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add support for Graphviz when viewing CFGs

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22620 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2005-08-03 17:55:05 +00:00
parent 0a3f677f09
commit b06f677c53
1 changed files with 20 additions and 0 deletions
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20
lib/Analysis/CFGPrinter.cpp
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@ -24,6 +24,7 @@
#include "llvm/Assembly/Writer.h"
#include "llvm/Support/CFG.h"
#include "llvm/Support/GraphWriter.h"
#include "llvm/Config/config.h"
#include <sstream>
#include <fstream>
using namespace llvm;
@ -137,6 +138,7 @@ namespace {
/// being a 'dot' and 'gv' program in your path.
///
void Function::viewCFG() const {
#ifndef NDEBUG
std::string Filename = "/tmp/cfg." + getName() + ".dot";
std::cerr << "Writing '" << Filename << "'... ";
std::ofstream F(Filename.c_str());
@ -150,6 +152,17 @@ void Function::viewCFG() const {
F.close();
std::cerr << "\n";
#ifdef HAVE_GRAPHVIZ
std::cerr << "Running 'Graphviz' program... " << std::flush;
if (system((LLVM_PATH_GRAPHVIZ " " + Filename).c_str())) {
std::cerr << "Error viewing graph: 'Graphviz' not in path?\n";
} else {
system(("rm " + Filename).c_str());
return;
}
#endif
#ifdef HAVE_GV
std::cerr << "Running 'dot' program... " << std::flush;
if (system(("dot -Tps -Nfontname=Courier -Gsize=7.5,10 " + Filename
+ " > /tmp/cfg.tempgraph.ps").c_str())) {
@ -159,6 +172,13 @@ void Function::viewCFG() const {
system("gv /tmp/cfg.tempgraph.ps");
}
system(("rm " + Filename + " /tmp/cfg.tempgraph.ps").c_str());
return;
#endif
#endif
std::cerr << "Function::viewCFG is only available in debug builds on "
<< "systems with Graphviz or gv!\n";
system(("rm " + Filename).c_str());
}
/// viewCFGOnly - This function is meant for use from the debugger. It works