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

1 files changed, 1 insertions, 1 deletions

diff --git a/yjit_codegen.h b/yjit_codegen.h
index 683765319e..7041a5a0a5 100644
--- a/yjit_codegen.h
+++ b/yjit_codegen.h
@@ -41,7 +41,7 @@ typedef enum codegen_status {
 // Code generation function signature
 typedef codegen_status_t (*codegen_fn)(jitstate_t* jit, ctx_t* ctx);
 
-uint8_t* yjit_entry_prologue();
+uint8_t* yjit_entry_prologue(const rb_iseq_t* iseq);
 
 void yjit_gen_block(block_t* block, rb_execution_context_t* ec);