1;;- Predicate definitions for the pdp11 for GNU C compiler 2;; Copyright (C) 1994-2013 Free Software Foundation, Inc. 3;; Contributed by Michael K. Gschwind (mike@vlsivie.tuwien.ac.at). 4 5;; This file is part of GCC. 6 7;; GCC is free software; you can redistribute it and/or modify 8;; it under the terms of the GNU General Public License as published by 9;; the Free Software Foundation; either version 3, or (at your option) 10;; any later version. 11 12;; GCC is distributed in the hope that it will be useful, 13;; but WITHOUT ANY WARRANTY; without even the implied warranty of 14;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15;; GNU General Public License for more details. 16 17;; You should have received a copy of the GNU General Public License 18;; along with GCC; see the file COPYING3. If not see 19;; <http://www.gnu.org/licenses/>. 20 21;; Match CONST_DOUBLE zero for tstd/tstf. 22(define_predicate "register_or_const0_operand" 23 (ior (match_operand 0 "register_operand") 24 (match_test "op == CONST0_RTX (GET_MODE (op))"))) 25 26;; Accept integer arguments in the range -4..-2 and 2..4, which are the 27;; shift counts for which we unroll a shift. This matches the rule for 28;; the "O" constraint. 29(define_predicate "expand_shift_operand" 30 (match_code "const_int") 31{ 32 int sh; 33 34 sh = INTVAL (op); 35 return (abs (sh) > 1 && abs (sh) <= 4); 36}) 37 38;; Accept anything general_operand accepts, except that registers must 39;; be FPU registers. 40(define_predicate "float_operand" 41 (if_then_else (match_code "reg") 42 (ior 43 (match_test "REGNO_REG_CLASS (REGNO (op)) == LOAD_FPU_REGS") 44 (match_test "REGNO_REG_CLASS (REGNO (op)) == NO_LOAD_FPU_REGS")) 45 (match_test "general_operand (op, mode)"))) 46 47;; Accept anything nonimmediate_operand accepts, except that registers must 48;; be FPU registers. 49(define_predicate "float_nonimm_operand" 50 (if_then_else (match_code "reg") 51 (ior 52 (match_test "REGNO_REG_CLASS (REGNO (op)) == LOAD_FPU_REGS") 53 (match_test "REGNO_REG_CLASS (REGNO (op)) == NO_LOAD_FPU_REGS")) 54 (match_test "nonimmediate_operand (op, mode)"))) 55