RPCS3/llvm-mirror
1
0
Fork 0
mirror of https://github.com/RPCS3/llvm-mirror.git synced 2024-11-23 19:23:23 +01:00
Code Issues Projects Releases Wiki Activity

Add NumFixedArgs attribute to CallSDNode which indicates the number of fixed arguments in a vararg call.

Browse Source 
With the SVR4 ABI on PowerPC, vector arguments for vararg calls are passed differently depending on whether they are a fixed or a variable argument. Variable vector arguments always go into memory, fixed vector arguments are put 
into vector registers. If there are no free vector registers available, fixed vector arguments are put on the stack.

The NumFixedArgs attribute allows to decide for an argument in a vararg call whether it belongs to the fixed or variable portion of the parameter list.

llvm-svn: 74764
This commit is contained in:
Tilmann Scheller 2009-07-03 06:44:53 +00:00
parent 5d12ad7f9c
commit cea3c16aa5
16 changed files with 43 additions and 31 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
include/llvm/CodeGen/SelectionDAG.h
View File

@ -536,7 +536,8 @@ public:
///
SDValue getCall(unsigned CallingConv, DebugLoc dl, bool IsVarArgs,
bool IsTailCall, bool isInreg, SDVTList VTs,
const SDValue *Operands, unsigned NumOperands);
const SDValue *Operands, unsigned NumOperands,
unsigned NumFixedArgs);
/// getLoad - Loads are not normal binary operators: their result type is not
/// determined by their operands, and they produce a value AND a token chain.

11
include/llvm/CodeGen/SelectionDAGNodes.h
View File

@ -2257,6 +2257,7 @@ class CallSDNode : public SDNode {
unsigned CallingConv;
bool IsVarArg;
bool IsTailCall;
unsigned NumFixedArgs;
// We might eventually want a full-blown Attributes for the result; that
// will expand the size of the representation. At the moment we only
// need Inreg.
@ -2264,10 +2265,10 @@ class CallSDNode : public SDNode {
friend class SelectionDAG;
CallSDNode(unsigned cc, DebugLoc dl, bool isvararg, bool istailcall,
bool isinreg, SDVTList VTs, const SDValue *Operands,
unsigned numOperands)
unsigned numOperands, unsigned numFixedArgs)
: SDNode(ISD::CALL, dl, VTs, Operands, numOperands),
CallingConv(cc), IsVarArg(isvararg), IsTailCall(istailcall),
Inreg(isinreg) {}
NumFixedArgs(numFixedArgs), Inreg(isinreg) {}
public:
unsigned getCallingConv() const { return CallingConv; }
unsigned isVarArg() const { return IsVarArg; }
@ -2284,6 +2285,12 @@ public:
SDValue getCallee() const { return getOperand(1); }
unsigned getNumArgs() const { return (getNumOperands() - 2) / 2; }
unsigned getNumFixedArgs() const {
if (isVarArg())
return NumFixedArgs;
else
return getNumArgs();
}
SDValue getArg(unsigned i) const { return getOperand(2+2*i); }
SDValue getArgFlagsVal(unsigned i) const {
return getOperand(3+2*i);

6
include/llvm/Target/TargetLowering.h
View File

@ -1122,9 +1122,9 @@ public:
typedef std::vector<ArgListEntry> ArgListTy;
virtual std::pair<SDValue, SDValue>
LowerCallTo(SDValue Chain, const Type *RetTy, bool RetSExt, bool RetZExt,
bool isVarArg, bool isInreg, unsigned CallingConv,
bool isTailCall, SDValue Callee, ArgListTy &Args,
SelectionDAG &DAG, DebugLoc dl);
bool isVarArg, bool isInreg, unsigned NumFixedArgs,
unsigned CallingConv, bool isTailCall, SDValue Callee,
ArgListTy &Args, SelectionDAG &DAG, DebugLoc dl);
/// EmitTargetCodeForMemcpy - Emit target-specific code that performs a
/// memcpy. This can be used by targets to provide code sequences for cases

4
lib/CodeGen/SelectionDAG/LegalizeDAG.cpp
View File

@ -1900,7 +1900,7 @@ SDValue SelectionDAGLegalize::ExpandLibCall(RTLIB::Libcall LC, SDNode *Node,
const Type *RetTy = Node->getValueType(0).getTypeForMVT();
std::pair<SDValue, SDValue> CallInfo =
TLI.LowerCallTo(InChain, RetTy, isSigned, !isSigned, false, false,
CallingConv::C, false, Callee, Args, DAG,
0, CallingConv::C, false, Callee, Args, DAG,
Node->getDebugLoc());
// Legalize the call sequence, starting with the chain. This will advance
@ -2305,7 +2305,7 @@ void SelectionDAGLegalize::ExpandNode(SDNode *Node,
TargetLowering::ArgListTy Args;
std::pair<SDValue, SDValue> CallResult =
TLI.LowerCallTo(Node->getOperand(0), Type::VoidTy,
false, false, false, false, CallingConv::C, false,
false, false, false, false, 0, CallingConv::C, false,
DAG.getExternalSymbol("abort", TLI.getPointerTy()),
Args, DAG, dl);
Results.push_back(CallResult.second);

2
lib/CodeGen/SelectionDAG/LegalizeTypes.cpp
View File

@ -1006,7 +1006,7 @@ SDValue DAGTypeLegalizer::MakeLibCall(RTLIB::Libcall LC, MVT RetVT,
const Type *RetTy = RetVT.getTypeForMVT();
std::pair<SDValue,SDValue> CallInfo =
TLI.LowerCallTo(DAG.getEntryNode(), RetTy, isSigned, !isSigned, false,
false, CallingConv::C, false, Callee, Args, DAG, dl);
false, 0, CallingConv::C, false, Callee, Args, DAG, dl);
return CallInfo.first;
}

11
lib/CodeGen/SelectionDAG/SelectionDAG.cpp
View File

@ -3375,7 +3375,7 @@ SDValue SelectionDAG::getMemcpy(SDValue Chain, DebugLoc dl, SDValue Dst,
// FIXME: pass in DebugLoc
std::pair<SDValue,SDValue> CallResult =
TLI.LowerCallTo(Chain, Type::VoidTy,
false, false, false, false, CallingConv::C, false,
false, false, false, false, 0, CallingConv::C, false,
getExternalSymbol("memcpy", TLI.getPointerTy()),
Args, *this, dl);
return CallResult.second;
@ -3421,7 +3421,7 @@ SDValue SelectionDAG::getMemmove(SDValue Chain, DebugLoc dl, SDValue Dst,
// FIXME: pass in DebugLoc
std::pair<SDValue,SDValue> CallResult =
TLI.LowerCallTo(Chain, Type::VoidTy,
false, false, false, false, CallingConv::C, false,
false, false, false, false, 0, CallingConv::C, false,
getExternalSymbol("memmove", TLI.getPointerTy()),
Args, *this, dl);
return CallResult.second;
@ -3473,7 +3473,7 @@ SDValue SelectionDAG::getMemset(SDValue Chain, DebugLoc dl, SDValue Dst,
// FIXME: pass in DebugLoc
std::pair<SDValue,SDValue> CallResult =
TLI.LowerCallTo(Chain, Type::VoidTy,
false, false, false, false, CallingConv::C, false,
false, false, false, false, 0, CallingConv::C, false,
getExternalSymbol("memset", TLI.getPointerTy()),
Args, *this, dl);
return CallResult.second;
@ -3605,7 +3605,8 @@ SelectionDAG::getMemIntrinsicNode(unsigned Opcode, DebugLoc dl, SDVTList VTList,
SDValue
SelectionDAG::getCall(unsigned CallingConv, DebugLoc dl, bool IsVarArgs,
bool IsTailCall, bool IsInreg, SDVTList VTs,
const SDValue *Operands, unsigned NumOperands) {
const SDValue *Operands, unsigned NumOperands,
unsigned NumFixedArgs) {
// Do not include isTailCall in the folding set profile.
FoldingSetNodeID ID;
AddNodeIDNode(ID, ISD::CALL, VTs, Operands, NumOperands);
@ -3621,7 +3622,7 @@ SelectionDAG::getCall(unsigned CallingConv, DebugLoc dl, bool IsVarArgs,
}
SDNode *N = NodeAllocator.Allocate<CallSDNode>();
new (N) CallSDNode(CallingConv, dl, IsVarArgs, IsTailCall, IsInreg,
VTs, Operands, NumOperands);
VTs, Operands, NumOperands, NumFixedArgs);
CSEMap.InsertNode(N, IP);
AllNodes.push_back(N);
return SDValue(N, 0);

10
lib/CodeGen/SelectionDAG/SelectionDAGBuild.cpp
View File

@ -4416,7 +4416,7 @@ void SelectionDAGLowering::LowerCallTo(CallSite CS, SDValue Callee,
TLI.LowerCallTo(getRoot(), CS.getType(),
CS.paramHasAttr(0, Attribute::SExt),
CS.paramHasAttr(0, Attribute::ZExt), FTy->isVarArg(),
CS.paramHasAttr(0, Attribute::InReg),
CS.paramHasAttr(0, Attribute::InReg), FTy->getNumParams(),
CS.getCallingConv(),
IsTailCall && PerformTailCallOpt,
Callee, Args, DAG, getCurDebugLoc());
@ -5468,7 +5468,7 @@ void SelectionDAGLowering::visitMalloc(MallocInst &I) {
std::pair<SDValue,SDValue> Result =
TLI.LowerCallTo(getRoot(), I.getType(), false, false, false, false,
CallingConv::C, PerformTailCallOpt,
0, CallingConv::C, PerformTailCallOpt,
DAG.getExternalSymbol("malloc", IntPtr),
Args, DAG, getCurDebugLoc());
setValue(&I, Result.first); // Pointers always fit in registers
@ -5484,7 +5484,7 @@ void SelectionDAGLowering::visitFree(FreeInst &I) {
MVT IntPtr = TLI.getPointerTy();
std::pair<SDValue,SDValue> Result =
TLI.LowerCallTo(getRoot(), Type::VoidTy, false, false, false, false,
CallingConv::C, PerformTailCallOpt,
0, CallingConv::C, PerformTailCallOpt,
DAG.getExternalSymbol("free", IntPtr), Args, DAG,
getCurDebugLoc());
DAG.setRoot(Result.second);
@ -5657,7 +5657,7 @@ void TargetLowering::LowerArguments(Function &F, SelectionDAG &DAG,
std::pair<SDValue, SDValue>
TargetLowering::LowerCallTo(SDValue Chain, const Type *RetTy,
bool RetSExt, bool RetZExt, bool isVarArg,
bool isInreg,
bool isInreg, unsigned NumFixedArgs,
unsigned CallingConv, bool isTailCall,
SDValue Callee,
ArgListTy &Args, SelectionDAG &DAG, DebugLoc dl) {
@ -5755,7 +5755,7 @@ TargetLowering::LowerCallTo(SDValue Chain, const Type *RetTy,
isVarArg, isTailCall, isInreg,
DAG.getVTList(&LoweredRetTys[0],
LoweredRetTys.size()),
&Ops[0], Ops.size()
&Ops[0], Ops.size(), NumFixedArgs
);
Chain = Res.getValue(LoweredRetTys.size() - 1);

2
lib/Target/ARM/ARMISelLowering.cpp
View File

@ -1159,7 +1159,7 @@ ARMTargetLowering::LowerToTLSGeneralDynamicModel(GlobalAddressSDNode *GA,
// FIXME: is there useful debug info available here?
std::pair<SDValue, SDValue> CallResult =
LowerCallTo(Chain, (const Type *) Type::Int32Ty, false, false, false, false,
CallingConv::C, false,
0, CallingConv::C, false,
DAG.getExternalSymbol("__tls_get_addr", PtrVT), Args, DAG, dl);
return CallResult.first;
}

3
lib/Target/Alpha/AlphaISelLowering.cpp
View File

@ -365,7 +365,8 @@ static SDValue LowerRET(SDValue Op, SelectionDAG &DAG) {
std::pair<SDValue, SDValue>
AlphaTargetLowering::LowerCallTo(SDValue Chain, const Type *RetTy,
bool RetSExt, bool RetZExt, bool isVarArg,
bool isInreg, unsigned CallingConv,
bool isInreg, unsigned NumFixedArgs,
unsigned CallingConv,
bool isTailCall, SDValue Callee,
ArgListTy &Args, SelectionDAG &DAG,
DebugLoc dl) {

6
lib/Target/Alpha/AlphaISelLowering.h
View File

@ -86,9 +86,9 @@ namespace llvm {
/// actual call.
virtual std::pair<SDValue, SDValue>
LowerCallTo(SDValue Chain, const Type *RetTy, bool RetSExt, bool RetZExt,
bool isVarArg, bool isInreg, unsigned CC, bool isTailCall,
SDValue Callee, ArgListTy &Args, SelectionDAG &DAG,
DebugLoc dl);
bool isVarArg, bool isInreg, unsigned NumFixedArgs, unsigned CC,
bool isTailCall, SDValue Callee, ArgListTy &Args,
SelectionDAG &DAG, DebugLoc dl);
ConstraintType getConstraintType(const std::string &Constraint) const;

2
lib/Target/CellSPU/SPUISelLowering.cpp
View File

@ -113,7 +113,7 @@ namespace {
const Type *RetTy = Op.getNode()->getValueType(0).getTypeForMVT();
std::pair<SDValue, SDValue> CallInfo =
TLI.LowerCallTo(InChain, RetTy, isSigned, !isSigned, false, false,
CallingConv::C, false, Callee, Args, DAG,
0, CallingConv::C, false, Callee, Args, DAG,
Op.getDebugLoc());
return CallInfo.first;

3
lib/Target/IA64/IA64ISelLowering.cpp
View File

@ -315,7 +315,8 @@ void IA64TargetLowering::LowerArguments(Function &F, SelectionDAG &DAG,
std::pair<SDValue, SDValue>
IA64TargetLowering::LowerCallTo(SDValue Chain, const Type *RetTy,
bool RetSExt, bool RetZExt, bool isVarArg,
bool isInreg, unsigned CallingConv,
bool isInreg, unsigned NumFixedArgs,
unsigned CallingConv,
bool isTailCall, SDValue Callee,
ArgListTy &Args, SelectionDAG &DAG,
DebugLoc dl) {

2
lib/Target/IA64/IA64ISelLowering.h
View File

@ -62,7 +62,7 @@ namespace llvm {
virtual std::pair<SDValue, SDValue>
LowerCallTo(SDValue Chain, const Type *RetTy,
bool RetSExt, bool RetZExt, bool isVarArg, bool isInreg,
unsigned CC, bool isTailCall,
unsigned NumFixedArgs, unsigned CC, bool isTailCall,
SDValue Callee, ArgListTy &Args, SelectionDAG &DAG,
DebugLoc dl);

5
lib/Target/PIC16/PIC16ISelLowering.cpp
View File

@ -399,7 +399,7 @@ PIC16TargetLowering::MakePIC16Libcall(PIC16ISD::PIC16Libcall Call,
const Type *RetTy = RetVT.getTypeForMVT();
std::pair<SDValue,SDValue> CallInfo =
LowerCallTo(DAG.getEntryNode(), RetTy, isSigned, !isSigned, false,
false, CallingConv::C, false, Callee, Args, DAG, dl);
false, 0, CallingConv::C, false, Callee, Args, DAG, dl);
return CallInfo.first;
}
@ -1302,7 +1302,8 @@ SDValue PIC16TargetLowering::LegalizeCALL(SDValue Op, SelectionDAG &DAG) {
// Generate new call with all the operands legal
return DAG.getCall(TheCall->getCallingConv(), dl,
TheCall->isVarArg(), TheCall->isTailCall(),
TheCall->isInreg(), VTs, &Ops[0], Ops.size());
TheCall->isInreg(), VTs, &Ops[0], Ops.size(),
TheCall->getNumFixedArgs());
}
void PIC16TargetLowering::

2
lib/Target/PowerPC/PPCISelLowering.cpp
View File

@ -1267,7 +1267,7 @@ SDValue PPCTargetLowering::LowerTRAMPOLINE(SDValue Op, SelectionDAG &DAG) {
// Lower to a call to __trampoline_setup(Trmp, TrampSize, FPtr, ctx_reg)
std::pair<SDValue, SDValue> CallResult =
LowerCallTo(Chain, Op.getValueType().getTypeForMVT(), false, false,
false, false, CallingConv::C, false,
false, false, 0, CallingConv::C, false,
DAG.getExternalSymbol("__trampoline_setup", PtrVT),
Args, DAG, dl);

2
lib/Target/X86/X86ISelLowering.cpp
View File

@ -5813,7 +5813,7 @@ X86TargetLowering::EmitTargetCodeForMemset(SelectionDAG &DAG, DebugLoc dl,
Args.push_back(Entry);
std::pair<SDValue,SDValue> CallResult =
LowerCallTo(Chain, Type::VoidTy, false, false, false, false,
CallingConv::C, false,
0, CallingConv::C, false,
DAG.getExternalSymbol(bzeroEntry, IntPtr), Args, DAG, dl);
return CallResult.second;
}