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Add frame and continuation flags to TRef and SnapEntry.

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This commit is contained in:
Mike Pall
2010-01-27 02:17:56 +01:00
parent 05d67cf566
commit d216cdb2b9
5 changed files with 56 additions and 38 deletions
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25
src/lj_ir.h
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@@ -422,18 +422,29 @@ enum {
#define irref_isk(ref) ((ref) < REF_BIAS)
/* Tagged IR references. */
/* Tagged IR references (32 bit).
**
** +-------+-------+---------------+
** | irt | flags | ref |
** +-------+-------+---------------+
**
** The tag holds a copy of the IRType and speeds up IR type checks.
*/
typedef uint32_t TRef;
#define TREF(ref, t) (cast(TRef, (ref) + ((t)<<16)))
#define TREF_REFMASK 0x0000ffff
#define TREF_FRAME 0x00010000
#define TREF_CONT 0x00020000
#define tref_ref(tr) (cast(IRRef1, (tr)))
#define tref_t(tr) (cast(IRType, (tr)>>16))
#define tref_type(tr) (cast(IRType, ((tr)>>16) & IRT_TYPE))
#define TREF(ref, t) ((TRef)((ref) + ((t)<<24)))
#define tref_ref(tr) ((IRRef1)(tr))
#define tref_t(tr) ((IRType)((tr)>>24))
#define tref_type(tr) ((IRType)(((tr)>>24) & IRT_TYPE))
#define tref_typerange(tr, first, last) \
((((tr)>>16) & IRT_TYPE) - (TRef)(first) <= (TRef)(last-first))
((((tr)>>24) & IRT_TYPE) - (TRef)(first) <= (TRef)(last-first))
#define tref_istype(tr, t) (((tr) & (IRT_TYPE<<16)) == ((t)<<16))
#define tref_istype(tr, t) (((tr) & (IRT_TYPE<<24)) == ((t)<<24))
#define tref_isnil(tr) (tref_istype((tr), IRT_NIL))
#define tref_isfalse(tr) (tref_istype((tr), IRT_FALSE))
#define tref_istrue(tr) (tref_istype((tr), IRT_TRUE))