Mercurial > hg > CbC > CbC_gcc
annotate gcc/config/m32c/prologue.md @ 131:84e7813d76e9
gcc-8.2
| author | mir3636 |
|---|---|
| date | Thu, 25 Oct 2018 07:37:49 +0900 |
| parents | 04ced10e8804 |
| children | 1830386684a0 |
| rev | line source |
|---|---|
| 0 | 1 ;; Machine Descriptions for R8C/M16C/M32C |
| 131 | 2 ;; Copyright (C) 2005-2018 Free Software Foundation, Inc. |
| 0 | 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 | |
| 9 ;; by the Free Software Foundation; either version 3, or (at your | |
| 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 | |
| 18 ;; along with GCC; see the file COPYING3. If not see | |
| 19 ;; <http://www.gnu.org/licenses/>. | |
| 20 | |
| 21 ;; Prologue and epilogue patterns | |
| 22 | |
| 23 (define_expand "prologue" | |
| 24 [(const_int 1)] | |
| 25 "" | |
| 26 "m32c_emit_prologue(); DONE;" | |
| 27 ) | |
| 28 | |
| 29 ; For the next two, operands[0] is the amount of stack space we want | |
| 30 ; to reserve. | |
| 31 | |
| 32 ; We assume dwarf2out will process each set in sequence. | |
| 33 (define_insn "prologue_enter_16" | |
| 34 [(set (mem:HI (plus:HI (reg:HI SP_REGNO) (const_int -2))) | |
| 35 (reg:HI FB_REGNO)) | |
| 36 (set (reg:HI FB_REGNO) | |
| 37 (plus:HI (reg:HI SP_REGNO) (const_int -2))) | |
| 38 (set (reg:HI SP_REGNO) | |
| 39 (minus:HI (reg:HI SP_REGNO) | |
| 40 (match_operand 0 "const_int_operand" "i"))) | |
| 41 ] | |
| 42 "TARGET_A16" | |
| 43 { | |
| 44 /* This is due to binutils bug gas/4659. */ | |
| 45 if (INTVAL (operands[0]) == 2) | |
| 46 return "enter\t#0"; | |
| 47 return "enter\t%0-2"; | |
| 48 } | |
| 49 [(set_attr "flags" "x")] | |
| 50 ) | |
| 51 | |
| 52 (define_insn "prologue_enter_24" | |
| 53 [(set (mem:SI (plus:PSI (reg:PSI SP_REGNO) (const_int -4))) | |
| 54 (reg:SI FB_REGNO)) | |
| 55 (set (reg:PSI FB_REGNO) | |
| 56 (plus:PSI (reg:PSI SP_REGNO) (const_int -4))) | |
| 57 (set (reg:PSI SP_REGNO) | |
| 58 (minus:PSI (reg:PSI SP_REGNO) | |
| 59 (match_operand 0 "const_int_operand" "i"))) | |
| 60 ] | |
| 61 "TARGET_A24" | |
| 62 { | |
| 63 /* This is due to binutils bug gas/4659. */ | |
| 64 if (INTVAL (operands[0]) == 4) | |
| 65 return "enter\t#0"; | |
| 66 return "enter\t%0-4"; | |
| 67 } | |
| 68 [(set_attr "flags" "x")] | |
| 69 ) | |
| 70 | |
| 71 ; Just a comment, for debugging the assembler output. | |
| 72 (define_insn "prologue_end" | |
| 73 [(unspec_volatile [(const_int 0)] UNS_PROLOGUE_END)] | |
| 74 "" | |
| 75 "; end of prologue" | |
| 76 [(set_attr "flags" "n")] | |
| 77 ) | |
| 78 | |
| 79 | |
| 80 | |
| 81 (define_expand "epilogue" | |
| 82 [(const_int 1)] | |
| 83 "" | |
| 84 "m32c_emit_epilogue(); DONE;" | |
| 85 ) | |
| 86 | |
| 87 (define_expand "eh_return" | |
| 88 [(match_operand:PSI 0 "" "")] | |
| 89 "" | |
| 111 | 90 "m32c_emit_eh_epilogue(operands[0]); |
| 91 emit_barrier (); | |
| 92 DONE;" | |
| 0 | 93 ) |
| 94 | |
| 95 (define_insn "eh_epilogue" | |
| 96 [(set (pc) | |
| 97 (unspec_volatile [(match_operand 0 "m32c_r1_operand" "") | |
| 98 (match_operand 1 "m32c_r0_operand" "") | |
| 111 | 99 ] UNS_EH_EPILOGUE)) |
| 100 (return)] | |
| 0 | 101 "" |
| 102 "jmp.a\t__m32c_eh_return" | |
| 103 [(set_attr "flags" "x")] | |
| 104 ) | |
| 105 | |
| 106 (define_insn "epilogue_exitd_16" | |
| 107 [(set (reg:HI SP_REGNO) | |
| 108 (plus:HI (reg:HI FB_REGNO) | |
| 109 (const_int 2))) | |
| 110 (set (reg:HI FB_REGNO) | |
| 111 (mem:HI (reg:HI FB_REGNO))) | |
| 112 (return) | |
| 113 ] | |
| 114 "TARGET_A16" | |
| 115 "exitd" | |
| 116 [(set_attr "flags" "x")] | |
| 117 ) | |
| 118 | |
| 119 (define_insn "epilogue_reit_16" | |
| 120 [(set (reg:HI SP_REGNO) | |
| 121 (plus:HI (reg:HI SP_REGNO) | |
| 122 (const_int 4))) | |
| 123 (return) | |
| 124 ] | |
| 125 "TARGET_A16" | |
| 126 "reit" | |
| 127 [(set_attr "flags" "x")] | |
| 128 ) | |
| 129 | |
| 130 (define_insn "epilogue_exitd_24" | |
| 131 [(set (reg:PSI SP_REGNO) | |
| 132 (plus:PSI (reg:PSI FB_REGNO) | |
| 133 (const_int 4))) | |
| 134 (set (reg:PSI FB_REGNO) | |
| 135 (mem:PSI (reg:PSI FB_REGNO))) | |
| 136 (return) | |
| 137 ] | |
| 138 "TARGET_A24" | |
| 139 "exitd" | |
| 140 [(set_attr "flags" "x")] | |
| 141 ) | |
| 142 | |
| 143 (define_insn "epilogue_reit_24" | |
| 144 [(set (reg:PSI SP_REGNO) | |
| 145 (plus:PSI (reg:PSI SP_REGNO) | |
| 146 (const_int 6))) | |
| 147 (return) | |
| 148 ] | |
| 149 "TARGET_A24" | |
| 150 "reit" | |
| 151 [(set_attr "flags" "x")] | |
| 152 ) | |
| 153 | |
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154 (define_insn "epilogue_freit" |
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155 [(unspec [(const_int 0)] UNS_FREIT) |
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156 (return) |
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157 ] |
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158 "" |
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159 "freit" |
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160 [(set_attr "flags" "x")] |
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161 ) |
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162 |
| 0 | 163 (define_insn "epilogue_rts" |
| 164 [(return) | |
| 165 ] | |
| 166 "" | |
| 167 "rts" | |
| 168 [(set_attr "flags" "x")] | |
| 169 ) | |
| 170 | |
| 171 (define_insn "epilogue_start" | |
| 172 [(unspec_volatile [(const_int 0)] UNS_EPILOGUE_START)] | |
| 173 "" | |
| 174 "; start of epilogue" | |
| 175 [(set_attr "flags" "n")] | |
| 176 ) | |
| 177 | |
| 178 | |
| 179 ; These are used by the prologue/epilogue code. | |
| 180 | |
| 181 (define_insn "pushm" | |
| 182 [(unspec [(match_operand 0 "const_int_operand" "i")] UNS_PUSHM)] | |
| 183 "" | |
| 184 "pushm\t%p0" | |
| 185 [(set_attr "flags" "n")] | |
| 186 ) | |
| 187 | |
| 188 (define_insn "popm" | |
| 189 [(unspec [(match_operand 0 "const_int_operand" "i")] UNS_POPM)] | |
| 190 "" | |
| 191 "popm\t%p0" | |
| 192 [(set_attr "flags" "n")] | |
| 193 ) | |
|
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194 |
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195 (define_insn "fset_b" |
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196 [(unspec [(const_int 0)] UNS_FSETB)] |
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197 "" |
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198 "fset\tB" |
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199 [(set_attr "flags" "n")] |
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200 ) |
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201 |