//
//===----------------------------------------------------------------------===//
-#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 <cassert>
using namespace llvm;
-void CallingConvEmitter::run(std::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<Record*> 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, MVT::ValueType ValVT,\n"
- << std::string(CCs[i]->getName().size()+13, ' ')
- << "MVT::ValueType LocVT, CCValAssign::LocInfo LocInfo,\n"
- << std::string(CCs[i]->getName().size()+13, ' ')
- << "unsigned 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);
}
-void CallingConvEmitter::EmitCallingConv(Record *CC, std::ostream &O) {
+void CallingConvEmitter::EmitCallingConv(Record *CC, raw_ostream &O) {
ListInit *CCActions = CC->getValueAsListInit("Actions");
Counter = 0;
O << "\n\nstatic bool " << CC->getName()
- << "(unsigned ValNo, MVT::ValueType ValVT,\n"
+ << "(unsigned ValNo, MVT ValVT,\n"
<< std::string(CC->getName().size()+13, ' ')
- << "MVT::ValueType LocVT, CCValAssign::LocInfo LocInfo,\n"
+ << "MVT LocVT, CCValAssign::LocInfo LocInfo,\n"
<< std::string(CC->getName().size()+13, ' ')
- << "unsigned ArgFlags, CCState &State) {\n";
+ << "ISD::ArgFlagsTy ArgFlags, CCState &State) {\n";
// Emit all of the actions, in order.
- for (unsigned i = 0, e = CCActions->getSize(); i != e; ++i) {
+ for (unsigned i = 0, e = CCActions->size(); i != e; ++i) {
O << "\n";
EmitAction(CCActions->getElementAsRecord(i), 2, O);
}
}
void CallingConvEmitter::EmitAction(Record *Action,
- unsigned Indent, std::ostream &O) {
+ unsigned Indent, raw_ostream &O) {
std::string IndentStr = std::string(Indent, ' ');
if (Action->isSubClassOf("CCPredicateAction")) {
if (Action->isSubClassOf("CCIfType")) {
ListInit *VTs = Action->getValueAsListInit("VTs");
- for (unsigned i = 0, e = VTs->getSize(); i != e; ++i) {
+ for (unsigned i = 0, e = VTs->size(); i != e; ++i) {
Record *VT = VTs->getElementAsRecord(i);
if (i != 0) O << " ||\n " << IndentStr;
O << "LocVT == " << getEnumName(getValueType(VT));
O << Action->getValueAsString("Predicate");
} else {
Action->dump();
- throw "Unknown CCPredicateAction!";
+ PrintFatalError("Unknown CCPredicateAction!");
}
O << ") {\n";
<< IndentStr << " return false;\n";
} else if (Action->isSubClassOf("CCAssignToReg")) {
ListInit *RegList = Action->getValueAsListInit("RegList");
- if (RegList->getSize() == 1) {
+ if (RegList->size() == 1) {
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) {
+ for (unsigned i = 0, e = RegList->size(); i != e; ++i) {
if (i != 0) O << ", ";
O << getQualifiedName(RegList->getElementAsRecord(i));
}
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";
+ O << IndentStr << " return false;\n";
+ O << IndentStr << "}\n";
+ } else if (Action->isSubClassOf("CCAssignToRegWithShadow")) {
+ ListInit *RegList = Action->getValueAsListInit("RegList");
+ ListInit *ShadowRegList = Action->getValueAsListInit("ShadowRegList");
+ if (!ShadowRegList->empty() && ShadowRegList->size() != RegList->size())
+ PrintFatalError("Invalid length of list of shadowed registers");
+
+ if (RegList->size() == 1) {
+ O << IndentStr << "if (unsigned Reg = State.AllocateReg(";
+ O << getQualifiedName(RegList->getElementAsRecord(0));
+ O << ", " << getQualifiedName(ShadowRegList->getElementAsRecord(0));
+ O << ")) {\n";
+ } else {
+ unsigned RegListNumber = ++Counter;
+ unsigned ShadowRegListNumber = ++Counter;
+
+ O << IndentStr << "static const MCPhysReg RegList" << RegListNumber
+ << "[] = {\n";
+ O << IndentStr << " ";
+ for (unsigned i = 0, e = RegList->size(); i != e; ++i) {
+ if (i != 0) O << ", ";
+ O << getQualifiedName(RegList->getElementAsRecord(i));
+ }
+ O << "\n" << IndentStr << "};\n";
+
+ O << IndentStr << "static const MCPhysReg RegList"
+ << ShadowRegListNumber << "[] = {\n";
+ O << IndentStr << " ";
+ for (unsigned i = 0, e = ShadowRegList->size(); i != e; ++i) {
+ if (i != 0) O << ", ";
+ O << getQualifiedName(ShadowRegList->getElementAsRecord(i));
+ }
+ O << "\n" << IndentStr << "};\n";
+
+ O << IndentStr << "if (unsigned Reg = State.AllocateReg(RegList"
+ << RegListNumber << ", " << "RegList" << ShadowRegListNumber
+ << ")) {\n";
}
O << IndentStr << " State.addLoc(CCValAssign::getReg(ValNo, ValVT, "
<< "Reg, LocVT, LocInfo));\n";
if (Size)
O << Size << ", ";
else
- O << "\n" << IndentStr << " State.getTarget().getTargetData()"
- "->getABITypeSize(MVT::getTypeForValueType(LocVT)), ";
+ O << "\n" << IndentStr
+ << " State.getMachineFunction().getDataLayout()."
+ "getTypeAllocSize(EVT(LocVT).getTypeForEVT(State.getContext())),"
+ " ";
if (Align)
O << Align;
else
- O << "\n" << IndentStr << " State.getTarget().getTargetData()"
- "->getABITypeAlignment(MVT::getTypeForValueType(LocVT))";
+ O << "\n" << IndentStr
+ << " State.getMachineFunction().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->size(); 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");
+ 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";
- O << IndentStr << "if (ArgFlags & ISD::ParamFlags::SExt)\n"
- << IndentStr << IndentStr << "LocInfo = CCValAssign::SExt;\n"
- << IndentStr << "else if (ArgFlags & ISD::ParamFlags::ZExt)\n"
- << IndentStr << IndentStr << "LocInfo = CCValAssign::ZExt;\n"
- << IndentStr << "else\n"
- << IndentStr << IndentStr << "LocInfo = CCValAssign::AExt;\n";
+ O << IndentStr << "LocInfo = CCValAssign::BCvt;\n";
+ } else if (Action->isSubClassOf("CCPassIndirect")) {
+ Record *DestTy = Action->getValueAsDef("DestTy");
+ O << IndentStr << "LocVT = " << getEnumName(getValueType(DestTy)) <<";\n";
+ O << IndentStr << "LocInfo = CCValAssign::Indirect;\n";
} else if (Action->isSubClassOf("CCPassByVal")) {
int Size = Action->getValueAsInt("Size");
int Align = Action->getValueAsInt("Align");
<< "State.HandleByVal(ValNo, ValVT, LocVT, LocInfo, "
<< Size << ", " << Align << ", ArgFlags);\n";
O << IndentStr << "return false;\n";
+ } else if (Action->isSubClassOf("CCCustom")) {
+ O << IndentStr
+ << "if (" << Action->getValueAsString("FuncName") << "(ValNo, ValVT, "
+ << "LocVT, LocInfo, ArgFlags, State))\n";
+ 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
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