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[mips] Extend ParseJumpTarget to support the full symbol expression syntax.

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Summary:
This should fix the issues the D3222 caused in lld. Testcase is based on
the one that failed in the buildbot.

Depends on D3233

Reviewers: matheusalmeida, vmedic

Reviewed By: matheusalmeida

Differential Revision: http://llvm-reviews.chandlerc.com/D3234

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@205298 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Daniel Sanders
2014-04-01 10:41:48 +00:00
parent 1302349706
commit f2452c4cec
2 changed files with 20 additions and 27 deletions
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33
lib/Target/Mips/AsmParser/MipsAsmParser.cpp
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@@ -1868,35 +1868,14 @@ MipsAsmParser::OperandMatchResultTy MipsAsmParser::ParseJumpTarget(
if (ResTy != MatchOperand_NoMatch)
return ResTy;
// Consume the $ if there is one. We'll add it to the symbol below.
bool hasConsumedDollar = false;
if (getLexer().is(AsmToken::Dollar)) {
Parser.Lex();
hasConsumedDollar = true;
const MCExpr *Expr = nullptr;
if (Parser.parseExpression(Expr)) {
// We have no way of knowing if a symbol was consumed so we must ParseFail
return MatchOperand_ParseFail;
}
StringRef Identifier;
if (Parser.parseIdentifier(Identifier))
return hasConsumedDollar ? MatchOperand_ParseFail : MatchOperand_NoMatch;
if (hasConsumedDollar)
Identifier = StringRef("$" + Identifier.str());
SMLoc E = SMLoc::getFromPointer(Parser.getTok().getLoc().getPointer() - 1);
MCSymbol *Sym = getContext().GetOrCreateSymbol(Identifier);
// Create a symbol reference.
const MCExpr *Res =
MCSymbolRefExpr::Create(Sym, MCSymbolRefExpr::VK_None, getContext());
Operands.push_back(MipsOperand::CreateImm(Res, S, E, *this));
Operands.push_back(
MipsOperand::CreateImm(Expr, S, getLexer().getLoc(), *this));
return MatchOperand_Success;
// // Look for the existing symbol, we should check if
// // we need to assign the proper RegisterKind.
// if (searchSymbolAlias(Operands))
// return false;
return MatchOperand_NoMatch;
}
MipsAsmParser::OperandMatchResultTy