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For PR798:

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Add support for Graphviz. Patch contributed by Anton Korobeynikov.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28684 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Reid Spencer
2006-06-05 15:44:46 +00:00
parent c21051ff96
commit 3e0c154240
4 changed files with 220 additions and 40 deletions
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77
lib/CodeGen/MachineFunction.cpp
View File

@ -27,6 +27,8 @@
#include "llvm/Instructions.h"
#include "llvm/Support/LeakDetector.h"
#include "llvm/Support/GraphWriter.h"
#include "llvm/System/Path.h"
#include "llvm/System/Program.h"
#include "llvm/Config/config.h"
#include <fstream>
#include <iostream>
@ -218,7 +220,13 @@ namespace llvm {
void MachineFunction::viewCFG() const
{
#ifndef NDEBUG
std::string Filename = "/tmp/cfg." + getFunction()->getName() + ".dot";
char pathsuff[9];
sprintf(pathsuff, "%06u", unsigned(rand()));
sys::Path TempDir = sys::Path::GetTemporaryDirectory();
sys::Path Filename = TempDir;
Filename.appendComponent("mf" + getFunction()->getName() + "." + pathsuff + ".dot");
std::cerr << "Writing '" << Filename << "'... ";
std::ofstream F(Filename.c_str());
@ -231,34 +239,77 @@ void MachineFunction::viewCFG() const
F.close();
std::cerr << "\n";
#ifdef HAVE_GRAPHVIZ
#if HAVE_GRAPHVIZ
sys::Path Graphviz(LLVM_PATH_GRAPHVIZ);
std::vector<const char*> args;
args.push_back(Graphviz.c_str());
args.push_back(Filename.c_str());
args.push_back(0);
std::cerr << "Running 'Graphviz' program... " << std::flush;
if (system((LLVM_PATH_GRAPHVIZ " " + Filename).c_str())) {
if (sys::Program::ExecuteAndWait(Graphviz, &args[0])) {
std::cerr << "Error viewing graph: 'Graphviz' not in path?\n";
} else {
system(("rm " + Filename).c_str());
Filename.eraseFromDisk();
return;
}
#endif // HAVE_GRAPHVIZ
#elif (HAVE_GV && HAVE_DOT)
sys::Path PSFilename = TempDir;
PSFilename.appendComponent(std::string("mf.tempgraph") + "." + pathsuff + ".ps");
#ifdef HAVE_GV
sys::Path dot(LLVM_PATH_DOT);
std::vector<const char*> args;
args.push_back(dot.c_str());
args.push_back("-Tps");
args.push_back("-Nfontname=Courier");
args.push_back("-Gsize=7.5,10");
args.push_back(Filename.c_str());
args.push_back("-o");
args.push_back(PSFilename.c_str());
args.push_back(0);
std::cerr << "Running 'dot' program... " << std::flush;
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";
if (sys::Program::ExecuteAndWait(dot, &args[0])) {
std::cerr << "Error viewing graph: 'dot' not in path?\n";
} else {
std::cerr << "\n";
system("gv /tmp/cfg.tempgraph.ps");
sys::Path gv(LLVM_PATH_GV);
args.clear();
args.push_back(gv.c_str());
args.push_back(PSFilename.c_str());
args.push_back(0);
sys::Program::ExecuteAndWait(gv, &args[0]);
}
system(("rm " + Filename + " /tmp/cfg.tempgraph.ps").c_str());
Filename.eraseFromDisk();
PSFilename.eraseFromDisk();
return;
#endif // HAVE_GV
#elif HAVE_DOTTY
sys::Path dotty(LLVM_PATH_DOTTY);
std::vector<const char*> args;
args.push_back(dotty.c_str());
args.push_back(Filename.c_str());
args.push_back(0);
std::cerr << "Running 'dotty' program... " << std::flush;
if (sys::Program::ExecuteAndWait(dotty, &args[0])) {
std::cerr << "Error viewing graph: 'dotty' not in path?\n";
} else {
#ifndef __MINGW32__ // Dotty spawns another app and doesn't wait until it returns
Filename.eraseFromDisk();
#endif
return;
}
#endif
#endif // NDEBUG
std::cerr << "MachineFunction::viewCFG is only available in debug builds on "
<< "systems with Graphviz or gv!\n";
#ifndef NDEBUG
system(("rm " + Filename).c_str());
Filename.eraseFromDisk();
TempDir.eraseFromDisk(true);
#endif
}