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Move duplicated AddLiveIn function from X86 and ARM backends to be a method

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in the MachineFunction class, renaming it to addLiveIn for consistency with
the same method in MachineBasicBlock.  Thanks for Anton for suggesting this.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69615 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Bob Wilson 2009-04-20 18:36:57 +00:00
parent 91b477d2fa
commit 998e125a87
4 changed files with 23 additions and 30 deletions
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5
include/llvm/CodeGen/MachineFunction.h
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@ -33,6 +33,7 @@ class MachineFrameInfo;
class MachineConstantPool;
class MachineJumpTableInfo;
class TargetMachine;
class TargetRegisterClass;
template <>
struct ilist_traits<MachineBasicBlock>
@ -238,6 +239,10 @@ public:
typedef std::reverse_iterator<const_iterator> const_reverse_iterator;
typedef std::reverse_iterator<iterator> reverse_iterator;
/// addLiveIn - Add the specified physical register as a live-in value and
/// create a corresponding virtual register for it.
unsigned addLiveIn(unsigned PReg, const TargetRegisterClass *RC);
//===--------------------------------------------------------------------===//
// BasicBlock accessor functions.
//

10
lib/CodeGen/MachineFunction.cpp
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@ -385,6 +385,16 @@ MachineFunction& MachineFunction::get(const Function *F)
return *mc;
}
/// addLiveIn - Add the specified physical register as a live-in value and
/// create a corresponding virtual register for it.
unsigned MachineFunction::addLiveIn(unsigned PReg,
const TargetRegisterClass *RC) {
assert(RC->contains(PReg) && "Not the correct regclass!");
unsigned VReg = getRegInfo().createVirtualRegister(RC);
getRegInfo().addLiveIn(PReg, VReg);
return VReg;
}
/// getOrCreateDebugLocID - Look up the DebugLocTuple index with the given
/// source file, line, and column. If none currently exists, create a new
/// DebugLocTuple, and insert it into the DebugIdMap.

17
lib/Target/ARM/ARMISelLowering.cpp
View File

@ -1053,17 +1053,6 @@ static SDValue LowerVASTART(SDValue Op, SelectionDAG &DAG,
return DAG.getStore(Op.getOperand(0), dl, FR, Op.getOperand(1), SV, 0);
}
/// AddLiveIn - This helper function adds the specified physical register to the
/// MachineFunction as a live-in value. It also creates a corresponding virtual
/// register for it.
static unsigned AddLiveIn(MachineFunction &MF, unsigned PReg,
const TargetRegisterClass *RC) {
assert(RC->contains(PReg) && "Not the correct regclass!");
unsigned VReg = MF.getRegInfo().createVirtualRegister(RC);
MF.getRegInfo().addLiveIn(PReg, VReg);
return VReg;
}
SDValue
ARMTargetLowering::LowerFORMAL_ARGUMENTS(SDValue Op, SelectionDAG &DAG) {
MachineFunction &MF = DAG.getMachineFunction();
@ -1101,7 +1090,7 @@ ARMTargetLowering::LowerFORMAL_ARGUMENTS(SDValue Op, SelectionDAG &DAG) {
assert(0 && "RegVT not supported by FORMAL_ARGUMENTS Lowering");
// Transform the arguments stored in physical registers into virtual ones.
unsigned Reg = AddLiveIn(MF, VA.getLocReg(), RC);
unsigned Reg = MF.addLiveIn(VA.getLocReg(), RC);
SDValue ArgValue = DAG.getCopyFromReg(Root, dl, Reg, RegVT);
// f64 is passed in i32 pairs and must be combined.
@ -1118,7 +1107,7 @@ ARMTargetLowering::LowerFORMAL_ARGUMENTS(SDValue Op, SelectionDAG &DAG) {
SDValue FIN = DAG.getFrameIndex(FI, getPointerTy());
ArgValue2 = DAG.getLoad(MVT::i32, dl, Root, FIN, NULL, 0);
} else {
Reg = AddLiveIn(MF, VA.getLocReg(), RC);
Reg = MF.addLiveIn(VA.getLocReg(), RC);
ArgValue2 = DAG.getCopyFromReg(Root, dl, Reg, MVT::i32);
}
@ -1195,7 +1184,7 @@ ARMTargetLowering::LowerFORMAL_ARGUMENTS(SDValue Op, SelectionDAG &DAG) {
else
RC = ARM::GPRRegisterClass;
unsigned VReg = AddLiveIn(MF, GPRArgRegs[NumGPRs], RC);
unsigned VReg = MF.addLiveIn(GPRArgRegs[NumGPRs], RC);
SDValue Val = DAG.getCopyFromReg(Root, dl, VReg, MVT::i32);
SDValue Store = DAG.getStore(Val.getValue(1), dl, Val, FIN, NULL, 0);
MemOps.push_back(Store);

21
lib/Target/X86/X86ISelLowering.cpp
View File

@ -1147,17 +1147,6 @@ LowerCallResult(SDValue Chain, SDValue InFlag, CallSDNode *TheCall,
// For info on fast calling convention see Fast Calling Convention (tail call)
// implementation LowerX86_32FastCCCallTo.
/// AddLiveIn - This helper function adds the specified physical register to the
/// MachineFunction as a live in value. It also creates a corresponding virtual
/// register for it.
static unsigned AddLiveIn(MachineFunction &MF, unsigned PReg,
const TargetRegisterClass *RC) {
assert(RC->contains(PReg) && "Not the correct regclass!");
unsigned VReg = MF.getRegInfo().createVirtualRegister(RC);
MF.getRegInfo().addLiveIn(PReg, VReg);
return VReg;
}
/// CallIsStructReturn - Determines whether a CALL node uses struct return
/// semantics.
static bool CallIsStructReturn(CallSDNode *TheCall) {
@ -1356,7 +1345,7 @@ X86TargetLowering::LowerFORMAL_ARGUMENTS(SDValue Op, SelectionDAG &DAG) {
assert(0 && "Unknown argument type!");
}
unsigned Reg = AddLiveIn(DAG.getMachineFunction(), VA.getLocReg(), RC);
unsigned Reg = DAG.getMachineFunction().addLiveIn(VA.getLocReg(), RC);
SDValue ArgValue = DAG.getCopyFromReg(Root, dl, Reg, RegVT);
// If this is an 8 or 16-bit value, it is really passed promoted to 32
@ -1472,8 +1461,8 @@ X86TargetLowering::LowerFORMAL_ARGUMENTS(SDValue Op, SelectionDAG &DAG) {
SDValue FIN = DAG.getNode(ISD::ADD, dl, getPointerTy(), RSFIN,
DAG.getIntPtrConstant(VarArgsGPOffset));
for (; NumIntRegs != TotalNumIntRegs; ++NumIntRegs) {
unsigned VReg = AddLiveIn(MF, GPR64ArgRegs[NumIntRegs],
X86::GR64RegisterClass);
unsigned VReg = MF.addLiveIn(GPR64ArgRegs[NumIntRegs],
X86::GR64RegisterClass);
SDValue Val = DAG.getCopyFromReg(Root, dl, VReg, MVT::i64);
SDValue Store =
DAG.getStore(Val.getValue(1), dl, Val, FIN,
@ -1487,8 +1476,8 @@ X86TargetLowering::LowerFORMAL_ARGUMENTS(SDValue Op, SelectionDAG &DAG) {
FIN = DAG.getNode(ISD::ADD, dl, getPointerTy(), RSFIN,
DAG.getIntPtrConstant(VarArgsFPOffset));
for (; NumXMMRegs != TotalNumXMMRegs; ++NumXMMRegs) {
unsigned VReg = AddLiveIn(MF, XMMArgRegs[NumXMMRegs],
X86::VR128RegisterClass);
unsigned VReg = MF.addLiveIn(XMMArgRegs[NumXMMRegs],
X86::VR128RegisterClass);
SDValue Val = DAG.getCopyFromReg(Root, dl, VReg, MVT::v4f32);
SDValue Store =
DAG.getStore(Val.getValue(1), dl, Val, FIN,