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path: root/lib/Target/ARM/ARMISelLowering.cpp
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Diffstat (limited to 'lib/Target/ARM/ARMISelLowering.cpp')
-rw-r--r--lib/Target/ARM/ARMISelLowering.cpp188
1 files changed, 145 insertions, 43 deletions
diff --git a/lib/Target/ARM/ARMISelLowering.cpp b/lib/Target/ARM/ARMISelLowering.cpp
index 614e684..6a2c6bb 100644
--- a/lib/Target/ARM/ARMISelLowering.cpp
+++ b/lib/Target/ARM/ARMISelLowering.cpp
@@ -294,6 +294,7 @@ ARMTargetLowering::ARMTargetLowering(TargetMachine &TM)
setTargetDAGCombine(ISD::SIGN_EXTEND);
setTargetDAGCombine(ISD::ZERO_EXTEND);
setTargetDAGCombine(ISD::ANY_EXTEND);
+ setTargetDAGCombine(ISD::SELECT_CC);
}
computeRegisterProperties();
@@ -544,6 +545,8 @@ const char *ARMTargetLowering::getTargetNodeName(unsigned Opcode) const {
case ARMISD::VZIP: return "ARMISD::VZIP";
case ARMISD::VUZP: return "ARMISD::VUZP";
case ARMISD::VTRN: return "ARMISD::VTRN";
+ case ARMISD::FMAX: return "ARMISD::FMAX";
+ case ARMISD::FMIN: return "ARMISD::FMIN";
}
}
@@ -863,7 +866,8 @@ ARMTargetLowering::LowerMemOpCallTo(SDValue Chain,
return CreateCopyOfByValArgument(Arg, PtrOff, Chain, Flags, DAG, dl);
}
return DAG.getStore(Chain, dl, Arg, PtrOff,
- PseudoSourceValue::getStack(), LocMemOffset);
+ PseudoSourceValue::getStack(), LocMemOffset,
+ false, false, 0);
}
void ARMTargetLowering::PassF64ArgInRegs(DebugLoc dl, SelectionDAG &DAG,
@@ -920,7 +924,7 @@ ARMTargetLowering::LowerCall(SDValue Chain, SDValue Callee,
// These operations are automatically eliminated by the prolog/epilog pass
Chain = DAG.getCALLSEQ_START(Chain, DAG.getIntPtrConstant(NumBytes, true));
- SDValue StackPtr = DAG.getRegister(ARM::SP, MVT::i32);
+ SDValue StackPtr = DAG.getCopyFromReg(Chain, dl, ARM::SP, getPointerTy());
RegsToPassVector RegsToPass;
SmallVector<SDValue, 8> MemOpChains;
@@ -969,8 +973,6 @@ ARMTargetLowering::LowerCall(SDValue Chain, SDValue Callee,
VA, ArgLocs[++i], StackPtr, MemOpChains, Flags);
} else {
assert(VA.isMemLoc());
- if (StackPtr.getNode() == 0)
- StackPtr = DAG.getCopyFromReg(Chain, dl, ARM::SP, getPointerTy());
MemOpChains.push_back(LowerMemOpCallTo(Chain, StackPtr, Op1,
dl, DAG, VA, Flags));
@@ -983,8 +985,6 @@ ARMTargetLowering::LowerCall(SDValue Chain, SDValue Callee,
RegsToPass.push_back(std::make_pair(VA.getLocReg(), Arg));
} else {
assert(VA.isMemLoc());
- if (StackPtr.getNode() == 0)
- StackPtr = DAG.getCopyFromReg(Chain, dl, ARM::SP, getPointerTy());
MemOpChains.push_back(LowerMemOpCallTo(Chain, StackPtr, Arg,
dl, DAG, VA, Flags));
@@ -1031,7 +1031,8 @@ ARMTargetLowering::LowerCall(SDValue Chain, SDValue Callee,
CPAddr = DAG.getNode(ARMISD::Wrapper, dl, MVT::i32, CPAddr);
Callee = DAG.getLoad(getPointerTy(), dl,
DAG.getEntryNode(), CPAddr,
- PseudoSourceValue::getConstantPool(), 0);
+ PseudoSourceValue::getConstantPool(), 0,
+ false, false, 0);
SDValue PICLabel = DAG.getConstant(ARMPCLabelIndex, MVT::i32);
Callee = DAG.getNode(ARMISD::PIC_ADD, dl,
getPointerTy(), Callee, PICLabel);
@@ -1052,7 +1053,8 @@ ARMTargetLowering::LowerCall(SDValue Chain, SDValue Callee,
CPAddr = DAG.getNode(ARMISD::Wrapper, dl, MVT::i32, CPAddr);
Callee = DAG.getLoad(getPointerTy(), dl,
DAG.getEntryNode(), CPAddr,
- PseudoSourceValue::getConstantPool(), 0);
+ PseudoSourceValue::getConstantPool(), 0,
+ false, false, 0);
SDValue PICLabel = DAG.getConstant(ARMPCLabelIndex, MVT::i32);
Callee = DAG.getNode(ARMISD::PIC_ADD, dl,
getPointerTy(), Callee, PICLabel);
@@ -1238,7 +1240,8 @@ SDValue ARMTargetLowering::LowerBlockAddress(SDValue Op, SelectionDAG &DAG) {
}
CPAddr = DAG.getNode(ARMISD::Wrapper, DL, PtrVT, CPAddr);
SDValue Result = DAG.getLoad(PtrVT, DL, DAG.getEntryNode(), CPAddr,
- PseudoSourceValue::getConstantPool(), 0);
+ PseudoSourceValue::getConstantPool(), 0,
+ false, false, 0);
if (RelocM == Reloc::Static)
return Result;
SDValue PICLabel = DAG.getConstant(ARMPCLabelIndex, MVT::i32);
@@ -1261,7 +1264,8 @@ ARMTargetLowering::LowerToTLSGeneralDynamicModel(GlobalAddressSDNode *GA,
SDValue Argument = DAG.getTargetConstantPool(CPV, PtrVT, 4);
Argument = DAG.getNode(ARMISD::Wrapper, dl, MVT::i32, Argument);
Argument = DAG.getLoad(PtrVT, dl, DAG.getEntryNode(), Argument,
- PseudoSourceValue::getConstantPool(), 0);
+ PseudoSourceValue::getConstantPool(), 0,
+ false, false, 0);
SDValue Chain = Argument.getValue(1);
SDValue PICLabel = DAG.getConstant(ARMPCLabelIndex, MVT::i32);
@@ -1278,8 +1282,7 @@ ARMTargetLowering::LowerToTLSGeneralDynamicModel(GlobalAddressSDNode *GA,
LowerCallTo(Chain, (const Type *) Type::getInt32Ty(*DAG.getContext()),
false, false, false, false,
0, CallingConv::C, false, /*isReturnValueUsed=*/true,
- DAG.getExternalSymbol("__tls_get_addr", PtrVT), Args, DAG, dl,
- DAG.GetOrdering(Chain.getNode()));
+ DAG.getExternalSymbol("__tls_get_addr", PtrVT), Args, DAG, dl);
return CallResult.first;
}
@@ -1308,21 +1311,24 @@ ARMTargetLowering::LowerToTLSExecModels(GlobalAddressSDNode *GA,
Offset = DAG.getTargetConstantPool(CPV, PtrVT, 4);
Offset = DAG.getNode(ARMISD::Wrapper, dl, MVT::i32, Offset);
Offset = DAG.getLoad(PtrVT, dl, Chain, Offset,
- PseudoSourceValue::getConstantPool(), 0);
+ PseudoSourceValue::getConstantPool(), 0,
+ false, false, 0);
Chain = Offset.getValue(1);
SDValue PICLabel = DAG.getConstant(ARMPCLabelIndex, MVT::i32);
Offset = DAG.getNode(ARMISD::PIC_ADD, dl, PtrVT, Offset, PICLabel);
Offset = DAG.getLoad(PtrVT, dl, Chain, Offset,
- PseudoSourceValue::getConstantPool(), 0);
+ PseudoSourceValue::getConstantPool(), 0,
+ false, false, 0);
} else {
// local exec model
ARMConstantPoolValue *CPV = new ARMConstantPoolValue(GV, "tpoff");
Offset = DAG.getTargetConstantPool(CPV, PtrVT, 4);
Offset = DAG.getNode(ARMISD::Wrapper, dl, MVT::i32, Offset);
Offset = DAG.getLoad(PtrVT, dl, Chain, Offset,
- PseudoSourceValue::getConstantPool(), 0);
+ PseudoSourceValue::getConstantPool(), 0,
+ false, false, 0);
}
// The address of the thread local variable is the add of the thread
@@ -1358,13 +1364,15 @@ SDValue ARMTargetLowering::LowerGlobalAddressELF(SDValue Op,
CPAddr = DAG.getNode(ARMISD::Wrapper, dl, MVT::i32, CPAddr);
SDValue Result = DAG.getLoad(PtrVT, dl, DAG.getEntryNode(),
CPAddr,
- PseudoSourceValue::getConstantPool(), 0);
+ PseudoSourceValue::getConstantPool(), 0,
+ false, false, 0);
SDValue Chain = Result.getValue(1);
SDValue GOT = DAG.getGLOBAL_OFFSET_TABLE(PtrVT);
Result = DAG.getNode(ISD::ADD, dl, PtrVT, Result, GOT);
if (!UseGOTOFF)
Result = DAG.getLoad(PtrVT, dl, Chain, Result,
- PseudoSourceValue::getGOT(), 0);
+ PseudoSourceValue::getGOT(), 0,
+ false, false, 0);
return Result;
} else {
// If we have T2 ops, we can materialize the address directly via movt/movw
@@ -1376,7 +1384,8 @@ SDValue ARMTargetLowering::LowerGlobalAddressELF(SDValue Op,
SDValue CPAddr = DAG.getTargetConstantPool(GV, PtrVT, 4);
CPAddr = DAG.getNode(ARMISD::Wrapper, dl, MVT::i32, CPAddr);
return DAG.getLoad(PtrVT, dl, DAG.getEntryNode(), CPAddr,
- PseudoSourceValue::getConstantPool(), 0);
+ PseudoSourceValue::getConstantPool(), 0,
+ false, false, 0);
}
}
}
@@ -1403,7 +1412,8 @@ SDValue ARMTargetLowering::LowerGlobalAddressDarwin(SDValue Op,
CPAddr = DAG.getNode(ARMISD::Wrapper, dl, MVT::i32, CPAddr);
SDValue Result = DAG.getLoad(PtrVT, dl, DAG.getEntryNode(), CPAddr,
- PseudoSourceValue::getConstantPool(), 0);
+ PseudoSourceValue::getConstantPool(), 0,
+ false, false, 0);
SDValue Chain = Result.getValue(1);
if (RelocM == Reloc::PIC_) {
@@ -1413,7 +1423,8 @@ SDValue ARMTargetLowering::LowerGlobalAddressDarwin(SDValue Op,
if (Subtarget->GVIsIndirectSymbol(GV, RelocM))
Result = DAG.getLoad(PtrVT, dl, Chain, Result,
- PseudoSourceValue::getGOT(), 0);
+ PseudoSourceValue::getGOT(), 0,
+ false, false, 0);
return Result;
}
@@ -1434,7 +1445,8 @@ SDValue ARMTargetLowering::LowerGLOBAL_OFFSET_TABLE(SDValue Op,
SDValue CPAddr = DAG.getTargetConstantPool(CPV, PtrVT, 4);
CPAddr = DAG.getNode(ARMISD::Wrapper, dl, MVT::i32, CPAddr);
SDValue Result = DAG.getLoad(PtrVT, dl, DAG.getEntryNode(), CPAddr,
- PseudoSourceValue::getConstantPool(), 0);
+ PseudoSourceValue::getConstantPool(), 0,
+ false, false, 0);
SDValue PICLabel = DAG.getConstant(ARMPCLabelIndex, MVT::i32);
return DAG.getNode(ARMISD::PIC_ADD, dl, PtrVT, Result, PICLabel);
}
@@ -1467,7 +1479,8 @@ ARMTargetLowering::LowerINTRINSIC_WO_CHAIN(SDValue Op, SelectionDAG &DAG,
CPAddr = DAG.getNode(ARMISD::Wrapper, dl, MVT::i32, CPAddr);
SDValue Result =
DAG.getLoad(PtrVT, dl, DAG.getEntryNode(), CPAddr,
- PseudoSourceValue::getConstantPool(), 0);
+ PseudoSourceValue::getConstantPool(), 0,
+ false, false, 0);
SDValue Chain = Result.getValue(1);
if (RelocM == Reloc::PIC_) {
@@ -1515,7 +1528,8 @@ static SDValue LowerVASTART(SDValue Op, SelectionDAG &DAG,
EVT PtrVT = DAG.getTargetLoweringInfo().getPointerTy();
SDValue FR = DAG.getFrameIndex(VarArgsFrameIndex, PtrVT);
const Value *SV = cast<SrcValueSDNode>(Op.getOperand(2))->getValue();
- return DAG.getStore(Op.getOperand(0), dl, FR, Op.getOperand(1), SV, 0);
+ return DAG.getStore(Op.getOperand(0), dl, FR, Op.getOperand(1), SV, 0,
+ false, false, 0);
}
SDValue
@@ -1592,7 +1606,8 @@ ARMTargetLowering::GetF64FormalArgument(CCValAssign &VA, CCValAssign &NextVA,
// Create load node to retrieve arguments from the stack.
SDValue FIN = DAG.getFrameIndex(FI, getPointerTy());
ArgValue2 = DAG.getLoad(MVT::i32, dl, Root, FIN,
- PseudoSourceValue::getFixedStack(FI), 0);
+ PseudoSourceValue::getFixedStack(FI), 0,
+ false, false, 0);
} else {
Reg = MF.addLiveIn(NextVA.getLocReg(), RC);
ArgValue2 = DAG.getCopyFromReg(Root, dl, Reg, MVT::i32);
@@ -1707,7 +1722,8 @@ ARMTargetLowering::LowerFormalArguments(SDValue Chain,
// Create load nodes to retrieve arguments from the stack.
SDValue FIN = DAG.getFrameIndex(FI, getPointerTy());
InVals.push_back(DAG.getLoad(VA.getValVT(), dl, Chain, FIN,
- PseudoSourceValue::getFixedStack(FI), 0));
+ PseudoSourceValue::getFixedStack(FI), 0,
+ false, false, 0));
}
}
@@ -1745,7 +1761,8 @@ ARMTargetLowering::LowerFormalArguments(SDValue Chain,
unsigned VReg = MF.addLiveIn(GPRArgRegs[NumGPRs], RC);
SDValue Val = DAG.getCopyFromReg(Chain, dl, VReg, MVT::i32);
SDValue Store = DAG.getStore(Val.getValue(1), dl, Val, FIN,
- PseudoSourceValue::getFixedStack(VarArgsFrameIndex), 0);
+ PseudoSourceValue::getFixedStack(VarArgsFrameIndex), 0,
+ false, false, 0);
MemOps.push_back(Store);
FIN = DAG.getNode(ISD::ADD, dl, getPointerTy(), FIN,
DAG.getConstant(4, getPointerTy()));
@@ -1939,13 +1956,14 @@ SDValue ARMTargetLowering::LowerBR_JT(SDValue Op, SelectionDAG &DAG) {
}
if (getTargetMachine().getRelocationModel() == Reloc::PIC_) {
Addr = DAG.getLoad((EVT)MVT::i32, dl, Chain, Addr,
- PseudoSourceValue::getJumpTable(), 0);
+ PseudoSourceValue::getJumpTable(), 0,
+ false, false, 0);
Chain = Addr.getValue(1);
Addr = DAG.getNode(ISD::ADD, dl, PTy, Addr, Table);
return DAG.getNode(ARMISD::BR_JT, dl, MVT::Other, Chain, Addr, JTI, UId);
} else {
Addr = DAG.getLoad(PTy, dl, Chain, Addr,
- PseudoSourceValue::getJumpTable(), 0);
+ PseudoSourceValue::getJumpTable(), 0, false, false, 0);
Chain = Addr.getValue(1);
return DAG.getNode(ARMISD::BR_JT, dl, MVT::Other, Chain, Addr, JTI, UId);
}
@@ -1993,7 +2011,8 @@ SDValue ARMTargetLowering::LowerFRAMEADDR(SDValue Op, SelectionDAG &DAG) {
? ARM::R7 : ARM::R11;
SDValue FrameAddr = DAG.getCopyFromReg(DAG.getEntryNode(), dl, FrameReg, VT);
while (Depth--)
- FrameAddr = DAG.getLoad(VT, dl, DAG.getEntryNode(), FrameAddr, NULL, 0);
+ FrameAddr = DAG.getLoad(VT, dl, DAG.getEntryNode(), FrameAddr, NULL, 0,
+ false, false, 0);
return FrameAddr;
}
@@ -2038,7 +2057,7 @@ ARMTargetLowering::EmitTargetCodeForMemcpy(SelectionDAG &DAG, DebugLoc dl,
Loads[i] = DAG.getLoad(VT, dl, Chain,
DAG.getNode(ISD::ADD, dl, MVT::i32, Src,
DAG.getConstant(SrcOff, MVT::i32)),
- SrcSV, SrcSVOff + SrcOff);
+ SrcSV, SrcSVOff + SrcOff, false, false, 0);
TFOps[i] = Loads[i].getValue(1);
SrcOff += VTSize;
}
@@ -2047,9 +2066,9 @@ ARMTargetLowering::EmitTargetCodeForMemcpy(SelectionDAG &DAG, DebugLoc dl,
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.getConstant(DstOff, MVT::i32)),
- DstSV, DstSVOff + DstOff);
+ DAG.getNode(ISD::ADD, dl, MVT::i32, Dst,
+ DAG.getConstant(DstOff, MVT::i32)),
+ DstSV, DstSVOff + DstOff, false, false, 0);
DstOff += VTSize;
}
Chain = DAG.getNode(ISD::TokenFactor, dl, MVT::Other, &TFOps[0], i);
@@ -2075,7 +2094,7 @@ ARMTargetLowering::EmitTargetCodeForMemcpy(SelectionDAG &DAG, DebugLoc dl,
Loads[i] = DAG.getLoad(VT, dl, Chain,
DAG.getNode(ISD::ADD, dl, MVT::i32, Src,
DAG.getConstant(SrcOff, MVT::i32)),
- SrcSV, SrcSVOff + SrcOff);
+ SrcSV, SrcSVOff + SrcOff, false, false, 0);
TFOps[i] = Loads[i].getValue(1);
++i;
SrcOff += VTSize;
@@ -2097,7 +2116,7 @@ ARMTargetLowering::EmitTargetCodeForMemcpy(SelectionDAG &DAG, DebugLoc dl,
TFOps[i] = DAG.getStore(Chain, dl, Loads[i],
DAG.getNode(ISD::ADD, dl, MVT::i32, Dst,
DAG.getConstant(DstOff, MVT::i32)),
- DstSV, DstSVOff + DstOff);
+ DstSV, DstSVOff + DstOff, false, false, 0);
++i;
DstOff += VTSize;
BytesLeft -= VTSize;
@@ -3835,23 +3854,106 @@ static SDValue PerformExtendCombine(SDNode *N, SelectionDAG &DAG,
return SDValue();
}
+/// PerformSELECT_CCCombine - Target-specific DAG combining for ISD::SELECT_CC
+/// to match f32 max/min patterns to use NEON vmax/vmin instructions.
+static SDValue PerformSELECT_CCCombine(SDNode *N, SelectionDAG &DAG,
+ const ARMSubtarget *ST) {
+ // If the target supports NEON, try to use vmax/vmin instructions for f32
+ // selects like "x < y ? x : y". Unless the FiniteOnlyFPMath option is set,
+ // be careful about NaNs: NEON's vmax/vmin return NaN if either operand is
+ // a NaN; only do the transformation when it matches that behavior.
+
+ // For now only do this when using NEON for FP operations; if using VFP, it
+ // is not obvious that the benefit outweighs the cost of switching to the
+ // NEON pipeline.
+ if (!ST->hasNEON() || !ST->useNEONForSinglePrecisionFP() ||
+ N->getValueType(0) != MVT::f32)
+ return SDValue();
+
+ SDValue CondLHS = N->getOperand(0);
+ SDValue CondRHS = N->getOperand(1);
+ SDValue LHS = N->getOperand(2);
+ SDValue RHS = N->getOperand(3);
+ ISD::CondCode CC = cast<CondCodeSDNode>(N->getOperand(4))->get();
+
+ unsigned Opcode = 0;
+ bool IsReversed;
+ if (DAG.isEqualTo(LHS, CondLHS) && DAG.isEqualTo(RHS, CondRHS)) {
+ IsReversed = false; // x CC y ? x : y
+ } else if (DAG.isEqualTo(LHS, CondRHS) && DAG.isEqualTo(RHS, CondLHS)) {
+ IsReversed = true ; // x CC y ? y : x
+ } else {
+ return SDValue();
+ }
+
+ bool IsUnordered;
+ switch (CC) {
+ default: break;
+ case ISD::SETOLT:
+ case ISD::SETOLE:
+ case ISD::SETLT:
+ case ISD::SETLE:
+ case ISD::SETULT:
+ case ISD::SETULE:
+ // If LHS is NaN, an ordered comparison will be false and the result will
+ // be the RHS, but vmin(NaN, RHS) = NaN. Avoid this by checking that LHS
+ // != NaN. Likewise, for unordered comparisons, check for RHS != NaN.
+ IsUnordered = (CC == ISD::SETULT || CC == ISD::SETULE);
+ if (!DAG.isKnownNeverNaN(IsUnordered ? RHS : LHS))
+ break;
+ // For less-than-or-equal comparisons, "+0 <= -0" will be true but vmin
+ // will return -0, so vmin can only be used for unsafe math or if one of
+ // the operands is known to be nonzero.
+ if ((CC == ISD::SETLE || CC == ISD::SETOLE || CC == ISD::SETULE) &&
+ !UnsafeFPMath &&
+ !(DAG.isKnownNeverZero(LHS) || DAG.isKnownNeverZero(RHS)))
+ break;
+ Opcode = IsReversed ? ARMISD::FMAX : ARMISD::FMIN;
+ break;
+
+ case ISD::SETOGT:
+ case ISD::SETOGE:
+ case ISD::SETGT:
+ case ISD::SETGE:
+ case ISD::SETUGT:
+ case ISD::SETUGE:
+ // If LHS is NaN, an ordered comparison will be false and the result will
+ // be the RHS, but vmax(NaN, RHS) = NaN. Avoid this by checking that LHS
+ // != NaN. Likewise, for unordered comparisons, check for RHS != NaN.
+ IsUnordered = (CC == ISD::SETUGT || CC == ISD::SETUGE);
+ if (!DAG.isKnownNeverNaN(IsUnordered ? RHS : LHS))
+ break;
+ // For greater-than-or-equal comparisons, "-0 >= +0" will be true but vmax
+ // will return +0, so vmax can only be used for unsafe math or if one of
+ // the operands is known to be nonzero.
+ if ((CC == ISD::SETGE || CC == ISD::SETOGE || CC == ISD::SETUGE) &&
+ !UnsafeFPMath &&
+ !(DAG.isKnownNeverZero(LHS) || DAG.isKnownNeverZero(RHS)))
+ break;
+ Opcode = IsReversed ? ARMISD::FMIN : ARMISD::FMAX;
+ break;
+ }
+
+ if (!Opcode)
+ return SDValue();
+ return DAG.getNode(Opcode, N->getDebugLoc(), N->getValueType(0), LHS, RHS);
+}
+
SDValue ARMTargetLowering::PerformDAGCombine(SDNode *N,
DAGCombinerInfo &DCI) const {
switch (N->getOpcode()) {
default: break;
- case ISD::ADD: return PerformADDCombine(N, DCI);
- case ISD::SUB: return PerformSUBCombine(N, DCI);
+ case ISD::ADD: return PerformADDCombine(N, DCI);
+ case ISD::SUB: return PerformSUBCombine(N, DCI);
case ARMISD::VMOVRRD: return PerformVMOVRRDCombine(N, DCI);
- case ISD::INTRINSIC_WO_CHAIN:
- return PerformIntrinsicCombine(N, DCI.DAG);
+ case ISD::INTRINSIC_WO_CHAIN: return PerformIntrinsicCombine(N, DCI.DAG);
case ISD::SHL:
case ISD::SRA:
- case ISD::SRL:
- return PerformShiftCombine(N, DCI.DAG, Subtarget);
+ case ISD::SRL: return PerformShiftCombine(N, DCI.DAG, Subtarget);
case ISD::SIGN_EXTEND:
case ISD::ZERO_EXTEND:
- case ISD::ANY_EXTEND:
- return PerformExtendCombine(N, DCI.DAG, Subtarget);
+ case ISD::ANY_EXTEND: return PerformExtendCombine(N, DCI.DAG, Subtarget);
+ case ISD::SELECT_CC: return PerformSELECT_CCCombine(N, DCI.DAG, Subtarget);
}
return SDValue();
}