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Parse Def ID as Value

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Allow def and defm IDs to be general values.  We need this for paste
functionality.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@142522 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
David Greene 2011-10-19 13:04:29 +00:00
parent 8592b2b2a3
commit a9e07dd66d
2 changed files with 42 additions and 14 deletions
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54
lib/TableGen/TGParser.cpp
View File

@ -306,19 +306,41 @@ static std::string GetNewAnonymousName() {
/// ParseObjectName - If an object name is specified, return it. Otherwise,
/// return an anonymous name.
/// ObjectName ::= ID
/// ObjectName ::= Value [ '#' Value ]*
/// ObjectName ::= /*empty*/
///
std::string TGParser::ParseObjectName() {
if (Lex.getCode() != tgtok::Id)
return GetNewAnonymousName();
Init *TGParser::ParseObjectName(MultiClass *CurMultiClass) {
switch (Lex.getCode()) {
case tgtok::colon:
case tgtok::semi:
case tgtok::l_brace:
// These are all of the tokens that can begin an object body.
// Some of these can also begin values but we disallow those cases
// because they are unlikely to be useful.
return StringInit::get(GetNewAnonymousName());
break;
default:
break;
}
std::string Ret = Lex.getCurStrVal();
Lex.Lex();
return Ret;
Record *CurRec = 0;
if (CurMultiClass)
CurRec = &CurMultiClass->Rec;
RecTy *Type = 0;
if (CurRec) {
const TypedInit *CurRecName =
dynamic_cast<const TypedInit *>(CurRec->getNameInit());
if (!CurRecName) {
TokError("Record name is not typed!");
return 0;
}
Type = CurRecName->getType();
}
return ParseValue(CurRec, Type, ParseNameMode);
}
/// ParseClassID - Parse and resolve a reference to a class name. This returns
/// null on error.
///
@ -1692,7 +1714,7 @@ bool TGParser::ParseDef(MultiClass *CurMultiClass) {
Lex.Lex(); // Eat the 'def' token.
// Parse ObjectName and make a record for it.
Record *CurRec = new Record(ParseObjectName(), DefLoc, Records);
Record *CurRec = new Record(ParseObjectName(CurMultiClass), DefLoc, Records);
if (!CurMultiClass) {
// Top-level def definition.
@ -2063,10 +2085,15 @@ bool TGParser::ResolveMulticlassDef(MultiClass &MC,
bool TGParser::ParseDefm(MultiClass *CurMultiClass) {
assert(Lex.getCode() == tgtok::Defm && "Unexpected token!");
std::string DefmPrefix;
Init *DefmPrefix = 0;
std::string DefmPrefixString;
if (Lex.Lex() == tgtok::Id) { // eat the defm.
DefmPrefix = Lex.getCurStrVal();
Lex.Lex(); // Eat the defm prefix.
DefmPrefix = ParseObjectName(CurMultiClass);
StringInit *DefmPrefixStringInit = dynamic_cast<StringInit *>(DefmPrefix);
if (DefmPrefixStringInit == 0)
return TokError("defm prefix is not a string");
DefmPrefixString = DefmPrefixStringInit->getValue();
}
SMLoc DefmPrefixLoc = Lex.getLoc();
@ -2105,7 +2132,8 @@ bool TGParser::ParseDefm(MultiClass *CurMultiClass) {
for (unsigned i = 0, e = MC->DefPrototypes.size(); i != e; ++i) {
Record *DefProto = MC->DefPrototypes[i];
Record *CurRec = InstantiateMulticlassDef(*MC, DefProto, DefmPrefix, DefmPrefixLoc);
Record *CurRec = InstantiateMulticlassDef(*MC, DefProto, DefmPrefixString,
DefmPrefixLoc);
if (ResolveMulticlassDefArgs(*MC, CurRec, DefmPrefixLoc, SubClassLoc,
TArgs, TemplateVals, true/*Delete args*/))

2
lib/TableGen/TGParser.h
View File

@ -145,7 +145,7 @@ private: // Parser methods.
RecTy *ParseType();
Init *ParseOperation(Record *CurRec);
RecTy *ParseOperatorType();
std::string ParseObjectName();
Init *ParseObjectName(MultiClass *CurMultiClass);
Record *ParseClassID();
MultiClass *ParseMultiClassID();
Record *ParseDefmID();