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Use const qualifiers with TargetLowering. This eliminates several

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const_casts, and it reinforces the design of the Target classes being
immutable.

SelectionDAGISel::IsLegalToFold is now a static member function, because
PIC16 uses it in an unconventional way. There is more room for API
cleanup here.

And PIC16's AsmPrinter no longer uses TargetLowering.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101635 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Dan Gohman
2010-04-17 15:26:15 +00:00
parent 1e93df6f0b
commit d858e90f03
70 changed files with 755 additions and 690 deletions
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30
lib/Target/SystemZ/SystemZISelLowering.cpp
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@@ -158,7 +158,8 @@ SystemZTargetLowering::SystemZTargetLowering(SystemZTargetMachine &tm) :
setTruncStoreAction(MVT::f64, MVT::f32, Expand);
}
SDValue SystemZTargetLowering::LowerOperation(SDValue Op, SelectionDAG &DAG) {
SDValue SystemZTargetLowering::LowerOperation(SDValue Op,
SelectionDAG &DAG) const {
switch (Op.getOpcode()) {
case ISD::BR_CC: return LowerBR_CC(Op, DAG);
case ISD::SELECT_CC: return LowerSELECT_CC(Op, DAG);
@@ -236,7 +237,8 @@ SystemZTargetLowering::LowerFormalArguments(SDValue Chain,
&Ins,
DebugLoc dl,
SelectionDAG &DAG,
SmallVectorImpl<SDValue> &InVals) {
SmallVectorImpl<SDValue> &InVals)
const {
switch (CallConv) {
default:
@@ -254,7 +256,7 @@ SystemZTargetLowering::LowerCall(SDValue Chain, SDValue Callee,
const SmallVectorImpl<ISD::OutputArg> &Outs,
const SmallVectorImpl<ISD::InputArg> &Ins,
DebugLoc dl, SelectionDAG &DAG,
SmallVectorImpl<SDValue> &InVals) {
SmallVectorImpl<SDValue> &InVals) const {
// SystemZ target does not yet support tail call optimization.
isTailCall = false;
@@ -280,7 +282,8 @@ SystemZTargetLowering::LowerCCCArguments(SDValue Chain,
&Ins,
DebugLoc dl,
SelectionDAG &DAG,
SmallVectorImpl<SDValue> &InVals) {
SmallVectorImpl<SDValue> &InVals)
const {
MachineFunction &MF = DAG.getMachineFunction();
MachineFrameInfo *MFI = MF.getFrameInfo();
@@ -371,7 +374,7 @@ SystemZTargetLowering::LowerCCCCallTo(SDValue Chain, SDValue Callee,
&Outs,
const SmallVectorImpl<ISD::InputArg> &Ins,
DebugLoc dl, SelectionDAG &DAG,
SmallVectorImpl<SDValue> &InVals) {
SmallVectorImpl<SDValue> &InVals) const {
MachineFunction &MF = DAG.getMachineFunction();
@@ -505,7 +508,7 @@ SystemZTargetLowering::LowerCallResult(SDValue Chain, SDValue InFlag,
const SmallVectorImpl<ISD::InputArg>
&Ins,
DebugLoc dl, SelectionDAG &DAG,
SmallVectorImpl<SDValue> &InVals) {
SmallVectorImpl<SDValue> &InVals) const {
// Assign locations to each value returned by this call.
SmallVector<CCValAssign, 16> RVLocs;
@@ -547,7 +550,7 @@ SDValue
SystemZTargetLowering::LowerReturn(SDValue Chain,
CallingConv::ID CallConv, bool isVarArg,
const SmallVectorImpl<ISD::OutputArg> &Outs,
DebugLoc dl, SelectionDAG &DAG) {
DebugLoc dl, SelectionDAG &DAG) const {
// CCValAssign - represent the assignment of the return value to a location
SmallVector<CCValAssign, 16> RVLocs;
@@ -600,7 +603,7 @@ SystemZTargetLowering::LowerReturn(SDValue Chain,
SDValue SystemZTargetLowering::EmitCmp(SDValue LHS, SDValue RHS,
ISD::CondCode CC, SDValue &SystemZCC,
SelectionDAG &DAG) {
SelectionDAG &DAG) const {
// FIXME: Emit a test if RHS is zero
bool isUnsigned = false;
@@ -678,7 +681,7 @@ SDValue SystemZTargetLowering::EmitCmp(SDValue LHS, SDValue RHS,
}
SDValue SystemZTargetLowering::LowerBR_CC(SDValue Op, SelectionDAG &DAG) {
SDValue SystemZTargetLowering::LowerBR_CC(SDValue Op, SelectionDAG &DAG) const {
SDValue Chain = Op.getOperand(0);
ISD::CondCode CC = cast<CondCodeSDNode>(Op.getOperand(1))->get();
SDValue LHS = Op.getOperand(2);
@@ -692,7 +695,8 @@ SDValue SystemZTargetLowering::LowerBR_CC(SDValue Op, SelectionDAG &DAG) {
Chain, Dest, SystemZCC, Flag);
}
SDValue SystemZTargetLowering::LowerSELECT_CC(SDValue Op, SelectionDAG &DAG) {
SDValue SystemZTargetLowering::LowerSELECT_CC(SDValue Op,
SelectionDAG &DAG) const {
SDValue LHS = Op.getOperand(0);
SDValue RHS = Op.getOperand(1);
SDValue TrueV = Op.getOperand(2);
@@ -714,7 +718,7 @@ SDValue SystemZTargetLowering::LowerSELECT_CC(SDValue Op, SelectionDAG &DAG) {
}
SDValue SystemZTargetLowering::LowerGlobalAddress(SDValue Op,
SelectionDAG &DAG) {
SelectionDAG &DAG) const {
DebugLoc dl = Op.getDebugLoc();
const GlobalValue *GV = cast<GlobalAddressSDNode>(Op)->getGlobal();
int64_t Offset = cast<GlobalAddressSDNode>(Op)->getOffset();
@@ -753,7 +757,7 @@ SDValue SystemZTargetLowering::LowerGlobalAddress(SDValue Op,
// FIXME: PIC here
SDValue SystemZTargetLowering::LowerJumpTable(SDValue Op,
SelectionDAG &DAG) {
SelectionDAG &DAG) const {
DebugLoc dl = Op.getDebugLoc();
JumpTableSDNode *JT = cast<JumpTableSDNode>(Op);
SDValue Result = DAG.getTargetJumpTable(JT->getIndex(), getPointerTy());
@@ -765,7 +769,7 @@ SDValue SystemZTargetLowering::LowerJumpTable(SDValue Op,
// FIXME: PIC here
// FIXME: This is just dirty hack. We need to lower cpool properly
SDValue SystemZTargetLowering::LowerConstantPool(SDValue Op,
SelectionDAG &DAG) {
SelectionDAG &DAG) const {
DebugLoc dl = Op.getDebugLoc();
ConstantPoolSDNode *CP = cast<ConstantPoolSDNode>(Op);