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-rw-r--r--mjit_c.h97
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diff --git a/mjit_c.h b/mjit_c.h
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--- a/mjit_c.h
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-// This file is parsed by tool/mjit/generate.rb to generate mjit_c.rb
-#ifndef MJIT_C_H
-#define MJIT_C_H
-
-#include "ruby/internal/config.h"
-#include "vm_core.h"
-#include "vm_callinfo.h"
-#include "builtin.h"
-#include "ccan/list/list.h"
-#include "mjit.h"
-#include "shape.h"
-
-// Macros to check if a position is already compiled using compile_status.stack_size_for_pos
-#define NOT_COMPILED_STACK_SIZE -1
-#define ALREADY_COMPILED_P(status, pos) (status->stack_size_for_pos[pos] != NOT_COMPILED_STACK_SIZE)
-
-// Linked list of struct rb_mjit_unit.
-struct rb_mjit_unit_list {
- struct ccan_list_head head;
- int length; // the list length
-};
-
-enum rb_mjit_unit_type {
- // Single-ISEQ unit for unit_queue
- MJIT_UNIT_ISEQ = 0,
- // Multi-ISEQ unit for mjit_batch
- MJIT_UNIT_BATCH = 1,
- // All-ISEQ unit for mjit_compact
- MJIT_UNIT_COMPACT = 2,
-};
-
-// The unit structure that holds metadata of ISeq for MJIT.
-// TODO: Use different structs for ISEQ and BATCH/COMPACT
-struct rb_mjit_unit {
- struct ccan_list_node unode;
- // Unique order number of unit.
- int id;
- // Type of this unit
- enum rb_mjit_unit_type type;
-
- /* MJIT_UNIT_ISEQ */
- // ISEQ for a non-batch unit
- rb_iseq_t *iseq;
- // Only used by unload_units. Flag to check this unit is currently on stack or not.
- bool used_code_p;
- // mjit_compile's optimization switches
- struct rb_mjit_compile_info compile_info;
- // captured CC values, they should be marked with iseq.
- const struct rb_callcache **cc_entries;
- // ISEQ_BODY(iseq)->ci_size + ones of inlined iseqs
- unsigned int cc_entries_size;
-
- /* MJIT_UNIT_BATCH, MJIT_UNIT_COMPACT */
- // Dlopen handle of the loaded object file.
- void *handle;
- // Units compacted by this batch
- struct rb_mjit_unit_list units; // MJIT_UNIT_BATCH only
-};
-
-// Storage to keep data which is consistent in each conditional branch.
-// This is created and used for one `compile_insns` call and its values
-// should be copied for extra `compile_insns` call.
-struct compile_branch {
- unsigned int stack_size; // this simulates sp (stack pointer) of YARV
- bool finish_p; // if true, compilation in this branch should stop and let another branch to be compiled
-};
-
-// For propagating information needed for lazily pushing a frame.
-struct inlined_call_context {
- int orig_argc; // ci->orig_argc
- VALUE me; // vm_cc_cme(cc)
- int param_size; // def_iseq_ptr(vm_cc_cme(cc)->def)->body->param.size
- int local_size; // def_iseq_ptr(vm_cc_cme(cc)->def)->body->local_table_size
-};
-
-// Storage to keep compiler's status. This should have information
-// which is global during one `mjit_compile` call. Ones conditional
-// in each branch should be stored in `compile_branch`.
-struct compile_status {
- bool success; // has true if compilation has had no issue
- int *stack_size_for_pos; // stack_size_for_pos[pos] has stack size for the position (otherwise -1)
- // If true, JIT-ed code will use local variables to store pushed values instead of
- // using VM's stack and moving stack pointer.
- bool local_stack_p;
- // Index of call cache entries captured to compiled_iseq to be marked on GC
- int cc_entries_index;
- // A pointer to root (i.e. not inlined) iseq being compiled.
- const struct rb_iseq_constant_body *compiled_iseq;
- int compiled_id; // Just a copy of compiled_iseq->jit_unit->id
- // Mutated optimization levels
- struct rb_mjit_compile_info *compile_info;
- // If `inlined_iseqs[pos]` is not NULL, `mjit_compile_body` tries to inline ISeq there.
- const struct rb_iseq_constant_body **inlined_iseqs;
- struct inlined_call_context inline_context;
-};
-
-#endif /* MJIT_C_H */