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provide themselves. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3125 91177308-0d34-0410-b5e6-96231b3b80d8
33 lines
1.0 KiB
C++
33 lines
1.0 KiB
C++
//===-- UnifyFunctionExitNodes.h - Ensure fn's have one return ---*- C++ -*--=//
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//
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// This pass is used to ensure that functions have at most one return
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// instruction in them. Additionally, it keeps track of which node is the new
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// exit node of the CFG. If there are no exit nodes in the CFG, the getExitNode
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// method will return a null pointer.
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_XFORMS_UNIFY_FUNCTION_EXIT_NODES_H
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#define LLVM_XFORMS_UNIFY_FUNCTION_EXIT_NODES_H
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#include "llvm/Pass.h"
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struct UnifyFunctionExitNodes : public FunctionPass {
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BasicBlock *ExitNode;
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public:
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static AnalysisID ID; // Pass ID
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UnifyFunctionExitNodes(AnalysisID id = ID) : ExitNode(0) { assert(ID == id); }
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// getExitNode - Return the new single (or nonexistant) exit node of the CFG.
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//
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BasicBlock *getExitNode() const { return ExitNode; }
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virtual bool runOnFunction(Function &F);
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};
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static inline Pass *createUnifyFunctionExitNodesPass() {
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return new UnifyFunctionExitNodes();
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}
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#endif
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