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85c84d5c | 1 | ;; Machine Descriptions for R8C/M16C/M32C |
f1717362 | 2 | ;; Copyright (C) 2005-2016 Free Software Foundation, Inc. |
85c84d5c | 3 | ;; Contributed by Red Hat. |
4 | ;; | |
5 | ;; This file is part of GCC. | |
6 | ;; | |
7 | ;; GCC is free software; you can redistribute it and/or modify it | |
8 | ;; under the terms of the GNU General Public License as published | |
038d1e19 | 9 | ;; by the Free Software Foundation; either version 3, or (at your |
85c84d5c | 10 | ;; option) any later version. |
11 | ;; | |
12 | ;; GCC is distributed in the hope that it will be useful, but WITHOUT | |
13 | ;; ANY WARRANTY; without even the implied warranty of MERCHANTABILITY | |
14 | ;; or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public | |
15 | ;; License for more details. | |
16 | ;; | |
17 | ;; You should have received a copy of the GNU General Public License | |
038d1e19 | 18 | ;; along with GCC; see the file COPYING3. If not see |
19 | ;; <http://www.gnu.org/licenses/>. | |
85c84d5c | 20 | |
21 | ;; jump, conditionals, calls, etc | |
22 | ||
23 | (define_insn "indirect_jump_16" | |
24 | [(set (pc) | |
25 | (match_operand:HI 0 "register_operand" "Rhi"))] | |
26 | "TARGET_A16" | |
27 | ; "jmpi.a\t%0" | |
c910419d | 28 | ; no 16-bit jmpi in r8c |
85c84d5c | 29 | "push.b #0 | push.w\t%0 | rts" |
992bd98c | 30 | [(set_attr "flags" "x")] |
85c84d5c | 31 | ) |
32 | ||
33 | (define_insn "indirect_jump_24" | |
34 | [(set (pc) | |
35 | (match_operand:PSI 0 "register_operand" "Rpi"))] | |
36 | "TARGET_A24" | |
37 | "jmpi.a\t%0" | |
992bd98c | 38 | [(set_attr "flags" "n")] |
85c84d5c | 39 | ) |
40 | ||
41 | (define_expand "indirect_jump" | |
42 | [(match_operand 0 "register_operand" "")] | |
43 | "" | |
44 | "if (TARGET_A16) | |
45 | emit_jump_insn (gen_indirect_jump_16(operands[0])); | |
46 | else | |
47 | emit_jump_insn (gen_indirect_jump_24(operands[0])); | |
48 | DONE;" | |
49 | ) | |
50 | ||
51 | ; We can replace this with jmp.s when gas supports relaxing. m32c | |
52 | ; opcodes are too complicated to try to compute their sizes here, it's | |
53 | ; far easier (and more reliable) to let gas worry about it. | |
54 | (define_insn "jump" | |
55 | [(set (pc) | |
56 | (label_ref (match_operand 0 "" "")))] | |
57 | "" | |
58 | "jmp.a\t%l0" | |
992bd98c | 59 | [(set_attr "flags" "n")] |
85c84d5c | 60 | ) |
61 | ||
c910419d | 62 | ; No 16-bit indirect calls on r8c/m16c. */ |
85c84d5c | 63 | (define_insn "call" |
64 | [(call (match_operand:QI 0 "memory_operand" "Si,SaSb,?Rmm") | |
65 | (match_operand 1 "" "")) | |
66 | (use (match_operand 2 "immediate_operand" ""))] | |
67 | "" | |
68 | "* | |
69 | switch (which_alternative) { | |
2efce110 | 70 | case 0: |
71 | { | |
72 | HOST_WIDE_INT func_vect_num = | |
73 | current_function_special_page_vector(XEXP (operands[0], 0)); | |
74 | if (func_vect_num) | |
75 | { | |
76 | operands[3] = gen_rtx_CONST_INT (VOIDmode, func_vect_num); | |
77 | return \"jsrs\t%3\"; | |
78 | } | |
79 | else | |
80 | return \"jsr.a\t%0\"; | |
81 | } | |
85c84d5c | 82 | case 1: return TARGET_A16 ? \"push.w %a0 | jsr.a\tm32c_jsri16\" : \"jsri.a\t%a0\"; |
83 | case 2: return \"jsri.a\t%a0\"; | |
1675aa0a | 84 | default: gcc_unreachable (); |
85c84d5c | 85 | }" |
992bd98c | 86 | [(set_attr "flags" "x")] |
85c84d5c | 87 | ) |
88 | ||
89 | (define_insn "call_value" | |
90 | [(set (match_operand 0 "m32c_return_operand" "=RdiRmmRpa,RdiRmmRpa,RdiRmmRpa") | |
91 | (call (match_operand:QI 1 "memory_operand" "Si,SaSb,?Rmm") | |
92 | (match_operand 2 "" ""))) | |
93 | (use (match_operand 3 "immediate_operand" ""))] | |
94 | "" | |
95 | "* | |
96 | switch (which_alternative) { | |
2efce110 | 97 | case 0: |
98 | { | |
99 | HOST_WIDE_INT func_vect_num = | |
100 | current_function_special_page_vector(XEXP (operands[1], 0)); | |
101 | if (func_vect_num) | |
102 | { | |
103 | operands[4] = gen_rtx_CONST_INT (VOIDmode, func_vect_num); | |
104 | return \"jsrs\t%4\"; | |
105 | } | |
106 | else | |
107 | return \"jsr.a\t%1\"; | |
108 | } | |
85c84d5c | 109 | case 1: return TARGET_A16 ? \"push.w %a1 | jsr.a\tm32c_jsri16\" : \"jsri.a\t%a1\"; |
110 | case 2: return \"jsri.a\t%a1\"; | |
1675aa0a | 111 | default: gcc_unreachable (); |
85c84d5c | 112 | }" |
992bd98c | 113 | [(set_attr "flags" "x,x,x")] |
85c84d5c | 114 | ) |
8e9e5256 | 115 | |
116 | (define_expand "untyped_call" | |
117 | [(parallel [(call (match_operand 0 "" "") | |
118 | (const_int 0)) | |
119 | (match_operand 1 "" "") | |
120 | (match_operand 2 "" "")])] | |
121 | "" | |
122 | " | |
123 | { | |
124 | int i; | |
125 | ||
126 | emit_call_insn (gen_call (operands[0], const0_rtx, const0_rtx)); | |
127 | ||
128 | for (i = 0; i < XVECLEN (operands[2], 0); i++) | |
129 | { | |
130 | rtx set = XVECEXP (operands[2], 0, i); | |
131 | emit_move_insn (SET_DEST (set), SET_SRC (set)); | |
132 | } | |
133 | DONE; | |
134 | }") |