diff options
Diffstat (limited to 'lib/CodeGen')
| -rw-r--r-- | lib/CodeGen/MachineFunction.cpp | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/lib/CodeGen/MachineFunction.cpp b/lib/CodeGen/MachineFunction.cpp index 2e3088c7e3..f0ece6b3db 100644 --- a/lib/CodeGen/MachineFunction.cpp +++ b/lib/CodeGen/MachineFunction.cpp @@ -25,6 +25,7 @@ #include "llvm/Instructions.h" #include "llvm/Support/LeakDetector.h" #include "llvm/Support/GraphWriter.h" +#include "llvm/Config/config.h" #include <fstream> #include <iostream> #include <sstream> @@ -206,6 +207,7 @@ namespace llvm { void MachineFunction::viewCFG() const { +#ifndef NDEBUG std::string Filename = "/tmp/cfg." + getFunction()->getName() + ".dot"; std::cerr << "Writing '" << Filename << "'... "; std::ofstream F(Filename.c_str()); @@ -219,6 +221,17 @@ void MachineFunction::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 // HAVE_GRAPHVIZ + +#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())) { @@ -228,6 +241,15 @@ void MachineFunction::viewCFG() const system("gv /tmp/cfg.tempgraph.ps"); } system(("rm " + Filename + " /tmp/cfg.tempgraph.ps").c_str()); + return; +#endif // HAVE_GV +#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()); +#endif } void MachineFunction::viewCFGOnly() const |