1;; Machine Descriptions for R8C/M16C/M32C 2;; Copyright (C) 2005-2020 Free Software Foundation, Inc. 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;; 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" 28 ; no 16-bit jmpi in r8c 29 "push.b #0 | push.w\t%0 | rts" 30 [(set_attr "flags" "x")] 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" 38 [(set_attr "flags" "n")] 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" 59 [(set_attr "flags" "n")] 60) 61 62; No 16-bit indirect calls on r8c/m16c. */ 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 "* 69switch (which_alternative) { 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 } 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\"; 84 default: gcc_unreachable (); 85}" 86 [(set_attr "flags" "x")] 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 "* 96switch (which_alternative) { 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 } 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\"; 111 default: gcc_unreachable (); 112}" 113 [(set_attr "flags" "x,x,x")] 114 ) 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}") 135