diff --git a/hpvm/lib/Transforms/GenHPVM/GenHPVM.cpp b/hpvm/lib/Transforms/GenHPVM/GenHPVM.cpp
index d6ad357a33dee7014ef703c7abba00c28b325378..18b851c9461bcebb67d941ae6f8a8fba56fcc9f7 100644
--- a/hpvm/lib/Transforms/GenHPVM/GenHPVM.cpp
+++ b/hpvm/lib/Transforms/GenHPVM/GenHPVM.cpp
@@ -6,6 +6,12 @@
 // License. See LICENSE.TXT for details.
 //
 //===----------------------------------------------------------------------===//
+//
+// This pass takes LLVM IR with HPVM-C functions to generate textual representa-
+// -tion for HPVM IR consisting of HPVM intrinsics. Memory-to-register 
+// optimization pass is expected to execute prior to execution of this pass.
+//
+//===----------------------------------------------------------------------===//
 
 #define DEBUG_TYPE "genhpvm"
 #include "GenHPVM/GenHPVM.h"