formatting change, reduce indentation. No functionality change.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66642 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2009-03-11 05:48:52 +00:00
parent 600fec3cea
commit 47b4ce8529

View File

@ -8098,74 +8098,72 @@ static SDValue PerformBuildVectorCombine(SDNode *N, SelectionDAG &DAG,
/// PerformSELECTCombine - Do target-specific dag combines on SELECT nodes.
static SDValue PerformSELECTCombine(SDNode *N, SelectionDAG &DAG,
const X86Subtarget *Subtarget) {
DebugLoc dl = N->getDebugLoc();
const X86Subtarget *Subtarget) {
DebugLoc DL = N->getDebugLoc();
SDValue Cond = N->getOperand(0);
// Get the LHS/RHS of the select.
SDValue LHS = N->getOperand(1);
SDValue RHS = N->getOperand(2);
// If we have SSE[12] support, try to form min/max nodes.
if (Subtarget->hasSSE2() &&
(N->getValueType(0) == MVT::f32 || N->getValueType(0) == MVT::f64)) {
if (Cond.getOpcode() == ISD::SETCC) {
// Get the LHS/RHS of the select.
SDValue LHS = N->getOperand(1);
SDValue RHS = N->getOperand(2);
ISD::CondCode CC = cast<CondCodeSDNode>(Cond.getOperand(2))->get();
(LHS.getValueType() == MVT::f32 || LHS.getValueType() == MVT::f64) &&
Cond.getOpcode() == ISD::SETCC) {
ISD::CondCode CC = cast<CondCodeSDNode>(Cond.getOperand(2))->get();
unsigned Opcode = 0;
if (LHS == Cond.getOperand(0) && RHS == Cond.getOperand(1)) {
switch (CC) {
default: break;
case ISD::SETOLE: // (X <= Y) ? X : Y -> min
case ISD::SETULE:
case ISD::SETLE:
if (!UnsafeFPMath) break;
// FALL THROUGH.
case ISD::SETOLT: // (X olt/lt Y) ? X : Y -> min
case ISD::SETLT:
Opcode = X86ISD::FMIN;
break;
unsigned Opcode = 0;
if (LHS == Cond.getOperand(0) && RHS == Cond.getOperand(1)) {
switch (CC) {
default: break;
case ISD::SETOLE: // (X <= Y) ? X : Y -> min
case ISD::SETULE:
case ISD::SETLE:
if (!UnsafeFPMath) break;
// FALL THROUGH.
case ISD::SETOLT: // (X olt/lt Y) ? X : Y -> min
case ISD::SETLT:
Opcode = X86ISD::FMIN;
break;
case ISD::SETOGT: // (X > Y) ? X : Y -> max
case ISD::SETUGT:
case ISD::SETGT:
if (!UnsafeFPMath) break;
// FALL THROUGH.
case ISD::SETUGE: // (X uge/ge Y) ? X : Y -> max
case ISD::SETGE:
Opcode = X86ISD::FMAX;
break;
}
} else if (LHS == Cond.getOperand(1) && RHS == Cond.getOperand(0)) {
switch (CC) {
default: break;
case ISD::SETOGT: // (X > Y) ? Y : X -> min
case ISD::SETUGT:
case ISD::SETGT:
if (!UnsafeFPMath) break;
// FALL THROUGH.
case ISD::SETUGE: // (X uge/ge Y) ? Y : X -> min
case ISD::SETGE:
Opcode = X86ISD::FMIN;
break;
case ISD::SETOLE: // (X <= Y) ? Y : X -> max
case ISD::SETULE:
case ISD::SETLE:
if (!UnsafeFPMath) break;
// FALL THROUGH.
case ISD::SETOLT: // (X olt/lt Y) ? Y : X -> max
case ISD::SETLT:
Opcode = X86ISD::FMAX;
break;
}
case ISD::SETOGT: // (X > Y) ? X : Y -> max
case ISD::SETUGT:
case ISD::SETGT:
if (!UnsafeFPMath) break;
// FALL THROUGH.
case ISD::SETUGE: // (X uge/ge Y) ? X : Y -> max
case ISD::SETGE:
Opcode = X86ISD::FMAX;
break;
}
} else if (LHS == Cond.getOperand(1) && RHS == Cond.getOperand(0)) {
switch (CC) {
default: break;
case ISD::SETOGT: // (X > Y) ? Y : X -> min
case ISD::SETUGT:
case ISD::SETGT:
if (!UnsafeFPMath) break;
// FALL THROUGH.
case ISD::SETUGE: // (X uge/ge Y) ? Y : X -> min
case ISD::SETGE:
Opcode = X86ISD::FMIN;
break;
if (Opcode)
return DAG.getNode(Opcode, dl, N->getValueType(0), LHS, RHS);
case ISD::SETOLE: // (X <= Y) ? Y : X -> max
case ISD::SETULE:
case ISD::SETLE:
if (!UnsafeFPMath) break;
// FALL THROUGH.
case ISD::SETOLT: // (X olt/lt Y) ? Y : X -> max
case ISD::SETLT:
Opcode = X86ISD::FMAX;
break;
}
}
if (Opcode)
return DAG.getNode(Opcode, DL, N->getValueType(0), LHS, RHS);
}
return SDValue();
}
@ -8186,7 +8184,7 @@ static SDValue PerformShiftCombine(SDNode* N, SelectionDAG &DAG,
SDValue ShAmtOp = N->getOperand(1);
MVT EltVT = VT.getVectorElementType();
DebugLoc dl = N->getDebugLoc();
DebugLoc DL = N->getDebugLoc();
SDValue BaseShAmt;
if (ShAmtOp.getOpcode() == ISD::BUILD_VECTOR) {
unsigned NumElts = VT.getVectorNumElements();
@ -8206,15 +8204,15 @@ static SDValue PerformShiftCombine(SDNode* N, SelectionDAG &DAG,
}
} else if (ShAmtOp.getOpcode() == ISD::VECTOR_SHUFFLE &&
isSplatMask(ShAmtOp.getOperand(2).getNode())) {
BaseShAmt = DAG.getNode(ISD::EXTRACT_VECTOR_ELT, dl, EltVT, ShAmtOp,
BaseShAmt = DAG.getNode(ISD::EXTRACT_VECTOR_ELT, DL, EltVT, ShAmtOp,
DAG.getIntPtrConstant(0));
} else
return SDValue();
if (EltVT.bitsGT(MVT::i32))
BaseShAmt = DAG.getNode(ISD::TRUNCATE, dl, MVT::i32, BaseShAmt);
BaseShAmt = DAG.getNode(ISD::TRUNCATE, DL, MVT::i32, BaseShAmt);
else if (EltVT.bitsLT(MVT::i32))
BaseShAmt = DAG.getNode(ISD::ANY_EXTEND, dl, MVT::i32, BaseShAmt);
BaseShAmt = DAG.getNode(ISD::ANY_EXTEND, DL, MVT::i32, BaseShAmt);
// The shift amount is identical so we can do a vector shift.
SDValue ValOp = N->getOperand(0);
@ -8224,39 +8222,39 @@ static SDValue PerformShiftCombine(SDNode* N, SelectionDAG &DAG,
break;
case ISD::SHL:
if (VT == MVT::v2i64)
return DAG.getNode(ISD::INTRINSIC_WO_CHAIN, dl, VT,
return DAG.getNode(ISD::INTRINSIC_WO_CHAIN, DL, VT,
DAG.getConstant(Intrinsic::x86_sse2_pslli_q, MVT::i32),
ValOp, BaseShAmt);
if (VT == MVT::v4i32)
return DAG.getNode(ISD::INTRINSIC_WO_CHAIN, dl, VT,
return DAG.getNode(ISD::INTRINSIC_WO_CHAIN, DL, VT,
DAG.getConstant(Intrinsic::x86_sse2_pslli_d, MVT::i32),
ValOp, BaseShAmt);
if (VT == MVT::v8i16)
return DAG.getNode(ISD::INTRINSIC_WO_CHAIN, dl, VT,
return DAG.getNode(ISD::INTRINSIC_WO_CHAIN, DL, VT,
DAG.getConstant(Intrinsic::x86_sse2_pslli_w, MVT::i32),
ValOp, BaseShAmt);
break;
case ISD::SRA:
if (VT == MVT::v4i32)
return DAG.getNode(ISD::INTRINSIC_WO_CHAIN, dl, VT,
return DAG.getNode(ISD::INTRINSIC_WO_CHAIN, DL, VT,
DAG.getConstant(Intrinsic::x86_sse2_psrai_d, MVT::i32),
ValOp, BaseShAmt);
if (VT == MVT::v8i16)
return DAG.getNode(ISD::INTRINSIC_WO_CHAIN, dl, VT,
return DAG.getNode(ISD::INTRINSIC_WO_CHAIN, DL, VT,
DAG.getConstant(Intrinsic::x86_sse2_psrai_w, MVT::i32),
ValOp, BaseShAmt);
break;
case ISD::SRL:
if (VT == MVT::v2i64)
return DAG.getNode(ISD::INTRINSIC_WO_CHAIN, dl, VT,
return DAG.getNode(ISD::INTRINSIC_WO_CHAIN, DL, VT,
DAG.getConstant(Intrinsic::x86_sse2_psrli_q, MVT::i32),
ValOp, BaseShAmt);
if (VT == MVT::v4i32)
return DAG.getNode(ISD::INTRINSIC_WO_CHAIN, dl, VT,
return DAG.getNode(ISD::INTRINSIC_WO_CHAIN, DL, VT,
DAG.getConstant(Intrinsic::x86_sse2_psrli_d, MVT::i32),
ValOp, BaseShAmt);
if (VT == MVT::v8i16)
return DAG.getNode(ISD::INTRINSIC_WO_CHAIN, dl, VT,
return DAG.getNode(ISD::INTRINSIC_WO_CHAIN, DL, VT,
DAG.getConstant(Intrinsic::x86_sse2_psrli_w, MVT::i32),
ValOp, BaseShAmt);
break;
@ -8298,33 +8296,33 @@ static SDValue PerformSTORECombine(SDNode *N, SelectionDAG &DAG,
}
}
if (Ld) {
DebugLoc dl = N->getDebugLoc();
DebugLoc DL = N->getDebugLoc();
// If we are a 64-bit capable x86, lower to a single movq load/store pair.
if (Subtarget->is64Bit()) {
SDValue NewLd = DAG.getLoad(MVT::i64, dl, Ld->getChain(),
SDValue NewLd = DAG.getLoad(MVT::i64, DL, Ld->getChain(),
Ld->getBasePtr(), Ld->getSrcValue(),
Ld->getSrcValueOffset(), Ld->isVolatile(),
Ld->getAlignment());
SDValue NewChain = NewLd.getValue(1);
if (TokenFactorIndex != -1) {
Ops.push_back(NewChain);
NewChain = DAG.getNode(ISD::TokenFactor, dl, MVT::Other, &Ops[0],
NewChain = DAG.getNode(ISD::TokenFactor, DL, MVT::Other, &Ops[0],
Ops.size());
}
return DAG.getStore(NewChain, dl, NewLd, St->getBasePtr(),
return DAG.getStore(NewChain, DL, NewLd, St->getBasePtr(),
St->getSrcValue(), St->getSrcValueOffset(),
St->isVolatile(), St->getAlignment());
}
// Otherwise, lower to two 32-bit copies.
SDValue LoAddr = Ld->getBasePtr();
SDValue HiAddr = DAG.getNode(ISD::ADD, dl, MVT::i32, LoAddr,
SDValue HiAddr = DAG.getNode(ISD::ADD, DL, MVT::i32, LoAddr,
DAG.getConstant(4, MVT::i32));
SDValue LoLd = DAG.getLoad(MVT::i32, dl, Ld->getChain(), LoAddr,
SDValue LoLd = DAG.getLoad(MVT::i32, DL, Ld->getChain(), LoAddr,
Ld->getSrcValue(), Ld->getSrcValueOffset(),
Ld->isVolatile(), Ld->getAlignment());
SDValue HiLd = DAG.getLoad(MVT::i32, dl, Ld->getChain(), HiAddr,
SDValue HiLd = DAG.getLoad(MVT::i32, DL, Ld->getChain(), HiAddr,
Ld->getSrcValue(), Ld->getSrcValueOffset()+4,
Ld->isVolatile(),
MinAlign(Ld->getAlignment(), 4));
@ -8333,23 +8331,23 @@ static SDValue PerformSTORECombine(SDNode *N, SelectionDAG &DAG,
if (TokenFactorIndex != -1) {
Ops.push_back(LoLd);
Ops.push_back(HiLd);
NewChain = DAG.getNode(ISD::TokenFactor, dl, MVT::Other, &Ops[0],
NewChain = DAG.getNode(ISD::TokenFactor, DL, MVT::Other, &Ops[0],
Ops.size());
}
LoAddr = St->getBasePtr();
HiAddr = DAG.getNode(ISD::ADD, dl, MVT::i32, LoAddr,
HiAddr = DAG.getNode(ISD::ADD, DL, MVT::i32, LoAddr,
DAG.getConstant(4, MVT::i32));
SDValue LoSt = DAG.getStore(NewChain, dl, LoLd, LoAddr,
SDValue LoSt = DAG.getStore(NewChain, DL, LoLd, LoAddr,
St->getSrcValue(), St->getSrcValueOffset(),
St->isVolatile(), St->getAlignment());
SDValue HiSt = DAG.getStore(NewChain, dl, HiLd, HiAddr,
SDValue HiSt = DAG.getStore(NewChain, DL, HiLd, HiAddr,
St->getSrcValue(),
St->getSrcValueOffset() + 4,
St->isVolatile(),
MinAlign(St->getAlignment(), 4));
return DAG.getNode(ISD::TokenFactor, dl, MVT::Other, LoSt, HiSt);
return DAG.getNode(ISD::TokenFactor, DL, MVT::Other, LoSt, HiSt);
}
}
return SDValue();