AuroraMiddleware/v8
1
0
Fork 0
Code Issues 2 Pull Requests Releases Wiki Activity
14,998 Commits 1 Branch 0 Tags 839 MiB
5c186bb197
Commit Graph

14998 Commits

This Branch
This Branch
All Branches
Author SHA1 Message Date
verwaest@chromium.org
1984ebad50 Allow ICs to be generated for own global proxy. 
R=dcarney@chromium.org

Review URL: https://codereview.chromium.org/166233004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19409 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-02-17 13:12:56 +00:00
jochen@chromium.org
35d2e17646 A64: Make simulator compiler with optdebug 
For some reason, the compiler cannot deduce the array bounds in opt
debug mode. An explicit check makes it happy.

BUG=none
R=ulan@chromium.org
LOG=n

Review URL: https://codereview.chromium.org/169473003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19408 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-02-17 12:43:30 +00:00
alph@chromium.org
8b53eb4cb6 Fix heap snapshot crash when JSArrayBuffer has no backing_store. 
LOG=N
BUG=344239
R=dslomov@chromium.org, yurys@chromium.org

Review URL: https://codereview.chromium.org/169393004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19407 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-02-17 12:39:01 +00:00
dcarney@chromium.org
127cafa846 Remove arch specific api callback generate functions 
R=verwaest@chromium.org

BUG=

Review URL: https://codereview.chromium.org/169353002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19406 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-02-17 12:36:44 +00:00
hpayer@chromium.org
22602980c0 Added a special stack guard to deopt marked allocation sites. 
BUG=
R=mvstanton@chromium.org, ulan@chromium.org

Review URL: https://codereview.chromium.org/169563002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19404 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-02-17 12:15:16 +00:00
jacob.bramley@arm.com
1634631ae4 A64: Tidy up Push and Pop TODOs. 
This addresses several TODOs:
  - Push and Pop requests can be queued up so that arrays of Registers
    can be pushed efficiently, with just one PrepareForPush/Pop.
  - PushMultipleTimes now takes an Operand. This allows variable-length
    arguments arrays to be initialized, for example.
  - A NoUseRealAbortsScope has been added to Abort so that
    AssertStackConsistency can be called from PrepareForPush without
    introducing infinite recursion.

BUG=
R=ulan@chromium.org

Review URL: https://codereview.chromium.org/169533002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19403 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-02-17 12:08:06 +00:00
mvstanton@chromium.org
be731e6c95 Add a premonomorphic state to the call target cache. 
From a CL by kasperl: https://codereview.chromium.org/162903004/

R=verwaest@chromium.org

Review URL: https://codereview.chromium.org/163413003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19402 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-02-17 11:59:45 +00:00
yangguo@chromium.org
7f6dc1ff9b Do not visit smis in the root list during GC. 
R=mstarzinger@chromium.org
BUG=328804
LOG=N

Review URL: https://codereview.chromium.org/166023003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19400 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-02-17 10:41:25 +00:00
jkummerow@chromium.org
43a836f70a ARM: build fix for r19380. 
This commit fixes the debug build on Linux with gcc 4.6.3 and 4.7.2.

Port r19381 (5476e11b)

BUG=
R=dcarney@chromium.org, plind44@gmail.com

Review URL: https://codereview.chromium.org/167523003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19398 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-02-17 08:10:02 +00:00
jarin@chromium.org
4c7ed144e1 Comparison in effect context lazy deopt fix. 
R=jkummerow@chromium.org
BUG=

Review URL: https://codereview.chromium.org/163623002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19396 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-02-16 05:51:10 +00:00
palfia@homejinni.com
b72a67dba1 MIPS: build fix for r19380 
Port r19381 (5476e11b)

BUG=
R=plind44@gmail.com

Review URL: https://codereview.chromium.org/163953014

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19395 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-02-14 21:28:22 +00:00
plind44@gmail.com
b1205064b8 MIPS: Remove HandlerKindField and just encode the handlerkind as the only extra-ic-state. 
Port r19385 (27769f9)

BUG=
R=plind44@gmail.com

Review URL: https://codereview.chromium.org/164283008

Patch from Balazs Kilvady <kilvadyb@homejinni.com>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19394 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-02-14 18:11:31 +00:00
plind44@gmail.com
cf9c9f9c47 MIPS: Don't mix handler flags into regular flag computation. 
Port r19384 (4ba5d0d)

BUG=
R=plind44@gmail.com

Review URL: https://codereview.chromium.org/167243003

Patch from Balazs Kilvady <kilvadyb@homejinni.com>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19393 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-02-14 18:06:34 +00:00
plind44@gmail.com
44b2122266 MIPS: api accessor store ics should return passed value. 
Port r19380 (114a9ca)

BUG=
R=plind44@gmail.com

Review URL: https://codereview.chromium.org/167083002

Patch from Balazs Kilvady <kilvadyb@homejinni.com>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19392 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-02-14 17:45:53 +00:00
plind44@gmail.com
857a483408 MIPS: Fix assignment of function name constant. 
Port r19379 (622d830)

Original commit message:
If it's shadowed by a variable of the same name and both are forcibly
context-allocated, the function is assigned to the wrong context slot.

BUG=v8:3138
LOG=Y
R=plind44@gmail.com

Review URL: https://codereview.chromium.org/166813002

Patch from Balazs Kilvady <kilvadyb@homejinni.com>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19391 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-02-14 17:37:45 +00:00
ishell@chromium.org
389df3e28d Debug-mode check added: optimized keyed store of a smi on x64 is done to a entry containing a smi. 
R=verwaest@chromium.org

Review URL: https://codereview.chromium.org/167063002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19389 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-02-14 16:41:59 +00:00
marja@chromium.org
0323bf9cd7 Revert "(Pre)Parser: Simplify NewExpression handling." 
This reverts revision 19386.

Reason: Mozilla failures.

BUG=
TBR=ulan@chromium.org,marja@chromium.org

Review URL: https://codereview.chromium.org/164183006

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19388 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-02-14 16:08:14 +00:00
ulan@chromium.org
6744ff61ae Fix dictionary element load to pass correct elements kind. 
Using FAST_SMI_ELEMENTS triggers optimization on 64-bit architectures that load
only the higher 32 bits of the element. If the element is a pointer to undefined
that has 0 in the higher half than it is erroneously treated as SMI 0.

BUG=v8:3158
LOG=N
TEST=mjsunit/sparse-array-reverse,mjsunit/regress/regress-3158.js
R=danno@chromium.org, ishell@chromium.org

Review URL: https://codereview.chromium.org/166653005

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19387 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-02-14 15:52:24 +00:00
marja@chromium.org
c532977da3 (Pre)Parser: Simplify NewExpression handling. 
Notes:
- We use simple recursion to keep track of how many "new" operators we have seen
  and where.
- This makes the self-baked stack class PositionStack in parser.cc unnecessary.
- Now the logic is also unified between Parser and PreParser.
- It might have been a copy-paste artifact (ParseLeftHandSideExpression ->
  ParseMemberWithNewPrefixesExpression) that the logic was so complicated
  before.

R=ulan@chromium.org
BUG=v8:3126
LOG=N

Review URL: https://codereview.chromium.org/166943002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19386 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-02-14 15:33:10 +00:00
verwaest@chromium.org
ed9bbc7051 Remove HandlerKindField and just encode the handlerkind as the only extra-ic-state. 
R=ishell@chromium.org

Review URL: https://codereview.chromium.org/166883002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19385 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-02-14 15:17:26 +00:00
verwaest@chromium.org
209b17ac31 Don't mix handler flags into regular flag computation. 
BUG=
R=ishell@chromium.org

Review URL: https://codereview.chromium.org/163363003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19384 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-02-14 15:15:08 +00:00
verwaest@chromium.org
fe0fe20e8f Pass in the handler kind to IC computation rather than extracting it from the handler. 
R=ishell@chromium.org

Review URL: https://codereview.chromium.org/163463002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19383 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-02-14 15:14:34 +00:00
mstarzinger@chromium.org
984af9c721 Add flags for write barrier elimination and local allocation folding. 
R=hpayer@chromium.org

Review URL: https://codereview.chromium.org/166163003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19382 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-02-14 14:58:05 +00:00
dcarney@chromium.org
55599b395a build fix for r19380 
R=mstarzinger@chromium.org

BUG=

Review URL: https://codereview.chromium.org/166483004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19381 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-02-14 14:48:20 +00:00
dcarney@chromium.org
0c844cc590 api accessor store ics should return passed value 
R=verwaest@chromium.org

BUG=

Review URL: https://codereview.chromium.org/166653003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19380 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-02-14 14:13:06 +00:00
yangguo@chromium.org
68c7523e63 Fix assignment of function name constant. 
If it's shadowed by a variable of the same name and both are forcibly
context-allocated, the function is assigned to the wrong context slot.

R=rossberg@chromium.org
BUG=v8:3138
LOG=Y

Review URL: https://codereview.chromium.org/159903008

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19379 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-02-14 12:40:47 +00:00
bmeurer@chromium.org
3841070294 Handle the uninitialized oddball in Type::LubBitset(). 
R=rossberg@chromium.org

Review URL: https://codereview.chromium.org/166203002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19378 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-02-14 12:34:28 +00:00
hpayer@chromium.org
94dc107504 The sweeper thread should not write the page flags. Added a sweeping complete phase, where the main thread writes the given page flags. 
BUG=
R=jarin@chromium.org, jochen@chromium.org

Review URL: https://codereview.chromium.org/163683003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19377 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-02-14 12:33:35 +00:00
marja@chromium.org
9ec8e586dd Remove Parser::scanner(). There is already ParserBase::scanner(). 
R=ulan@chromium.org
BUG=v8:3126
LOG=N

Review URL: https://codereview.chromium.org/166513003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19376 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-02-14 12:13:33 +00:00
jarin@chromium.org
8acefb33fe Test and fix for polymorphic named call deoptimization. 
The fix removes wrong simulates from the number branch of polymorphic
call/field access handling.

The change also fixes the same thing for polymorphic named field
access even thourgh the field access is probably safe in practice
(because it cannot deoptimize). It is better to keep all our simulates
in sync with full codegen.

R=jkummerow@chromium.org
BUG=

Review URL: https://codereview.chromium.org/166503002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19375 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-02-14 12:02:39 +00:00
marja@chromium.org
cd50687b41 (Pre)Parser: Move ParsePrimaryExpression to ParserBase. 
Notes:
- To be able to move the recursive descent functions to ParserBase one at a
time, we temporarily need routing functions from traits to Parser/PreParser,
since the recursive descent functions form a cyclic structure.
- PreParser used to always allow intrinsic syntax. After this CL, it depends on
allow_natives_syntax() which was already in ParserBase.
- This CL also decouples (Pre)ParserTraits better from (Pre)Parser, passing more
information as parameters, so that the Traits don't need to get it from
(Pre)Parser.
R=ulan@chromium.org
BUG=v8:3126
LOG=N

Review URL: https://codereview.chromium.org/163333003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19374 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-02-14 11:24:26 +00:00
jkummerow@chromium.org
4c2626a0c7 Valgrind fix: always initialize HCheckTableEntry->is_stable_ 
BUG=chromium:343621
LOG=N
R=ishell@chromium.org

Review URL: https://codereview.chromium.org/166413002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19371 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-02-14 10:03:17 +00:00
yangguo@chromium.org
a676bc1bbf Fix typed array error message. 
R=dslomov@chromium.org
BUG=v8:3159
LOG=N

Review URL: https://codereview.chromium.org/163293002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19369 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-02-14 09:33:03 +00:00
m.m.capewell@googlemail.com
def0b80b9d A64: Prevent repeated restoring of root in gap resolver 
BUG=
R=ulan@chromium.org

Review URL: https://codereview.chromium.org/164353002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19368 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-02-14 09:12:39 +00:00
machenbach@chromium.org
412675476b Prepare push to trunk. Now working on version 3.24.40. 
R=jkummerow@chromium.org
TBR=jkummerow@chromium.org

Review URL: https://codereview.chromium.org/163183007

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19365 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-02-14 01:05:20 +00:00
palfia@homejinni.com
9606cafc67 MIPS: Fix r19360 "Improve positions tracking inside the HGraphBuilder." 
BUG=
R=vegorov@chromium.org

Review URL: https://codereview.chromium.org/164033002

Patch from Balazs Kilvady <kilvadyb@homejinni.com>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19364 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-02-13 18:11:49 +00:00
verwaest@chromium.org
e0960e19aa Fix polymorphic inlining of accessors in a test-context. 
R=ishell@chromium.org

Review URL: https://codereview.chromium.org/164003002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19363 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-02-13 16:55:38 +00:00
vegorov@chromium.org
52649ed2e2 Fix A64 build: unwrap HSourcePosition into int before recording. 
Remove unused position_ field in the LChunkBuilder.

R=ulan@chromium.org
BUG=

Review URL: https://codereview.chromium.org/163913003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19362 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-02-13 16:53:18 +00:00
marja@chromium.org
cad32c1917 (Pre)Parser: Move FunctionState, BlockState and Scope handling to ParserBase. 
Notes:
- This removes Parser::FunctionState and PreParser::FunctionState and adds
ParserBase::FunctionState etc.
- Also the scope stacks and function state stacks are moved to ParserBase.
- PreParser::FunctionState didn't add and subtract
JSFunction::kLiteralsPrefixSize (unlike Parser::FunctionState). Since the
actual value of NextMaterializedLiteralIndex is not used in the Preparser,
this change is valid.
- Traits no longer need functions like is_classic_mode(), since now there is a
 unified way of getting the information from the FunctionState / Scope.

R=ulan@chromium.org
BUG=v8:3126
LOG=N

Review URL: https://codereview.chromium.org/135213007

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19361 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-02-13 16:17:55 +00:00
vegorov@chromium.org
8f170a66e7 Improve positions tracking inside the HGraphBuilder. 
Instead of tracking simple absolute offset from the start of the script like other places do, track a pair of (inlining id, offset from the start of inlined function).

This enables us to pinpoint with inlining path an instruction came from. Previously in multi-script environments we emitted positions that made very little sense because inside a single optimized function they would point to different scripts without a way to distinguish them.

Start dumping the source of every inlined function to make possible IR viewing tools with integrated source views as there was previously no way to acquire this information from IR dumps. We also dump source position at which each inlining occured.

Tracked positions are written into hydrogen.cfg as pos:<inlining-id>_<offset>.

Flag --emit-opt-code-positions is renamed by this change into --hydrogen-track-positions to better convey it's meaning.

In addition this change assigned global unique identifier to each optimization performed inside isolate. This allows to precisely match compilation artifacts (e.g. IR and disassembly) and deoptimizations.

BUG=
R=yangguo@chromium.org

Review URL: https://codereview.chromium.org/140683011

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19360 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-02-13 16:09:28 +00:00
verwaest@chromium.org
386bc4c2fa Return on the polymorphic hard deopt case to ensure we don't polute phis with fake type information. 
R=ishell@chromium.org

Review URL: https://codereview.chromium.org/163403003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19359 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-02-13 15:54:19 +00:00
m.m.capewell@googlemail.com
028ff21445 A64: Fix some int32 accesses in lithium 
This fixes mjsunit/sin-cos. There are further int32 accesses being investigated.

BUG=
R=jochen@chromium.org

Review URL: https://codereview.chromium.org/163553005

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19358 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-02-13 15:49:01 +00:00
jochen@chromium.org
ee2b095a57 Introduce --job-based-sweeping flag and use individual jobs for sweeping if set 
BUG=v8:3104
R=hpayer@chromium.org
LOG=y

Review URL: https://codereview.chromium.org/143803007

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19357 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-02-13 15:36:17 +00:00
alph@chromium.org
4aabb8aeec Count ArrayBuffer's backing_store memory in heap snapshot. 
BUG=341741
LOG=N
R=dslomov@chromium.org, loislo@chromium.org

Review URL: https://codereview.chromium.org/163593002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19356 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-02-13 15:31:39 +00:00
hpayer@chromium.org
e18aff1c4b Use NoBarrier_Load and NoBarrier_Store in FreeListCategory::Concatenate. 
BUG=
R=jarin@chromium.org

Review URL: https://codereview.chromium.org/138953018

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19355 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-02-13 15:01:10 +00:00
ishell@chromium.org
6bb57517c0 Restore of compare-objeq-elim test accidentally removed in r19229. 
R=verwaest@chromium.org

Review URL: https://codereview.chromium.org/162903005

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19354 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-02-13 12:22:24 +00:00
svenpanne@chromium.org
ece3480b2d Removed unused field, making clang happy again. 
R=marja@chromium.org

Review URL: https://codereview.chromium.org/163233003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19353 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-02-13 12:02:57 +00:00
ulan@chromium.org
01b275d989 Enable test-api/SetFunctionEntryHook for a64. It was fixed in r19297. 
BUG=v8:3153
LOG=N
R=jochen@chromium.org

Review URL: https://codereview.chromium.org/163243003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19352 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-02-13 10:56:10 +00:00
bmeurer@chromium.org
42c57ea94b Allow map check hoisting in GVN for stable maps. 
R=verwaest@chromium.org

Review URL: https://codereview.chromium.org/163263002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19351 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-02-13 10:47:00 +00:00
alexandre.rames@arm.com
a7e7d08448 A64: Indicate the correct size for constant pools. 
This fixes potential issues that would appear when trying to insert a breakpoint
from JavaScript.
Without this, computing the mapping of addresses between versions of the code with
and without debug slots could be off by an instruction, trigerring nasty bugs.

R=jochen@chromium.org

Review URL: https://codereview.chromium.org/139983007

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19350 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-02-13 10:27:42 +00:00