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Add error checking code to the node type parser. Start the instruction pattern

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@7632 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner
2003-08-06 06:16:35 +00:00
parent faca5ab189
commit 2787d1a34b
4 changed files with 68 additions and 14 deletions
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utils/TableGen/InstrSelectorEmitter.cpp
+29 -3
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@@ -24,7 +24,6 @@ NodeType::ArgResultTypes NodeType::Translate(Record *R) {
///
void InstrSelectorEmitter::ProcessNodeTypes() {
std::vector<Record*> Nodes = Records.getAllDerivedDefinitions("DagNode");
for (unsigned i = 0, e = Nodes.size(); i != e; ++i) {
Record *Node = Nodes[i];
@@ -36,21 +35,48 @@ void InstrSelectorEmitter::ProcessNodeTypes() {
ListInit *Args = Node->getValueAsListInit("ArgTypes");
std::vector<NodeType::ArgResultTypes> ArgTypes;
for (unsigned a = 0, e = Args->getSize(); a != e; ++a)
for (unsigned a = 0, e = Args->getSize(); a != e; ++a) {
if (DefInit *DI = dynamic_cast<DefInit*>(Args->getElement(a)))
ArgTypes.push_back(NodeType::Translate(DI->getDef()));
else
throw "In node " + Node->getName() + ", argument is not a Def!";
if (a == 0 && ArgTypes.back() == NodeType::Arg0)
throw "In node " + Node->getName() + ", arg 0 cannot have type 'arg0'!";
if (ArgTypes.back() == NodeType::Void)
throw "In node " + Node->getName() + ", args cannot be void type!";
}
if (RetTy == NodeType::Arg0 && Args->getSize() == 0)
throw "In node " + Node->getName() +
", invalid return type for nullary node!";
// Add the node type mapping now...
NodeTypes[Node] = NodeType(RetTy, ArgTypes);
}
}
/// ProcessInstructionPatterns - Read in all subclasses of Instruction, and
/// process those with a useful Pattern field.
///
void InstrSelectorEmitter::ProcessInstructionPatterns() {
std::vector<Record*> Insts = Records.getAllDerivedDefinitions("Instruction");
for (unsigned i = 0, e = Insts.size(); i != e; ++i) {
Record *Inst = Insts[i];
if (DagInit *PatternInit =
dynamic_cast<DagInit*>(Inst->getValueInit("Pattern"))) {
}
}
}
void InstrSelectorEmitter::run(std::ostream &OS) {
// Type-check all of the node types to ensure we "understand" them.
ProcessNodeTypes();
// Read all of the instruction patterns in...
ProcessInstructionPatterns();
// Read all of the Expander patterns in...
}