/* This file contains the definitions and documentation for the
tree codes used in GCC.
- Copyright (C) 1987, 1988, 1993, 1995, 1997, 1998, 2000, 2001, 2004, 2005
- Free Software Foundation, Inc.
+ Copyright (C) 1987, 1988, 1993, 1995, 1997, 1998, 2000, 2001, 2004, 2005,
+ 2006 Free Software Foundation, Inc.
This file is part of GCC.
For a block which represents the outermost scope of a function, it
points to the FUNCTION_DECL node.
BLOCK_VARS points to a chain of decl nodes.
- BLOCK_TYPE_TAGS points to a chain of types which have their own names.
BLOCK_CHAIN points to the next BLOCK at the same level.
BLOCK_ABSTRACT_ORIGIN points to the original (abstract) tree node which
this block is an instance of, or else is NULL to indicate that this
/* 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. OFFSET_TYPE, ENUMERAL_TYPE, BOOLEAN_TYPE, CHAR_TYPE,
- INTEGER_TYPE, REAL_TYPE, POINTER_TYPE. */
+ compiler. OFFSET_TYPE, ENUMERAL_TYPE, BOOLEAN_TYPE, INTEGER_TYPE,
+ REAL_TYPE, POINTER_TYPE. */
/* An offset is a pointer relative to an object.
The TREE_TYPE field is the type of the object at the offset.
INTEGRAL_TYPE. */
DEFTREECODE (BOOLEAN_TYPE, "boolean_type", tcc_type, 0)
-/* CHAR in Java; not used in C. Looks like an INTEGRAL_TYPE. */
-DEFTREECODE (CHAR_TYPE, "char_type", tcc_type, 0)
-
/* Integer types in all languages, including char in C.
Also used for sub-ranges of other discrete types.
Has components TYPE_MIN_VALUE, TYPE_MAX_VALUE (expressions, inclusive)
and TYPE_PRECISION (number of bits used by this type).
In the case of a subrange type in Pascal, the TREE_TYPE
of this will point at the supertype (another INTEGER_TYPE,
- or an ENUMERAL_TYPE, CHAR_TYPE, or BOOLEAN_TYPE).
+ or an ENUMERAL_TYPE or BOOLEAN_TYPE).
Otherwise, the TREE_TYPE is zero. */
DEFTREECODE (INTEGER_TYPE, "integer_type", tcc_type, 0)
virtual SSA. */
DEFTREECODE (STRUCT_FIELD_TAG, "struct_field_tag", tcc_declaration, 0)
DEFTREECODE (NAME_MEMORY_TAG, "name_memory_tag", tcc_declaration, 0)
-DEFTREECODE (TYPE_MEMORY_TAG, "type_memory_tag", tcc_declaration, 0)
+DEFTREECODE (SYMBOL_MEMORY_TAG, "symbol_memory_tag", tcc_declaration, 0)
/* A namespace declaration. Namespaces appear in DECL_CONTEXT of other
_DECLs, providing a hierarchy of names. */
DEFTREECODE (MODIFY_EXPR, "modify_expr", tcc_expression, 2)
/* Initialization expression. Operand 0 is the variable to initialize;
- Operand 1 is the initializer. */
+ Operand 1 is the initializer. This differs from MODIFY_EXPR in that any
+ reference to the referent of operand 0 within operand 1 is undefined. */
DEFTREECODE (INIT_EXPR, "init_expr", tcc_expression, 2)
/* For TARGET_EXPR, operand 0 is the target of an initialization,
exposed to TREE_RANGE_CHECK. */
/* OpenMP - #pragma omp parallel [clause1 ... clauseN]
Operand 0: OMP_PARALLEL_BODY: Code to be executed by all threads.
- Operand 1: OMP_PARALLEL_CLAUSES: List of clauses. */
-DEFTREECODE (OMP_PARALLEL, "omp_parallel", tcc_statement, 2)
+ Operand 1: OMP_PARALLEL_CLAUSES: List of clauses.
+ Operand 2: OMP_PARALLEL_FN: FUNCTION_DECL used when outlining the
+ body of the parallel region. Only valid after
+ pass_lower_omp.
+ Operand 3: OMP_PARALLEL_DATA_ARG: Local variable in the parent
+ function containing data to be shared with the child
+ function. */
+
+DEFTREECODE (OMP_PARALLEL, "omp_parallel", tcc_statement, 4)
/* OpenMP - #pragma omp for [clause1 ... clauseN]
Operand 0: OMP_FOR_BODY: Loop body.
Operand 1: OMP_CRITICAL_NAME: Identifier for critical section. */
DEFTREECODE (OMP_CRITICAL, "omp_critical", tcc_statement, 2)
+/* Return from an OpenMP directive. */
+DEFTREECODE (OMP_RETURN, "omp_return", tcc_statement, 0)
+
+/* OpenMP - An intermediate tree code to mark the location of the
+ loop or sections iteration in the partially lowered code. */
+DEFTREECODE (OMP_CONTINUE, "omp_continue", tcc_statement, 0)
+
/* OpenMP - #pragma omp atomic
Operand 0: The address at which the atomic operation is to be performed.
This address should be stabilized with save_expr.
build_fold_indirect_ref of the address. */
DEFTREECODE (OMP_ATOMIC, "omp_atomic", tcc_statement, 2)
-/* The ordering of the codes between OMP_CLAUSE_PRIVATE and
- OMP_CLAUSE_DEFAULT is exposed to TREE_RANGE_CHECK. */
-/* OpenMP clause: private (variable_list). */
-DEFTREECODE (OMP_CLAUSE_PRIVATE, "private", tcc_expression, 1)
-
-/* OpenMP clause: shared (variable_list). */
-DEFTREECODE (OMP_CLAUSE_SHARED, "shared", tcc_expression, 1)
-
-/* OpenMP clause: firstprivate (variable_list). */
-DEFTREECODE (OMP_CLAUSE_FIRSTPRIVATE, "firstprivate", tcc_expression, 1)
-
-/* OpenMP clause: lastprivate (variable_list). */
-DEFTREECODE (OMP_CLAUSE_LASTPRIVATE, "lastprivate", tcc_expression, 1)
-
-/* OpenMP clause: reduction (operator:variable_list).
- OMP_CLAUSE_REDUCTION_CODE: The tree_code of the operator.
- Operand 1: OMP_CLAUSE_REDUCTION_INIT: Stmt-list to initialize the var.
- Operand 2: OMP_CLAUSE_REDUCTION_MERGE:
- Stmt-list to merge private var into the shared one.
- Operand 3: OMP_CLAUSE_REDUCTION_PLACEHOLDER:
- A dummy VAR_DECL placeholder used in OMP_CLAUSE_REDUCTION_MERGE. */
-DEFTREECODE (OMP_CLAUSE_REDUCTION, "reduction", tcc_expression, 4)
-
-/* OpenMP clause: copyin (variable_list). */
-DEFTREECODE (OMP_CLAUSE_COPYIN, "copyin", tcc_expression, 1)
-
-/* OpenMP clause: copyprivate (variable_list). */
-DEFTREECODE (OMP_CLAUSE_COPYPRIVATE, "copyprivate", tcc_expression, 1)
-
-/* OpenMP clause: if (scalar-expression). */
-DEFTREECODE (OMP_CLAUSE_IF, "if", tcc_expression, 1)
-
-/* OpenMP clause: num_threads (integer-expression). */
-DEFTREECODE (OMP_CLAUSE_NUM_THREADS, "num_threads", tcc_expression, 1)
-
-/* OpenMP clause: schedule. */
-DEFTREECODE (OMP_CLAUSE_SCHEDULE, "schedule", tcc_expression, 1)
-
-/* OpenMP clause: nowait. */
-DEFTREECODE (OMP_CLAUSE_NOWAIT, "nowait", tcc_expression, 0)
-
-/* OpenMP clause: ordered. */
-DEFTREECODE (OMP_CLAUSE_ORDERED, "ordered", tcc_expression, 0)
-
-/* OpenMP clause: default. */
-DEFTREECODE (OMP_CLAUSE_DEFAULT, "default", tcc_expression, 0)
+/* OpenMP clauses. */
+DEFTREECODE (OMP_CLAUSE, "omp_clause", tcc_exceptional, 0)
/* Reduction operations.
Operations that take a vector of elements and "reduce" it to a scalar
DEFTREECODE (REDUC_MIN_EXPR, "reduc_min_expr", tcc_unary, 1)
DEFTREECODE (REDUC_PLUS_EXPR, "reduc_plus_expr", tcc_unary, 1)
+/* Widenning dot-product.
+ The first two arguments are of type t1.
+ The third argument and the result are of type t2, such that t2 is at least
+ twice the size of t1. DOT_PROD_EXPR(arg1,arg2,arg3) is equivalent to:
+ tmp = WIDEN_MULT_EXPR(arg1, arg2);
+ arg3 = PLUS_EXPR (tmp, arg3);
+ or:
+ tmp = WIDEN_MULT_EXPR(arg1, arg2);
+ arg3 = WIDEN_SUM_EXPR (tmp, arg3); */
+DEFTREECODE (DOT_PROD_EXPR, "dot_prod_expr", tcc_expression, 3)
+
+/* Widenning summation.
+ The first argument is of type t1.
+ The second argument is of type t2, such that t2 is at least twice
+ the size of t1. The type of the entire expression is also t2.
+ WIDEN_SUM_EXPR is equivalent to first widening (promoting)
+ the first argument from type t1 to type t2, and then summing it
+ with the second argument. */
+DEFTREECODE (WIDEN_SUM_EXPR, "widen_sum_expr", tcc_binary, 2)
+
+/* Widenning multiplication.
+ The two arguments are of type t1.
+ The result is of type t2, such that t2 is at least twice
+ the size of t1. WIDEN_MULT_EXPR is equivalent to first widening (promoting)
+ the arguments from type t1 to type t2, and then multiplying them. */
+DEFTREECODE (WIDEN_MULT_EXPR, "widen_mult_expr", tcc_binary, 2)
+
/* Whole vector left/right shift in bits.
Operand 0 is a vector to be shifted.
Operand 1 is an integer shift amount in bits. */
OSDN Git Service
