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add TAILCALL node

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21956 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2005-05-13 18:40:17 +00:00
parent 069b96380f
commit 4c1eae9fb3
2 changed files with 7 additions and 5 deletions
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8
include/llvm/CodeGen/SelectionDAG.h
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@ -129,8 +129,8 @@ public:
/// getCall - Note that this destroys the vector of RetVals passed in. /// getCall - Note that this destroys the vector of RetVals passed in.
/// ///
SDNode *getCall(std::vector<MVT::ValueType> &RetVals, SDOperand Chain, SDNode *getCall(std::vector<MVT::ValueType> &RetVals, SDOperand Chain,
SDOperand Callee) { SDOperand Callee, bool isTailCall = false) {
SDNode *NN = new SDNode(ISD::CALL, Chain, Callee); SDNode *NN = new SDNode(isTailCall ? ISD::TAILCALL : ISD::CALL, Chain, Callee);
NN->setValueTypes(RetVals); NN->setValueTypes(RetVals);
AllNodes.push_back(NN); AllNodes.push_back(NN);
return NN; return NN;
@ -140,10 +140,10 @@ public:
/// where arguments are passed in physical registers. This destroys the /// where arguments are passed in physical registers. This destroys the
/// RetVals and ArgsInRegs vectors. /// RetVals and ArgsInRegs vectors.
SDNode *getCall(std::vector<MVT::ValueType> &RetVals, SDOperand Chain, SDNode *getCall(std::vector<MVT::ValueType> &RetVals, SDOperand Chain,
SDOperand Callee, std::vector<SDOperand> &ArgsInRegs) { SDOperand Callee, std::vector<SDOperand> &ArgsInRegs, bool isTailCall = false) {
ArgsInRegs.insert(ArgsInRegs.begin(), Callee); ArgsInRegs.insert(ArgsInRegs.begin(), Callee);
ArgsInRegs.insert(ArgsInRegs.begin(), Chain); ArgsInRegs.insert(ArgsInRegs.begin(), Chain);
SDNode *NN = new SDNode(ISD::CALL, ArgsInRegs); SDNode *NN = new SDNode(isTailCall ? ISD::TAILCALL : ISD::CALL, ArgsInRegs);
NN->setValueTypes(RetVals); NN->setValueTypes(RetVals);
AllNodes.push_back(NN); AllNodes.push_back(NN);
return NN; return NN;

4
include/llvm/CodeGen/SelectionDAGNodes.h
View File

@ -234,8 +234,10 @@ namespace ISD {
// CALL - Call to a function pointer. The first operand is the chain, the // CALL - Call to a function pointer. The first operand is the chain, the
// second is the destination function pointer (a GlobalAddress for a direct // second is the destination function pointer (a GlobalAddress for a direct
// call). Arguments have already been lowered to explicit DAGs according to // call). Arguments have already been lowered to explicit DAGs according to
// the calling convention in effect here. // the calling convention in effect here. TAILCALL is the same as CALL, but
// the callee is known not to access the stack of the caller.
CALL, CALL,
TAILCALL,
// MEMSET/MEMCPY/MEMMOVE - The first operand is the chain, and the rest // MEMSET/MEMCPY/MEMMOVE - The first operand is the chain, and the rest
// correspond to the operands of the LLVM intrinsic functions. The only // correspond to the operands of the LLVM intrinsic functions. The only