Yet Another Ruby JIT!

Renaming uJIT to YJIT. AKA s/ujit/yjit/g.

1 files changed, 47 insertions, 0 deletions

diff --git a/yjit_codegen.h b/yjit_codegen.h
new file mode 100644
index 0000000000..f5be7c4de6
--- /dev/null
+++ b/yjit_codegen.h
@@ -0,0 +1,47 @@
+#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;
+
+    // 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();
+
+void yjit_gen_block(ctx_t* ctx, block_t* block, rb_execution_context_t* ec);
+
+void yjit_init_codegen(void);
+
+#endif // #ifndef YJIT_CODEGEN_H