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,
DEFTREECODE (ENUMERAL_TYPE, "enumeral_type", tcc_type, 0)
/* Boolean type (true or false are the only values). Looks like an
- INTEGRAL_TYPE. */
+ INTEGRAL_TYPE. */
DEFTREECODE (BOOLEAN_TYPE, "boolean_type", tcc_type, 0)
/* CHAR in Java; not used in C. Looks like an INTEGRAL_TYPE. */
/* The ordering of the following codes is optimized for the checking
macros in tree.h. Changing the order will degrade the speed of the
compiler. POINTER_TYPE, REFERENCE_TYPE. Note that this range
- overlaps the previous range of ordered types. */
+ overlaps the previous range of ordered types. */
/* All pointer-to-x types have code POINTER_TYPE.
The TREE_TYPE points to the node for the type pointed to. */
includes the hidden argument for "self". */
DEFTREECODE (METHOD_TYPE, "method_type", tcc_type, 0)
-/* Used for Pascal; details not determined right now. */
-DEFTREECODE (FILE_TYPE, "file_type", tcc_type, 0)
-
/* This is a language-specific kind of type.
Its meaning is defined by the language front end.
layout_type does not know how to lay this out,
FUNCTION_DECLs use four special fields:
DECL_ARGUMENTS holds a chain of PARM_DECL nodes for the arguments.
- DECL_RESULT holds a RESULT_DECL node for the value of a function,
- or it is 0 for a function that returns no value.
+ DECL_RESULT holds a RESULT_DECL node for the value of a function.
+ The DECL_RTL field is 0 for a function that returns no value.
(C functions returning void have zero here.)
The TREE_TYPE field is the type in which the result is actually
returned. This is usually the same as the return type of the
/* 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.
have VOID_TYPE. The same constraints apply to operand 2. */
DEFTREECODE (COND_EXPR, "cond_expr", tcc_expression, 3)
-/* Vector conditional expresion. It is like COND_EXPR, but with
+/* Vector conditional expression. It is like COND_EXPR, but with
vector operands.
A = VEC_COND_EXPR ( X < Y, B, C)
PHI_ARG_ELT returns the Ith tuple <ssa_name, edge> from the
argument list. Each tuple contains the incoming reaching
definition (SSA_NAME node) and the edge via which that definition
- is coming through. */
+ is coming through. */
DEFTREECODE (PHI_NODE, "phi_node", tcc_exceptional, 0)
/* Used to represent a typed exception handler. CATCH_TYPES is the type (or
the same value, they will be assigned the same value handle. */
DEFTREECODE (VALUE_HANDLE, "value_handle", tcc_exceptional, 0)
+/* Predicate assertion. Artificial expression generated by the optimizers
+ to keep track of predicate values. This expression may only appear on
+ the RHS of assignments.
+
+ Given X = ASSERT_EXPR <Y, EXPR>, the optimizers can infer
+ two things:
+
+ 1- X is a copy of Y.
+ 2- EXPR is a GIMPLE conditional expression (as defined by
+ is_gimple_condexpr) and is known to be true.
+
+ The type of the expression is the same as Y. */
+DEFTREECODE (ASSERT_EXPR, "assert_expr", tcc_expression, 2)
+
/* Base class information. Holds information about a class as a
baseclass of itself or another class. */
DEFTREECODE (TREE_BINFO, "tree_binfo", tcc_exceptional, 0)
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
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