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Finegrainify namespacification

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Add new -print-cfg-only pass


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10407 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2003-12-11 21:48:18 +00:00
parent 1301515197
commit 1ca2a583cb
1 changed files with 23 additions and 5 deletions
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28
lib/Analysis/CFGPrinter.cpp
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@ -25,8 +25,7 @@
#include "llvm/Support/CFG.h"
#include <sstream>
#include <fstream>
namespace llvm {
using namespace llvm;
/// CFGOnly flag - This is used to control whether or not the CFG graph printer
/// prints out the contents of basic blocks or not. This is acceptable because
@ -34,6 +33,7 @@ namespace llvm {
///
static bool CFGOnly = false;
namespace llvm {
template<>
struct DOTGraphTraits<const Function*> : public DefaultDOTGraphTraits {
static std::string getGraphName(const Function *F) {
@ -87,6 +87,7 @@ struct DOTGraphTraits<const Function*> : public DefaultDOTGraphTraits {
return "";
}
};
}
namespace {
struct CFGPrinter : public FunctionPass {
@ -112,7 +113,26 @@ namespace {
RegisterAnalysis<CFGPrinter> P1("print-cfg",
"Print CFG of function to 'dot' file");
};
struct CFGOnlyPrinter : public CFGPrinter {
virtual bool runOnFunction(Function &F) {
bool OldCFGOnly = CFGOnly;
CFGOnly = true;
CFGPrinter::runOnFunction(F);
CFGOnly = OldCFGOnly;
return false;
}
void print(std::ostream &OS) const {}
virtual void getAnalysisUsage(AnalysisUsage &AU) const {
AU.setPreservesAll();
}
};
RegisterAnalysis<CFGOnlyPrinter>
P2("print-cfg-only",
"Print CFG of function to 'dot' file (with no function bodies)");
}
/// viewCFG - This function is meant for use from the debugger. You can just
/// say 'call F->viewCFG()' and a ghostview window should pop up from the
@ -153,5 +173,3 @@ void Function::viewCFGOnly() const {
viewCFG();
CFGOnly = false;
}
} // End llvm namespace