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ruby--ruby/yjit_codegen.h
Aaron Patterson 05b5a7f011 Add a guard that we start executing on the first PC
Methods with optional parameters don't always start executing at the
first PC, but we compile all methods assuming that they do.  This commit
adds a guard to ensure that we're actually starting at the first PC for
methods with optional params
2021-10-20 18:19:37 -04:00

50 lines
1.1 KiB
C

#ifndef YJIT_CODEGEN_H
#define YJIT_CODEGEN_H 1
#include "stddef.h"
#include "yjit_core.h"
// Code blocks we generate code into
extern codeblock_t *cb;
extern codeblock_t *ocb;
// Code generation state
typedef struct JITState
{
// Block version being compiled
block_t* block;
// Instruction sequence this is associated with
const rb_iseq_t *iseq;
// Index of the current instruction being compiled
uint32_t insn_idx;
// Opcode for the instruction being compiled
int opcode;
// PC of the instruction being compiled
VALUE *pc;
// Execution context when compilation started
// This allows us to peek at run-time values
rb_execution_context_t* ec;
} jitstate_t;
typedef enum codegen_status {
YJIT_END_BLOCK,
YJIT_KEEP_COMPILING,
YJIT_CANT_COMPILE
} codegen_status_t;
// Code generation function signature
typedef codegen_status_t (*codegen_fn)(jitstate_t* jit, ctx_t* ctx);
uint8_t* yjit_entry_prologue(const rb_iseq_t* iseq);
void yjit_gen_block(block_t* block, rb_execution_context_t* ec);
void yjit_init_codegen(void);
#endif // #ifndef YJIT_CODEGEN_H