Commit Graph

199 Commits

Author SHA1 Message Date
shaver@mozilla.org
f298721bf2 update to isInt 2008-07-05 09:43:00 -04:00
shaver@mozilla.org
13b4f67ef5 merge 2008-07-05 09:34:19 -04:00
shaver@mozilla.org
92e9aa44c0 [mq]: simple-ops 2008-07-05 09:15:33 -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
cef5e9becc Make trace-code 32-bit clean and extend interpreter state to carry the current context (cx). The recorder still has to record a 31-bit int path through the loop, but the emitted code is able to stay in the tree even if values bump over to 32-bit ints. 2008-07-04 16:24:42 -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
8f4707fd29 Added dmod builtin and flag broken builtins for removal (shaver). 2008-07-02 22:05:30 -07:00
Andreas Gal
6eb6314e75 Support recording of ValueToECMAInt32, ValueToECMAUint32 and ValueToBoolean. 2008-07-02 21:48:42 -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
47c6075eb2 Fix unstable trace rejection for optimized build. 2008-07-02 15:31:40 -07:00
Andreas Gal
7906238314 Fix type stability check. 2008-07-02 15:17:53 -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
8907cd354b Flag ints as type INT in the incoming context if its merely a double holding an int that was too large to fit into jsval directly. Along the side exits make sure we can properly box oversized ints (by casting them to doubles). The fetch_int/store_int paths still need fixing to ensure that values are merely passed through (prim_copy) instead of explicit casting or calling to ValueToECMAInt32 etc. 2008-07-02 02:53:24 -07:00
Andreas Gal
08bd8d4245 Generate proper overflow detection code. Requires a trivial fix in nanojit (included, pending review to be pushed upstream). 2008-07-02 00:13:05 -07:00
Andreas Gal
7eba55b32b Merge. 2008-07-01 19:44:24 -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
Brendan Eich
9d20e12316 snprintf takes sizeof buffer. 2008-07-01 15:58:47 -07:00
Andreas Gal
39891951f4 Merge. 2008-07-01 13:36:33 -07:00
shaver@mozilla.org
da72d620b9 fix frame offset calculation for args, I think also non-entry frames 2008-07-01 08:11:49 -04:00
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
7511e45275 Use #ifdef DEBUG instead of VERBOSE. 2008-06-30 11:44:47 -07:00
Andreas Gal
806d0de678 Must use (&gc) new otherwise memory doesn't get cleared (found by danderson). 2008-06-30 11:39:00 -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
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
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
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
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
2dca610f28 Make sure nativeOffset uses 64-bit slots on the native stack. 2008-06-26 21:25:30 -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
2fddbfdceb Removed debug printfs from tracker. 2008-06-26 19:41:58 -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
4678be95aa Fix a bug in tracing can_do_fast_inc_dec (wasn't tracking a copy and traced incorrect code). Merge with TT tip. 2008-06-24 15:57:33 -07:00
Andreas Gal
d8e0d5edec Removed debug code. 2008-06-23 17:17:48 -07:00
Andreas Gal
5e55f5e1f4 Merge. 2008-06-23 16:52:37 -07:00
Andreas Gal
5b30ba137c Merge. 2008-06-23 16:51:28 -07:00
Andreas Gal
0c1996ce25 Don't setup debugging data structures when not debugging. 2008-06-22 23:59:41 -07:00
Brendan Eich
d5d3c6fb26 Random style nit-picking. 2008-06-22 23:42:54 -07:00
Andreas Gal
17d189ecb9 Eliminate boxing in trace code. To execute such traces all values on the stack must have the same type at execution time as at trace time. Code to detect and enforce these types will be added next. 2008-06-22 21:32:24 -07:00
Andreas Gal
4312eb9b9b Write back stack/local variable state in the trace code and improved redundand boxing/unboxing elimination. 2008-06-22 19:58:24 -07:00
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
2270a14eb0 Fix guard code assembly. This code generates trace code for the first time. 2008-06-21 23:45:16 -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
Brendan Eich
77dcedf8cc Fix slew of gcc warnings, clear pending exception before triggering recorder error. 2008-06-12 12:07:04 -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
fef28e9f56 Allow recorder to abort recording. 2008-06-11 11:29:35 -07:00
Andreas Gal
50bf94c527 Notify recorder when tracing starts/stops. Restore code accidently lost during last merge. 2008-06-11 01:22:39 -07:00
Brendan Eich
45358518de Minimize JSInterpreterState, fix warning. 2008-06-10 21:40:47 -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
3094b79c6b Switch to a uniform style for jstracer.cpp. 2008-06-03 17:15:58 -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
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
Brendan Eich
ef8a767739 Left brace style. 2008-05-31 10:17:40 -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
Andreas Gal
de3107d2ee Add a per-runtime loop attribute table that associates a jsval attribute with every loop in the code. The jsval is used initially as a counter until a certain threshold is reached, at which point the loop is traced and compiled and the resulting native code object is stored in the jsval to be executed for future encounters of the loop. 2008-05-30 10:11:56 -07:00
Brendan Eich
8bfb8bfef7 Split trace-supporting inlines, add ifdefs/macros for deriving js_TracingInterpret in jstracer.cpp. 2008-05-28 19:07:25 -07:00