// FIXME: Move to this file: BasicBlock::removePredecessor, BB::splitBasicBlock
#include "llvm/BasicBlock.h"
+#include "llvm/Support/CFG.h"
class Instruction;
class Pass;
///
bool SplitCriticalEdge(TerminatorInst *TI, unsigned SuccNum, Pass *P = 0);
+inline bool SplitCriticalEdge(BasicBlock *BB, succ_iterator SI, Pass *P = 0) {
+ return SplitCriticalEdge(BB->getTerminator(), SI.getSuccessorIndex(), P);
+}
+
+/// SplitCriticalEdge - If the edge from *PI to BB is not critical, return
+/// false. Otherwise, split all edges between the two blocks and return true.
+/// This updates all of the same analyses as the other SplitCriticalEdge
+/// function.
+inline bool SplitCriticalEdge(BasicBlock *Succ, pred_iterator PI, Pass *P = 0) {
+ BasicBlock *Pred = *PI;
+ bool MadeChange = false;
+ for (succ_iterator SI = succ_begin(Pred), E = succ_end(Pred); SI != E; ++SI)
+ if (*SI == Succ)
+ MadeChange |= SplitCriticalEdge(Pred, SI, P);
+ return MadeChange;
+}
+
+
#endif