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Parse mod/ref properties, autogen mod/ref information

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llvm-svn: 26669
This commit is contained in:
Chris Lattner 2006-03-09 22:30:49 +00:00
parent 78e0ab4ef4
commit 67900dea61
2 changed files with 47 additions and 0 deletions
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45
utils/TableGen/IntrinsicEmitter.cpp
View File

@ -26,6 +26,7 @@ std::vector<CodeGenIntrinsic> llvm::LoadIntrinsics(const RecordKeeper &RC) {
CodeGenIntrinsic::CodeGenIntrinsic(Record *R) {
std::string DefName = R->getName();
ModRef = WriteMem;
if (DefName.size() <= 4 ||
std::string(DefName.begin(), DefName.begin()+4) != "int_")
@ -54,6 +55,29 @@ CodeGenIntrinsic::CodeGenIntrinsic(Record *R) {
}
if (ArgTypes.size() == 0)
throw "Intrinsic '"+DefName+"' needs at least a type for the ret value!";
// Parse the intrinsic properties.
ListInit *PropList = R->getValueAsListInit("Properties");
for (unsigned i = 0, e = PropList->getSize(); i != e; ++i) {
DefInit *DI = dynamic_cast<DefInit*>(PropList->getElement(i));
assert(DI && "Invalid list type!");
Record *Property = DI->getDef();
assert(Property->isSubClassOf("IntrinsicProperty") &&
"Expected a property!");
if (Property->getName() == "InstrNoMem")
ModRef = NoMem;
else if (Property->getName() == "InstrReadArgMem")
ModRef = ReadArgMem;
else if (Property->getName() == "IntrReadMem")
ModRef = ReadMem;
else if (Property->getName() == "InstrWriteArgMem")
ModRef = WriteArgMem;
else if (Property->getName() == "IntrWriteMem")
ModRef = WriteMem;
else
assert(0 && "Unknown property!");
}
}
//===----------------------------------------------------------------------===//
@ -73,6 +97,9 @@ void IntrinsicEmitter::run(std::ostream &OS) {
// Emit the intrinsic verifier.
EmitVerifier(Ints, OS);
// Emit mod/ref info for each function.
EmitModRefInfo(Ints, OS);
}
void IntrinsicEmitter::EmitEnumInfo(const std::vector<CodeGenIntrinsic> &Ints,
@ -146,3 +173,21 @@ void IntrinsicEmitter::EmitVerifier(const std::vector<CodeGenIntrinsic> &Ints,
OS << "#endif\n\n";
}
void IntrinsicEmitter::EmitModRefInfo(const std::vector<CodeGenIntrinsic> &Ints,
std::ostream &OS) {
OS << "// BasicAliasAnalysis code.\n";
OS << "#ifdef GET_MODREF_BEHAVIOR\n";
for (unsigned i = 0, e = Ints.size(); i != e; ++i) {
switch (Ints[i].ModRef) {
default: break;
case CodeGenIntrinsic::NoMem:
OS << " NoMemoryTable.push_back(\"" << Ints[i].Name << "\");\n";
break;
case CodeGenIntrinsic::ReadArgMem:
case CodeGenIntrinsic::ReadMem:
OS << " OnlyReadsMemoryTable.push_back(\"" << Ints[i].Name << "\");\n";
break;
}
}
OS << "#endif\n\n";
}

2
utils/TableGen/IntrinsicEmitter.h
View File

@ -33,6 +33,8 @@ namespace llvm {
std::ostream &OS);
void EmitVerifier(const std::vector<CodeGenIntrinsic> &Ints,
std::ostream &OS);
void EmitModRefInfo(const std::vector<CodeGenIntrinsic> &Ints,
std::ostream &OS);
};
} // End llvm namespace