+;; Operand and operator predicates for the GCC CRIS port.
+;; Copyright (C) 2005 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 2, 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 COPYING. If not, write to
+;; the Free Software Foundation, 59 Temple Place - Suite 330,
+;; Boston, MA 02111-1307, USA.
+
+
+;; Operator predicates.
+
+(define_predicate "cris_orthogonal_operator"
+ (match_code "plus, minus, ior, and, umin"))
+
+(define_predicate "cris_commutative_orth_op"
+ (match_code "plus, ior, and, umin"))
+
+;; By the name, you might think we should include MULT. We don't because
+;; it doesn't accept the same addressing modes as the others (only
+;; registers) and there's also the problem of handling TARGET_MUL_BUG.
+
+(define_predicate "cris_operand_extend_operator"
+ (match_code "plus, minus, umin"))
+
+(define_predicate "cris_additive_operand_extend_operator"
+ (match_code "plus, minus"))
+
+(define_predicate "cris_extend_operator"
+ (match_code "zero_extend, sign_extend"))
+
+(define_predicate "cris_plus_or_bound_operator"
+ (match_code "plus, umin"))
+
+;; Used as an operator to get a handle on a already-known-valid MEM rtx:es
+;; (no need to validate the address), where some address expression parts
+;; have their own match_operand.
+
+(define_predicate "cris_mem_op"
+ (match_code "mem"))
+
+(define_predicate "cris_load_multiple_op"
+ (and (match_code "parallel")
+ (match_test "cris_movem_load_rest_p (op, 0)")))
+
+(define_predicate "cris_store_multiple_op"
+ (and (match_code "parallel")
+ (match_test "cris_store_multiple_op_p (op)")))
+
+
+;; Operand helper predicates.
+
+(define_predicate "cris_bdap_const_operand"
+ (and (match_code "label_ref, symbol_ref, const_int, const_double, const")
+ (not (and (match_test "flag_pic")
+ (match_test "cris_symbol (op)")))))
+
+(define_predicate "cris_simple_address_operand"
+ (ior (match_operand:SI 0 "register_operand")
+ (and (match_code "post_inc")
+ (match_test "register_operand (XEXP (op, 0), Pmode)"))))
+
+(define_predicate "cris_simple_operand"
+ (ior (match_operand 0 "register_operand")
+ (and (match_code "mem")
+ (match_test "cris_simple_address_operand (XEXP (op, 0),
+ Pmode)"))))
+
+;; The caller needs to use :SI.
+(define_predicate "cris_bdap_sign_extend_operand"
+ (and (match_code "sign_extend")
+ (and (match_test "MEM_P (XEXP (op, 0))")
+ (match_test "cris_simple_address_operand (XEXP (XEXP (op, 0), 0),
+ Pmode)"))))
+
+;; FIXME: Should not have to test for 1.
+(define_predicate "cris_scale_int_operand"
+ (and (match_code "const_int")
+ (ior (ior (match_test "op == GEN_INT (4)")
+ (match_test "op == const2_rtx"))
+ (match_test "op == const1_rtx"))))
+
+;; FIXME: Should be able to assume (reg int).
+(define_predicate "cris_biap_mult_operand"
+ (and (match_code "mult")
+ (ior (and (match_test "register_operand (XEXP (op, 0), Pmode)")
+ (match_test "cris_scale_int_operand (XEXP (op, 1), Pmode)"))
+ (and (match_test "cris_scale_int_operand (XEXP (op, 0), Pmode)")
+ (match_test "register_operand (XEXP (op, 1), Pmode)")))))
+
+
+;; Operand predicates.
+
+;; This checks a part of an address, the one that is not a plain register
+;; for an addressing mode using BDAP.
+;; Allowed operands are either:
+;; a) a register
+;; b) a CONST operand (but not a symbol when generating PIC)
+;; c) a [r] or [r+] in SImode, or sign-extend from HI or QI.
+
+(define_predicate "cris_bdap_operand"
+ (ior (match_operand 0 "cris_bdap_const_operand")
+ (ior (match_operand:SI 0 "cris_simple_operand")
+ (match_operand:SI 0 "cris_bdap_sign_extend_operand"))))
+
+;; This is similar to cris_bdap_operand:
+;; It checks a part of an address, the one that is not a plain register
+;; for an addressing mode using BDAP or BIAP.
+;; Allowed operands are either:
+;; a) a register
+;; b) a CONST operand (but not a symbol when generating PIC)
+;; c) a mult of (1, 2 or 4) and a register
+;; d) a [r] or [r+] in SImode, or sign-extend from HI or QI. */
+
+(define_predicate "cris_bdap_biap_operand"
+ (ior (match_operand 0 "cris_bdap_operand")
+ (match_operand 0 "cris_biap_mult_operand")))
+
+;; Since a PIC symbol without a GOT entry is not a general_operand, we
+;; have to have a predicate that matches it. We use this in the expanded
+;; "movsi" anonymous pattern.
+;; FIXME: Can s/special_// when PR 20413 is fixed.
+
+(define_special_predicate "cris_general_operand_or_gotless_symbol"
+ (ior (match_operand 0 "general_operand")
+ (and (match_code "const, symbol_ref, label_ref, unspec")
+ (match_test "cris_gotless_symbol (op)"))))
+
+;; Since with -fPIC, not all symbols are valid PIC symbols or indeed
+;; general_operands, we have to have a predicate that matches it for the
+;; "movsi" expander.
+;; FIXME: Can s/special_// when PR 20413 is fixed.
+
+(define_special_predicate "cris_general_operand_or_symbol"
+ (ior (match_operand 0 "general_operand")
+ (and (match_code "const, symbol_ref, label_ref")
+ (match_test "cris_symbol (op)"))))
+
+;; Since a PLT symbol is not a general_operand, we have to have a
+;; predicate that matches it when we need it. We use this in the expanded
+;; "call" and "call_value" anonymous patterns.
+
+(define_predicate "cris_general_operand_or_plt_symbol"
+ (ior (match_operand 0 "general_operand")
+ (and (match_code "const")
+ (and (match_test "GET_CODE (XEXP (op, 0)) == UNSPEC")
+ (not (match_test "TARGET_AVOID_GOTPLT"))))))
+
+;; This matches a (MEM (general_operand)) or
+;; (MEM (cris_general_operand_or_symbol)). The second one isn't a valid
+;; memory_operand, so we need this predicate to recognize call
+;; destinations before we change them to a PLT operand (by wrapping in
+;; UNSPEC CRIS_UNSPEC_PLT).
+
+(define_predicate "cris_mem_call_operand"
+ (and (match_code "mem")
+ (ior (match_operand 0 "memory_operand")
+ (match_test "cris_general_operand_or_symbol (XEXP (op, 0),
+ Pmode)"))))