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Merge the contents from exception-handling-rewrite to the mainline.

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This adds the new instructions 'landingpad' and 'resume'.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136253 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Bill Wendling
2011-07-27 20:18:04 +00:00
parent 7e1547ebf7
commit 772fe17a6d
27 changed files with 742 additions and 106 deletions
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39
lib/Bitcode/Reader/BitcodeReader.cpp
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@ -2491,6 +2491,14 @@ bool BitcodeReader::ParseFunctionBody(Function *F) {
cast<InvokeInst>(I)->setAttributes(PAL);
break;
}
case bitc::FUNC_CODE_INST_RESUME: { // RESUME: [opval]
unsigned Idx = 0;
Value *Val = 0;
if (getValueTypePair(Record, Idx, NextValueNo, Val))
return Error("Invalid RESUME record");
I = ResumeInst::Create(Context, Val);
break;
}
case bitc::FUNC_CODE_INST_UNWIND: // UNWIND
I = new UnwindInst(Context);
InstructionList.push_back(I);
@ -2518,6 +2526,37 @@ bool BitcodeReader::ParseFunctionBody(Function *F) {
break;
}
case bitc::FUNC_CODE_INST_LANDINGPAD: {
// LANDINGPAD: [ty, val, val, num, (id0,val0 ...)?]
unsigned Idx = 0;
if (Record.size() < 4)
return Error("Invalid LANDINGPAD record");
Type *Ty = getTypeByID(Record[Idx++]);
if (!Ty) return Error("Invalid LANDINGPAD record");
Value *PersFn = 0;
if (getValueTypePair(Record, Idx, NextValueNo, PersFn))
return Error("Invalid LANDINGPAD record");
bool IsCleanup = !!Record[Idx++];
unsigned NumClauses = Record[Idx++];
LandingPadInst *LP = LandingPadInst::Create(Ty, PersFn, NumClauses);
LP->setCleanup(IsCleanup);
for (unsigned J = 0; J != NumClauses; ++J) {
LandingPadInst::ClauseType CT =
LandingPadInst::ClauseType(Record[Idx++]);
Value *Val = 0;
if (getValueTypePair(Record, Idx, NextValueNo, Val)) {
delete LP;
return Error("Invalid LANDINGPAD record");
}
LP->addClause(CT, Val);
}
I = LP;
break;
}
case bitc::FUNC_CODE_INST_ALLOCA: { // ALLOCA: [instty, opty, op, align]
if (Record.size() != 4)
return Error("Invalid ALLOCA record");