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core changes for varargs

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22254 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Andrew Lenharth
2005-06-18 18:34:52 +00:00
parent f542821385
commit 558bc88a00
26 changed files with 501 additions and 280 deletions
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39
lib/Bytecode/Reader/Reader.cpp
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@ -658,10 +658,43 @@ void BytecodeReader::ParseInstruction(std::vector<unsigned> &Oprnds,
Result = new VAArgInst(getValue(iType, Oprnds[0]),
getSanitizedType(Oprnds[1]));
break;
case Instruction::VANext:
Result = new VANextInst(getValue(iType, Oprnds[0]),
getSanitizedType(Oprnds[1]));
case 32: { //VANext_old
const Type* ArgTy = getValue(iType, Oprnds[0])->getType();
Function* NF = TheModule->getOrInsertFunction("llvm.va_copy", ArgTy, ArgTy, 0);
//b = vanext a, t ->
//foo = alloca 1 of t
//bar = vacopy a
//store bar -> foo
//tmp = vaarg foo, t
//b = load foo
AllocaInst* foo = new AllocaInst(ArgTy, 0, "vanext.fix");
BB->getInstList().push_back(foo);
CallInst* bar = new CallInst(NF, getValue(iType, Oprnds[0]));
BB->getInstList().push_back(bar);
BB->getInstList().push_back(new StoreInst(bar, foo));
Instruction* tmp = new VAArgInst(foo, getSanitizedType(Oprnds[1]));
BB->getInstList().push_back(tmp);
Result = new LoadInst(foo);
break;
}
case 33: { //VAArg_old
const Type* ArgTy = getValue(iType, Oprnds[0])->getType();
Function* NF = TheModule->getOrInsertFunction("llvm.va_copy", ArgTy, ArgTy, 0);
//b = vaarg a, t ->
//foo = alloca 1 of t
//bar = vacopy a
//store bar -> foo
//b = vaarg foo, t
AllocaInst* foo = new AllocaInst(ArgTy, 0, "vaarg.fix");
BB->getInstList().push_back(foo);
CallInst* bar = new CallInst(NF, getValue(iType, Oprnds[0]));
BB->getInstList().push_back(bar);
BB->getInstList().push_back(new StoreInst(bar, foo));
Result = new VAArgInst(foo, getSanitizedType(Oprnds[1]));
break;
}
case Instruction::Cast:
Result = new CastInst(getValue(iType, Oprnds[0]),
getSanitizedType(Oprnds[1]));