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Add passes -view-cfg and -view-cfg-only that are like -print-cfg and 

-print-cfg-only except they use the ViewCFG function, which displays the
CFG rendered with graphviz with gv.

llvm-svn: 37033
This commit is contained in:
Dan Gohman 2007-05-14 14:25:08 +00:00
parent 86110bdf06
commit 90d97ac1e6
1 changed files with 42 additions and 0 deletions
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42
llvm/lib/Analysis/CFGPrinter.cpp
View File

@ -90,6 +90,48 @@ struct DOTGraphTraits<const Function*> : public DefaultDOTGraphTraits {
}
namespace {
struct VISIBILITY_HIDDEN CFGViewer : public FunctionPass {
static char ID; // Pass identifcation, replacement for typeid
CFGViewer() : FunctionPass((intptr_t)&ID) {}
virtual bool runOnFunction(Function &F) {
F.viewCFG();
return false;
}
void print(std::ostream &OS, const Module* = 0) const {}
virtual void getAnalysisUsage(AnalysisUsage &AU) const {
AU.setPreservesAll();
}
};
char CFGViewer::ID = 0;
RegisterPass<CFGViewer> V0("view-cfg",
"View CFG of function");
struct VISIBILITY_HIDDEN CFGOnlyViewer : public FunctionPass {
static char ID; // Pass identifcation, replacement for typeid
CFGOnlyViewer() : FunctionPass((intptr_t)&ID) {}
virtual bool runOnFunction(Function &F) {
CFGOnly = true;
F.viewCFG();
CFGOnly = false;
return false;
}
void print(std::ostream &OS, const Module* = 0) const {}
virtual void getAnalysisUsage(AnalysisUsage &AU) const {
AU.setPreservesAll();
}
};
char CFGOnlyViewer::ID = 0;
RegisterPass<CFGOnlyViewer> V1("view-cfg-only",
"View CFG of function (with no function bodies)");
struct VISIBILITY_HIDDEN CFGPrinter : public FunctionPass {
static char ID; // Pass identification, replacement for typeid
CFGPrinter() : FunctionPass((intptr_t)&ID) {}