From 3ba36dc30cbf96d9d7e46859924a971bec2210da Mon Sep 17 00:00:00 2001
From: Wilson Snyder <wsnyder@wsnyder.org>
Date: Sat, 28 Apr 2012 12:22:38 -0400
Subject: [PATCH] Debugging: Show tree file writes, commentary

---
 internals.pod | 6 ++++--
 src/.gdbinit  | 7 +++++++
 src/V3Ast.cpp | 1 +
 3 files changed, 12 insertions(+), 2 deletions(-)

diff --git a/internals.pod b/internals.pod
index b555a3465..0a51b5aa8 100644
--- a/internals.pod
+++ b/internals.pod
@@ -527,8 +527,10 @@ what made a <e####> line in the tree dumps):
 
 To print a node:
 
-   call nodep->dumpGdb()      # aliased to "pn" in src/.gdbinit
-   call nodep->dumpTreeGdb()  # aliased to "pnt" in src/.gdbinit
+   pn nodep
+   # or: call nodep->dumpGdb() # aliased to "pn" in src/.gdbinit
+   pnt nodep
+   # or: call nodep->dumpTreeGdb()  # aliased to "pnt" in src/.gdbinit
 
 When GDB halts, it is useful to understand that the backtrace will commonly
 show the iterator functions between each invocation of C<visit> in the
diff --git a/src/.gdbinit b/src/.gdbinit
index 47b6a8929..9cfe8c654 100644
--- a/src/.gdbinit
+++ b/src/.gdbinit
@@ -18,3 +18,10 @@ end
 document pnt
   Verilator: Print AstNode NODEP's tree
 end
+
+define watchedit
+   watch AstNode::s_editCntGbl==$arg0
+end
+document watchedit
+  Verilator: Create watch on where a edit number is made
+end
diff --git a/src/V3Ast.cpp b/src/V3Ast.cpp
index 8d76b763e..456c1bef4 100644
--- a/src/V3Ast.cpp
+++ b/src/V3Ast.cpp
@@ -1011,6 +1011,7 @@ void AstNode::dumpTreeAndNext(ostream& os, const string& indent, int maxDepth) {
 void AstNode::dumpTreeFile(const string& filename, bool append) {
     if (v3Global.opt.dumpTree()) {
 	{   // Write log & close
+	    UINFO(2,"Dumping "<<filename<<endl);
 	    const auto_ptr<ofstream> logsp (V3File::new_ofstream(filename, append));
 	    if (logsp->fail()) v3fatalSrc("Can't write "<<filename);
 	    *logsp<<"Tree Dump from <e"<<dec<<editCountLast()<<">";