зеркало из https://github.com/github/ruby.git
98 строки
3.6 KiB
C
98 строки
3.6 KiB
C
// This file is parsed by tool/mjit/generate.rb to generate mjit_c.rb
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#ifndef MJIT_C_H
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#define MJIT_C_H
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#include "ruby/internal/config.h"
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#include "vm_core.h"
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#include "vm_callinfo.h"
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#include "builtin.h"
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#include "ccan/list/list.h"
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#include "mjit.h"
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#include "shape.h"
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// Macros to check if a position is already compiled using compile_status.stack_size_for_pos
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#define NOT_COMPILED_STACK_SIZE -1
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#define ALREADY_COMPILED_P(status, pos) (status->stack_size_for_pos[pos] != NOT_COMPILED_STACK_SIZE)
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// Linked list of struct rb_mjit_unit.
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struct rb_mjit_unit_list {
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struct ccan_list_head head;
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int length; // the list length
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};
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enum rb_mjit_unit_type {
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// Single-ISEQ unit for unit_queue
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MJIT_UNIT_ISEQ = 0,
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// Multi-ISEQ unit for mjit_batch
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MJIT_UNIT_BATCH = 1,
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// All-ISEQ unit for mjit_compact
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MJIT_UNIT_COMPACT = 2,
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};
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// The unit structure that holds metadata of ISeq for MJIT.
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// TODO: Use different structs for ISEQ and BATCH/COMPACT
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struct rb_mjit_unit {
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struct ccan_list_node unode;
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// Unique order number of unit.
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int id;
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// Type of this unit
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enum rb_mjit_unit_type type;
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/* MJIT_UNIT_ISEQ */
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// ISEQ for a non-batch unit
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rb_iseq_t *iseq;
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// Only used by unload_units. Flag to check this unit is currently on stack or not.
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bool used_code_p;
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// mjit_compile's optimization switches
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struct rb_mjit_compile_info compile_info;
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// captured CC values, they should be marked with iseq.
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const struct rb_callcache **cc_entries;
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// ISEQ_BODY(iseq)->ci_size + ones of inlined iseqs
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unsigned int cc_entries_size;
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/* MJIT_UNIT_BATCH, MJIT_UNIT_COMPACT */
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// Dlopen handle of the loaded object file.
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void *handle;
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// Units compacted by this batch
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struct rb_mjit_unit_list units; // MJIT_UNIT_BATCH only
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};
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// Storage to keep data which is consistent in each conditional branch.
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// This is created and used for one `compile_insns` call and its values
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// should be copied for extra `compile_insns` call.
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struct compile_branch {
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unsigned int stack_size; // this simulates sp (stack pointer) of YARV
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bool finish_p; // if true, compilation in this branch should stop and let another branch to be compiled
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};
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// For propagating information needed for lazily pushing a frame.
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struct inlined_call_context {
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int orig_argc; // ci->orig_argc
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VALUE me; // vm_cc_cme(cc)
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int param_size; // def_iseq_ptr(vm_cc_cme(cc)->def)->body->param.size
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int local_size; // def_iseq_ptr(vm_cc_cme(cc)->def)->body->local_table_size
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};
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// Storage to keep compiler's status. This should have information
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// which is global during one `mjit_compile` call. Ones conditional
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// in each branch should be stored in `compile_branch`.
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struct compile_status {
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bool success; // has true if compilation has had no issue
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int *stack_size_for_pos; // stack_size_for_pos[pos] has stack size for the position (otherwise -1)
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// If true, JIT-ed code will use local variables to store pushed values instead of
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// using VM's stack and moving stack pointer.
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bool local_stack_p;
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// Index of call cache entries captured to compiled_iseq to be marked on GC
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int cc_entries_index;
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// A pointer to root (i.e. not inlined) iseq being compiled.
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const struct rb_iseq_constant_body *compiled_iseq;
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int compiled_id; // Just a copy of compiled_iseq->jit_unit->id
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// Mutated optimization levels
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struct rb_mjit_compile_info *compile_info;
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// If `inlined_iseqs[pos]` is not NULL, `mjit_compile_body` tries to inline ISeq there.
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const struct rb_iseq_constant_body **inlined_iseqs;
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struct inlined_call_context inline_context;
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};
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#endif /* MJIT_C_H */
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