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add two helper methods
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31143 91177308-0d34-0410-b5e6-96231b3b80d8
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@ -125,8 +125,16 @@ public:
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unsigned succ_size() const { return Successors.size(); }
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bool succ_empty() const { return Successors.empty(); }
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// Code Layout methods.
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/// moveBefore/moveAfter - move 'this' block before or after the specified
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/// block. This only moves the block, it does not modify the CFG or adjust
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/// potential fall-throughs at the end of the block.
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void moveBefore(MachineBasicBlock *NewAfter);
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void moveAfter(MachineBasicBlock *NewBefore);
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// Machine-CFG mutators
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/// addSuccessor - Add succ as a successor of this MachineBasicBlock.
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/// The Predecessors list of succ is automatically updated.
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///
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