BasicBlock *getSuccessor(unsigned i) const {
assert(i < getNumSuccessors() && "Successor # out of range for Branch!");
- return cast<BasicBlock>(getOperand(i));
+ if (Value *V = getOperand(i))
+ return cast<BasicBlock>(V);
+ return 0;
}
void setSuccessor(unsigned idx, BasicBlock *NewSucc) {
const Value *Operand = I.getNumOperands() ? I.getOperand(0) : 0;
// Special case conditional branches to swizzle the condition out to the front
- if (isa<BranchInst>(I) && I.getNumOperands() > 1) {
+ if (isa<BranchInst>(I) && cast<BranchInst>(I).isConditional()) {
+ BranchInst &BI(cast<BranchInst>(I));
Out << ' ';
- writeOperand(I.getOperand(2), true);
+ writeOperand(BI.getCondition(), true);
Out << ", ";
- writeOperand(Operand, true);
+ writeOperand(BI.getSuccessor(0), true);
Out << ", ";
- writeOperand(I.getOperand(1), true);
+ writeOperand(BI.getSuccessor(1), true);
} else if (isa<SwitchInst>(I)) {
// Special case switch statement to get formatting nice and correct...