Don't eliminate SLOAD restores across RETF.

Move restore-elimination logic into snapshot_slots().
2010-02-23 03:08:49 +01:00
parent f751cd1d6f
commit c1362dcac9
3 changed files with 13 additions and 6 deletions
--- a/src/lj_jit.h
+++ b/src/lj_jit.h
@@ -125,6 +125,7 @@ typedef uint32_t SnapEntry;

 #define SNAP_FRAME		0x010000	/* Frame slot. */
 #define SNAP_CONT		0x020000	/* Continuation slot. */
+#define SNAP_NORESTORE		0x040000	/* No need to restore slot. */
 LJ_STATIC_ASSERT(SNAP_FRAME == TREF_FRAME);
 LJ_STATIC_ASSERT(SNAP_CONT == TREF_CONT);