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make DOTGraphTraits public, patch by Tobias Grosser!

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llvm-svn: 84396
This commit is contained in:
Chris Lattner 2009-10-18 04:09:11 +00:00
parent 634b65ee79
commit f202995415
2 changed files with 63 additions and 61 deletions
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61
include/llvm/Analysis/CFGPrinter.h
View File

@ -15,6 +15,67 @@
#ifndef LLVM_ANALYSIS_CFGPRINTER_H
#define LLVM_ANALYSIS_CFGPRINTER_H
#include "llvm/Function.h"
#include "llvm/Instructions.h"
#include "llvm/Assembly/Writer.h"
#include "llvm/Support/CFG.h"
#include "llvm/Support/GraphWriter.h"
namespace llvm {
template<>
struct DOTGraphTraits<const Function*> : public DefaultDOTGraphTraits {
static std::string getGraphName(const Function *F) {
return "CFG for '" + F->getNameStr() + "' function";
}
static std::string getNodeLabel(const BasicBlock *Node,
const Function *Graph,
bool ShortNames) {
if (ShortNames && !Node->getName().empty())
return Node->getNameStr() + ":";
std::string Str;
raw_string_ostream OS(Str);
if (ShortNames) {
WriteAsOperand(OS, Node, false);
return OS.str();
}
if (Node->getName().empty()) {
WriteAsOperand(OS, Node, false);
OS << ":";
}
OS << *Node;
std::string OutStr = OS.str();
if (OutStr[0] == '\n') OutStr.erase(OutStr.begin());
// Process string output to make it nicer...
for (unsigned i = 0; i != OutStr.length(); ++i)
if (OutStr[i] == '\n') { // Left justify
OutStr[i] = '\\';
OutStr.insert(OutStr.begin()+i+1, 'l');
} else if (OutStr[i] == ';') { // Delete comments!
unsigned Idx = OutStr.find('\n', i+1); // Find end of line
OutStr.erase(OutStr.begin()+i, OutStr.begin()+Idx);
--i;
}
return OutStr;
}
static std::string getEdgeSourceLabel(const BasicBlock *Node,
succ_const_iterator I) {
// Label source of conditional branches with "T" or "F"
if (const BranchInst *BI = dyn_cast<BranchInst>(Node->getTerminator()))
if (BI->isConditional())
return (I == succ_begin(Node)) ? "T" : "F";
return "";
}
};
} // End llvm namespace
namespace llvm {
class FunctionPass;
FunctionPass *createCFGPrinterPass ();

63
lib/Analysis/CFGPrinter.cpp
View File

@ -17,71 +17,12 @@
//
//===----------------------------------------------------------------------===//
#include "llvm/Function.h"
#include "llvm/Instructions.h"
#include "llvm/Pass.h"
#include "llvm/Analysis/CFGPrinter.h"
#include "llvm/Assembly/Writer.h"
#include "llvm/Support/CFG.h"
#include "llvm/Pass.h"
#include "llvm/Support/Compiler.h"
#include "llvm/Support/GraphWriter.h"
using namespace llvm;
namespace llvm {
template<>
struct DOTGraphTraits<const Function*> : public DefaultDOTGraphTraits {
static std::string getGraphName(const Function *F) {
return "CFG for '" + F->getNameStr() + "' function";
}
static std::string getNodeLabel(const BasicBlock *Node,
const Function *Graph,
bool ShortNames) {
if (ShortNames && !Node->getName().empty())
return Node->getNameStr() + ":";
std::string Str;
raw_string_ostream OS(Str);
if (ShortNames) {
WriteAsOperand(OS, Node, false);
return OS.str();
}
if (Node->getName().empty()) {
WriteAsOperand(OS, Node, false);
OS << ":";
}
OS << *Node;
std::string OutStr = OS.str();
if (OutStr[0] == '\n') OutStr.erase(OutStr.begin());
// Process string output to make it nicer...
for (unsigned i = 0; i != OutStr.length(); ++i)
if (OutStr[i] == '\n') { // Left justify
OutStr[i] = '\\';
OutStr.insert(OutStr.begin()+i+1, 'l');
} else if (OutStr[i] == ';') { // Delete comments!
unsigned Idx = OutStr.find('\n', i+1); // Find end of line
OutStr.erase(OutStr.begin()+i, OutStr.begin()+Idx);
--i;
}
return OutStr;
}
static std::string getEdgeSourceLabel(const BasicBlock *Node,
succ_const_iterator I) {
// Label source of conditional branches with "T" or "F"
if (const BranchInst *BI = dyn_cast<BranchInst>(Node->getTerminator()))
if (BI->isConditional())
return (I == succ_begin(Node)) ? "T" : "F";
return "";
}
};
}
namespace {
struct VISIBILITY_HIDDEN CFGViewer : public FunctionPass {
static char ID; // Pass identifcation, replacement for typeid