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Add the 'resume' instruction for the new EH rewrite.

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This adds the 'resume' instruction class, IR parsing, and bitcode reading and
writing. The 'resume' instruction resumes propagation of an existing (in-flight)
exception whose unwinding was interrupted with a 'landingpad' instruction (to be
added later).

llvm-svn: 136589
This commit is contained in:
Bill Wendling
2011-07-31 06:30:59 +00:00
parent 6651b33671
commit f891bf8b30
24 changed files with 257 additions and 73 deletions
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8
llvm/lib/Bitcode/Reader/BitcodeReader.cpp
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@@ -2508,6 +2508,14 @@ 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(Val);
break;
}
case bitc::FUNC_CODE_INST_UNWIND: // UNWIND
I = new UnwindInst(Context);
InstructionList.push_back(I);