Add shadow frame link stack for trace recorder.

Simplifies snapshots. Prerequisite for pre-call snapshots. Increases consistency for fast function calls, too.
2010-02-04 03:08:29 +01:00
parent 78f5e2ffd3
commit 7256690364
6 changed files with 82 additions and 56 deletions
--- a/src/lj_def.h
+++ b/src/lj_def.h
@@ -66,6 +66,7 @@ typedef unsigned __int32 uintptr_t;

 /* JIT compiler limits. */
 #define LJ_MAX_JSLOTS	250		/* Max. # of stack slots for a trace. */
+#define LJ_MAX_JFRAME	20		/* Max. # of frames for a trace. */
 #define LJ_MAX_PHI	32		/* Max. # of PHIs for a loop. */
 #define LJ_MAX_EXITSTUBGR	8	/* Max. # of exit stub groups. */