зеркало из https://github.com/github/ruby.git
300 строки
9.4 KiB
C
300 строки
9.4 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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RUBY_SYMBOL_EXPORT_BEGIN
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RUBY_EXTERN VALUE ruby_vm_const_missing_count;
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RUBY_EXTERN rb_serial_t ruby_vm_global_method_state;
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RUBY_EXTERN rb_serial_t ruby_vm_global_constant_state;
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RUBY_EXTERN rb_serial_t ruby_vm_class_serial;
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RUBY_SYMBOL_EXPORT_END
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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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static inline int
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rb_obj_hidden_p(VALUE obj)
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{
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if (SPECIAL_CONST_P(obj)) {
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return FALSE;
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}
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else {
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return RBASIC_CLASS(obj) ? FALSE : TRUE;
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}
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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 VM_REG_CFP (reg_cfp)
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#define VM_REG_PC (VM_REG_CFP->pc)
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#define VM_REG_SP (VM_REG_CFP->sp)
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#define VM_REG_EP (VM_REG_CFP->ep)
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#define RESTORE_REGS() do { \
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VM_REG_CFP = ec->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, VM_REG_PC))
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#define SET_PC(x) (VM_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(VM_REG_PC + (n)))
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#define JUMP(dst) (SET_PC(VM_REG_PC + (dst)))
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/* frame pointer, environment pointer */
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#define GET_CFP() (COLLECT_USAGE_REGISTER_HELPER(CFP, GET, VM_REG_CFP))
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#define GET_EP() (COLLECT_USAGE_REGISTER_HELPER(EP, GET, VM_REG_EP))
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#define SET_EP(x) (VM_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, VM_REG_SP))
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#define SET_SP(x) (VM_REG_SP = (COLLECT_USAGE_REGISTER_HELPER(SP, SET, (x))))
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#define INC_SP(x) (VM_REG_SP += (COLLECT_USAGE_REGISTER_HELPER(SP, SET, (x))))
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#define DEC_SP(x) (VM_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 ADJ_SP(x) INC_SP(x)
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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)[VM_ENV_DATA_INDEX_SPECVAL] & ~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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#ifdef MJIT_HEADER
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/* When calling ISeq which may catch an exception from JIT-ed code, we should not call
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mjit_exec directly to prevent the caller frame from being canceled. That's because
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the caller frame may have stack values in the local variables and the cancelling
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the caller frame will purge them. But directly calling mjit_exec is faster... */
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#define EXEC_EC_CFP(val) do { \
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if (ec->cfp->iseq->body->catch_except_p) { \
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VM_ENV_FLAGS_SET(ec->cfp->ep, VM_FRAME_FLAG_FINISH); \
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val = vm_exec(ec, TRUE); \
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} \
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else if ((val = mjit_exec(ec)) == Qundef) { \
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VM_ENV_FLAGS_SET(ec->cfp->ep, VM_FRAME_FLAG_FINISH); \
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val = vm_exec(ec, FALSE); \
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} \
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} while (0)
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#else
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/* When calling from VM, longjmp in the callee won't purge any JIT-ed caller frames.
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So it's safe to directly call mjit_exec. */
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#define EXEC_EC_CFP(val) do { \
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if ((val = mjit_exec(ec)) == Qundef) { \
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RESTORE_REGS(); \
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NEXT_INSN(); \
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} \
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} while (0)
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#endif
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#define CALL_METHOD(calling, ci, cc) do { \
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VALUE v = (*(cc)->call)(ec, GET_CFP(), (calling), (ci), (cc)); \
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if (v == Qundef) { \
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EXEC_EC_CFP(val); \
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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(cc, func, enabled) do { \
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if (LIKELY(enabled)) ((cc)->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_HANDLER() (GET_LEP()[VM_ENV_DATA_INDEX_SPECVAL])
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#define WIDTH_OF_opt_send_without_block \
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((rb_snum_t)attr_width_opt_send_without_block(0, 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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#define FLOAT_HEAP_P(x) (!SPECIAL_CONST_P(x) && RBASIC_CLASS(x) == rb_cFloat)
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#define FLOAT_INSTANCE_P(x) (FLONUM_P(x) || FLOAT_HEAP_P(x))
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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 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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extern rb_method_definition_t *rb_method_definition_create(rb_method_type_t type, ID mid);
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extern void rb_method_definition_set(const rb_method_entry_t *me, rb_method_definition_t *def, void *opts);
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extern int rb_method_definition_eq(const rb_method_definition_t *d1, const rb_method_definition_t *d2);
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extern VALUE rb_make_no_method_exception(VALUE exc, VALUE format, VALUE obj,
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int argc, const VALUE *argv, int priv);
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static inline struct vm_throw_data *
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THROW_DATA_NEW(VALUE val, const rb_control_frame_t *cf, VALUE st)
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{
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return (struct vm_throw_data *)rb_imemo_new(imemo_throw_data, val, (VALUE)cf, st, 0);
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}
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static inline VALUE
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THROW_DATA_VAL(const struct vm_throw_data *obj)
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{
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VM_ASSERT(THROW_DATA_P(obj));
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return obj->throw_obj;
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}
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static inline const rb_control_frame_t *
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THROW_DATA_CATCH_FRAME(const struct vm_throw_data *obj)
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{
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VM_ASSERT(THROW_DATA_P(obj));
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return obj->catch_frame;
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}
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static inline int
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THROW_DATA_STATE(const struct vm_throw_data *obj)
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{
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VM_ASSERT(THROW_DATA_P(obj));
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return (int)obj->throw_state;
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}
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static inline int
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THROW_DATA_CONSUMED_P(const struct vm_throw_data *obj)
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{
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VM_ASSERT(THROW_DATA_P(obj));
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return obj->flags & THROW_DATA_CONSUMED;
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}
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static inline void
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THROW_DATA_CATCH_FRAME_SET(struct vm_throw_data *obj, const rb_control_frame_t *cfp)
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{
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VM_ASSERT(THROW_DATA_P(obj));
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obj->catch_frame = cfp;
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}
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static inline void
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THROW_DATA_STATE_SET(struct vm_throw_data *obj, int st)
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{
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VM_ASSERT(THROW_DATA_P(obj));
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obj->throw_state = (VALUE)st;
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}
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static inline void
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THROW_DATA_CONSUMED_SET(struct vm_throw_data *obj)
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{
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if (THROW_DATA_P(obj) &&
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THROW_DATA_STATE(obj) == TAG_BREAK) {
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obj->flags |= THROW_DATA_CONSUMED;
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}
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}
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#define IS_ARGS_SPLAT(ci) ((ci)->flag & VM_CALL_ARGS_SPLAT)
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#define IS_ARGS_KEYWORD(ci) ((ci)->flag & VM_CALL_KWARG)
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#define CALLER_SETUP_ARG(cfp, calling, ci) do { \
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if (UNLIKELY(IS_ARGS_SPLAT(ci))) vm_caller_setup_arg_splat((cfp), (calling)); \
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if (UNLIKELY(IS_ARGS_KEYWORD(ci))) vm_caller_setup_arg_kw((cfp), (calling), (ci)); \
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} while (0)
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#endif /* RUBY_INSNHELPER_H */
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