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Author SHA1 Message Date
svenpanne@chromium.org
dc8c314084 Make snapshots reproducible. 
To keep the structure of the serializer more or less untouched, we use
some ingenious Corry-approved(TM) 3-step technology (a.k.a. "hack"):

   * Create copies of code objects.
   * Wipe out all absolute addresses in these copies.
   * Write out the cleaned copies instead of the originals.

In conjunction with --random-seed, our snapshots are reproducible now.

BUG=v8:2885
R=bmeurer@chromium.org, erik.corry@gmail.com

Review URL: https://codereview.chromium.org/54823002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@17473 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-11-05 10:14:48 +00:00
svenpanne@chromium.org
bb010f8ad0 Removed RelocInfo::target_object_address() and reconstructed_obj_ptr_. 
Depends on https://codereview.chromium.org/46583006/ and has similar reasoning behind it.

R=bmeurer@chromium.org

Review URL: https://codereview.chromium.org/50413004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@17469 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-11-05 09:40:36 +00:00
svenpanne@chromium.org
d1de1f9808 Refactored EXTERNAL_REFERENCE handling. 
Previously, the result of target_reference_address() could only be
read, writing to it would have had an architecture-dependent effect,
e.g. writing into the code on ia32, a no-op on arm, etc.

This refactoring-only CL turns this into a simple getter, making it
impossible to use incorrectly.

More to come...

R=bmeurer@chromium.org

Review URL: https://codereview.chromium.org/46583006

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@17467 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-11-05 09:22:35 +00:00
danno@chromium.org
bdeaf7514a Enable preaging of code objects when --optimize-for-size. 
This change means that code which is never executed is garbage collected immediately, and code which is only executed once is collected more quickly (limiting heap growth), however, code which is re-executed is  reset to the young age, thus being kept around for the same number of GC generations as currently.

BUG=280984
R=danno@chromium.org, hpayer@chromium.org

Review URL: https://codereview.chromium.org/23480031

Patch from Ross McIlroy <rmcilroy@chromium.org>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@17343 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-10-23 13:48:04 +00:00
dcarney@chromium.org
0a6d15453c remove most uses of Isolate::Current in arch specific files 
R=svenpanne@chromium.org
BUG=

Review URL: https://codereview.chromium.org/24031003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16643 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-09-11 10:51:06 +00:00
yangguo@chromium.org
b7b92bd9ac Short-circuit embedded cons strings. 
R=mstarzinger@chromium.org
BUG=

Review URL: https://codereview.chromium.org/17418003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15263 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-06-21 09:24:30 +00:00
danno@chromium.org
1b89cbf817 Separate Cell and PropertyCell spaces 
This makes it possible to store additional information on property cells, for example Type and optimized Code dependencies.

R=mstarzinger@chromium.org

Review URL: https://codereview.chromium.org/16631002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15089 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-06-12 15:03:44 +00:00
rodolph.perfetta@gmail.com
76ed72bd40 ARM: clean up code now that ARMv6 is the baseline. 
BUG=none
TEST=none

Review URL: https://chromiumcodereview.appspot.com/14188016

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14325 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-04-18 10:32:18 +00:00
danno@chromium.org
ffe7f6a1ba Remove ARM support for VFP2 
R=yangguo@chromium.org

Review URL: https://codereview.chromium.org/13560007

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14159 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-04-07 04:34:20 +00:00
danno@chromium.org
cfb957af15 Use IsRuntimeEntry for RUNTIME_ENTRY comparison 
Review URL: https://codereview.chromium.org/12702005
Patch from Haitao Feng <haitao.feng@intel.com>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13929 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-03-13 11:40:26 +00:00
danno@chromium.org
8dc25d2b29 Use direct jump and call instruction for X64 when the deoptimization entries are in the code range. 
Review URL: https://codereview.chromium.org/11574027
Patch from Haitao Feng <haitao.feng@intel.com>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13903 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-03-11 14:11:03 +00:00
danno@chromium.org
19badfdda5 Revert r13901 to reland with proper credit to external contributor. 
TBR=svenpanne@chromium.org

Review URL: https://codereview.chromium.org/12638011

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13902 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-03-11 14:09:21 +00:00
danno@chromium.org
d616baed77 Use direct jump and call instruction for X64 when the deoptimization entries are in the code range. 
Review URL: https://codereview.chromium.org/11574027

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13901 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-03-11 14:05:49 +00:00
ulan@chromium.org
bed569b548 ARM: Make use of d16-d31 when available. 
Review URL: https://chromiumcodereview.appspot.com/11428137
Patch from Hans Wennborg <hans@chromium.org>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13484 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-01-23 16:29:48 +00:00
ulan@chromium.org
0606abbaab Rename RelocInfo::NONE to RelocInfo::NONE32. 
This CL only does renaming, nothing else.

Followup to:
https://chromiumcodereview.appspot.com/11695006/

There are now NONE and NONE64 RelocInfo types, but only ARM uses them
both at the same time. They were added in:
https://chromiumcodereview.appspot.com/11191029/

R= ulan@chromium.org

Review URL: https://chromiumcodereview.appspot.com/11744020
Patch from JF Bastien <jfb@chromium.org>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13311 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-01-04 10:56:24 +00:00
danno@chromium.org
1f4b4625ff Re-land Crankshaft-generated KeyedLoad stubs. 
R=jkummerow@chromium.org

Review URL: https://chromiumcodereview.appspot.com/11528003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13236 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-12-18 16:25:45 +00:00
danno@chromium.org
64fc1f99cb Revert 13157, 13145 and 13140: Crankshaft code stubs. 
R=jkummerow@chromium.org

Review URL: https://codereview.chromium.org/11498006

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13179 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-12-10 11:09:12 +00:00
danno@chromium.org
f19959cd22 Enable stub generation using Hydrogen/Lithium (again) 
This initial implementation generates only KeyedLoadICs using the new Hydrogen stub infrastructure.

Committed: https://code.google.com/p/v8/source/detail?r=13105

Committed: https://code.google.com/p/v8/source/detail?r=13117

Review URL: https://codereview.chromium.org/10701054

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13140 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-12-05 11:04:10 +00:00
danno@chromium.org
66f6a8182c Revert 13117: "Enable stub generation using Hydrogen/Lithium (again)" 
TBR=mstarzinger@chromium.org

Review URL: https://codereview.chromium.org/11415261

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13120 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-12-03 17:16:51 +00:00
danno@chromium.org
78b09625d5 Enable stub generation using Hydrogen/Lithium (again) 
This initial implementation generates only KeyedLoadICs using the new Hydrogen stub infrastructure.

Committed: https://code.google.com/p/v8/source/detail?r=13105

Review URL: https://codereview.chromium.org/10701054

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13117 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-12-03 15:51:05 +00:00
danno@chromium.org
0a3bcc8c05 Revert 13105: "Enable stub generation using Hydrogen/Lithium." 
TBR=jkummerow@chromium.org

Review URL: https://codereview.chromium.org/11414262

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13106 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-11-30 17:45:45 +00:00
danno@chromium.org
c115ff4e33 Enable stub generation using Hydrogen/Lithium. 
This initial implementation generates only KeyedLoadICs using the new Hydrogen stub infrastructure.

Review URL: https://codereview.chromium.org/10701054

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13105 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-11-30 17:31:30 +00:00
danno@chromium.org
bd4e114b8e Add code again to allow reclaiming old unexecuted functions. 
When code objects in the heap for FUNCTIONs and OPTIMIZED_FUNCTIONs are marked by the GC, their prologue is patched with a call to a stub that removes the patch. This allows the collector to quickly identify code objects that haven't been executed since the last full collection (they are the ones that sill contain the patch). The functionality is currently disabled, but can be activated by specifying the "--age-code".

R=mstarzinger@chromium.org

Review URL: https://codereview.chromium.org/10837037

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12898 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-11-08 12:18:11 +00:00
danno@chromium.org
5da0bbf390 Loosen aligned code target requirement on ARM 
Fixes crashes when V8 is built as Thumb code.

R=ulan@chromium.org

Review URL: https://codereview.chromium.org/11343014

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12832 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-10-29 16:27:54 +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
erik.corry@gmail.com
8d96a0190c Fix deserializer to understand direct pointers from code to cell payloads. 
The deoptimizer generates full-code-generator code and relies on it having
the same layout as last time.  This means that the code the full code
generator makes for the snapshot should be the same as the code it makes
later.  This change makes the full code generator create more consistent
code between mksnapshot time and run time.

This is a bug fix and a step towards making the snapshot code more robust.
Review URL: https://chromiumcodereview.appspot.com/10824084

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12233 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-07-31 09:25:23 +00:00
erik.corry@gmail.com
bc1eb293cd Enable snapshots on MIPS. This is based on 
http://codereview.chromium.org/9372063 by Daniel Kalmar.
Review URL: https://chromiumcodereview.appspot.com/9722020

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11107 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-03-21 14:29:14 +00:00
kmillikin@chromium.org
cb876c25a4 Include what you use for allocation, api, assembler, and ast. 
R=fschneider@chromium.org
BUG=
TEST=

Review URL: https://chromiumcodereview.appspot.com/9288011

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@10505 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-01-25 16:31:25 +00:00
kmillikin@chromium.org
32d7dd0409 Fix for an ARM register allocation bug. 
An off-by-one in the register allocator could lead to allocating (and
clobbering) the reserved 0.0 double register.  This required a function with
14 or more live double values.

BUG=
TEST=

Review URL: http://codereview.chromium.org/9114038

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@10374 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-01-10 16:59:55 +00:00
mstarzinger@chromium.org
5834284848 Refactor embedded pointer visitors for the serializer 
This patch continues the refactoring that started in r9597 and
extends it with support for the serializer.
This is required for MIPS support in the serializer.

Review URL: http://codereview.chromium.org/8467010
Patch from Gergely Kis <gergely@homejinni.com>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9971 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-11-11 12:28:42 +00:00
vegorov@chromium.org
b9f6ae21b8 Fix compilation on ARM and x64 broken by r9738 
R=erik.corry@gmail.com

Review URL: http://codereview.chromium.org/8359026

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9739 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-10-21 10:53:02 +00:00
mstarzinger@chromium.org
1da890af54 Refactor how embedded pointers are visited. 
This refactoring (almost) gets rid of the requirement to get the target
object address for an object pointer embedded in code objects. This is
not possible on MIPS as pointers are encoded using two instructions. All
usages of RelocInfo::target_object_address() are (almost) obsoleted by
this change. The serializer still uses it, so MIPS will not yet work
with snapshots turned on.

R=danno@chromium.org,vegorov@chromium.org

Review URL: http://codereview.chromium.org/8245007

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9597 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-10-12 15:43:41 +00:00
vegorov@chromium.org
36ae5f3811 Pass correct anchor_slot for EMBEDDED_OBJECT pointers from code objects. 
Correctly initialize newly created large-object pages when incremental marking with compaction is in progress.

R=erik.corry@gmail.com
BUG=v8:1737

Review URL: http://codereview.chromium.org/8070002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9475 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-09-28 17:45:58 +00:00
vegorov@chromium.org
ac36cb4504 Merge experimental/gc branch to the bleeding_edge. 
Review URL: http://codereview.chromium.org/7945009

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9328 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-09-19 18:36:47 +00:00
karlklose@chromium.org
b8d5fd7d32 Cleanup usage of HEAP in mark-compact. 
Review URL: http://codereview.chromium.org/6760025

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7475 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-04-01 11:59:00 +00:00
vitalyr@chromium.org
7976ca2cbc Merge isolates to bleeding_edge. 
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7271 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-03-18 20:35:07 +00:00
vitalyr@chromium.org
76e226f832 Revert r7268: it borked the history. 
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7269 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-03-18 19:41:05 +00:00
vitalyr@chromium.org
6ff7fdebd3 Merge isolates to bleeding_edge. 
Review URL: http://codereview.chromium.org/6685088

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7268 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-03-18 18:49:56 +00:00
ricow@chromium.org
091237ce5b Port revision 6732 to arm. 
I discussed with Soeren, and they do need this on arm as well.

Review URL: http://codereview.chromium.org/6478029

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@6733 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-02-10 16:26:44 +00:00
kasperl@chromium.org
90b3370374 Update V8 to version 3.0 (re-land r5920). 
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@5922 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2010-12-07 11:31:57 +00:00
kasperl@chromium.org
51b494d096 Revert r5920. Will re-land shortly. 
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@5921 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2010-12-07 11:01:02 +00:00
kasperl@chromium.org
e5860bd6a8 Update V8 to version 3.0. 
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@5920 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2010-12-07 09:11:56 +00:00
sgjesse@chromium.org
0c064efdb0 Make randomized allocations along 64k granularity boundaries to avoid comitting unused memory. 
BUG=56036
TEST=None.

Patch by Justin Schuh <jschuh@chromium.org>

Review URL: http://codereview.chromium.org/3849004



git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@5883 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2010-11-24 09:40:58 +00:00
vegorov@chromium.org
28f9412cbd Generalize virtually dispatched scavenger to virtually dispatched specialized visitors. 
Review URL: http://codereview.chromium.org/3066044

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@5246 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2010-08-11 14:30:14 +00:00
vegorov@chromium.org
bed254fac9 Do not apply JS_RETURN and DEBUG_BREAK_SLOT relocations on x64. 
Improve tests for debug API to check behavior of JS_RETURN and DEBUG_BREAK_SLOT relocations.

Review URL: http://codereview.chromium.org/3058049

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@5180 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2010-08-05 13:38:27 +00:00
ager@chromium.org
6702ace935 Move definition of NegateConditon from assembler*-inl.h files to 
assembler*.h files to make clang happy. There was no reason for having
the definition in the -inl.h files in the first place.

Review URL: http://codereview.chromium.org/2825008

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@4888 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2010-06-17 08:41:48 +00:00
sgjesse@chromium.org
4446355c26 ARM: Fix bug in r4820 related to code for additional break positions. 
These issues where unly revealed in debug mode
Review URL: http://codereview.chromium.org/2733006

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@4827 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2010-06-09 07:40:35 +00:00
sgjesse@chromium.org
baf100fc48 Add parenthesis around '&&' within '||' 
Warning by some gcc versions. Adding the parenthesis made the condition correct.

TBR=ager@chromium.org
Review URL: http://codereview.chromium.org/2725003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@4821 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2010-06-08 12:20:24 +00:00
sgjesse@chromium.org
634fb9152c More precise break points and stepping when debugging 
Added support for more precise break points when debugging and stepping. To achieve that additional nop instructions are inserted where breaking would otherwise be impossible. The number of nop instructions inserted are sufficient to make place for patching with a call to a debug break code stub. On Intel that is 5 nop's for 32-bit and 13 for 64-bit. Om ARM 3 nop instructions (12 bytes) are required.

In order to avoid inserting nop's in to many places a simple ast checker have been added to check whether there are breakable code in a statement or expression. If it is possible to break in an expression no additional break enabeling code is inserted.

Added break locations to the true and false part of a conditional expression.

Added stepping tests to cover more constructs.

These changes are only in the full compiler.

Changed the default value for the option --debugger in teh d8 shell from true to false. The reason for this is that with --debugger turned on the full compiler will be used for all code in when running d8, which can be unexpeceted.

Review URL: http://codereview.chromium.org/2693002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@4820 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2010-06-08 12:04:49 +00:00
erik.corry@gmail.com
e66f276e46 The way reloc entries are visited by the ObjectVisitor is architecture 
dependent, so we push it down to the architecture dependent files.
Currently all architectures visit in almost the same way, but this is
about to change on ARM with movw/movt.
Review URL: http://codereview.chromium.org/2218002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@4721 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2010-05-26 08:34:07 +00:00