X-Git-Url: http://demsky.eecs.uci.edu/git/?a=blobdiff_plain;f=utils%2FTableGen%2FCallingConvEmitter.cpp;h=051a7e98141407bb98b5c986e2748fa4d9801a79;hb=bc55462859711bd81a38fc50203c2b696e10e092;hp=7643609b8724a1ab4bff309b30a963a819725267;hpb=55e958746901ef8c04f370e746a7538137d0bcf8;p=oota-llvm.git diff --git a/utils/TableGen/CallingConvEmitter.cpp b/utils/TableGen/CallingConvEmitter.cpp index 7643609b872..051a7e98141 100644 --- a/utils/TableGen/CallingConvEmitter.cpp +++ b/utils/TableGen/CallingConvEmitter.cpp @@ -12,30 +12,49 @@ // //===----------------------------------------------------------------------===// -#include "CallingConvEmitter.h" -#include "Record.h" #include "CodeGenTarget.h" +#include "llvm/TableGen/Error.h" +#include "llvm/TableGen/Record.h" +#include "llvm/TableGen/TableGenBackend.h" +#include using namespace llvm; -void CallingConvEmitter::run(raw_ostream &O) { - EmitSourceFileHeader("Calling Convention Implementation Fragment", O); +namespace { +class CallingConvEmitter { + RecordKeeper &Records; +public: + explicit CallingConvEmitter(RecordKeeper &R) : Records(R) {} + + void run(raw_ostream &o); +private: + void EmitCallingConv(Record *CC, raw_ostream &O); + void EmitAction(Record *Action, unsigned Indent, raw_ostream &O); + unsigned Counter; +}; +} // End anonymous namespace + +void CallingConvEmitter::run(raw_ostream &O) { std::vector CCs = Records.getAllDerivedDefinitions("CallingConv"); - - // Emit prototypes for all of the CC's so that they can forward ref each - // other. + + // Emit prototypes for all of the non-custom CC's so that they can forward ref + // each other. for (unsigned i = 0, e = CCs.size(); i != e; ++i) { - O << "static bool " << CCs[i]->getName() - << "(unsigned ValNo, EVT ValVT,\n" - << std::string(CCs[i]->getName().size()+13, ' ') - << "EVT LocVT, CCValAssign::LocInfo LocInfo,\n" - << std::string(CCs[i]->getName().size()+13, ' ') - << "ISD::ArgFlagsTy ArgFlags, CCState &State);\n"; + if (!CCs[i]->getValueAsBit("Custom")) { + O << "static bool " << CCs[i]->getName() + << "(unsigned ValNo, MVT ValVT,\n" + << std::string(CCs[i]->getName().size() + 13, ' ') + << "MVT LocVT, CCValAssign::LocInfo LocInfo,\n" + << std::string(CCs[i]->getName().size() + 13, ' ') + << "ISD::ArgFlagsTy ArgFlags, CCState &State);\n"; + } + } + + // Emit each non-custom calling convention description in full. + for (unsigned i = 0, e = CCs.size(); i != e; ++i) { + if (!CCs[i]->getValueAsBit("Custom")) + EmitCallingConv(CCs[i], O); } - - // Emit each calling convention description in full. - for (unsigned i = 0, e = CCs.size(); i != e; ++i) - EmitCallingConv(CCs[i], O); } @@ -44,9 +63,9 @@ void CallingConvEmitter::EmitCallingConv(Record *CC, raw_ostream &O) { Counter = 0; O << "\n\nstatic bool " << CC->getName() - << "(unsigned ValNo, EVT ValVT,\n" + << "(unsigned ValNo, MVT ValVT,\n" << std::string(CC->getName().size()+13, ' ') - << "EVT LocVT, CCValAssign::LocInfo LocInfo,\n" + << "MVT LocVT, CCValAssign::LocInfo LocInfo,\n" << std::string(CC->getName().size()+13, ' ') << "ISD::ArgFlagsTy ArgFlags, CCState &State) {\n"; // Emit all of the actions, in order. @@ -78,7 +97,7 @@ void CallingConvEmitter::EmitAction(Record *Action, O << Action->getValueAsString("Predicate"); } else { Action->dump(); - throw "Unknown CCPredicateAction!"; + PrintFatalError("Unknown CCPredicateAction!"); } O << ") {\n"; @@ -96,7 +115,7 @@ void CallingConvEmitter::EmitAction(Record *Action, O << IndentStr << "if (unsigned Reg = State.AllocateReg("; O << getQualifiedName(RegList->getElementAsRecord(0)) << ")) {\n"; } else { - O << IndentStr << "static const unsigned RegList" << ++Counter + O << IndentStr << "static const MCPhysReg RegList" << ++Counter << "[] = {\n"; O << IndentStr << " "; for (unsigned i = 0, e = RegList->getSize(); i != e; ++i) { @@ -105,7 +124,7 @@ void CallingConvEmitter::EmitAction(Record *Action, } O << "\n" << IndentStr << "};\n"; O << IndentStr << "if (unsigned Reg = State.AllocateReg(RegList" - << Counter << ", " << RegList->getSize() << ")) {\n"; + << Counter << ")) {\n"; } O << IndentStr << " State.addLoc(CCValAssign::getReg(ValNo, ValVT, " << "Reg, LocVT, LocInfo));\n"; @@ -116,7 +135,7 @@ void CallingConvEmitter::EmitAction(Record *Action, ListInit *ShadowRegList = Action->getValueAsListInit("ShadowRegList"); if (ShadowRegList->getSize() >0 && ShadowRegList->getSize() != RegList->getSize()) - throw "Invalid length of list of shadowed registers"; + PrintFatalError("Invalid length of list of shadowed registers"); if (RegList->getSize() == 1) { O << IndentStr << "if (unsigned Reg = State.AllocateReg("; @@ -127,7 +146,7 @@ void CallingConvEmitter::EmitAction(Record *Action, unsigned RegListNumber = ++Counter; unsigned ShadowRegListNumber = ++Counter; - O << IndentStr << "static const unsigned RegList" << RegListNumber + O << IndentStr << "static const MCPhysReg RegList" << RegListNumber << "[] = {\n"; O << IndentStr << " "; for (unsigned i = 0, e = RegList->getSize(); i != e; ++i) { @@ -136,7 +155,7 @@ void CallingConvEmitter::EmitAction(Record *Action, } O << "\n" << IndentStr << "};\n"; - O << IndentStr << "static const unsigned RegList" + O << IndentStr << "static const MCPhysReg RegList" << ShadowRegListNumber << "[] = {\n"; O << IndentStr << " "; for (unsigned i = 0, e = ShadowRegList->getSize(); i != e; ++i) { @@ -147,7 +166,7 @@ void CallingConvEmitter::EmitAction(Record *Action, O << IndentStr << "if (unsigned Reg = State.AllocateReg(RegList" << RegListNumber << ", " << "RegList" << ShadowRegListNumber - << ", " << RegList->getSize() << ")) {\n"; + << ")) {\n"; } O << IndentStr << " State.addLoc(CCValAssign::getReg(ValNo, ValVT, " << "Reg, LocVT, LocInfo));\n"; @@ -162,28 +181,73 @@ void CallingConvEmitter::EmitAction(Record *Action, if (Size) O << Size << ", "; else - O << "\n" << IndentStr << " State.getTarget().getTargetData()" - "->getTypeAllocSize(LocVT.getTypeForEVT(State.getContext())), "; + O << "\n" << IndentStr + << " State.getMachineFunction().getTarget().getDataLayout()" + "->getTypeAllocSize(EVT(LocVT).getTypeForEVT(State.getContext()))," + " "; if (Align) O << Align; else - O << "\n" << IndentStr << " State.getTarget().getTargetData()" - "->getABITypeAlignment(LocVT.getTypeForEVT(State.getContext()))"; - if (Action->isSubClassOf("CCAssignToStackWithShadow")) - O << ", " << getQualifiedName(Action->getValueAsDef("ShadowReg")); + O << "\n" << IndentStr + << " State.getMachineFunction().getTarget().getDataLayout()" + "->getABITypeAlignment(EVT(LocVT).getTypeForEVT(State.getContext()" + "))"; O << ");\n" << IndentStr << "State.addLoc(CCValAssign::getMem(ValNo, ValVT, Offset" << Counter << ", LocVT, LocInfo));\n"; O << IndentStr << "return false;\n"; + } else if (Action->isSubClassOf("CCAssignToStackWithShadow")) { + int Size = Action->getValueAsInt("Size"); + int Align = Action->getValueAsInt("Align"); + ListInit *ShadowRegList = Action->getValueAsListInit("ShadowRegList"); + + unsigned ShadowRegListNumber = ++Counter; + + O << IndentStr << "static const MCPhysReg ShadowRegList" + << ShadowRegListNumber << "[] = {\n"; + O << IndentStr << " "; + for (unsigned i = 0, e = ShadowRegList->getSize(); i != e; ++i) { + if (i != 0) O << ", "; + O << getQualifiedName(ShadowRegList->getElementAsRecord(i)); + } + O << "\n" << IndentStr << "};\n"; + + O << IndentStr << "unsigned Offset" << ++Counter + << " = State.AllocateStack(" + << Size << ", " << Align << ", " + << "ShadowRegList" << ShadowRegListNumber << ");\n"; + O << IndentStr << "State.addLoc(CCValAssign::getMem(ValNo, ValVT, Offset" + << Counter << ", LocVT, LocInfo));\n"; + O << IndentStr << "return false;\n"; } else if (Action->isSubClassOf("CCPromoteToType")) { Record *DestTy = Action->getValueAsDef("DestTy"); - O << IndentStr << "LocVT = " << getEnumName(getValueType(DestTy)) <<";\n"; - O << IndentStr << "if (ArgFlags.isSExt())\n" - << IndentStr << IndentStr << "LocInfo = CCValAssign::SExt;\n" - << IndentStr << "else if (ArgFlags.isZExt())\n" - << IndentStr << IndentStr << "LocInfo = CCValAssign::ZExt;\n" - << IndentStr << "else\n" - << IndentStr << IndentStr << "LocInfo = CCValAssign::AExt;\n"; + MVT::SimpleValueType DestVT = getValueType(DestTy); + O << IndentStr << "LocVT = " << getEnumName(DestVT) <<";\n"; + if (MVT(DestVT).isFloatingPoint()) { + O << IndentStr << "LocInfo = CCValAssign::FPExt;\n"; + } else { + O << IndentStr << "if (ArgFlags.isSExt())\n" + << IndentStr << IndentStr << "LocInfo = CCValAssign::SExt;\n" + << IndentStr << "else if (ArgFlags.isZExt())\n" + << IndentStr << IndentStr << "LocInfo = CCValAssign::ZExt;\n" + << IndentStr << "else\n" + << IndentStr << IndentStr << "LocInfo = CCValAssign::AExt;\n"; + } + } else if (Action->isSubClassOf("CCPromoteToUpperBitsInType")) { + Record *DestTy = Action->getValueAsDef("DestTy"); + MVT::SimpleValueType DestVT = getValueType(DestTy); + O << IndentStr << "LocVT = " << getEnumName(DestVT) << ";\n"; + if (MVT(DestVT).isFloatingPoint()) { + PrintFatalError("CCPromoteToUpperBitsInType does not handle floating " + "point"); + } else { + O << IndentStr << "if (ArgFlags.isSExt())\n" + << IndentStr << IndentStr << "LocInfo = CCValAssign::SExtUpper;\n" + << IndentStr << "else if (ArgFlags.isZExt())\n" + << IndentStr << IndentStr << "LocInfo = CCValAssign::ZExtUpper;\n" + << IndentStr << "else\n" + << IndentStr << IndentStr << "LocInfo = CCValAssign::AExtUpper;\n"; + } } else if (Action->isSubClassOf("CCBitConvertToType")) { Record *DestTy = Action->getValueAsDef("DestTy"); O << IndentStr << "LocVT = " << getEnumName(getValueType(DestTy)) <<";\n"; @@ -206,7 +270,16 @@ void CallingConvEmitter::EmitAction(Record *Action, O << IndentStr << IndentStr << "return false;\n"; } else { Action->dump(); - throw "Unknown CCAction!"; + PrintFatalError("Unknown CCAction!"); } } } + +namespace llvm { + +void EmitCallingConv(RecordKeeper &RK, raw_ostream &OS) { + emitSourceFileHeader("Calling Convention Implementation Fragment", OS); + CallingConvEmitter(RK).run(OS); +} + +} // End llvm namespace