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-;; Constraint definitions for the Motorola MCore
-;; Copyright (C) 2011-2013 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/>.
-
-;; Register constraints.
-(define_register_constraint "a" "LRW_REGS"
- "@internal")
-
-(define_register_constraint "b" "ONLYR1_REGS"
- "@internal")
-
-(define_register_constraint "c" "C_REGS"
- "@internal")
-
-(define_register_constraint "x" "ALL_REGS"
- "@internal")
-
-;; Integer constraints.
-(define_constraint "I"
- "An integer in the range 0 to 127."
- (and (match_code "const_int")
- (match_test "IN_RANGE (ival, 0, 127)")))
-
-(define_constraint "J"
- "An integer in the range 1 to 32."
- (and (match_code "const_int")
- (match_test "IN_RANGE (ival, 1, 32)")))
-
-(define_constraint "K"
- "A shift operand, an integer in the range 0 to 31."
- (and (match_code "const_int")
- (match_test "IN_RANGE (ival, 0, 31)")))
-
-(define_constraint "L"
- "A negative arithmetic operand in the range -32 to -1."
- (and (match_code "const_int")
- (match_test "IN_RANGE (ival, -32, -1)")))
-
-(define_constraint "M"
- "A constant loadable by bgeni."
- (and (match_code "const_int")
- (match_test "exact_log2 (ival) >= 0 && exact_log2 (ival) <= 30")))
-
-(define_constraint "N"
- "A constant loadable by bmaskii, including -1."
- (and (match_code "const_int")
- (ior (match_test "ival == -1")
- (and (match_test "exact_log2 (ival + 1) >= 0")
- (match_test "exact_log2 (ival + 1) <= 30")))))
-
-(define_constraint "O"
- "A constant allowed by cmov with two constants +/- 1 of each other."
- (and (match_code "const_int")
- (ior (match_test "insn_const_int_ok_for_constraint (ival, CONSTRAINT_I)")
- (match_test "insn_const_int_ok_for_constraint (ival, CONSTRAINT_M)")
- (match_test "insn_const_int_ok_for_constraint (ival, CONSTRAINT_N)")
- (match_test "insn_const_int_ok_for_constraint (ival - 1, CONSTRAINT_M)")
- (match_test "insn_const_int_ok_for_constraint (ival + 1, CONSTRAINT_N)"))))
-
-(define_constraint "P"
- "A value that can be generated without an lrw instruction."
- (and (match_code "const_int")
- (match_test "mcore_const_ok_for_inline (ival)")))
-
-;; Floating-point constraints.
-(define_constraint "G"
- "@internal"
- (and (match_code "const_double")
- (match_test "insn_const_int_ok_for_constraint (hval, CONSTRAINT_I)")
- (match_test "insn_const_int_ok_for_constraint (ival, CONSTRAINT_I)")))
-
-;; Other constraints.
-(define_constraint "Q"
- "The integer constant one."
- (and (match_code "const_int")
- (match_test "ival == 1")))
-
-(define_constraint "R"
- "@internal"
- (and (match_code "mem")
- (match_test "GET_CODE (XEXP (op, 0)) == LABEL_REF")))
-
-(define_constraint "S"
- "An integer constant with 0, 1, or 2 bits clear."
- (and (match_code "const_int")
- (match_test "mcore_num_zeros (ival) <= 2")))
-
-(define_constraint "T"
- "An integer constant with 2 set bits."
- (and (match_code "const_int")
- (match_test "mcore_num_ones (ival) == 2")))
-
-(define_constraint "U"
- "The integer constant zero."
- (and (match_code "const_int")
- (match_test "ival == 0")))