commit 0039abf4e1fa72d34420d12aa357b151674f3f21
author Chris Lattner <sabre@nondot.org> Fri Feb 26 08:15:02 2010 +0000
committer Chris Lattner <sabre@nondot.org> Fri Feb 26 08:15:02 2010 +0000
tree 4067fc44b3c9545da4e8d4bb297bcca8c99e7e1f
parent 92a2246ba9fd934db5b2ba107564d5ee616297ae

add some helpful comments to the emitter



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97219 91177308-0d34-0410-b5e6-96231b3b80d8

utils/TableGen/DAGISelMatcherEmitter.cpp

diff --git a/utils/TableGen/DAGISelMatcherEmitter.cpp b/utils/TableGen/DAGISelMatcherEmitter.cpp
index d2eab27..7c0846a 100644
--- a/utils/TableGen/DAGISelMatcherEmitter.cpp
+++ b/utils/TableGen/DAGISelMatcherEmitter.cpp
@@ -204,6 +204,12 @@
       assert(ChildSize != 0 && "Should not have a zero-sized child!");
     
       CurrentIdx += EmitVBRValue(ChildSize, OS);
+      OS << "/*->" << CurrentIdx+ChildSize << "*/";
+      
+      if (i == 0)
+        OS.PadToColumn(CommentIndent) << "// " << SM->getNumChildren()
+          << " children in Scope";
+      
       OS << '\n' << TmpBuf.str();
       CurrentIdx += ChildSize;
     }