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Implement a new "viewGraph" method which can be used to instantly view a graph from gdb 

llvm-svn: 5528
This commit is contained in:
Chris Lattner 2003-02-10 18:17:07 +00:00
parent b96f2123ab
commit 75007f16de
1 changed files with 17 additions and 0 deletions
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17
llvm/lib/Analysis/DataStructure/Printer.cpp
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@ -179,6 +179,23 @@ void DSGraph::writeGraphToFile(std::ostream &O,
}
}
/// viewGraph - Emit a dot graph, run 'dot', run gv on the postscript file,
/// then cleanup. For use from the debugger.
///
void DSGraph::viewGraph() const {
std::ofstream F("/tmp/tempgraph.dot");
if (!F.good()) {
std::cerr << "Error opening '/tmp/tempgraph.dot' for temporary graph!\n";
return;
}
print(F);
if (system("dot -Tps /tmp/tempgraph.dot > /tmp/tempgraph.ps"))
std::cerr << "Error running dot: 'dot' not in path?\n";
system("gv /tmp/tempgraph.ps");
system("rm /tmp/tempgraph.dot /tmp/tempgraph.ps");
}
template <typename Collection>
static void printCollection(const Collection &C, std::ostream &O,
const Module *M, const std::string &Prefix) {