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a490793037
Sooooo many of these had incorrect or strange main module includes. I have manually inspected all of these, and fixed the main module include to be the nearest plausible thing I could find. If you own or care about any of these source files, I encourage you to take some time and check that these edits were sensible. I can't have broken anything (I strictly added headers, and reordered them, never removed), but they may not be the headers you'd really like to identify as containing the API being implemented. Many forward declarations and missing includes were added to a header files to allow them to parse cleanly when included first. The main module rule does in fact have its merits. =] llvm-svn: 169131
165 lines
4.9 KiB
C++
165 lines
4.9 KiB
C++
//===- CFGPrinter.cpp - DOT printer for the control flow graph ------------===//
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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 a '-dot-cfg' analysis pass, which emits the
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// cfg.<fnname>.dot file for each function in the program, with a graph of the
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// CFG for that function.
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//
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// The other main feature of this file is that it implements the
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// Function::viewCFG method, which is useful for debugging passes which operate
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// on the CFG.
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//
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//===----------------------------------------------------------------------===//
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#include "llvm/Analysis/CFGPrinter.h"
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#include "llvm/Pass.h"
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using namespace llvm;
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namespace {
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struct CFGViewer : public FunctionPass {
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static char ID; // Pass identifcation, replacement for typeid
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CFGViewer() : FunctionPass(ID) {
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initializeCFGOnlyViewerPass(*PassRegistry::getPassRegistry());
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}
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virtual bool runOnFunction(Function &F) {
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F.viewCFG();
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return false;
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}
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void print(raw_ostream &OS, const Module* = 0) const {}
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virtual void getAnalysisUsage(AnalysisUsage &AU) const {
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AU.setPreservesAll();
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}
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};
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}
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char CFGViewer::ID = 0;
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INITIALIZE_PASS(CFGViewer, "view-cfg", "View CFG of function", false, true)
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namespace {
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struct CFGOnlyViewer : public FunctionPass {
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static char ID; // Pass identifcation, replacement for typeid
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CFGOnlyViewer() : FunctionPass(ID) {
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initializeCFGOnlyViewerPass(*PassRegistry::getPassRegistry());
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}
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virtual bool runOnFunction(Function &F) {
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F.viewCFGOnly();
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return false;
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}
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void print(raw_ostream &OS, const Module* = 0) const {}
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virtual void getAnalysisUsage(AnalysisUsage &AU) const {
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AU.setPreservesAll();
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}
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};
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}
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char CFGOnlyViewer::ID = 0;
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INITIALIZE_PASS(CFGOnlyViewer, "view-cfg-only",
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"View CFG of function (with no function bodies)", false, true)
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namespace {
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struct CFGPrinter : public FunctionPass {
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static char ID; // Pass identification, replacement for typeid
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CFGPrinter() : FunctionPass(ID) {
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initializeCFGPrinterPass(*PassRegistry::getPassRegistry());
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}
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virtual bool runOnFunction(Function &F) {
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std::string Filename = "cfg." + F.getName().str() + ".dot";
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errs() << "Writing '" << Filename << "'...";
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std::string ErrorInfo;
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raw_fd_ostream File(Filename.c_str(), ErrorInfo);
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if (ErrorInfo.empty())
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WriteGraph(File, (const Function*)&F);
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else
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errs() << " error opening file for writing!";
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errs() << "\n";
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return false;
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}
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void print(raw_ostream &OS, const Module* = 0) const {}
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virtual void getAnalysisUsage(AnalysisUsage &AU) const {
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AU.setPreservesAll();
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}
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};
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}
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char CFGPrinter::ID = 0;
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INITIALIZE_PASS(CFGPrinter, "dot-cfg", "Print CFG of function to 'dot' file",
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false, true)
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namespace {
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struct CFGOnlyPrinter : public FunctionPass {
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static char ID; // Pass identification, replacement for typeid
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CFGOnlyPrinter() : FunctionPass(ID) {
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initializeCFGOnlyPrinterPass(*PassRegistry::getPassRegistry());
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}
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virtual bool runOnFunction(Function &F) {
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std::string Filename = "cfg." + F.getName().str() + ".dot";
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errs() << "Writing '" << Filename << "'...";
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std::string ErrorInfo;
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raw_fd_ostream File(Filename.c_str(), ErrorInfo);
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if (ErrorInfo.empty())
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WriteGraph(File, (const Function*)&F, true);
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else
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errs() << " error opening file for writing!";
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errs() << "\n";
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return false;
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}
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void print(raw_ostream &OS, const Module* = 0) const {}
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virtual void getAnalysisUsage(AnalysisUsage &AU) const {
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AU.setPreservesAll();
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}
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};
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}
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char CFGOnlyPrinter::ID = 0;
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INITIALIZE_PASS(CFGOnlyPrinter, "dot-cfg-only",
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"Print CFG of function to 'dot' file (with no function bodies)",
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false, true)
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/// viewCFG - This function is meant for use from the debugger. You can just
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/// say 'call F->viewCFG()' and a ghostview window should pop up from the
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/// program, displaying the CFG of the current function. This depends on there
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/// being a 'dot' and 'gv' program in your path.
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///
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void Function::viewCFG() const {
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ViewGraph(this, "cfg" + getName());
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}
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/// viewCFGOnly - This function is meant for use from the debugger. It works
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/// just like viewCFG, but it does not include the contents of basic blocks
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/// into the nodes, just the label. If you are only interested in the CFG t
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/// his can make the graph smaller.
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///
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void Function::viewCFGOnly() const {
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ViewGraph(this, "cfg" + getName(), true);
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}
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FunctionPass *llvm::createCFGPrinterPass () {
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return new CFGPrinter();
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}
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FunctionPass *llvm::createCFGOnlyPrinterPass () {
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return new CFGOnlyPrinter();
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}
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