3 files changed, 60 insertions, 3 deletions
diff --git a/include/chilldebug.h b/include/chilldebug.h
index 865f1f6..8678749 100644
--- a/include/chilldebug.h
+++ b/include/chilldebug.h
@@ -1,8 +1,6 @@
 
 // a central place to turn on debugging messages
 
-// enable the next line to get lots of output 
-//#define DEBUGCHILL
 #ifndef DEBUGCHILL_H
 #define DEBUGCHILL_H
 
diff --git a/include/irtools.hh b/include/irtools.hh
index a3b552a..6648847 100644
--- a/include/irtools.hh
+++ b/include/irtools.hh
@@ -33,12 +33,41 @@ struct ir_tree_node {
   }
 };
 
+//! Build IR tree from the source code
+/*!
+ * Block type node can only be leaf, i.e., there is no further stuctures inside a block allowed
+ * @param control
+ * @param parent
+ * @return
+ */
 std::vector<ir_tree_node *> build_ir_tree(IR_Control *control,
                                           ir_tree_node *parent = NULL);
+//! Extract statements from IR tree
+/*!
+ * Statements returned are ordered in lexical order in the source code
+ * @param ir_tree
+ * @return
+ */
 std::vector<ir_tree_node *> extract_ir_stmts(
   const std::vector<ir_tree_node *> &ir_tree);
 bool is_dependence_valid(ir_tree_node *src_node, ir_tree_node *dst_node,
                          const DependenceVector &dv, bool before);
+//! test data dependeces between two statements
+/*!
+ * The first statement in parameter must be lexically before the second statement in parameter.
+ * Returned dependences are all lexicographically positive
+ * @param ir
+ * @param repr1
+ * @param IS1
+ * @param repr2
+ * @param IS2
+ * @param freevar
+ * @param index
+ * @param i
+ * @param j
+ * @return Dependecies between the two statements. First vector is dependencies from first to second,
+ * second vector is the reverse
+ */
 std::pair<std::vector<DependenceVector>, std::vector<DependenceVector> > test_data_dependences(
   IR_Code *ir, const omega::CG_outputRepr *repr1,
   const omega::Relation &IS1, const omega::CG_outputRepr *repr2,
diff --git a/include/loop.hh b/include/loop.hh
index 9620489..e02b7e9 100644
--- a/include/loop.hh
+++ b/include/loop.hh
@@ -148,8 +148,38 @@ public:
   void tile(int stmt_num, int level, int tile_size, int outer_level = 1, TilingMethodType method = StridedTile, int alignment_offset = 0, int alignment_multiple = 1);
   std::set<int> split(int stmt_num, int level, const omega::Relation &cond);
   std::set<int> unroll(int stmt_num, int level, int unroll_amount, std::vector< std::vector<std::string> >idxNames= std::vector< std::vector<std::string> >(), int cleanup_split_level = 0);
-  
+
+  //! Datacopy function by reffering arrays by numbers
+  /*!
+   * for example
+   * ~~~
+   * A[i] = A[i-1] + B[i];
+   * ~~~
+   * parameter array_ref_num=[0,2] means to copy data touched by A[i-1] and A[i]
+   *
+   * @param array_ref_nums
+   * @param level
+   * @param allow_extra_read
+   * @param fastest_changing_dimension
+   * @param padding_stride
+   * @param padding_alignment
+   * @param memory_type
+   * @return
+   */
   bool datacopy(const std::vector<std::pair<int, std::vector<int> > > &array_ref_nums, int level, bool allow_extra_read = false, int fastest_changing_dimension = -1, int padding_stride = 1, int padding_alignment = 4, int memory_type = 0);
+  //! Datacopy function by reffering arrays by name
+  /*!
+   * parameter array_name=A means to copy data touched by A[i-1] and A[i]
+   * @param stmt_num
+   * @param level
+   * @param array_name
+   * @param allow_extra_read
+   * @param fastest_changing_dimension
+   * @param padding_stride
+   * @param padding_alignment
+   * @param memory_type
+   * @return
+   */
   bool datacopy(int stmt_num, int level, const std::string &array_name, bool allow_extra_read = false, int fastest_changing_dimension = -1, int padding_stride = 1, int padding_alignment = 4, int memory_type = 0);
   bool datacopy_privatized(int stmt_num, int level, const std::string &array_name, const std::vector<int> &privatized_levels, bool allow_extra_read = false, int fastest_changing_dimension = -1, int padding_stride = 1, int padding_alignment = 1, int memory_type = 0);
   bool datacopy_privatized(const std::vector<std::pair<int, std::vector<int> > > &array_ref_nums, int level, const std::vector<int> &privatized_levels, bool allow_extra_read = false, int fastest_changing_dimension = -1, int padding_stride = 1, int padding_alignment = 1, int memory_type = 0);