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Work around a nasty tblgen bug where it doesn't add operands for varargs

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nodes correctly.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28745 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2006-06-10 01:15:02 +00:00
parent 4a45abf66e
commit cf00631719
1 changed files with 157 additions and 0 deletions
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157
lib/Target/PowerPC/PPCISelDAGToDAG.cpp
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@ -152,6 +152,8 @@ namespace {
private:
SDOperand SelectSETCC(SDOperand Op);
void MySelect_PPCbctrl(SDOperand &Result, SDOperand N);
void MySelect_PPCcall(SDOperand &Result, SDOperand N);
};
}
@ -1093,6 +1095,7 @@ void PPCDAGToDAGISel::Select(SDOperand &Result, SDOperand Op) {
return;
}
case ISD::BRIND: {
// FIXME: Should custom lower this.
SDOperand Chain, Target;
Select(Chain, N->getOperand(0));
Select(Target,N->getOperand(1));
@ -1101,12 +1104,166 @@ void PPCDAGToDAGISel::Select(SDOperand &Result, SDOperand Op) {
Result = CurDAG->SelectNodeTo(N, PPC::BCTR, MVT::Other, Chain);
return;
}
// FIXME: These are manually selected because tblgen isn't handling varargs
// nodes correctly.
case PPCISD::BCTRL: MySelect_PPCbctrl(Result, Op); return;
case PPCISD::CALL: MySelect_PPCcall(Result, Op); return;
}
SelectCode(Result, Op);
}
// FIXME: This is manually selected because tblgen isn't handling varargs nodes
// correctly.
void PPCDAGToDAGISel::MySelect_PPCbctrl(SDOperand &Result, SDOperand N) {
SDOperand Chain(0, 0);
SDOperand InFlag(0, 0);
SDNode *ResNode;
bool hasFlag =
N.getOperand(N.getNumOperands()-1).getValueType() == MVT::Flag;
std::vector<SDOperand> Ops;
// Push varargs arguments, including optional flag.
for (unsigned i = 1, e = N.getNumOperands()-hasFlag; i != e; ++i) {
Select(Chain, N.getOperand(i));
Ops.push_back(Chain);
}
Select(Chain, N.getOperand(0));
Ops.push_back(Chain);
if (hasFlag) {
Select(Chain, N.getOperand(N.getNumOperands()-1));
Ops.push_back(Chain);
}
ResNode = CurDAG->getTargetNode(PPC::BCTRL, MVT::Other, MVT::Flag, Ops);
Chain = SDOperand(ResNode, 0);
InFlag = SDOperand(ResNode, 1);
SelectionDAG::InsertISelMapEntry(CodeGenMap, N.Val, 0, Chain.Val,
Chain.ResNo);
SelectionDAG::InsertISelMapEntry(CodeGenMap, N.Val, 1, InFlag.Val,
InFlag.ResNo);
Result = SDOperand(ResNode, N.ResNo);
return;
}
// FIXME: This is manually selected because tblgen isn't handling varargs nodes
// correctly.
void PPCDAGToDAGISel::MySelect_PPCcall(SDOperand &Result, SDOperand N) {
SDOperand Chain(0, 0);
SDOperand InFlag(0, 0);
SDOperand N1(0, 0);
SDOperand Tmp0(0, 0);
SDNode *ResNode;
Chain = N.getOperand(0);
N1 = N.getOperand(1);
// Pattern: (PPCcall:void (imm:i32):$func)
// Emits: (BLA:void (imm:i32):$func)
// Pattern complexity = 4 cost = 1
if (N1.getOpcode() == ISD::Constant) {
unsigned Tmp0C = (unsigned)cast<ConstantSDNode>(N1)->getValue();
std::vector<SDOperand> Ops;
Ops.push_back(CurDAG->getTargetConstant(Tmp0C, MVT::i32));
bool hasFlag =
N.getOperand(N.getNumOperands()-1).getValueType() == MVT::Flag;
// Push varargs arguments, not including optional flag.
for (unsigned i = 2, e = N.getNumOperands()-hasFlag; i != e; ++i) {
Select(Chain, N.getOperand(i));
Ops.push_back(Chain);
}
Select(Chain, N.getOperand(0));
Ops.push_back(Chain);
if (hasFlag) {
Select(Chain, N.getOperand(N.getNumOperands()-1));
Ops.push_back(Chain);
}
ResNode = CurDAG->getTargetNode(PPC::BLA, MVT::Other, MVT::Flag, Ops);
Chain = SDOperand(ResNode, 0);
InFlag = SDOperand(ResNode, 1);
SelectionDAG::InsertISelMapEntry(CodeGenMap, N.Val, 0, Chain.Val, Chain.ResNo);
SelectionDAG::InsertISelMapEntry(CodeGenMap, N.Val, 1, InFlag.Val, InFlag.ResNo);
Result = SDOperand(ResNode, N.ResNo);
return;
}
// Pattern: (PPCcall:void (tglobaladdr:i32):$dst)
// Emits: (BL:void (tglobaladdr:i32):$dst)
// Pattern complexity = 4 cost = 1
if (N1.getOpcode() == ISD::TargetGlobalAddress) {
std::vector<SDOperand> Ops;
Ops.push_back(N1);
bool hasFlag =
N.getOperand(N.getNumOperands()-1).getValueType() == MVT::Flag;
// Push varargs arguments, not including optional flag.
for (unsigned i = 2, e = N.getNumOperands()-hasFlag; i != e; ++i) {
Select(Chain, N.getOperand(i));
Ops.push_back(Chain);
}
Select(Chain, N.getOperand(0));
Ops.push_back(Chain);
if (hasFlag) {
Select(Chain, N.getOperand(N.getNumOperands()-1));
Ops.push_back(Chain);
}
ResNode = CurDAG->getTargetNode(PPC::BL, MVT::Other, MVT::Flag, Ops);
Chain = SDOperand(ResNode, 0);
InFlag = SDOperand(ResNode, 1);
SelectionDAG::InsertISelMapEntry(CodeGenMap, N.Val, 0, Chain.Val, Chain.ResNo);
SelectionDAG::InsertISelMapEntry(CodeGenMap, N.Val, 1, InFlag.Val, InFlag.ResNo);
Result = SDOperand(ResNode, N.ResNo);
return;
}
// Pattern: (PPCcall:void (texternalsym:i32):$dst)
// Emits: (BL:void (texternalsym:i32):$dst)
// Pattern complexity = 4 cost = 1
if (N1.getOpcode() == ISD::TargetExternalSymbol) {
std::vector<SDOperand> Ops;
Ops.push_back(N1);
bool hasFlag =
N.getOperand(N.getNumOperands()-1).getValueType() == MVT::Flag;
// Push varargs arguments, not including optional flag.
for (unsigned i = 2, e = N.getNumOperands()-hasFlag; i != e; ++i) {
Select(Chain, N.getOperand(i));
Ops.push_back(Chain);
}
Select(Chain, N.getOperand(0));
Ops.push_back(Chain);
if (hasFlag) {
Select(Chain, N.getOperand(N.getNumOperands()-1));
Ops.push_back(Chain);
}
ResNode = CurDAG->getTargetNode(PPC::BL, MVT::Other, MVT::Flag, Ops);
Chain = SDOperand(ResNode, 0);
InFlag = SDOperand(ResNode, 1);
SelectionDAG::InsertISelMapEntry(CodeGenMap, N.Val, 0, Chain.Val, Chain.ResNo);
SelectionDAG::InsertISelMapEntry(CodeGenMap, N.Val, 1, InFlag.Val, InFlag.ResNo);
Result = SDOperand(ResNode, N.ResNo);
return;
}
std::cerr << "Cannot yet select: ";
N.Val->dump(CurDAG);
std::cerr << '\n';
abort();
}
/// createPPCISelDag - This pass converts a legalized DAG into a
/// PowerPC-specific DAG, ready for instruction scheduling.
///