mirror of
https://github.com/c64scene-ar/llvm-6502.git
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0b8c9a80f2
into their new header subdirectory: include/llvm/IR. This matches the directory structure of lib, and begins to correct a long standing point of file layout clutter in LLVM. There are still more header files to move here, but I wanted to handle them in separate commits to make tracking what files make sense at each layer easier. The only really questionable files here are the target intrinsic tablegen files. But that's a battle I'd rather not fight today. I've updated both CMake and Makefile build systems (I think, and my tests think, but I may have missed something). I've also re-sorted the includes throughout the project. I'll be committing updates to Clang, DragonEgg, and Polly momentarily. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171366 91177308-0d34-0410-b5e6-96231b3b80d8
115 lines
3.5 KiB
C++
115 lines
3.5 KiB
C++
//===-- CFGPrinter.h - CFG printer external interface -----------*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// This file defines external functions that can be called to explicitly
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// instantiate the CFG printer.
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_ANALYSIS_CFGPRINTER_H
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#define LLVM_ANALYSIS_CFGPRINTER_H
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#include "llvm/Assembly/Writer.h"
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#include "llvm/IR/Constants.h"
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#include "llvm/IR/Function.h"
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#include "llvm/IR/Instructions.h"
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#include "llvm/Support/CFG.h"
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#include "llvm/Support/GraphWriter.h"
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namespace llvm {
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template<>
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struct DOTGraphTraits<const Function*> : public DefaultDOTGraphTraits {
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DOTGraphTraits (bool isSimple=false) : DefaultDOTGraphTraits(isSimple) {}
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static std::string getGraphName(const Function *F) {
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return "CFG for '" + F->getName().str() + "' function";
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}
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static std::string getSimpleNodeLabel(const BasicBlock *Node,
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const Function *) {
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if (!Node->getName().empty())
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return Node->getName().str();
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std::string Str;
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raw_string_ostream OS(Str);
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WriteAsOperand(OS, Node, false);
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return OS.str();
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}
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static std::string getCompleteNodeLabel(const BasicBlock *Node,
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const Function *) {
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std::string Str;
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raw_string_ostream OS(Str);
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if (Node->getName().empty()) {
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WriteAsOperand(OS, Node, false);
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OS << ":";
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}
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OS << *Node;
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std::string OutStr = OS.str();
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if (OutStr[0] == '\n') OutStr.erase(OutStr.begin());
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// Process string output to make it nicer...
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for (unsigned i = 0; i != OutStr.length(); ++i)
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if (OutStr[i] == '\n') { // Left justify
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OutStr[i] = '\\';
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OutStr.insert(OutStr.begin()+i+1, 'l');
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} else if (OutStr[i] == ';') { // Delete comments!
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unsigned Idx = OutStr.find('\n', i+1); // Find end of line
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OutStr.erase(OutStr.begin()+i, OutStr.begin()+Idx);
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--i;
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}
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return OutStr;
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}
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std::string getNodeLabel(const BasicBlock *Node,
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const Function *Graph) {
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if (isSimple())
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return getSimpleNodeLabel(Node, Graph);
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else
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return getCompleteNodeLabel(Node, Graph);
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}
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static std::string getEdgeSourceLabel(const BasicBlock *Node,
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succ_const_iterator I) {
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// Label source of conditional branches with "T" or "F"
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if (const BranchInst *BI = dyn_cast<BranchInst>(Node->getTerminator()))
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if (BI->isConditional())
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return (I == succ_begin(Node)) ? "T" : "F";
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// Label source of switch edges with the associated value.
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if (const SwitchInst *SI = dyn_cast<SwitchInst>(Node->getTerminator())) {
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unsigned SuccNo = I.getSuccessorIndex();
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if (SuccNo == 0) return "def";
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std::string Str;
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raw_string_ostream OS(Str);
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SwitchInst::ConstCaseIt Case =
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SwitchInst::ConstCaseIt::fromSuccessorIndex(SI, SuccNo);
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OS << Case.getCaseValue()->getValue();
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return OS.str();
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}
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return "";
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}
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};
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} // End llvm namespace
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namespace llvm {
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class FunctionPass;
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FunctionPass *createCFGPrinterPass ();
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FunctionPass *createCFGOnlyPrinterPass ();
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} // End llvm namespace
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#endif
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