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Fix for PR340: Verifier misses malformed switch instruction 

llvm-svn: 13618
This commit is contained in:
Chris Lattner 2004-05-21 16:47:21 +00:00
parent 6041fee872
commit ab5aa14403
1 changed files with 12 additions and 0 deletions
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12
llvm/lib/VMCore/Verifier.cpp
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@ -173,6 +173,7 @@ namespace { // Anonymous namespace for class
void visitInstruction(Instruction &I);
void visitTerminatorInst(TerminatorInst &I);
void visitReturnInst(ReturnInst &RI);
void visitSwitchInst(SwitchInst &SI);
void visitSelectInst(SelectInst &SI);
void visitUserOp1(Instruction &I);
void visitUserOp2(Instruction &I) { visitUserOp1(I); }
@ -362,6 +363,17 @@ void Verifier::visitReturnInst(ReturnInst &RI) {
visitTerminatorInst(RI);
}
void Verifier::visitSwitchInst(SwitchInst &SI) {
// Check to make sure that all of the constants in the switch instruction
// have the same type as the switched-on value.
const Type *SwitchTy = SI.getCondition()->getType();
for (unsigned i = 1, e = SI.getNumCases(); i != e; ++i)
Assert1(SI.getCaseValue(i)->getType() == SwitchTy,
"Switch constants must all be same type as switch value!", &SI);
visitTerminatorInst(SI);
}
void Verifier::visitSelectInst(SelectInst &SI) {
Assert1(SI.getCondition()->getType() == Type::BoolTy,
"Select condition type must be bool!", &SI);