diff options
Diffstat (limited to 'lib/AsmParser/LLParser.cpp')
-rw-r--r-- | lib/AsmParser/LLParser.cpp | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/lib/AsmParser/LLParser.cpp b/lib/AsmParser/LLParser.cpp index 8b30eef..6a4c2a8 100644 --- a/lib/AsmParser/LLParser.cpp +++ b/lib/AsmParser/LLParser.cpp @@ -2945,6 +2945,7 @@ int LLParser::ParseInstruction(Instruction *&Inst, BasicBlock *BB, case lltok::kw_insertelement: return ParseInsertElement(Inst, PFS); case lltok::kw_shufflevector: return ParseShuffleVector(Inst, PFS); case lltok::kw_phi: return ParsePHI(Inst, PFS); + case lltok::kw_landingpad: return ParseLandingPad(Inst, PFS); case lltok::kw_call: return ParseCall(Inst, PFS, false); case lltok::kw_tail: return ParseCall(Inst, PFS, true); // Memory. @@ -3519,6 +3520,47 @@ int LLParser::ParsePHI(Instruction *&Inst, PerFunctionState &PFS) { return AteExtraComma ? InstExtraComma : InstNormal; } +/// ParseLandingPad +/// ::= 'landingpad' Type 'personality' TypeAndValue 'cleanup'? Clause+ +/// Clause +/// ::= 'catch' TypeAndValue +/// ::= 'filter' +/// ::= 'filter' TypeAndValue ( ',' TypeAndValue )* +bool LLParser::ParseLandingPad(Instruction *&Inst, PerFunctionState &PFS) { + Type *Ty = 0; LocTy TyLoc; + Value *PersFn; LocTy PersFnLoc; + LocTy LPLoc = Lex.getLoc(); + + if (ParseType(Ty, TyLoc) || + ParseToken(lltok::kw_personality, "expected 'personality'") || + ParseTypeAndValue(PersFn, PersFnLoc, PFS)) + return true; + + LandingPadInst *LP = LandingPadInst::Create(Ty, PersFn, 0); + LP->setCleanup(EatIfPresent(lltok::kw_cleanup)); + + while (Lex.getKind() == lltok::kw_catch || Lex.getKind() == lltok::kw_filter){ + LandingPadInst::ClauseType CT; + if (EatIfPresent(lltok::kw_catch)) + CT = LandingPadInst::Catch; + else if (EatIfPresent(lltok::kw_filter)) + CT = LandingPadInst::Filter; + else + return TokError("expected 'catch' or 'filter' clause type"); + + Value *V; LocTy VLoc; + if (ParseTypeAndValue(V, VLoc, PFS)) { + delete LP; + return true; + } + + LP->addClause(V); + } + + Inst = LP; + return false; +} + /// ParseCall /// ::= 'tail'? 'call' OptionalCallingConv OptionalAttrs Type Value /// ParameterList OptionalAttrs |