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* Abstract out pointer hash to hashrot(). Tune hash constants.Mike Pall2010-07-211-10/+1
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* Add weak guards. Emit TNEW/TDUP with a guard bit.Mike Pall2010-05-081-2/+2
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* Treat the tag of a TValue as unsigned everywhere.Mike Pall2010-04-251-1/+1
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* Make metamethod names proper GC roots.Mike Pall2010-04-251-7/+5
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* Simplify management of current trace. Drop lazy save.Mike Pall2010-04-251-6/+6
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* Turn traces into true GC objects (GCtrace).Mike Pall2010-04-251-7/+6
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* No longer let the GC replace dead keys with the LJ_TDEADKEY tag.Mike Pall2010-04-211-2/+7
| | | | | | | | Important: this changes the semantics of the write barrier! Carefully read the big comment block in lj_obj.h This helps HREFK key slot specialization and allows safely hoisting HREF/HREFK across GC steps, too (fix for a barely reproducible bug). Dead keys are only removed during a table resize (as before).
* Replace on-trace GC frame syncing with interpreter exit.Mike Pall2010-04-191-7/+16
| | | | | | | Need to sync GC objects to stack only during atomic GC phase. Need to setup a proper frame structure only for calling finalizers. Force an exit to the interpreter and let it handle the uncommon cases. Finally solves the "NYI: gcstep sync with frames" issue.
* Generate EQ(HREF, niltv) for load path, too (better CSE).Mike Pall2010-03-281-1/+7
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* Fix precondition check for NEWREF.Mike Pall2010-03-281-2/+2
| | | | A check for nil value is not enough. Must check for ptr == niltv.
* Avoid snapshots for returns to known callers.Mike Pall2010-03-211-2/+2
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* Add array bounds check elimination (-Oabc, on by default).Mike Pall2010-03-151-1/+39
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* Reorganize scalar evolution analysis.Mike Pall2010-03-151-7/+20
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* Fix handling of bad argument types in recorder.Mike Pall2010-03-091-2/+3
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* Fix recording of getmetatable() for non-tables.Mike Pall2010-03-091-3/+5
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* Avoid tracing the nil return case of tonumber().Mike Pall2010-03-091-1/+5
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* Fix assertion in rec_check_slots.Mike Pall2010-03-071-1/+1
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* Fix 64 bit conversion warning.Mike Pall2010-03-031-1/+1
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* Implement down-recursion.Mike Pall2010-03-011-2/+39
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* Fix 64 bit conversion warnings.Mike Pall2010-02-241-3/+3
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* Fix 64 bit portability problem in rec_ret().Mike Pall2010-02-241-1/+1
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* Randomize penalties for aborts and add blacklisting.Mike Pall2010-02-231-3/+3
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* Ensure function and all args have a reference for call recording.Mike Pall2010-02-221-11/+28
| | | | In practice this is only needed after a return to a lower frame.
* Fix TRef for (dummy) 2nd arg of __len metamethod.Mike Pall2010-02-221-1/+1
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* Back out history buffer for tailcall counts.Mike Pall2010-02-221-4/+2
| | | | Use an aggregate counter independent of frame depth.
* Add region selection for up-recursion and tail-recursion.Mike Pall2010-02-221-2/+4
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* Allow linking to already compiled functions.Mike Pall2010-02-181-7/+24
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* Use a limited history buffer for tailcall counts while recording.Mike Pall2010-02-181-13/+16
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* Update trace recorder infrastructure for hot calls.Mike Pall2010-02-181-9/+10
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* Drop obsolete shadow frame link stack.Mike Pall2010-02-181-35/+4
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* Add more assertions to compare the recorder state and the VM state.Mike Pall2010-02-181-4/+31
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* Clear frame gaps in recorder to avoid resurrecting previous refs.Mike Pall2010-02-181-2/+6
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* Split CALL/FUNC recording.Mike Pall2010-02-161-444/+447
| | | | | | | | Record __call resolving and specialization for CALL* bytecodes. Record argument adjustment and fast functions for FUNC* bytecodes. Avoids all pending/immediate decisions for chained fast functions. Cleaner semantics for pcall(), xpcall() and __tostring metamethod. Prerequisite to drop the shadow frame link stack again.
* Add missing FORI coercions in recorder.Mike Pall2010-02-151-4/+13
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* Improve FOR loop const specialization and integerness checks.Mike Pall2010-02-151-29/+61
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* Major redesign of function call handling.Mike Pall2010-02-131-7/+1
| | | | | | | | | | | Drop call gates. Use function headers, dispatched like bytecodes. Emit BC_FUNCF/BC_FUNCV bytecode at PC 0 for all Lua functions. C functions and ASM fast functions get extra bytecodes. Modify internal calling convention: new base in BASE (formerly in RA). Can now use better C function wrapper semantics (dynamic on/off). Prerequisite for call hooks with zero-overhead if disabled. Prerequisite for compiling recursive calls. Prerequisite for efficient 32/64 bit prototype guards.
* 32/64 bit memory ref cleanup, part 1: GCproto ->bc and ->k.Mike Pall2010-02-051-7/+7
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* Add shadow frame link stack for trace recorder.Mike Pall2010-02-041-8/+55
| | | | | Simplifies snapshots. Prerequisite for pre-call snapshots. Increases consistency for fast function calls, too.
* Fix unroll limit checks and frame depth adjustment for pcall.Mike Pall2010-02-031-13/+11
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* Clean up frame depth checks and loop detection.Mike Pall2010-02-031-5/+9
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* Another loop formation test must check for return to lower frame.Mike Pall2010-02-031-1/+1
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* Loop formation test must check for return to lower frame.Mike Pall2010-01-291-1/+2
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* Compile return to lower frame. Only for Lua frames right now.Mike Pall2010-01-291-36/+53
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* Followup fix: set maxslot for continuation return.Mike Pall2010-01-281-0/+1
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* Drop obsolete frame shrinking after continuation return.Mike Pall2010-01-281-4/+1
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* Fix recording of metamethod result adjustment.Mike Pall2010-01-281-1/+1
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* Eliminate IR_FRAME. Replace with KGC and TRef/SnapEntry flags.Mike Pall2010-01-271-34/+20
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* Add frame and continuation flags to TRef and SnapEntry.Mike Pall2010-01-271-6/+7
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* Add missing check for return to lower frame.Mike Pall2010-01-271-1/+2
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* Compress snapshots using a simple, extensible 1D-compression.Mike Pall2010-01-261-48/+49
| | | | | | Typically reduces storage overhead for snapshot maps by 60%. The extensible format is a prerequisite for the next redesign steps: Eliminate IR_FRAME and implement return-to-lower-frame.
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