Correct handling of 'luaV_execute' invocations

The previous stackless implementations marked all 'luaV_execute'
invocations as fresh. However, re-entering 'luaV_execute' when
resuming a coroutine should not be a fresh invocation. (It works
because 'unroll' called 'luaV_execute' for each call entry, but
it was slower than letting 'luaV_execute' finish all non-fresh
invocations.)

1 files changed, 8 insertions, 7 deletions

diff --git a/lstate.h b/lstate.h
index a05db376..5573898c 100644
--- a/lstate.h
+++ b/lstate.h
@@ -183,14 +183,15 @@ typedef struct CallInfo {
 */
 #define CIST_OAH        (1<<0)  /* original value of 'allowhook' */
 #define CIST_C          (1<<1)  /* call is running a C function */
-#define CIST_HOOKED     (1<<2)  /* call is running a debug hook */
-#define CIST_YPCALL     (1<<3)  /* call is a yieldable protected call */
-#define CIST_TAIL       (1<<4)  /* call was tail called */
-#define CIST_HOOKYIELD  (1<<5)  /* last hook called yielded */
-#define CIST_FIN        (1<<6)  /* call is running a finalizer */
-#define CIST_TRAN       (1<<7)  /* 'ci' has transfer information */
+#define CIST_FRESH      (1<<2)  /* call is on a fresh "luaV_execute" frame */
+#define CIST_HOOKED     (1<<3)  /* call is running a debug hook */
+#define CIST_YPCALL     (1<<4)  /* call is a yieldable protected call */
+#define CIST_TAIL       (1<<5)  /* call was tail called */
+#define CIST_HOOKYIELD  (1<<6)  /* last hook called yielded */
+#define CIST_FIN        (1<<7)  /* call is running a finalizer */
+#define CIST_TRAN       (1<<8)  /* 'ci' has transfer information */
 #if defined(LUA_COMPAT_LT_LE)
-#define CIST_LEQ        (1<<8)  /* using __lt for __le */
+#define CIST_LEQ        (1<<9)  /* using __lt for __le */
 #endif
 
 /* active function is a Lua function */