pike.git/ src/ interpret.c

2001-07-16

2001-07-16 19:48:59 by Fredrik Hübinette (Hubbe) <hubbe@hubbe.net>

• f8222682d94e30c39d86fc6a510b1139d74feb70 (105 lines) (+102/-3) ^{[ Show | Annotate ]}
  Branch: 7.9

first incarnation of --with-machine-code it only work on x86 with gcc so far, and that doesn't even work either...

Rev: bin/make_interpret_functions.pike:1.1
Rev: src/Makefile.in:1.268
Rev: src/acconfig.h:1.92
Rev: src/configure.in:1.538
Rev: src/interpret.c:1.220
Rev: src/interpret_functions.h:1.76
Rev: src/interpreter.h:1.70
Rev: src/las.c:1.257
Rev: src/lex.c:1.98
Rev: src/lex.h:1.19
Rev: src/peep.c:1.54
Rev: src/program.c:1.354
Rev: src/program.h:1.139

5:   \*/   /**/   #include "global.h" - RCSID("$Id: interpret.c,v 1.219 2001/07/13 11:26:38 grubba Exp $"); + RCSID("$Id: interpret.c,v 1.220 2001/07/16 19:48:57 hubbe Exp $");   #include "interpret.h"   #include "object.h"   #include "program.h"
744:   #define EVAL_INSTR_RET_CHECK(x)   #endif    +  + #ifdef PIKE_USE_MACHINE_CODE +  + #define LOW_GET_JUMP() EXTRACT_INT(PROG_COUNTER) + #define LOW_SKIPJUMP() (PROG_COUNTER += sizeof(INT32)) +  + /* Labels to jump to to cause eval_instruction to return */ + /* FIXME: Replace these with assembler lables */ + void *do_inter_return_label; + void *do_escape_catch_label; + void *dummy_label; +  +  + #define OPCODE0(O,N,C) void PIKE_CONCAT(opcode_,O)(void) C + #define OPCODE1(O,N,C) void PIKE_CONCAT(opcode_,O)(INT32 arg1) C + #define OPCODE2(O,N,C) void PIKE_CONCAT(opcode_,O)(INT32 arg1,INT32 arg2) C +  + #define OPCODE0_JUMP(O,N,C) void PIKE_CONCAT(opcode_,O)(void) C + #define OPCODE1_JUMP(O,N,C) void PIKE_CONCAT(opcode_,O)(INT32 arg1) C + #define OPCODE2_JUMP(O,N,C) void PIKE_CONCAT(opcode_,O)(INT32 arg1,INT32 arg2) C +  + #define OPCODE0_TAIL(O,N,C) void PIKE_CONCAT(opcode_,O)(void) C + #define OPCODE1_TAIL(O,N,C) void PIKE_CONCAT(opcode_,O)(INT32 arg1) C + #define OPCODE2_TAIL(O,N,C) void PIKE_CONCAT(opcode_,O)(INT32 arg1,INT32 arg2) C +  + #define OPCODE0_TAILJUMP(O,N,C) void PIKE_CONCAT(opcode_,O)(void) C + #define OPCODE1_TAILJUMP(O,N,C) void PIKE_CONCAT(opcode_,O)(INT32 arg1) C + #define OPCODE2_TAILJUMP(O,N,C) void PIKE_CONCAT(opcode_,O)(INT32 arg1,INT32 arg2) C +  + #undef HAVE_COMPUTED_GOTO +  + #if defined(__i386__) && defined(__GNUC__) + #define PROG_COUNTER (((unsigned char **)__builtin_frame_address(0))[1]) +  + static int eval_instruction(PIKE_OPCODE_T *pc) + { +  do_inter_return_label = && inter_return_label; +  do_escape_catch_label = && inter_escape_catch_label; +  +  /* This code does not clobber %eax, but +  * the code jumped to does. +  */ +  __asm__ __volatile__( " sub $8,%%esp\n" +  " jmp *%0" +  : "=m" (pc) +  : +  : "cc", "memory", "eax" ); +  +  /* This code is never reached, but will +  * prevent gcc from optimizing the labels below too much +  */ +  +  fprintf(stderr,"We have reached the end of the world!\n"); +  goto *dummy_label; +  +  /* %%esp will be slightly buggered after +  * returning from the function code (8 bytes off), but that +  * should not matter to these return statements. -Hubbe +  */ +  +  inter_return_label: return -1; +  inter_escape_catch_label: return -2; + } +  + #endif +  + #ifdef PIKE_USE_SPARC_GCC + #define PROG_COUNTER reg_pc + register void *reg_pc __asm__ ("%i7"); + #endif +  + #undef DONE + #undef FETCH + #undef INTER_RETURN + #undef INTER_ESCAPE_CATCH +  + #define DONE return + #define FETCH + #define INTER_RETURN {PROG_COUNTER=do_inter_return_label;DONE;} + #define INTER_ESCAPE_CATCH {PROG_COUNTER=do_escape_catch_label;DONE;} +  + #include "interpret_functions_fixed.h" +  +  + #else /* PIKE_USE_MACHINE_CODE */ +  +    #ifdef HAVE_COMPUTED_GOTO   int lookup_sort_fun(const void *a, const void *b)   {
761:      #undef eval_instruction   #define eval_instruction eval_instruction_without_debug +    #undef PIKE_DEBUG -  + #undef NDEBUG + #undef DO_IF_DEBUG + #define DO_IF_DEBUG(X)   #define print_return_value()   #include "interpreter.h" - #undef print_return_value +    #define PIKE_DEBUG -  + #define NDEBUG + #undef DO_IF_DEBUG + #define DO_IF_DEBUG(X) X + #undef print_return_value +    #undef eval_instruction      static inline int eval_instruction(unsigned char *pc)
781:   #include "interpreter.h"   #endif    +  + #endif /* PIKE_USE_MACHINE_CODE */ +    static void trace_return_value(void)   {    char *s;
2080:    free_all_pike_frame_blocks();   #endif   } -  +