Details | Last modification | View Log | RSS feed
| Rev | Author | Line No. | Line |
|---|---|---|---|
| 14 | pmbaty | 1 | //===-- MachineCFGPrinter.h -------------------------------------*- C++ -*-===// |
| 2 | // |
||
| 3 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
||
| 4 | // See https://llvm.org/LICENSE.txt for license information. |
||
| 5 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
||
| 6 | // |
||
| 7 | //===----------------------------------------------------------------------===// |
||
| 8 | // |
||
| 9 | //===----------------------------------------------------------------------===// |
||
| 10 | |||
| 11 | #include "llvm/Analysis/CFGPrinter.h" |
||
| 12 | #include "llvm/CodeGen/MachineBasicBlock.h" |
||
| 13 | #include "llvm/CodeGen/MachineFunction.h" |
||
| 14 | #include "llvm/CodeGen/MachineInstr.h" |
||
| 15 | #include "llvm/Support/DOTGraphTraits.h" |
||
| 16 | |||
| 17 | namespace llvm { |
||
| 18 | |||
| 19 | template <class GraphType> struct GraphTraits; |
||
| 20 | class DOTMachineFuncInfo { |
||
| 21 | private: |
||
| 22 | const MachineFunction *F; |
||
| 23 | |||
| 24 | public: |
||
| 25 | DOTMachineFuncInfo(const MachineFunction *F) : F(F) {} |
||
| 26 | |||
| 27 | const MachineFunction *getFunction() const { return this->F; } |
||
| 28 | }; |
||
| 29 | |||
| 30 | template <> |
||
| 31 | struct GraphTraits<DOTMachineFuncInfo *> |
||
| 32 | : public GraphTraits<const MachineBasicBlock *> { |
||
| 33 | static NodeRef getEntryNode(DOTMachineFuncInfo *CFGInfo) { |
||
| 34 | return &(CFGInfo->getFunction()->front()); |
||
| 35 | } |
||
| 36 | |||
| 37 | // nodes_iterator/begin/end - Allow iteration over all nodes in the graph |
||
| 38 | using nodes_iterator = pointer_iterator<MachineFunction::const_iterator>; |
||
| 39 | |||
| 40 | static nodes_iterator nodes_begin(DOTMachineFuncInfo *CFGInfo) { |
||
| 41 | return nodes_iterator(CFGInfo->getFunction()->begin()); |
||
| 42 | } |
||
| 43 | |||
| 44 | static nodes_iterator nodes_end(DOTMachineFuncInfo *CFGInfo) { |
||
| 45 | return nodes_iterator(CFGInfo->getFunction()->end()); |
||
| 46 | } |
||
| 47 | |||
| 48 | static size_t size(DOTMachineFuncInfo *CFGInfo) { |
||
| 49 | return CFGInfo->getFunction()->size(); |
||
| 50 | } |
||
| 51 | }; |
||
| 52 | |||
| 53 | template <> |
||
| 54 | struct DOTGraphTraits<DOTMachineFuncInfo *> : public DefaultDOTGraphTraits { |
||
| 55 | |||
| 56 | DOTGraphTraits(bool isSimple = false) : DefaultDOTGraphTraits(isSimple) {} |
||
| 57 | |||
| 58 | static void eraseComment(std::string &OutStr, unsigned &I, unsigned Idx) { |
||
| 59 | OutStr.erase(OutStr.begin() + I, OutStr.begin() + Idx); |
||
| 60 | --I; |
||
| 61 | } |
||
| 62 | |||
| 63 | static std::string getSimpleNodeLabel(const MachineBasicBlock *Node, |
||
| 64 | DOTMachineFuncInfo *) { |
||
| 65 | return SimpleNodeLabelString(Node); |
||
| 66 | } |
||
| 67 | |||
| 68 | static std::string getCompleteNodeLabel( |
||
| 69 | const MachineBasicBlock *Node, DOTMachineFuncInfo *, |
||
| 70 | function_ref<void(raw_string_ostream &, const MachineBasicBlock &)> |
||
| 71 | HandleBasicBlock = |
||
| 72 | [](raw_string_ostream &OS, |
||
| 73 | const MachineBasicBlock &Node) -> void { OS << Node; }, |
||
| 74 | function_ref<void(std::string &, unsigned &, unsigned)> |
||
| 75 | HandleComment = eraseComment) { |
||
| 76 | return CompleteNodeLabelString(Node, HandleBasicBlock, HandleComment); |
||
| 77 | } |
||
| 78 | |||
| 79 | std::string getNodeLabel(const MachineBasicBlock *Node, |
||
| 80 | DOTMachineFuncInfo *CFGInfo) { |
||
| 81 | if (isSimple()) |
||
| 82 | return getSimpleNodeLabel(Node, CFGInfo); |
||
| 83 | |||
| 84 | return getCompleteNodeLabel(Node, CFGInfo); |
||
| 85 | } |
||
| 86 | |||
| 87 | static std::string getGraphName(DOTMachineFuncInfo *CFGInfo) { |
||
| 88 | return "Machine CFG for '" + CFGInfo->getFunction()->getName().str() + |
||
| 89 | "' function"; |
||
| 90 | } |
||
| 91 | }; |
||
| 92 | } // namespace llvm |