if (!UseSoftFloat && Subtarget->hasVFP2() && !Subtarget->isThumb()) {
addRegisterClass(MVT::f32, ARM::SPRRegisterClass);
addRegisterClass(MVT::f64, ARM::DPRRegisterClass);
-
+
setTruncStoreAction(MVT::f64, MVT::f32, Expand);
}
computeRegisterProperties();
// ARM does not have ROTL.
setOperationAction(ISD::ROTL, MVT::i32, Expand);
- setOperationAction(ISD::CTTZ , MVT::i32, Expand);
+ setOperationAction(ISD::CTTZ, MVT::i32, Expand);
setOperationAction(ISD::CTPOP, MVT::i32, Expand);
if (!Subtarget->hasV5TOps() || Subtarget->isThumb())
setOperationAction(ISD::CTLZ, MVT::i32, Expand);
setOperationAction(ISD::UREM, MVT::i32, Expand);
setOperationAction(ISD::SDIVREM, MVT::i32, Expand);
setOperationAction(ISD::UDIVREM, MVT::i32, Expand);
-
+
// Support label based line numbers.
setOperationAction(ISD::DBG_STOPPOINT, MVT::Other, Expand);
setOperationAction(ISD::DEBUG_LOC, MVT::Other, Expand);
setOperationAction(ISD::GlobalTLSAddress, MVT::i32, Custom);
// Use the default implementation.
- setOperationAction(ISD::VASTART , MVT::Other, Custom);
- setOperationAction(ISD::VAARG , MVT::Other, Expand);
- setOperationAction(ISD::VACOPY , MVT::Other, Expand);
- setOperationAction(ISD::VAEND , MVT::Other, Expand);
- setOperationAction(ISD::STACKSAVE, MVT::Other, Expand);
+ setOperationAction(ISD::VASTART, MVT::Other, Custom);
+ setOperationAction(ISD::VAARG, MVT::Other, Expand);
+ setOperationAction(ISD::VACOPY, MVT::Other, Expand);
+ setOperationAction(ISD::VAEND, MVT::Other, Expand);
+ setOperationAction(ISD::STACKSAVE, MVT::Other, Expand);
setOperationAction(ISD::STACKRESTORE, MVT::Other, Expand);
- setOperationAction(ISD::DYNAMIC_STACKALLOC, MVT::i32 , Expand);
- setOperationAction(ISD::MEMBARRIER , MVT::Other, Expand);
+ setOperationAction(ISD::DYNAMIC_STACKALLOC, MVT::i32, Expand);
+ setOperationAction(ISD::MEMBARRIER, MVT::Other, Expand);
if (!Subtarget->hasV6Ops()) {
setOperationAction(ISD::SIGN_EXTEND_INREG, MVT::i16, Expand);
// We want to custom lower some of our intrinsics.
setOperationAction(ISD::INTRINSIC_WO_CHAIN, MVT::Other, Custom);
- setOperationAction(ISD::SETCC , MVT::i32, Expand);
- setOperationAction(ISD::SETCC , MVT::f32, Expand);
- setOperationAction(ISD::SETCC , MVT::f64, Expand);
- setOperationAction(ISD::SELECT , MVT::i32, Expand);
- setOperationAction(ISD::SELECT , MVT::f32, Expand);
- setOperationAction(ISD::SELECT , MVT::f64, Expand);
+ setOperationAction(ISD::SETCC, MVT::i32, Expand);
+ setOperationAction(ISD::SETCC, MVT::f32, Expand);
+ setOperationAction(ISD::SETCC, MVT::f64, Expand);
+ setOperationAction(ISD::SELECT, MVT::i32, Expand);
+ setOperationAction(ISD::SELECT, MVT::f32, Expand);
+ setOperationAction(ISD::SELECT, MVT::f64, Expand);
setOperationAction(ISD::SELECT_CC, MVT::i32, Custom);
setOperationAction(ISD::SELECT_CC, MVT::f32, Custom);
setOperationAction(ISD::SELECT_CC, MVT::f64, Custom);
- setOperationAction(ISD::BRCOND , MVT::Other, Expand);
- setOperationAction(ISD::BR_CC , MVT::i32, Custom);
- setOperationAction(ISD::BR_CC , MVT::f32, Custom);
- setOperationAction(ISD::BR_CC , MVT::f64, Custom);
- setOperationAction(ISD::BR_JT , MVT::Other, Custom);
+ setOperationAction(ISD::BRCOND, MVT::Other, Expand);
+ setOperationAction(ISD::BR_CC, MVT::i32, Custom);
+ setOperationAction(ISD::BR_CC, MVT::f32, Custom);
+ setOperationAction(ISD::BR_CC, MVT::f64, Custom);
+ setOperationAction(ISD::BR_JT, MVT::Other, Custom);
// We don't support sin/cos/fmod/copysign/pow
- setOperationAction(ISD::FSIN , MVT::f64, Expand);
- setOperationAction(ISD::FSIN , MVT::f32, Expand);
- setOperationAction(ISD::FCOS , MVT::f32, Expand);
- setOperationAction(ISD::FCOS , MVT::f64, Expand);
- setOperationAction(ISD::FREM , MVT::f64, Expand);
- setOperationAction(ISD::FREM , MVT::f32, Expand);
+ setOperationAction(ISD::FSIN, MVT::f64, Expand);
+ setOperationAction(ISD::FSIN, MVT::f32, Expand);
+ setOperationAction(ISD::FCOS, MVT::f32, Expand);
+ setOperationAction(ISD::FCOS, MVT::f64, Expand);
+ setOperationAction(ISD::FREM, MVT::f64, Expand);
+ setOperationAction(ISD::FREM, MVT::f32, Expand);
if (!UseSoftFloat && Subtarget->hasVFP2() && !Subtarget->isThumb()) {
setOperationAction(ISD::FCOPYSIGN, MVT::f64, Custom);
setOperationAction(ISD::FCOPYSIGN, MVT::f32, Custom);
}
- setOperationAction(ISD::FPOW , MVT::f64, Expand);
- setOperationAction(ISD::FPOW , MVT::f32, Expand);
-
+ setOperationAction(ISD::FPOW, MVT::f64, Expand);
+ setOperationAction(ISD::FPOW, MVT::f32, Expand);
+
// int <-> fp are custom expanded into bit_convert + ARMISD ops.
if (!UseSoftFloat && Subtarget->hasVFP2() && !Subtarget->isThumb()) {
setOperationAction(ISD::SINT_TO_FP, MVT::i32, Custom);
// ARMISD::FMRRD - No need to call setTargetDAGCombine
setTargetDAGCombine(ISD::ADD);
setTargetDAGCombine(ISD::SUB);
-
-
+
setStackPointerRegisterToSaveRestore(ARM::SP);
setSchedulingPreference(SchedulingForRegPressure);
setIfCvtBlockSizeLimit(Subtarget->isThumb() ? 0 : 10);
maxStoresPerMemcpy = 1; //// temporary - rewrite interface to use type
}
-
const char *ARMTargetLowering::getTargetNodeName(unsigned Opcode) const {
switch (Opcode) {
default: return 0;
case ARMISD::FMSTAT: return "ARMISD::FMSTAT";
case ARMISD::CMOV: return "ARMISD::CMOV";
case ARMISD::CNEG: return "ARMISD::CNEG";
-
+
case ARMISD::FTOSI: return "ARMISD::FTOSI";
case ARMISD::FTOUI: return "ARMISD::FTOUI";
case ARMISD::SITOF: return "ARMISD::SITOF";
case ARMISD::SRL_FLAG: return "ARMISD::SRL_FLAG";
case ARMISD::SRA_FLAG: return "ARMISD::SRA_FLAG";
case ARMISD::RRX: return "ARMISD::RRX";
-
+
case ARMISD::FMRRD: return "ARMISD::FMRRD";
case ARMISD::FMDRR: return "ARMISD::FMDRR";
// Lowering Code
//===----------------------------------------------------------------------===//
-
/// IntCCToARMCC - Convert a DAG integer condition code to an ARM CC
static ARMCC::CondCodes IntCCToARMCC(ISD::CondCode CC) {
switch (CC) {
// and flag operands which copy the outgoing args into the appropriate regs.
SDValue InFlag;
for (unsigned i = 0, e = RegsToPass.size(); i != e; ++i) {
- Chain = DAG.getCopyToReg(Chain, dl, RegsToPass[i].first,
+ Chain = DAG.getCopyToReg(Chain, dl, RegsToPass[i].first,
RegsToPass[i].second, InFlag);
InFlag = Chain.getValue(1);
}
ARMCP::CPStub, 4);
SDValue CPAddr = DAG.getTargetConstantPool(CPV, getPointerTy(), 4);
CPAddr = DAG.getNode(ARMISD::Wrapper, dl, MVT::i32, CPAddr);
- Callee = DAG.getLoad(getPointerTy(), dl,
- DAG.getEntryNode(), CPAddr, NULL, 0);
+ Callee = DAG.getLoad(getPointerTy(), dl,
+ DAG.getEntryNode(), CPAddr, NULL, 0);
SDValue PICLabel = DAG.getConstant(ARMPCLabelIndex++, MVT::i32);
- Callee = DAG.getNode(ARMISD::PIC_ADD, dl,
+ Callee = DAG.getNode(ARMISD::PIC_ADD, dl,
getPointerTy(), Callee, PICLabel);
} else
Callee = DAG.getTargetGlobalAddress(GV, getPointerTy());
SDValue CPAddr = DAG.getTargetConstantPool(CPV, getPointerTy(), 4);
CPAddr = DAG.getNode(ARMISD::Wrapper, dl, MVT::i32, CPAddr);
Callee = DAG.getLoad(getPointerTy(), dl,
- DAG.getEntryNode(), CPAddr, NULL, 0);
+ DAG.getEntryNode(), CPAddr, NULL, 0);
SDValue PICLabel = DAG.getConstant(ARMPCLabelIndex++, MVT::i32);
- Callee = DAG.getNode(ARMISD::PIC_ADD, dl,
+ Callee = DAG.getNode(ARMISD::PIC_ADD, dl,
getPointerTy(), Callee, PICLabel);
} else
Callee = DAG.getTargetExternalSymbol(Sym, getPointerTy());
case MVT::Other:
break;
case MVT::i32:
- Chain = DAG.getCopyFromReg(Chain, dl, ARM::R0,
+ Chain = DAG.getCopyFromReg(Chain, dl, ARM::R0,
MVT::i32, InFlag).getValue(1);
ResultVals.push_back(Chain.getValue(0));
if (TheCall->getNumRetVals() > 1 &&
}
break;
case MVT::f32:
- Chain = DAG.getCopyFromReg(Chain, dl, ARM::R0,
+ Chain = DAG.getCopyFromReg(Chain, dl, ARM::R0,
MVT::i32, InFlag).getValue(1);
ResultVals.push_back(DAG.getNode(ISD::BIT_CONVERT, dl, MVT::f32,
Chain.getValue(0)));
} else if (Op.getValueType() == MVT::f64) {
// Legalize ret f64 -> ret 2 x i32. We always have fmrrd if f64 is
// available.
- Op = DAG.getNode(ARMISD::FMRRD, dl,
+ Op = DAG.getNode(ARMISD::FMRRD, dl,
DAG.getVTList(MVT::i32, MVT::i32), &Op,1);
SDValue Sign = DAG.getConstant(0, MVT::i32);
- return DAG.getNode(ISD::RET, dl, MVT::Other, Chain, Op, Sign,
+ return DAG.getNode(ISD::RET, dl, MVT::Other, Chain, Op, Sign,
Op.getValue(1), Sign);
}
Copy = DAG.getCopyToReg(Chain, dl, ARM::R0, Op, SDValue());
break;
case 5:
Copy = DAG.getCopyToReg(Chain, dl, ARM::R1, Op.getOperand(3), SDValue());
- Copy = DAG.getCopyToReg(Copy, dl, ARM::R0, Op.getOperand(1),
+ Copy = DAG.getCopyToReg(Copy, dl, ARM::R0, Op.getOperand(1),
Copy.getValue(1));
// If we haven't noted the R0+R1 are live out, do so now.
if (DAG.getMachineFunction().getRegInfo().liveout_empty()) {
break;
case 9: // i128 -> 4 regs
Copy = DAG.getCopyToReg(Chain, dl, ARM::R3, Op.getOperand(7), SDValue());
- Copy = DAG.getCopyToReg(Copy , dl, ARM::R2, Op.getOperand(5),
+ Copy = DAG.getCopyToReg(Copy, dl, ARM::R2, Op.getOperand(5),
Copy.getValue(1));
- Copy = DAG.getCopyToReg(Copy , dl, ARM::R1, Op.getOperand(3),
+ Copy = DAG.getCopyToReg(Copy, dl, ARM::R1, Op.getOperand(3),
Copy.getValue(1));
- Copy = DAG.getCopyToReg(Copy , dl, ARM::R0, Op.getOperand(1),
+ Copy = DAG.getCopyToReg(Copy, dl, ARM::R0, Op.getOperand(1),
Copy.getValue(1));
// If we haven't noted the R0+R1 are live out, do so now.
if (DAG.getMachineFunction().getRegInfo().liveout_empty()) {
DAG.getMachineFunction().getRegInfo().addLiveOut(ARM::R3);
}
break;
-
+
}
//We must use RET_FLAG instead of BRIND because BRIND doesn't have a flag
return DAG.getNode(ARMISD::RET_FLAG, dl, MVT::Other, Copy, Copy.getValue(1));
}
-// ConstantPool, JumpTable, GlobalAddress, and ExternalSymbol are lowered as
+// ConstantPool, JumpTable, GlobalAddress, and ExternalSymbol are lowered as
// their target countpart wrapped in the ARMISD::Wrapper node. Suppose N is
// one of the above mentioned nodes. It has to be wrapped because otherwise
// Select(N) returns N. So the raw TargetGlobalAddress nodes, etc. can only
// "local exec" model.
SDValue
ARMTargetLowering::LowerToTLSExecModels(GlobalAddressSDNode *GA,
- SelectionDAG &DAG) {
+ SelectionDAG &DAG) {
GlobalValue *GV = GA->getGlobal();
DebugLoc dl = GA->getDebugLoc();
SDValue Offset;
}
SDValue ARMTargetLowering::LowerGlobalAddressELF(SDValue Op,
- SelectionDAG &DAG) {
+ SelectionDAG &DAG) {
MVT PtrVT = getPointerTy();
DebugLoc dl = Op.getDebugLoc();
GlobalValue *GV = cast<GlobalAddressSDNode>(Op)->getGlobal();
new ARMConstantPoolValue(GV, ARMCP::CPValue, UseGOTOFF ? "GOTOFF":"GOT");
SDValue CPAddr = DAG.getTargetConstantPool(CPV, PtrVT, 4);
CPAddr = DAG.getNode(ARMISD::Wrapper, dl, MVT::i32, CPAddr);
- SDValue Result = DAG.getLoad(PtrVT, dl, DAG.getEntryNode(),
+ SDValue Result = DAG.getLoad(PtrVT, dl, DAG.getEntryNode(),
CPAddr, NULL, 0);
SDValue Chain = Result.getValue(1);
SDValue GOT = DAG.getGLOBAL_OFFSET_TABLE(PtrVT);
}
SDValue ARMTargetLowering::LowerGlobalAddressDarwin(SDValue Op,
- SelectionDAG &DAG) {
+ SelectionDAG &DAG) {
MVT PtrVT = getPointerTy();
DebugLoc dl = Op.getDebugLoc();
GlobalValue *GV = cast<GlobalAddressSDNode>(Op)->getGlobal();
}
SDValue ARMTargetLowering::LowerGLOBAL_OFFSET_TABLE(SDValue Op,
- SelectionDAG &DAG){
+ SelectionDAG &DAG){
assert(Subtarget->isTargetELF() &&
"GLOBAL OFFSET TABLE not implemented for non-ELF targets");
MVT PtrVT = getPointerTy();
}
static SDValue LowerVASTART(SDValue Op, SelectionDAG &DAG,
- unsigned VarArgsFrameIndex) {
+ unsigned VarArgsFrameIndex) {
// vastart just stores the address of the VarArgsFrameIndex slot into the
// memory location argument.
DebugLoc dl = Op.getDebugLoc();
}
static SDValue LowerFORMAL_ARGUMENT(SDValue Op, SelectionDAG &DAG,
- unsigned ArgNo, unsigned &NumGPRs,
- unsigned &ArgOffset, DebugLoc dl) {
+ unsigned ArgNo, unsigned &NumGPRs,
+ unsigned &ArgOffset, DebugLoc dl) {
MachineFunction &MF = DAG.getMachineFunction();
MVT ObjectVT = Op.getValue(ArgNo).getValueType();
SDValue Root = Op.getOperand(0);
}
/// Returns a appropriate VFP CMP (fcmp{s|d}+fmstat) for the given operands.
-static SDValue getVFPCmp(SDValue LHS, SDValue RHS, SelectionDAG &DAG,
+static SDValue getVFPCmp(SDValue LHS, SDValue RHS, SelectionDAG &DAG,
DebugLoc dl) {
SDValue Cmp;
if (!isFloatingPointZero(RHS))
}
static SDValue LowerSELECT_CC(SDValue Op, SelectionDAG &DAG,
- const ARMSubtarget *ST) {
+ const ARMSubtarget *ST) {
MVT VT = Op.getValueType();
SDValue LHS = Op.getOperand(0);
SDValue RHS = Op.getOperand(1);
SDValue ARMCC2 = DAG.getConstant(CondCode2, MVT::i32);
// FIXME: Needs another CMP because flag can have but one use.
SDValue Cmp2 = getVFPCmp(LHS, RHS, DAG, dl);
- Result = DAG.getNode(ARMISD::CMOV, dl, VT,
+ Result = DAG.getNode(ARMISD::CMOV, dl, VT,
Result, TrueVal, ARMCC2, CCR, Cmp2);
}
return Result;
}
static SDValue LowerBR_CC(SDValue Op, SelectionDAG &DAG,
- const ARMSubtarget *ST) {
+ const ARMSubtarget *ST) {
SDValue Chain = Op.getOperand(0);
ISD::CondCode CC = cast<CondCodeSDNode>(Op.getOperand(1))->get();
SDValue LHS = Op.getOperand(2);
SDValue ARMCC;
SDValue CCR = DAG.getRegister(ARM::CPSR, MVT::i32);
SDValue Cmp = getARMCmp(LHS, RHS, CC, ARMCC, DAG, ST->isThumb(), dl);
- return DAG.getNode(ARMISD::BRCOND, dl, MVT::Other,
+ return DAG.getNode(ARMISD::BRCOND, dl, MVT::Other,
Chain, Dest, ARMCC, CCR,Cmp);
}
if (FPCCToARMCC(CC, CondCode, CondCode2))
// Swap the LHS/RHS of the comparison if needed.
std::swap(LHS, RHS);
-
+
SDValue Cmp = getVFPCmp(LHS, RHS, DAG, dl);
SDValue ARMCC = DAG.getConstant(CondCode, MVT::i32);
SDValue CCR = DAG.getRegister(ARM::CPSR, MVT::i32);
for (i = 0;
i < MAX_LOADS_IN_LDM && EmittedNumMemOps + i < NumMemOps; ++i) {
TFOps[i] = DAG.getStore(Chain, dl, Loads[i],
- DAG.getNode(ISD::ADD, dl, MVT::i32, Dst,
+ DAG.getNode(ISD::ADD, dl, MVT::i32, Dst,
DAG.getConstant(DstOff, MVT::i32)),
DstSV, DstSVOff + DstOff);
DstOff += VTSize;
EmittedNumMemOps += i;
}
- if (BytesLeft == 0)
+ if (BytesLeft == 0)
return Chain;
// Issue loads / stores for the trailing (1 - 3) bytes.
}
TFOps[i] = DAG.getStore(Chain, dl, Loads[i],
- DAG.getNode(ISD::ADD, dl, MVT::i32, Dst,
+ DAG.getNode(ISD::ADD, dl, MVT::i32, Dst,
DAG.getConstant(DstOff, MVT::i32)),
DstSV, DstSVOff + DstOff);
++i;
DAG.getConstant(1, MVT::i32));
return DAG.getNode(ARMISD::FMDRR, dl, MVT::f64, Lo, Hi);
}
-
+
// Turn f64->i64 into FMRRD.
- SDValue Cvt = DAG.getNode(ARMISD::FMRRD, dl,
+ SDValue Cvt = DAG.getNode(ARMISD::FMRRD, dl,
DAG.getVTList(MVT::i32, MVT::i32), &Op, 1);
-
+
// Merge the pieces into a single i64 value.
return DAG.getNode(ISD::BUILD_PAIR, dl, MVT::i64, Cvt, Cvt.getValue(1));
}
if (!isa<ConstantSDNode>(N->getOperand(1)) ||
cast<ConstantSDNode>(N->getOperand(1))->getZExtValue() != 1)
return SDValue();
-
+
// If we are in thumb mode, we don't have RRX.
if (ST->isThumb()) return SDValue();
-
+
// Okay, we have a 64-bit SRA or SRL of 1. Lower this to an RRX expr.
DebugLoc dl = N->getDebugLoc();
SDValue Lo = DAG.getNode(ISD::EXTRACT_ELEMENT, dl, MVT::i32, N->getOperand(0),
DAG.getConstant(0, MVT::i32));
SDValue Hi = DAG.getNode(ISD::EXTRACT_ELEMENT, dl, MVT::i32, N->getOperand(0),
DAG.getConstant(1, MVT::i32));
-
+
// First, build a SRA_FLAG/SRL_FLAG op, which shifts the top part by one and
// captures the result into a carry flag.
unsigned Opc = N->getOpcode() == ISD::SRL ? ARMISD::SRL_FLAG:ARMISD::SRA_FLAG;
Hi = DAG.getNode(Opc, dl, DAG.getVTList(MVT::i32, MVT::Flag), &Hi, 1);
-
+
// The low part is an ARMISD::RRX operand, which shifts the carry in.
Lo = DAG.getNode(ARMISD::RRX, dl, MVT::i32, Lo, Hi.getValue(1));
-
+
// Merge the pieces into a single i64 value.
return DAG.getNode(ISD::BUILD_PAIR, dl, MVT::i64, Lo, Hi);
}
-
SDValue ARMTargetLowering::LowerOperation(SDValue Op, SelectionDAG &DAG) {
switch (Op.getOpcode()) {
default: assert(0 && "Don't know how to custom lower this!"); abort();
return SDValue();
}
-
/// ReplaceNodeResults - Replace the results of node with an illegal result
/// type with new values built out of custom code.
-///
void ARMTargetLowering::ReplaceNodeResults(SDNode *N,
SmallVectorImpl<SDValue>&Results,
SelectionDAG &DAG) {
}
}
}
-
//===----------------------------------------------------------------------===//
// ARM Scheduler Hooks
static
SDValue combineSelectAndUse(SDNode *N, SDValue Slct, SDValue OtherOp,
TargetLowering::DAGCombinerInfo &DCI) {
-
SelectionDAG &DAG = DCI.DAG;
const TargetLowering &TLI = DAG.getTargetLoweringInfo();
MVT VT = N->getValueType(0);
TargetLowering::DAGCombinerInfo &DCI) {
// added by evan in r37685 with no testcase.
SDValue N0 = N->getOperand(0), N1 = N->getOperand(1);
-
+
// fold (add (select cc, 0, c), x) -> (select cc, x, (add, x, c))
if (N0.getOpcode() == ISD::SELECT && N0.getNode()->hasOneUse()) {
SDValue Result = combineSelectAndUse(N, N0, N1, DCI);
SDValue Result = combineSelectAndUse(N, N1, N0, DCI);
if (Result.getNode()) return Result;
}
-
+
return SDValue();
}
TargetLowering::DAGCombinerInfo &DCI) {
// added by evan in r37685 with no testcase.
SDValue N0 = N->getOperand(0), N1 = N->getOperand(1);
-
+
// fold (sub x, (select cc, 0, c)) -> (select cc, x, (sub, x, c))
if (N1.getOpcode() == ISD::SELECT && N1.getNode()->hasOneUse()) {
SDValue Result = combineSelectAndUse(N, N1, N0, DCI);
if (Result.getNode()) return Result;
}
-
+
return SDValue();
}
/// PerformFMRRDCombine - Target-specific dag combine xforms for ARMISD::FMRRD.
-static SDValue PerformFMRRDCombine(SDNode *N,
- TargetLowering::DAGCombinerInfo &DCI) {
+static SDValue PerformFMRRDCombine(SDNode *N,
+ TargetLowering::DAGCombinerInfo &DCI) {
// fmrrd(fmdrr x, y) -> x,y
SDValue InDouble = N->getOperand(0);
if (InDouble.getOpcode() == ARMISD::FMDRR)
}
SDValue ARMTargetLowering::PerformDAGCombine(SDNode *N,
- DAGCombinerInfo &DCI) const {
+ DAGCombinerInfo &DCI) const {
switch (N->getOpcode()) {
default: break;
case ISD::ADD: return PerformADDCombine(N, DCI);
case ISD::SUB: return PerformSUBCombine(N, DCI);
case ARMISD::FMRRD: return PerformFMRRDCombine(N, DCI);
}
-
+
return SDValue();
}
-
/// isLegalAddressImmediate - Return true if the integer value can be used
/// as the offset of the target addressing mode for load / store of the
/// given type.
/// isLegalAddressingMode - Return true if the addressing mode represented
/// by AM is legal for this target, for a load/store of the specified type.
-bool ARMTargetLowering::isLegalAddressingMode(const AddrMode &AM,
+bool ARMTargetLowering::isLegalAddressingMode(const AddrMode &AM,
const Type *Ty) const {
if (!isLegalAddressImmediate(AM.BaseOffs, getValueType(Ty, true), Subtarget))
return false;
-
+
// Can never fold addr of global into load/store.
- if (AM.BaseGV)
+ if (AM.BaseGV)
return false;
-
+
switch (AM.Scale) {
case 0: // no scale reg, must be "r+i" or "r", or "i".
break;
// ARM doesn't support any R+R*scale+imm addr modes.
if (AM.BaseOffs)
return false;
-
+
int Scale = AM.Scale;
switch (getValueType(Ty).getSimpleVT()) {
default: return false;
if (((unsigned)AM.HasBaseReg + Scale) <= 2)
return true;
return false;
-
+
case MVT::isVoid:
// Note, we allow "void" uses (basically, uses that aren't loads or
// stores), because arm allows folding a scale into many arithmetic
// operations. This should be made more precise and revisited later.
-
+
// Allow r << imm, but the imm has to be a multiple of two.
if (AM.Scale & 1) return false;
return isPowerOf2_32(AM.Scale);
return true;
}
-
static bool getIndexedAddressParts(SDNode *Ptr, MVT VT,
bool isSEXTLoad, SDValue &Base,
SDValue &Offset, bool &isInc,
void ARMTargetLowering::computeMaskedBitsForTargetNode(const SDValue Op,
const APInt &Mask,
- APInt &KnownZero,
+ APInt &KnownZero,
APInt &KnownOne,
const SelectionDAG &DAG,
unsigned Depth) const {
return TargetLowering::getConstraintType(Constraint);
}
-std::pair<unsigned, const TargetRegisterClass*>
+std::pair<unsigned, const TargetRegisterClass*>
ARMTargetLowering::getRegForInlineAsmConstraint(const std::string &Constraint,
MVT VT) const {
if (Constraint.size() == 1) {
projects / oota-llvm.git / commitdiff