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09cae750 | 1 | ;; PIC codegen for RISC-V for GNU compiler. |
83ffe9cd | 2 | ;; Copyright (C) 2011-2023 Free Software Foundation, Inc. |
09cae750 PD |
3 | ;; Contributed by Andrew Waterman (andrew@sifive.com). |
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 | ||
22 | ;; Simplify PIC loads to static variables. | |
23 | ;; These should go away once we figure out how to emit auipc discretely. | |
24 | ||
efc60124 | 25 | (define_insn "*local_pic_load<mode>" |
09cae750 | 26 | [(set (match_operand:ANYI 0 "register_operand" "=r") |
efc60124 JW |
27 | (mem:ANYI (match_operand 1 "absolute_symbolic_operand" "")))] |
28 | "USE_LOAD_ADDRESS_MACRO (operands[1])" | |
29 | "<default_load>\t%0,%1" | |
c85db606 EL |
30 | [(set_attr "type" "load") |
31 | (set (attr "length") (const_int 8))]) | |
efc60124 | 32 | |
7ef00402 | 33 | (define_insn "*local_pic_load_s<SUBX:mode>" |
efc60124 JW |
34 | [(set (match_operand:SUPERQI 0 "register_operand" "=r") |
35 | (sign_extend:SUPERQI (mem:SUBX (match_operand 1 "absolute_symbolic_operand" ""))))] | |
09cae750 | 36 | "USE_LOAD_ADDRESS_MACRO (operands[1])" |
efc60124 | 37 | "<SUBX:load>\t%0,%1" |
c85db606 EL |
38 | [(set_attr "type" "load") |
39 | (set (attr "length") (const_int 8))]) | |
09cae750 | 40 | |
7ef00402 | 41 | (define_insn "*local_pic_load_u<SUBX:mode>" |
efc60124 JW |
42 | [(set (match_operand:SUPERQI 0 "register_operand" "=r") |
43 | (zero_extend:SUPERQI (mem:SUBX (match_operand 1 "absolute_symbolic_operand" ""))))] | |
0b661358 | 44 | "USE_LOAD_ADDRESS_MACRO (operands[1])" |
efc60124 | 45 | "<SUBX:load>u\t%0,%1" |
c85db606 EL |
46 | [(set_attr "type" "load") |
47 | (set (attr "length") (const_int 8))]) | |
0b661358 | 48 | |
3709ca09 | 49 | ;; We can support ANYLSF loads into X register if there is no double support |
efc60124 JW |
50 | ;; or if the target is 64-bit. |
51 | ||
3709ca09 LD |
52 | (define_insn "*local_pic_load<ANYLSF:mode>" |
53 | [(set (match_operand:ANYLSF 0 "register_operand" "=f,*r") | |
54 | (mem:ANYLSF (match_operand 1 "absolute_symbolic_operand" ""))) | |
efc60124 JW |
55 | (clobber (match_scratch:P 2 "=r,X"))] |
56 | "TARGET_HARD_FLOAT && USE_LOAD_ADDRESS_MACRO (operands[1]) | |
57 | && (!TARGET_DOUBLE_FLOAT || TARGET_64BIT)" | |
58 | "@ | |
3709ca09 | 59 | <ANYLSF:load>\t%0,%1,%2 |
efc60124 | 60 | <softload>\t%0,%1" |
c85db606 EL |
61 | [(set_attr "type" "fpload") |
62 | (set (attr "length") (const_int 8))]) | |
09cae750 | 63 | |
efc60124 JW |
64 | ;; ??? For a 32-bit target with double float, a DF load into a X reg isn't |
65 | ;; supported. ld is not valid in that case. Punt for now. Maybe add a split | |
66 | ;; for this later. | |
67 | ||
3709ca09 LD |
68 | (define_insn "*local_pic_load_32d<ANYLSF:mode>" |
69 | [(set (match_operand:ANYLSF 0 "register_operand" "=f") | |
70 | (mem:ANYLSF (match_operand 1 "absolute_symbolic_operand" ""))) | |
efc60124 JW |
71 | (clobber (match_scratch:P 2 "=r"))] |
72 | "TARGET_HARD_FLOAT && USE_LOAD_ADDRESS_MACRO (operands[1]) | |
73 | && (TARGET_DOUBLE_FLOAT && !TARGET_64BIT)" | |
3709ca09 | 74 | "<ANYLSF:load>\t%0,%1,%2" |
c85db606 EL |
75 | [(set_attr "type" "fpload") |
76 | (set (attr "length") (const_int 8))]) | |
09cae750 | 77 | |
efc60124 JW |
78 | (define_insn "*local_pic_load_sf<mode>" |
79 | [(set (match_operand:SOFTF 0 "register_operand" "=r") | |
80 | (mem:SOFTF (match_operand 1 "absolute_symbolic_operand" "")))] | |
81 | "!TARGET_HARD_FLOAT && USE_LOAD_ADDRESS_MACRO (operands[1])" | |
82 | "<softload>\t%0,%1" | |
c85db606 EL |
83 | [(set_attr "type" "fpload") |
84 | (set (attr "length") (const_int 8))]) | |
09cae750 | 85 | |
efc60124 JW |
86 | ;; Simplify PIC stores to static variables. |
87 | ;; These should go away once we figure out how to emit auipc discretely. | |
09cae750 | 88 | |
efc60124 | 89 | (define_insn "*local_pic_store<ANYI:mode>" |
09cae750 PD |
90 | [(set (mem:ANYI (match_operand 0 "absolute_symbolic_operand" "")) |
91 | (match_operand:ANYI 1 "reg_or_0_operand" "rJ")) | |
efc60124 JW |
92 | (clobber (match_scratch:P 2 "=&r"))] |
93 | "USE_LOAD_ADDRESS_MACRO (operands[0])" | |
94 | "<ANYI:store>\t%z1,%0,%2" | |
c85db606 EL |
95 | [(set_attr "type" "store") |
96 | (set (attr "length") (const_int 8))]) | |
09cae750 | 97 | |
3709ca09 LD |
98 | (define_insn "*local_pic_store<ANYLSF:mode>" |
99 | [(set (mem:ANYLSF (match_operand 0 "absolute_symbolic_operand" "")) | |
100 | (match_operand:ANYLSF 1 "register_operand" "f,*r")) | |
efc60124 JW |
101 | (clobber (match_scratch:P 2 "=r,&r"))] |
102 | "TARGET_HARD_FLOAT && USE_LOAD_ADDRESS_MACRO (operands[0]) | |
103 | && (!TARGET_DOUBLE_FLOAT || TARGET_64BIT)" | |
104 | "@ | |
3709ca09 | 105 | <ANYLSF:store>\t%1,%0,%2 |
efc60124 | 106 | <softstore>\t%1,%0,%2" |
c85db606 EL |
107 | [(set_attr "type" "fpstore") |
108 | (set (attr "length") (const_int 8))]) | |
09cae750 | 109 | |
efc60124 JW |
110 | ;; ??? For a 32-bit target with double float, a DF store from a X reg isn't |
111 | ;; supported. sd is not valid in that case. Punt for now. Maybe add a split | |
112 | ;; for this later. | |
113 | ||
3709ca09 LD |
114 | (define_insn "*local_pic_store_32d<ANYLSF:mode>" |
115 | [(set (match_operand:ANYLSF 0 "register_operand" "=f") | |
116 | (mem:ANYLSF (match_operand 1 "absolute_symbolic_operand" ""))) | |
efc60124 JW |
117 | (clobber (match_scratch:P 2 "=r"))] |
118 | "TARGET_HARD_FLOAT && USE_LOAD_ADDRESS_MACRO (operands[1]) | |
119 | && (TARGET_DOUBLE_FLOAT && !TARGET_64BIT)" | |
3709ca09 | 120 | "<ANYLSF:store>\t%1,%0,%2" |
c85db606 EL |
121 | [(set_attr "type" "fpstore") |
122 | (set (attr "length") (const_int 8))]) | |
efc60124 JW |
123 | |
124 | (define_insn "*local_pic_store_sf<SOFTF:mode>" | |
125 | [(set (mem:SOFTF (match_operand 0 "absolute_symbolic_operand" "")) | |
126 | (match_operand:SOFTF 1 "register_operand" "r")) | |
127 | (clobber (match_scratch:P 2 "=&r"))] | |
128 | "!TARGET_HARD_FLOAT && USE_LOAD_ADDRESS_MACRO (operands[0])" | |
129 | "<softstore>\t%1,%0,%2" | |
c85db606 EL |
130 | [(set_attr "type" "fpstore") |
131 | (set (attr "length") (const_int 8))]) |