pike.git / src / interpreter.h

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pike.git/src/interpreter.h:12:   #undef GET_JUMP   #undef SKIPJUMP   #undef DOJUMP   #undef CASE   #undef BREAK   #undef DONE      #undef JUMP_DONE   #define JUMP_DONE DONE    - #ifdef HAVE_COMPUTED_GOTO +     - #define CASE(OP) PIKE_CONCAT(LABEL_,OP): FETCH - #define FETCH (instr = PROG_COUNTER[0]) - #ifdef PIKE_DEBUG - #define DONE continue - #else /* !PIKE_DEBUG */ - #define DONE do { \ -  Pike_fp->pc = PROG_COUNTER++; \ -  goto *instr; \ -  } while(0) -  - #endif /* PIKE_DEBUG */ -  - #define LOW_GET_ARG() ((INT32)(ptrdiff_t)(*(PROG_COUNTER++))) - #define LOW_GET_JUMP() ((INT32)(ptrdiff_t)(*(PROG_COUNTER))) - #define LOW_SKIPJUMP() (instr = (++PROG_COUNTER)[0]) -  - #define GET_ARG() LOW_GET_ARG() - #define GET_ARG2() LOW_GET_ARG() -  - #else /* !HAVE_COMPUTED_GOTO */ -  +    #define CASE(X) case (X)-F_OFFSET:   #define DONE break   #define FETCH      #define LOW_GET_ARG() ((PROG_COUNTER++)[0])   #if PIKE_BYTECODE_METHOD == PIKE_BYTECODE_SPARC   #define LOW_GET_JUMP() (PROG_COUNTER[0])   #define LOW_SKIPJUMP() (++PROG_COUNTER)   #else /* PIKE_BYTECODE_METHOD != PIKE_BYTECODE_SPARC */ - #define LOW_GET_JUMP() EXTRACT_INT(PROG_COUNTER) + #define LOW_GET_JUMP() (INT32)get_unaligned32(PROG_COUNTER)   #define LOW_SKIPJUMP() (PROG_COUNTER += sizeof(INT32))   #endif /* PIKE_BYTECODE_METHOD */      #ifdef PIKE_DEBUG      #define GET_ARG() ( \    instr=prefix, \    prefix=0, \    instr += LOW_GET_ARG(), \    DEBUG_LOG_ARG (instr), \
pike.git/src/interpreter.h:71:    DEBUG_LOG_ARG2 (instr), \    instr)      #else /* !PIKE_DEBUG */      #define GET_ARG() (instr=prefix,prefix=0,instr+LOW_GET_ARG())   #define GET_ARG2() (instr=prefix2,prefix2=0,instr+LOW_GET_ARG())      #endif /* PIKE_DEBUG */    - #endif /* HAVE_COMPUTED_GOTO */ +       #ifndef STEP_BREAK_LINE   #define STEP_BREAK_LINE   #endif      static int eval_instruction(PIKE_OPCODE_T *pc)   { -  PIKE_INSTR_T instr; - #ifdef HAVE_COMPUTED_GOTO -  static void *strap = &&init_strap; -  instr = NULL; - #else /* !HAVE_COMPUTED_GOTO */ +     unsigned INT32 prefix2=0,prefix=0; - #endif /* HAVE_COMPUTED_GOTO */ -  /* Variables that are commonly used by the various opcodes. -  * They are defined here to reduce the size of the stack frame. -  */ -  struct svalue tmp, tmp2; -  struct external_variable_context loc; -  struct program *p; -  struct object *o; -  struct svalue *s; -  PIKE_OPCODE_T *addr; -  DO_IF_DEBUG(dynamic_buffer save_buf); +     - #undef LOCAL_VAR - #define LOCAL_VAR(X) /* Local variable defined above. */ -  - #ifdef HAVE_COMPUTED_GOTO -  goto *strap; -  normal_strap: - #endif /* HAVE_COMPUTED_GOTO */ -  +     debug_malloc_touch(Pike_fp);    while(1)    {    INT32 arg1, arg2; -  instr = pc[0]; +  PIKE_INSTR_T instr = pc[0];    Pike_fp->pc = pc++;       STEP_BREAK_LINE      #ifdef PIKE_DEBUG    if (d_flag || Pike_interpreter.trace_level > 2)    low_debug_instr_prologue (instr);   #endif    - #ifdef HAVE_COMPUTED_GOTO -  goto *instr; - #else /* !HAVE_COMPUTED_GOTO */ +     switch(instr)    {    /* NOTE: The prefix handling is not needed in computed-goto mode. */    /* Support to allow large arguments */    CASE(F_PREFIX_256); prefix+=256; DONE;    CASE(F_PREFIX_512); prefix+=512; DONE;    CASE(F_PREFIX_768); prefix+=768; DONE;    CASE(F_PREFIX_1024); prefix+=1024; DONE;    CASE(F_PREFIX_24BITX256); -  prefix += (pc++)[0]<<24; +  prefix += (unsigned INT32)(pc++)[0]<<24;    CASE(F_PREFIX_WORDX256); -  prefix += (pc++)[0]<<16; +  prefix += (unsigned INT32)(pc++)[0]<<16;    CASE(F_PREFIX_CHARX256);    prefix += (pc++)[0]<<8;    DONE;       /* Support to allow large arguments */    CASE(F_PREFIX2_256); prefix2+=256; DONE;    CASE(F_PREFIX2_512); prefix2+=512; DONE;    CASE(F_PREFIX2_768); prefix2+=768; DONE;    CASE(F_PREFIX2_1024); prefix2+=1024; DONE;    CASE(F_PREFIX2_24BITX256); -  prefix2 += (pc++)[0]<<24; +  prefix2 += (unsigned INT32)(pc++)[0]<<24;    CASE(F_PREFIX2_WORDX256); -  prefix2 += (pc++)[0]<<16; +  prefix2 += (unsigned INT32)(pc++)[0]<<16;    CASE(F_PREFIX2_CHARX256);    prefix2 += (pc++)[0]<<8;    DONE; - #endif /* HAVE_COMPUTED_GOTO */ +          #define INTERPRETER      #define OPCODE0(OP, DESC, FLAGS, CODE) CASE(OP); CODE; DONE   #define OPCODE1(OP, DESC, FLAGS, CODE) CASE(OP); { \    arg1=GET_ARG(); \    FETCH; \    CODE; \    } DONE
pike.git/src/interpreter.h:223:      #define OPCODE0_BRANCH OPCODE0_PTRJUMP   #define OPCODE1_BRANCH OPCODE1_PTRJUMP   #define OPCODE2_BRANCH OPCODE2_PTRJUMP   #define OPCODE0_TAILBRANCH OPCODE0_TAILPTRJUMP   #define OPCODE1_TAILBRANCH OPCODE1_TAILPTRJUMP   #define OPCODE2_TAILBRANCH OPCODE2_TAILPTRJUMP      #include "interpret_functions.h"    - #ifndef HAVE_COMPUTED_GOTO +     default:    Pike_fatal("Strange instruction %ld\n",(long)instr);    } - #endif /* !HAVE_COMPUTED_GOTO */ +     }    -  /* NOT_REACHED */ +  UNREACHABLE();    - #ifdef HAVE_COMPUTED_GOTO -  - #undef OPCODE0 - #undef OPCODE1 - #undef OPCODE2 - #undef OPCODE0_TAIL - #undef OPCODE1_TAIL - #undef OPCODE2_TAIL - #undef OPCODE0_JUMP - #undef OPCODE1_JUMP - #undef OPCODE2_JUMP - #undef OPCODE0_TAILJUMP - #undef OPCODE1_TAILJUMP - #undef OPCODE2_TAILJUMP - #undef OPCODE0_PTRJUMP - #undef OPCODE1_PTRJUMP - #undef OPCODE2_PTRJUMP - #undef OPCODE0_TAILPTRJUMP - #undef OPCODE1_TAILPTRJUMP - #undef OPCODE2_TAILPTRJUMP - #undef OPCODE0_RETURN - #undef OPCODE1_RETURN - #undef OPCODE2_RETURN - #undef OPCODE0_TAILRETURN - #undef OPCODE1_TAILRETURN - #undef OPCODE2_TAILRETURN - #undef OPCODE0_BRANCH - #undef OPCODE1_BRANCH - #undef OPCODE2_BRANCH - #undef OPCODE0_TAILBRANCH - #undef OPCODE1_TAILBRANCH - #undef OPCODE2_TAILBRANCH -  /* NOTE: No need to redefine these. -  * #undef OPCODE0_ALIAS -  * #undef OPCODE1_ALIAS -  * #undef OPCODE2_ALIAS -  */ - #undef LABEL - #define LABEL(OP) &&PIKE_CONCAT(LABEL_,OP) - #define NULL_LABEL(OP) NULL - #define OPCODE0(OP,DESC) LABEL(OP), - #define OPCODE1(OP,DESC) LABEL(OP), - #define OPCODE2(OP,DESC) LABEL(OP), - #define OPCODE0_TAIL(OP,DESC) LABEL(OP), - #define OPCODE1_TAIL(OP,DESC) LABEL(OP), - #define OPCODE2_TAIL(OP,DESC) LABEL(OP), - #define OPCODE0_PTRJUMP(OP,DESC) LABEL(OP), - #define OPCODE1_PTRJUMP(OP,DESC) LABEL(OP), - #define OPCODE2_PTRJUMP(OP,DESC) LABEL(OP), - #define OPCODE0_TAILPTRJUMP(OP,DESC) LABEL(OP), - #define OPCODE1_TAILPTRJUMP(OP,DESC) LABEL(OP), - #define OPCODE2_TAILPTRJUMP(OP,DESC) LABEL(OP), - #define OPCODE0_RETURN(OP,DESC) LABEL(OP), - #define OPCODE1_RETURN(OP,DESC) LABEL(OP), - #define OPCODE2_RETURN(OP,DESC) LABEL(OP), - #define OPCODE0_TAILRETURN(OP,DESC) LABEL(OP), - #define OPCODE1_TAILRETURN(OP,DESC) LABEL(OP), - #define OPCODE2_TAILRETURN(OP,DESC) LABEL(OP), -  -  init_strap: -  strap = &&normal_strap; -  { -  static void *table[] = { -  NULL_LABEL(F_OFFSET), -  -  NULL_LABEL(F_PREFIX_256), -  NULL_LABEL(F_PREFIX_512), -  NULL_LABEL(F_PREFIX_768), -  NULL_LABEL(F_PREFIX_1024), -  NULL_LABEL(F_PREFIX_CHARX256), -  NULL_LABEL(F_PREFIX_WORDX256), -  NULL_LABEL(F_PREFIX_24BITX256), -  -  NULL_LABEL(F_PREFIX2_256), -  NULL_LABEL(F_PREFIX2_512), -  NULL_LABEL(F_PREFIX2_768), -  NULL_LABEL(F_PREFIX2_1024), -  NULL_LABEL(F_PREFIX2_CHARX256), -  NULL_LABEL(F_PREFIX2_WORDX256), -  NULL_LABEL(F_PREFIX2_24BITX256), -  - #include "interpret_protos.h" -  }; -  -  static struct op_2_f lookup[] = { - #undef LABEL - #define LABEL(OP) { &&PIKE_CONCAT(LABEL_, OP), OP } - #undef NULL_LABEL - #define NULL_LABEL(OP) { NULL, OP } -  -  NULL_LABEL(F_OFFSET), -  -  NULL_LABEL(F_PREFIX_256), -  NULL_LABEL(F_PREFIX_512), -  NULL_LABEL(F_PREFIX_768), -  NULL_LABEL(F_PREFIX_1024), -  NULL_LABEL(F_PREFIX_CHARX256), -  NULL_LABEL(F_PREFIX_WORDX256), -  NULL_LABEL(F_PREFIX_24BITX256), -  -  NULL_LABEL(F_PREFIX2_256), -  NULL_LABEL(F_PREFIX2_512), -  NULL_LABEL(F_PREFIX2_768), -  NULL_LABEL(F_PREFIX2_1024), -  NULL_LABEL(F_PREFIX2_CHARX256), -  NULL_LABEL(F_PREFIX2_WORDX256), -  NULL_LABEL(F_PREFIX2_24BITX256), -  - #include "interpret_protos.h" -  }; -  - #ifdef PIKE_DEBUG -  if (sizeof(table) != (F_MAX_OPCODE-F_OFFSET)*sizeof(void *)) -  Pike_fatal("opcode_to_label out of sync: 0x%08lx != 0x%08lx\n", -  DO_NOT_WARN((long)sizeof(table)), -  DO_NOT_WARN((long)((F_MAX_OPCODE-F_OFFSET)*sizeof(void *)))); - #endif /* PIKE_DEBUG */ -  fcode_to_opcode = table; -  opcode_to_fcode = lookup; -  -  qsort(lookup, F_MAX_OPCODE-F_OFFSET, sizeof(struct op_2_f), -  lookup_sort_fun); -  -  return 0; +    } - #endif /* HAVE_COMPUTED_GOTO */ - } +