diff options
Diffstat (limited to 'src/gallium/drivers/radeon/AMDILISelDAGToDAG.cpp')
| -rw-r--r-- | src/gallium/drivers/radeon/AMDILISelDAGToDAG.cpp | 395 |
1 files changed, 0 insertions, 395 deletions
diff --git a/src/gallium/drivers/radeon/AMDILISelDAGToDAG.cpp b/src/gallium/drivers/radeon/AMDILISelDAGToDAG.cpp deleted file mode 100644 index 807113134d2..00000000000 --- a/src/gallium/drivers/radeon/AMDILISelDAGToDAG.cpp +++ /dev/null @@ -1,395 +0,0 @@ -//===-- AMDILISelDAGToDAG.cpp - A dag to dag inst selector for AMDIL ------===// -// -// The LLVM Compiler Infrastructure -// -// This file is distributed under the University of Illinois Open Source -// License. See LICENSE.TXT for details. -// -//==-----------------------------------------------------------------------===// -// -// This file defines an instruction selector for the AMDIL target. -// -//===----------------------------------------------------------------------===// -#include "AMDGPUInstrInfo.h" -#include "AMDGPUISelLowering.h" // For AMDGPUISD -#include "AMDGPURegisterInfo.h" -#include "AMDILDevices.h" -#include "AMDILUtilityFunctions.h" -#include "llvm/ADT/ValueMap.h" -#include "llvm/CodeGen/PseudoSourceValue.h" -#include "llvm/CodeGen/SelectionDAGISel.h" -#include "llvm/Support/Compiler.h" -#include <list> -#include <queue> - -using namespace llvm; - -//===----------------------------------------------------------------------===// -// Instruction Selector Implementation -//===----------------------------------------------------------------------===// - -//===----------------------------------------------------------------------===// -// AMDGPUDAGToDAGISel - AMDGPU specific code to select AMDGPU machine instructions -// //for SelectionDAG operations. -// -namespace { -class AMDGPUDAGToDAGISel : public SelectionDAGISel { - // Subtarget - Keep a pointer to the AMDGPU Subtarget around so that we can - // make the right decision when generating code for different targets. - const AMDGPUSubtarget &Subtarget; -public: - AMDGPUDAGToDAGISel(TargetMachine &TM); - virtual ~AMDGPUDAGToDAGISel(); - - SDNode *Select(SDNode *N); - virtual const char *getPassName() const; - -private: - inline SDValue getSmallIPtrImm(unsigned Imm); - - // Complex pattern selectors - bool SelectADDRParam(SDValue Addr, SDValue& R1, SDValue& R2); - bool SelectADDR(SDValue N, SDValue &R1, SDValue &R2); - bool SelectADDR64(SDValue N, SDValue &R1, SDValue &R2); - - static bool checkType(const Value *ptr, unsigned int addrspace); - static const Value *getBasePointerValue(const Value *V); - - static bool isGlobalStore(const StoreSDNode *N); - static bool isPrivateStore(const StoreSDNode *N); - static bool isLocalStore(const StoreSDNode *N); - static bool isRegionStore(const StoreSDNode *N); - - static bool isCPLoad(const LoadSDNode *N); - static bool isConstantLoad(const LoadSDNode *N, int cbID); - static bool isGlobalLoad(const LoadSDNode *N); - static bool isPrivateLoad(const LoadSDNode *N); - static bool isLocalLoad(const LoadSDNode *N); - static bool isRegionLoad(const LoadSDNode *N); - - bool SelectADDR8BitOffset(SDValue Addr, SDValue& Base, SDValue& Offset); - bool SelectADDRReg(SDValue Addr, SDValue& Base, SDValue& Offset); - bool SelectADDRVTX_READ(SDValue Addr, SDValue &Base, SDValue &Offset); - - // Include the pieces autogenerated from the target description. -#include "AMDGPUGenDAGISel.inc" -}; -} // end anonymous namespace - -// createAMDGPUISelDag - This pass converts a legalized DAG into a AMDGPU-specific -// DAG, ready for instruction scheduling. -// -FunctionPass *llvm::createAMDGPUISelDag(TargetMachine &TM - ) { - return new AMDGPUDAGToDAGISel(TM); -} - -AMDGPUDAGToDAGISel::AMDGPUDAGToDAGISel(TargetMachine &TM - ) - : SelectionDAGISel(TM), Subtarget(TM.getSubtarget<AMDGPUSubtarget>()) -{ -} - -AMDGPUDAGToDAGISel::~AMDGPUDAGToDAGISel() { -} - -SDValue AMDGPUDAGToDAGISel::getSmallIPtrImm(unsigned int Imm) { - return CurDAG->getTargetConstant(Imm, MVT::i32); -} - -bool AMDGPUDAGToDAGISel::SelectADDRParam( - SDValue Addr, SDValue& R1, SDValue& R2) { - - if (Addr.getOpcode() == ISD::FrameIndex) { - if (FrameIndexSDNode *FIN = dyn_cast<FrameIndexSDNode>(Addr)) { - R1 = CurDAG->getTargetFrameIndex(FIN->getIndex(), MVT::i32); - R2 = CurDAG->getTargetConstant(0, MVT::i32); - } else { - R1 = Addr; - R2 = CurDAG->getTargetConstant(0, MVT::i32); - } - } else if (Addr.getOpcode() == ISD::ADD) { - R1 = Addr.getOperand(0); - R2 = Addr.getOperand(1); - } else { - R1 = Addr; - R2 = CurDAG->getTargetConstant(0, MVT::i32); - } - return true; -} - -bool AMDGPUDAGToDAGISel::SelectADDR(SDValue Addr, SDValue& R1, SDValue& R2) { - if (Addr.getOpcode() == ISD::TargetExternalSymbol || - Addr.getOpcode() == ISD::TargetGlobalAddress) { - return false; - } - return SelectADDRParam(Addr, R1, R2); -} - - -bool AMDGPUDAGToDAGISel::SelectADDR64(SDValue Addr, SDValue& R1, SDValue& R2) { - if (Addr.getOpcode() == ISD::TargetExternalSymbol || - Addr.getOpcode() == ISD::TargetGlobalAddress) { - return false; - } - - if (Addr.getOpcode() == ISD::FrameIndex) { - if (FrameIndexSDNode *FIN = dyn_cast<FrameIndexSDNode>(Addr)) { - R1 = CurDAG->getTargetFrameIndex(FIN->getIndex(), MVT::i64); - R2 = CurDAG->getTargetConstant(0, MVT::i64); - } else { - R1 = Addr; - R2 = CurDAG->getTargetConstant(0, MVT::i64); - } - } else if (Addr.getOpcode() == ISD::ADD) { - R1 = Addr.getOperand(0); - R2 = Addr.getOperand(1); - } else { - R1 = Addr; - R2 = CurDAG->getTargetConstant(0, MVT::i64); - } - return true; -} - -SDNode *AMDGPUDAGToDAGISel::Select(SDNode *N) { - unsigned int Opc = N->getOpcode(); - if (N->isMachineOpcode()) { - return NULL; // Already selected. - } - switch (Opc) { - default: break; - case ISD::FrameIndex: - { - if (FrameIndexSDNode *FIN = dyn_cast<FrameIndexSDNode>(N)) { - unsigned int FI = FIN->getIndex(); - EVT OpVT = N->getValueType(0); - unsigned int NewOpc = AMDGPU::COPY; - SDValue TFI = CurDAG->getTargetFrameIndex(FI, MVT::i32); - return CurDAG->SelectNodeTo(N, NewOpc, OpVT, TFI); - } - } - break; - } - return SelectCode(N); -} - -bool AMDGPUDAGToDAGISel::checkType(const Value *ptr, unsigned int addrspace) { - if (!ptr) { - return false; - } - Type *ptrType = ptr->getType(); - return dyn_cast<PointerType>(ptrType)->getAddressSpace() == addrspace; -} - -const Value * AMDGPUDAGToDAGISel::getBasePointerValue(const Value *V) -{ - if (!V) { - return NULL; - } - const Value *ret = NULL; - ValueMap<const Value *, bool> ValueBitMap; - std::queue<const Value *, std::list<const Value *> > ValueQueue; - ValueQueue.push(V); - while (!ValueQueue.empty()) { - V = ValueQueue.front(); - if (ValueBitMap.find(V) == ValueBitMap.end()) { - ValueBitMap[V] = true; - if (dyn_cast<Argument>(V) && dyn_cast<PointerType>(V->getType())) { - ret = V; - break; - } else if (dyn_cast<GlobalVariable>(V)) { - ret = V; - break; - } else if (dyn_cast<Constant>(V)) { - const ConstantExpr *CE = dyn_cast<ConstantExpr>(V); - if (CE) { - ValueQueue.push(CE->getOperand(0)); - } - } else if (const AllocaInst *AI = dyn_cast<AllocaInst>(V)) { - ret = AI; - break; - } else if (const Instruction *I = dyn_cast<Instruction>(V)) { - uint32_t numOps = I->getNumOperands(); - for (uint32_t x = 0; x < numOps; ++x) { - ValueQueue.push(I->getOperand(x)); - } - } else { - // assert(0 && "Found a Value that we didn't know how to handle!"); - } - } - ValueQueue.pop(); - } - return ret; -} - -bool AMDGPUDAGToDAGISel::isGlobalStore(const StoreSDNode *N) { - return checkType(N->getSrcValue(), AMDGPUAS::GLOBAL_ADDRESS); -} - -bool AMDGPUDAGToDAGISel::isPrivateStore(const StoreSDNode *N) { - return (!checkType(N->getSrcValue(), AMDGPUAS::LOCAL_ADDRESS) - && !checkType(N->getSrcValue(), AMDGPUAS::GLOBAL_ADDRESS) - && !checkType(N->getSrcValue(), AMDGPUAS::REGION_ADDRESS)); -} - -bool AMDGPUDAGToDAGISel::isLocalStore(const StoreSDNode *N) { - return checkType(N->getSrcValue(), AMDGPUAS::LOCAL_ADDRESS); -} - -bool AMDGPUDAGToDAGISel::isRegionStore(const StoreSDNode *N) { - return checkType(N->getSrcValue(), AMDGPUAS::REGION_ADDRESS); -} - -bool AMDGPUDAGToDAGISel::isConstantLoad(const LoadSDNode *N, int cbID) { - if (checkType(N->getSrcValue(), AMDGPUAS::CONSTANT_ADDRESS)) { - return true; - } - MachineMemOperand *MMO = N->getMemOperand(); - const Value *V = MMO->getValue(); - const Value *BV = getBasePointerValue(V); - if (MMO - && MMO->getValue() - && ((V && dyn_cast<GlobalValue>(V)) - || (BV && dyn_cast<GlobalValue>( - getBasePointerValue(MMO->getValue()))))) { - return checkType(N->getSrcValue(), AMDGPUAS::PRIVATE_ADDRESS); - } else { - return false; - } -} - -bool AMDGPUDAGToDAGISel::isGlobalLoad(const LoadSDNode *N) { - return checkType(N->getSrcValue(), AMDGPUAS::GLOBAL_ADDRESS); -} - -bool AMDGPUDAGToDAGISel::isLocalLoad(const LoadSDNode *N) { - return checkType(N->getSrcValue(), AMDGPUAS::LOCAL_ADDRESS); -} - -bool AMDGPUDAGToDAGISel::isRegionLoad(const LoadSDNode *N) { - return checkType(N->getSrcValue(), AMDGPUAS::REGION_ADDRESS); -} - -bool AMDGPUDAGToDAGISel::isCPLoad(const LoadSDNode *N) { - MachineMemOperand *MMO = N->getMemOperand(); - if (checkType(N->getSrcValue(), AMDGPUAS::PRIVATE_ADDRESS)) { - if (MMO) { - const Value *V = MMO->getValue(); - const PseudoSourceValue *PSV = dyn_cast<PseudoSourceValue>(V); - if (PSV && PSV == PseudoSourceValue::getConstantPool()) { - return true; - } - } - } - return false; -} - -bool AMDGPUDAGToDAGISel::isPrivateLoad(const LoadSDNode *N) { - if (checkType(N->getSrcValue(), AMDGPUAS::PRIVATE_ADDRESS)) { - // Check to make sure we are not a constant pool load or a constant load - // that is marked as a private load - if (isCPLoad(N) || isConstantLoad(N, -1)) { - return false; - } - } - if (!checkType(N->getSrcValue(), AMDGPUAS::LOCAL_ADDRESS) - && !checkType(N->getSrcValue(), AMDGPUAS::GLOBAL_ADDRESS) - && !checkType(N->getSrcValue(), AMDGPUAS::REGION_ADDRESS) - && !checkType(N->getSrcValue(), AMDGPUAS::CONSTANT_ADDRESS) - && !checkType(N->getSrcValue(), AMDGPUAS::PARAM_D_ADDRESS) - && !checkType(N->getSrcValue(), AMDGPUAS::PARAM_I_ADDRESS)) - { - return true; - } - return false; -} - -const char *AMDGPUDAGToDAGISel::getPassName() const { - return "AMDGPU DAG->DAG Pattern Instruction Selection"; -} - -#ifdef DEBUGTMP -#undef INT64_C -#endif -#undef DEBUGTMP - -///==== AMDGPU Functions ====/// - -bool AMDGPUDAGToDAGISel::SelectADDR8BitOffset(SDValue Addr, SDValue& Base, - SDValue& Offset) { - if (Addr.getOpcode() == ISD::TargetExternalSymbol || - Addr.getOpcode() == ISD::TargetGlobalAddress) { - return false; - } - - - if (Addr.getOpcode() == ISD::ADD) { - bool Match = false; - - // Find the base ptr and the offset - for (unsigned i = 0; i < Addr.getNumOperands(); i++) { - SDValue Arg = Addr.getOperand(i); - ConstantSDNode * OffsetNode = dyn_cast<ConstantSDNode>(Arg); - // This arg isn't a constant so it must be the base PTR. - if (!OffsetNode) { - Base = Addr.getOperand(i); - continue; - } - // Check if the constant argument fits in 8-bits. The offset is in bytes - // so we need to convert it to dwords. - if (isUInt<8>(OffsetNode->getZExtValue() >> 2)) { - Match = true; - Offset = CurDAG->getTargetConstant(OffsetNode->getZExtValue() >> 2, - MVT::i32); - } - } - return Match; - } - - // Default case, no offset - Base = Addr; - Offset = CurDAG->getTargetConstant(0, MVT::i32); - return true; -} - -bool AMDGPUDAGToDAGISel::SelectADDRVTX_READ(SDValue Addr, SDValue &Base, - SDValue &Offset) -{ - ConstantSDNode * IMMOffset; - - if (Addr.getOpcode() == ISD::ADD - && (IMMOffset = dyn_cast<ConstantSDNode>(Addr.getOperand(1))) - && isInt<16>(IMMOffset->getZExtValue())) { - - Base = Addr.getOperand(0); - Offset = CurDAG->getTargetConstant(IMMOffset->getZExtValue(), MVT::i32); - return true; - // If the pointer address is constant, we can move it to the offset field. - } else if ((IMMOffset = dyn_cast<ConstantSDNode>(Addr)) - && isInt<16>(IMMOffset->getZExtValue())) { - Base = CurDAG->getCopyFromReg(CurDAG->getEntryNode(), - CurDAG->getEntryNode().getDebugLoc(), - AMDGPU::ZERO, MVT::i32); - Offset = CurDAG->getTargetConstant(IMMOffset->getZExtValue(), MVT::i32); - return true; - } - - // Default case, no offset - Base = Addr; - Offset = CurDAG->getTargetConstant(0, MVT::i32); - return true; -} - -bool AMDGPUDAGToDAGISel::SelectADDRReg(SDValue Addr, SDValue& Base, - SDValue& Offset) { - if (Addr.getOpcode() == ISD::TargetExternalSymbol || - Addr.getOpcode() == ISD::TargetGlobalAddress || - Addr.getOpcode() != ISD::ADD) { - return false; - } - - Base = Addr.getOperand(0); - Offset = Addr.getOperand(1); - - return true; -} |