrameLowering.cpp

MachineBasicBlock::iterator AVRFrameLowering::eliminateCallFramePseudoInstr(
   // with real store instructions.
   if (TFI.hasReservedCallFrame(MF)) {
     fixStackStores(MBB, MI, TII, false);
     return MBB.erase(MI);
   }
 
   DebugLoc DL = MI->getDebugLoc();
   unsigned int Opcode = MI->getOpcode();
-  int Amount = MI->getOperand(0).getImm();
+  int Amount = TII.getFrameSize(*MI);
 
   // Adjcallstackup does not need to allocate stack space for the call, instead
   // we insert push instructions that will allocate the necessary stack.
   // For adjcallstackdown we convert it into an 'adiw reg, <amt>' handling
   // the read and write of SP in I/O space.
   if (Amount != 0) {
     assert(TFI.getStackAlignment() == 1 && "Unsupported stack alignment");
 

lib/Target/AVR/AVRISelLowering.cpp

SDValue AVRTargetLowering::LowerCall(TargetLowering::CallLoweringInfo &CLI,
   }
 
   analyzeArguments(&CLI, F, &DAG.getDataLayout(), &Outs, 0, CallConv, ArgLocs, CCInfo,
                    true, isVarArg);
 
   // Get a count of how many bytes are to be pushed on the stack.
   unsigned NumBytes = CCInfo.getNextStackOffset();
 
-  Chain = DAG.getCALLSEQ_START(Chain, DAG.getIntPtrConstant(NumBytes, DL, true),
-                               DL);
+  Chain = DAG.getCALLSEQ_START(Chain, NumBytes, 0, DL);
 
   SmallVector<std::pair<unsigned, SDValue>, 8> RegsToPass;
 
   // First, walk the register assignments, inserting copies.
   unsigned AI, AE;
   bool HasStackArgs = false;
   for (AI = 0, AE = ArgLocs.size(); AI != AE; ++AI) {
     CCValAssign &VA = ArgLocs[AI];

lib/Target/AVR/AVRInstrInfo.td

 //===----------------------------------------------------------------------===//
 
 include "AVRInstrFormats.td"
 
 //===----------------------------------------------------------------------===//
 // AVR Type Profiles
 //===----------------------------------------------------------------------===//
 
-def SDT_AVRCallSeqStart : SDCallSeqStart<[SDTCisVT<0, i16>]>;
+def SDT_AVRCallSeqStart : SDCallSeqStart<[SDTCisVT<0, i16>, SDTCisVT<1, i16>]>;
 def SDT_AVRCallSeqEnd : SDCallSeqEnd<[SDTCisVT<0, i16>, SDTCisVT<1, i16>]>;
 def SDT_AVRCall : SDTypeProfile<0, -1, [SDTCisVT<0, iPTR>]>;
 def SDT_AVRWrapper : SDTypeProfile<1, 1, [SDTCisSameAs<0, 1>, SDTCisPtrTy<0>]>;
 def SDT_AVRBrcond : SDTypeProfile<0, 2,
                                   [SDTCisVT<0, OtherVT>, SDTCisVT<1, i8>]>;
 def SDT_AVRCmp : SDTypeProfile<0, 2, [SDTCisSameAs<0, 1>]>;
 def SDT_AVRTst : SDTypeProfile<0, 1, [SDTCisInt<0>]>;
 def SDT_AVRSelectCC : SDTypeProfile<1, 3, [SDTCisSameAs<0, 1>,

 // a stack adjustment and the codegen must know that they may modify the stack
 // pointer before prolog-epilog rewriting occurs.
 // Pessimistically assume ADJCALLSTACKDOWN / ADJCALLSTACKUP will become
 // sub / add which can clobber SREG.
 let Defs = [SP, SREG],
 Uses = [SP] in
 {
   def ADJCALLSTACKDOWN : Pseudo<(outs),
-                                (ins i16imm:$amt),
+                                (ins i16imm:$amt, i16imm:$amt2),
                                 "#ADJCALLSTACKDOWN",
-                                [(AVRcallseq_start timm:$amt)]>;
+                                [(AVRcallseq_start timm:$amt, timm:$amt2)]>;
 
   // R31R30 is used to update SP, since it is a scratch reg and this instruction
   // is placed after the function call then R31R30 should be always free.
   //let Defs = [R31R30],
   //Uses = [R31R30] in
   //:TODO: if we enable this, the pseudo is killed because it looks dead
   def ADJCALLSTACKUP : Pseudo<(outs),
                               (ins i16imm:$amt1, i16imm:$amt2),

lib/Target/BPF/BPFISelLowering.cpp

for (auto &Arg : Outs) {
     ISD::ArgFlagsTy Flags = Arg.Flags;
     if (!Flags.isByVal())
       continue;
 
     fail(CLI.DL, DAG, "pass by value not supported ", Callee);
   }
 
   auto PtrVT = getPointerTy(MF.getDataLayout());
-  Chain = DAG.getCALLSEQ_START(
-      Chain, DAG.getConstant(NumBytes, CLI.DL, PtrVT, true), CLI.DL);
+  Chain = DAG.getCALLSEQ_START(Chain, NumBytes, 0, CLI.DL);
 
   SmallVector<std::pair<unsigned, SDValue>, MaxArgs> RegsToPass;
 
   // Walk arg assignments
   for (unsigned i = 0,
                 e = std::min(static_cast<unsigned>(ArgLocs.size()), MaxArgs);
        i != e; ++i) {
     CCValAssign &VA = ArgLocs[i];

lib/Target/BPF/BPFInstrInfo.td

 //
 //===----------------------------------------------------------------------===//
 
 include "BPFInstrFormats.td"
 
 // Instruction Operands and Patterns
 
 // These are target-independent nodes, but have target-specific formats.
-def SDT_BPFCallSeqStart : SDCallSeqStart<[SDTCisVT<0, iPTR>]>;
+def SDT_BPFCallSeqStart : SDCallSeqStart<[SDTCisVT<0, iPTR>,
+                                          SDTCisVT<1, iPTR>]>;
 def SDT_BPFCallSeqEnd   : SDCallSeqEnd<[SDTCisVT<0, iPTR>, SDTCisVT<1, iPTR>]>;
 def SDT_BPFCall         : SDTypeProfile<0, -1, [SDTCisVT<0, iPTR>]>;
 def SDT_BPFSetFlag      : SDTypeProfile<0, 3, [SDTCisSameAs<0, 1>]>;
 def SDT_BPFSelectCC     : SDTypeProfile<1, 5, [SDTCisSameAs<1, 2>,
                                                SDTCisSameAs<0, 4>,
                                                SDTCisSameAs<4, 5>]>;
 def SDT_BPFBrCC         : SDTypeProfile<0, 4, [SDTCisSameAs<0, 1>,
                                                SDTCisVT<3, OtherVT>]>;

 
 let isReturn = 1, isTerminator = 1, hasDelaySlot=0, isBarrier = 1,
     isNotDuplicable = 1 in {
   def RET : RET<"exit">;
 }
 
 // ADJCALLSTACKDOWN/UP pseudo insns
 let Defs = [R11], Uses = [R11] in {
-def ADJCALLSTACKDOWN : Pseudo<(outs), (ins i64imm:$amt),
-                              "#ADJCALLSTACKDOWN $amt",
-                              [(BPFcallseq_start timm:$amt)]>;
+def ADJCALLSTACKDOWN : Pseudo<(outs), (ins i64imm:$amt1, i64imm:$amt2),
+                              "#ADJCALLSTACKDOWN $amt1 $amt2",
+                              [(BPFcallseq_start timm:$amt1, timm:$amt2)]>;
 def ADJCALLSTACKUP   : Pseudo<(outs), (ins i64imm:$amt1, i64imm:$amt2),
                               "#ADJCALLSTACKUP $amt1 $amt2",
                               [(BPFcallseq_end timm:$amt1, timm:$amt2)]>;
 }
 
 let usesCustomInserter = 1 in {
   def Select : Pseudo<(outs GPR:$dst),
                       (ins GPR:$lhs, GPR:$rhs, i64imm:$imm, GPR:$src, GPR:$src2),

lib/Target/Hexagon/HexagonISelLowering.cpp

HexagonTargetLowering::LowerCall(TargetLowering::CallLoweringInfo &CLI,
   }
   // Transform all store nodes into one single node because all store
   // nodes are independent of each other.
   if (!MemOpChains.empty())
     Chain = DAG.getNode(ISD::TokenFactor, dl, MVT::Other, MemOpChains);
 
   SDValue Glue;
   if (!IsTailCall) {
-    SDValue C = DAG.getConstant(NumBytes, dl, PtrVT, true);
-    Chain = DAG.getCALLSEQ_START(Chain, C, dl);
+    Chain = DAG.getCALLSEQ_START(Chain, NumBytes, 0, dl);
     Glue = Chain.getValue(1);
   }
 
   // Build a sequence of copy-to-reg nodes chained together with token
   // chain and flag operands which copy the outgoing args into registers.
   // The Glue is necessary since all emitted instructions must be
   // stuck together.
   if (!IsTailCall) {

lib/Target/Hexagon/HexagonPatterns.td

 def: Pat<(HexagonCONST32 tglobaltlsaddr:$addr), (A2_tfrsi s32_0Imm:$addr)>;
 def: Pat<(HexagonCONST32 bbl:$label),           (A2_tfrsi s32_0Imm:$label)>;
 
 def: Pat<(i64 imm:$v), (CONST64 imm:$v)>;
 def: Pat<(i1 0), (PS_false)>;
 def: Pat<(i1 1), (PS_true)>;
 
 // Pseudo instructions.
-def SDT_SPCallSeqStart : SDCallSeqStart<[ SDTCisVT<0, i32> ]>;
+def SDT_SPCallSeqStart : SDCallSeqStart<[ SDTCisVT<0, i32>,
+                                          SDTCisVT<1, i32> ]>;
 def SDT_SPCallSeqEnd   : SDCallSeqEnd<[ SDTCisVT<0, i32>,
                                         SDTCisVT<1, i32> ]>;
 
 def callseq_start : SDNode<"ISD::CALLSEQ_START", SDT_SPCallSeqStart,
                     [SDNPHasChain, SDNPOutGlue]>;
 def callseq_end   : SDNode<"ISD::CALLSEQ_END",   SDT_SPCallSeqEnd,
                     [SDNPHasChain, SDNPOptInGlue, SDNPOutGlue]>;
 
 def SDT_SPCall  : SDTypeProfile<0, 1, [SDTCisVT<0, i32>]>;
 
 // For tailcalls a HexagonTCRet SDNode has 3 SDNode Properties - a chain,
 // Optional Flag and Variable Arguments.
 // Its 1 Operand has pointer type.
 def HexagonTCRet : SDNode<"HexagonISD::TC_RETURN", SDT_SPCall,
                           [SDNPHasChain,  SDNPOptInGlue, SDNPVariadic]>;
 
 
-def: Pat<(callseq_start timm:$amt),
-          (ADJCALLSTACKDOWN imm:$amt)>;
+def: Pat<(callseq_start timm:$amt, timm:$amt2),
+          (ADJCALLSTACKDOWN imm:$amt, imm:$amt2)>;
 def: Pat<(callseq_end timm:$amt1, timm:$amt2),
          (ADJCALLSTACKUP imm:$amt1, imm:$amt2)>;
 
 //Tail calls.
 def: Pat<(HexagonTCRet tglobaladdr:$dst),
          (PS_tailcall_i tglobaladdr:$dst)>;
 def: Pat<(HexagonTCRet texternalsym:$dst),
          (PS_tailcall_i texternalsym:$dst)>;

lib/Target/Hexagon/HexagonPseudo.td

let hasSideEffects = 0, isReMaterializable = 1, isPseudo = 1,
     isCodeGenOnly = 1 in
 def PS_true : SInst<(outs PredRegs:$dst), (ins), "", []>;
 
 let hasSideEffects = 0, isReMaterializable = 1, isPseudo = 1,
     isCodeGenOnly = 1 in
 def PS_false : SInst<(outs PredRegs:$dst), (ins), "", []>;
 
 let Defs = [R29, R30], Uses = [R31, R30, R29], isPseudo = 1 in
-def ADJCALLSTACKDOWN : Pseudo<(outs), (ins i32imm:$amt),
+def ADJCALLSTACKDOWN : Pseudo<(outs), (ins i32imm:$amt1, i32imm:$amt2),
                               ".error \"should not emit\" ", []>;
 
 let Defs = [R29, R30, R31], Uses = [R29], isPseudo = 1 in
 def ADJCALLSTACKUP : Pseudo<(outs), (ins i32imm:$amt1, i32imm:$amt2),
                              ".error \"should not emit\" ", []>;
 
 
 let isBranch = 1, isTerminator = 1, hasSideEffects = 0,

lib/Target/Lanai/LanaiISelLowering.cpp

for (unsigned I = 0, E = Outs.size(); I != E; ++I) {
     Chain = DAG.getMemcpy(Chain, DL, FIPtr, Arg, SizeNode, Align,
                           /*IsVolatile=*/false,
                           /*AlwaysInline=*/false,
                           /*isTailCall=*/false, MachinePointerInfo(),
                           MachinePointerInfo());
     ByValArgs.push_back(FIPtr);
   }
 
-  Chain = DAG.getCALLSEQ_START(
-      Chain,
-      DAG.getConstant(NumBytes, DL, getPointerTy(DAG.getDataLayout()), true),
-      DL);
+  Chain = DAG.getCALLSEQ_START(Chain, NumBytes, 0, DL);
 
   SmallVector<std::pair<unsigned, SDValue>, 4> RegsToPass;
   SmallVector<SDValue, 12> MemOpChains;
   SDValue StackPtr;
 
   // Walk the register/memloc assignments, inserting copies/loads.
   for (unsigned I = 0, J = 0, E = ArgLocs.size(); I != E; ++I) {
     CCValAssign &VA = ArgLocs[I];

lib/Target/Lanai/LanaiInstrInfo.td

 
 include "LanaiInstrFormats.td"
 
 // -------------------------------------------------- //
 // Instruction Operands and Patterns
 // -------------------------------------------------- //
 
 //  These are target-independent nodes, but have target-specific formats.
-def SDT_LanaiCallSeqStart : SDCallSeqStart<[SDTCisVT<0, i32>]>;
+def SDT_LanaiCallSeqStart : SDCallSeqStart<[SDTCisVT<0, i32>,
+                                            SDTCisVT<1, i32>]>;
 def SDT_LanaiCallSeqEnd   : SDCallSeqEnd<[SDTCisVT<0, i32>,
                                           SDTCisVT<1, i32>]>;
 def SDT_LanaiCall         : SDTypeProfile<0, -1, [SDTCisVT<0, i32>]>;
 def SDT_LanaiSetFlag      : SDTypeProfile<0,  2, [SDTCisSameAs<0, 1>]>;
 def SDT_LanaiSelectCC     : SDTypeProfile<1,  3, [SDTCisSameAs<0, 1>,
                                                   SDTCisSameAs<1, 2>]>;
 def SDT_LanaiSetCC        : SDTypeProfile<1,  1, [SDTCisVT<0, i32>,
                                                   SDTCisVT<1, i32>]>;

 }
 
 // ADJCALLSTACKDOWN/UP implicitly use/def SP because they may be expanded into
 // a stack adjustment and the codegen must know that they may modify the stack
 // pointer before prolog-epilog rewriting occurs.
 // Pessimistically assume ADJCALLSTACKDOWN / ADJCALLSTACKUP will become
 // sub / add which can clobber SP.
 let Defs = [SP], Uses = [SP] in {
-  def ADJCALLSTACKDOWN : Pseudo<(outs), (ins i32imm:$amt),
-                                "#ADJCALLSTACKDOWN $amt",
-                                [(CallSeqStart timm:$amt)]>;
+  def ADJCALLSTACKDOWN : Pseudo<(outs), (ins i32imm:$amt1, i32imm:$amt2),
+                                "#ADJCALLSTACKDOWN $amt1 $amt2",
+                                [(CallSeqStart timm:$amt1, timm:$amt2)]>;
   def ADJCALLSTACKUP   : Pseudo<(outs), (ins i32imm:$amt1, i32imm:$amt2),
                                 "#ADJCALLSTACKUP $amt1 $amt2",
                                 [(CallSeqEnd timm:$amt1, timm:$amt2)]>;
 }
 
 let Defs = [SP], Uses = [SP] in {
   def ADJDYNALLOC : Pseudo<(outs GPR:$dst), (ins GPR:$src),
                            "#ADJDYNALLOC $dst $src",

lib/Target/MSP430/MSP430FrameLowering.cpp

MachineBasicBlock::iterator MSP430FrameLowering::eliminateCallFramePseudoInstr(
   unsigned StackAlign = getStackAlignment();
 
   if (!hasReservedCallFrame(MF)) {
     // If the stack pointer can be changed after prologue, turn the
     // adjcallstackup instruction into a 'sub SP, <amt>' and the
     // adjcallstackdown instruction into 'add SP, <amt>'
     // TODO: consider using push / pop instead of sub + store / add
     MachineInstr &Old = *I;
-    uint64_t Amount = Old.getOperand(0).getImm();
+    uint64_t Amount = TII.getFrameSize(Old);
     if (Amount != 0) {
       // We need to keep the stack aligned properly.  To do this, we round the
       // amount of space needed for the outgoing arguments up to the next
       // alignment boundary.
       Amount = (Amount+StackAlign-1)/StackAlign*StackAlign;
 
       MachineInstr *New = nullptr;
       if (Old.getOpcode() == TII.getCallFrameSetupOpcode()) {
         New =
             BuildMI(MF, Old.getDebugLoc(), TII.get(MSP430::SUB16ri), MSP430::SP)
                 .addReg(MSP430::SP)
                 .addImm(Amount);
       } else {
         assert(Old.getOpcode() == TII.getCallFrameDestroyOpcode());
         // factor out the amount the callee already popped.
-        uint64_t CalleeAmt = Old.getOperand(1).getImm();
-        Amount -= CalleeAmt;
+        Amount -= TII.getFramePoppedByCallee(Old);
         if (Amount)
           New = BuildMI(MF, Old.getDebugLoc(), TII.get(MSP430::ADD16ri),
                         MSP430::SP)
                     .addReg(MSP430::SP)
                     .addImm(Amount);
       }
 
       if (New) {
         // The SRW implicit def is dead.
         New->getOperand(3).setIsDead();
 
         // Replace the pseudo instruction with a new instruction...
         MBB.insert(I, New);
       }
     }
   } else if (I->getOpcode() == TII.getCallFrameDestroyOpcode()) {
     // If we are performing frame pointer elimination and if the callee pops
     // something off the stack pointer, add it back.
-    if (uint64_t CalleeAmt = I->getOperand(1).getImm()) {
+    if (uint64_t CalleeAmt = TII.getFramePoppedByCallee(*I)) {
       MachineInstr &Old = *I;
       MachineInstr *New =
           BuildMI(MF, Old.getDebugLoc(), TII.get(MSP430::SUB16ri), MSP430::SP)
               .addReg(MSP430::SP)
               .addImm(CalleeAmt);
       // The SRW implicit def is dead.
       New->getOperand(3).setIsDead();
 

lib/Target/MSP430/MSP430ISelLowering.cpp

SDValue MSP430TargetLowering::LowerCCCCallTo(
   CCState CCInfo(CallConv, isVarArg, DAG.getMachineFunction(), ArgLocs,
                  *DAG.getContext());
   AnalyzeArguments(CCInfo, ArgLocs, Outs);
 
   // Get a count of how many bytes are to be pushed on the stack.
   unsigned NumBytes = CCInfo.getNextStackOffset();
   auto PtrVT = getPointerTy(DAG.getDataLayout());
 
-  Chain = DAG.getCALLSEQ_START(Chain,
-                               DAG.getConstant(NumBytes, dl, PtrVT, true), dl);
+  Chain = DAG.getCALLSEQ_START(Chain, NumBytes, 0, dl);
 
   SmallVector<std::pair<unsigned, SDValue>, 4> RegsToPass;
   SmallVector<SDValue, 12> MemOpChains;
   SDValue StackPtr;
 
   // Walk the register/memloc assignments, inserting copies/loads.
   for (unsigned i = 0, e = ArgLocs.size(); i != e; ++i) {
     CCValAssign &VA = ArgLocs[i];

lib/Target/MSP430/MSP430InstrInfo.h

bool analyzeBranch(MachineBasicBlock &MBB, MachineBasicBlock *&TBB,
                      bool AllowModify) const override;
 
   unsigned removeBranch(MachineBasicBlock &MBB,
                         int *BytesRemoved = nullptr) const override;
   unsigned insertBranch(MachineBasicBlock &MBB, MachineBasicBlock *TBB,
                         MachineBasicBlock *FBB, ArrayRef<MachineOperand> Cond,
                         const DebugLoc &DL,
                         int *BytesAdded = nullptr) const override;
+
+  int64_t getFramePoppedByCallee(const MachineInstr &I) const {
+    assert(isFrameInstr(I));
+    assert(I.getOperand(1).getImm() >= 0);
+    return I.getOperand(1).getImm();
+  }
 };
 
 }
 
 #endif

lib/Target/MSP430/MSP430InstrInfo.td

 //===----------------------------------------------------------------------===//
 class SDTCisI8<int OpNum> : SDTCisVT<OpNum, i8>;
 class SDTCisI16<int OpNum> : SDTCisVT<OpNum, i16>;
 
 //===----------------------------------------------------------------------===//
 // Type Profiles.
 //===----------------------------------------------------------------------===//
 def SDT_MSP430Call         : SDTypeProfile<0, -1, [SDTCisVT<0, iPTR>]>;
-def SDT_MSP430CallSeqStart : SDCallSeqStart<[SDTCisVT<0, i16>]>;
+def SDT_MSP430CallSeqStart : SDCallSeqStart<[SDTCisVT<0, i16>,
+                                             SDTCisVT<1, i16>]>;
 def SDT_MSP430CallSeqEnd   : SDCallSeqEnd<[SDTCisVT<0, i16>, SDTCisVT<1, i16>]>;
 def SDT_MSP430Wrapper      : SDTypeProfile<1, 1, [SDTCisSameAs<0, 1>,
                                                   SDTCisPtrTy<0>]>;
 def SDT_MSP430Cmp          : SDTypeProfile<0, 2, [SDTCisSameAs<0, 1>]>;
 def SDT_MSP430BrCC         : SDTypeProfile<0, 2, [SDTCisVT<0, OtherVT>,
                                                   SDTCisVT<1, i8>]>;
 def SDT_MSP430SelectCC     : SDTypeProfile<1, 3, [SDTCisSameAs<0, 1>,
                                                   SDTCisSameAs<1, 2>, 

 // Instruction list..
 
 // ADJCALLSTACKDOWN/UP implicitly use/def SP because they may be expanded into
 // a stack adjustment and the codegen must know that they may modify the stack
 // pointer before prolog-epilog rewriting occurs.
 // Pessimistically assume ADJCALLSTACKDOWN / ADJCALLSTACKUP will become
 // sub / add which can clobber SR.
 let Defs = [SP, SR], Uses = [SP] in {
-def ADJCALLSTACKDOWN : Pseudo<(outs), (ins i16imm:$amt),
+def ADJCALLSTACKDOWN : Pseudo<(outs), (ins i16imm:$amt1, i16imm:$amt2),
                               "#ADJCALLSTACKDOWN",
-                              [(MSP430callseq_start timm:$amt)]>;
+                              [(MSP430callseq_start timm:$amt1, timm:$amt2)]>;
 def ADJCALLSTACKUP   : Pseudo<(outs), (ins i16imm:$amt1, i16imm:$amt2),
                               "#ADJCALLSTACKUP",
                               [(MSP430callseq_end timm:$amt1, timm:$amt2)]>;
 }
 
 let usesCustomInserter = 1 in {
   def Select8  : Pseudo<(outs GR8:$dst), (ins GR8:$src, GR8:$src2, i8imm:$cc),
                         "# Select8 PSEUDO",

lib/Target/Mips/MipsFastISel.cpp

bool MipsFastISel::processCallArgs(CallLoweringInfo &CLI,
   CCState CCInfo(CC, false, *FuncInfo.MF, ArgLocs, *Context);
   CCInfo.AnalyzeCallOperands(OutVTs, CLI.OutFlags, CCAssignFnForCall(CC));
   // Get a count of how many bytes are to be pushed on the stack.
   NumBytes = CCInfo.getNextStackOffset();
   // This is the minimum argument area used for A0-A3.
   if (NumBytes < 16)
     NumBytes = 16;
 
-  emitInst(Mips::ADJCALLSTACKDOWN).addImm(16);
+  emitInst(Mips::ADJCALLSTACKDOWN).addImm(16).addImm(0);
   // Process the args.
   MVT firstMVT;
   for (unsigned i = 0, e = ArgLocs.size(); i != e; ++i) {
     CCValAssign &VA = ArgLocs[i];
     const Value *ArgVal = CLI.OutVals[VA.getValNo()];
     MVT ArgVT = OutVTs[VA.getValNo()];
 
     if (i == 0) {

lib/Target/Mips/MipsISelLowering.cpp

MipsTargetLowering::LowerCall(TargetLowering::CallLoweringInfo &CLI,
   // Chain is the output chain of the last Load/Store or CopyToReg node.
   // ByValChain is the output chain of the last Memcpy node created for copying
   // byval arguments to the stack.
   unsigned StackAlignment = TFL->getStackAlignment();
   NextStackOffset = alignTo(NextStackOffset, StackAlignment);
   SDValue NextStackOffsetVal = DAG.getIntPtrConstant(NextStackOffset, DL, true);
 
   if (!IsTailCall)
-    Chain = DAG.getCALLSEQ_START(Chain, NextStackOffsetVal, DL);
+    Chain = DAG.getCALLSEQ_START(Chain, NextStackOffset, 0, DL);
 
   SDValue StackPtr =
       DAG.getCopyFromReg(Chain, DL, ABI.IsN64() ? Mips::SP_64 : Mips::SP,
                          getPointerTy(DAG.getDataLayout()));
 
   std::deque< std::pair<unsigned, SDValue> > RegsToPass;
   SmallVector<SDValue, 8> MemOpChains;
 

lib/Target/Mips/MipsInstrInfo.td

 // Mips profiles and nodes
 //===----------------------------------------------------------------------===//
 
 def SDT_MipsJmpLink      : SDTypeProfile<0, 1, [SDTCisVT<0, iPTR>]>;
 def SDT_MipsCMov         : SDTypeProfile<1, 4, [SDTCisSameAs<0, 1>,
                                                 SDTCisSameAs<1, 2>,
                                                 SDTCisSameAs<3, 4>,
                                                 SDTCisInt<4>]>;
-def SDT_MipsCallSeqStart : SDCallSeqStart<[SDTCisVT<0, i32>]>;
+def SDT_MipsCallSeqStart : SDCallSeqStart<[SDTCisVT<0, i32>, SDTCisVT<1, i32>]>;
 def SDT_MipsCallSeqEnd   : SDCallSeqEnd<[SDTCisVT<0, i32>, SDTCisVT<1, i32>]>;
 def SDT_MFLOHI : SDTypeProfile<1, 1, [SDTCisInt<0>, SDTCisVT<1, untyped>]>;
 def SDT_MTLOHI : SDTypeProfile<1, 2, [SDTCisVT<0, untyped>,
                                       SDTCisInt<1>, SDTCisSameAs<1, 2>]>;
 def SDT_MipsMultDiv : SDTypeProfile<1, 2, [SDTCisVT<0, untyped>, SDTCisInt<1>,
                                     SDTCisSameAs<1, 2>]>;
 def SDT_MipsMAddMSub : SDTypeProfile<1, 3,
                                      [SDTCisVT<0, untyped>, SDTCisSameAs<0, 3>,
let isReturn=1, isTerminator=1, isBarrier=1, hasCtrlDep=1, isCTI=1 in {
   let hasDelaySlot=1 in
   def RetRA : PseudoSE<(outs), (ins), [(MipsRet)]>;
 
   let hasSideEffects=1 in
   def ERet : PseudoSE<(outs), (ins), [(MipsERet)]>;
 }
 
 let Defs = [SP], Uses = [SP], hasSideEffects = 1 in {
-def ADJCALLSTACKDOWN : MipsPseudo<(outs), (ins i32imm:$amt),
-                                  [(callseq_start timm:$amt)]>;
+def ADJCALLSTACKDOWN : MipsPseudo<(outs), (ins i32imm:$amt1, i32imm:$amt2),
+                                  [(callseq_start timm:$amt1, timm:$amt2)]>;
 def ADJCALLSTACKUP   : MipsPseudo<(outs), (ins i32imm:$amt1, i32imm:$amt2),
                                   [(callseq_end timm:$amt1, timm:$amt2)]>;
 }
 
 let usesCustomInserter = 1 in {
   def ATOMIC_LOAD_ADD_I8   : Atomic2Ops<atomic_load_add_8, GPR32>;
   def ATOMIC_LOAD_ADD_I16  : Atomic2Ops<atomic_load_add_16, GPR32>;
   def ATOMIC_LOAD_ADD_I32  : Atomic2Ops<atomic_load_add_32, GPR32>;

lib/Target/NVPTX/NVPTXISelLowering.cpp

SDValue NVPTXTargetLowering::LowerCall(TargetLowering::CallLoweringInfo &CLI,
   const DataLayout &DL = DAG.getDataLayout();
 
   bool isABI = (STI.getSmVersion() >= 20);
   assert(isABI && "Non-ABI compilation is not supported");
   if (!isABI)
     return Chain;
 
   SDValue tempChain = Chain;
-  Chain = DAG.getCALLSEQ_START(
-      Chain, DAG.getIntPtrConstant(uniqueCallSite, dl, true), dl);
+  Chain = DAG.getCALLSEQ_START(Chain, uniqueCallSite, 0, dl);
   SDValue InFlag = Chain.getValue(1);
 
   unsigned paramCount = 0;
   // Args.size() and Outs.size() need not match.
   // Outs.size() will be larger
   //   * if there is an aggregate argument with multiple fields (each field
   //     showing up separately in Outs)
   //   * if there is a vector argument with more than typical vector-length

lib/Target/NVPTX/NVPTXInstrInfo.td

 // conditional branch if the target block is the next block so that the code
 // can fall through to the target block.  The invertion is done by 'xor
 // condition, 1', which will be translated to (setne condition, -1).  Since ptx
 // supports '@!pred bra target', we should use it.
 def : Pat<(brcond (i1 (setne Int1Regs:$a, -1)), bb:$target),
           (CBranchOther Int1Regs:$a, bb:$target)>;
 
 // Call
-def SDT_NVPTXCallSeqStart : SDCallSeqStart<[SDTCisVT<0, i32>]>;
+def SDT_NVPTXCallSeqStart : SDCallSeqStart<[SDTCisVT<0, i32>,
+                                            SDTCisVT<1, i32>]>;
 def SDT_NVPTXCallSeqEnd   : SDCallSeqEnd<[SDTCisVT<0, i32>, SDTCisVT<1, i32>]>;
 
 def callseq_start : SDNode<"ISD::CALLSEQ_START", SDT_NVPTXCallSeqStart,
                            [SDNPHasChain, SDNPOutGlue, SDNPSideEffect]>;
 def callseq_end   : SDNode<"ISD::CALLSEQ_END", SDT_NVPTXCallSeqEnd,
                            [SDNPHasChain, SDNPOptInGlue, SDNPOutGlue,
                             SDNPSideEffect]>;
 
 def SDT_NVPTXCall : SDTypeProfile<0, 1, [SDTCisVT<0, i32>]>;
 def call          : SDNode<"NVPTXISD::CALL", SDT_NVPTXCall,
                            [SDNPHasChain, SDNPOptInGlue, SDNPOutGlue]>;
 def calltarget : Operand<i32>;
 let isCall=1 in {
    def CALL : NVPTXInst<(outs), (ins calltarget:$dst), "call \t$dst, (1);", []>;
 }
 
 def : Pat<(call tglobaladdr:$dst), (CALL tglobaladdr:$dst)>;
 def : Pat<(call texternalsym:$dst), (CALL texternalsym:$dst)>;
 
 // Pseudo instructions.
 class Pseudo<dag outs, dag ins, string asmstr, list<dag> pattern>
    : NVPTXInst<outs, ins, asmstr, pattern>;
 
 def Callseq_Start :
-  NVPTXInst<(outs), (ins i32imm:$amt),
-            "\\{ // callseq $amt\n"
+  NVPTXInst<(outs), (ins i32imm:$amt1, i32imm:$amt2),
+            "\\{ // callseq $amt1, $amt2\n"
             "\t.reg .b32 temp_param_reg;",
-           [(callseq_start timm:$amt)]>;
+           [(callseq_start timm:$amt1, timm:$amt2)]>;
 def Callseq_End :
   NVPTXInst<(outs), (ins i32imm:$amt1, i32imm:$amt2),
             "\\} // callseq $amt1",
             [(callseq_end timm:$amt1, timm:$amt2)]>;
 
 // trap instruction
 def trapinst : NVPTXInst<(outs), (ins), "trap;", [(trap)]>;
 

lib/Target/PowerPC/PPCFastISel.cpp

bool PPCFastISel::processCallArgs(SmallVectorImpl<Value*> &Args,
   // conservatively assume that it is needed.  As such, make sure we have at
   // least enough stack space for the caller to store the 8 GPRs.
   // FIXME: On ELFv2, it may be unnecessary to allocate the parameter area.
   NumBytes = std::max(NumBytes, LinkageSize + 64);
 
   // Issue CALLSEQ_START.
   BuildMI(*FuncInfo.MBB, FuncInfo.InsertPt, DbgLoc,
           TII.get(TII.getCallFrameSetupOpcode()))
-    .addImm(NumBytes);
+    .addImm(NumBytes).addImm(0);
 
   // Prepare to assign register arguments.  Every argument uses up a
   // GPR protocol register even if it's passed in a floating-point
   // register (unless we're using the fast calling convention).
   unsigned NextGPR = PPC::X3;
   unsigned NextFPR = PPC::F1;
 
   // Process arguments.

lib/Target/PowerPC/PPCISelLowering.cpp

#endif
   unsigned NumBytes = CCByValInfo.getNextStackOffset();
 
   // Calculate by how many bytes the stack has to be adjusted in case of tail
   // call optimization.
   int SPDiff = CalculateTailCallSPDiff(DAG, isTailCall, NumBytes);
 
   // Adjust the stack pointer for the new arguments...
   // These operations are automatically eliminated by the prolog/epilog pass
-  Chain = DAG.getCALLSEQ_START(Chain, DAG.getIntPtrConstant(NumBytes, dl, true),
-                               dl);
+  Chain = DAG.getCALLSEQ_START(Chain, NumBytes, 0, dl);
   SDValue CallSeqStart = Chain;
 
   // Load the return address and frame pointer so it can be moved somewhere else
   // later.
   SDValue LROp, FPOp;
   Chain = EmitTailCallLoadFPAndRetAddr(DAG, SPDiff, Chain, LROp, FPOp, dl);
 
   // Set up a copy of the stack pointer for use loading and storing any

 // call sequence for the call to which the argument belongs.
 SDValue PPCTargetLowering::createMemcpyOutsideCallSeq(
     SDValue Arg, SDValue PtrOff, SDValue CallSeqStart, ISD::ArgFlagsTy Flags,
     SelectionDAG &DAG, const SDLoc &dl) const {
   SDValue MemcpyCall = CreateCopyOfByValArgument(Arg, PtrOff,
                         CallSeqStart.getNode()->getOperand(0),
                         Flags, DAG, dl);
   // The MEMCPY must go outside the CALLSEQ_START..END.
-  SDValue NewCallSeqStart = DAG.getCALLSEQ_START(MemcpyCall,
-                             CallSeqStart.getNode()->getOperand(1),
+  int64_t FrameSize = cast<ConstantSDNode>(
+                          CallSeqStart.getNode()->getOperand(1))->getSExtValue();
+  SDValue NewCallSeqStart = DAG.getCALLSEQ_START(MemcpyCall, FrameSize, 0,
                                                  SDLoc(MemcpyCall));
   DAG.ReplaceAllUsesWith(CallSeqStart.getNode(),
                          NewCallSeqStart.getNode());
   return NewCallSeqStart;
 }
 
 SDValue PPCTargetLowering::LowerCall_64SVR4(
     SDValue Chain, SDValue Callee, CallingConv::ID CallConv, bool isVarArg,
     bool isTailCall, bool isPatchPoint,
SDValue PPCTargetLowering::LowerCall_64SVR4(
   // To protect arguments on the stack from being clobbered in a tail call,
   // force all the loads to happen before doing any other lowering.
   if (isTailCall)
     Chain = DAG.getStackArgumentTokenFactor(Chain);
 
   // Adjust the stack pointer for the new arguments...
   // These operations are automatically eliminated by the prolog/epilog pass
   if (!IsSibCall)
-    Chain = DAG.getCALLSEQ_START(Chain,
-                                 DAG.getIntPtrConstant(NumBytes, dl, true), dl);
+    Chain = DAG.getCALLSEQ_START(Chain, NumBytes, 0, dl);
   SDValue CallSeqStart = Chain;
 
   // Load the return address and frame pointer so it can be move somewhere else
   // later.
   SDValue LROp, FPOp;
   Chain = EmitTailCallLoadFPAndRetAddr(DAG, SPDiff, Chain, LROp, FPOp, dl);
 
   // Set up a copy of the stack pointer for use loading and storing any
SDValue PPCTargetLowering::LowerCall_Darwin(
 
   // To protect arguments on the stack from being clobbered in a tail call,
   // force all the loads to happen before doing any other lowering.
   if (isTailCall)
     Chain = DAG.getStackArgumentTokenFactor(Chain);
 
   // Adjust the stack pointer for the new arguments...
   // These operations are automatically eliminated by the prolog/epilog pass
-  Chain = DAG.getCALLSEQ_START(Chain, DAG.getIntPtrConstant(NumBytes, dl, true),
-                               dl);
+  Chain = DAG.getCALLSEQ_START(Chain, NumBytes, 0, dl);
   SDValue CallSeqStart = Chain;
 
   // Load the return address and frame pointer so it can be move somewhere else
   // later.
   SDValue LROp, FPOp;
   Chain = EmitTailCallLoadFPAndRetAddr(DAG, SPDiff, Chain, LROp, FPOp, dl);
 
   // Set up a copy of the stack pointer for use loading and storing any

lib/Target/PowerPC/PPCInstrInfo.td

 ]>;
 def SDT_PPCstxsix : SDTypeProfile<0, 3, [
   SDTCisVT<0, f64>, SDTCisPtrTy<1>, SDTCisPtrTy<2>
 ]>;
 def SDT_PPCVexts  : SDTypeProfile<1, 2, [
   SDTCisVT<0, f64>, SDTCisVT<1, f64>, SDTCisPtrTy<2>
 ]>;
 
-def SDT_PPCCallSeqStart : SDCallSeqStart<[ SDTCisVT<0, i32> ]>;
+def SDT_PPCCallSeqStart : SDCallSeqStart<[ SDTCisVT<0, i32>,
+                                           SDTCisVT<1, i32> ]>;
 def SDT_PPCCallSeqEnd   : SDCallSeqEnd<[ SDTCisVT<0, i32>,
                                          SDTCisVT<1, i32> ]>;
 def SDT_PPCvperm   : SDTypeProfile<1, 3, [
   SDTCisVT<3, v16i8>, SDTCisSameAs<0, 1>, SDTCisSameAs<0, 2>
 ]>;
 
 def SDT_PPCVecSplat : SDTypeProfile<1, 2, [ SDTCisVec<0>,
   SDTCisVec<1>, SDTCisInt<2>

 
 //===----------------------------------------------------------------------===//
 // PowerPC Instruction Definitions.
 
 // Pseudo-instructions:
 
 let hasCtrlDep = 1 in {
 let Defs = [R1], Uses = [R1] in {
-def ADJCALLSTACKDOWN : Pseudo<(outs), (ins u16imm:$amt), "#ADJCALLSTACKDOWN $amt",
-                              [(callseq_start timm:$amt)]>;
-def ADJCALLSTACKUP   : Pseudo<(outs), (ins u16imm:$amt1, u16imm:$amt2), "#ADJCALLSTACKUP $amt1 $amt2",
+def ADJCALLSTACKDOWN : Pseudo<(outs), (ins u16imm:$amt1, u16imm:$amt2),
+                              "#ADJCALLSTACKDOWN $amt1 $amt2",
+                              [(callseq_start timm:$amt1, timm:$amt2)]>;
+def ADJCALLSTACKUP   : Pseudo<(outs), (ins u16imm:$amt1, u16imm:$amt2),
+                              "#ADJCALLSTACKUP $amt1 $amt2",
                               [(callseq_end timm:$amt1, timm:$amt2)]>;
 }
 
 def UPDATE_VRSAVE    : Pseudo<(outs gprc:$rD), (ins gprc:$rS),
                               "UPDATE_VRSAVE $rD, $rS", []>;
 }
 
 let Defs = [R1], Uses = [R1] in

lib/Target/PowerPC/PPCTLSDynamicCall.cpp

bool processBlock(MachineBasicBlock &MBB) {
           Opc1 = PPC::ADDItlsldL32;
           Opc2 = PPC::GETtlsldADDR32;
           break;
         }
 
         // Don't really need to save data to the stack - the clobbered
         // registers are already saved when the SDNode (e.g. PPCaddiTlsgdLAddr)
         // gets translated to the pseudo instruction (e.g. ADDItlsgdLADDR).
-        BuildMI(MBB, I, DL, TII->get(PPC::ADJCALLSTACKDOWN)).addImm(0);
+        BuildMI(MBB, I, DL, TII->get(PPC::ADJCALLSTACKDOWN)).addImm(0)
+                                                            .addImm(0);
 
         // Expand into two ops built prior to the existing instruction.
         MachineInstr *Addi = BuildMI(MBB, I, DL, TII->get(Opc1), GPR3)
           .addReg(InReg);
         Addi->addOperand(MI.getOperand(2));
 
         // The ADDItls* instruction is the first instruction in the
         // repair range.

lib/Target/Sparc/SparcISelLowering.cpp

if (Size > 0U) {
       ByValArgs.push_back(FIPtr);
     }
     else {
       SDValue nullVal;
       ByValArgs.push_back(nullVal);
     }
   }
 
-  Chain = DAG.getCALLSEQ_START(Chain, DAG.getIntPtrConstant(ArgsSize, dl, true),
-                               dl);
+  Chain = DAG.getCALLSEQ_START(Chain, ArgsSize, 0, dl);
 
   SmallVector<std::pair<unsigned, SDValue>, 8> RegsToPass;
   SmallVector<SDValue, 8> MemOpChains;
 
   const unsigned StackOffset = 92;
   bool hasStructRetAttr = false;
   // Walk the register/memloc assignments, inserting copies/loads.
   for (unsigned i = 0, realArgIdx = 0, byvalArgIdx = 0, e = ArgLocs.size();
SparcTargetLowering::LowerCall_64(TargetLowering::CallLoweringInfo &CLI,
 
   // Varargs calls require special treatment.
   if (CLI.IsVarArg)
     fixupVariableFloatArgs(ArgLocs, CLI.Outs);
 
   // Adjust the stack pointer to make room for the arguments.
   // FIXME: Use hasReservedCallFrame to avoid %sp adjustments around all calls
   // with more than 6 arguments.
-  Chain = DAG.getCALLSEQ_START(Chain, DAG.getIntPtrConstant(ArgsSize, DL, true),
-                               DL);
+  Chain = DAG.getCALLSEQ_START(Chain, ArgsSize, 0, DL);
 
   // Collect the set of registers to pass to the function and their values.
   // This will be emitted as a sequence of CopyToReg nodes glued to the call
   // instruction.
   SmallVector<std::pair<unsigned, SDValue>, 8> RegsToPass;
 
   // Collect chains from all the memory opeations that copy arguments to the
   // stack. They must follow the stack pointer adjustment above and precede the
if (model == TLSModel::GeneralDynamic || model == TLSModel::LocalDynamic) {
     SDValue HiLo = makeHiLoPair(Op, HiTF, LoTF, DAG);
     SDValue Base = DAG.getNode(SPISD::GLOBAL_BASE_REG, DL, PtrVT);
     SDValue Argument = DAG.getNode(SPISD::TLS_ADD, DL, PtrVT, Base, HiLo,
                                withTargetFlags(Op, addTF, DAG));
 
     SDValue Chain = DAG.getEntryNode();
     SDValue InFlag;
 
-    Chain = DAG.getCALLSEQ_START(Chain, DAG.getIntPtrConstant(1, DL, true), DL);
+    Chain = DAG.getCALLSEQ_START(Chain, 1, 0, DL);
     Chain = DAG.getCopyToReg(Chain, DL, SP::O0, Argument, InFlag);
     InFlag = Chain.getValue(1);
     SDValue Callee = DAG.getTargetExternalSymbol("__tls_get_addr", PtrVT);
     SDValue Symbol = withTargetFlags(Op, callTF, DAG);
 
     SDVTList NodeTys = DAG.getVTList(MVT::Other, MVT::Glue);
     const uint32_t *Mask = Subtarget->getRegisterInfo()->getCallPreservedMask(
         DAG.getMachineFunction(), CallingConv::C);

lib/Target/Sparc/SparcInstrInfo.td

 def SPsjlj_setjmp: SDNode<"SPISD::EH_SJLJ_SETJMP",
                           SDTSPeh_sjlj_setjmp,
                           [SDNPHasChain, SDNPSideEffect]>;
 def SPsjlj_longjmp: SDNode<"SPISD::EH_SJLJ_LONGJMP",
                            SDTSPeh_sjlj_longjmp,
                            [SDNPHasChain, SDNPSideEffect]>;
 
 //  These are target-independent nodes, but have target-specific formats.
-def SDT_SPCallSeqStart : SDCallSeqStart<[ SDTCisVT<0, i32> ]>;
+def SDT_SPCallSeqStart : SDCallSeqStart<[ SDTCisVT<0, i32>,
+                                          SDTCisVT<1, i32> ]>;
 def SDT_SPCallSeqEnd   : SDCallSeqEnd<[ SDTCisVT<0, i32>,
                                         SDTCisVT<1, i32> ]>;
 
 def callseq_start : SDNode<"ISD::CALLSEQ_START", SDT_SPCallSeqStart,
                            [SDNPHasChain, SDNPOutGlue]>;
 def callseq_end   : SDNode<"ISD::CALLSEQ_END",   SDT_SPCallSeqEnd,
                            [SDNPHasChain, SDNPOptInGlue, SDNPOutGlue]>;
 

 }
 
 // GETPCX for PIC
 let Defs = [O7] in {
   def GETPCX : Pseudo<(outs getPCX:$getpcseq), (ins), "$getpcseq", [] >;
 }
 
 let Defs = [O6], Uses = [O6] in {
-def ADJCALLSTACKDOWN : Pseudo<(outs), (ins i32imm:$amt),
-                               "!ADJCALLSTACKDOWN $amt",
-                               [(callseq_start timm:$amt)]>;
+def ADJCALLSTACKDOWN : Pseudo<(outs), (ins i32imm:$amt1, i32imm:$amt2),
+                               "!ADJCALLSTACKDOWN $amt1, $amt2",
+                               [(callseq_start timm:$amt1, timm:$amt2)]>;
 def ADJCALLSTACKUP : Pseudo<(outs), (ins i32imm:$amt1, i32imm:$amt2),
                             "!ADJCALLSTACKUP $amt1",
                             [(callseq_end timm:$amt1, timm:$amt2)]>;
 }
 
 let hasSideEffects = 1, mayStore = 1 in {
   let rd = 0, rs1 = 0, rs2 = 0 in
     def FLUSHW : F3_1<0b10, 0b101011, (outs), (ins),

lib/Target/SystemZ/SystemZISelLowering.cpp

SystemZTargetLowering::LowerCall(CallLoweringInfo &CLI,
   if (IsTailCall && !canUseSiblingCall(ArgCCInfo, ArgLocs, Outs))
     IsTailCall = false;
 
   // Get a count of how many bytes are to be pushed on the stack.
   unsigned NumBytes = ArgCCInfo.getNextStackOffset();
 
   // Mark the start of the call.
   if (!IsTailCall)
-    Chain = DAG.getCALLSEQ_START(Chain,
-                                 DAG.getConstant(NumBytes, DL, PtrVT, true),
-                                 DL);
+    Chain = DAG.getCALLSEQ_START(Chain, NumBytes, 0, DL);
 
   // Copy argument values to their designated locations.
   SmallVector<std::pair<unsigned, SDValue>, 9> RegsToPass;
   SmallVector<SDValue, 8> MemOpChains;
   SDValue StackPtr;
   for (unsigned I = 0, E = ArgLocs.size(); I != E; ++I) {
     CCValAssign &VA = ArgLocs[I];
     SDValue ArgValue = OutVals[I];

lib/Target/SystemZ/SystemZInstrInfo.td

 //===-- SystemZInstrInfo.td - General SystemZ instructions ----*- tblgen-*-===//
 //
 //                     The LLVM Compiler Infrastructure
 //
 // This file is distributed under the University of Illinois Open Source
 // License. See LICENSE.TXT for details.
 //
 //===----------------------------------------------------------------------===//
 
 //===----------------------------------------------------------------------===//
 // Stack allocation
 //===----------------------------------------------------------------------===//
 
 let hasNoSchedulingInfo = 1 in {
-  def ADJCALLSTACKDOWN : Pseudo<(outs), (ins i64imm:$amt),
-                                [(callseq_start timm:$amt)]>;
+  def ADJCALLSTACKDOWN : Pseudo<(outs), (ins i64imm:$amt1, i64imm:$amt2),
+                                [(callseq_start timm:$amt1, timm:$amt2)]>;
   def ADJCALLSTACKUP   : Pseudo<(outs), (ins i64imm:$amt1, i64imm:$amt2),
                                 [(callseq_end timm:$amt1, timm:$amt2)]>;
 }
 
 let hasSideEffects = 0 in {
   // Takes as input the value of the stack pointer after a dynamic allocation
   // has been made.  Sets the output to the address of the dynamically-
   // allocated area itself, skipping the outgoing arguments.

lib/Target/SystemZ/SystemZOperators.td

 //===-- SystemZOperators.td - SystemZ-specific operators ------*- tblgen-*-===//
 //
 //                     The LLVM Compiler Infrastructure
 //
 // This file is distributed under the University of Illinois Open Source
 // License. See LICENSE.TXT for details.
 //
 //===----------------------------------------------------------------------===//
 
 //===----------------------------------------------------------------------===//
 // Type profiles
 //===----------------------------------------------------------------------===//
-def SDT_CallSeqStart        : SDCallSeqStart<[SDTCisVT<0, i64>]>;
+def SDT_CallSeqStart        : SDCallSeqStart<[SDTCisVT<0, i64>,
+                                              SDTCisVT<1, i64>]>;
 def SDT_CallSeqEnd          : SDCallSeqEnd<[SDTCisVT<0, i64>,
                                             SDTCisVT<1, i64>]>;
 def SDT_ZCall               : SDTypeProfile<0, -1, [SDTCisPtrTy<0>]>;
 def SDT_ZCmp                : SDTypeProfile<0, 2, [SDTCisSameAs<0, 1>]>;
 def SDT_ZICmp               : SDTypeProfile<0, 3,
                                             [SDTCisSameAs<0, 1>,
                                              SDTCisVT<2, i32>]>;
 def SDT_ZBRCCMask           : SDTypeProfile<0, 3,

lib/Target/WebAssembly/WebAssemblyInstrCall.td

 
 // TODO: addr64: These currently assume the callee address is 32-bit.
 
 let Defs = [ARGUMENTS] in {
 
 // Call sequence markers. These have an immediate which represents the amount of
 // stack space to allocate or free, which is used for varargs lowering.
 let Uses = [SP32, SP64], Defs = [SP32, SP64], isCodeGenOnly = 1 in {
-def ADJCALLSTACKDOWN : I<(outs), (ins i32imm:$amt),
-                         [(WebAssemblycallseq_start timm:$amt)]>;
+def ADJCALLSTACKDOWN : I<(outs), (ins i32imm:$amt, i32imm:$amt2),
+                         [(WebAssemblycallseq_start timm:$amt, timm:$amt2)]>;
 def ADJCALLSTACKUP : I<(outs), (ins i32imm:$amt, i32imm:$amt2),
                        [(WebAssemblycallseq_end timm:$amt, timm:$amt2)]>;
 } // isCodeGenOnly = 1
 
 multiclass CALL<WebAssemblyRegClass vt, string prefix> {
   def CALL_#vt : I<(outs vt:$dst), (ins function32_op:$callee, variable_ops),
                    [(set vt:$dst, (WebAssemblycall1 (i32 imm:$callee)))],
                    !strconcat(prefix, "call\t$dst, $callee"),

lib/Target/WebAssembly/WebAssemblyInstrInfo.td

 def HasAddr64 : Predicate<"Subtarget->hasAddr64()">;
 def HasSIMD128 : Predicate<"Subtarget->hasSIMD128()">,
                            AssemblerPredicate<"FeatureSIMD128", "simd128">;
 
 //===----------------------------------------------------------------------===//
 // WebAssembly-specific DAG Node Types.
 //===----------------------------------------------------------------------===//
 
-def SDT_WebAssemblyCallSeqStart : SDCallSeqStart<[SDTCisVT<0, iPTR>]>;
+def SDT_WebAssemblyCallSeqStart : SDCallSeqStart<[SDTCisVT<0, iPTR>,
+                                                  SDTCisVT<1, iPTR>]>;
 def SDT_WebAssemblyCallSeqEnd :
     SDCallSeqEnd<[SDTCisVT<0, iPTR>, SDTCisVT<1, iPTR>]>;
 def SDT_WebAssemblyCall0    : SDTypeProfile<0, -1, [SDTCisPtrTy<0>]>;
 def SDT_WebAssemblyCall1    : SDTypeProfile<1, -1, [SDTCisPtrTy<1>]>;
 def SDT_WebAssemblyBrTable  : SDTypeProfile<0, -1, [SDTCisPtrTy<0>]>;
 def SDT_WebAssemblyArgument : SDTypeProfile<1, 1, [SDTCisVT<1, i32>]>;
 def SDT_WebAssemblyReturn   : SDTypeProfile<0, -1, []>;
 def SDT_WebAssemblyWrapper  : SDTypeProfile<1, 1, [SDTCisSameAs<0, 1>,

lib/Target/X86/X86FastISel.cpp

bool X86FastISel::fastLowerCall(CallLoweringInfo &CLI) {
   CCInfo.AnalyzeCallOperands(OutVTs, OutFlags, CC_X86);
 
   // Get a count of how many bytes are to be pushed on the stack.
   unsigned NumBytes = CCInfo.getAlignedCallFrameSize();
 
   // Issue CALLSEQ_START
   unsigned AdjStackDown = TII.getCallFrameSetupOpcode();
   BuildMI(*FuncInfo.MBB, FuncInfo.InsertPt, DbgLoc, TII.get(AdjStackDown))
-    .addImm(NumBytes).addImm(0);
+    .addImm(NumBytes).addImm(0).addImm(0);
 
   // Walk the register/memloc assignments, inserting copies/loads.
   const X86RegisterInfo *RegInfo = Subtarget->getRegisterInfo();
   for (unsigned i = 0, e = ArgLocs.size(); i != e; ++i) {
     CCValAssign const &VA = ArgLocs[i];
     const Value *ArgVal = OutVals[VA.getValNo()];
     MVT ArgVT = OutVTs[VA.getValNo()];
 

lib/Target/X86/X86ISelLowering.cpp

if (!ArgLocs.back().isMemLoc())
       report_fatal_error("cannot use inalloca attribute on a register "
                          "parameter");
     if (ArgLocs.back().getLocMemOffset() != 0)
       report_fatal_error("any parameter with the inalloca attribute must be "
                          "the only memory argument");
   }
 
   if (!IsSibcall)
-    Chain = DAG.getCALLSEQ_START(
-        Chain, DAG.getIntPtrConstant(NumBytesToPush, dl, true), dl);
+    Chain = DAG.getCALLSEQ_START(Chain, NumBytesToPush,
+                                 NumBytes - NumBytesToPush, dl);
 
   SDValue RetAddrFrIdx;
   // Load return address for tail calls.
   if (isTailCall && FPDiff)
     Chain = EmitTailCallLoadRetAddr(DAG, RetAddrFrIdx, Chain, isTailCall,
                                     Is64Bit, FPDiff, dl);
 
   SmallVector<std::pair<unsigned, SDValue>, 8> RegsToPass;
if (PIC32)
       Offset = DAG.getNode(ISD::ADD, DL, PtrVT,
                            DAG.getNode(X86ISD::GlobalBaseReg, SDLoc(), PtrVT),
                            Offset);
 
     // Lowering the machine isd will make sure everything is in the right
     // location.
     SDValue Chain = DAG.getEntryNode();
     SDVTList NodeTys = DAG.getVTList(MVT::Other, MVT::Glue);
-    Chain = DAG.getCALLSEQ_START(Chain, DAG.getIntPtrConstant(0, DL, true), DL);
+    Chain = DAG.getCALLSEQ_START(Chain, 0, 0, DL);
     SDValue Args[] = { Chain, Offset };
     Chain = DAG.getNode(X86ISD::TLSCALL, DL, NodeTys, Args);
     Chain = DAG.getCALLSEQ_END(Chain, DAG.getIntPtrConstant(0, DL, true),
                                DAG.getIntPtrConstant(0, DL, true),
                                Chain.getValue(1), DL);
 
     // TLSCALL will be codegen'ed as call. Inform MFI that function has calls.
     MachineFrameInfo &MFI = DAG.getMachineFunction().getFrameInfo();
X86TargetLowering::LowerDYNAMIC_STACKALLOC(SDValue Op,
   SDNode *Node = Op.getNode();
   SDValue Chain = Op.getOperand(0);
   SDValue Size  = Op.getOperand(1);
   unsigned Align = cast<ConstantSDNode>(Op.getOperand(2))->getZExtValue();
   EVT VT = Node->getValueType(0);
 
   // Chain the dynamic stack allocation so that it doesn't modify the stack
   // pointer when other instructions are using the stack.
-  Chain = DAG.getCALLSEQ_START(Chain, DAG.getIntPtrConstant(0, dl, true), dl);
+  Chain = DAG.getCALLSEQ_START(Chain, 0, 0, dl);
 
   bool Is64Bit = Subtarget.is64Bit();
   MVT SPTy = getPointerTy(DAG.getDataLayout());
 
   SDValue Result;
   if (!Lower) {
     const TargetLowering &TLI = DAG.getTargetLoweringInfo();
     unsigned SPReg = TLI.getStackPointerRegisterToSaveRestore();
X86TargetLowering::EmitLoweredTLSAddr(MachineInstr &MI,
   // may push the prologue/epilogue pass them.
   const TargetInstrInfo &TII = *Subtarget.getInstrInfo();
   DebugLoc DL = MI.getDebugLoc();
   MachineFunction &MF = *BB->getParent();
 
   // Emit CALLSEQ_START right before the instruction.
   unsigned AdjStackDown = TII.getCallFrameSetupOpcode();
   MachineInstrBuilder CallseqStart =
-    BuildMI(MF, DL, TII.get(AdjStackDown)).addImm(0).addImm(0);
+    BuildMI(MF, DL, TII.get(AdjStackDown)).addImm(0).addImm(0).addImm(0);
   BB->insert(MachineBasicBlock::iterator(MI), CallseqStart);
 
   // Emit CALLSEQ_END right after the instruction.
   // We don't call erase from parent because we want to keep the
   // original instruction around.
   unsigned AdjStackUp = TII.getCallFrameDestroyOpcode();
   MachineInstrBuilder CallseqEnd =
     BuildMI(MF, DL, TII.get(AdjStackUp)).addImm(0).addImm(0);

lib/Target/X86/X86InstrCompiler.td

 
 
 // ADJCALLSTACKDOWN/UP implicitly use/def ESP because they may be expanded into
 // a stack adjustment and the codegen must know that they may modify the stack
 // pointer before prolog-epilog rewriting occurs.
 // Pessimistically assume ADJCALLSTACKDOWN / ADJCALLSTACKUP will become
 // sub / add which can clobber EFLAGS.
 let Defs = [ESP, EFLAGS], Uses = [ESP] in {
-def ADJCALLSTACKDOWN32 : I<0, Pseudo, (outs), (ins i32imm:$amt1, i32imm:$amt2),
+def ADJCALLSTACKDOWN32 : I<0, Pseudo, (outs),
+                           (ins i32imm:$amt1, i32imm:$amt2, i32imm:$amt3),
                            "#ADJCALLSTACKDOWN",
                            []>,
                           Requires<[NotLP64]>;
 def ADJCALLSTACKUP32   : I<0, Pseudo, (outs), (ins i32imm:$amt1, i32imm:$amt2),
                            "#ADJCALLSTACKUP",
                            [(X86callseq_end timm:$amt1, timm:$amt2)]>,
                           Requires<[NotLP64]>;
 }
-def : Pat<(X86callseq_start timm:$amt1),
-          (ADJCALLSTACKDOWN32 i32imm:$amt1, 0)>, Requires<[NotLP64]>;
+def : Pat<(X86callseq_start timm:$amt1, timm:$amt2),
+       (ADJCALLSTACKDOWN32 i32imm:$amt1, i32imm:$amt2, 0)>, Requires<[NotLP64]>;
 
 
 // ADJCALLSTACKDOWN/UP implicitly use/def RSP because they may be expanded into
 // a stack adjustment and the codegen must know that they may modify the stack
 // pointer before prolog-epilog rewriting occurs.
 // Pessimistically assume ADJCALLSTACKDOWN / ADJCALLSTACKUP will become
 // sub / add which can clobber EFLAGS.
 let Defs = [RSP, EFLAGS], Uses = [RSP] in {
-def ADJCALLSTACKDOWN64 : I<0, Pseudo, (outs), (ins i32imm:$amt1, i32imm:$amt2),
+def ADJCALLSTACKDOWN64 : I<0, Pseudo, (outs),
+                           (ins i32imm:$amt1, i32imm:$amt2, i32imm:$amt3),
                            "#ADJCALLSTACKDOWN",
                            []>,
                           Requires<[IsLP64]>;
 def ADJCALLSTACKUP64   : I<0, Pseudo, (outs), (ins i32imm:$amt1, i32imm:$amt2),
                            "#ADJCALLSTACKUP",
                            [(X86callseq_end timm:$amt1, timm:$amt2)]>,
                           Requires<[IsLP64]>;
 }
-def : Pat<(X86callseq_start timm:$amt1),
-          (ADJCALLSTACKDOWN64 i32imm:$amt1, 0)>, Requires<[IsLP64]>;
+def : Pat<(X86callseq_start timm:$amt1, timm:$amt2),
+        (ADJCALLSTACKDOWN64 i32imm:$amt1, i32imm:$amt2, 0)>, Requires<[IsLP64]>;
 
 
 // x86-64 va_start lowering magic.
 let usesCustomInserter = 1, Defs = [EFLAGS] in {
 def VASTART_SAVE_XMM_REGS : I<0, Pseudo,
                               (outs),
                               (ins GR8:$al,
                                    i64imm:$regsavefi, i64imm:$offset,

lib/Target/X86/X86InstrInfo.h

public:
   /// always be able to get register info as well (through this method).
   ///
   const X86RegisterInfo &getRegisterInfo() const { return RI; }
 
   /// Returns the stack pointer adjustment that happens inside the frame
   /// setup..destroy sequence (e.g. by pushes, or inside the callee).
   int64_t getFrameAdjustment(const MachineInstr &I) const {
     assert(isFrameInstr(I));
+    if (isFrameSetup(I))
+      return I.getOperand(2).getImm();
     return I.getOperand(1).getImm();
   }
 
   /// Sets the stack pointer adjustment made inside the frame made up by this
   /// instruction.
   void setFrameAdjustment(MachineInstr &I, int64_t V) const {
     assert(isFrameInstr(I));
+    if (isFrameSetup(I))
+      I.getOperand(2).setImm(V);
+    else
       I.getOperand(1).setImm(V);
   }
 
   /// getSPAdjust - This returns the stack pointer adjustment made by
   /// this instruction. For x86, we need to handle more complex call
   /// sequences involving PUSHes.
   int getSPAdjust(const MachineInstr &MI) const override;
 
   /// isCoalescableExtInstr - Return true if the instruction is a "coalescable"

lib/Target/X86/X86InstrInfo.td

def SDTX86caspairSaveRbx16 : SDTypeProfile<1, 3,
                                            SDTCisVT<2, i64>, SDTCisVT<3, i64>]>;
 
 def SDTLockBinaryArithWithFlags : SDTypeProfile<1, 2, [SDTCisVT<0, i32>,
                                                        SDTCisPtrTy<1>,
                                                        SDTCisInt<2>]>;
 
 def SDTX86Ret     : SDTypeProfile<0, -1, [SDTCisVT<0, i32>]>;
 
-def SDT_X86CallSeqStart : SDCallSeqStart<[SDTCisVT<0, i32>]>;
+def SDT_X86CallSeqStart : SDCallSeqStart<[SDTCisVT<0, i32>,
+                                          SDTCisVT<1, i32>]>;
 def SDT_X86CallSeqEnd   : SDCallSeqEnd<[SDTCisVT<0, i32>,
                                         SDTCisVT<1, i32>]>;
 
 def SDT_X86Call   : SDTypeProfile<0, -1, [SDTCisVT<0, iPTR>]>;
 
 def SDT_X86VASTART_SAVE_XMM_REGS : SDTypeProfile<0, -1, [SDTCisVT<0, i8>,
                                                          SDTCisVT<1, iPTR>,
                                                          SDTCisVT<2, iPTR>]>;

lib/Target/XCore/XCoreISelLowering.cpp

CCState RetCCInfo(CallConv, isVarArg, DAG.getMachineFunction(), RVLocs,
                     *DAG.getContext());
   RetCCInfo.AllocateStack(CCInfo.getNextStackOffset(), 4);
   RetCCInfo.AnalyzeCallResult(Ins, RetCC_XCore);
 
   // Get a count of how many bytes are to be pushed on the stack.
   unsigned NumBytes = RetCCInfo.getNextStackOffset();
   auto PtrVT = getPointerTy(DAG.getDataLayout());
 
-  Chain = DAG.getCALLSEQ_START(Chain,
-                               DAG.getConstant(NumBytes, dl, PtrVT, true), dl);
+  Chain = DAG.getCALLSEQ_START(Chain, NumBytes, 0, dl);
 
   SmallVector<std::pair<unsigned, SDValue>, 4> RegsToPass;
   SmallVector<SDValue, 12> MemOpChains;
 
   // Walk the register/memloc assignments, inserting copies/loads.
   for (unsigned i = 0, e = ArgLocs.size(); i != e; ++i) {
     CCValAssign &VA = ArgLocs[i];
     SDValue Arg = OutVals[i];

lib/Target/XCore/XCoreInstrInfo.td

 def XCoreStwsp        : SDNode<"XCoreISD::STWSP", SDT_XCoreStwsp,
                                [SDNPHasChain, SDNPMayStore]>;
 
 def SDT_XCoreLdwsp    : SDTypeProfile<1, 1, [SDTCisInt<1>]>;
 def XCoreLdwsp        : SDNode<"XCoreISD::LDWSP", SDT_XCoreLdwsp,
                                [SDNPHasChain, SDNPMayLoad]>;
 
 // These are target-independent nodes, but have target-specific formats.
-def SDT_XCoreCallSeqStart : SDCallSeqStart<[ SDTCisVT<0, i32> ]>;
+def SDT_XCoreCallSeqStart : SDCallSeqStart<[ SDTCisVT<0, i32>,
+                                             SDTCisVT<1, i32> ]>;
 def SDT_XCoreCallSeqEnd   : SDCallSeqEnd<[ SDTCisVT<0, i32>,
                                            SDTCisVT<1, i32> ]>;
 
 def callseq_start : SDNode<"ISD::CALLSEQ_START", SDT_XCoreCallSeqStart,
                            [SDNPHasChain, SDNPOutGlue]>;
 def callseq_end   : SDNode<"ISD::CALLSEQ_END",   SDT_XCoreCallSeqEnd,
                            [SDNPHasChain, SDNPOptInGlue, SDNPOutGlue]>;
 
 def SDT_XCoreMEMBARRIER : SDTypeProfile<0, 0, []>;
 

 
 // Two operand long
 
 //===----------------------------------------------------------------------===//
 // Pseudo Instructions
 //===----------------------------------------------------------------------===//
 
 let Defs = [SP], Uses = [SP] in {
-def ADJCALLSTACKDOWN : PseudoInstXCore<(outs), (ins i32imm:$amt),
-                               "# ADJCALLSTACKDOWN $amt",
-                               [(callseq_start timm:$amt)]>;
+def ADJCALLSTACKDOWN : PseudoInstXCore<(outs), (ins i32imm:$amt, i32imm:$amt2),
+                               "# ADJCALLSTACKDOWN $amt, $amt2",
+                               [(callseq_start timm:$amt, timm:$amt2)]>;
 def ADJCALLSTACKUP : PseudoInstXCore<(outs), (ins i32imm:$amt1, i32imm:$amt2),
                             "# ADJCALLSTACKUP $amt1",
                             [(callseq_end timm:$amt1, timm:$amt2)]>;
 }
 
 let isReMaterializable = 1 in
 def FRAME_TO_ARGS_OFFSET : PseudoInstXCore<(outs GRRegs:$dst), (ins),
                                "# FRAME_TO_ARGS_OFFSET $dst",

test/CodeGen/AArch64/GlobalISel/call-translator.ll

 ; RUN: llc -mtriple=aarch64-linux-gnu -O0 -stop-after=irtranslator -global-isel -verify-machineinstrs %s -o - 2>&1 | FileCheck %s
 
 ; CHECK-LABEL: name: test_trivial_call
-; CHECK: ADJCALLSTACKDOWN 0, implicit-def %sp, implicit %sp
+; CHECK: ADJCALLSTACKDOWN 0, 0, implicit-def %sp, implicit %sp
 ; CHECK: BL @trivial_callee, csr_aarch64_aapcs, implicit-def %lr
 ; CHECK: ADJCALLSTACKUP 0, 0, implicit-def %sp, implicit %sp
 declare void @trivial_callee()
 define void @test_trivial_call() {
   call void @trivial_callee()
   ret void
 }
 
define void @test_stack_slots([8 x i64], i64 %lhs, i64 %rhs, i64* %addr) {
   store i64 %sum, i64* %addr
   ret void
 }
 
 ; CHECK-LABEL: name: test_call_stack
 ; CHECK: [[C42:%[0-9]+]](s64) = G_CONSTANT i64 42
 ; CHECK: [[C12:%[0-9]+]](s64) = G_CONSTANT i64 12
 ; CHECK: [[PTR:%[0-9]+]](p0) = G_CONSTANT i64 0
-; CHECK: ADJCALLSTACKDOWN 24, implicit-def %sp, implicit %sp
+; CHECK: ADJCALLSTACKDOWN 24, 0, implicit-def %sp, implicit %sp
 ; CHECK: [[SP:%[0-9]+]](p0) = COPY %sp
 ; CHECK: [[C42_OFFS:%[0-9]+]](s64) = G_CONSTANT i64 0
 ; CHECK: [[C42_LOC:%[0-9]+]](p0) = G_GEP [[SP]], [[C42_OFFS]](s64)
 ; CHECK: G_STORE [[C42]](s64), [[C42_LOC]](p0) :: (store 8 into stack, align 0)
 ; CHECK: [[SP:%[0-9]+]](p0) = COPY %sp
 ; CHECK: [[C12_OFFS:%[0-9]+]](s64) = G_CONSTANT i64 8
 ; CHECK: [[C12_LOC:%[0-9]+]](p0) = G_GEP [[SP]], [[C12_OFFS]](s64)
 ; CHECK: G_STORE [[C12]](s64), [[C12_LOC]](p0) :: (store 8 into stack + 8, align 0)

test/CodeGen/AArch64/stackmap-frame-setup.ll

 ; RUN: llc -o - -verify-machineinstrs -mtriple=aarch64-apple-darwin -stop-after machine-sink %s | FileCheck %s --check-prefix=ISEL
 ; RUN: llc -o - -verify-machineinstrs -mtriple=aarch64-apple-darwin -fast-isel -fast-isel-abort=1 -stop-after machine-sink %s | FileCheck %s --check-prefix=FAST-ISEL
 
 define void @caller_meta_leaf() {
 entry:
   %metadata = alloca i64, i32 3, align 8
   store i64 11, i64* %metadata
   store i64 12, i64* %metadata
   store i64 13, i64* %metadata
-; ISEL:      ADJCALLSTACKDOWN 0, implicit-def
+; ISEL:      ADJCALLSTACKDOWN 0, 0, implicit-def
 ; ISEL-NEXT: STACKMAP
 ; ISEL-NEXT: ADJCALLSTACKUP 0, 0, implicit-def
   call void (i64, i32, ...) @llvm.experimental.stackmap(i64 4, i32 0, i64* %metadata)
-; FAST-ISEL:      ADJCALLSTACKDOWN 0, implicit-def
+; FAST-ISEL:      ADJCALLSTACKDOWN 0, 0, implicit-def
 ; FAST-ISEL-NEXT: STACKMAP
 ; FAST-ISEL-NEXT: ADJCALLSTACKUP 0, 0, implicit-def
   ret void
 }
 
 declare void @llvm.experimental.stackmap(i64, i32, ...)

test/CodeGen/Hexagon/regalloc-bad-undef.mir

bb.0.entry:
     ; CHECK: %d2 = S2_extractup undef %d0, 6, 25
     ; CHECK: %d0 = A2_tfrpi 2
     ; CHECK: %d13 = A2_tfrpi -1
     ; CHECK-NOT: undef %r4
 
   bb.1.for.body:
     successors: %bb.3.for.end, %bb.2.if.end82
 
-    ADJCALLSTACKDOWN 0, implicit-def dead %r29, implicit-def dead %r30, implicit %r31, implicit %r30, implicit %r29
+    ADJCALLSTACKDOWN 0, 0, implicit-def dead %r29, implicit-def dead %r30, implicit %r31, implicit %r30, implicit %r29
     J2_call @lrand48, implicit-def dead %d0, implicit-def dead %d1, implicit-def dead %d2, implicit-def dead %d3, implicit-def dead %d4, implicit-def dead %d5, implicit-def dead %d6, implicit-def dead %d7, implicit-def dead %r28, implicit-def dead %r31, implicit-def dead %p0, implicit-def dead %p1, implicit-def dead %p2, implicit-def dead %p3, implicit-def dead %m0, implicit-def dead %m1, implicit-def dead %lc0, implicit-def dead %lc1, implicit-def dead %sa0, implicit-def dead %sa1, implicit-def dead %usr, implicit-def %usr_ovf, implicit-def dead %cs0, implicit-def dead %cs1, implicit-def dead %w0, implicit-def dead %w1, implicit-def dead %w2, implicit-def dead %w3, implicit-def dead %w4, implicit-def dead %w5, implicit-def dead %w6, implicit-def dead %w7, implicit-def dead %w8, implicit-def dead %w9, implicit-def dead %w10, implicit-def dead %w11, implicit-def dead %w12, implicit-def dead %w13, implicit-def dead %w14, implicit-def dead %w15, implicit-def dead %q0, implicit-def dead %q1, implicit-def dead %q2, implicit-def dead %q3, implicit-def %r0
     ADJCALLSTACKUP 0, 0, implicit-def dead %r29, implicit-def dead %r30, implicit-def dead %r31, implicit %r29
     undef %29.isub_lo = COPY killed %r0
     %29.isub_hi = S2_asr_i_r %29.isub_lo, 31
-    ADJCALLSTACKDOWN 0, implicit-def dead %r29, implicit-def dead %r30, implicit %r31, implicit %r30, implicit %r29
+    ADJCALLSTACKDOWN 0, 0, implicit-def dead %r29, implicit-def dead %r30, implicit %r31, implicit %r30, implicit %r29
     J2_call @lrand48, implicit-def dead %d0, implicit-def dead %d1, implicit-def dead %d2, implicit-def dead %d3, implicit-def dead %d4, implicit-def dead %d5, implicit-def dead %d6, implicit-def dead %d7, implicit-def dead %r28, implicit-def dead %r31, implicit-def dead %p0, implicit-def dead %p1, implicit-def dead %p2, implicit-def dead %p3, implicit-def dead %m0, implicit-def dead %m1, implicit-def dead %lc0, implicit-def dead %lc1, implicit-def dead %sa0, implicit-def dead %sa1, implicit-def dead %usr, implicit-def %usr_ovf, implicit-def dead %cs0, implicit-def dead %cs1, implicit-def dead %w0, implicit-def dead %w1, implicit-def dead %w2, implicit-def dead %w3, implicit-def dead %w4, implicit-def dead %w5, implicit-def dead %w6, implicit-def dead %w7, implicit-def dead %w8, implicit-def dead %w9, implicit-def dead %w10, implicit-def dead %w11, implicit-def dead %w12, implicit-def dead %w13, implicit-def dead %w14, implicit-def dead %w15, implicit-def dead %q0, implicit-def dead %q1, implicit-def dead %q2, implicit-def dead %q3, implicit-def %r0
     ADJCALLSTACKUP 0, 0, implicit-def dead %r29, implicit-def dead %r30, implicit-def dead %r31, implicit %r29
     %32.isub_lo = COPY killed %r0
     %7 = S2_extractup %32, 22, 9
-    ADJCALLSTACKDOWN 0, implicit-def dead %r29, implicit-def dead %r30, implicit %r31, implicit %r30, implicit %r29
+    ADJCALLSTACKDOWN 0, 0, implicit-def dead %r29, implicit-def dead %r30, implicit %r31, implicit %r30, implicit %r29
     J2_call @lrand48, implicit-def dead %d0, implicit-def dead %d1, implicit-def dead %d2, implicit-def dead %d3, implicit-def dead %d4, implicit-def dead %d5, implicit-def dead %d6, implicit-def dead %d7, implicit-def dead %r28, implicit-def dead %r31, implicit-def dead %p0, implicit-def dead %p1, implicit-def dead %p2, implicit-def dead %p3, implicit-def dead %m0, implicit-def dead %m1, implicit-def dead %lc0, implicit-def dead %lc1, implicit-def dead %sa0, implicit-def dead %sa1, implicit-def dead %usr, implicit-def %usr_ovf, implicit-def dead %cs0, implicit-def dead %cs1, implicit-def dead %w0, implicit-def dead %w1, implicit-def dead %w2, implicit-def dead %w3, implicit-def dead %w4, implicit-def dead %w5, implicit-def dead %w6, implicit-def dead %w7, implicit-def dead %w8, implicit-def dead %w9, implicit-def dead %w10, implicit-def dead %w11, implicit-def dead %w12, implicit-def dead %w13, implicit-def dead %w14, implicit-def dead %w15, implicit-def dead %q0, implicit-def dead %q1, implicit-def dead %q2, implicit-def dead %q3, implicit-def %r0
     ADJCALLSTACKUP 0, 0, implicit-def dead %r29, implicit-def dead %r30, implicit-def dead %r31, implicit %r29
     undef %43.isub_lo = COPY killed %r0
     %43.isub_hi = COPY %32.isub_hi
     %16 = S2_extractup %43, 6, 25
     %18 = A2_tfrpi -1
     %18 = S2_asl_r_p_acc %18, %47, %16.isub_lo
-    ADJCALLSTACKDOWN 0, implicit-def dead %r29, implicit-def dead %r30, implicit %r31, implicit %r30, implicit %r29
+    ADJCALLSTACKDOWN 0, 0, implicit-def dead %r29, implicit-def dead %r30, implicit %r31, implicit %r30, implicit %r29
     J2_call @lrand48, implicit-def dead %d0, implicit-def dead %d1, implicit-def dead %d2, implicit-def dead %d3, implicit-def dead %d4, implicit-def dead %d5, implicit-def dead %d6, implicit-def dead %d7, implicit-def dead %r28, implicit-def dead %r31, implicit-def dead %p0, implicit-def dead %p1, implicit-def dead %p2, implicit-def dead %p3, implicit-def dead %m0, implicit-def dead %m1, implicit-def dead %lc0, implicit-def dead %lc1, implicit-def dead %sa0, implicit-def dead %sa1, implicit-def dead %usr, implicit-def %usr_ovf, implicit-def dead %cs0, implicit-def dead %cs1, implicit-def dead %w0, implicit-def dead %w1, implicit-def dead %w2, implicit-def dead %w3, implicit-def dead %w4, implicit-def dead %w5, implicit-def dead %w6, implicit-def dead %w7, implicit-def dead %w8, implicit-def dead %w9, implicit-def dead %w10, implicit-def dead %w11, implicit-def dead %w12, implicit-def dead %w13, implicit-def dead %w14, implicit-def dead %w15, implicit-def dead %q0, implicit-def dead %q1, implicit-def dead %q2, implicit-def dead %q3
     ADJCALLSTACKUP 0, 0, implicit-def dead %r29, implicit-def dead %r30, implicit-def dead %r31, implicit %r29
     %22 = S2_asl_r_p %18, %8.isub_lo
     %21 = COPY %13
     %21 = S2_lsr_i_p_and %21, %29, 9
     %22 = S2_asl_i_p_and %22, %7, 42
     S2_storerd_io undef %23, 0, %22 :: (store 8 into `i64* undef`)
     %25 = C2_cmpeqp %21, %51

test/CodeGen/Lanai/peephole-compare.mir

bb.0.entry:
     %0 = SUB_R killed %6, killed %3, 0
     SFSUB_F_RI_LO %0, 0, implicit-def %sr
     BRCC %bb.3.if.end, 10, implicit %sr
     BT %bb.1.if.then
   
   bb.1.if.then:
     successors: %bb.2.while.body
   
-    ADJCALLSTACKDOWN 0, implicit-def dead %sp, implicit %sp
+    ADJCALLSTACKDOWN 0, 0, implicit-def dead %sp, implicit %sp
     CALL @g, csr, implicit-def dead %rca, implicit %sp, implicit-def %sp, implicit-def %rv
     ADJCALLSTACKUP 0, 0, implicit-def dead %sp, implicit %sp
   
   bb.2.while.body:
     successors: %bb.2.while.body
   
     BT %bb.2.while.body
   
   bb.3.if.end:
     successors: %bb.4.if.then4, %bb.6.if.end7
     liveins: %sr
   
     BRCC %bb.6.if.end7, 14, implicit %sr
     BT %bb.4.if.then4
   
   bb.4.if.then4:
     successors: %bb.5.while.body6
   
-    ADJCALLSTACKDOWN 0, implicit-def dead %sp, implicit %sp
+    ADJCALLSTACKDOWN 0, 0, implicit-def dead %sp, implicit %sp
     CALL @g, csr, implicit-def dead %rca, implicit %sp, implicit-def %sp, implicit-def %rv
     ADJCALLSTACKUP 0, 0, implicit-def dead %sp, implicit %sp
   
   bb.5.while.body6:
     successors: %bb.5.while.body6
   
     BT %bb.5.while.body6
   
   bb.6.if.end7:
     RET implicit %rca
 
 ...

test/CodeGen/MIR/X86/frame-info-save-restore-points.mir

bb.1:
 
     JMP_1 %bb.3.false
 
   bb.2.true:
     successors: %bb.3.false
     liveins: %eax
 
     MOV32mr %stack.0.tmp, 1, _, 0, _, killed %eax
-    ADJCALLSTACKDOWN64 0, 0, implicit-def %rsp, implicit-def dead %eflags, implicit %rsp
+    ADJCALLSTACKDOWN64 0, 0, 0, implicit-def %rsp, implicit-def dead %eflags, implicit %rsp
     %rsi = LEA64r %stack.0.tmp, 1, _, 0, _
     %edi = MOV32r0 implicit-def dead %eflags
     CALL64pcrel32 @doSomething, csr_64, implicit %rsp, implicit %edi, implicit %rsi, implicit-def %rsp, implicit-def %eax
     ADJCALLSTACKUP64 0, 0, implicit-def %rsp, implicit-def dead %eflags, implicit %rsp
 
   bb.3.false:
     liveins: %eax
 
     RETQ %eax
 ...

test/CodeGen/PowerPC/stackmap-frame-setup.ll

 ; RUN: llc -o - -verify-machineinstrs -mtriple=powerpc64-unknown-gnu-linux -stop-after machine-sink %s | FileCheck %s --check-prefix=ISEL
 ; RUN: llc -o - -verify-machineinstrs -mtriple=powerpc64-unknown-gnu-linux -fast-isel -fast-isel-abort=1 -stop-after machine-sink %s | FileCheck %s --check-prefix=FAST-ISEL
 
 define void @caller_meta_leaf() {
 entry:
   %metadata = alloca i64, i32 3, align 8
   store i64 11, i64* %metadata
   store i64 12, i64* %metadata
   store i64 13, i64* %metadata
-; ISEL:      ADJCALLSTACKDOWN 0, implicit-def
+; ISEL:      ADJCALLSTACKDOWN 0, 0, implicit-def
 ; ISEL-NEXT: STACKMAP
 ; ISEL-NEXT: ADJCALLSTACKUP 0, 0, implicit-def
   call void (i64, i32, ...) @llvm.experimental.stackmap(i64 4, i32 0, i64* %metadata)
-; FAST-ISEL:      ADJCALLSTACKDOWN 0, implicit-def
+; FAST-ISEL:      ADJCALLSTACKDOWN 0, 0, implicit-def
 ; FAST-ISEL-NEXT: STACKMAP
 ; FAST-ISEL-NEXT: ADJCALLSTACKUP 0, 0, implicit-def
   ret void
 }
 
 declare void @llvm.experimental.stackmap(i64, i32, ...)

test/CodeGen/X86/stackmap-frame-setup.ll

 ; RUN: llc -o - -verify-machineinstrs -mtriple=x86_64-apple-darwin -mcpu=corei7 -stop-after machine-sink %s | FileCheck %s --check-prefix=ISEL
 ; RUN: llc -o - -verify-machineinstrs -mtriple=x86_64-apple-darwin -mcpu=corei7 -fast-isel -fast-isel-abort=1 -stop-after machine-sink %s | FileCheck %s --check-prefix=FAST-ISEL
 
 define void @caller_meta_leaf() {
 entry:
   %metadata = alloca i64, i32 3, align 8
   store i64 11, i64* %metadata
   store i64 12, i64* %metadata
   store i64 13, i64* %metadata
-; ISEL:      ADJCALLSTACKDOWN64 0, 0, implicit-def
+; ISEL:      ADJCALLSTACKDOWN64 0, 0, 0, implicit-def
 ; ISEL-NEXT: STACKMAP
 ; ISEL-NEXT: ADJCALLSTACKUP64 0, 0, implicit-def
   call void (i64, i32, ...) @llvm.experimental.stackmap(i64 4, i32 0, i64* %metadata)
-; FAST-ISEL:      ADJCALLSTACKDOWN64 0, 0, implicit-def
+; FAST-ISEL:      ADJCALLSTACKDOWN64 0, 0, 0, implicit-def
 ; FAST-ISEL-NEXT: STACKMAP
 ; FAST-ISEL-NEXT: ADJCALLSTACKUP64 0, 0, implicit-def
   ret void
 }
 
 declare void @llvm.experimental.stackmap(i64, i32, ...)