Add new Pass infrastructure and some examples

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@836 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 35 insertions, 0 deletions

diff --git a/include/llvm/Transforms/PrintModulePass.h b/include/llvm/Transforms/PrintModulePass.h
new file mode 100644
index 0000000000..90cd369f7b
--- /dev/null
+++ b/include/llvm/Transforms/PrintModulePass.h
@@ -0,0 +1,35 @@
+//===- llvm/Transforms/PrintModulePass.h - Printing Pass ---------*- C++ -*--=//
+//
+// This file defines a simple pass to print out methods of a module as they are
+// processed.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_TRANSFORMS_PRINTMODULE_H
+#define LLVM_TRANSFORMS_PRINTMODULE_H
+
+#include "llvm/Transforms/Pass.h"
+#include "llvm/Assembly/Writer.h"
+
+class PrintModulePass : public ConcretePass<PrintModulePass> {
+  string Banner;          // String to print before each method
+  ostream *Out;           // ostream to print on
+  bool DeleteStream;      // Delete the ostream in our dtor?
+public:
+  inline PrintModulePass(const string &B, ostream *o = &cout, bool DS = false) 
+    : Banner(B), Out(o), DeleteStream(DS) {}
+
+  ~PrintModulePass() {
+    if (DeleteStream) delete Out;
+  }
+
+  // doPerMethodWork - This pass just prints a banner followed by the method as
+  // it's processed.
+  //
+  bool doPerMethodWorkVirt(Method *M) {
+    (*Out) << Banner << M;
+    return false;
+  }
+};
+
+#endif