1 ;; Constraint definitions for SPU
2 ;; Copyright (C) 2006-2015 Free Software Foundation, Inc.
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)
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
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/>.
19 ;; ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz
20 ;; GCC: ffffiiiiiiii x x x x xxxx xx
21 ;; SPU: xxxx xxx xxxx xxxx x xxx xx x xxx xx
22 ;; FREE: ffff i a a a a a aa aaa
25 ;; i - available for integer immediates
26 ;; f - available for floating point immediates
28 ;; For most immediate constraints we have 3 variations to deal with the
29 ;; fact const_int has no mode. One variation treats const_int as 32 bit,
30 ;; another treats it as 64 bit, and the third sign extends it to 128 bit.
32 (define_constraint "A"
33 "An immediate which can be loaded with the il/ila/ilh/ilhu instructions. const_int is treated as a 32-bit value."
34 (ior (and (match_code "const_int,const_double,const_vector")
35 (match_test "immediate_load_p (op, SImode)"))
36 (match_code "symbol_ref,label_ref,high,const")))
38 (define_constraint "B"
39 "An immediate for arithmetic instructions (e.g., ai, ceqi). const_int is treated as a 32-bit value."
40 (and (match_code "const_int,const_double,const_vector")
41 (match_test "arith_immediate_p (op, SImode, -0x200, 0x1ff)")))
43 (define_constraint "C"
44 "An immediate for and/xor/or instructions. const_int is treated as a 32-bit value."
45 (and (match_code "const_int,const_double,const_vector")
46 (match_test "logical_immediate_p (op, SImode)")))
48 (define_constraint "D"
49 "An immediate for iohl instruction. const_int is treated as a 32-bit value."
50 (and (match_code "const_int,const_double,const_vector")
51 (match_test "iohl_immediate_p (op, SImode)")))
53 (define_constraint "U"
54 "An immediate which can be loaded with the il/ila/ilh/ilhu instructions. const_int is sign extended to 128 bit."
55 (and (match_code "const_int,const_double,const_vector")
56 (match_test "immediate_load_p (op, TImode)")))
58 (define_constraint "W"
59 "An immediate for shift and rotate instructions. const_int is treated as a 32-bit value."
60 (and (match_code "const_int,const_double,const_vector")
61 (match_test "arith_immediate_p (op, SImode, -0x80000000ll, 0x7fffffffll)")))
63 (define_constraint "Y"
64 "An immediate for and/xor/or instructions. const_int is sign extended as a 128 bit."
65 (and (match_code "const_int,const_double,const_vector")
66 (match_test "logical_immediate_p (op, TImode)")))
68 (define_constraint "Z"
69 "An immediate for iohl instruction. const_int is sign extended to 128 bit."
70 (and (match_code "const_int,const_double,const_vector")
71 (match_test "iohl_immediate_p (op, TImode)")))
73 (define_constraint "a"
74 "An immediate which can be loaded with the il/ila/ilh/ilhu instructions. const_int is treated as a 64-bit value."
75 (and (match_code "const_int")
76 (match_test "immediate_load_p (op, DImode)")))
78 (define_constraint "c"
79 "An immediate for and/xor/or instructions. const_int is treated as a 64-bit value."
80 (and (match_code "const_int")
81 (match_test "logical_immediate_p (op, DImode)")))
83 (define_constraint "d"
84 "An immediate for iohl instruction. const_int is treated as a 64-bit value."
85 (and (match_code "const_int")
86 (match_test "iohl_immediate_p (op, DImode)")))
88 (define_constraint "f"
89 "An immediate which can be loaded with fsmbi."
90 (and (match_code "const_int,const_double,const_vector")
91 (match_test "fsmbi_const_p (op)")))
93 (define_constraint "j"
94 "An immediate which can be loaded with one of the cbd/chd/cwd/cdd instructions. const_int is treated as a 32-bit value."
95 (and (match_code "const_int,const_double,const_vector")
96 (match_test "cpat_const_p (op, SImode)")))
98 (define_constraint "k"
99 "An immediate which can be loaded with one of the cbd/chd/cwd/cdd instructions. const_int is treated as a 64-bit value."
100 (and (match_code "const_int,const_double,const_vector")
101 (match_test "cpat_const_p (op, DImode)")))
103 (define_constraint "l"
104 "An immediate which can be loaded with one of the cbd/chd/cwd/cdd instructions."
105 (and (match_code "const_double,const_vector")
106 (match_test "cpat_const_p (op, TImode)")))
109 ;; Integer constraints
111 (define_constraint "I"
112 "A constant in the range [-64, 63] for shift/rotate instructions."
113 (and (match_code "const_int")
114 (match_test "ival >= -0x40 && ival <= 0x3f")))
116 (define_constraint "J"
117 "An unsigned 7-bit constant for conversion/nop/channel instructions."
118 (and (match_code "const_int")
119 (match_test "ival >= 0 && ival <= 0x7f")))
121 (define_constraint "K"
122 "A signed 10-bit constant for most arithmetic instructions."
123 (and (match_code "const_int")
124 (match_test "ival >= -0x200 && ival <= 0x1ff")))
126 (define_constraint "M"
127 "A signed 16-bit immediate for @code{stop}."
128 (and (match_code "const_int")
129 (match_test "ival >= -0x8000ll && ival <= 0x7fffll")))
131 (define_constraint "N"
132 "An unsigned 16-bit constant for @code{iohl} and @code{fsmbi}."
133 (and (match_code "const_int")
134 (match_test "ival >= 0 && ival <= 0xffff")))
136 (define_constraint "O"
137 "An unsigned 7-bit constant whose 3 least significant bits are 0."
138 (and (match_code "const_int")
139 (match_test "(ival & 7) == 0")))
141 (define_constraint "P"
142 "An unsigned 3-bit constant for 16-byte rotates and shifts"
143 (and (match_code "const_int")
144 (match_test "ival >= 0 && ival <= 7")))
147 ;; Memory constraints
149 (define_memory_constraint "R"
150 "Call operand, reg, for indirect calls"
151 (and (match_code "mem")
152 (match_test "GET_CODE(XEXP(op, 0)) == REG")))
154 (define_memory_constraint "S"
155 "Call operand, symbol, for relative calls."
156 (and (match_code "mem")
157 (match_test "!TARGET_LARGE_MEM
158 && ((GET_CODE (XEXP (op, 0)) == SYMBOL_REF
159 || GET_CODE (XEXP (op, 0)) == LABEL_REF))")))
161 (define_memory_constraint "T"
162 "Call operand, const_int, for absolute calls."
163 (and (match_code "mem")
164 (match_test "GET_CODE (XEXP (op, 0)) == CONST_INT
165 && INTVAL (XEXP (op, 0)) >= 0
166 && INTVAL (XEXP (op, 0)) <= 0x3ffff")))
169 ;; Floating-point constant constraints.
171 (define_constraint "v"
172 "Floating point power of 2 with exponent in [0..127]"
173 (and (match_code "const_double,const_vector")
174 (match_test "exp2_immediate_p (op, VOIDmode, 0, 127)")))
176 (define_constraint "w"
177 "Floating point power of 2 with exponent in [-126..0]"
178 (and (match_code "const_double,const_vector")
179 (match_test "exp2_immediate_p (op, VOIDmode, -126, 0)")))