mmassi@chromium.org
583f67b54b
Make the array bounds check elimination phase optional (and set the foundation for introducing SSI in a simple way).
...
BUG=
Review URL: https://chromiumcodereview.appspot.com/11783055
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13409 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2013-01-17 12:39:16 +00:00
mvstanton@chromium.org
7884216804
Additional work to get array literal allocation tracking working, even with --always-opt
...
BUG=
Review URL: https://codereview.chromium.org/11817017
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13406 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2013-01-17 08:41:27 +00:00
yangguo@chromium.org
45f20e366a
Introduce ENABLE_LATIN_1 compile flag
...
Mostly a bunch of renaming when flag is disabled.
R=yangguo@chromium.org
BUG=
Review URL: https://chromiumcodereview.appspot.com/11759008
Patch from Dan Carney <dcarney@google.com>.
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13340 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2013-01-09 10:30:54 +00:00
ulan@chromium.org
4403daca1a
ARM: generate integer zero in a uniform manner.
...
ARM generated integer zero as either Operand(0, RelocInfo::NONE32), or
Operand(0), or Operand::Zero(). My change makes it use only
Operand::Zero().
This has no functional impact, it's pure cleanup.
R= ulan@chromium.org
Review URL: https://chromiumcodereview.appspot.com/11745030
Patch from JF Bastien <jfb@chromium.org>.
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13318 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2013-01-07 09:43:12 +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
45a012ec2c
Elide unnecessary context reload in generated stubs.
...
Review URL: https://codereview.chromium.org/11550005
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13290 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2012-12-28 16:25:38 +00:00
danno@chromium.org
653a66f527
ARM: Use division instructions in lithium and stubs
...
BUG=none
TEST=Added to test/mjsunit/math-floor-of-div.js, math-floor-of-div-nosudiv.js
Review URL: https://codereview.chromium.org/11316105
Patch from Martyn Capewell <m.m.capewell@googlemail.com>.
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13257 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2012-12-20 16:31:19 +00:00
danno@chromium.org
09fec366f8
Remove redundant loads in DoCheckMaps
...
Hoist the loop-invariant load out of the loop and call the other CheckMap function
BUG=none
TEST=none
Committed: https://code.google.com/p/v8/source/detail?r=13200
Review URL: https://codereview.chromium.org/11369014
Patch from Rajeev Krithivasan <rkrithiv@codeaurora.org>.
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13253 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2012-12-20 14:05:14 +00:00
yangguo@chromium.org
9eccd63ccc
Fix ARM code for DoModI.
...
R=ulan@chromium.org
BUG=166379
Review URL: https://chromiumcodereview.appspot.com/11618020
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13247 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2012-12-20 09:07:05 +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
jkummerow@chromium.org
e318155c6e
Revert "Remove redundant loads in DoCheckMaps"
...
This reverts r13200.
TBR=svenpanne@chromium.org
Review URL: https://codereview.chromium.org/11552017
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13206 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2012-12-12 12:51:47 +00:00
danno@chromium.org
3f83e10f44
Remove redundant loads in DoCheckMaps
...
Hoist the loop-invariant load out of the loop and call the other CheckMap function
BUG=none
TEST=none
Review URL: https://chromiumcodereview.appspot.com/11369014
Patch from Rajeev Krithivasan <rkrithiv@codeaurora.org>.
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13200 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2012-12-11 20:33:44 +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
ulan@chromium.org
c5c8276f59
Improve double to integer truncation on ARM.
...
BUG=none
TEST=none
Review URL: https://chromiumcodereview.appspot.com/11412272
Patch from Rodolph Perfetta <rodolph.perfetta@gmail.com>.
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13162 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2012-12-07 11:29:27 +00:00
yangguo@chromium.org
c75ca45000
Improve array to string conversion.
...
BUG=v8:2435
Review URL: https://chromiumcodereview.appspot.com/11348349
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13144 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2012-12-05 15:49:22 +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
ulan@chromium.org
45fc19124f
ARM: make MacroAssembler::LoadRoot emit exactly one instruction when in predictable code size scope.
...
BUG=v8:2439
R=danno@chromium.org
Review URL: https://chromiumcodereview.appspot.com/11280276
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13113 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2012-12-03 13:40:37 +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
svenpanne@chromium.org
5a4e0f1c79
Simplify and fix code aging.
...
Making the code size predictable is hard, and to make things even more
complicated, the start of a function can contain various stuff like calls to a
profiling hook, receiver adjustment or dynamic frame alignment. Instead of
tackling all these problems separately, we now simply record the offset where
patching should happen later in the Code object itself.
Review URL: https://codereview.chromium.org/11316218
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13081 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2012-11-29 07:38:00 +00:00
jkummerow@chromium.org
79563b22c9
Faster implementation of Math.exp()
...
Review URL: https://codereview.chromium.org/11418149
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13054 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2012-11-26 13:12:35 +00:00
mmassi@chromium.org
a0582112f8
Revert r13025 and r13026 (they introduced a bug on arm and regressed octane crypto).
...
BUG=
Review URL: https://chromiumcodereview.appspot.com/11316151
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13039 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2012-11-23 10:53:03 +00:00
svenpanne@chromium.org
9de70742a6
PredictableCodeSizeScope checks the expected size now.
...
We still have some problems on ARM, so the size check currently
optional. Furthermore, we don't use PredictableCodeSizeScope at all
place where we should do it. Both issues are cleaned up in upcoming
CLs.
Review URL: https://codereview.chromium.org/11348195
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13037 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2012-11-22 14:59:52 +00:00
mmassi@chromium.org
5e7f30a596
Use the property load IC for accessing the array length.
...
BUG=
Review URL: https://chromiumcodereview.appspot.com/11299004
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13025 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2012-11-21 11:49:15 +00:00
ulan@chromium.org
6a6012c0e7
Emit RSB for subtraction with constant lhs on ARM
...
Instead of generating the following for "100 - x":
mov r1, #100
subs r0, r1, r0
this patch makes Crankshaft generate this:
rsbs r0, r0, #100
thus saving a register and a mov.
BUG=
Review URL: https://chromiumcodereview.appspot.com/11308040
Patch from Hans Wennborg <hans@chromium.org>.
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13017 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2012-11-20 14:46:16 +00:00
jkummerow@chromium.org
1c086d1202
Lattice-based representation inference, powered by left/right specific type feedback for BinaryOps and comparisons
...
Review URL: https://chromiumcodereview.appspot.com/10837165
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12961 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2012-11-14 15:59:45 +00:00
ulan@chromium.org
74492ab2d4
Emit VMLA for multiply-add on ARM
...
Review URL: https://chromiumcodereview.appspot.com/11293061
Patch from Hans Wennborg <hans@chromium.org>.
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12958 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2012-11-14 11:01:18 +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
63ada1da1b
Move vldr in DoLoadKeyedFastDoubleElement before the hole check
...
This reschedules instructions to better absorb VFP load latency.
BUG=none
TEST=none
Review URL: https://codereview.chromium.org/11363086
Patch from Rajeev Krithivasan <rkrithiv@codeaurora.org>.
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12890 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2012-11-07 21:38:46 +00:00
ulan@chromium.org
f106c9c9f7
Add rotate-right instruction to hydrogen and use it instead of bitwise operations
...
of the form ((x >>> i) | (x << (32 - i))).
This CL is based on https://chromiumcodereview.appspot.com/10984057/
by Jay Conrod <dconrod@codeaurora.org>.
R=danno@chromium.org ,mstarzinger@chromium.org,dconrod@codeaurora.org
Review URL: https://chromiumcodereview.appspot.com/11033005
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12855 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2012-11-05 13:28:10 +00:00
svenpanne@chromium.org
9de1d40d28
Improve handling of property loads on the proto chain.
...
Previously Crankshaft emitted a generic load for these, now we emit a load of a
named field, guarded by a proto chain check.
LCheckPrototypeMaps now returns the holder, which is for free, because it
already had to check its map as the last step, anyway. This is in sync with what
StubCompiler::CheckPrototype does.
Review URL: https://codereview.chromium.org/11338030
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12847 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2012-11-05 08:53:54 +00:00
mvstanton@chromium.org
a85fd03caa
Consolidated all the key store/load classes in the Hydrogen and Lithium
...
space into just two:
HLoadKeyed/HLoadKeyedGeneric and HStoreKeyed/HStoreKeyedGeneric
LLoadKeyed/LLoadKeyedGeneric and LStoreKeyed/LStoreKeyedGeneric
BUG=
Review URL: https://codereview.chromium.org/11238016
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12839 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2012-11-02 09:18:53 +00:00
danno@chromium.org
e96d49047b
Remove redundant jump to deoptimization (the jump already exists in DoCheckMapCommon)
...
BUG=none
TEST=none
Review URL: https://codereview.chromium.org/11265044
Patch from Rajeev Krithivasan <rkrithiv@codeaurora.org>.
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12828 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2012-10-29 11:45:40 +00:00
verwaest@chromium.org
c9e86f4b69
Remove scratch register requirement from LoadInstanceDescriptors on arm and mips.
...
Review URL: https://chromiumcodereview.appspot.com/11193022
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12776 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2012-10-19 12:39:59 +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
svenpanne@chromium.org
5a0176222b
Consistently make the bounds check for AccessArgumentsAt explicit.
...
This has the advantage that AccessArgumentsAt itself can't deopt anymore and the
bounds check is visible for the elimination phase. Furthermore, things are
simply more consistent now, a good thing in itself. :-)
Review URL: https://codereview.chromium.org/11106012
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12721 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2012-10-15 07:25:20 +00:00
svenpanne@chromium.org
1f3bdabd80
Ensure that we do not accidentally emit debug code.
...
The call sites are more concise, the naming is better and at least one
case of superfluous code in release mode was removed.
R=mstarzinger@chromium.org
Review URL: https://codereview.chromium.org/11108011
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12712 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2012-10-12 11:09:14 +00:00
danno@chromium.org
0457a3be0a
DoNumberTagD performance improvement
...
Allocate heap entry untagged and tag at end to avoid having to subtract off
the tag offset before storing the value.
BUG=
Review URL: https://codereview.chromium.org/11028115
Patch from Anthony Berent <aberent@chromium.org>.
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12711 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2012-10-12 10:58:25 +00:00
danno@chromium.org
0a41d2731c
ARM: Fast path for integer inputs to EmitVFPTruncate
...
BUG=none
TEST=none
Review URL: https://codereview.chromium.org/11049025
Patch from Martyn Capewell <m.m.capewell@googlemail.com>.
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12676 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2012-10-08 12:50:15 +00:00
ulan@chromium.org
a80f7f42dd
Make sure all labels are bound and linked in ARM DoModI.
...
BUG=v8:2354
TBR=danno@chromium.org ,subratokde@codeaurora.org
Review URL: https://chromiumcodereview.appspot.com/11038017
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12656 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2012-10-02 16:48:45 +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
danno@chromium.org
c467b2659f
ARM: Small optimisation of VFP immediate creation
...
Save an instruction in VFP immediate creation by passing a scratch register.
BUG=none
TEST=none
Review URL: https://chromiumcodereview.appspot.com/10990024
Patch from Martyn Capewell <m.m.capewell@googlemail.com>.
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12605 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2012-09-25 14:32:07 +00:00
svenpanne@chromium.org
6f5d872410
Consistently use named getters for Lithium operands on ARM.
...
Removed a dead Lithium instruction on the way.
Review URL: https://codereview.chromium.org/10907234
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12527 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2012-09-17 10:54:26 +00:00
mstarzinger@chromium.org
f37f504de5
Fix arguments object materialization during deopt.
...
This fixes materialization of arguments objects for strict mode functions during
deoptimization. We materialize arguments from the stack area where optimized
code pushes the arguments when entering the inlined environment. For adapted
invocations we use the arguments adaptor frame for materialization.
R=svenpanne@chromium.org
BUG=v8:2261
TEST=mjsunit/regress/regress-2261,mjsunit/compiler/inline-arguments
Review URL: https://chromiumcodereview.appspot.com/10908194
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12489 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2012-09-12 12:28:42 +00:00
ulan@chromium.org
a9162af1af
Fix delta computation in DoDeferredInstanceOfKnownGlobal() for ARM.
...
BUG=v8:2314
R=yangguo@chromium.org
Review URL: https://chromiumcodereview.appspot.com/10908195
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12478 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2012-09-11 11:36:48 +00:00
yangguo@chromium.org
1a0c14f12c
Add checks to runtime functions.
...
BUG=
Review URL: https://chromiumcodereview.appspot.com/10915062
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12471 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2012-09-10 08:35:26 +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
yangguo@chromium.org
2e652e6f91
Fix VS2005 build.
...
R=jkummerow@chromium.org
BUG=v8:2313
Review URL: https://chromiumcodereview.appspot.com/10907029
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12420 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2012-08-31 14:45:31 +00:00