rossberg@chromium.org
cd9029a502
Initial JS stub implementation of Object.observe. Adds support for .object/.unobserve/.notify/.deliverChangeRecords. No delivery mechanism is implemented for end-of-microtask.
...
Review URL: https://codereview.chromium.org/11225058
Patch from Rafael Weinstein <rafaelw@google.com>.
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12819 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2012-10-25 14:53:26 +00:00
danno@chromium.org
43e248d2e5
Use movw/movt instead of constant pool on ARMv7.
...
Some ARM architectures load 32-bit immediate constants more efficiently using movw/movt pairs rather than constant pool loads. This patch allows the assembler to generate one or the other load form at runtime depending on what is faster.
R=ulan@chromium.org
Review URL: https://codereview.chromium.org/11037023
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12755 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2012-10-18 12:21:42 +00:00
jkummerow@chromium.org
62223bd2c0
Revert recent CPU profiler changes because they broke --prof.
...
This reverts r12649 and r12650.
BUG=v8:2364
Review URL: https://codereview.chromium.org/11193020
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12745 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2012-10-17 12:24:31 +00:00
ulan@chromium.org
86eedc26b5
Allow unaligned accesses for ARMv7.
...
R=mstarzinger@chromium.org ,jfb@chromium.org
Review URL: https://chromiumcodereview.appspot.com/11087047
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12735 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2012-10-15 15:19:36 +00:00
mvstanton@chromium.org
b3c0ed8245
Enable --verify-heap in release mode
...
R=mstarzinger@chromium.org
BUG=v8:2120
Review URL: https://codereview.chromium.org/11118018
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12713 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2012-10-12 11:41:14 +00:00
svenpanne@chromium.org
f03fd70d9e
Added a simple dead code removal phase.
...
We iteratively remove all dead Hydrogen instruction until we reach a fixed point. We consider an instruction dead if it is unused, has no observable side effects and is deletable. The last part of the condition is currently not very nice: We basically have to whitelist "safe" instructions, because we are missing more detailed dependencies and/or more detailed tracking of side effects.
We disable dead code elimination for now in our test runners, because we have tons of poorly written tests which wouldn't test anymore what they are supposed to test with this phase enabled. To get test coverage for dead code elimination itself, we should enable it on a few build bots. This is not really a perfect state, but the best we can do for now.
This patch includes a few const-correctness fixes, most of them were necessary for this CL.
Review URL: https://codereview.chromium.org/11088027
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12697 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2012-10-11 10:52:58 +00:00
jkummerow@chromium.org
dfb4218a04
Moving cpu profiling into its own thread.
...
BUG=None
Review URL: https://codereview.chromium.org/10857035
Patch from Sergey Rogulenko <rogulenko@google.com>.
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12649 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2012-10-02 09:58:11 +00:00
danno@chromium.org
08747c3a16
Support for SDIV and MLS ARM instructions, and implement DoModI using them.
...
Also added support for the runtime detection to check if hardware supports SDIV/UDIV
Other new opportunities to exploit SDIV/UDIV will be done in separate issues.
Review URL: https://chromiumcodereview.appspot.com/10977051
Patch from Subrato K De <subratokde@codeaurora.org>.
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12646 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2012-10-01 21:27:33 +00:00
erik.corry@gmail.com
ee55b2c2d3
Switch on code compaction on incremental GCs.
...
Review URL: https://chromiumcodereview.appspot.com/10928203
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12506 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2012-09-14 11:38:45 +00:00
mmassi@chromium.org
22aed1cddd
Fixed bounds check removal by restricting it to int32 indexes (and reenabled both ABCR and index dehoisting).
...
BUG=
TEST=
Review URL: https://chromiumcodereview.appspot.com/10905232
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12493 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2012-09-12 17:00:25 +00:00
erik.corry@gmail.com
1987542825
Fix invariant so that we cannot record relocation slots for
...
white objects when compacting. Add flag for incremental code
compaction.
Review URL: https://chromiumcodereview.appspot.com/10907174
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12483 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2012-09-11 14:01:39 +00:00
svenpanne@chromium.org
7af6883098
Fixed deoptimization of inlined getters.
...
It is necessary to explicitly handle the internal frame lying between the caller
of the getter and the getter itself in the deoptimizer: When the getter is
inlined, leaving the internal frame restores the correct context.
BUG=http://crbug/134609
TEST=mjsunit/regress/regress-crbug-134609
Review URL: https://chromiumcodereview.appspot.com/10910110
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12470 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2012-09-07 09:01:54 +00:00
ulan@chromium.org
6df4bcfecf
Add support for running low level profiler on Android.
...
R=mstarzinger@chromium.org
Review URL: https://chromiumcodereview.appspot.com/10908122
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12469 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2012-09-06 15:01:20 +00:00
jkummerow@chromium.org
c2fedcc344
Disable accessor inlining (due to broken deopts)
...
BUG=134609
Review URL: https://chromiumcodereview.appspot.com/10908093
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12444 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2012-09-05 16:06:07 +00:00
rossberg@chromium.org
40f44b1d4f
Activate fixed ES5 readonly semantics by default.
...
R=jkummerow@chromium.org
BUG=
Review URL: https://chromiumcodereview.appspot.com/10912042
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12415 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2012-08-31 09:12:31 +00:00
yangguo@chromium.org
d3dca2adb0
Disable array bounds checks elimination.
...
R=svenpanne@chromium.org
BUG=
Review URL: https://chromiumcodereview.appspot.com/10895002
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12392 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2012-08-28 07:39:45 +00:00
svenpanne@chromium.org
f6f4798189
Print reason for disabling optimization. Kill --trace-bailout flag.
...
The reason for disabling optimization of a given function is carried around in
CompilationInfo. The new mechanism is general enough that --trace-opt now
subsumes everything --trace-bailout could print, so we nuked the latter flag.
Review URL: https://chromiumcodereview.appspot.com/10868106
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12391 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2012-08-28 07:18:06 +00:00
vegorov@chromium.org
f476d4d431
Allow uint32 value on optimized frames if they are consumed by safe operations.
...
Safe operations are those that either do not observe unsignedness or have special support for uint32 values:
- all binary bitwise operations: they perform ToInt32 on inputs;
- >> and << shifts: they perform ToInt32 on left hand side and ToUint32 on right hand side;
- >>> shift: it performs ToUint32 on both inputs;
- stores to integer external arrays (not pixel, float or double ones): these stores are "bitwise";
- HChange: special support added for conversions of uint32 values to double and tagged values;
- HSimulate: special support added for deoptimization with uint32 values in registers and stack slots;
- HPhi: phis that have only safe uses and only uint32 operands are uint32 themselves.
BUG=v8:2097
TEST=test/mjsunit/compiler/uint32.js
Review URL: https://chromiumcodereview.appspot.com/10778029
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12367 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2012-08-22 15:44:17 +00:00
ulan@chromium.org
bac8e56f8d
Fix test failures introduced by r12342.
...
Add missing context disposed notifications in test-api.
Move send-idle-notification flag to d8 options so that it is available in d8
when v8 is build as a shared libarary.
R=yangguo@chromium.org
Review URL: https://chromiumcodereview.appspot.com/10834405
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12343 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2012-08-20 13:19:52 +00:00
svenpanne@chromium.org
b10d5d7f08
Deoptimization support for accessors.
...
Highlights of this CL:
* Introduced a new opcode in the deoptimizer for a setter stub frame.
* Added a global setter stub for returning after deoptimizing a setter.
* We do not need special deopt support for getters, although the getter stub creates an internal frame. The normal machinery works just right for this case, although we generate a stack that can never occur during normal fullcode execution. If this hurts us one day, we can parameterize and reuse the setter deopt machinery.
Review URL: https://chromiumcodereview.appspot.com/10855098
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12328 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2012-08-17 10:43:32 +00:00
rossberg@chromium.org
42552808ab
Rename "global context" to "native context",
...
in anticipation of the upcoming lexical global scope.
Mostly automatised as:
for FILE in `egrep -ril "global[ _]?context" src test/cctest`
do
echo $FILE
sed "s/Global context/Native context/g" <$FILE >$FILE.0
sed "s/global context/native context/g" <$FILE.0 >$FILE.1
sed "s/global_context/native_context/g" <$FILE.1 >$FILE.2
sed "s/GLOBAL_CONTEXT/NATIVE_CONTEXT/g" <$FILE.2 >$FILE.3
sed "s/GlobalContext/NativeContext/g" <$FILE.3 >$FILE
rm $FILE.[0-9]
done
R=mstarzinger@chromium.org
BUG=
TEST=
Review URL: https://chromiumcodereview.appspot.com/10832342
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12325 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2012-08-17 09:03:08 +00:00
svenpanne@chromium.org
018670f2e4
Change the maximum optimization count into a commandline flag.
...
This is needed for some unit tests, which otherwise do not test what people
think they do. ;-)
Review URL: https://chromiumcodereview.appspot.com/10823362
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12318 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2012-08-16 11:40:03 +00:00
erik.corry@gmail.com
c3ef910b86
Disable array index dehoisting due to stability issues.
...
Review URL: https://chromiumcodereview.appspot.com/10834303
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12305 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2012-08-14 09:22:34 +00:00
erik.corry@gmail.com
8d30a964d8
Revert inadvertent commit of testing change to flag-definitions.h
...
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12288 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2012-08-10 12:26:21 +00:00
erik.corry@gmail.com
a9f5f3d6f5
Fix the full compiler on ARM to always generate the same code
...
regardless of the detected CPU. This is a requirement for the
debugger and the deoptimizer, which both expect that code from
the snapshot (compiled without VFP and ARM7) should have the
same layout as code compiled later.
This is another change to make snapshots more robust with
arbitrary code.
Review URL: https://chromiumcodereview.appspot.com/10824235
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12287 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2012-08-10 12:24:06 +00:00
ulan@chromium.org
fb7345cdfd
Add flag to trace the amount of external memory.
...
R=yangguo@chromium.org
Review URL: https://chromiumcodereview.appspot.com/10824196
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12269 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2012-08-07 14:17:35 +00:00
ulan@chromium.org
b4fd9de1f0
Adjust GC tracing: add a flag to ignore scavenger traces and print total GC time in verbose mode.
...
R=mstarzinger@chromium.org
Review URL: https://chromiumcodereview.appspot.com/10536147
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12267 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2012-08-07 08:19:11 +00:00
mstarzinger@chromium.org
76fe67b092
Implement verification of context separation.
...
This adds the --verify-global-context-separation flag which can be used
to verify that no code object embeds pointers to more than one global
context after a full GC. It uses an object visitor that just performs
shallow traversal of the object graph spanned by one code object, and
breaks at points where application objects are encountered. So it will
not trip on cross-context leaks introduced by the application itself.
R=verwaest@chromium.org
Review URL: https://chromiumcodereview.appspot.com/10830049
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12224 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2012-07-30 10:47:04 +00:00
svenpanne@chromium.org
cb4840c0e5
Inline simple getter calls.
...
Currently only simple getter calls are handled (i.e. no calls in count
operations or compound assignments), and deoptimization in the getter is not
handled at all. Because of the latter, we temporarily hide this feature behind a
new flag --inline-accessors, which is false by default.
Review URL: https://chromiumcodereview.appspot.com/10828066
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12223 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2012-07-30 10:42:21 +00:00
mmassi@chromium.org
3eb1df6580
Re-enable array index dehoisting.
...
BUG=
TEST=
Review URL: https://chromiumcodereview.appspot.com/10826031
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12203 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2012-07-26 14:21:40 +00:00
yangguo@chromium.org
59f212e7eb
Relax requirement from VFP3 to VFP2 where possible.
...
BUG=
TEST=
Review URL: https://chromiumcodereview.appspot.com/10818026
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12194 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2012-07-25 15:26:16 +00:00
danno@chromium.org
f793c77058
Reactivate packed array optimizations by default
...
R=jkummerow@chromium.org
Review URL: https://chromiumcodereview.appspot.com/10796088
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12176 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2012-07-23 15:01:25 +00:00
sanjoy@chromium.org
693c7643d2
Optimize functions on a second thread.
...
BUG=
TEST=
Review URL: https://chromiumcodereview.appspot.com/10807024
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12148 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2012-07-19 18:58:23 +00:00
mstarzinger@chromium.org
6d552f09d1
Add --trace-parse flag to parser.
...
R=yangguo@chromium.org
Review URL: https://chromiumcodereview.appspot.com/10802012
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12120 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2012-07-18 11:22:46 +00:00
svenpanne@chromium.org
a344ee21a7
Deactivate optimization of packed arrays.
...
It breaks the San Angeles WebGL demo.
BUG=http://code.google.com/p/chromium/issues/detail?id=137768
TEST=https://cvs.khronos.org/svn/repos/registry/trunk/public/webgl/sdk/demos/google/san-angeles/index.html
Review URL: https://chromiumcodereview.appspot.com/10806008
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12116 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2012-07-18 10:41:03 +00:00
danno@chromium.org
aae81e125b
Add counters that automatically track object sizes and counts.
...
Review URL: https://chromiumcodereview.appspot.com/10702168
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12082 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2012-07-13 12:22:09 +00:00
rossberg@chromium.org
dcf83a2114
Turn off es5_readonly again: still causes ~370 WebKit regressions.
...
R=mstarzinger@chromium.org
BUG=
TEST=
Review URL: https://chromiumcodereview.appspot.com/10693145
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12041 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2012-07-11 14:09:42 +00:00
rossberg@chromium.org
2ce9624d89
Turn on es5[2] features by default.
...
R=mstarzinger@chromium.org
BUG=
TEST=
Review URL: https://chromiumcodereview.appspot.com/10689156
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12038 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2012-07-11 09:39:44 +00:00
mmassi@chromium.org
c74871f37b
Fixed array bounds check elimination (Chromium issue 132114).
...
BUG=
TEST=
Review URL: https://chromiumcodereview.appspot.com/10698125
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12025 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2012-07-10 11:01:29 +00:00
mmassi@chromium.org
f1fec84711
Disable array bounds check removal.
...
BUG=
TEST=
Review URL: https://chromiumcodereview.appspot.com/10703115
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12016 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2012-07-09 13:25:29 +00:00
mmassi@chromium.org
41370d2b70
Restored removed flag.
...
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12015 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2012-07-09 12:06:07 +00:00
mmassi@chromium.org
5f9e5980ee
Re-enable array bounds check elimination.
...
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12014 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2012-07-09 12:05:58 +00:00
danno@chromium.org
d030121458
Activate optimization of packed arrays by default
...
R=jkummerow@chromium.org
Review URL: https://chromiumcodereview.appspot.com/10695055
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11961 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2012-07-02 09:50:53 +00:00
mstarzinger@chromium.org
84b866b2d9
Fix sharing of literal boilerplates for optimized code.
...
This makes sure the literal boilerplates array is correctly shared
together with optimized code when caching of optimized code is enabled.
It also enabled said caching by default again.
R=ulan@chromium.org
BUG=v8:2193
TEST=mjsunit/regress/regress-2193
Review URL: https://chromiumcodereview.appspot.com/10649008
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11911 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2012-06-22 13:55:15 +00:00
yangguo@chromium.org
a28c919c7b
Disable --cache-optimized-code by default.
...
R=mstarzinger@chromium.org
BUG=v8:2193
TEST=
Review URL: https://chromiumcodereview.appspot.com/10626015
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11905 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2012-06-22 12:21:18 +00:00
erikcorry
458e87fd05
Snapshots: Add --extra-code flag to mksnapshot which lets you specify a file
...
with more JS code that is loaded into the VM before writing the snapshot. Get
rid of the hard coded limit on the partial snapshot cache size. This change
disables most of the serializer tests for the snapshot build of the VM: It's
getting too complicated to support both booting from a snapshot and then
creating a new snapshot from the same VM or loading more code with another
snapshot in the same VM.
Review URL: http://codereview.chromium.org/10574013
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11871 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2012-06-19 18:38:03 +00:00
fschneider@chromium.org
bb0a2ea766
Share optimized code for closures.
...
Each SharedFunctionInfo gets an optimized code map to store
one optimized code object per context. When allocating a new
closure we consult this map and check if there is optimized code
that can be shared.
This patch is based on an original patch
by Anton Muhin (http://codereview.chromium.org/6793013/ ).
BUG=v8:2087, v8:2094
TEST=test/mjsunit/compiler/optimized-closures.js
Review URL: https://chromiumcodereview.appspot.com/10103035
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11817 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2012-06-14 14:06:22 +00:00
erik.corry@gmail.com
539084c242
Revert r11778 "Activate packed array optimizations by default" due to mjsunit test failures on ARM.
...
TBR=danno
Review URL: https://chromiumcodereview.appspot.com/10550002
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11786 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2012-06-12 22:34:13 +00:00
danno@chromium.org
d20af8417b
Activate packed array optimizations by default
...
R=jkummerow@chromium.org
Review URL: https://chromiumcodereview.appspot.com/10546123
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11778 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2012-06-12 15:38:57 +00:00
yangguo@chromium.org
8d07c7ff0d
Disable array bounds checks elimination by default.
...
BUG=132114
TEST=
Review URL: https://chromiumcodereview.appspot.com/10532107
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11775 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2012-06-12 15:22:21 +00:00
rossberg@chromium.org
c13dd2ece6
Put inherited readonliness behind a flag,
...
since it currently breaks WebKit bindings massively.
R=mstarzinger@chromium.org
BUG=
TEST=
Review URL: https://chromiumcodereview.appspot.com/10535007
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11714 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2012-06-05 12:39:07 +00:00
svenpanne@chromium.org
0fa7de11b5
Enable map transitions for accessor properties.
...
To avoid a performance regression for context creation with snapshots, we avoid
creating a useless long map chain for regular expressions, keeping the snapshot
size almost the same as before.
Review URL: https://chromiumcodereview.appspot.com/10440045
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11664 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2012-05-25 12:32:02 +00:00
svenpanne@chromium.org
ff216c9cea
Re-land: Use map transitions when defining accessor properties.
...
This is basically r11496, with the following changes:
* Set back pointers in maps (cherry-picked from r11528)
* Fixed size calculation in CopyInsert, as proposed by mstarzinger/rossberg
* DefineFastAccessor uses GetCallbackObject instead of GetValue (for __proto__)
* Put the code under a new flag, which is disabled by default
* Cut down the corresponding regression test
* Adapted bootup memory test, we actually only need a bit more memory on 64bit without snapshots, which can easily explained by more live maps lying around. Note that the snapshot variants are back to their previous limits.
Next steps: Investigate any performance degradationswith the flag enabled, and finally remove the flag when things are OK. Furthermore, GetCallbackObject should be merged into GetValue, the distinction is confusing and error-prone.
Review URL: https://chromiumcodereview.appspot.com/10445009
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11651 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2012-05-24 10:40:24 +00:00
danno@chromium.org
9910edbb9a
Implement tracking and optimizations of packed arrays
...
R=jkummerow@chromium.org
TEST=jkummerow@chromium.org
Review URL: https://chromiumcodereview.appspot.com/10170030
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11636 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2012-05-23 14:24:29 +00:00
mmassi@chromium.org
3fad332049
Disable array index dehoisting because of performance regressions on Kraken imaging-desaturate.
...
BUG=
TEST=
Review URL: https://chromiumcodereview.appspot.com/10383269
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11616 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2012-05-21 16:22:54 +00:00
mmassi@chromium.org
2fd1e1bbc2
Array index computation dehoisting.
...
When an array index (in an array access) is a simple "expression + constant", just embed the constant in the array access operation so that the full index expression is (potentially) no longer used and its live range can be much shorter.
This is effective in conjunction with array bounds check removal (otherwise the index is anyway used in the check).
Review URL: https://chromiumcodereview.appspot.com/10382055
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11596 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2012-05-21 07:59:50 +00:00
rossberg@chromium.org
a662a25469
Revert flag change for global semantics.
...
(Still breaks a couple of WebKit tests.)
R=mstarzinger@chromium.org
BUG=
TEST=
Review URL: https://chromiumcodereview.appspot.com/10381147
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11557 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2012-05-15 09:01:06 +00:00
rossberg@chromium.org
102de8e2ca
Activate new global semantics by default.
...
R=mstarzinger@chromium.org
BUG=
TEST=
Review URL: https://chromiumcodereview.appspot.com/10383085
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11536 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2012-05-10 10:35:42 +00:00
mmassi@chromium.org
93113da5a2
Eliminate redundant array bound checks (checks already performed earlier in the DT).
...
As a special case, for checks on index expressions with the form (expr + constant) if a smaller constant is checked later in the DT also eliminate the check.
Finally, if a larger constant is checked later in the same BB do the more general check (larger constant) earlier instead of the less general one.
This will not cause useless deoptimizations because, since we are in the same BB, all the checks would have been executed anyway.
BUG=
TEST=
Review URL: https://chromiumcodereview.appspot.com/10032029
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11437 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2012-04-25 14:32:27 +00:00
rossberg@chromium.org
c8aea7a184
Put new global var semantics behind a flag until WebKit tests are cleaned up.
...
R=mstarzinger@chromium.org
BUG=
TEST=
Review URL: https://chromiumcodereview.appspot.com/10163003
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11402 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2012-04-20 13:35:09 +00:00
svenpanne@chromium.org
cac8bbff6e
Replaced the --limit-inling flag by three separate flags and bumped hard limits.
...
This change makes experiments with inlining limits much easier. Note that the
default values for the limits keep their old values for now. Renamed things a
bit for more consistency.
Review URL: https://chromiumcodereview.appspot.com/10162001
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11397 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2012-04-20 10:42:12 +00:00
danno@chromium.org
ed5d288ac1
Adjust stack limit again to avoid overflow on 64 bit windows
...
Also add additional stack check.
R=mstarzinger@chromium.org
Review URL: https://chromiumcodereview.appspot.com/10006010
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11238 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2012-04-05 14:01:39 +00:00
danno@chromium.org
3c6f5774d2
Fix stack overflows on Windows x64.
...
R=mstarzinger@chromium.org
TEST=win 64 not red anymore
Review URL: https://chromiumcodereview.appspot.com/10008005
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11236 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2012-04-05 12:32:35 +00:00
ulan@chromium.org
0b6a617779
Age inline caches after context disposal.
...
Review URL: https://chromiumcodereview.appspot.com/9837005
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11122 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2012-03-23 13:33:11 +00:00
jkummerow@chromium.org
5d6763aaba
Enable experimental profiler by default
...
Review URL: https://chromiumcodereview.appspot.com/9726004
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11089 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2012-03-19 17:29:25 +00:00
fschneider@chromium.org
1c99c90be7
Re-enable constructor inlining and inline === comparison with boolean constants.
...
This change reverts r10974 which disabled those two optimizations.
They were not responsible for the problem in earley-boyer.
BUG=v8:2009
Review URL: https://chromiumcodereview.appspot.com/9699117
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11076 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2012-03-19 07:51:37 +00:00
danno@chromium.org
6e1f8780f9
Add flag to always call DebugBreak on abort
...
R=vegorov@chromium.org
Review URL: https://chromiumcodereview.appspot.com/9706097
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11068 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2012-03-16 13:43:04 +00:00
fschneider@chromium.org
35786621f2
Change --hydrogen-filter to allow specifying a negative filter for optimized functions.
...
When prepending a '-' to the function name, the function will not be optimized.
--hydrogen-filter=foo works as before.
--hydrogen-filter=-foo means don't optimize foo.
Review URL: https://chromiumcodereview.appspot.com/9691042
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11036 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2012-03-14 09:45:17 +00:00
yangguo@chromium.org
235e9e20a7
Experimental Profiler: tweak type info threshold.
...
Also included: simplify String.slice.
BUG=
TEST=
Review URL: https://chromiumcodereview.appspot.com/9694033
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11021 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2012-03-13 11:38:37 +00:00
fschneider@chromium.org
1f7d42efc9
Landing for pliard@chromium.org: Remove static initializers in v8.
...
This change includes two CLs by pliard@chromium.org:
1. http://codereview.chromium.org/9447052/ (Add CallOnce() and simple LazyInstance implementation):
Note that this implementation of LazyInstance does not handle global destructors (i.e. the lazy instances are never deleted).
This CL was initially reviewed on codereview.appspot.com:
http://codereview.appspot.com/5687064/
2. http://codereview.chromium.org/9455088/ (Remove static initializers in v8):
This CL depends on CL 9447052 (adding CallOnce and LazyInstance).
It is based on a patch sent by Digit.
With this patch applied, we have only one static initializer left (in atomicops_internals_x86_gcc.cc). This static initializer populates a structure used by x86 atomic operations. It seems that we can hardly remove it. If possible, it will be removed in a next CL.
This CL also modifies the presubmit script to check the number of static initializers.
BUG=v8:1859
Review URL: https://chromiumcodereview.appspot.com/9666052
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11010 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2012-03-12 13:56:56 +00:00
vegorov@chromium.org
da03f56b1f
Inline functions that use arguments object in f.apply(o, arguments) pattern.
...
Support arguments materialization after deoptimization in all frames (not only in topmost one).
R=fschneider@chromium.org
Review URL: https://chromiumcodereview.appspot.com/9643001
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11008 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2012-03-12 12:49:41 +00:00
jkummerow@chromium.org
efee39a075
Profiler experiments: update flag default values.
...
This doesn't enable the experimental profiler by default, it just tunes its behavior when it is enabled.
Review URL: https://chromiumcodereview.appspot.com/9668009
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@10992 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2012-03-09 17:55:54 +00:00
jkummerow@chromium.org
1d4221a4d3
Profiler experiments: merge self-optimization code into interrupt-at-exit
...
Review URL: https://chromiumcodereview.appspot.com/9633012
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@10991 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2012-03-09 16:23:06 +00:00
ulan@chromium.org
e6576f0938
Revert r10435 and r10923 because of failures.
...
r10435 CL: http://codereview.chromium.org/9195005
r10923 CL: https://chromiumcodereview.appspot.com/9601010
R=fschneider@chromium.org
Review URL: https://chromiumcodereview.appspot.com/9653025
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@10974 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2012-03-09 09:04:39 +00:00
rossberg@chromium.org
448b620dad
Basic interface inference for modules.
...
All module expressions, and all variables that might refer to modules,
are assigned interfaces (module types) that are resolved using
unification. This is necessary to deal with the highly recursive
nature of ES6 modules, which does not allow any kind of bottom-up
strategy for resolving module names and paths.
Error messages are rudimental right now. Probably need to track
more information to make them nicer.
R=svenpanne@chromium.org
BUG=v8:1569
TEST=
Review URL: https://chromiumcodereview.appspot.com/9615009
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@10966 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2012-03-08 13:03:07 +00:00
mstarzinger@chromium.org
c113ea7cf8
Enable constructor inlining by default again.
...
R=vegorov@chromium.org
TEST=mjsunit/compiler/inline-construct
Review URL: https://chromiumcodereview.appspot.com/9601010
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@10923 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2012-03-05 14:20:58 +00:00
vegorov@chromium.org
f416a684b2
Disable constructor inlining.
...
There are failures on Kraken.
R=fschneider@chromium.org
Review URL: https://chromiumcodereview.appspot.com/9585011
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@10903 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2012-03-02 12:50:42 +00:00
mstarzinger@chromium.org
1009e414b6
MIPS: Implement inlined object allocation in Crankshaft.
...
Port r10881 (0d25c61e).
Original commit message:
Generates inlined code for object allocation specific to the initial map
of the given constructor function. Also forces completion of inobject
slack tracking while crankshafting to finalize instance size of these
objects.
BUG=
TEST=
Review URL: https://chromiumcodereview.appspot.com/9569008
Patch from Daniel Kalmar <kalmard@homejinni.com>.
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@10890 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2012-03-01 12:38:58 +00:00
fschneider@chromium.org
a8980079a0
Add flag --trace-phase to selectively produce IR trace output.
...
By default --trace-hydrogen only generates the final IR (before
code generation). The other phases can be printed by specifying
them by their first letter. Currently H=HIR, L=LIR or Z=final IR (default)
are recognized.
Review URL: https://chromiumcodereview.appspot.com/9535009
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@10882 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2012-03-01 11:33:37 +00:00
erik.corry@gmail.com
9f375ea880
Fix secondary stub cache and add a test for the stub cache lookups.
...
Review URL: https://chromiumcodereview.appspot.com/9496010
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@10864 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2012-02-29 10:45:59 +00:00
mstarzinger@chromium.org
fb8eb04bfd
Implement inlining of constructor calls.
...
R=vegorov@chromium.org ,kmillikin@chromium.org
Review URL: https://chromiumcodereview.appspot.com/9304001
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@10849 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2012-02-28 09:05:55 +00:00
vegorov@chromium.org
9b55ebaa3a
When compiling for-in pass correct context value to the increment instruction.
...
Additionally force increment instruction to use int32 representation.
R=fschneider@google.com
BUG=http://crbug.com/115646
TEST=test/mjsunit/compiler/optimized-for-in.js
Review URL: https://chromiumcodereview.appspot.com/9463052
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@10844 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2012-02-27 14:37:27 +00:00
vegorov@chromium.org
53622335e3
Disable for-in support in Crankshaft while crashes and regressions are being investigated.
...
R=yangguo@chromium.org
Review URL: https://chromiumcodereview.appspot.com/9463049
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@10838 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2012-02-27 10:43:57 +00:00
jkummerow@chromium.org
75bf5e44d2
Profiler experiments: interrupt check at function exit
...
Review URL: https://chromiumcodereview.appspot.com/9432026
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@10795 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2012-02-22 15:18:29 +00:00
rossberg@chromium.org
958b3bf470
Parsing of basic module declarations (no imports/exports yet).
...
Module definitions are not compiled or otherwise executed yet.
Toplevel module identifiers are bound but never initialized.
R=kmillikin@chromium.org ,mstarzinger@google.com
BUG=
TEST=
Review URL: https://chromiumcodereview.appspot.com/9401008
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@10759 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2012-02-20 14:02:59 +00:00
rossberg@chromium.org
1336b913d0
Make built-ins strict mode conforming, and support a --use-strict flag.
...
* Turned all uses of 'const' into 'var'.
* Turned all uses of local 'function' into 'var'.
* Added a couple of missing toplevel 'var' declarations.
One consequence is that the properties on the builtin object are no longer
non-writable, and I had to adapt one test. Is that a problem?
Unfortunately, we cannot actually switch the library scripts to strict mode
by default, because that makes observable things like poisoned .caller properties
for library functions.
Also removed dead flag code in Compiler::Compile.
R=yangguo@chromium.org
BUG=
TEST=
Review URL: https://chromiumcodereview.appspot.com/9415010
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@10758 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2012-02-20 13:48:24 +00:00
jkummerow@chromium.org
0177aa62da
Count ICs that have type information.
...
Hidden behind --type-info-threshold=X flag, usage dependent on experimental profiler.
Review URL: https://chromiumcodereview.appspot.com/9403009
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@10753 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2012-02-20 12:57:23 +00:00
danno@chromium.org
6f7d9d2312
Enable smi_only_arrays by default.
...
R=jkummerow@chromium.org
Review URL: https://chromiumcodereview.appspot.com/9414007
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@10732 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2012-02-16 15:47:36 +00:00
jkummerow@chromium.org
866e0eeeb7
Small update to experimental profiler flags
...
Review URL: https://chromiumcodereview.appspot.com/9360041
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@10701 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2012-02-14 14:28:37 +00:00
jkummerow@chromium.org
4233bf8348
Initial support for count-based profiling
...
(behind FLAG_count_based_interrupts; only on ia32)
Review URL: https://chromiumcodereview.appspot.com/9373028
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@10699 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2012-02-14 14:00:31 +00:00
jkummerow@chromium.org
de510c3a58
Split experimental profiler flags
...
Review URL: https://chromiumcodereview.appspot.com/9374015
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@10660 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2012-02-09 13:30:01 +00:00
jkummerow@chromium.org
aa2e842134
Count-based profiling for primitive functions (hidden behind a flag)
...
Review URL: https://chromiumcodereview.appspot.com/9361026
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@10657 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2012-02-09 10:19:46 +00:00
vegorov@chromium.org
96baf602df
Ensure that regexp code flushing correctly updates slots buffer.
...
Enable code compaction again.
R=erik.corry@gmail.com
Review URL: https://chromiumcodereview.appspot.com/9365019
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@10647 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2012-02-08 15:44:07 +00:00
erik.corry@gmail.com
53c6838cce
Remove 5 unused flags.
...
Review URL: https://chromiumcodereview.appspot.com/9362014
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@10646 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2012-02-08 15:39:41 +00:00
kmillikin@chromium.org
e505a085e3
Remove the JSON AST printing support.
...
We are not currently maintaining or testing this.
R=danno@chromium.org
BUG=
TEST=
Review URL: https://chromiumcodereview.appspot.com/9363019
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@10643 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2012-02-08 13:53:24 +00:00
rossberg@chromium.org
a0b287a3b1
Extend scanner with new Harmony module keywords (under flag).
...
R=mstarzinger@chromium.org
BUG=
TEST=
Review URL: https://chromiumcodereview.appspot.com/9352013
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@10638 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2012-02-08 10:53:58 +00:00
fschneider@chromium.org
5bc8a69055
Remove another two unused flags.
...
Review URL: https://chromiumcodereview.appspot.com/9358019
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@10634 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2012-02-08 10:26:17 +00:00
kmillikin@chromium.org
9463c00d64
Remove unused --peephole-optimization flag.
...
R=danno@chromium.org
BUG=
TEST=
Review URL: https://chromiumcodereview.appspot.com/9361022
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@10630 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2012-02-08 09:55:25 +00:00
vegorov@chromium.org
cc3c37ef61
Disable code compaction again.
...
Check failures are gone but now layout tests are failing.
R=fschneider@chromium.org
Review URL: https://chromiumcodereview.appspot.com/9351019
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@10626 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2012-02-07 16:34:26 +00:00
vegorov@chromium.org
99fa8059c3
Try enabling (non-incremental) code compaction again.
...
This time include slot-recording fixes in code flushing that were accidentally omitted from the previous commit.
R=mstarzinger@chromium.org
Review URL: https://chromiumcodereview.appspot.com/9348018
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@10625 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2012-02-07 14:43:51 +00:00