shaver@mozilla.org
3a4c348313
Trace JSOP_THIS and JSOP_THISPROP.
...
Rename getprop to get_prop, just because.
Extract COMPUTE_THIS to jsinterp.h as JS_COMPUTE_THIS for reuse in tracer.
2008-07-15 21:37:00 -04:00
Andreas Gal
3aeb53f580
Add a few consts to char* pointers to pacify gcc 4.2.
2008-07-15 16:04:08 -07:00
shaver@mozilla.org
3693365174
rename getpropfromval, it burns mine eyes
2008-07-15 18:29:42 -04:00
Andreas Gal
1b783425aa
Assign blame where blame is due.
2008-07-15 15:05:16 -07:00
Brendan Eich
3ccdb62685
Propagate error exceptions from TraceRecorder ctor; fiddle/trim space.
2008-07-15 10:26:15 -07:00
shaver@mozilla.org
7d7ece76a8
GETVARPROP, GETARGPROP, GETXPROP
2008-07-15 13:17:51 -04:00
Andreas Gal
5848fd6694
Generate a list of interned global slots (gslots) when we process the tree header. This list is then used whenever we iterate over the native frame. This is faster and safer than looking up properties in the global object every time.
2008-07-15 01:53:39 -07:00
Andreas Gal
84608819b9
Remove state exposing accessor functions from recorder and instead hand in that state via the constructor into ExitFilter.
2008-07-15 01:27:14 -07:00
Andreas Gal
1693476391
Guard in FragmentInfo on the shape of the global object. Don't check for the shape of the global object on the trace.
2008-07-15 01:08:13 -07:00
Andreas Gal
bac6ed12f4
Store list of interned global slots in struct FragmentInfo
2008-07-15 01:03:49 -07:00
Andreas Gal
9f761173f0
Added a callstack that will track the pc of the call that caused a function call to be inlined. This is necessary to recover from deep side exits inside inline functions. The callstack is subject to store elimination, so unnecessary stores to the stack will go dead automatically during compilation (i.e. if we inline a function that doesn't have side exits.)
2008-07-14 19:12:50 -07:00
Andreas Gal
e59427d0f7
Use JS_GetGlobalForObject to get the global object. Walking back the call chain is not equivalent and not safe.
2008-07-14 16:40:38 -07:00
Andreas Gal
30c7f0493e
Reserve space for every global property that the current script has an atom for instead of trying to rely on ngvars.
2008-07-13 21:14:34 -07:00
shaver@mozilla.org
8ffe777b5a
Incomplete stab at CALLPROP, added ABORT_TRACE for better diagnostics, make math_sin non-static in preparation for specializing call.
2008-07-11 20:59:10 -04:00
Brendan Eich
a17263a036
1. Fix !JS_THREADED_INTERP bugs in BRANCH and recording switch case generation.
...
2. Rename TraceRecorder op methods to record_JSOP_xxx to avoid shadowing JSOP_*
enumerators used inside jsopcode.h macros -- death to ::JSOP_*!
3. Added atoms TraceRecorder member for giant literal pool scripts.
4. Condition assert in TraceRecorder::test_property_cache_direct_slot to avoid
false positive when executing function code accessing a global.
2008-07-10 21:55:09 -07:00
Andreas Gal
4e34cfc559
IFEQ and IFNE are identical for us. We just expect the same boolean on the stack and side exit if not.
2008-07-10 20:35:19 -07:00
Andreas Gal
ca4e6419ee
shaver's favorite operating system of choice doesn't like templates, so de-template tracker since we use it with LInsp only anyway.
2008-07-10 18:42:04 -07:00
shaver@mozilla.org
6a5deaf550
Decouple jscntxt.h from jstracer.h so that xpconnect doesn't try to include all of
...
nanojit.
2008-07-10 17:29:16 -04:00
shaver@mozilla.org
2a0f9b6245
can't have zero-sized arrays in ISO C++, says gcc
2008-07-10 09:29:42 -04:00
Brendan Eich
20a5a9ef31
1. Fix inc to address the right result stack slot; 2. Require via assertions that the interpreter memoize implicit gvars (patch to do that next; bitwise-and will assert until that lands).
2008-07-09 15:15:32 -07:00
Brendan Eich
d8cf234b33
Memoize global name gets and sets as if they refer to a declared gvar.
2008-07-09 11:42:31 -07:00
Andreas Gal
05554d05b3
Stricter typing of the tracker code path which now only accepts jsval as suggested by Brendan.
2008-07-09 00:29:23 -07:00
Andreas Gal
d6b834b98a
Move builtin[] table in jsbuiltin.cpp
2008-07-08 23:48:06 -07:00
David Anderson
fcf8410125
Builds against latest nanojit; merged VMSideExitInfo into SideExit
2008-07-08 17:16:51 -07:00
Andreas Gal
4550dd77f0
Introduce a generic stack frame walking macro. This eliminates the 6 (hg pull) redundant blocks of code that all walked the stack in 6 different ways, each with their individuals quirks.
2008-07-08 16:29:23 -07:00
Andreas Gal
56397d3c0e
Attempt at cleaning up the typemap/stack frame iteration code.
2008-07-07 18:35:38 -07:00
Andreas Gal
0fe5682c00
Make gvar ops use the global varobj values we unbox onto the native stack. The stack offset handling needs more work.
2008-07-07 17:21:54 -07:00
Andreas Gal
1d36b97516
Unbox global variables onto the native stack and re-box them. This has certain synchronization implications but will make top-level scripts quite a bit faster.
2008-07-07 15:15:56 -07:00
Brendan Eich
175ce14f5b
Indentation and comment wrapping (at 79, 99 looks too long and most comments still avoid going past 80+/-).
2008-07-07 02:55:03 -07:00
Brendan Eich
6d65efee60
Use jsopcode.tbl for tracer JSOP_* method decls; trim trailing whitespace.
2008-07-07 02:21:04 -07:00
Andreas Gal
a38e8a96c3
Add support to demote stores of constants that are currently represented as float but are really integers. bitwise.js is now compiled complete fp-casts free.
2008-07-07 01:05:53 -07:00
Andreas Gal
efa3309778
Demote floating point comparisons even if one side is constant (bug in nanojit, filed as #443884 against tamarin). Also demote add/sub/mul using the integer overflow detection side exit code that Ed adopted upstream. Tight loops (bitwise) are not emitted completely as integer code after the initial compilation using doubles triggered a speculative demotion of the context slots.
2008-07-07 00:43:40 -07:00
Andreas Gal
8ce0de1ad7
Sink type conversions into the side exit by updating the map and seeing though the cast in the store (in ExitFilter). Add a whole bunch of asserts on the varios speculative type states to make sure we get the state machine right. Import speculated integer values as integers into the trace (indicate in entry map).
2008-07-07 00:10:22 -07:00
Andreas Gal
34c2283213
Added loop-tail driven context slot type demotion. Without all the buzzwords, what this essentially means is that we detect if the last value that the trace leaves in a slot (which is the value that flows along the backedge back to the loop header) is known to originate from an integer value via i2f, we flag the slot as type integer and recompile the trace. We do this where type stability is certain (result of an and, i.e.) or where its very likely (++operator). If the speculation fails, the same analysis flags the slot as blocked, which means it will always be double. The hope is that this analysis converges quickly (1-2 recompilations tops).
2008-07-06 22:35:19 -07:00
Andreas Gal
efee2381b5
Make typemap uint8_t and fix order of arguments in call to BoxDouble.
2008-07-06 20:25:49 -07:00
Andreas Gal
aeeff83beb
Move the type level from int/double to number. All traces start out as double in all slots, and denote and promote to/from int as needed. The FuncFilter optimizes on-trace casting and elininates redundant f->i-> chains. More optimization needed on this of course, and this code is now a bit slower than the previous integer-register use. However, this does solve the q += 2.5 issues. The heap access code does not properly cast yet and is likely unstable.
2008-07-06 15:55:04 -07:00
shaver@mozilla.org
b28afaa80d
Trace GETGVAR and INCGVAR, though not yet correctly.
2008-07-06 16:59:59 -04:00
Andreas Gal
d30b7d1c8a
Add unary and binary helpers that automatically demote and promote when dealing with integer operations (not used yet, need loop typemap peeling in place first.)
2008-07-06 13:16:34 -07:00
Andreas Gal
5816dee707
Fix template, should use typename, not class.
2008-07-06 12:03:51 -07:00
Andreas Gal
1343901446
Add ExitFilter, which builds side exit typemaps for us. This had to be moved into a filter, because this has to happen after we eliminate redundant i2f-f2i chains as we can sink those into the side exit by simply storing the unpromoted/undemoted value and just flip the type in the exit map.
2008-07-06 11:48:41 -07:00
Andreas Gal
84ec537a0c
Merge.
2008-07-06 11:19:06 -07:00
Andreas Gal
9501bcd749
Added doubleToUint32 builtin and make tracker a template.
2008-07-06 10:59:55 -07:00
shaver@mozilla.org
d881a494aa
fix builtin_UnboxInt32 signature and name shape_ins for debugging
2008-07-06 13:58:59 -04:00
shaver@mozilla.org
45b3826103
Trace JSOP_NAME, and refactor out jsval unboxing.
2008-07-06 13:38:55 -04:00
shaver@mozilla.org
06a27ca367
begin on JSOP_NAME, refactor stobj_get_slot to chain better
2008-07-06 12:15:55 -04:00
Andreas Gal
100f4ea5e0
Added support for semi-stable loop variables. Compiling for(...) q += 2.5; is ridiculously difficult because it flip-flops between int and double. Add support to promote integer values to doubles at the loop tail if at loop entry we expect a double. Since this isn't possible the other way around, we have to get luck that we catch a path into the loop where q is already double. For this we add 3 trigger points (10, 13, 37). We will try three times to record a trace at those iteration counts of a loop. If none succeed the loop is blacklisted. This probably needs more tuning down the road.
2008-07-05 23:21:53 -07:00
Andreas Gal
41efb6c488
Merge and rename jsIf to ifop.
2008-07-05 22:23:34 -07:00
Andreas Gal
0b28897ad3
Add helpers for i->f and f->i conversion. The f->i path goes via builtin calls.
2008-07-05 22:04:58 -07:00
shaver@mozilla.org
a268883f3c
Implement JSOP_IFEQ, JSOP_IFNE, JSOP_DUP, JSOP_DUP2.
2008-07-05 23:47:24 -04:00
Andreas Gal
075e3f00a6
Add casting for objects and cleanup casting code.
2008-07-05 20:30:11 -07:00
Andreas Gal
0245a6ba7c
Believe it or not NEG can actually overflow the int32 range, so add an overflow bailout. This will only trap for -0x80000000.
2008-07-05 19:25:38 -07:00
Andreas Gal
48e459ba73
Added blacklisting of recording points where we failed to complete a trace (overly aggressive at this point, needs tuning, we want to try several times for each point.)
2008-07-05 19:15:00 -07:00
Andreas Gal
cf8e2a555b
Added boolean boxing/unboxing code.
2008-07-05 18:34:41 -07:00
Andreas Gal
888d2f9aee
Add support for some misc opcodes including binary and arithmetic and/or/not.
2008-07-05 17:26:00 -07:00
Andreas Gal
19152ffb1f
Signal error from the boxing/unboxing using magic cookies since gcc seems to very seriously object to the use of uint64 return values during a fastcall (horribly inefficient code).
2008-07-05 16:28:03 -07:00
Andreas Gal
d765c3ead2
Finish SETELEM for int and double values.
2008-07-05 14:00:32 -07:00
Andreas Gal
1e9c9451e0
Merge unboxing code into GETELEM code.
2008-07-05 13:44:48 -07:00
Andreas Gal
503bf13dac
Merge.
2008-07-05 11:46:08 -07:00
Andreas Gal
f9981c8870
Added box_int_jsval for the store path. Use only there.
2008-07-05 11:45:53 -07:00
Andreas Gal
ba7e66df92
Code generators to access object slots and native code callouts (builtins) for boxing doubles and ints. Ints have to be boxed through a native code helper on read and write (BoxInt32 and UnboxInt32), because we sometimes have to cast internally to double to store 32-bit values. We don't want a separate trace in this case, so we have to do this inline in a helper. Also a couple of modifications to shaver's code. Always make sure to check types (JSOP_NEG).
2008-07-05 11:35:55 -07:00
Brendan Eich
ab0e34e2ae
Try to keep 64-bit portability via size_t instead of unsigned, jsuword for uintptr instead of long, etc.
2008-07-05 11:18:26 -07:00
shaver@mozilla.org
de59f88d9c
Beginning of SETELEM/GETELEM tracing for dense arrays. Needs computed-offset
...
insLoad before they'll work.
2008-07-05 09:47:59 -04:00
Andreas Gal
2df2214a9e
Introduce asInt and asDouble to check for the type of values based on the actual value since some 32-bit integers hide out in doubles.
2008-07-04 23:53:29 -07:00
Andreas Gal
e35d351b28
Added support for SET_VAR again. bitwise.js working now.
2008-07-04 15:21:56 -07:00
Andreas Gal
ab1dc289ba
Fixed some stack handling and trace activation issues. We can run trace.js again.
2008-07-04 15:07:05 -07:00
Andreas Gal
5e9ca6ef0e
Cleanup of stack handling.
2008-07-04 13:23:42 -07:00
Andreas Gal
9b8f5f75a8
Added back support for the instructions required to compile trace.js.
2008-07-04 03:06:18 -07:00
Andreas Gal
1503932551
Properly switch tracer on and off depending on loopEdge and abort signaling from trace recorder recording functions.
2008-07-04 01:10:57 -07:00
Andreas Gal
efb72df02a
Re-integrate trace recording and trace activation infrastructure. Model more closely after Tamarin.
2008-07-04 00:51:30 -07:00
Andreas Gal
731614bfe9
Create a stub for each opcode in TraceRecorder and invoke them from the stubs that are pointed to by the recorder dispatch-table.
2008-07-03 23:57:57 -07:00
Andreas Gal
62d0c7bbfb
Switch back to mozilla-central jsinter.cpp. Lets try a different approach to attach the tracer to the interpreter.
2008-07-03 22:08:13 -07:00
Andreas Gal
9a1bbdcdc6
Fix unnecessary type prefix (reported by bc, doesn't pass gcc 4.2.3)
2008-07-03 17:02:19 -07:00
Andreas Gal
2cd7b6993b
VOIDs hang out in the BOOLEAN value space, so we have to treat them like a boolean on the trace. For ValuetoECMAInt32 all special boolean values except TRUE produce 0, and TRUE produces 1. Use a conditional move to implement this.
2008-07-02 19:11:07 -07:00
Andreas Gal
b137f2da3b
Introduce a VMSideExitInfo structure (holds the exit typemap only for now).
2008-07-02 18:06:24 -07:00
Andreas Gal
523ba92b3d
Use fragmento to track fragments and add proper trace activiation code.
2008-07-02 17:19:07 -07:00
Andreas Gal
6f3af33edf
Add type stability check for loop variables. Rename readstack to import.
2008-07-02 15:14:43 -07:00
Andreas Gal
e70272bfab
Removed attempt to imply ints into doubles on the fly. This can't work. Use proper float loads where needed and add some initial code for builtin functions.
2008-07-02 14:38:12 -07:00
Andreas Gal
f3fba20c9c
Create type maps during trace entry and in each side exit and store them in the LIR using LIR_skip. Use these type maps during trace entry and exit.
2008-07-01 19:43:10 -07:00
Andreas Gal
39891951f4
Merge.
2008-07-01 13:36:33 -07:00
shaver@mozilla.org
50d599cb99
label arg/var/stack/sp/state for easier trace-reading
2008-07-01 08:06:02 -04:00
Andreas Gal
d3e7a57a68
Fix deallocation bug in the recorder. We will have to lift more code Tamarin's Interpreter to stabilize the recording.
2008-07-01 02:37:07 -07:00
Andreas Gal
84274f1b33
Save the VM registers into markRegs at opcode entry and restore that state when ending or aborting recording. The same info is pushed into sideexit and used by guards. With this change we can eliminate the hack in MONITOR_BRANCH that had to adjust the stack pointer depending on the opcode type, and it also allows us to trace through the recently added boolean guard opcode fusing. This improves trace code quality, since only the pre-conditional check state is saved. The guard restores into that state, so the trace code doesn't have to emit the value of the conditional evaluation onto the stack, saving a handful ops.
2008-06-30 18:31:29 -07:00
Andreas Gal
87396e1870
Rework memory management, don't leak memory in the filter pipeline.
2008-06-30 18:08:32 -07:00
Andreas Gal
19b4bcdc69
Save the side exit state at entry in to the opcode (since we want to restart ops) and enable store filter.
2008-06-30 17:12:52 -07:00
Andreas Gal
5d1d997c9d
Housekeeping (add comments, removed some dead code.)
2008-06-30 09:36:10 -07:00
Andreas Gal
d8d25140f9
Mockup of trace execution. Speedup is 10x for a tight loop. Keep in mind that this is a hack and the trace code is not optimized yet.
2008-06-29 23:02:22 -07:00
Andreas Gal
b1e24b8c98
Execute trace code. Boxing back the side exit state is not handled yet.
2008-06-29 20:56:06 -07:00
Andreas Gal
e267cb120c
Fix native frame addressing (reported by vlad.)
2008-06-29 17:17:39 -07:00
Andreas Gal
253b2572b2
Initialize jump table when side-entering the interpreter. Keep track of cx and sp directly in the recorder instead of going through the tracker.
2008-06-29 13:53:40 -07:00
Andreas Gal
ef71223de2
Remember JSContext instead of trying to keep track of frame pointer.
2008-06-28 18:47:12 -07:00
Andreas Gal
628a1f6985
Cleanup trace abort/end code.
2008-06-28 18:19:21 -07:00
Andreas Gal
ba35b66f90
Make internal form of nativeFrameSize private.
2008-06-28 17:22:08 -07:00
Andreas Gal
6df975a5b5
Rewritten frame management. Use cx->fp->regs chain instead of direct passing of those structures.
2008-06-28 17:14:06 -07:00
Andreas Gal
552425ee07
Hook up pc and sp to the tracer in order to generate proper PC/SP adjustment code.
2008-06-28 11:00:18 -07:00
Andreas Gal
1f37ae3e62
Small cleanups and licensing blurb housekeeping.
2008-06-28 09:58:15 -07:00
shaver@mozilla.org
4fc71515e0
Add guards for XML objects, and some tracer bits to accommodate them.
2008-06-27 23:58:06 -04:00
Andreas Gal
e5d4f398ef
Merge.
2008-06-27 18:09:33 -07:00
Andreas Gal
40f1a90a78
Move recorder initialization into TraceRecorder and encapsulate its state.
2008-06-27 18:06:50 -07:00
Andreas Gal
2c370239e5
Add a way to calculate the current size of the native frame.
2008-06-27 16:24:17 -07:00
shaver@mozilla.org
06500a1a50
merge
2008-06-27 12:01:28 -04:00
shaver@mozilla.org
af19dd5627
rename ENABLE_TRACER to TRACING_ENABLED and explicitly parameterize on cx
2008-06-27 11:41:59 -04:00
Andreas Gal
afd5f3b1e3
Clarified argument names in guard code and explain better why we guard for overflow the way we do.
2008-06-27 07:28:10 -07:00
Andreas Gal
e59076860a
Instead of guarding on null -> boolean conversion just emit a null compare and use the boolean result.
2008-06-27 06:53:10 -07:00
Andreas Gal
0c5757a21f
Add a new option -j to enable the JIT. The default is off so we can easily benchmark the overhead without the tracer.
2008-06-27 00:22:53 -08:00
Andreas Gal
a21ca6a788
Prepare LIR_ov to be used as soon Ed adds it and add a few comments that explain how overflow is handled.
2008-06-26 23:34:50 -08:00
Andreas Gal
49fe7a95eb
More cleanup and code move into TraceRecorder and prepare for LIR_ov.
2008-06-26 23:22:16 -08:00
Andreas Gal
f357ff14f0
Move the recorder functionality into TraceRecorder to unclutter trace inlines.
2008-06-26 21:58:57 -08:00
Andreas Gal
0c98250a90
Move set/get into recorder and introduce init.
2008-06-26 21:41:10 -08:00
Andreas Gal
431b7b810a
Moved loading context slots into the recorder (more to follow).
2008-06-26 21:33:33 -08:00
Andreas Gal
693ee7f0cc
Turn macros into inline functions and start prepatations for inlining function calls.
2008-06-26 21:19:11 -08:00
Andreas Gal
c7bab6721b
Drop JS prefix from classes related to traceing.
2008-06-26 19:49:04 -08:00
Andreas Gal
ad5ceed9cd
Merge.
2008-06-26 19:46:51 -08:00
Andreas Gal
a1b42735cd
Backed out changeset fa82b7eda72a
2008-06-26 19:44:23 -08:00
Andreas Gal
5b4f0aaeaa
Allocate recorder dynamically to avoid having a vtable in the struct holding the reference. Emit writebacks for every update to the tracker, not just stack writes.
2008-06-26 19:37:28 -08:00
Andreas Gal
407b9cdf75
Parameterize tracker.
2008-06-26 17:13:54 -08:00
Andreas Gal
6d192a7054
Added end-of-trace detection and make sure trace loops back to the loop header.
2008-06-22 09:30:04 -07:00
Andreas Gal
78da0668af
Start attaching our tracer to nanojit. This is incomplete and meant for review by David only.
2008-06-21 14:55:32 -07:00
Andreas Gal
33ecda6e85
Added danderson's test cases for nanojit. Execute with nanojit() from JS shell.
2008-06-19 18:28:15 -07:00
Andreas Gal
179be35727
Notify the recorder of all primitives as they are recorded. If the recorder doesn't support a primitive we abort the trace. In debugging mode this also stops the VM.
2008-06-11 20:22:00 -07:00
Andreas Gal
448d1ba7e3
Merge with be's last push.
2008-06-11 18:13:43 -07:00
Andreas Gal
bb1b206714
Use an error property in the recorder instead of a return value to indicate errors and make sure DO_OP aborts the trace once we go into the error state in the tracer.
2008-06-11 17:59:28 -07:00
Brendan Eich
a64ed1a5ee
native_pointer_to_jsval should not lose low-order bits (plus random style nits).
2008-06-11 17:21:15 -07:00
Andreas Gal
54dd5103e9
Track data flow through variables in the recorder. Set an error flag if the recorder signals an error.
2008-06-11 17:15:49 -07:00
Brendan Eich
74c80d5597
Kill trailing spaces.
2008-06-11 13:07:24 -07:00
Andreas Gal
b484f790e4
Start hooking the recorder into the tracer.
2008-06-11 12:12:29 -07:00
Andreas Gal
fef28e9f56
Allow recorder to abort recording.
2008-06-11 11:29:35 -07:00
Andreas Gal
17d0d41459
Added branch monitoring using a single unified branch frequency counter.
2008-06-10 16:49:05 -07:00
Andreas Gal
a1bf0819b2
Removed JSOP_HEADER code. Its too costly. This patch restore essentially the same performance as unmodified SM.
2008-06-10 14:44:51 -07:00
Brendan Eich
04b1ac5592
Merge.
2008-06-04 00:09:57 -07:00
Brendan Eich
894dd03e2a
First stage of loop table work; bitmap free space management and GC hook-up still to come.
2008-06-03 23:52:28 -07:00
Andreas Gal
9684e2070f
Introduced a JavaScript recording script that is loaded dynamically.
2008-06-03 21:01:23 -07:00
Andreas Gal
be39054e45
Store the recorder script in JSTraceMonitor and make sure its traced by the GC. Also clean up the tracing of JSTraceMonitor.
2008-06-03 17:35:30 -07:00
Andreas Gal
8b6c4d02c6
Remove InitTacer. Pointless for JSRuntime.
2008-06-03 17:04:42 -07:00
Brendan Eich
9c2b039d6f
JSOP_HEADER takes a byte index of loop header counting from script->loopBase, and related changes.
2008-06-03 14:48:47 -07:00
Brendan Eich
946fa41d8c
Fiddle loop table slot interface and impl in hope of freeing slots over time.
2008-06-02 18:06:33 -07:00
Brendan Eich
3db9424289
Merge and undo js_AllocateLoopTableSlot reparam.
2008-06-02 17:28:39 -07:00
Brendan Eich
01514c4b16
No JS_TRACER ifdefs, keep line len < 80, reparameterize jstracer.cpp functions, js_OpLength helper.
2008-06-02 17:19:41 -07:00
Brendan Eich
5b116ae998
Merge, style nits, no locking for tracing.
2008-05-31 15:29:54 -07:00
Andreas Gal
e461a72736
The table is now per-thread in a multi-threaded environment, and per-runtime otherwise. During code generation we merely allocate a loop table slot to each loop. Each thread will enlarge the table as needed in JSOP_HEADER.
2008-05-30 18:58:43 -07:00
