1 /* 2 +----------------------------------------------------------------------+ 3 | Zend JIT | 4 +----------------------------------------------------------------------+ 5 | Copyright (c) The PHP Group | 6 +----------------------------------------------------------------------+ 7 | This source file is subject to version 3.01 of the PHP license, | 8 | that is bundled with this package in the file LICENSE, and is | 9 | available through the world-wide-web at the following url: | 10 | http://www.php.net/license/3_01.txt | 11 | If you did not receive a copy of the PHP license and are unable to | 12 | obtain it through the world-wide-web, please send a note to | 13 | license@php.net so we can mail you a copy immediately. | 14 +----------------------------------------------------------------------+ 15 | Authors: Dmitry Stogov <dmitry@php.net> | 16 +----------------------------------------------------------------------+ 17 */ 18 19 #ifndef HAVE_JIT_H 20 #define HAVE_JIT_H 21 22 #define ZEND_JIT_LEVEL_NONE 0 /* no JIT */ 23 #define ZEND_JIT_LEVEL_MINIMAL 1 /* minimal JIT (subroutine threading) */ 24 #define ZEND_JIT_LEVEL_INLINE 2 /* selective inline threading */ 25 #define ZEND_JIT_LEVEL_OPT_FUNC 3 /* optimized JIT based on Type-Inference */ 26 #define ZEND_JIT_LEVEL_OPT_FUNCS 4 /* optimized JIT based on Type-Inference and call-tree */ 27 #define ZEND_JIT_LEVEL_OPT_SCRIPT 5 /* optimized JIT based on Type-Inference and inner-procedure analysis */ 28 29 #define ZEND_JIT_ON_SCRIPT_LOAD 0 30 #define ZEND_JIT_ON_FIRST_EXEC 1 31 #define ZEND_JIT_ON_PROF_REQUEST 2 /* compile the most frequently caled on first request functions */ 32 #define ZEND_JIT_ON_HOT_COUNTERS 3 /* compile functions after N calls or loop iterations */ 33 #define ZEND_JIT_ON_DOC_COMMENT 4 /* compile functions with "@jit" tag in doc-comments */ 34 #define ZEND_JIT_ON_HOT_TRACE 5 /* trace functions after N calls or loop iterations */ 35 36 #define ZEND_JIT_REG_ALLOC_LOCAL (1<<0) /* local linear scan register allocation */ 37 #define ZEND_JIT_REG_ALLOC_GLOBAL (1<<1) /* global linear scan register allocation */ 38 #define ZEND_JIT_CPU_AVX (1<<2) /* use AVX instructions, if available */ 39 40 #define ZEND_JIT_DEFAULT_BUFFER_SIZE "0" 41 42 #define ZEND_JIT_COUNTER_INIT 32531 43 44 #define ZEND_JIT_DEBUG_ASM (1<<0) 45 #define ZEND_JIT_DEBUG_SSA (1<<1) 46 #define ZEND_JIT_DEBUG_REG_ALLOC (1<<2) 47 #define ZEND_JIT_DEBUG_ASM_STUBS (1<<3) 48 49 #define ZEND_JIT_DEBUG_PERF (1<<4) 50 #define ZEND_JIT_DEBUG_PERF_DUMP (1<<5) 51 #define ZEND_JIT_DEBUG_OPROFILE (1<<6) 52 #define ZEND_JIT_DEBUG_VTUNE (1<<7) 53 54 #define ZEND_JIT_DEBUG_GDB (1<<8) 55 #define ZEND_JIT_DEBUG_SIZE (1<<9) 56 57 #define ZEND_JIT_DEBUG_TRACE_START (1<<12) 58 #define ZEND_JIT_DEBUG_TRACE_STOP (1<<13) 59 #define ZEND_JIT_DEBUG_TRACE_COMPILED (1<<14) 60 #define ZEND_JIT_DEBUG_TRACE_EXIT (1<<15) 61 #define ZEND_JIT_DEBUG_TRACE_ABORT (1<<16) 62 #define ZEND_JIT_DEBUG_TRACE_BLACKLIST (1<<17) 63 #define ZEND_JIT_DEBUG_TRACE_BYTECODE (1<<18) 64 #define ZEND_JIT_DEBUG_TRACE_TSSA (1<<19) 65 #define ZEND_JIT_DEBUG_TRACE_EXIT_INFO (1<<20) 66 67 #define ZEND_JIT_DEBUG_PERSISTENT 0x1f0 /* profile and debbuger flags can't be changed at run-time */ 68 69 #define ZEND_JIT_TRACE_MAX_LENGTH 1024 /* max length of single trace */ 70 #define ZEND_JIT_TRACE_MAX_EXITS 512 /* max number of side exits per trace */ 71 72 #define ZEND_JIT_TRACE_MAX_FUNCS 30 /* max number of different functions in a single trace */ 73 #define ZEND_JIT_TRACE_MAX_CALL_DEPTH 10 /* max depth of inlined calls */ 74 #define ZEND_JIT_TRACE_MAX_RET_DEPTH 4 /* max depth of inlined returns */ 75 #define ZEND_JIT_TRACE_MAX_LOOPS_UNROLL 10 /* max number of unrolled loops */ 76 77 #define ZEND_JIT_TRACE_BAD_ROOT_SLOTS 64 /* number of slots in bad root trace cache */ 78 79 typedef struct _zend_jit_trace_rec zend_jit_trace_rec; 80 typedef struct _zend_jit_trace_stack_frame zend_jit_trace_stack_frame; 81 typedef struct _sym_node zend_sym_node; 82 83 typedef struct _zend_jit_globals { 84 zend_bool enabled; 85 zend_bool on; 86 uint8_t trigger; 87 uint8_t opt_level; 88 uint32_t opt_flags; 89 90 const char *options; 91 zend_long buffer_size; 92 zend_long debug; 93 zend_long bisect_limit; 94 double prof_threshold; 95 zend_long max_root_traces; /* max number of root traces */ 96 zend_long max_side_traces; /* max number of side traces (per root trace) */ 97 zend_long max_exit_counters; /* max total number of side exits for all traces */ 98 zend_long hot_loop; 99 zend_long hot_func; 100 zend_long hot_return; 101 zend_long hot_side_exit; /* number of exits before taking side trace */ 102 zend_long blacklist_root_trace; /* number of attempts to JIT a root trace before blacklist it */ 103 zend_long blacklist_side_trace; /* number of attempts to JIT a side trace before blacklist it */ 104 zend_long max_loop_unrolls; /* max number of unrolled loops */ 105 zend_long max_recursive_calls; /* max number of recursive inlined call unrolls */ 106 zend_long max_recursive_returns; /* max number of recursive inlined return unrolls */ 107 zend_long max_polymorphic_calls; /* max number of inlined polymorphic calls */ 108 109 zend_sym_node *symbols; /* symbols for disassembler */ 110 111 zend_bool tracing; 112 113 zend_jit_trace_rec *current_trace; 114 zend_jit_trace_stack_frame *current_frame; 115 116 const zend_op *bad_root_cache_opline[ZEND_JIT_TRACE_BAD_ROOT_SLOTS]; 117 uint8_t bad_root_cache_count[ZEND_JIT_TRACE_BAD_ROOT_SLOTS]; 118 uint8_t bad_root_cache_stop[ZEND_JIT_TRACE_BAD_ROOT_SLOTS]; 119 uint32_t bad_root_slot; 120 121 uint8_t *exit_counters; 122 } zend_jit_globals; 123 124 #ifdef ZTS 125 # define JIT_G(v) ZEND_TSRMG(jit_globals_id, zend_jit_globals *, v) 126 extern int jit_globals_id; 127 #else 128 # define JIT_G(v) (jit_globals.v) 129 extern zend_jit_globals jit_globals; 130 #endif 131 132 ZEND_EXT_API int zend_jit_op_array(zend_op_array *op_array, zend_script *script); 133 ZEND_EXT_API int zend_jit_script(zend_script *script); 134 ZEND_EXT_API void zend_jit_unprotect(void); 135 ZEND_EXT_API void zend_jit_protect(void); 136 ZEND_EXT_API void zend_jit_init(void); 137 ZEND_EXT_API int zend_jit_config(zend_string *jit_options, int stage); 138 ZEND_EXT_API int zend_jit_debug_config(zend_long old_val, zend_long new_val, int stage); 139 ZEND_EXT_API int zend_jit_check_support(void); 140 ZEND_EXT_API int zend_jit_startup(void *jit_buffer, size_t size, zend_bool reattached); 141 ZEND_EXT_API void zend_jit_shutdown(void); 142 ZEND_EXT_API void zend_jit_activate(void); 143 ZEND_EXT_API void zend_jit_deactivate(void); 144 ZEND_EXT_API void zend_jit_status(zval *ret); 145 ZEND_EXT_API void zend_jit_restart(void); 146 147 typedef struct _zend_lifetime_interval zend_lifetime_interval; 148 typedef struct _zend_life_range zend_life_range; 149 150 struct _zend_life_range { 151 uint32_t start; 152 uint32_t end; 153 zend_life_range *next; 154 }; 155 156 #define ZREG_FLAGS_SHIFT 8 157 158 #define ZREG_STORE (1<<0) 159 #define ZREG_LOAD (1<<1) 160 #define ZREG_LAST_USE (1<<2) 161 #define ZREG_SPLIT (1<<3) 162 163 struct _zend_lifetime_interval { 164 int ssa_var; 165 union { 166 struct { 167 ZEND_ENDIAN_LOHI_3( 168 int8_t reg, 169 uint8_t flags, 170 uint16_t reserved 171 )}; 172 uint32_t reg_flags; 173 }; 174 zend_life_range range; 175 zend_lifetime_interval *hint; 176 zend_lifetime_interval *used_as_hint; 177 zend_lifetime_interval *list_next; 178 }; 179 180 #endif /* HAVE_JIT_H */ 181
