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Let SetValue Take and Init Name

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Convert SetValue to take the value name as an Init.  This allows us to
set values for variables whose names are not yet fully resolved.

llvm-svn: 142499
This commit is contained in:
David Greene 2011-10-19 13:02:39 +00:00
parent 91eb76c04d
commit 090d05729c
2 changed files with 17 additions and 9 deletions
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19
lib/TableGen/TGParser.cpp
View File

@ -79,7 +79,7 @@ bool TGParser::AddValue(Record *CurRec, SMLoc Loc, const RecordVal &RV) {
/// SetValue -
/// Return true on error, false on success.
bool TGParser::SetValue(Record *CurRec, SMLoc Loc, const std::string &ValName,
bool TGParser::SetValue(Record *CurRec, SMLoc Loc, Init *ValName,
const std::vector<unsigned> &BitList, Init *V) {
if (!V) return false;
@ -87,13 +87,14 @@ bool TGParser::SetValue(Record *CurRec, SMLoc Loc, const std::string &ValName,
RecordVal *RV = CurRec->getValue(ValName);
if (RV == 0)
return Error(Loc, "Value '" + ValName + "' unknown!");
return Error(Loc, "Value '" + ValName->getAsUnquotedString()
+ "' unknown!");
// Do not allow assignments like 'X = X'. This will just cause infinite loops
// in the resolution machinery.
if (BitList.empty())
if (VarInit *VI = dynamic_cast<VarInit*>(V))
if (VI->getName() == ValName)
if (VI->getNameInit() == ValName)
return false;
// If we are assigning to a subset of the bits in the value... then we must be
@ -103,7 +104,8 @@ bool TGParser::SetValue(Record *CurRec, SMLoc Loc, const std::string &ValName,
if (!BitList.empty()) {
BitsInit *CurVal = dynamic_cast<BitsInit*>(RV->getValue());
if (CurVal == 0)
return Error(Loc, "Value '" + ValName + "' is not a bits type");
return Error(Loc, "Value '" + ValName->getAsUnquotedString()
+ "' is not a bits type");
// Convert the incoming value to a bits type of the appropriate size...
Init *BI = V->convertInitializerTo(BitsRecTy::get(BitList.size()));
@ -123,7 +125,7 @@ bool TGParser::SetValue(Record *CurRec, SMLoc Loc, const std::string &ValName,
unsigned Bit = BitList[i];
if (NewBits[Bit])
return Error(Loc, "Cannot set bit #" + utostr(Bit) + " of value '" +
ValName + "' more than once");
ValName->getAsUnquotedString() + "' more than once");
NewBits[Bit] = BInit->getBit(i);
}
@ -135,9 +137,10 @@ bool TGParser::SetValue(Record *CurRec, SMLoc Loc, const std::string &ValName,
}
if (RV->setValue(V))
return Error(Loc, "Value '" + ValName + "' of type '" +
RV->getType()->getAsString() +
"' is incompatible with initializer '" + V->getAsString() +"'");
return Error(Loc, "Value '" + ValName->getAsUnquotedString() + "' of type '"
+ RV->getType()->getAsString() +
"' is incompatible with initializer '" + V->getAsString()
+ "'");
return false;
}

7
lib/TableGen/TGParser.h
View File

@ -14,6 +14,7 @@
#ifndef TGPARSER_H
#define TGPARSER_H
#include "llvm/TableGen/Record.h"
#include "TGLexer.h"
#include "llvm/TableGen/Error.h"
#include "llvm/ADT/Twine.h"
@ -72,8 +73,12 @@ public:
}
private: // Semantic analysis methods.
bool AddValue(Record *TheRec, SMLoc Loc, const RecordVal &RV);
bool SetValue(Record *TheRec, SMLoc Loc, const std::string &ValName,
bool SetValue(Record *TheRec, SMLoc Loc, Init *ValName,
const std::vector<unsigned> &BitList, Init *V);
bool SetValue(Record *TheRec, SMLoc Loc, const std::string &ValName,
const std::vector<unsigned> &BitList, Init *V) {
return SetValue(TheRec, Loc, StringInit::get(ValName), BitList, V);
}
bool AddSubClass(Record *Rec, SubClassReference &SubClass);
bool AddSubMultiClass(MultiClass *CurMC,
SubMultiClassReference &SubMultiClass);