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This is a proper fix for the compiler warning. A termination condition is
not needed, as it can never be reached: an edge must exist. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28282 91177308-0d34-0410-b5e6-96231b3b80d8
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@ -74,7 +74,8 @@ inline bool SplitCriticalEdge(BasicBlock *BB, succ_iterator SI, Pass *P = 0) {
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/// SplitCriticalEdge - If the edge from *PI to BB is not critical, return
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/// SplitCriticalEdge - If the edge from *PI to BB is not critical, return
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/// false. Otherwise, split all edges between the two blocks and return true.
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/// false. Otherwise, split all edges between the two blocks and return true.
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/// This updates all of the same analyses as the other SplitCriticalEdge
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/// This updates all of the same analyses as the other SplitCriticalEdge
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/// function.
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/// function. If P is specified, it updates the analyses
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/// described above.
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inline bool SplitCriticalEdge(BasicBlock *Succ, pred_iterator PI, Pass *P = 0) {
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inline bool SplitCriticalEdge(BasicBlock *Succ, pred_iterator PI, Pass *P = 0) {
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bool MadeChange = false;
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bool MadeChange = false;
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TerminatorInst *TI = (*PI)->getTerminator();
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TerminatorInst *TI = (*PI)->getTerminator();
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@ -84,12 +85,19 @@ inline bool SplitCriticalEdge(BasicBlock *Succ, pred_iterator PI, Pass *P = 0) {
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return MadeChange;
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return MadeChange;
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}
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}
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/// SplitCriticalEdge - If an edge from Src to Dst is critical, split the edge
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/// and return true, otherwise return false. This method requires that there be
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/// an edge between the two blocks. If P is specified, it updates the analyses
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/// described above.
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inline bool SplitCriticalEdge(BasicBlock *Src, BasicBlock *Dst, Pass *P = 0) {
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inline bool SplitCriticalEdge(BasicBlock *Src, BasicBlock *Dst, Pass *P = 0) {
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TerminatorInst *TI = Src->getTerminator();
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TerminatorInst *TI = Src->getTerminator();
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for (unsigned i = 0, e = TI->getNumSuccessors(); i != e; ++i)
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unsigned i = 0;
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while (1) {
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assert(i != TI->getNumSuccessors() && "Edge doesn't exist!");
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if (TI->getSuccessor(i) == Dst)
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if (TI->getSuccessor(i) == Dst)
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return SplitCriticalEdge(TI, i, P);
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return SplitCriticalEdge(TI, i, P);
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return false;
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++i;
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}
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}
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}
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} // End llvm namespace
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} // End llvm namespace
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