#include "PowerPC.h"
#include "PPC32TargetMachine.h"
#include "PPC32ISelLowering.h"
+#include "llvm/CodeGen/MachineConstantPool.h"
#include "llvm/CodeGen/MachineInstrBuilder.h"
#include "llvm/CodeGen/MachineFunction.h"
#include "llvm/CodeGen/SSARegMap.h"
#include "llvm/CodeGen/SelectionDAGISel.h"
#include "llvm/Target/TargetOptions.h"
#include "llvm/ADT/Statistic.h"
+#include "llvm/Constants.h"
#include "llvm/GlobalValue.h"
#include "llvm/Support/Debug.h"
#include "llvm/Support/MathExtras.h"
// look for the first zero bit after the run of ones
ME = CountLeadingZeros_32((Val - 1) ^ Val);
return true;
- } else if (isShiftedMask_32(Val = ~Val)) { // invert mask
- // effectively look for the first zero bit
- ME = CountLeadingZeros_32(Val) - 1;
- // effectively look for the first one bit after the run of zeros
- MB = CountLeadingZeros_32((Val - 1) ^ Val) + 1;
- return true;
+ } else {
+ Val = ~Val; // invert mask
+ if (isShiftedMask_32(Val)) {
+ // effectively look for the first zero bit
+ ME = CountLeadingZeros_32(Val) - 1;
+ // effectively look for the first one bit after the run of zeros
+ MB = CountLeadingZeros_32((Val - 1) ^ Val) + 1;
+ return true;
+ }
}
// no run present
return false;
if (Addr.getOpcode() == ISD::ADD) {
if (isIntImmediate(Addr.getOperand(1), imm) && isInt16(imm)) {
Op1 = getI32Imm(Lo16(imm));
- if (isa<FrameIndexSDNode>(Addr.getOperand(0))) {
+ if (FrameIndexSDNode *FI =
+ dyn_cast<FrameIndexSDNode>(Addr.getOperand(0))) {
++FrameOff;
- Op2 = Addr.getOperand(0);
+ Op2 = CurDAG->getTargetFrameIndex(FI->getIndex(), MVT::i32);
} else {
Op2 = Select(Addr.getOperand(0));
}
Op2 = CurDAG->getTargetNode(PPC::LIS, MVT::i32, Op1);
return false;
}
- } else if (isa<FrameIndexSDNode>(Addr)) {
+ } else if (FrameIndexSDNode *FI = dyn_cast<FrameIndexSDNode>(Addr)) {
Op1 = getI32Imm(0);
- Op2 = Addr;
+ Op2 = CurDAG->getTargetFrameIndex(FI->getIndex(), MVT::i32);
return false;
} else if (ConstantPoolSDNode *CP = dyn_cast<ConstantPoolSDNode>(Addr)) {
Op1 = Addr;
std::cerr << "\n";
abort();
case ISD::EntryToken: // These leaves remain the same.
- case ISD::UNDEF:
return Op;
case ISD::TokenFactor: {
SDOperand New;
}
break;
}
+ case ISD::ConstantFP: { // FIXME: this should get sucked into the legalizer
+ MachineConstantPool *CP = CurDAG->getMachineFunction().getConstantPool();
+ Constant *CFP = ConstantFP::get(Type::FloatTy,
+ cast<ConstantFPSDNode>(N)->getValue());
+ SDOperand CPN = CurDAG->getConstantPool(CP->getConstantPoolIndex(CFP),
+ MVT::i32);
+ SDOperand Tmp;
+ if (PICEnabled)
+ Tmp = CurDAG->getTargetNode(PPC::ADDIS, MVT::i32, getGlobalBaseReg(),CPN);
+ else
+ Tmp = CurDAG->getTargetNode(PPC::LIS, MVT::i32, CPN);
+ CurDAG->SelectNodeTo(N, N->getValueType(0), PPC::LFS, CPN, Tmp);
+ break;
+ }
+ case ISD::UNDEF:
+ if (N->getValueType(0) == MVT::i32)
+ CurDAG->SelectNodeTo(N, MVT::i32, PPC::IMPLICIT_DEF_GPR);
+ else
+ CurDAG->SelectNodeTo(N, N->getValueType(0), PPC::IMPLICIT_DEF_FP);
+ break;
+ case ISD::FrameIndex: {
+ int FI = cast<FrameIndexSDNode>(N)->getIndex();
+ CurDAG->SelectNodeTo(N, MVT::i32, PPC::ADDI,
+ CurDAG->getTargetFrameIndex(FI, MVT::i32),
+ getI32Imm(0));
+ break;
+ }
+ case ISD::ConstantPool: {
+ unsigned CPIIdx = cast<ConstantPoolSDNode>(N)->getIndex();
+ SDOperand Tmp, CPI = CurDAG->getTargetConstantPool(CPIIdx, MVT::i32);
+ if (PICEnabled)
+ Tmp = CurDAG->getTargetNode(PPC::ADDIS, MVT::i32, getGlobalBaseReg(),CPI);
+ else
+ Tmp = CurDAG->getTargetNode(PPC::LIS, MVT::i32, CPI);
+ CurDAG->SelectNodeTo(N, MVT::i32, PPC::LA, Tmp, CPI);
+ break;
+ }
case ISD::GlobalAddress: {
GlobalValue *GV = cast<GlobalAddressSDNode>(N)->getGlobal();
SDOperand Tmp;
case MVT::f32: Opc = PPC::FMULS; break;
case MVT::f64: Opc = PPC::FMUL; break;
}
- CurDAG->SelectNodeTo(N, N->getValueType(0), Opc, Select(N->getOperand(0)),
+ CurDAG->SelectNodeTo(N, MVT::i32, Opc, Select(N->getOperand(0)),
Select(N->getOperand(1)));
break;
}
+ case ISD::SDIV: {
+ unsigned Imm;
+ if (isIntImmediate(N->getOperand(1), Imm)) {
+ if ((signed)Imm > 0 && isPowerOf2_32(Imm)) {
+ SDOperand Op =
+ CurDAG->getTargetNode(PPC::SRAWI, MVT::i32, MVT::Flag,
+ Select(N->getOperand(0)),
+ getI32Imm(Log2_32(Imm)));
+ CurDAG->SelectNodeTo(N, MVT::i32, PPC::ADDZE,
+ Op.getValue(0), Op.getValue(1));
+ break;
+ } else if ((signed)Imm < 0 && isPowerOf2_32(-Imm)) {
+ SDOperand Op =
+ CurDAG->getTargetNode(PPC::SRAWI, MVT::Flag, MVT::i32,
+ Select(N->getOperand(0)),
+ getI32Imm(Log2_32(-Imm)));
+ SDOperand PT =
+ CurDAG->getTargetNode(PPC::ADDZE, MVT::i32, Op.getValue(1),
+ Op.getValue(0));
+ CurDAG->SelectNodeTo(N, MVT::i32, PPC::NEG, PT);
+ break;
+ }
+ }
+ assert(0 && "SDIV not implemented yet!");
+ abort();
+ }
case ISD::MULHS:
assert(N->getValueType(0) == MVT::i32);
CurDAG->SelectNodeTo(N, MVT::i32, PPC::MULHW, Select(N->getOperand(0)),
case MVT::i16: Opc = isIdx ? PPC::STHX : PPC::STH; break;
}
}
-
+
CurDAG->SelectNodeTo(N, MVT::Other, Opc, Select(N->getOperand(1)),
AddrOp1, AddrOp2, Select(N->getOperand(0)));
break;
unsigned Amt = cast<ConstantSDNode>(N->getOperand(1))->getValue();
unsigned Opc = N->getOpcode() == ISD::CALLSEQ_START ?
PPC::ADJCALLSTACKDOWN : PPC::ADJCALLSTACKUP;
- CurDAG->SelectNodeTo(N, MVT::Other, Opc, Select(N->getOperand(0)),
- getI32Imm(Amt));
+ CurDAG->SelectNodeTo(N, MVT::Other, Opc,
+ getI32Imm(Amt), Select(N->getOperand(0)));
break;
}
+ case ISD::CALL:
+ case ISD::TAILCALL: {
+ SDOperand Chain = Select(N->getOperand(0));
+
+ unsigned CallOpcode;
+ std::vector<SDOperand> CallOperands;
+
+ if (GlobalAddressSDNode *GASD =
+ dyn_cast<GlobalAddressSDNode>(N->getOperand(1))) {
+ CallOpcode = PPC::CALLpcrel;
+ CallOperands.push_back(CurDAG->getTargetGlobalAddress(GASD->getGlobal(),
+ MVT::i32));
+ } else if (ExternalSymbolSDNode *ESSDN =
+ dyn_cast<ExternalSymbolSDNode>(N->getOperand(1))) {
+ CallOpcode = PPC::CALLpcrel;
+ CallOperands.push_back(N->getOperand(1));
+ } else {
+ // Copy the callee address into the CTR register.
+ SDOperand Callee = Select(N->getOperand(1));
+ Chain = CurDAG->getTargetNode(PPC::MTCTR, MVT::Other, Callee, Chain);
+
+ // Copy the callee address into R12 on darwin.
+ SDOperand R12 = CurDAG->getRegister(PPC::R12, MVT::i32);
+ Chain = CurDAG->getNode(ISD::CopyToReg, MVT::Other, R12, Callee, Chain);
+
+ CallOperands.push_back(getI32Imm(20)); // Information to encode indcall
+ CallOperands.push_back(getI32Imm(0)); // Information to encode indcall
+ CallOperands.push_back(R12);
+ CallOpcode = PPC::CALLindirect;
+ }
+
+ unsigned GPR_idx = 0, FPR_idx = 0;
+ static const unsigned GPR[] = {
+ PPC::R3, PPC::R4, PPC::R5, PPC::R6,
+ PPC::R7, PPC::R8, PPC::R9, PPC::R10,
+ };
+ static const unsigned FPR[] = {
+ PPC::F1, PPC::F2, PPC::F3, PPC::F4, PPC::F5, PPC::F6, PPC::F7,
+ PPC::F8, PPC::F9, PPC::F10, PPC::F11, PPC::F12, PPC::F13
+ };
+
+ for (unsigned i = 2, e = N->getNumOperands(); i != e; ++i)
+ if (N->getOperand(i).getOpcode() != ISD::UNDEF) {
+ unsigned DestReg = 0;
+ MVT::ValueType RegTy;
+ if (N->getOperand(i).getValueType() == MVT::i32) {
+ assert(GPR_idx < 8 && "Too many int args");
+ DestReg = GPR[GPR_idx++];
+ RegTy = MVT::i32;
+ } else {
+ assert(MVT::isFloatingPoint(N->getOperand(i).getValueType()) &&
+ "Unpromoted integer arg?");
+ assert(FPR_idx < 13 && "Too many fp args");
+ DestReg = FPR[FPR_idx++];
+ RegTy = MVT::f64; // Even if this is really f32!
+ }
+
+ SDOperand Reg = CurDAG->getRegister(DestReg, RegTy);
+ Chain = CurDAG->getNode(ISD::CopyToReg, MVT::Other, Chain, Reg,
+ Select(N->getOperand(i)));
+ CallOperands.push_back(Reg);
+ }
+
+ // Finally, once everything is in registers to pass to the call, emit the
+ // call itself.
+ CallOperands.push_back(Chain);
+ Chain = CurDAG->getTargetNode(CallOpcode, MVT::Other, CallOperands);
+
+ std::vector<SDOperand> CallResults;
+
+ // If the call has results, copy the values out of the ret val registers.
+ switch (N->getValueType(0)) {
+ default: assert(0 && "Unexpected ret value!");
+ case MVT::Other: break;
+ case MVT::i32:
+ if (N->getValueType(1) == MVT::i32) {
+ Chain = CurDAG->getCopyFromReg(Chain, PPC::R4, MVT::i32).getValue(1);
+ CallResults.push_back(Chain.getValue(0));
+ Chain = CurDAG->getCopyFromReg(Chain, PPC::R3, MVT::i32).getValue(1);
+ CallResults.push_back(Chain.getValue(0));
+ } else {
+ Chain = CurDAG->getCopyFromReg(Chain, PPC::R3, MVT::i32).getValue(1);
+ CallResults.push_back(Chain.getValue(0));
+ }
+ break;
+ case MVT::f32:
+ case MVT::f64:
+ Chain = CurDAG->getCopyFromReg(Chain, PPC::F1, MVT::f64).getValue(1);
+ CallResults.push_back(Chain.getValue(0));
+ break;
+ }
+
+ CallResults.push_back(Chain);
+ CurDAG->ReplaceAllUsesWith(N, CallResults);
+ return CallResults[Op.ResNo];
+ }
case ISD::RET: {
SDOperand Chain = Select(N->getOperand(0)); // Token chain.
CurDAG->SelectNodeTo(N, MVT::Other, PPC::BLR, Chain);
break;
}
-
+ case ISD::BR:
+ CurDAG->SelectNodeTo(N, MVT::Other, PPC::B, N->getOperand(1),
+ Select(N->getOperand(0)));
+ break;
case ISD::BR_CC:
case ISD::BRTWOWAY_CC: {
SDOperand Chain = Select(N->getOperand(0));
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