//===----------------------------------------------------------------------===//
#include "SparcISelLowering.h"
+#include "MCTargetDesc/SparcBaseInfo.h"
#include "SparcMachineFunctionInfo.h"
#include "SparcRegisterInfo.h"
#include "SparcTargetMachine.h"
-#include "MCTargetDesc/SparcBaseInfo.h"
#include "llvm/CodeGen/CallingConvLower.h"
#include "llvm/CodeGen/MachineFrameInfo.h"
#include "llvm/CodeGen/MachineFunction.h"
static bool CC_Sparc64_Full(unsigned &ValNo, MVT &ValVT,
MVT &LocVT, CCValAssign::LocInfo &LocInfo,
ISD::ArgFlagsTy &ArgFlags, CCState &State) {
- assert((LocVT == MVT::f32 || LocVT.getSizeInBits() == 64) &&
+ assert((LocVT == MVT::f32 || LocVT == MVT::f128
+ || LocVT.getSizeInBits() == 64) &&
"Can't handle non-64 bits locations");
// Stack space is allocated for all arguments starting from [%fp+BIAS+128].
- unsigned Offset = State.AllocateStack(8, 8);
+ unsigned size = (LocVT == MVT::f128) ? 16 : 8;
+ unsigned alignment = (LocVT == MVT::f128) ? 16 : 8;
+ unsigned Offset = State.AllocateStack(size, alignment);
unsigned Reg = 0;
if (LocVT == MVT::i64 && Offset < 6*8)
else if (LocVT == MVT::f32 && Offset < 16*8)
// Promote floats to %f1, %f3, ...
Reg = SP::F1 + Offset/4;
+ else if (LocVT == MVT::f128 && Offset < 16*8)
+ // Promote long doubles to %q0-%q28. (Which LLVM calls Q0-Q7).
+ Reg = SP::Q0 + Offset/16;
// Promote to register when possible, otherwise use the stack slot.
if (Reg) {
DAG.getTarget(), RVLocs, *DAG.getContext());
// Analyze return values.
- CCInfo.AnalyzeReturn(Outs, CC_Sparc64);
+ CCInfo.AnalyzeReturn(Outs, RetCC_Sparc64);
SDValue Flag;
SmallVector<SDValue, 4> RetOps(1, Chain);
// Integer return values must be sign or zero extended by the callee.
switch (VA.getLocInfo()) {
+ case CCValAssign::Full: break;
case CCValAssign::SExt:
OutVal = DAG.getNode(ISD::SIGN_EXTEND, DL, VA.getLocVT(), OutVal);
break;
break;
case CCValAssign::AExt:
OutVal = DAG.getNode(ISD::ANY_EXTEND, DL, VA.getLocVT(), OutVal);
- default:
break;
+ default:
+ llvm_unreachable("Unknown loc info!");
}
// The custom bit on an i32 return value indicates that it should be passed
{ "_Q_add", "_Q_sub", "_Q_mul", "_Q_div",
"_Q_sqrt", "_Q_neg",
"_Q_itoq", "_Q_stoq", "_Q_dtoq", "_Q_utoq",
+ "_Q_lltoq", "_Q_ulltoq",
0
};
- for (const char * const *I = ABICalls; I != 0; ++I)
+ for (const char * const *I = ABICalls; *I != 0; ++I)
if (strcmp(CalleeName, *I) == 0)
return true;
return false;
ArrayRef<ISD::OutputArg> Outs) {
for (unsigned i = 0, e = ArgLocs.size(); i != e; ++i) {
const CCValAssign &VA = ArgLocs[i];
+ MVT ValTy = VA.getLocVT();
// FIXME: What about f32 arguments? C promotes them to f64 when calling
// varargs functions.
- if (!VA.isRegLoc() || VA.getLocVT() != MVT::f64)
+ if (!VA.isRegLoc() || (ValTy != MVT::f64 && ValTy != MVT::f128))
continue;
// The fixed arguments to a varargs function still go in FP registers.
if (Outs[VA.getValNo()].IsFixed)
CCValAssign NewVA;
// Determine the offset into the argument array.
- unsigned Offset = 8 * (VA.getLocReg() - SP::D0);
+ unsigned firstReg = (ValTy == MVT::f64) ? SP::D0 : SP::Q0;
+ unsigned argSize = (ValTy == MVT::f64) ? 8 : 16;
+ unsigned Offset = argSize * (VA.getLocReg() - firstReg);
assert(Offset < 16*8 && "Offset out of range, bad register enum?");
if (Offset < 6*8) {
// This argument should go in %i0-%i5.
unsigned IReg = SP::I0 + Offset/8;
- // Full register, just bitconvert into i64.
- NewVA = CCValAssign::getReg(VA.getValNo(), VA.getValVT(),
- IReg, MVT::i64, CCValAssign::BCvt);
+ if (ValTy == MVT::f64)
+ // Full register, just bitconvert into i64.
+ NewVA = CCValAssign::getReg(VA.getValNo(), VA.getValVT(),
+ IReg, MVT::i64, CCValAssign::BCvt);
+ else {
+ assert(ValTy == MVT::f128 && "Unexpected type!");
+ // Full register, just bitconvert into i128 -- We will lower this into
+ // two i64s in LowerCall_64.
+ NewVA = CCValAssign::getCustomReg(VA.getValNo(), VA.getValVT(),
+ IReg, MVT::i128, CCValAssign::BCvt);
+ }
} else {
// This needs to go to memory, we're out of integer registers.
NewVA = CCValAssign::getMem(VA.getValNo(), VA.getValVT(),
SDLoc DL = CLI.DL;
SDValue Chain = CLI.Chain;
+ // Sparc target does not yet support tail call optimization.
+ CLI.IsTailCall = false;
+
// Analyze operands of the call, assigning locations to each operand.
SmallVector<CCValAssign, 16> ArgLocs;
CCState CCInfo(CLI.CallConv, CLI.IsVarArg, DAG.getMachineFunction(),
Arg = DAG.getNode(ISD::ANY_EXTEND, DL, VA.getLocVT(), Arg);
break;
case CCValAssign::BCvt:
- Arg = DAG.getNode(ISD::BITCAST, DL, VA.getLocVT(), Arg);
+ // fixupVariableFloatArgs() may create bitcasts from f128 to i128. But
+ // SPARC does not support i128 natively. Lower it into two i64, see below.
+ if (!VA.needsCustom() || VA.getValVT() != MVT::f128
+ || VA.getLocVT() != MVT::i128)
+ Arg = DAG.getNode(ISD::BITCAST, DL, VA.getLocVT(), Arg);
break;
}
if (VA.isRegLoc()) {
+ if (VA.needsCustom() && VA.getValVT() == MVT::f128
+ && VA.getLocVT() == MVT::i128) {
+ // Store and reload into the interger register reg and reg+1.
+ unsigned Offset = 8 * (VA.getLocReg() - SP::I0);
+ unsigned StackOffset = Offset + Subtarget->getStackPointerBias() + 128;
+ SDValue StackPtr = DAG.getRegister(SP::O6, getPointerTy());
+ SDValue HiPtrOff = DAG.getIntPtrConstant(StackOffset);
+ HiPtrOff = DAG.getNode(ISD::ADD, DL, getPointerTy(), StackPtr,
+ HiPtrOff);
+ SDValue LoPtrOff = DAG.getIntPtrConstant(StackOffset + 8);
+ LoPtrOff = DAG.getNode(ISD::ADD, DL, getPointerTy(), StackPtr,
+ LoPtrOff);
+
+ // Store to %sp+BIAS+128+Offset
+ SDValue Store = DAG.getStore(Chain, DL, Arg, HiPtrOff,
+ MachinePointerInfo(),
+ false, false, 0);
+ // Load into Reg and Reg+1
+ SDValue Hi64 = DAG.getLoad(MVT::i64, DL, Store, HiPtrOff,
+ MachinePointerInfo(),
+ false, false, false, 0);
+ SDValue Lo64 = DAG.getLoad(MVT::i64, DL, Store, LoPtrOff,
+ MachinePointerInfo(),
+ false, false, false, 0);
+ RegsToPass.push_back(std::make_pair(toCallerWindow(VA.getLocReg()),
+ Hi64));
+ RegsToPass.push_back(std::make_pair(toCallerWindow(VA.getLocReg()+1),
+ Lo64));
+ continue;
+ }
+
// The custom bit on an i32 return value indicates that it should be
// passed in the high bits of the register.
if (VA.getValVT() == MVT::i32 && VA.needsCustom()) {
SmallVector<CCValAssign, 16> RVLocs;
CCState RVInfo(CLI.CallConv, CLI.IsVarArg, DAG.getMachineFunction(),
DAG.getTarget(), RVLocs, *DAG.getContext());
- RVInfo.AnalyzeCallResult(CLI.Ins, CC_Sparc64);
+
+ // Set inreg flag manually for codegen generated library calls that
+ // return float.
+ if (CLI.Ins.size() == 1 && CLI.Ins[0].VT == MVT::f32 && CLI.CS == 0)
+ CLI.Ins[0].Flags.setInReg();
+
+ RVInfo.AnalyzeCallResult(CLI.Ins, RetCC_Sparc64);
// Copy all of the result registers out of their specified physreg.
for (unsigned i = 0; i != RVLocs.size(); ++i) {
setOperationAction(ISD::SDIVREM, MVT::i32, Expand);
setOperationAction(ISD::UDIVREM, MVT::i32, Expand);
+ // ... nor does SparcV9.
+ if (Subtarget->is64Bit()) {
+ setOperationAction(ISD::UREM, MVT::i64, Expand);
+ setOperationAction(ISD::SREM, MVT::i64, Expand);
+ setOperationAction(ISD::SDIVREM, MVT::i64, Expand);
+ setOperationAction(ISD::UDIVREM, MVT::i64, Expand);
+ }
+
// Custom expand fp<->sint
setOperationAction(ISD::FP_TO_SINT, MVT::i32, Custom);
setOperationAction(ISD::SINT_TO_FP, MVT::i32, Custom);
+ setOperationAction(ISD::FP_TO_SINT, MVT::i64, Custom);
+ setOperationAction(ISD::SINT_TO_FP, MVT::i64, Custom);
- // Expand fp<->uint
- setOperationAction(ISD::FP_TO_UINT, MVT::i32, Expand);
- setOperationAction(ISD::UINT_TO_FP, MVT::i32, Expand);
+ // Custom Expand fp<->uint
+ setOperationAction(ISD::FP_TO_UINT, MVT::i32, Custom);
+ setOperationAction(ISD::UINT_TO_FP, MVT::i32, Custom);
+ setOperationAction(ISD::FP_TO_UINT, MVT::i64, Custom);
+ setOperationAction(ISD::UINT_TO_FP, MVT::i64, Custom);
setOperationAction(ISD::BITCAST, MVT::f32, Expand);
setOperationAction(ISD::BITCAST, MVT::i32, Expand);
setOperationAction(ISD::SELECT_CC, MVT::f128, Custom);
if (Subtarget->is64Bit()) {
+ setOperationAction(ISD::ADDC, MVT::i64, Custom);
+ setOperationAction(ISD::ADDE, MVT::i64, Custom);
+ setOperationAction(ISD::SUBC, MVT::i64, Custom);
+ setOperationAction(ISD::SUBE, MVT::i64, Custom);
setOperationAction(ISD::BITCAST, MVT::f64, Expand);
setOperationAction(ISD::BITCAST, MVT::i64, Expand);
setOperationAction(ISD::SELECT, MVT::i64, Expand);
setOperationAction(ISD::SETCC, MVT::i64, Expand);
setOperationAction(ISD::BR_CC, MVT::i64, Custom);
setOperationAction(ISD::SELECT_CC, MVT::i64, Custom);
+
+ if (Subtarget->usePopc())
+ setOperationAction(ISD::CTPOP, MVT::i64, Legal);
+ setOperationAction(ISD::CTTZ , MVT::i64, Expand);
+ setOperationAction(ISD::CTTZ_ZERO_UNDEF, MVT::i64, Expand);
+ setOperationAction(ISD::CTLZ , MVT::i64, Expand);
+ setOperationAction(ISD::CTLZ_ZERO_UNDEF, MVT::i64, Expand);
+ setOperationAction(ISD::BSWAP, MVT::i64, Expand);
+ setOperationAction(ISD::ROTL , MVT::i64, Expand);
+ setOperationAction(ISD::ROTR , MVT::i64, Expand);
+ setOperationAction(ISD::DYNAMIC_STACKALLOC, MVT::i64, Custom);
}
- // FIXME: There are instructions available for ATOMIC_FENCE
- // on SparcV8 and later.
- setOperationAction(ISD::ATOMIC_FENCE, MVT::Other, Expand);
+ // ATOMICs.
+ // FIXME: We insert fences for each atomics and generate sub-optimal code
+ // for PSO/TSO. Also, implement other atomicrmw operations.
+
+ setInsertFencesForAtomic(true);
+
+ setOperationAction(ISD::ATOMIC_SWAP, MVT::i32, Legal);
+ setOperationAction(ISD::ATOMIC_CMP_SWAP, MVT::i32,
+ (Subtarget->isV9() ? Legal: Expand));
+
+
+ setOperationAction(ISD::ATOMIC_FENCE, MVT::Other, Legal);
+
+ // Custom Lower Atomic LOAD/STORE
+ setOperationAction(ISD::ATOMIC_LOAD, MVT::i32, Custom);
+ setOperationAction(ISD::ATOMIC_STORE, MVT::i32, Custom);
+
+ if (Subtarget->is64Bit()) {
+ setOperationAction(ISD::ATOMIC_CMP_SWAP, MVT::i64, Legal);
+ setOperationAction(ISD::ATOMIC_SWAP, MVT::i64, Expand);
+ setOperationAction(ISD::ATOMIC_LOAD, MVT::i64, Custom);
+ setOperationAction(ISD::ATOMIC_STORE, MVT::i64, Custom);
+ }
if (!Subtarget->isV9()) {
// SparcV8 does not have FNEGD and FABSD.
setOperationAction(ISD::UMUL_LOHI, MVT::i32, Expand);
setOperationAction(ISD::SMUL_LOHI, MVT::i32, Expand);
+ if (Subtarget->is64Bit()) {
+ setOperationAction(ISD::UMUL_LOHI, MVT::i64, Expand);
+ setOperationAction(ISD::SMUL_LOHI, MVT::i64, Expand);
+ setOperationAction(ISD::MULHU, MVT::i64, Expand);
+ setOperationAction(ISD::MULHS, MVT::i64, Expand);
+
+ setOperationAction(ISD::UMULO, MVT::i64, Custom);
+ setOperationAction(ISD::SMULO, MVT::i64, Custom);
+ }
+
// VASTART needs to be custom lowered to use the VarArgsFrameIndex.
setOperationAction(ISD::VASTART , MVT::Other, Custom);
// VAARG needs to be lowered to not do unaligned accesses for doubles.
setStackPointerRegisterToSaveRestore(SP::O6);
- if (Subtarget->isV9())
+ if (Subtarget->isV9() && Subtarget->usePopc())
setOperationAction(ISD::CTPOP, MVT::i32, Legal);
if (Subtarget->isV9() && Subtarget->hasHardQuad()) {
setOperationAction(ISD::FNEG, MVT::f128, Custom);
setOperationAction(ISD::FABS, MVT::f128, Custom);
}
+
+ if (!Subtarget->is64Bit()) {
+ setLibcallName(RTLIB::FPTOSINT_F128_I64, "_Q_qtoll");
+ setLibcallName(RTLIB::FPTOUINT_F128_I64, "_Q_qtoull");
+ setLibcallName(RTLIB::SINTTOFP_I64_F128, "_Q_lltoq");
+ setLibcallName(RTLIB::UINTTOFP_I64_F128, "_Q_ulltoq");
+ }
+
} else {
// Custom legalize f128 operations.
setLibcallName(RTLIB::DIV_F128, "_Qp_div");
setLibcallName(RTLIB::SQRT_F128, "_Qp_sqrt");
setLibcallName(RTLIB::FPTOSINT_F128_I32, "_Qp_qtoi");
+ setLibcallName(RTLIB::FPTOUINT_F128_I32, "_Qp_qtoui");
setLibcallName(RTLIB::SINTTOFP_I32_F128, "_Qp_itoq");
+ setLibcallName(RTLIB::UINTTOFP_I32_F128, "_Qp_uitoq");
+ setLibcallName(RTLIB::FPTOSINT_F128_I64, "_Qp_qtox");
+ setLibcallName(RTLIB::FPTOUINT_F128_I64, "_Qp_qtoux");
+ setLibcallName(RTLIB::SINTTOFP_I64_F128, "_Qp_xtoq");
+ setLibcallName(RTLIB::UINTTOFP_I64_F128, "_Qp_uxtoq");
setLibcallName(RTLIB::FPEXT_F32_F128, "_Qp_stoq");
setLibcallName(RTLIB::FPEXT_F64_F128, "_Qp_dtoq");
setLibcallName(RTLIB::FPROUND_F128_F32, "_Qp_qtos");
setLibcallName(RTLIB::DIV_F128, "_Q_div");
setLibcallName(RTLIB::SQRT_F128, "_Q_sqrt");
setLibcallName(RTLIB::FPTOSINT_F128_I32, "_Q_qtoi");
+ setLibcallName(RTLIB::FPTOUINT_F128_I32, "_Q_qtou");
setLibcallName(RTLIB::SINTTOFP_I32_F128, "_Q_itoq");
+ setLibcallName(RTLIB::UINTTOFP_I32_F128, "_Q_utoq");
+ setLibcallName(RTLIB::FPTOSINT_F128_I64, "_Q_qtoll");
+ setLibcallName(RTLIB::FPTOUINT_F128_I64, "_Q_qtoull");
+ setLibcallName(RTLIB::SINTTOFP_I64_F128, "_Q_lltoq");
+ setLibcallName(RTLIB::UINTTOFP_I64_F128, "_Q_ulltoq");
setLibcallName(RTLIB::FPEXT_F32_F128, "_Q_stoq");
setLibcallName(RTLIB::FPEXT_F64_F128, "_Q_dtoq");
setLibcallName(RTLIB::FPROUND_F128_F32, "_Q_qtos");
case SPISD::Lo: return "SPISD::Lo";
case SPISD::FTOI: return "SPISD::FTOI";
case SPISD::ITOF: return "SPISD::ITOF";
+ case SPISD::FTOX: return "SPISD::FTOX";
+ case SPISD::XTOF: return "SPISD::XTOF";
case SPISD::CALL: return "SPISD::CALL";
case SPISD::RET_FLAG: return "SPISD::RET_FLAG";
case SPISD::GLOBAL_BASE_REG: return "SPISD::GLOBAL_BASE_REG";
}
}
+EVT SparcTargetLowering::getSetCCResultType(LLVMContext &, EVT VT) const {
+ if (!VT.isVector())
+ return MVT::i32;
+ return VT.changeVectorElementTypeToInteger();
+}
+
/// isMaskedValueZeroForTargetNode - Return true if 'Op & Mask' is known to
/// be zero. Op is expected to be a target specific node. Used by DAG
/// combiner.
const SparcTargetLowering &TLI,
bool hasHardQuad) {
SDLoc dl(Op);
- // Convert the fp value to integer in an FP register.
- assert(Op.getValueType() == MVT::i32);
+ EVT VT = Op.getValueType();
+ assert(VT == MVT::i32 || VT == MVT::i64);
+
+ // Expand f128 operations to fp128 abi calls.
+ if (Op.getOperand(0).getValueType() == MVT::f128
+ && (!hasHardQuad || !TLI.isTypeLegal(VT))) {
+ const char *libName = TLI.getLibcallName(VT == MVT::i32
+ ? RTLIB::FPTOSINT_F128_I32
+ : RTLIB::FPTOSINT_F128_I64);
+ return TLI.LowerF128Op(Op, DAG, libName, 1);
+ }
- if (Op.getOperand(0).getValueType() == MVT::f128 && !hasHardQuad)
- return TLI.LowerF128Op(Op, DAG,
- TLI.getLibcallName(RTLIB::FPTOSINT_F128_I32), 1);
+ // Expand if the resulting type is illegal.
+ if (!TLI.isTypeLegal(VT))
+ return SDValue(0, 0);
+
+ // Otherwise, Convert the fp value to integer in an FP register.
+ if (VT == MVT::i32)
+ Op = DAG.getNode(SPISD::FTOI, dl, MVT::f32, Op.getOperand(0));
+ else
+ Op = DAG.getNode(SPISD::FTOX, dl, MVT::f64, Op.getOperand(0));
- Op = DAG.getNode(SPISD::FTOI, dl, MVT::f32, Op.getOperand(0));
- return DAG.getNode(ISD::BITCAST, dl, MVT::i32, Op);
+ return DAG.getNode(ISD::BITCAST, dl, VT, Op);
}
static SDValue LowerSINT_TO_FP(SDValue Op, SelectionDAG &DAG,
const SparcTargetLowering &TLI,
bool hasHardQuad) {
SDLoc dl(Op);
- assert(Op.getOperand(0).getValueType() == MVT::i32);
- SDValue Tmp = DAG.getNode(ISD::BITCAST, dl, MVT::f32, Op.getOperand(0));
- // Convert the int value to FP in an FP register.
- if (Op.getValueType() == MVT::f128 && !hasHardQuad)
- return TLI.LowerF128Op(Op, DAG,
- TLI.getLibcallName(RTLIB::SINTTOFP_I32_F128), 1);
- return DAG.getNode(SPISD::ITOF, dl, Op.getValueType(), Tmp);
+ EVT OpVT = Op.getOperand(0).getValueType();
+ assert(OpVT == MVT::i32 || (OpVT == MVT::i64));
+
+ EVT floatVT = (OpVT == MVT::i32) ? MVT::f32 : MVT::f64;
+
+ // Expand f128 operations to fp128 ABI calls.
+ if (Op.getValueType() == MVT::f128
+ && (!hasHardQuad || !TLI.isTypeLegal(OpVT))) {
+ const char *libName = TLI.getLibcallName(OpVT == MVT::i32
+ ? RTLIB::SINTTOFP_I32_F128
+ : RTLIB::SINTTOFP_I64_F128);
+ return TLI.LowerF128Op(Op, DAG, libName, 1);
+ }
+
+ // Expand if the operand type is illegal.
+ if (!TLI.isTypeLegal(OpVT))
+ return SDValue(0, 0);
+
+ // Otherwise, Convert the int value to FP in an FP register.
+ SDValue Tmp = DAG.getNode(ISD::BITCAST, dl, floatVT, Op.getOperand(0));
+ unsigned opcode = (OpVT == MVT::i32)? SPISD::ITOF : SPISD::XTOF;
+ return DAG.getNode(opcode, dl, Op.getValueType(), Tmp);
+}
+
+static SDValue LowerFP_TO_UINT(SDValue Op, SelectionDAG &DAG,
+ const SparcTargetLowering &TLI,
+ bool hasHardQuad) {
+ SDLoc dl(Op);
+ EVT VT = Op.getValueType();
+
+ // Expand if it does not involve f128 or the target has support for
+ // quad floating point instructions and the resulting type is legal.
+ if (Op.getOperand(0).getValueType() != MVT::f128 ||
+ (hasHardQuad && TLI.isTypeLegal(VT)))
+ return SDValue(0, 0);
+
+ assert(VT == MVT::i32 || VT == MVT::i64);
+
+ return TLI.LowerF128Op(Op, DAG,
+ TLI.getLibcallName(VT == MVT::i32
+ ? RTLIB::FPTOUINT_F128_I32
+ : RTLIB::FPTOUINT_F128_I64),
+ 1);
+}
+
+static SDValue LowerUINT_TO_FP(SDValue Op, SelectionDAG &DAG,
+ const SparcTargetLowering &TLI,
+ bool hasHardQuad) {
+ SDLoc dl(Op);
+ EVT OpVT = Op.getOperand(0).getValueType();
+ assert(OpVT == MVT::i32 || OpVT == MVT::i64);
+
+ // Expand if it does not involve f128 or the target has support for
+ // quad floating point instructions and the operand type is legal.
+ if (Op.getValueType() != MVT::f128 || (hasHardQuad && TLI.isTypeLegal(OpVT)))
+ return SDValue(0, 0);
+
+ return TLI.LowerF128Op(Op, DAG,
+ TLI.getLibcallName(OpVT == MVT::i32
+ ? RTLIB::UINTTOFP_I32_F128
+ : RTLIB::UINTTOFP_I64_F128),
+ 1);
}
static SDValue LowerBR_CC(SDValue Op, SelectionDAG &DAG,
std::min(PtrVT.getSizeInBits(), VT.getSizeInBits())/8);
}
-static SDValue LowerDYNAMIC_STACKALLOC(SDValue Op, SelectionDAG &DAG) {
+static SDValue LowerDYNAMIC_STACKALLOC(SDValue Op, SelectionDAG &DAG,
+ const SparcSubtarget *Subtarget) {
SDValue Chain = Op.getOperand(0); // Legalize the chain.
SDValue Size = Op.getOperand(1); // Legalize the size.
+ EVT VT = Size->getValueType(0);
SDLoc dl(Op);
unsigned SPReg = SP::O6;
- SDValue SP = DAG.getCopyFromReg(Chain, dl, SPReg, MVT::i32);
- SDValue NewSP = DAG.getNode(ISD::SUB, dl, MVT::i32, SP, Size); // Value
+ SDValue SP = DAG.getCopyFromReg(Chain, dl, SPReg, VT);
+ SDValue NewSP = DAG.getNode(ISD::SUB, dl, VT, SP, Size); // Value
Chain = DAG.getCopyToReg(SP.getValue(1), dl, SPReg, NewSP); // Output chain
// The resultant pointer is actually 16 words from the bottom of the stack,
// to provide a register spill area.
- SDValue NewVal = DAG.getNode(ISD::ADD, dl, MVT::i32, NewSP,
- DAG.getConstant(96, MVT::i32));
+ unsigned regSpillArea = Subtarget->is64Bit() ? 128 : 96;
+ regSpillArea += Subtarget->getStackPointerBias();
+
+ SDValue NewVal = DAG.getNode(ISD::ADD, dl, VT, NewSP,
+ DAG.getConstant(regSpillArea, VT));
SDValue Ops[2] = { NewVal, Chain };
return DAG.getMergeValues(Ops, 2, dl);
}
return Chain;
}
-static SDValue LowerFRAMEADDR(SDValue Op, SelectionDAG &DAG) {
+static SDValue getFRAMEADDR(uint64_t depth, SDValue Op, SelectionDAG &DAG,
+ const SparcSubtarget *Subtarget) {
MachineFrameInfo *MFI = DAG.getMachineFunction().getFrameInfo();
MFI->setFrameAddressIsTaken(true);
EVT VT = Op.getValueType();
SDLoc dl(Op);
unsigned FrameReg = SP::I6;
-
- uint64_t depth = Op.getConstantOperandVal(0);
+ unsigned stackBias = Subtarget->getStackPointerBias();
SDValue FrameAddr;
- if (depth == 0)
+
+ if (depth == 0) {
FrameAddr = DAG.getCopyFromReg(DAG.getEntryNode(), dl, FrameReg, VT);
- else {
- // flush first to make sure the windowed registers' values are in stack
- SDValue Chain = getFLUSHW(Op, DAG);
- FrameAddr = DAG.getCopyFromReg(Chain, dl, FrameReg, VT);
-
- for (uint64_t i = 0; i != depth; ++i) {
- SDValue Ptr = DAG.getNode(ISD::ADD,
- dl, MVT::i32,
- FrameAddr, DAG.getIntPtrConstant(56));
- FrameAddr = DAG.getLoad(MVT::i32, dl,
- Chain,
- Ptr,
- MachinePointerInfo(), false, false, false, 0);
- }
+ if (Subtarget->is64Bit())
+ FrameAddr = DAG.getNode(ISD::ADD, dl, VT, FrameAddr,
+ DAG.getIntPtrConstant(stackBias));
+ return FrameAddr;
+ }
+
+ // flush first to make sure the windowed registers' values are in stack
+ SDValue Chain = getFLUSHW(Op, DAG);
+ FrameAddr = DAG.getCopyFromReg(Chain, dl, FrameReg, VT);
+
+ unsigned Offset = (Subtarget->is64Bit()) ? (stackBias + 112) : 56;
+
+ while (depth--) {
+ SDValue Ptr = DAG.getNode(ISD::ADD, dl, VT, FrameAddr,
+ DAG.getIntPtrConstant(Offset));
+ FrameAddr = DAG.getLoad(VT, dl, Chain, Ptr, MachinePointerInfo(),
+ false, false, false, 0);
}
+ if (Subtarget->is64Bit())
+ FrameAddr = DAG.getNode(ISD::ADD, dl, VT, FrameAddr,
+ DAG.getIntPtrConstant(stackBias));
return FrameAddr;
}
+
+static SDValue LowerFRAMEADDR(SDValue Op, SelectionDAG &DAG,
+ const SparcSubtarget *Subtarget) {
+
+ uint64_t depth = Op.getConstantOperandVal(0);
+
+ return getFRAMEADDR(depth, Op, DAG, Subtarget);
+
+}
+
static SDValue LowerRETURNADDR(SDValue Op, SelectionDAG &DAG,
- const SparcTargetLowering &TLI) {
+ const SparcTargetLowering &TLI,
+ const SparcSubtarget *Subtarget) {
MachineFunction &MF = DAG.getMachineFunction();
MachineFrameInfo *MFI = MF.getFrameInfo();
MFI->setReturnAddressIsTaken(true);
+ if (TLI.verifyReturnAddressArgumentIsConstant(Op, DAG))
+ return SDValue();
+
EVT VT = Op.getValueType();
SDLoc dl(Op);
uint64_t depth = Op.getConstantOperandVal(0);
unsigned RetReg = MF.addLiveIn(SP::I7,
TLI.getRegClassFor(TLI.getPointerTy()));
RetAddr = DAG.getCopyFromReg(DAG.getEntryNode(), dl, RetReg, VT);
- } else {
- // Need frame address to find return address of the caller.
- MFI->setFrameAddressIsTaken(true);
-
- // flush first to make sure the windowed registers' values are in stack
- SDValue Chain = getFLUSHW(Op, DAG);
- RetAddr = DAG.getCopyFromReg(Chain, dl, SP::I6, VT);
-
- for (uint64_t i = 0; i != depth; ++i) {
- SDValue Ptr = DAG.getNode(ISD::ADD,
- dl, MVT::i32,
- RetAddr,
- DAG.getIntPtrConstant((i == depth-1)?60:56));
- RetAddr = DAG.getLoad(MVT::i32, dl,
- Chain,
- Ptr,
- MachinePointerInfo(), false, false, false, 0);
- }
+ return RetAddr;
}
+
+ // Need frame address to find return address of the caller.
+ SDValue FrameAddr = getFRAMEADDR(depth - 1, Op, DAG, Subtarget);
+
+ unsigned Offset = (Subtarget->is64Bit()) ? 120 : 60;
+ SDValue Ptr = DAG.getNode(ISD::ADD,
+ dl, VT,
+ FrameAddr,
+ DAG.getIntPtrConstant(Offset));
+ RetAddr = DAG.getLoad(VT, dl, DAG.getEntryNode(), Ptr,
+ MachinePointerInfo(), false, false, false, 0);
+
return RetAddr;
}
assert(LdNode && LdNode->getOffset().getOpcode() == ISD::UNDEF
&& "Unexpected node type");
+ unsigned alignment = LdNode->getAlignment();
+ if (alignment > 8)
+ alignment = 8;
+
SDValue Hi64 = DAG.getLoad(MVT::f64,
dl,
LdNode->getChain(),
LdNode->getBasePtr(),
LdNode->getPointerInfo(),
- false, false, false, 8);
+ false, false, false, alignment);
EVT addrVT = LdNode->getBasePtr().getValueType();
SDValue LoPtr = DAG.getNode(ISD::ADD, dl, addrVT,
LdNode->getBasePtr(),
LdNode->getChain(),
LoPtr,
LdNode->getPointerInfo(),
- false, false, false, 8);
+ false, false, false, alignment);
SDValue SubRegEven = DAG.getTargetConstant(SP::sub_even64, MVT::i32);
SDValue SubRegOdd = DAG.getTargetConstant(SP::sub_odd64, MVT::i32);
MVT::f64,
StNode->getValue(),
SubRegOdd);
+
+ unsigned alignment = StNode->getAlignment();
+ if (alignment > 8)
+ alignment = 8;
+
SDValue OutChains[2];
OutChains[0] = DAG.getStore(StNode->getChain(),
dl,
SDValue(Hi64, 0),
StNode->getBasePtr(),
MachinePointerInfo(),
- false, false, 8);
+ false, false, alignment);
EVT addrVT = StNode->getBasePtr().getValueType();
SDValue LoPtr = DAG.getNode(ISD::ADD, dl, addrVT,
StNode->getBasePtr(),
SDValue(Lo64, 0),
LoPtr,
MachinePointerInfo(),
- false, false, 8);
+ false, false, alignment);
return DAG.getNode(ISD::TokenFactor, dl, MVT::Other,
&OutChains[0], 2);
}
return DstReg128;
}
+static SDValue LowerADDC_ADDE_SUBC_SUBE(SDValue Op, SelectionDAG &DAG) {
+
+ if (Op.getValueType() != MVT::i64)
+ return Op;
+
+ SDLoc dl(Op);
+ SDValue Src1 = Op.getOperand(0);
+ SDValue Src1Lo = DAG.getNode(ISD::TRUNCATE, dl, MVT::i32, Src1);
+ SDValue Src1Hi = DAG.getNode(ISD::SRL, dl, MVT::i64, Src1,
+ DAG.getConstant(32, MVT::i64));
+ Src1Hi = DAG.getNode(ISD::TRUNCATE, dl, MVT::i32, Src1Hi);
+
+ SDValue Src2 = Op.getOperand(1);
+ SDValue Src2Lo = DAG.getNode(ISD::TRUNCATE, dl, MVT::i32, Src2);
+ SDValue Src2Hi = DAG.getNode(ISD::SRL, dl, MVT::i64, Src2,
+ DAG.getConstant(32, MVT::i64));
+ Src2Hi = DAG.getNode(ISD::TRUNCATE, dl, MVT::i32, Src2Hi);
+
+
+ bool hasChain = false;
+ unsigned hiOpc = Op.getOpcode();
+ switch (Op.getOpcode()) {
+ default: llvm_unreachable("Invalid opcode");
+ case ISD::ADDC: hiOpc = ISD::ADDE; break;
+ case ISD::ADDE: hasChain = true; break;
+ case ISD::SUBC: hiOpc = ISD::SUBE; break;
+ case ISD::SUBE: hasChain = true; break;
+ }
+ SDValue Lo;
+ SDVTList VTs = DAG.getVTList(MVT::i32, MVT::Glue);
+ if (hasChain) {
+ Lo = DAG.getNode(Op.getOpcode(), dl, VTs, Src1Lo, Src2Lo,
+ Op.getOperand(2));
+ } else {
+ Lo = DAG.getNode(Op.getOpcode(), dl, VTs, Src1Lo, Src2Lo);
+ }
+ SDValue Hi = DAG.getNode(hiOpc, dl, VTs, Src1Hi, Src2Hi, Lo.getValue(1));
+ SDValue Carry = Hi.getValue(1);
+
+ Lo = DAG.getNode(ISD::ZERO_EXTEND, dl, MVT::i64, Lo);
+ Hi = DAG.getNode(ISD::ZERO_EXTEND, dl, MVT::i64, Hi);
+ Hi = DAG.getNode(ISD::SHL, dl, MVT::i64, Hi,
+ DAG.getConstant(32, MVT::i64));
+
+ SDValue Dst = DAG.getNode(ISD::OR, dl, MVT::i64, Hi, Lo);
+ SDValue Ops[2] = { Dst, Carry };
+ return DAG.getMergeValues(Ops, 2, dl);
+}
+
+// Custom lower UMULO/SMULO for SPARC. This code is similar to ExpandNode()
+// in LegalizeDAG.cpp except the order of arguments to the library function.
+static SDValue LowerUMULO_SMULO(SDValue Op, SelectionDAG &DAG,
+ const SparcTargetLowering &TLI)
+{
+ unsigned opcode = Op.getOpcode();
+ assert((opcode == ISD::UMULO || opcode == ISD::SMULO) && "Invalid Opcode.");
+
+ bool isSigned = (opcode == ISD::SMULO);
+ EVT VT = MVT::i64;
+ EVT WideVT = MVT::i128;
+ SDLoc dl(Op);
+ SDValue LHS = Op.getOperand(0);
+
+ if (LHS.getValueType() != VT)
+ return Op;
+
+ SDValue ShiftAmt = DAG.getConstant(63, VT);
+
+ SDValue RHS = Op.getOperand(1);
+ SDValue HiLHS = DAG.getNode(ISD::SRA, dl, VT, LHS, ShiftAmt);
+ SDValue HiRHS = DAG.getNode(ISD::SRA, dl, MVT::i64, RHS, ShiftAmt);
+ SDValue Args[] = { HiLHS, LHS, HiRHS, RHS };
+
+ SDValue MulResult = TLI.makeLibCall(DAG,
+ RTLIB::MUL_I128, WideVT,
+ Args, 4, isSigned, dl).first;
+ SDValue BottomHalf = DAG.getNode(ISD::EXTRACT_ELEMENT, dl, VT,
+ MulResult, DAG.getIntPtrConstant(0));
+ SDValue TopHalf = DAG.getNode(ISD::EXTRACT_ELEMENT, dl, VT,
+ MulResult, DAG.getIntPtrConstant(1));
+ if (isSigned) {
+ SDValue Tmp1 = DAG.getNode(ISD::SRA, dl, VT, BottomHalf, ShiftAmt);
+ TopHalf = DAG.getSetCC(dl, MVT::i32, TopHalf, Tmp1, ISD::SETNE);
+ } else {
+ TopHalf = DAG.getSetCC(dl, MVT::i32, TopHalf, DAG.getConstant(0, VT),
+ ISD::SETNE);
+ }
+ // MulResult is a node with an illegal type. Because such things are not
+ // generally permitted during this phase of legalization, delete the
+ // node. The above EXTRACT_ELEMENT nodes should have been folded.
+ DAG.DeleteNode(MulResult.getNode());
+
+ SDValue Ops[2] = { BottomHalf, TopHalf } ;
+ return DAG.getMergeValues(Ops, 2, dl);
+}
+
+static SDValue LowerATOMIC_LOAD_STORE(SDValue Op, SelectionDAG &DAG) {
+ // Monotonic load/stores are legal.
+ if (cast<AtomicSDNode>(Op)->getOrdering() <= Monotonic)
+ return Op;
+
+ // Otherwise, expand with a fence.
+ return SDValue();
+}
SDValue SparcTargetLowering::
switch (Op.getOpcode()) {
default: llvm_unreachable("Should not custom lower this!");
- case ISD::RETURNADDR: return LowerRETURNADDR(Op, DAG, *this);
- case ISD::FRAMEADDR: return LowerFRAMEADDR(Op, DAG);
+ case ISD::RETURNADDR: return LowerRETURNADDR(Op, DAG, *this,
+ Subtarget);
+ case ISD::FRAMEADDR: return LowerFRAMEADDR(Op, DAG,
+ Subtarget);
case ISD::GlobalTLSAddress: return LowerGlobalTLSAddress(Op, DAG);
case ISD::GlobalAddress: return LowerGlobalAddress(Op, DAG);
case ISD::BlockAddress: return LowerBlockAddress(Op, DAG);
hasHardQuad);
case ISD::SINT_TO_FP: return LowerSINT_TO_FP(Op, DAG, *this,
hasHardQuad);
+ case ISD::FP_TO_UINT: return LowerFP_TO_UINT(Op, DAG, *this,
+ hasHardQuad);
+ case ISD::UINT_TO_FP: return LowerUINT_TO_FP(Op, DAG, *this,
+ hasHardQuad);
case ISD::BR_CC: return LowerBR_CC(Op, DAG, *this,
hasHardQuad);
case ISD::SELECT_CC: return LowerSELECT_CC(Op, DAG, *this,
hasHardQuad);
case ISD::VASTART: return LowerVASTART(Op, DAG, *this);
case ISD::VAARG: return LowerVAARG(Op, DAG);
- case ISD::DYNAMIC_STACKALLOC: return LowerDYNAMIC_STACKALLOC(Op, DAG);
+ case ISD::DYNAMIC_STACKALLOC: return LowerDYNAMIC_STACKALLOC(Op, DAG,
+ Subtarget);
case ISD::LOAD: return LowerF128Load(Op, DAG);
case ISD::STORE: return LowerF128Store(Op, DAG);
case ISD::FABS: return LowerFABS(Op, DAG, isV9);
case ISD::FP_EXTEND: return LowerF128_FPEXTEND(Op, DAG, *this);
case ISD::FP_ROUND: return LowerF128_FPROUND(Op, DAG, *this);
+ case ISD::ADDC:
+ case ISD::ADDE:
+ case ISD::SUBC:
+ case ISD::SUBE: return LowerADDC_ADDE_SUBC_SUBE(Op, DAG);
+ case ISD::UMULO:
+ case ISD::SMULO: return LowerUMULO_SMULO(Op, DAG, *this);
+ case ISD::ATOMIC_LOAD:
+ case ISD::ATOMIC_STORE: return LowerATOMIC_LOAD_STORE(Op, DAG);
}
}
MachineBasicBlock *
SparcTargetLowering::EmitInstrWithCustomInserter(MachineInstr *MI,
MachineBasicBlock *BB) const {
- const TargetInstrInfo &TII = *getTargetMachine().getInstrInfo();
- unsigned BROpcode;
- unsigned CC;
- DebugLoc dl = MI->getDebugLoc();
- // Figure out the conditional branch opcode to use for this select_cc.
switch (MI->getOpcode()) {
default: llvm_unreachable("Unknown SELECT_CC!");
case SP::SELECT_CC_Int_ICC:
case SP::SELECT_CC_FP_ICC:
case SP::SELECT_CC_DFP_ICC:
case SP::SELECT_CC_QFP_ICC:
- BROpcode = SP::BCOND;
- break;
+ return expandSelectCC(MI, BB, SP::BCOND);
case SP::SELECT_CC_Int_FCC:
case SP::SELECT_CC_FP_FCC:
case SP::SELECT_CC_DFP_FCC:
case SP::SELECT_CC_QFP_FCC:
- BROpcode = SP::FBCOND;
- break;
+ return expandSelectCC(MI, BB, SP::FBCOND);
+
+ case SP::ATOMIC_LOAD_ADD_32:
+ return expandAtomicRMW(MI, BB, SP::ADDrr);
+ case SP::ATOMIC_LOAD_ADD_64:
+ return expandAtomicRMW(MI, BB, SP::ADDXrr);
+ case SP::ATOMIC_LOAD_SUB_32:
+ return expandAtomicRMW(MI, BB, SP::SUBrr);
+ case SP::ATOMIC_LOAD_SUB_64:
+ return expandAtomicRMW(MI, BB, SP::SUBXrr);
+ case SP::ATOMIC_LOAD_AND_32:
+ return expandAtomicRMW(MI, BB, SP::ANDrr);
+ case SP::ATOMIC_LOAD_AND_64:
+ return expandAtomicRMW(MI, BB, SP::ANDXrr);
+ case SP::ATOMIC_LOAD_OR_32:
+ return expandAtomicRMW(MI, BB, SP::ORrr);
+ case SP::ATOMIC_LOAD_OR_64:
+ return expandAtomicRMW(MI, BB, SP::ORXrr);
+ case SP::ATOMIC_LOAD_XOR_32:
+ return expandAtomicRMW(MI, BB, SP::XORrr);
+ case SP::ATOMIC_LOAD_XOR_64:
+ return expandAtomicRMW(MI, BB, SP::XORXrr);
+ case SP::ATOMIC_LOAD_NAND_32:
+ return expandAtomicRMW(MI, BB, SP::ANDrr);
+ case SP::ATOMIC_LOAD_NAND_64:
+ return expandAtomicRMW(MI, BB, SP::ANDXrr);
+
+ case SP::ATOMIC_LOAD_MAX_32:
+ return expandAtomicRMW(MI, BB, SP::MOVICCrr, SPCC::ICC_G);
+ case SP::ATOMIC_LOAD_MAX_64:
+ return expandAtomicRMW(MI, BB, SP::MOVXCCrr, SPCC::ICC_G);
+ case SP::ATOMIC_LOAD_MIN_32:
+ return expandAtomicRMW(MI, BB, SP::MOVICCrr, SPCC::ICC_LE);
+ case SP::ATOMIC_LOAD_MIN_64:
+ return expandAtomicRMW(MI, BB, SP::MOVXCCrr, SPCC::ICC_LE);
+ case SP::ATOMIC_LOAD_UMAX_32:
+ return expandAtomicRMW(MI, BB, SP::MOVICCrr, SPCC::ICC_GU);
+ case SP::ATOMIC_LOAD_UMAX_64:
+ return expandAtomicRMW(MI, BB, SP::MOVXCCrr, SPCC::ICC_GU);
+ case SP::ATOMIC_LOAD_UMIN_32:
+ return expandAtomicRMW(MI, BB, SP::MOVICCrr, SPCC::ICC_LEU);
+ case SP::ATOMIC_LOAD_UMIN_64:
+ return expandAtomicRMW(MI, BB, SP::MOVXCCrr, SPCC::ICC_LEU);
}
+}
- CC = (SPCC::CondCodes)MI->getOperand(3).getImm();
+MachineBasicBlock*
+SparcTargetLowering::expandSelectCC(MachineInstr *MI,
+ MachineBasicBlock *BB,
+ unsigned BROpcode) const {
+ const TargetInstrInfo &TII = *getTargetMachine().getInstrInfo();
+ DebugLoc dl = MI->getDebugLoc();
+ unsigned CC = (SPCC::CondCodes)MI->getOperand(3).getImm();
// To "insert" a SELECT_CC instruction, we actually have to insert the diamond
// control-flow pattern. The incoming instruction knows the destination vreg
return BB;
}
+MachineBasicBlock*
+SparcTargetLowering::expandAtomicRMW(MachineInstr *MI,
+ MachineBasicBlock *MBB,
+ unsigned Opcode,
+ unsigned CondCode) const {
+ const TargetInstrInfo &TII = *getTargetMachine().getInstrInfo();
+ MachineRegisterInfo &MRI = MBB->getParent()->getRegInfo();
+ DebugLoc DL = MI->getDebugLoc();
+
+ // MI is an atomic read-modify-write instruction of the form:
+ //
+ // rd = atomicrmw<op> addr, rs2
+ //
+ // All three operands are registers.
+ unsigned DestReg = MI->getOperand(0).getReg();
+ unsigned AddrReg = MI->getOperand(1).getReg();
+ unsigned Rs2Reg = MI->getOperand(2).getReg();
+
+ // SelectionDAG has already inserted memory barriers before and after MI, so
+ // we simply have to implement the operatiuon in terms of compare-and-swap.
+ //
+ // %val0 = load %addr
+ // loop:
+ // %val = phi %val0, %dest
+ // %upd = op %val, %rs2
+ // %dest = cas %addr, %val, %upd
+ // cmp %val, %dest
+ // bne loop
+ // done:
+ //
+ bool is64Bit = SP::I64RegsRegClass.hasSubClassEq(MRI.getRegClass(DestReg));
+ const TargetRegisterClass *ValueRC =
+ is64Bit ? &SP::I64RegsRegClass : &SP::IntRegsRegClass;
+ unsigned Val0Reg = MRI.createVirtualRegister(ValueRC);
+
+ BuildMI(*MBB, MI, DL, TII.get(is64Bit ? SP::LDXri : SP::LDri), Val0Reg)
+ .addReg(AddrReg).addImm(0);
+
+ // Split the basic block MBB before MI and insert the loop block in the hole.
+ MachineFunction::iterator MFI = MBB;
+ const BasicBlock *LLVM_BB = MBB->getBasicBlock();
+ MachineFunction *MF = MBB->getParent();
+ MachineBasicBlock *LoopMBB = MF->CreateMachineBasicBlock(LLVM_BB);
+ MachineBasicBlock *DoneMBB = MF->CreateMachineBasicBlock(LLVM_BB);
+ ++MFI;
+ MF->insert(MFI, LoopMBB);
+ MF->insert(MFI, DoneMBB);
+
+ // Move MI and following instructions to DoneMBB.
+ DoneMBB->splice(DoneMBB->begin(), MBB, MI, MBB->end());
+ DoneMBB->transferSuccessorsAndUpdatePHIs(MBB);
+
+ // Connect the CFG again.
+ MBB->addSuccessor(LoopMBB);
+ LoopMBB->addSuccessor(LoopMBB);
+ LoopMBB->addSuccessor(DoneMBB);
+
+ // Build the loop block.
+ unsigned ValReg = MRI.createVirtualRegister(ValueRC);
+ unsigned UpdReg = MRI.createVirtualRegister(ValueRC);
+
+ BuildMI(LoopMBB, DL, TII.get(SP::PHI), ValReg)
+ .addReg(Val0Reg).addMBB(MBB)
+ .addReg(DestReg).addMBB(LoopMBB);
+
+ if (CondCode) {
+ // This is one of the min/max operations. We need a CMPrr followed by a
+ // MOVXCC/MOVICC.
+ BuildMI(LoopMBB, DL, TII.get(SP::CMPrr)).addReg(ValReg).addReg(Rs2Reg);
+ BuildMI(LoopMBB, DL, TII.get(Opcode), UpdReg)
+ .addReg(ValReg).addReg(Rs2Reg).addImm(CondCode);
+ } else {
+ BuildMI(LoopMBB, DL, TII.get(Opcode), UpdReg)
+ .addReg(ValReg).addReg(Rs2Reg);
+ }
+
+ if (MI->getOpcode() == SP::ATOMIC_LOAD_NAND_32 ||
+ MI->getOpcode() == SP::ATOMIC_LOAD_NAND_64) {
+ unsigned TmpReg = UpdReg;
+ UpdReg = MRI.createVirtualRegister(ValueRC);
+ BuildMI(LoopMBB, DL, TII.get(SP::XORri), UpdReg).addReg(TmpReg).addImm(-1);
+ }
+
+ BuildMI(LoopMBB, DL, TII.get(is64Bit ? SP::CASXrr : SP::CASrr), DestReg)
+ .addReg(AddrReg).addReg(ValReg).addReg(UpdReg)
+ .setMemRefs(MI->memoperands_begin(), MI->memoperands_end());
+ BuildMI(LoopMBB, DL, TII.get(SP::CMPrr)).addReg(ValReg).addReg(DestReg);
+ BuildMI(LoopMBB, DL, TII.get(is64Bit ? SP::BPXCC : SP::BCOND))
+ .addMBB(LoopMBB).addImm(SPCC::ICC_NE);
+
+ MI->eraseFromParent();
+ return DoneMBB;
+}
+
//===----------------------------------------------------------------------===//
// Sparc Inline Assembly Support
//===----------------------------------------------------------------------===//
switch (Constraint[0]) {
default: break;
case 'r': return C_RegisterClass;
+ case 'I': // SIMM13
+ return C_Other;
}
}
return TargetLowering::getConstraintType(Constraint);
}
+TargetLowering::ConstraintWeight SparcTargetLowering::
+getSingleConstraintMatchWeight(AsmOperandInfo &info,
+ const char *constraint) const {
+ ConstraintWeight weight = CW_Invalid;
+ Value *CallOperandVal = info.CallOperandVal;
+ // If we don't have a value, we can't do a match,
+ // but allow it at the lowest weight.
+ if (CallOperandVal == NULL)
+ return CW_Default;
+
+ // Look at the constraint type.
+ switch (*constraint) {
+ default:
+ weight = TargetLowering::getSingleConstraintMatchWeight(info, constraint);
+ break;
+ case 'I': // SIMM13
+ if (ConstantInt *C = dyn_cast<ConstantInt>(info.CallOperandVal)) {
+ if (isInt<13>(C->getSExtValue()))
+ weight = CW_Constant;
+ }
+ break;
+ }
+ return weight;
+}
+
+/// LowerAsmOperandForConstraint - Lower the specified operand into the Ops
+/// vector. If it is invalid, don't add anything to Ops.
+void SparcTargetLowering::
+LowerAsmOperandForConstraint(SDValue Op,
+ std::string &Constraint,
+ std::vector<SDValue> &Ops,
+ SelectionDAG &DAG) const {
+ SDValue Result(0, 0);
+
+ // Only support length 1 constraints for now.
+ if (Constraint.length() > 1)
+ return;
+
+ char ConstraintLetter = Constraint[0];
+ switch (ConstraintLetter) {
+ default: break;
+ case 'I':
+ if (ConstantSDNode *C = dyn_cast<ConstantSDNode>(Op)) {
+ if (isInt<13>(C->getSExtValue())) {
+ Result = DAG.getTargetConstant(C->getSExtValue(), Op.getValueType());
+ break;
+ }
+ return;
+ }
+ }
+
+ if (Result.getNode()) {
+ Ops.push_back(Result);
+ return;
+ }
+ TargetLowering::LowerAsmOperandForConstraint(Op, Constraint, Ops, DAG);
+}
+
std::pair<unsigned, const TargetRegisterClass*>
SparcTargetLowering::getRegForInlineAsmConstraint(const std::string &Constraint,
MVT VT) const {
case 'r':
return std::make_pair(0U, &SP::IntRegsRegClass);
}
+ } else if (!Constraint.empty() && Constraint.size() <= 5
+ && Constraint[0] == '{' && *(Constraint.end()-1) == '}') {
+ // constraint = '{r<d>}'
+ // Remove the braces from around the name.
+ StringRef name(Constraint.data()+1, Constraint.size()-2);
+ // Handle register aliases:
+ // r0-r7 -> g0-g7
+ // r8-r15 -> o0-o7
+ // r16-r23 -> l0-l7
+ // r24-r31 -> i0-i7
+ uint64_t intVal = 0;
+ if (name.substr(0, 1).equals("r")
+ && !name.substr(1).getAsInteger(10, intVal) && intVal <= 31) {
+ const char regTypes[] = { 'g', 'o', 'l', 'i' };
+ char regType = regTypes[intVal/8];
+ char regIdx = '0' + (intVal % 8);
+ char tmp[] = { '{', regType, regIdx, '}', 0 };
+ std::string newConstraint = std::string(tmp);
+ return TargetLowering::getRegForInlineAsmConstraint(newConstraint, VT);
+ }
}
return TargetLowering::getRegForInlineAsmConstraint(Constraint, VT);
// The Sparc target isn't yet aware of offsets.
return false;
}
+
+void SparcTargetLowering::ReplaceNodeResults(SDNode *N,
+ SmallVectorImpl<SDValue>& Results,
+ SelectionDAG &DAG) const {
+
+ SDLoc dl(N);
+
+ RTLIB::Libcall libCall = RTLIB::UNKNOWN_LIBCALL;
+
+ switch (N->getOpcode()) {
+ default:
+ llvm_unreachable("Do not know how to custom type legalize this operation!");
+
+ case ISD::FP_TO_SINT:
+ case ISD::FP_TO_UINT:
+ // Custom lower only if it involves f128 or i64.
+ if (N->getOperand(0).getValueType() != MVT::f128
+ || N->getValueType(0) != MVT::i64)
+ return;
+ libCall = ((N->getOpcode() == ISD::FP_TO_SINT)
+ ? RTLIB::FPTOSINT_F128_I64
+ : RTLIB::FPTOUINT_F128_I64);
+
+ Results.push_back(LowerF128Op(SDValue(N, 0),
+ DAG,
+ getLibcallName(libCall),
+ 1));
+ return;
+
+ case ISD::SINT_TO_FP:
+ case ISD::UINT_TO_FP:
+ // Custom lower only if it involves f128 or i64.
+ if (N->getValueType(0) != MVT::f128
+ || N->getOperand(0).getValueType() != MVT::i64)
+ return;
+
+ libCall = ((N->getOpcode() == ISD::SINT_TO_FP)
+ ? RTLIB::SINTTOFP_I64_F128
+ : RTLIB::UINTTOFP_I64_F128);
+
+ Results.push_back(LowerF128Op(SDValue(N, 0),
+ DAG,
+ getLibcallName(libCall),
+ 1));
+ return;
+ }
+}
projects / oota-llvm.git / blobdiff