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;; Predicate definitions for Xtensa.
;; Copyright (C) 2005, 2006, 2007, 2008 Free Software Foundation, Inc.
;;
;; This file is part of GCC.
;;
;; GCC is free software; you can redistribute it and/or modify
;; it under the terms of the GNU General Public License as published by
;; the Free Software Foundation; either version 3, or (at your option)
;; any later version.
;;
;; GCC is distributed in the hope that it will be useful,
;; but WITHOUT ANY WARRANTY; without even the implied warranty of
;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
;; GNU General Public License for more details.
;;
;; You should have received a copy of the GNU General Public License
;; along with GCC; see the file COPYING3. If not see
;; <http://www.gnu.org/licenses/>.
(define_predicate "add_operand"
(ior (and (match_code "const_int")
(match_test "xtensa_simm8 (INTVAL (op))
|| xtensa_simm8x256 (INTVAL (op))"))
(match_operand 0 "register_operand")))
(define_predicate "addsubx_operand"
(and (match_code "const_int")
(match_test "INTVAL (op) == 2
|| INTVAL (op) == 4
|| INTVAL (op) == 8")))
(define_predicate "arith_operand"
(ior (and (match_code "const_int")
(match_test "xtensa_simm8 (INTVAL (op))"))
(match_operand 0 "register_operand")))
;; Non-immediate operand excluding the constant pool.
(define_predicate "nonimmed_operand"
(ior (and (match_operand 0 "memory_operand")
(match_test "!constantpool_mem_p (op)"))
(match_operand 0 "register_operand")))
;; Memory operand excluding the constant pool.
(define_predicate "mem_operand"
(and (match_operand 0 "memory_operand")
(match_test "!constantpool_mem_p (op)")))
;; Memory operand in the constant pool.
(define_predicate "constantpool_operand"
(match_test "constantpool_mem_p (op)"))
(define_predicate "mask_operand"
(ior (and (match_code "const_int")
(match_test "xtensa_mask_immediate (INTVAL (op))"))
(match_operand 0 "register_operand")))
(define_predicate "extui_fldsz_operand"
(and (match_code "const_int")
(match_test "xtensa_mask_immediate ((1 << INTVAL (op)) - 1)")))
(define_predicate "sext_operand"
(if_then_else (match_test "TARGET_SEXT")
(match_operand 0 "nonimmed_operand")
(match_operand 0 "mem_operand")))
(define_predicate "sext_fldsz_operand"
(and (match_code "const_int")
(match_test "INTVAL (op) >= 8 && INTVAL (op) <= 23")))
(define_predicate "lsbitnum_operand"
(and (match_code "const_int")
(match_test "BITS_BIG_ENDIAN
? (INTVAL (op) == BITS_PER_WORD - 1)
: (INTVAL (op) == 0)")))
(define_predicate "branch_operand"
(ior (and (match_code "const_int")
(match_test "xtensa_b4const_or_zero (INTVAL (op))"))
(match_operand 0 "register_operand")))
(define_predicate "ubranch_operand"
(ior (and (match_code "const_int")
(match_test "xtensa_b4constu (INTVAL (op))"))
(match_operand 0 "register_operand")))
(define_predicate "call_insn_operand"
(match_code "const_int,const,symbol_ref,reg")
{
if ((GET_CODE (op) == REG)
&& (op != arg_pointer_rtx)
&& ((REGNO (op) < FRAME_POINTER_REGNUM)
|| (REGNO (op) > LAST_VIRTUAL_REGISTER)))
return true;
if (CONSTANT_ADDRESS_P (op))
{
/* Direct calls only allowed to static functions with PIC. */
if (flag_pic)
{
tree callee, callee_sec, caller_sec;
if (GET_CODE (op) != SYMBOL_REF
|| !SYMBOL_REF_LOCAL_P (op) || SYMBOL_REF_EXTERNAL_P (op))
return false;
/* Don't attempt a direct call if the callee is known to be in
a different section, since there's a good chance it will be
out of range. */
if (flag_function_sections
|| DECL_ONE_ONLY (current_function_decl))
return false;
caller_sec = DECL_SECTION_NAME (current_function_decl);
callee = SYMBOL_REF_DECL (op);
if (callee)
{
if (DECL_ONE_ONLY (callee))
return false;
callee_sec = DECL_SECTION_NAME (callee);
if (((caller_sec == NULL_TREE) ^ (callee_sec == NULL_TREE))
|| (caller_sec != NULL_TREE
&& strcmp (TREE_STRING_POINTER (caller_sec),
TREE_STRING_POINTER (callee_sec)) != 0))
return false;
}
else if (caller_sec != NULL_TREE)
return false;
}
return true;
}
return false;
})
(define_predicate "move_operand"
(ior
(ior (match_operand 0 "register_operand")
(and (match_operand 0 "memory_operand")
(match_test "!constantpool_mem_p (op)
|| GET_MODE_SIZE (mode) % UNITS_PER_WORD == 0")))
(ior (and (match_code "const_int")
(match_test "GET_MODE_CLASS (mode) == MODE_INT
&& xtensa_simm12b (INTVAL (op))"))
(and (match_code "const_int,const_double,const,symbol_ref,label_ref")
(match_test "TARGET_CONST16 && CONSTANT_P (op)
&& GET_MODE_SIZE (mode) % UNITS_PER_WORD == 0")))))
;; Accept the floating point constant 1 in the appropriate mode.
(define_predicate "const_float_1_operand"
(match_code "const_double")
{
REAL_VALUE_TYPE d;
REAL_VALUE_FROM_CONST_DOUBLE (d, op);
return REAL_VALUES_EQUAL (d, dconst1);
})
(define_predicate "fpmem_offset_operand"
(and (match_code "const_int")
(match_test "xtensa_mem_offset (INTVAL (op), SFmode)")))
(define_predicate "branch_operator"
(match_code "eq,ne,lt,ge"))
(define_predicate "ubranch_operator"
(match_code "ltu,geu"))
(define_predicate "boolean_operator"
(match_code "eq,ne"))
(define_predicate "xtensa_cstoresi_operator"
(match_code "eq,ne,gt,ge,lt,le"))
(define_predicate "tls_symbol_operand"
(and (match_code "symbol_ref")
(match_test "SYMBOL_REF_TLS_MODEL (op) != 0")))
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