AMDGPU/R600: Delete dead code.

Dead or the same as the base implementation.

llvm-svn: 275616

diff --git a/llvm/lib/Target/AMDGPU/R600InstrInfo.cpp b/llvm/lib/Target/AMDGPU/R600InstrInfo.cpp
index 8e4553d..1c5f7ec 100644 (file)
--- a/llvm/lib/Target/AMDGPU/R600InstrInfo.cpp
+++ b/llvm/lib/Target/AMDGPU/R600InstrInfo.cpp
@@ -31,10 +31,6 @@ using namespace llvm;
 R600InstrInfo::R600InstrInfo(const R600Subtarget &ST)
   : AMDGPUInstrInfo(ST), RI(), ST(ST) {}
 
-bool R600InstrInfo::isTrig(const MachineInstr &MI) const {
-  return get(MI.getOpcode()).TSFlags & R600_InstFlag::TRIG;
-}
-
 bool R600InstrInfo::isVector(const MachineInstr &MI) const {
   return get(MI.getOpcode()).TSFlags & R600_InstFlag::VECTOR;
 }
@@ -96,17 +92,6 @@ bool R600InstrInfo::isMov(unsigned Opcode) const {
   }
 }
 
-// Some instructions act as place holders to emulate operations that the GPU
-// hardware does automatically. This function can be used to check if
-// an opcode falls into this category.
-bool R600InstrInfo::isPlaceHolderOpcode(unsigned Opcode) const {
-  switch (Opcode) {
-  default: return false;
-  case AMDGPU::RETURN:
-    return true;
-  }
-}
-
 bool R600InstrInfo::isReductionOp(unsigned Opcode) const {
   return false;
 }
@@ -144,10 +129,6 @@ bool R600InstrInfo::isLDSInstr(unsigned Opcode) const {
           (TargetFlags & R600_InstFlag::LDS_1A2D));
 }
 
-bool R600InstrInfo::isLDSNoRetInstr(unsigned Opcode) const {
-  return isLDSInstr(Opcode) && getOperandIdx(Opcode, AMDGPU::OpName::dst) == -1;
-}
-
 bool R600InstrInfo::isLDSRetInstr(unsigned Opcode) const {
   return isLDSInstr(Opcode) && getOperandIdx(Opcode, AMDGPU::OpName::dst) != -1;
 }
@@ -248,17 +229,6 @@ bool R600InstrInfo::readsLDSSrcReg(const MachineInstr &MI) const {
   return false;
 }
 
-int R600InstrInfo::getSrcIdx(unsigned Opcode, unsigned SrcNum) const {
-  static const unsigned OpTable[] = {
-    AMDGPU::OpName::src0,
-    AMDGPU::OpName::src1,
-    AMDGPU::OpName::src2
-  };
-
-  assert (SrcNum < 3);
-  return getOperandIdx(Opcode, OpTable[SrcNum]);
-}
-
 int R600InstrInfo::getSelIdx(unsigned Opcode, unsigned SrcIdx) const {
   static const unsigned SrcSelTable[][2] = {
     {AMDGPU::OpName::src0, AMDGPU::OpName::src0_sel},
@@ -407,8 +377,7 @@ Swizzle(std::vector<std::pair<int, unsigned> > Src,
   return Src;
 }
 
-static unsigned
-getTransSwizzle(R600InstrInfo::BankSwizzle Swz, unsigned Op) {
+static unsigned getTransSwizzle(R600InstrInfo::BankSwizzle Swz, unsigned Op) {
   switch (Swz) {
   case R600InstrInfo::ALU_VEC_012_SCL_210: {
     unsigned Cycles[3] = { 2, 1, 0};
@@ -428,7 +397,6 @@ getTransSwizzle(R600InstrInfo::BankSwizzle Swz, unsigned Op) {
   }
   default:
     llvm_unreachable("Wrong Swizzle for Trans Slot");
-    return 0;
   }
 }
 
@@ -981,12 +949,6 @@ bool R600InstrInfo::DefinesPredicate(MachineInstr &MI,
 }
 
 
-bool
-R600InstrInfo::SubsumesPredicate(ArrayRef<MachineOperand> Pred1,
-                                 ArrayRef<MachineOperand> Pred2) const {
-  return false;
-}
-
 bool R600InstrInfo::PredicateInstruction(MachineInstr &MI,
                                          ArrayRef<MachineOperand> Pred) const {
   int PIdx = MI.findFirstPredOperandIdx();
@@ -1420,10 +1382,6 @@ void R600InstrInfo::setImmOperand(MachineInstr &MI, unsigned Op,
 // Instruction flag getters/setters
 //===----------------------------------------------------------------------===//
 
-bool R600InstrInfo::hasFlagOperand(const MachineInstr &MI) const {
-  return GET_FLAG_OPERAND_IDX(get(MI.getOpcode()).TSFlags) != 0;
-}
-
 MachineOperand &R600InstrInfo::getFlagOp(MachineInstr &MI, unsigned SrcIdx,
                                          unsigned Flag) const {
   unsigned TargetFlags = get(MI.getOpcode()).TSFlags;

diff --git a/llvm/lib/Target/AMDGPU/R600InstrInfo.h b/llvm/lib/Target/AMDGPU/R600InstrInfo.h
index a9d5837..feaca98 100644 (file)
--- a/llvm/lib/Target/AMDGPU/R600InstrInfo.h
+++ b/llvm/lib/Target/AMDGPU/R600InstrInfo.h
@@ -68,8 +68,6 @@ public:
   bool isLegalToSplitMBBAt(MachineBasicBlock &MBB,
                            MachineBasicBlock::iterator MBBI) const override;
 
-  bool isTrig(const MachineInstr &MI) const;
-  bool isPlaceHolderOpcode(unsigned opcode) const;
   bool isReductionOp(unsigned opcode) const;
   bool isCubeOp(unsigned opcode) const;
 
@@ -77,7 +75,6 @@ public:
   bool isALUInstr(unsigned Opcode) const;
   bool hasInstrModifiers(unsigned Opcode) const;
   bool isLDSInstr(unsigned Opcode) const;
-  bool isLDSNoRetInstr(unsigned Opcode) const;
   bool isLDSRetInstr(unsigned Opcode) const;
 
   /// \returns true if this \p Opcode represents an ALU instruction or an
@@ -100,9 +97,6 @@ public:
   bool definesAddressRegister(MachineInstr &MI) const;
   bool readsLDSSrcReg(const MachineInstr &MI) const;
 
-  /// \returns The operand index for the given source number.  Legal values
-  /// for SrcNum are 0, 1, and 2.
-  int getSrcIdx(unsigned Opcode, unsigned SrcNum) const;
   /// \returns The operand Index for the Sel operand given an index to one
   /// of the instruction's src operands.
   int getSelIdx(unsigned Opcode, unsigned SrcIdx) const;
@@ -191,9 +185,6 @@ public:
   bool DefinesPredicate(MachineInstr &MI,
                         std::vector<MachineOperand> &Pred) const override;
 
-  bool SubsumesPredicate(ArrayRef<MachineOperand> Pred1,
-                         ArrayRef<MachineOperand> Pred2) const override;
-
   bool isProfitableToUnpredicate(MachineBasicBlock &TMBB,
                                  MachineBasicBlock &FMBB) const override;
 
@@ -206,9 +197,6 @@ public:
                                const MachineInstr &MI,
                                unsigned *PredCost = nullptr) const override;
 
-  int getInstrLatency(const InstrItineraryData *ItinData,
-                      SDNode *Node) const override { return 1;}
-
   bool expandPostRAPseudo(MachineInstr &MI) const override;
 
   /// \brief Reserve the registers that may be accesed using indirect addressing.
@@ -296,9 +284,6 @@ public:
   /// \brief Helper function for setting instruction flag values.
   void setImmOperand(MachineInstr &MI, unsigned Op, int64_t Imm) const;
 
-  /// \returns true if this instruction has an operand for storing target flags.
-  bool hasFlagOperand(const MachineInstr &MI) const;
-
   ///\brief Add one of the MO_FLAG* flags to the specified \p Operand.
   void addFlag(MachineInstr &MI, unsigned Operand, unsigned Flag) const;