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2780 Commits

Author SHA1 Message Date
bmeurer@chromium.org
7d14f34a1b Inline Array.shift() fast path instead of using a code stub. 
TEST=mjsunit/array-shift,mjsunit/array-shift2,mjsunit/array-shift3
R=yangguo@chromium.org

Review URL: https://codereview.chromium.org/308793010

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@21592 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-06-02 07:02:24 +00:00
bmeurer@chromium.org
a52f569f93 Simplify known successor block lowering. 
R=jarin@chromium.org

Review URL: https://codereview.chromium.org/308593003

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@21589 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-06-02 05:33:35 +00:00
verwaest@chromium.org
f4aa3ab03d Don't push eax/rax before calling Runtime_Abort 
Additionally delete the unused Throw(BailoutReason)

BUG=
R=jkummerow@chromium.org

Review URL: https://codereview.chromium.org/308083006

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@21582 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-05-30 14:27:19 +00:00
bmeurer@chromium.org
e9357a5e77 Refactor HType to get rid of various hacks. 
- Move HType to it's own file.
- Add HType::HeapObject and some other useful types.
- Get rid of the broken and useless HType::NonPrimitive.
- Introduce HType::FromType() to convert from HeapType to HType.
- Also add unit tests for HType.
- Fix types in Crankshaft.

R=rossberg@chromium.org

Review URL: https://codereview.chromium.org/300893003

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@21578 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-05-29 04:13:50 +00:00
ishell@chromium.org
fdef9ac252 FastCloneShallowArrayStub should not be used it the length of the array is too big as it could eventually exceed the allowed size limit for manually folded allocations. 
R=verwaest@chromium.org

Review URL: https://codereview.chromium.org/300283003

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@21573 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-05-28 16:00:52 +00:00
mvstanton@chromium.org
54313c8a0f Refactor CallICStub to use a different stub for each customization. 
This gives us much more room to customize on different functions, by
using MajorKey to differentiate them.

R=verwaest@chromium.org

Review URL: https://codereview.chromium.org/295383004

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@21564 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-05-28 11:29:55 +00:00
yangguo@chromium.org
eaf8718290 Move LiveEdit-related code. 
R=ulan@chromium.org

Review URL: https://codereview.chromium.org/300793002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@21559 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-05-28 10:21:46 +00:00
danno@chromium.org
0f929e7a54 Small changes in preparation for Hydrogen-generated KeyedLoadGeneric 
R=mvstanton@chromium.org

Review URL: https://codereview.chromium.org/303583002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@21535 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-05-27 15:15:49 +00:00
danno@chromium.org
6fa616ad73 Convert String array index/length hash to BitField 
R=verwaest@chromium.org

Review URL: https://codereview.chromium.org/300023011

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@21533 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-05-27 14:55:29 +00:00
jochen@chromium.org
276adeda1a Replace STATIC_CHECK with STATIC_ASSERT. 
It's just an alias, and STATIC_ASSERT is used way more often

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

Review URL: https://codereview.chromium.org/304553002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@21527 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-05-27 13:43:29 +00:00
yangguo@chromium.org
95a9c7e565 Merge Debugger and Debug. 
R=ulan@chromium.org

Review URL: https://codereview.chromium.org/301633005

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@21524 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-05-27 13:20:58 +00:00
jochen@chromium.org
47cea50399 Replace some calls to MemCopy with small constant sizes with memcpy 
MemCopy is only meant for variable size, large (>64bytes) copies,
otherwise, it's probably slower than memcpy due to the call
overhead and the compiler can't optimize it away.

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

Review URL: https://codereview.chromium.org/306453005

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@21519 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-05-27 12:02:44 +00:00
m.m.capewell@googlemail.com
9678ff12c6 ARM: use TempDoubleRegister 
R=ulan@chromium.org, bmeurer@chromium.org

Review URL: https://codereview.chromium.org/302453008

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@21517 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-05-27 10:22:53 +00:00
danno@chromium.org
621c7eb673 Convert ElementsKind into a BitField 
R=yangguo@chromium.org

Review URL: https://codereview.chromium.org/306513002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@21515 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-05-27 09:38:01 +00:00
jochen@chromium.org
84e078e561 Reland 21502 - "Move OS::MemCopy and OS::MemMove out of platform to utils" 
Verified that arm builds locally.

BUG=none
TBR=jkummerow@chromium.org
LOG=n

Review URL: https://codereview.chromium.org/306473004

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@21512 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-05-27 07:57:22 +00:00
bmeurer@chromium.org
7e8678bbaa Avoid HeapObject check in HStoreNamedField. 
This way an HStoreNamedField instruction can never deoptimize
itself, which is another important step towards a working
store elimination.

R=jarin@chromium.org

Review URL: https://codereview.chromium.org/299373005

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@21509 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-05-27 07:17:08 +00:00
jochen@chromium.org
eabd5a19b9 Revert 21502 - "Move OS::MemCopy and OS::MemMove out of platform to utils" 
TBR=jkummerow@chromium.org

Review URL: https://codereview.chromium.org/297303004

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@21504 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-05-26 19:56:27 +00:00
jochen@chromium.org
a5a21a0da4 Move OS::MemCopy and OS::MemMove out of platform to utils 
Since both are jitted on some platforms and depend on codegen, they
don't belong to the platform abstraction. At the same time, I can't put
them to codegen.h, as this would introduce cyclic dependencies.

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

Review URL: https://codereview.chromium.org/302563004

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@21502 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-05-26 19:33:15 +00:00
mvstanton@chromium.org
d755611e93 Reland "Customized support for feedback on calls to Array." and follow-up fixes. 
Comparing one CallIC::State to another was not done correctly, leading to a failure to patch a CallIC when transitioning from monomorphic Array to megamorphic.

BUG=chromium:377198,chromium:377290
LOG=Y
R=jkummerow@chromium.org

Review URL: https://codereview.chromium.org/305493003

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@21499 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-05-26 13:59:24 +00:00
hpayer@chromium.org
6ed0102b1d Remove high promotion mode. 
BUG=
R=mstarzinger@chromium.org

Review URL: https://codereview.chromium.org/296413004

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@21493 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-05-26 12:58:55 +00:00
jochen@chromium.org
0d1dc27eda Reland 21482 - "Merge v8globals.h and globals.h" 
> BUG=none
> R=mstarzinger@chromium.org
> LOG=n
>
> Review URL: https://codereview.chromium.org/293363006

BUG=none
TBR=mstarzinger@chromium.org
LOG=n

Review URL: https://codereview.chromium.org/295373003

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@21490 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-05-26 11:28:08 +00:00
jkummerow@chromium.org
60e665627d Revert "Customized support for feedback on calls to Array." and follow-up fixes. 
This reverts r21429, r21434, r21435, r21440, r21445.

BUG=chromium:377198
LOG=y
R=mvstanton@chromium.org

Review URL: https://codereview.chromium.org/300693002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@21484 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-05-26 09:04:00 +00:00
verwaest@chromium.org
53bbe2aec9 Revert "Merge v8globals.h and globals.h" 
Because of tree redness.

TBR=jochen@chromium.org

Review URL: https://codereview.chromium.org/306443002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@21483 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-05-26 08:39:04 +00:00
jochen@chromium.org
cd818d697d Merge v8globals.h and globals.h 
BUG=none
R=mstarzinger@chromium.org
LOG=n

Review URL: https://codereview.chromium.org/293363006

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@21482 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-05-26 08:15:13 +00:00
bmeurer@chromium.org
683bc694ad Skip write barriers in the fast case when setting up local context. 
The FastNewContextStub always allocates in new space, so we don't
need to update the write barrier when copying the parameters to
the newly allocated context.

R=hpayer@chromium.org

Review URL: https://codereview.chromium.org/297203002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@21481 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-05-26 08:13:09 +00:00
alexandre.rames@arm.com
8d334ed1dc Allow HPushArgument to handle more than one argument. 
R=ulan@chromium.org

Review URL: https://codereview.chromium.org/296113008

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@21468 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-05-23 14:06:42 +00:00
alexandre.rames@arm.com
18412a83b0 Provide a helper to generate multiple Lithium instructions for one Hydrogen instruction. 
R=jkummerow@chromium.org, ulan@chromium.org

Review URL: https://codereview.chromium.org/296993002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@21465 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-05-23 13:15:07 +00:00
ishell@chromium.org
4b9c03050a Reland r21442 "Inobject slack tracking is done on a per-closure basis instead of per-shared info basis." 
This fixes inobject slack tracking for prototype inheritance pattern that uses closures.

R=mstarzinger@chromium.org

Review URL: https://codereview.chromium.org/292183008

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@21457 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-05-23 08:52:05 +00:00
ishell@chromium.org
9f3183f76b Revert "Reland r21346 "Inobject slack tracking is done on a per-closure basis instead of per-shared info basis."" 
This reverts r21442.

TBR=jkummerow@chromium.org

Review URL: https://codereview.chromium.org/292433016

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@21444 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-05-22 17:13:28 +00:00
ishell@chromium.org
00b8e6128f Reland r21346 "Inobject slack tracking is done on a per-closure basis instead of per-shared info basis." 
This fixes inobject slack tracking for prototype inheritance pattern that uses closures.

R=mstarzinger@chromium.org

Review URL: https://codereview.chromium.org/290993009

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@21442 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-05-22 16:22:23 +00:00
ishell@chromium.org
58932c6c44 Revert "Inobject slack tracking is done on a per-closure basis instead of per-shared info basis." 
This reverts r21436.

TBR=jkummerow@chromium.org

Review URL: https://codereview.chromium.org/295933012

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@21437 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-05-22 13:38:32 +00:00
ishell@chromium.org
4a47cc5f63 Inobject slack tracking is done on a per-closure basis instead of per-shared info basis. 
This fixes inobject slack tracking for prototype inheritance pattern that uses closures.

R=mstarzinger@chromium.org

Review URL: https://codereview.chromium.org/283383006

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@21436 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-05-22 12:35:45 +00:00
mvstanton@chromium.org
e443c89206 Customized support for feedback on calls to Array. 
Gather transition feedback on array calls, and inline the Array
function call when it makes sense.

R=danno@chromium.org

Review URL: https://codereview.chromium.org/279423005

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@21429 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-05-22 09:30:02 +00:00
danno@chromium.org
def6cff3da Allow specifying base offset when constructing Keyed hydrogen instructions 
This is preparation for pending hydrogen stub work that needs to access memory using KeyedLoad/KeyedStore operations where the base offset used for the accesses are is the the default (e.g. the size of an FixedArray header for FixedArrays or zero for external arrays).

R=mvstanton@chromium.org

Review URL: https://codereview.chromium.org/295913009

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@21426 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-05-22 08:37:50 +00:00
yangguo@chromium.org
6fd69c2476 Remove special debug ExternalReferences. 
R=ulan@chromium.org

Review URL: https://codereview.chromium.org/296043002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@21421 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-05-22 07:57:33 +00:00
yangguo@chromium.org
7e1c789685 Remove unused thread locals from debugger. 
R=ulan@chromium.org

Review URL: https://codereview.chromium.org/286903003

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@21391 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-05-20 15:20:02 +00:00
bmeurer@chromium.org
a7e19c1a43 Revert "Refactor transitioning stores." 
This reverts commit r21383 for breaking the Mozilla tests.

TBR=hpayer@chromium.org

Review URL: https://codereview.chromium.org/292993003

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@21386 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-05-20 13:03:25 +00:00
bmeurer@chromium.org
b09989ec58 Refactor transitioning stores. 
There's actually no need to have the transition as part of the HStoreNamedField instruction. In fact, it is cleaner and faster to generate a separate HStoreNamedField for the transition map. This will also help to eliminate map stores with store elimination, as well as reduce register pressure for transitioning stores on ia32.

R=hpayer@chromium.org

Review URL: https://codereview.chromium.org/295743002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@21383 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-05-20 11:06:23 +00:00
ishell@chromium.org
2a62cce170 Reland "v8::TryCatch now works correctly with ASAN's UseAfterReturn mode enabled." 
BUG=chromium:369962
LOG=N
R=jkummerow@chromium.org

Review URL: https://codereview.chromium.org/282783004

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@21382 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-05-20 10:13:46 +00:00
rmcilroy@chromium.org
63199d0bfe Avoid flushing the icache unnecessarily when updating target addresses in code. 
This CL updates RelocInfo update operations and set_target_address_at to enable
skipping of the icache flush if it going to be batched up later.
Code::CopyFrom and Code::Relocate are modified to avoid individual icache
flushes since the whole code area will be flushed after the reloc info is
updated.

These changes reduce a regression when enabling the OOL constant pool on Arm,
since this change can cause MovT/MovW instructions for relocatable targets
if the constant pool is full.

Scores for Mandreel latency on a Nexus 5:
 - OOL CP disabled: 3533
 - OOL CP enabled, without this CL: 1825
 - OOL CP enabled, with change: 3015

R=rodolph.perfetta@arm.com, ulan@chromium.org

Review URL: https://codereview.chromium.org/284153004

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@21380 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-05-20 09:21:45 +00:00
svenpanne@chromium.org
ec23d0b815 Allow comparison in UINT32 mode. 
Shamelessly based on parts of https://codereview.chromium.org/288853003/. :-)

R=jkummerow@chromium.org

Review URL: https://codereview.chromium.org/288383002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@21355 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-05-19 07:47:09 +00:00
bmeurer@chromium.org
ecadc63b60 Partial revert of "Next bunch of fixes for check elimination". 
This reverts the part of r21154 that introduced the CHECK()s to verify
state of objects with stable maps during code generation. The CHECK()s
seem to trigger a non-critical hidden bug in the map stability
mechanism. We will re-add these CHECK()s once the bug is found and
fixed.

BUG=372173
LOG=y
R=svenpanne@chromium.org

Review URL: https://codereview.chromium.org/287363002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@21352 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-05-19 07:08:47 +00:00
yangguo@chromium.org
fe243379f8 Decouple CpuFeatures from serializer state. 
Traditionally, we cross compile a snapshot iff the serializer is enabled.
This will change in the future.

Changes:
 - CpuFeatures probing is done once per process, depending on whether we
   cross compile.
 - CpuFeatures are consolidated into the platform-independent assembler.h
   as much as possible.
 - FLAG_enable_<feature> will only be checked at probing time (already the
   case for ARM).
 - The serializer state is cached by the MacroAssembler.
 - PlatformFeatureScope is no longer necessary.
 - CPUFeature enum values no longer map to CPUID bit fields.

R=svenpanne@chromium.org

Review URL: https://codereview.chromium.org/285233010

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@21347 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-05-16 15:18:24 +00:00
rmcilroy@chromium.org
5cfca21295 Fix MacroAssembler::Prologue for Arm when FLAG_out_off_line_constant_pool is enabled. 
The prologue update in r21329 changed the scoping of the PredictableCodeSizeScope.

R=yangguo@chromium.org

Review URL: https://codereview.chromium.org/284303003

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@21345 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-05-16 14:49:11 +00:00
yangguo@chromium.org
7a5207803c Refactor MacroAssembler::Prologue. 
R=titzer@chromium.org

Review URL: https://codereview.chromium.org/288213002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@21329 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-05-15 12:10:00 +00:00
m.m.capewell@googlemail.com
41975b90c0 Fix FlooringDivByPowerOf2I on ARM/ARM64 
Fix for divisor=1, found during code inspection. We can't hit this bug, due to
HDiv::Canonicalize() discarding the operation, but it might avoid a future bug
hunt. Patch also includes a small tidying of the ARM64 code.

BUG=
R=ulan@chromium.org

Review URL: https://codereview.chromium.org/280883003

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@21313 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-05-14 14:34:37 +00:00
yangguo@chromium.org
3ccedf8952 Clean up debugger flags. 
R=ulan@chromium.org

Review URL: https://codereview.chromium.org/261253005

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@21270 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-05-12 13:47:01 +00:00
m.m.capewell@googlemail.com
2bdd088cde ARM: update defaults for flags 
R=bmeurer@chromium.org, ulan@chromium.org

BUG=

Review URL: https://codereview.chromium.org/264593002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@21258 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-05-12 09:25:32 +00:00
danno@chromium.org
71789ea1e5 Reland r20974: Unify and simplify the FastCloneShallowArrayStub 
- Don't bake in length/capacity into full codegen calls of stubs,
allowing boilerplates to increase their capacity without regenerating
code.
- Unify all variants of the clone stub into a single,
length-independent version.
- Various tweaks to make sure that the clone stub doesn't spill and
therefore need an eager stack frame.
- Handle all lengths of array literals in the fast case.

R=mvstanton@chromium.org

Committed: https://code.google.com/p/v8/source/detail?r=21230

Review URL: https://codereview.chromium.org/272513004

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@21253 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-05-12 07:49:11 +00:00
verwaest@chromium.org
c33a72b27f Revert "Reland r20974: Unify and simplify the FastCloneShallowArrayStub" 
This breaks nosnap.

BUG=
R=ishell@chromium.org

Review URL: https://codereview.chromium.org/272243002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@21242 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-05-09 17:56:55 +00:00