//
//===----------------------------------------------------------------------===//
-#include "Support/GraphWriter.h"
-#include "llvm/Pass.h"
#include "llvm/Function.h"
-#include "llvm/iTerminators.h"
+#include "llvm/Instructions.h"
+#include "llvm/Pass.h"
+#include "llvm/Analysis/CFGPrinter.h"
#include "llvm/Assembly/Writer.h"
#include "llvm/Support/CFG.h"
+#include "llvm/Support/GraphWriter.h"
#include <sstream>
#include <fstream>
+using namespace llvm;
/// CFGOnly flag - This is used to control whether or not the CFG graph printer
/// prints out the contents of basic blocks or not. This is acceptable because
///
static bool CFGOnly = false;
+namespace llvm {
template<>
struct DOTGraphTraits<const Function*> : public DefaultDOTGraphTraits {
static std::string getGraphName(const Function *F) {
return OutStr;
}
- static std::string getNodeAttributes(const BasicBlock *N) {
- return "fontname=Courier";
- }
-
static std::string getEdgeSourceLabel(const BasicBlock *Node,
succ_const_iterator I) {
// Label source of conditional branches with "T" or "F"
return "";
}
};
+}
namespace {
struct CFGPrinter : public FunctionPass {
return false;
}
- void print(std::ostream &OS) const {}
+ void print(std::ostream &OS, const Module* = 0) const {}
virtual void getAnalysisUsage(AnalysisUsage &AU) const {
AU.setPreservesAll();
RegisterAnalysis<CFGPrinter> P1("print-cfg",
"Print CFG of function to 'dot' file");
-};
-
+ struct CFGOnlyPrinter : public CFGPrinter {
+ virtual bool runOnFunction(Function &F) {
+ bool OldCFGOnly = CFGOnly;
+ CFGOnly = true;
+ CFGPrinter::runOnFunction(F);
+ CFGOnly = OldCFGOnly;
+ return false;
+ }
+ void print(std::ostream &OS, const Module* = 0) const {}
+
+ virtual void getAnalysisUsage(AnalysisUsage &AU) const {
+ AU.setPreservesAll();
+ }
+ };
+ RegisterAnalysis<CFGOnlyPrinter>
+ P2("print-cfg-only",
+ "Print CFG of function to 'dot' file (with no function bodies)");
+}
/// viewCFG - This function is meant for use from the debugger. You can just
/// say 'call F->viewCFG()' and a ghostview window should pop up from the
std::cerr << "\n";
std::cerr << "Running 'dot' program... " << std::flush;
- if (system(("dot -Tps " + Filename + " > /tmp/cfg.tempgraph.ps").c_str())) {
+ if (system(("dot -Tps -Nfontname=Courier -Gsize=7.5,10 " + Filename
+ + " > /tmp/cfg.tempgraph.ps").c_str())) {
std::cerr << "Error running dot: 'dot' not in path?\n";
} else {
std::cerr << "\n";
viewCFG();
CFGOnly = false;
}
+
+FunctionPass *llvm::createCFGPrinterPass () {
+ return new CFGPrinter();
+}
+
+FunctionPass *llvm::createCFGOnlyPrinterPass () {
+ return new CFGOnlyPrinter();
+}
+