It's not necessary to do rounding for alloca operations when the requested
alignment is equal to the stack alignment.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40004 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/tools/opt/GraphPrinters.cpp b/tools/opt/GraphPrinters.cpp
new file mode 100644
index 0000000..5bf9088
--- /dev/null
+++ b/tools/opt/GraphPrinters.cpp
@@ -0,0 +1,83 @@
+//===- GraphPrinters.cpp - DOT printers for various graph types -----------===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file was developed by the LLVM research group and is distributed under
+// the University of Illinois Open Source License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This file defines several printers for various different types of graphs used
+// by the LLVM infrastructure. It uses the generic graph interface to convert
+// the graph into a .dot graph. These graphs can then be processed with the
+// "dot" tool to convert them to postscript or some other suitable format.
+//
+//===----------------------------------------------------------------------===//
+
+#include "llvm/Support/GraphWriter.h"
+#include "llvm/Pass.h"
+#include "llvm/Value.h"
+#include "llvm/Analysis/CallGraph.h"
+#include <iostream>
+#include <fstream>
+using namespace llvm;
+
+template<typename GraphType>
+static void WriteGraphToFile(std::ostream &O, const std::string &GraphName,
+ const GraphType >) {
+ std::string Filename = GraphName + ".dot";
+ O << "Writing '" << Filename << "'...";
+ std::ofstream F(Filename.c_str());
+
+ if (F.good())
+ WriteGraph(F, GT);
+ else
+ O << " error opening file for writing!";
+ O << "\n";
+}
+
+
+//===----------------------------------------------------------------------===//
+// Call Graph Printer
+//===----------------------------------------------------------------------===//
+
+namespace llvm {
+ template<>
+ struct DOTGraphTraits<CallGraph*> : public DefaultDOTGraphTraits {
+ static std::string getGraphName(CallGraph *F) {
+ return "Call Graph";
+ }
+
+ static std::string getNodeLabel(CallGraphNode *Node, CallGraph *Graph) {
+ if (Node->getFunction())
+ return ((Value*)Node->getFunction())->getName();
+ else
+ return "Indirect call node";
+ }
+ };
+}
+
+
+namespace {
+ struct CallGraphPrinter : public ModulePass {
+ static char ID; // Pass ID, replacement for typeid
+ CallGraphPrinter() : ModulePass((intptr_t)&ID) {}
+
+ virtual bool runOnModule(Module &M) {
+ WriteGraphToFile(std::cerr, "callgraph", &getAnalysis<CallGraph>());
+ return false;
+ }
+
+ void print(std::ostream &OS) const {}
+ void print(std::ostream &OS, const llvm::Module*) const {}
+
+ virtual void getAnalysisUsage(AnalysisUsage &AU) const {
+ AU.addRequired<CallGraph>();
+ AU.setPreservesAll();
+ }
+ };
+
+ char CallGraphPrinter::ID = 0;
+ RegisterPass<CallGraphPrinter> P2("print-callgraph",
+ "Print Call Graph to 'dot' file");
+}