// as volatile if they are live across a setjmp call, and they probably
// won't do this in callers.
exposesReturnsTwice = F->callsFunctionThatReturnsTwice() &&
// as volatile if they are live across a setjmp call, and they probably
// won't do this in callers.
exposesReturnsTwice = F->callsFunctionThatReturnsTwice() &&