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44d2fca6 | 1 | ;;- Predicate definitions for the pdp11 for GNU C compiler |
f1717362 | 2 | ;; Copyright (C) 1994-2016 Free Software Foundation, Inc. |
44d2fca6 | 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 | }) | |
7e8fe0a7 | 37 | |
5b6fed8f | 38 | ;; Accept anything general_operand accepts, except that registers must |
7e8fe0a7 | 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")) | |
4e6f14e4 | 45 | (match_operand 0 "general_operand"))) |
5b6fed8f | 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")) | |
4e6f14e4 | 54 | (match_operand 0 "nonimmediate_operand"))) |