2005-11-09 Andreas Krebbel <krebbel1@de.ibm.com>

[pf3gnuchains/gcc-fork.git] / gcc / tree.def

diff --git a/gcc/tree.def b/gcc/tree.def
index 3806f5b..c1348aa 100644 (file)
--- a/gcc/tree.def
+++ b/gcc/tree.def
@@ -17,8 +17,8 @@ for more details.
 
 You should have received a copy of the GNU General Public License
 along with GCC; see the file COPYING.  If not, write to the Free
-Software Foundation, 59 Temple Place - Suite 330, Boston, MA
-02111-1307, USA.  */
+Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA
+02110-1301, USA.  */
 
 
 /* For tcc_references, tcc_expression, tcc_comparison, tcc_unary,
@@ -435,19 +435,19 @@ DEFTREECODE (FILTER_EXPR, "filter_expr", tcc_expression, 0)
 
 /* Constructor: return an aggregate value made from specified components.
    In C, this is used only for structure and array initializers.
-   The operand is a list of component values made out of a chain of
-   TREE_LIST nodes.
+   The operand is a sequence of component values made out of a VEC of
+   struct constructor_elt.
 
    For ARRAY_TYPE:
-   The TREE_PURPOSE of each node is the corresponding index.
-   If the TREE_PURPOSE is a RANGE_EXPR, it is a short-hand for many nodes,
-   one for each index in the range.  (If the corresponding TREE_VALUE
+   The field INDEX of each constructor_elt is the corresponding index.
+   If the index is a RANGE_EXPR, it is a short-hand for many nodes,
+   one for each index in the range.  (If the corresponding field VALUE
    has side-effects, they are evaluated once for each element.  Wrap the
    value in a SAVE_EXPR if you want to evaluate side effects only once.)
 
    For RECORD_TYPE, UNION_TYPE, or QUAL_UNION_TYPE:
-   The TREE_PURPOSE of each node is a FIELD_DECL.  */
-DEFTREECODE (CONSTRUCTOR, "constructor", tcc_expression, 1)
+   The field INDEX of each node is a FIELD_DECL.  */
+DEFTREECODE (CONSTRUCTOR, "constructor", tcc_exceptional, 0)
 
 /* The expression types are mostly straightforward, with the fourth argument
    of DEFTREECODE saying how many operands there are.
@@ -935,6 +935,34 @@ DEFTREECODE (WITH_SIZE_EXPR, "with_size_expr", tcc_expression, 2)
    generated by the builtin targetm.vectorize.mask_for_load_builtin_decl.  */
 DEFTREECODE (REALIGN_LOAD_EXPR, "realign_load", tcc_expression, 3)
 
+/* Low-level memory addressing.  Operands are SYMBOL (static or global
+   variable), BASE (register), INDEX (register), STEP (integer constant),
+   OFFSET (integer constant).  Corresponding address is
+   SYMBOL + BASE + STEP * INDEX + OFFSET.  Only variations and values valid on
+   the target are allowed.
+   
+   The sixth argument is the reference to the original memory access, which
+   is preserved for the purposes of the RTL alias analysis.  The seventh
+   argument is a tag representing results of the tree level alias analysis.  */
+
+DEFTREECODE (TARGET_MEM_REF, "target_mem_ref", tcc_reference, 7)
+
+/* Reduction operations. 
+   Operations that take a vector of elements and "reduce" it to a scalar
+   result (e.g. summing the elements of the vector, finding the minimum over
+   the vector elements, etc).
+   Operand 0 is a vector; the first element in the vector has the result.
+   Operand 1 is a vector.  */ 
+DEFTREECODE (REDUC_MAX_EXPR, "reduc_max_expr", tcc_unary, 1)
+DEFTREECODE (REDUC_MIN_EXPR, "reduc_min_expr", tcc_unary, 1)
+DEFTREECODE (REDUC_PLUS_EXPR, "reduc_plus_expr", tcc_unary, 1)
+
+/* Whole vector left/right shift in bits.
+   Operand 0 is a vector to be shifted.
+   Operand 1 is an integer shift amount in bits.  */
+DEFTREECODE (VEC_LSHIFT_EXPR, "vec_lshift_expr", tcc_binary, 2)
+DEFTREECODE (VEC_RSHIFT_EXPR, "vec_rshift_expr", tcc_binary, 2)
+
 /*
 Local variables:
 mode:c