xref: /netbsd-src/external/gpl3/gcc.old/dist/gcc/config/spu/predicates.md (revision c0a68be459da21030695f60d10265c2fc49758f8)
1;; Predicate definitions for CELL SPU
2;; Copyright (C) 2006-2019 Free Software Foundation, Inc.
3;;
4;; This file is free software; you can redistribute it and/or modify it under
5;; the terms of the GNU General Public License as published by the Free
6;; Software Foundation; either version 3 of the License, or (at your option)
7;; any later version.
8
9;; This file is distributed in the hope that it will be useful, but WITHOUT
10;; ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11;; FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
12;; for more details.
13
14;; You should have received a copy of the GNU General Public License
15;; along with GCC; see the file COPYING3.  If not see
16;; <http://www.gnu.org/licenses/>.
17
18;; Return 1 if operand is constant zero of its mode
19(define_predicate "const_zero_operand"
20  (and (match_code "const_int,const,const_double,const_vector")
21       (match_test "op == CONST0_RTX (mode)")))
22
23(define_predicate "const_one_operand"
24  (and (match_code "const_int,const,const_double,const_vector")
25       (match_test "op == CONST1_RTX (mode)")))
26
27(define_predicate "spu_reg_operand"
28  (and (match_operand 0 "register_operand")
29       (ior (not (match_code "subreg"))
30            (match_test "valid_subreg (op)"))))
31
32(define_predicate "spu_nonimm_operand"
33  (and (match_operand 0 "nonimmediate_operand")
34       (ior (not (match_code "subreg"))
35            (match_test "valid_subreg (op)"))))
36
37(define_predicate "spu_nonmem_operand"
38  (and (match_operand 0 "nonmemory_operand")
39       (ior (not (match_code "subreg"))
40            (match_test "valid_subreg (op)"))))
41
42(define_predicate "spu_mov_operand"
43  (ior (match_operand 0 "memory_operand")
44       (match_operand 0 "spu_nonmem_operand")))
45
46(define_predicate "spu_dest_operand"
47  (ior (match_operand 0 "memory_operand")
48       (match_operand 0 "spu_reg_operand")))
49
50(define_predicate "call_operand"
51  (and (match_code "mem")
52       (match_test "(!TARGET_LARGE_MEM && satisfies_constraint_S (op))
53		    || (satisfies_constraint_R (op)
54			&& REGNO (XEXP (op, 0)) != FRAME_POINTER_REGNUM
55			&& REGNO (XEXP (op, 0)) != ARG_POINTER_REGNUM
56			&& (REGNO (XEXP (op, 0)) < FIRST_PSEUDO_REGISTER
57			    || REGNO (XEXP (op, 0)) > LAST_VIRTUAL_REGISTER))")))
58
59(define_predicate "vec_imm_operand"
60  (and (match_code "const_int,const_double,const_vector")
61       (match_test "spu_legitimate_constant_p (mode, op)")))
62
63(define_predicate "spu_arith_operand"
64  (match_code "reg,subreg,const_int,const_vector")
65  {
66    if (spu_reg_operand (op, mode))
67      return 1;
68    if (GET_CODE (op) == CONST_INT || GET_CODE (op) == CONST_VECTOR)
69      return arith_immediate_p (op, mode, -0x200, 0x1ff);
70    return 0;
71  })
72
73(define_predicate "spu_logical_operand"
74  (match_code "reg,subreg,const_int,const_double,const_vector")
75  {
76    if (spu_reg_operand (op, mode))
77      return 1;
78    if (GET_CODE (op) == CONST_INT || GET_CODE (op) == CONST_DOUBLE
79	|| GET_CODE (op) == CONST_VECTOR)
80      return logical_immediate_p (op, mode);
81    return 0;
82  })
83
84(define_predicate "spu_ior_operand"
85  (match_code "reg,subreg,const_int,const_double,const_vector")
86  {
87    if (spu_reg_operand (op, mode))
88      return 1;
89    if (GET_CODE (op) == CONST_INT || GET_CODE (op) == CONST_DOUBLE
90	|| GET_CODE (op) == CONST_VECTOR)
91      return logical_immediate_p (op, mode)
92	     || iohl_immediate_p (op, mode);
93    return 0;
94  })
95
96(define_predicate "imm_K_operand"
97  (and (match_code "const_int")
98       (match_test "arith_immediate_p (op, mode, -0x200, 0x1ff)")))
99
100;; Return 1 if OP is a comparison operation that is valid for a branch insn.
101;; We only check the opcode against the mode of the register value here.
102(define_predicate "branch_comparison_operator"
103  (and (match_code "eq,ne")
104       (ior (match_test "GET_MODE (XEXP (op, 0)) == HImode")
105	    (match_test "GET_MODE (XEXP (op, 0)) == SImode"))))
106
107(define_predicate "spu_inv_exp2_operand"
108  (and (match_code "const_double,const_vector")
109       (and (match_operand 0 "immediate_operand")
110	    (match_test "exp2_immediate_p (op, mode, -126, 0)"))))
111
112(define_predicate "spu_exp2_operand"
113  (and (match_code "const_double,const_vector")
114       (and (match_operand 0 "immediate_operand")
115	    (match_test "exp2_immediate_p (op, mode, 0, 127)"))))
116
117(define_predicate "shiftrt_operator"
118  (match_code "lshiftrt,ashiftrt"))
119
120(define_predicate "extend_operator"
121  (match_code "sign_extend,zero_extend"))
122
123