search for: uadd_open

...case AddInstruction::UndefinedSigned: // ... case AddInstruction::UndefinedUnsigned: // ... } } } with this: switch (I->getOpcode()) { case Instruction::Add: // ... case Instruction::SAdd_Open: // ... case Instruction::UAdd_Open: // ... break; } I'm not sure about the name "Open"; fixed-size integers are "closed" under wrapping and saturating add, so "open" sort of suggests an alternative, and is concise. But regardless, a one-level switch seems more convenient than...

Edwin was asking about how we should handle PR3328, how we should make GEP respect -fwrapv etc. I wrote up some thoughts here if anyone is interested: http://nondot.org/sabre/LLVMNotes/IntegerOverflow.txt -Chris