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llvm-svn: 140133
This commit is contained in:
Andrew Trick 2011-09-20 03:06:13 +00:00
parent ec67102f5c
commit 43ccb48fb2
3 changed files with 43 additions and 43 deletions
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52
lib/CodeGen/SelectionDAG/InstrEmitter.cpp
View File

@ -87,7 +87,7 @@ EmitCopyFromReg(SDNode *Node, unsigned ResNo, bool IsClone, bool IsCloned,
UI != E; ++UI) {
SDNode *User = *UI;
bool Match = true;
if (User->getOpcode() == ISD::CopyToReg &&
if (User->getOpcode() == ISD::CopyToReg &&
User->getOperand(2).getNode() == Node &&
User->getOperand(2).getResNo() == ResNo) {
unsigned DestReg = cast<RegisterSDNode>(User->getOperand(1))->getReg();
@ -139,7 +139,7 @@ EmitCopyFromReg(SDNode *Node, unsigned ResNo, bool IsClone, bool IsCloned,
} else {
DstRC = TLI->getRegClassFor(VT);
}
// If all uses are reading from the src physical register and copying the
// register is either impossible or very expensive, then don't create a copy.
if (MatchReg && SrcRC->getCopyCost() < 0) {
@ -167,7 +167,7 @@ unsigned InstrEmitter::getDstOfOnlyCopyToRegUse(SDNode *Node,
return 0;
SDNode *User = *Node->use_begin();
if (User->getOpcode() == ISD::CopyToReg &&
if (User->getOpcode() == ISD::CopyToReg &&
User->getOperand(2).getNode() == Node &&
User->getOperand(2).getResNo() == ResNo) {
unsigned Reg = cast<RegisterSDNode>(User->getOperand(1))->getReg();
@ -202,7 +202,7 @@ void InstrEmitter::CreateVirtualRegisters(SDNode *Node, MachineInstr *MI,
for (SDNode::use_iterator UI = Node->use_begin(), E = Node->use_end();
UI != E; ++UI) {
SDNode *User = *UI;
if (User->getOpcode() == ISD::CopyToReg &&
if (User->getOpcode() == ISD::CopyToReg &&
User->getOperand(2).getNode() == Node &&
User->getOperand(2).getResNo() == i) {
unsigned Reg = cast<RegisterSDNode>(User->getOperand(1))->getReg();
@ -326,7 +326,7 @@ InstrEmitter::AddRegisterOperand(MachineInstr *MI, SDValue Op,
/// AddOperand - Add the specified operand to the specified machine instr. II
/// specifies the instruction information for the node, and IIOpNum is the
/// operand number (in the II) that we are adding. IIOpNum and II are used for
/// operand number (in the II) that we are adding. IIOpNum and II are used for
/// assertions only.
void InstrEmitter::AddOperand(MachineInstr *MI, SDValue Op,
unsigned IIOpNum,
@ -365,7 +365,7 @@ void InstrEmitter::AddOperand(MachineInstr *MI, SDValue Op,
Align = TM->getTargetData()->getTypeAllocSize(Type);
}
}
unsigned Idx;
MachineConstantPool *MCP = MF->getConstantPool();
if (CP->isMachineConstantPoolEntry())
@ -406,18 +406,18 @@ getSuperRegisterRegClass(const TargetRegisterClass *TRC,
/// EmitSubregNode - Generate machine code for subreg nodes.
///
void InstrEmitter::EmitSubregNode(SDNode *Node,
void InstrEmitter::EmitSubregNode(SDNode *Node,
DenseMap<SDValue, unsigned> &VRBaseMap,
bool IsClone, bool IsCloned) {
unsigned VRBase = 0;
unsigned Opc = Node->getMachineOpcode();
// If the node is only used by a CopyToReg and the dest reg is a vreg, use
// the CopyToReg'd destination register instead of creating a new vreg.
for (SDNode::use_iterator UI = Node->use_begin(), E = Node->use_end();
UI != E; ++UI) {
SDNode *User = *UI;
if (User->getOpcode() == ISD::CopyToReg &&
if (User->getOpcode() == ISD::CopyToReg &&
User->getOperand(2).getNode() == Node) {
unsigned DestReg = cast<RegisterSDNode>(User->getOperand(1))->getReg();
if (TargetRegisterInfo::isVirtualRegister(DestReg)) {
@ -426,7 +426,7 @@ void InstrEmitter::EmitSubregNode(SDNode *Node,
}
}
}
if (Opc == TargetOpcode::EXTRACT_SUBREG) {
// EXTRACT_SUBREG is lowered as %dst = COPY %src:sub
unsigned SubIdx = cast<ConstantSDNode>(Node->getOperand(1))->getZExtValue();
@ -498,7 +498,7 @@ void InstrEmitter::EmitSubregNode(SDNode *Node,
// Create the insert_subreg or subreg_to_reg machine instruction.
MachineInstr *MI = BuildMI(*MF, Node->getDebugLoc(), TII->get(Opc));
MI->addOperand(MachineOperand::CreateReg(VRBase, true));
// If creating a subreg_to_reg, then the first input operand
// is an implicit value immediate, otherwise it's a register
if (Opc == TargetOpcode::SUBREG_TO_REG) {
@ -514,7 +514,7 @@ void InstrEmitter::EmitSubregNode(SDNode *Node,
MBB->insert(InsertPos, MI);
} else
llvm_unreachable("Node is not insert_subreg, extract_subreg, or subreg_to_reg");
SDValue Op(Node, 0);
bool isNew = VRBaseMap.insert(std::make_pair(Op, VRBase)).second;
(void)isNew; // Silence compiler warning.
@ -643,9 +643,9 @@ void InstrEmitter::
EmitMachineNode(SDNode *Node, bool IsClone, bool IsCloned,
DenseMap<SDValue, unsigned> &VRBaseMap) {
unsigned Opc = Node->getMachineOpcode();
// Handle subreg insert/extract specially
if (Opc == TargetOpcode::EXTRACT_SUBREG ||
if (Opc == TargetOpcode::EXTRACT_SUBREG ||
Opc == TargetOpcode::INSERT_SUBREG ||
Opc == TargetOpcode::SUBREG_TO_REG) {
EmitSubregNode(Node, VRBaseMap, IsClone, IsCloned);
@ -667,7 +667,7 @@ EmitMachineNode(SDNode *Node, bool IsClone, bool IsCloned,
if (Opc == TargetOpcode::IMPLICIT_DEF)
// We want a unique VR for each IMPLICIT_DEF use.
return;
const MCInstrDesc &II = TII->get(Opc);
unsigned NumResults = CountResults(Node);
unsigned NodeOperands = CountOperands(Node);
@ -712,12 +712,12 @@ EmitMachineNode(SDNode *Node, bool IsClone, bool IsCloned,
// Then mark unused registers as dead.
MI->setPhysRegsDeadExcept(UsedRegs, *TRI);
}
// Add result register values for things that are defined by this
// instruction.
if (NumResults)
CreateVirtualRegisters(Node, MI, II, IsClone, IsCloned, VRBaseMap);
// Emit all of the actual operands of this instruction, adding them to the
// instruction as appropriate.
bool HasOptPRefs = II.getNumDefs() > NumResults;
@ -751,7 +751,7 @@ EmitMachineNode(SDNode *Node, bool IsClone, bool IsCloned,
MI->addRegisterDead(Reg, TRI);
}
}
// If the instruction has implicit defs and the node doesn't, mark the
// implicit def as dead. If the node has any glue outputs, we don't do this
// because we don't know what implicit defs are being used by glued nodes.
@ -792,7 +792,7 @@ EmitSpecialNode(SDNode *Node, bool IsClone, bool IsCloned,
SrcReg = R->getReg();
else
SrcReg = getVR(SrcVal, VRBaseMap);
unsigned DestReg = cast<RegisterSDNode>(Node->getOperand(1))->getReg();
if (SrcReg == DestReg) // Coalesced away the copy? Ignore.
break;
@ -812,12 +812,12 @@ EmitSpecialNode(SDNode *Node, bool IsClone, bool IsCloned,
TII->get(TargetOpcode::EH_LABEL)).addSym(S);
break;
}
case ISD::INLINEASM: {
unsigned NumOps = Node->getNumOperands();
if (Node->getOperand(NumOps-1).getValueType() == MVT::Glue)
--NumOps; // Ignore the glue operand.
// Create the inline asm machine instruction.
MachineInstr *MI = BuildMI(*MF, Node->getDebugLoc(),
TII->get(TargetOpcode::INLINEASM));
@ -826,7 +826,7 @@ EmitSpecialNode(SDNode *Node, bool IsClone, bool IsCloned,
SDValue AsmStrV = Node->getOperand(InlineAsm::Op_AsmString);
const char *AsmStr = cast<ExternalSymbolSDNode>(AsmStrV)->getSymbol();
MI->addOperand(MachineOperand::CreateES(AsmStr));
// Add the HasSideEffect and isAlignStack bits.
int64_t ExtraInfo =
cast<ConstantSDNode>(Node->getOperand(InlineAsm::Op_ExtraInfo))->
@ -838,10 +838,10 @@ EmitSpecialNode(SDNode *Node, bool IsClone, bool IsCloned,
unsigned Flags =
cast<ConstantSDNode>(Node->getOperand(i))->getZExtValue();
unsigned NumVals = InlineAsm::getNumOperandRegisters(Flags);
MI->addOperand(MachineOperand::CreateImm(Flags));
++i; // Skip the ID value.
switch (InlineAsm::getKind(Flags)) {
default: llvm_unreachable("Bad flags!");
case InlineAsm::Kind_RegDef:
@ -877,13 +877,13 @@ EmitSpecialNode(SDNode *Node, bool IsClone, bool IsCloned,
break;
}
}
// Get the mdnode from the asm if it exists and add it to the instruction.
SDValue MDV = Node->getOperand(InlineAsm::Op_MDNode);
const MDNode *MD = cast<MDNodeSDNode>(MDV)->getMD();
if (MD)
MI->addOperand(MachineOperand::CreateMetadata(MD));
MBB->insert(InsertPos, MI);
break;
}

8
lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
View File

@ -752,7 +752,7 @@ bool SelectionDAGISel::TryToFoldFastISelLoad(const LoadInst *LI,
// isn't one of the folded instructions, then we can't succeed here. Handle
// this by scanning the single-use users of the load until we get to FoldInst.
unsigned MaxUsers = 6; // Don't scan down huge single-use chains of instrs.
const Instruction *TheUser = LI->use_back();
while (TheUser != FoldInst && // Scan up until we find FoldInst.
// Stay in the right block.
@ -761,15 +761,15 @@ bool SelectionDAGISel::TryToFoldFastISelLoad(const LoadInst *LI,
// If there are multiple or no uses of this instruction, then bail out.
if (!TheUser->hasOneUse())
return false;
TheUser = TheUser->use_back();
}
// If we didn't find the fold instruction, then we failed to collapse the
// sequence.
if (TheUser != FoldInst)
return false;
// Don't try to fold volatile loads. Target has to deal with alignment
// constraints.
if (LI->isVolatile()) return false;

26
lib/Target/ARM/ARMISelLowering.cpp
View File

@ -4890,7 +4890,7 @@ ReplaceATOMIC_OP_64(SDNode *Node, SmallVectorImpl<SDValue>& Results,
// High part of Val1
Ops.push_back(DAG.getNode(ISD::EXTRACT_ELEMENT, dl, MVT::i32,
Node->getOperand(2), DAG.getIntPtrConstant(1)));
if (NewOp == ARMISD::ATOMCMPXCHG64_DAG) {
if (NewOp == ARMISD::ATOMCMPXCHG64_DAG) {
// High part of Val1
Ops.push_back(DAG.getNode(ISD::EXTRACT_ELEMENT, dl, MVT::i32,
Node->getOperand(3), DAG.getIntPtrConstant(0)));
@ -5410,7 +5410,7 @@ ARMTargetLowering::EmitAtomicBinary64(MachineInstr *MI, MachineBasicBlock *BB,
// Note that the registers are explicitly specified because there is not any
// way to force the register allocator to allocate a register pair.
//
// FIXME: The hardcoded registers are not necessary for Thumb2, but we
// FIXME: The hardcoded registers are not necessary for Thumb2, but we
// need to properly enforce the restriction that the two output registers
// for ldrexd must be different.
BB = loopMBB;
@ -7928,7 +7928,7 @@ ARMTargetLowering::getRegForInlineAsmConstraint(const std::string &Constraint,
return RCPair(0U, ARM::GPRRegisterClass);
case 'h': // High regs or no regs.
if (Subtarget->isThumb())
return RCPair(0U, ARM::hGPRRegisterClass);
return RCPair(0U, ARM::hGPRRegisterClass);
break;
case 'r':
return RCPair(0U, ARM::GPRRegisterClass);
@ -7942,15 +7942,15 @@ ARMTargetLowering::getRegForInlineAsmConstraint(const std::string &Constraint,
break;
case 'x':
if (VT == MVT::f32)
return RCPair(0U, ARM::SPR_8RegisterClass);
return RCPair(0U, ARM::SPR_8RegisterClass);
if (VT.getSizeInBits() == 64)
return RCPair(0U, ARM::DPR_8RegisterClass);
return RCPair(0U, ARM::DPR_8RegisterClass);
if (VT.getSizeInBits() == 128)
return RCPair(0U, ARM::QPR_8RegisterClass);
return RCPair(0U, ARM::QPR_8RegisterClass);
break;
case 't':
if (VT == MVT::f32)
return RCPair(0U, ARM::SPRRegisterClass);
return RCPair(0U, ARM::SPRRegisterClass);
break;
}
}
@ -7990,12 +7990,12 @@ void ARMTargetLowering::LowerAsmOperandForConstraint(SDValue Op,
switch (ConstraintLetter) {
case 'j':
// Constant suitable for movw, must be between 0 and
// 65535.
if (Subtarget->hasV6T2Ops())
if (CVal >= 0 && CVal <= 65535)
break;
return;
// Constant suitable for movw, must be between 0 and
// 65535.
if (Subtarget->hasV6T2Ops())
if (CVal >= 0 && CVal <= 65535)
break;
return;
case 'I':
if (Subtarget->isThumb1Only()) {
// This must be a constant between 0 and 255, for ADD