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Fix some problems where the verifier would crash on invalid input instead of

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reporting the problem and exiting.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20302 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2005-02-24 16:58:29 +00:00
parent 860598a295
commit aab1820816
2 changed files with 7 additions and 3 deletions
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9
lib/VMCore/AsmWriter.cpp
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@ -755,9 +755,12 @@ std::ostream &AssemblyWriter::printTypeAtLeastOneLevel(const Type *Ty) {
void AssemblyWriter::writeOperand(const Value *Operand, bool PrintType,
bool PrintName) {
assert(Operand != 0 && "Illegal Operand");
if (PrintType) { Out << ' '; printType(Operand->getType()); }
WriteAsOperandInternal(Out, Operand, PrintName, TypeNames, &Machine);
if (Operand != 0) {
if (PrintType) { Out << ' '; printType(Operand->getType()); }
WriteAsOperandInternal(Out, Operand, PrintName, TypeNames, &Machine);
} else {
Out << "<null operand!>";
}
}

1
lib/VMCore/Verifier.cpp
View File

@ -592,6 +592,7 @@ void Verifier::visitInstruction(Instruction &I) {
for (unsigned i = 0, e = I.getNumOperands(); i != e; ++i) {
// Check to make sure that the "address of" an intrinsic function is never
// taken.
Assert1(I.getOperand(i) != 0, "Instruction has null operand!", &I);
if (Function *F = dyn_cast<Function>(I.getOperand(i))) {
Assert1(!F->isIntrinsic() || (i == 0 && isa<CallInst>(I)),
"Cannot take the address of an intrinsic!", &I);