зеркало из https://github.com/github/ruby.git
234 строки
7.0 KiB
C
234 строки
7.0 KiB
C
/**********************************************************************
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insnhelper.h - helper macros to implement each instructions
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$Author$
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created at: 04/01/01 15:50:34 JST
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Copyright (C) 2004-2007 Koichi Sasada
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**********************************************************************/
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#ifndef RUBY_INSNHELPER_H
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#define RUBY_INSNHELPER_H
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/**
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* VM Debug Level
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*
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* debug level:
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* 0: no debug output
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* 1: show instruction name
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* 2: show stack frame when control stack frame is changed
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* 3: show stack status
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* 4: show register
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* 5:
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* 10: gc check
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*/
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#ifndef VMDEBUG
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#define VMDEBUG 0
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#endif
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#if 0
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#undef VMDEBUG
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#define VMDEBUG 3
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#endif
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extern VALUE ruby_vm_const_missing_count;
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#if VM_COLLECT_USAGE_DETAILS
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#define COLLECT_USAGE_INSN(insn) vm_collect_usage_insn(insn)
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#define COLLECT_USAGE_OPERAND(insn, n, op) vm_collect_usage_operand((insn), (n), ((VALUE)(op)))
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#define COLLECT_USAGE_REGISTER(reg, s) vm_collect_usage_register((reg), (s))
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#else
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#define COLLECT_USAGE_INSN(insn) /* none */
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#define COLLECT_USAGE_OPERAND(insn, n, op) /* none */
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#define COLLECT_USAGE_REGISTER(reg, s) /* none */
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#endif
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/**********************************************************/
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/* deal with stack */
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/**********************************************************/
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#define PUSH(x) (SET_SV(x), INC_SP(1))
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#define TOPN(n) (*(GET_SP()-(n)-1))
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#define POPN(n) (DEC_SP(n))
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#define POP() (DEC_SP(1))
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#define STACK_ADDR_FROM_TOP(n) (GET_SP()-(n))
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#define GET_TOS() (tos) /* dummy */
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/**********************************************************/
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/* deal with registers */
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/**********************************************************/
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#define REG_CFP (reg_cfp)
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#define REG_PC (REG_CFP->pc)
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#define REG_SP (REG_CFP->sp)
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#define REG_EP (REG_CFP->ep)
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#define RESTORE_REGS() do { \
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REG_CFP = th->cfp; \
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} while (0)
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#define REG_A reg_a
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#define REG_B reg_b
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enum vm_regan_regtype {
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VM_REGAN_PC = 0,
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VM_REGAN_SP = 1,
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VM_REGAN_EP = 2,
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VM_REGAN_CFP = 3,
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VM_REGAN_SELF = 4,
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VM_REGAN_ISEQ = 5,
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};
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enum vm_regan_acttype {
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VM_REGAN_ACT_GET = 0,
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VM_REGAN_ACT_SET = 1,
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};
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#if VM_COLLECT_USAGE_DETAILS
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#define COLLECT_USAGE_REGISTER_HELPER(a, b, v) \
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(COLLECT_USAGE_REGISTER((VM_REGAN_##a), (VM_REGAN_ACT_##b)), (v))
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#else
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#define COLLECT_USAGE_REGISTER_HELPER(a, b, v) (v)
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#endif
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/* PC */
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#define GET_PC() (COLLECT_USAGE_REGISTER_HELPER(PC, GET, REG_PC))
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#define SET_PC(x) (REG_PC = (COLLECT_USAGE_REGISTER_HELPER(PC, SET, (x))))
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#define GET_CURRENT_INSN() (*GET_PC())
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#define GET_OPERAND(n) (GET_PC()[(n)])
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#define ADD_PC(n) (SET_PC(REG_PC + (n)))
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#define GET_PC_COUNT() (REG_PC - GET_ISEQ()->iseq_encoded)
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#define JUMP(dst) (REG_PC += (dst))
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/* frame pointer, environment pointer */
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#define GET_CFP() (COLLECT_USAGE_REGISTER_HELPER(CFP, GET, REG_CFP))
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#define GET_EP() (COLLECT_USAGE_REGISTER_HELPER(EP, GET, REG_EP))
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#define SET_EP(x) (REG_EP = (COLLECT_USAGE_REGISTER_HELPER(EP, SET, (x))))
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#define GET_LEP() (VM_EP_LEP(GET_EP()))
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/* SP */
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#define GET_SP() (COLLECT_USAGE_REGISTER_HELPER(SP, GET, REG_SP))
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#define SET_SP(x) (REG_SP = (COLLECT_USAGE_REGISTER_HELPER(SP, SET, (x))))
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#define INC_SP(x) (REG_SP += (COLLECT_USAGE_REGISTER_HELPER(SP, SET, (x))))
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#define DEC_SP(x) (REG_SP -= (COLLECT_USAGE_REGISTER_HELPER(SP, SET, (x))))
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#define SET_SV(x) (*GET_SP() = (x))
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/* set current stack value as x */
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#define GET_SP_COUNT() (REG_SP - th->stack)
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/* instruction sequence C struct */
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#define GET_ISEQ() (GET_CFP()->iseq)
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/**********************************************************/
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/* deal with variables */
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/**********************************************************/
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#define GET_PREV_EP(ep) ((VALUE *)((ep)[0] & ~0x03))
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#define GET_GLOBAL(entry) rb_gvar_get((struct rb_global_entry*)(entry))
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#define SET_GLOBAL(entry, val) rb_gvar_set((struct rb_global_entry*)(entry), (val))
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#define GET_CONST_INLINE_CACHE(dst) ((IC) * (GET_PC() + (dst) + 2))
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/**********************************************************/
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/* deal with values */
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/**********************************************************/
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#define GET_SELF() (COLLECT_USAGE_REGISTER_HELPER(SELF, GET, GET_CFP()->self))
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/**********************************************************/
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/* deal with control flow 2: method/iterator */
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/**********************************************************/
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#define COPY_CREF_OMOD(c1, c2) do { \
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RB_OBJ_WRITE((c1), &(c1)->nd_refinements, (c2)->nd_refinements); \
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if (!NIL_P((c2)->nd_refinements)) { \
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(c1)->flags |= NODE_FL_CREF_OMOD_SHARED; \
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(c2)->flags |= NODE_FL_CREF_OMOD_SHARED; \
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} \
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} while (0)
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#define COPY_CREF(c1, c2) do { \
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NODE *__tmp_c2 = (c2); \
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COPY_CREF_OMOD(c1, __tmp_c2); \
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RB_OBJ_WRITE((c1), &(c1)->nd_clss, __tmp_c2->nd_clss); \
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(c1)->nd_visi = __tmp_c2->nd_visi;\
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RB_OBJ_WRITE((c1), &(c1)->nd_next, __tmp_c2->nd_next); \
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if (__tmp_c2->flags & NODE_FL_CREF_PUSHED_BY_EVAL) { \
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(c1)->flags |= NODE_FL_CREF_PUSHED_BY_EVAL; \
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} \
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} while (0)
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#define CALL_METHOD(ci) do { \
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VALUE v = (*(ci)->call)(th, GET_CFP(), (ci)); \
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if (v == Qundef) { \
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RESTORE_REGS(); \
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NEXT_INSN(); \
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} \
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else { \
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val = v; \
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} \
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} while (0)
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/* set fastpath when cached method is *NOT* protected
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* because inline method cache does not care about receiver.
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*/
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#ifndef OPT_CALL_FASTPATH
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#define OPT_CALL_FASTPATH 1
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#endif
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#if OPT_CALL_FASTPATH
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#define CI_SET_FASTPATH(ci, func, enabled) do { \
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if (LIKELY(enabled)) ((ci)->call = (func)); \
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} while (0)
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#else
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#define CI_SET_FASTPATH(ci, func, enabled) /* do nothing */
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#endif
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#define GET_BLOCK_PTR() ((rb_block_t *)(GC_GUARDED_PTR_REF(GET_LEP()[0])))
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/**********************************************************/
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/* deal with control flow 3: exception */
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/**********************************************************/
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/**********************************************************/
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/* others */
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/**********************************************************/
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/* optimize insn */
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#define FIXNUM_2_P(a, b) ((a) & (b) & 1)
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#if USE_FLONUM
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#define FLONUM_2_P(a, b) (((((a)^2) | ((b)^2)) & 3) == 0) /* (FLONUM_P(a) && FLONUM_P(b)) */
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#else
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#define FLONUM_2_P(a, b) 0
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#endif
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#ifndef USE_IC_FOR_SPECIALIZED_METHOD
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#define USE_IC_FOR_SPECIALIZED_METHOD 1
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#endif
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#define CALL_SIMPLE_METHOD(recv_) do { \
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ci->blockptr = 0; ci->argc = ci->orig_argc; \
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vm_search_method(ci, ci->recv = (recv_)); \
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CALL_METHOD(ci); \
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} while (0)
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#define NEXT_CLASS_SERIAL() (++ruby_vm_class_serial)
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#define GET_GLOBAL_METHOD_STATE() (ruby_vm_global_method_state)
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#define INC_GLOBAL_METHOD_STATE() (++ruby_vm_global_method_state)
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#define GET_GLOBAL_CONSTANT_STATE() (ruby_vm_global_constant_state)
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#define INC_GLOBAL_CONSTANT_STATE() (++ruby_vm_global_constant_state)
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static VALUE make_no_method_exception(VALUE exc, const char *format,
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VALUE obj, int argc, const VALUE *argv);
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#endif /* RUBY_INSNHELPER_H */
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