llint/LLIntSlowPaths.h

   1 /*
   2  * Copyright (C) 2011 Apple Inc. All rights reserved.
   3  *
   4  * Redistribution and use in source and binary forms, with or without
   5  * modification, are permitted provided that the following conditions
   6  * are met:
   7  * 1. Redistributions of source code must retain the above copyright
   8  *    notice, this list of conditions and the following disclaimer.
   9  * 2. Redistributions in binary form must reproduce the above copyright
  10  *    notice, this list of conditions and the following disclaimer in the
  11  *    documentation and/or other materials provided with the distribution.
  12  *
  13  * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
  14  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  15  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  16  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE INC. OR
  17  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
  18  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
  19  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
  20  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
  21  * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  22  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  23  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  24  */
  25
  26 #ifndef LLIntSlowPaths_h
  27 #define LLIntSlowPaths_h
  28
  29 #include <wtf/Platform.h>
  30 #include <wtf/StdLibExtras.h>
  31
  32 #if ENABLE(LLINT)
  33
  34 namespace JSC {
  35
  36 class ExecState;
  37 struct Instruction;
  38
  39 namespace LLInt {
  40
  41 #if USE(JSVALUE64)
  42 // According to C++ rules, a type used for the return signature of function with C linkage (i.e.
  43 // 'extern "C"') needs to be POD; hence putting any constructors into it could cause either compiler
  44 // warnings, or worse, a change in the ABI used to return these types.
  45 struct SlowPathReturnType {
  46     void* a;
  47     ExecState* b;
  48 };
  49
  50 inline SlowPathReturnType encodeResult(void* a, ExecState* b)
  51 {
  52     SlowPathReturnType result;
  53     result.a = a;
  54     result.b = b;
  55     return result;
  56 }
  57
  58 inline void decodeResult(SlowPathReturnType result, void*& a, ExecState*& b)
  59 {
  60     a = result.a;
  61     b = result.b;
  62 }
  63
  64 #else // USE(JSVALUE32_64)
  65 typedef int64_t SlowPathReturnType;
  66
  67 typedef union {
  68     struct {
  69         void* a;
  70         ExecState* b;
  71     } pair;
  72     int64_t i;
  73 } SlowPathReturnTypeEncoding;
  74
  75 inline SlowPathReturnType encodeResult(void* a, ExecState* b)
  76 {
  77     SlowPathReturnTypeEncoding u;
  78     u.pair.a = a;
  79     u.pair.b = b;
  80     return u.i;
  81 }
  82
  83 inline void decodeResult(SlowPathReturnType result, void*& a, ExecState*& b)
  84 {
  85     SlowPathReturnTypeEncoding u;
  86     u.i = result;
  87     a = u.pair.a;
  88     b = u.pair.b;
  89 }
  90 #endif // USE(JSVALUE32_64)
  91
  92 extern "C" SlowPathReturnType llint_trace_operand(ExecState*, Instruction*, int fromWhere, int operand);
  93 extern "C" SlowPathReturnType llint_trace_value(ExecState*, Instruction*, int fromWhere, int operand);
  94
  95 #define LLINT_SLOW_PATH_DECL(name) \
  96     extern "C" SlowPathReturnType llint_##name(ExecState* exec, Instruction* pc)
  97
  98 #define LLINT_SLOW_PATH_HIDDEN_DECL(name) \
  99     LLINT_SLOW_PATH_DECL(name) WTF_INTERNAL
 100
 101 LLINT_SLOW_PATH_HIDDEN_DECL(trace_prologue);
 102 LLINT_SLOW_PATH_HIDDEN_DECL(trace_prologue_function_for_call);
 103 LLINT_SLOW_PATH_HIDDEN_DECL(trace_prologue_function_for_construct);
 104 LLINT_SLOW_PATH_HIDDEN_DECL(trace_arityCheck_for_call);
 105 LLINT_SLOW_PATH_HIDDEN_DECL(trace_arityCheck_for_construct);
 106 LLINT_SLOW_PATH_HIDDEN_DECL(trace);
 107 LLINT_SLOW_PATH_HIDDEN_DECL(special_trace);
 108 LLINT_SLOW_PATH_HIDDEN_DECL(entry_osr);
 109 LLINT_SLOW_PATH_HIDDEN_DECL(entry_osr_function_for_call);
 110 LLINT_SLOW_PATH_HIDDEN_DECL(entry_osr_function_for_construct);
 111 LLINT_SLOW_PATH_HIDDEN_DECL(entry_osr_function_for_call_arityCheck);
 112 LLINT_SLOW_PATH_HIDDEN_DECL(entry_osr_function_for_construct_arityCheck);
 113 LLINT_SLOW_PATH_HIDDEN_DECL(loop_osr);
 114 LLINT_SLOW_PATH_HIDDEN_DECL(replace);
 115 LLINT_SLOW_PATH_HIDDEN_DECL(stack_check);
 116 LLINT_SLOW_PATH_HIDDEN_DECL(slow_path_call_arityCheck);
 117 LLINT_SLOW_PATH_HIDDEN_DECL(slow_path_construct_arityCheck);
 118 LLINT_SLOW_PATH_HIDDEN_DECL(slow_path_create_activation);
 119 LLINT_SLOW_PATH_HIDDEN_DECL(slow_path_create_arguments);
 120 LLINT_SLOW_PATH_HIDDEN_DECL(slow_path_create_this);
 121 LLINT_SLOW_PATH_HIDDEN_DECL(slow_path_convert_this);
 122 LLINT_SLOW_PATH_HIDDEN_DECL(slow_path_new_object);
 123 LLINT_SLOW_PATH_HIDDEN_DECL(slow_path_new_array);
 124 LLINT_SLOW_PATH_HIDDEN_DECL(slow_path_new_array_with_size);
 125 LLINT_SLOW_PATH_HIDDEN_DECL(slow_path_new_array_buffer);
 126 LLINT_SLOW_PATH_HIDDEN_DECL(slow_path_new_regexp);
 127 LLINT_SLOW_PATH_HIDDEN_DECL(slow_path_not);
 128 LLINT_SLOW_PATH_HIDDEN_DECL(slow_path_eq);
 129 LLINT_SLOW_PATH_HIDDEN_DECL(slow_path_neq);
 130 LLINT_SLOW_PATH_HIDDEN_DECL(slow_path_stricteq);
 131 LLINT_SLOW_PATH_HIDDEN_DECL(slow_path_nstricteq);
 132 LLINT_SLOW_PATH_HIDDEN_DECL(slow_path_less);
 133 LLINT_SLOW_PATH_HIDDEN_DECL(slow_path_lesseq);
 134 LLINT_SLOW_PATH_HIDDEN_DECL(slow_path_greater);
 135 LLINT_SLOW_PATH_HIDDEN_DECL(slow_path_greatereq);
 136 LLINT_SLOW_PATH_HIDDEN_DECL(slow_path_pre_inc);
 137 LLINT_SLOW_PATH_HIDDEN_DECL(slow_path_pre_dec);
 138 LLINT_SLOW_PATH_HIDDEN_DECL(slow_path_to_number);
 139 LLINT_SLOW_PATH_HIDDEN_DECL(slow_path_negate);
 140 LLINT_SLOW_PATH_HIDDEN_DECL(slow_path_add);
 141 LLINT_SLOW_PATH_HIDDEN_DECL(slow_path_mul);
 142 LLINT_SLOW_PATH_HIDDEN_DECL(slow_path_sub);
 143 LLINT_SLOW_PATH_HIDDEN_DECL(slow_path_div);
 144 LLINT_SLOW_PATH_HIDDEN_DECL(slow_path_mod);
 145 LLINT_SLOW_PATH_HIDDEN_DECL(slow_path_lshift);
 146 LLINT_SLOW_PATH_HIDDEN_DECL(slow_path_rshift);
 147 LLINT_SLOW_PATH_HIDDEN_DECL(slow_path_urshift);
 148 LLINT_SLOW_PATH_HIDDEN_DECL(slow_path_bitand);
 149 LLINT_SLOW_PATH_HIDDEN_DECL(slow_path_bitor);
 150 LLINT_SLOW_PATH_HIDDEN_DECL(slow_path_bitxor);
 151 LLINT_SLOW_PATH_HIDDEN_DECL(slow_path_check_has_instance);
 152 LLINT_SLOW_PATH_HIDDEN_DECL(slow_path_instanceof);
 153 LLINT_SLOW_PATH_HIDDEN_DECL(slow_path_typeof);
 154 LLINT_SLOW_PATH_HIDDEN_DECL(slow_path_is_object);
 155 LLINT_SLOW_PATH_HIDDEN_DECL(slow_path_is_function);
 156 LLINT_SLOW_PATH_HIDDEN_DECL(slow_path_in);
 157 LLINT_SLOW_PATH_HIDDEN_DECL(slow_path_resolve);
 158 LLINT_SLOW_PATH_HIDDEN_DECL(slow_path_put_to_base);
 159 LLINT_SLOW_PATH_HIDDEN_DECL(slow_path_resolve_base);
 160 LLINT_SLOW_PATH_HIDDEN_DECL(slow_path_resolve_with_base);
 161 LLINT_SLOW_PATH_HIDDEN_DECL(slow_path_resolve_with_this);
 162 LLINT_SLOW_PATH_HIDDEN_DECL(slow_path_init_global_const_check);
 163 LLINT_SLOW_PATH_HIDDEN_DECL(slow_path_get_by_id);
 164 LLINT_SLOW_PATH_HIDDEN_DECL(slow_path_get_arguments_length);
 165 LLINT_SLOW_PATH_HIDDEN_DECL(slow_path_put_by_id);
 166 LLINT_SLOW_PATH_HIDDEN_DECL(slow_path_del_by_id);
 167 LLINT_SLOW_PATH_HIDDEN_DECL(slow_path_get_by_val);
 168 LLINT_SLOW_PATH_HIDDEN_DECL(slow_path_get_argument_by_val);
 169 LLINT_SLOW_PATH_HIDDEN_DECL(slow_path_get_by_pname);
 170 LLINT_SLOW_PATH_HIDDEN_DECL(slow_path_put_by_val);
 171 LLINT_SLOW_PATH_HIDDEN_DECL(slow_path_del_by_val);
 172 LLINT_SLOW_PATH_HIDDEN_DECL(slow_path_put_by_index);
 173 LLINT_SLOW_PATH_HIDDEN_DECL(slow_path_put_getter_setter);
 174 LLINT_SLOW_PATH_HIDDEN_DECL(slow_path_jtrue);
 175 LLINT_SLOW_PATH_HIDDEN_DECL(slow_path_jfalse);
 176 LLINT_SLOW_PATH_HIDDEN_DECL(slow_path_jless);
 177 LLINT_SLOW_PATH_HIDDEN_DECL(slow_path_jnless);
 178 LLINT_SLOW_PATH_HIDDEN_DECL(slow_path_jgreater);
 179 LLINT_SLOW_PATH_HIDDEN_DECL(slow_path_jngreater);
 180 LLINT_SLOW_PATH_HIDDEN_DECL(slow_path_jlesseq);
 181 LLINT_SLOW_PATH_HIDDEN_DECL(slow_path_jnlesseq);
 182 LLINT_SLOW_PATH_HIDDEN_DECL(slow_path_jgreatereq);
 183 LLINT_SLOW_PATH_HIDDEN_DECL(slow_path_jngreatereq);
 184 LLINT_SLOW_PATH_HIDDEN_DECL(slow_path_switch_imm);
 185 LLINT_SLOW_PATH_HIDDEN_DECL(slow_path_switch_char);
 186 LLINT_SLOW_PATH_HIDDEN_DECL(slow_path_switch_string);
 187 LLINT_SLOW_PATH_HIDDEN_DECL(slow_path_new_func);
 188 LLINT_SLOW_PATH_HIDDEN_DECL(slow_path_new_func_exp);
 189 LLINT_SLOW_PATH_HIDDEN_DECL(slow_path_call);
 190 LLINT_SLOW_PATH_HIDDEN_DECL(slow_path_construct);
 191 LLINT_SLOW_PATH_HIDDEN_DECL(slow_path_call_varargs);
 192 LLINT_SLOW_PATH_HIDDEN_DECL(slow_path_call_eval);
 193 LLINT_SLOW_PATH_HIDDEN_DECL(slow_path_tear_off_activation);
 194 LLINT_SLOW_PATH_HIDDEN_DECL(slow_path_tear_off_arguments);
 195 LLINT_SLOW_PATH_HIDDEN_DECL(slow_path_strcat);
 196 LLINT_SLOW_PATH_HIDDEN_DECL(slow_path_to_primitive);
 197 LLINT_SLOW_PATH_HIDDEN_DECL(slow_path_get_pnames);
 198 LLINT_SLOW_PATH_HIDDEN_DECL(slow_path_next_pname);
 199 LLINT_SLOW_PATH_HIDDEN_DECL(slow_path_push_with_scope);
 200 LLINT_SLOW_PATH_HIDDEN_DECL(slow_path_pop_scope);
 201 LLINT_SLOW_PATH_HIDDEN_DECL(slow_path_push_name_scope);
 202 LLINT_SLOW_PATH_HIDDEN_DECL(slow_path_throw);
 203 LLINT_SLOW_PATH_HIDDEN_DECL(slow_path_throw_static_error);
 204 LLINT_SLOW_PATH_HIDDEN_DECL(slow_path_handle_watchdog_timer);
 205 LLINT_SLOW_PATH_HIDDEN_DECL(slow_path_debug);
 206 LLINT_SLOW_PATH_HIDDEN_DECL(slow_path_profile_will_call);
 207 LLINT_SLOW_PATH_HIDDEN_DECL(slow_path_profile_did_call);
 208 LLINT_SLOW_PATH_HIDDEN_DECL(throw_from_native_call);
 209
 210 } } // namespace JSC::LLInt
 211
 212 #endif // ENABLE(LLINT)
 213
 214 #endif // LLIntSlowPaths_h
 215