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246 Commits

Author SHA1 Message Date
jarin
8d2e45669f [turbofan] First shot at eager deoptimization in Turbofan. 
BUG=

Review URL: https://codereview.chromium.org/961973002

Cr-Commit-Position: refs/heads/master@{#26993}
 2015-03-04 15:21:21 +00:00
mstarzinger
d016387e81 [turbofan] Add test coverage for deopt within try-catch. 
This just contains test, no fixes. Note that some of the tests are
still disabled because they either fail or we don't want ClusterFuzz
to pick up the flag yet.

R=jarin@chromium.org
TEST=cctest/test-run-jsexceptions/Deopt,mjsunit/compiler/try-deopt

Review URL: https://codereview.chromium.org/972943004

Cr-Commit-Position: refs/heads/master@{#26968}
 2015-03-03 17:23:42 +00:00
Jaroslav Sevcik
f0b11873a3 [turbofan] Fix deferred replacement in simplified lowering. 
Deferred replacement must also replace in the pending node vector.

BUG=chromium:463056
LOG=n
R=bmeurer@chromium.org

Review URL: https://codereview.chromium.org/966423002

Cr-Commit-Position: refs/heads/master@{#26938}
 2015-03-02 12:49:49 +00:00
titzer
d050c331eb [turbofan] Simplify context specialization and fix for OSR. 
AstGraphBuilder puts a constant context in from the beginning.
Also fix bug in merging contexts in environment.

R=mstarzinger@chromium.org
BUG=

Review URL: https://codereview.chromium.org/934293002

Cr-Commit-Position: refs/heads/master@{#26745}
 2015-02-19 11:36:50 +00:00
titzer
71765afff9 [turbofan] Rename context stack as part of the environment for OSR. 
R=mstarzinger@chromium.org
BUG=

Review URL: https://codereview.chromium.org/921083004

Cr-Commit-Position: refs/heads/master@{#26705}
 2015-02-17 18:10:11 +00:00
jarin
0b8063cec8 [turbofan] Avoid ToNumber conversions if they could deoptimize. 
BUG=chromium:454158
LOG=n
R=bmeurer@chromium.org

Review URL: https://codereview.chromium.org/922623002

Cr-Commit-Position: refs/heads/master@{#26661}
 2015-02-16 12:59:20 +00:00
titzer
31637fb396 [turbofan] Use heavy-handed graph duplication to do loop peeling for OSR. 
BUG=

Review URL: https://codereview.chromium.org/898353002

Cr-Commit-Position: refs/heads/master@{#26576}
 2015-02-11 13:26:45 +00:00
titzer
1db760de7d Reduce the number of iterations in some OSR tests by using an explicit %OptimizeOsr(). 
R=mstarzinger@chromium.org
BUG=

Review URL: https://codereview.chromium.org/913463002

Cr-Commit-Position: refs/heads/master@{#26540}
 2015-02-10 09:53:22 +00:00
titzer
4c302ca290 Make it easier to test OSR with %OptimizeOsr() runtime call. 
This call triggers OSR for the current function. And also allows explicitly testing OSR on the top-level code.

R=mstarzinger@chromium.org
BUG=

Review URL: https://codereview.chromium.org/906243002

Cr-Commit-Position: refs/heads/master@{#26523}
 2015-02-09 12:47:43 +00:00
titzer
79cad15cb0 Speed up tests for OSR of for-in and for-of loops. 
R=marja@chromium.org
BUG=

Review URL: https://codereview.chromium.org/889293003

Cr-Commit-Position: refs/heads/master@{#26378}
 2015-02-02 11:52:07 +00:00
titzer
e25a0f7e4e [turbofan] Fix usage of ThisFunction parameter in OSR. 
R=mstarzinger@chromium.org
BUG=

Review URL: https://codereview.chromium.org/892593002

Cr-Commit-Position: refs/heads/master@{#26355}
 2015-01-30 13:09:44 +00:00
titzer
11311c083a [turbofan] Fix OSR compilations of for-in. 
R=mstarzinger@chromium.org
LOG=Y
BUG=

Review URL: https://codereview.chromium.org/890543002

Cr-Commit-Position: refs/heads/master@{#26333}
 2015-01-29 17:40:23 +00:00
jarin
a4b163a940 [turbofan] Make sure there is space for lazy deopt patching before the constant pool. 
BUG=chromium:446647
LOG=n
R=bmeurer@chromium.org

Review URL: https://codereview.chromium.org/874863003

Cr-Commit-Position: refs/heads/master@{#26327}
 2015-01-29 15:30:32 +00:00
titzer
f5479ca675 [turbofan] Gracefully bail out if OSR encounters a loop too deeply nested. 
R=jarin@chromium.org
BUG=

Review URL: https://codereview.chromium.org/877553007

Cr-Commit-Position: refs/heads/master@{#26318}
 2015-01-29 09:46:36 +00:00
jarin
489b6f7c60 [turbofan] Add missing deopt for the assignment in the for-in statement. 
BUG=chromium:416359
LOG=n
R=mstarzinger@chromium.org

Review URL: https://codereview.chromium.org/881303002

Cr-Commit-Position: refs/heads/master@{#26309}
 2015-01-28 16:16:24 +00:00
jarin
b4a4c4c591 [turbofan] Only replace nodes eagerly during simplified lowering if the types stay the same. 
BUG=chromium:452427
LOG=n
R=bmeurer@chromium.org

Review URL: https://codereview.chromium.org/871373010

Cr-Commit-Position: refs/heads/master@{#26286}
 2015-01-27 09:27:37 +00:00
jarin
4c79f55c32 [turbofan] Handle cyclic dependencies in context typing. 
BUG=chromium:451012
LOG=n
R=bmeurer@chromium.org

Review URL: https://codereview.chromium.org/874983002

Cr-Commit-Position: refs/heads/master@{#26281}
 2015-01-27 06:57:41 +00:00
mstarzinger
209b771431 Enable test coverage for test coverage. 
R=titzer@chromium.org
TEST=mjsunit/compiler/opt-next-call-turbo

Review URL: https://codereview.chromium.org/822673003

Cr-Commit-Position: refs/heads/master@{#26192}
 2015-01-21 14:07:19 +00:00
Michael Starzinger
cecd89c2c6 Disable new test failing since 79748e3f7c. 
TBR=titzer@chromium.org
TEST=mjsunit/compiler/opt-next-call-turbo

Review URL: https://codereview.chromium.org/862533002

Cr-Commit-Position: refs/heads/master@{#26143}
 2015-01-19 16:17:07 +00:00
mstarzinger
79748e3f7c Remove overzealous check from %OptimizeFunctionOnNextCall. 
R=titzer@chromium.org

Review URL: https://codereview.chromium.org/863443003

Cr-Commit-Position: refs/heads/master@{#26142}
 2015-01-19 15:52:00 +00:00
jarin
ac04d777d6 [turbofan] Allow deoptimization for JSToNumber operator. 
R=bmeurer@chromium.org

Review URL: https://codereview.chromium.org/841443004

Cr-Commit-Position: refs/heads/master@{#26053}
 2015-01-14 13:09:32 +00:00
bmeurer
70b32e4b8a [turbofan] Fix truncation/representation sloppiness wrt. bool/bit. 
TEST=cctest,mjsunit,unittests
BUG=v8:3812
LOG=y

Review URL: https://codereview.chromium.org/850013003

Cr-Commit-Position: refs/heads/master@{#26051}
 2015-01-14 12:06:56 +00:00
jarin
527e19afd5 [turbofan] Add missing deopt. 
BUG=chromium:447567
LOG=n
R=bmeurer@chromium.org

Review URL: https://codereview.chromium.org/809463005

Cr-Commit-Position: refs/heads/master@{#26033}
 2015-01-13 08:40:54 +00:00
titzer
159b14172f [turbofan] Implement OSR for outer loops. 
R=bmeurer@chromium.org
BUG=

Review URL: https://codereview.chromium.org/809333002

Cr-Commit-Position: refs/heads/master@{#26020}
 2015-01-12 11:39:58 +00:00
bmeurer
fec1bba852 [turbofan] Correctify representation changes to bit. 
TEST=cctest/test-representation-change,unittests,mjsunit/compiler/regress-bit-number-constant
R=jarin@chromium.org

Review URL: https://codereview.chromium.org/840953003

Cr-Commit-Position: refs/heads/master@{#25987}
 2015-01-08 09:48:41 +00:00
bmeurer
d1c1a3c48f [turbofan] Fix bit representation of NumberConstant. 
TEST=mjsunit/compiler/regress-bit-number-constant

Review URL: https://codereview.chromium.org/839813002

Cr-Commit-Position: refs/heads/master@{#25979}
 2015-01-07 15:44:22 +00:00
jarin
80a7be5cd9 Restrict representation inference to avoid truncation of phi inputs. 
BUG=chromium:446778
LOG=N

Review URL: https://codereview.chromium.org/837153002

Cr-Commit-Position: refs/heads/master@{#25967}
 2015-01-07 11:38:54 +00:00
jarin
a9716d9840 Make control reducer revisit newly introduced merges. 
TEST=mjsunit/compiler/regress-445876
BUG=chromium:445876
LOG=N

Review URL: https://codereview.chromium.org/830293003

Cr-Commit-Position: refs/heads/master@{#25959}
 2015-01-05 16:35:34 +00:00
Benedikt Meurer
17a180842e [turbofan] Don't crash when typing load from a Uint8ClampedArray. 
TEST=mjsunit/compiler/regress-446156
BUG=chromium:446156
LOG=y
R=jarin@chromium.org

Review URL: https://codereview.chromium.org/835883003

Cr-Commit-Position: refs/heads/master@{#25957}
 2015-01-05 13:43:47 +00:00
jarin
bdf446f590 Do not reduce effect phis for loops. 
This prevents eliminating effectful statements before the loop.

BUG=

Review URL: https://codereview.chromium.org/830923002

Cr-Commit-Position: refs/heads/master@{#25953}
 2015-01-03 12:46:00 +00:00
bmeurer
fb2643c858 [turbofan] Truncation of Bit/Word8/16 to Word32 is a no-op. 
TEST=mjsunit/compiler/regress-445859
BUG=chromium:445859
LOG=y
R=jarin@chromium.org

Review URL: https://codereview.chromium.org/828313002

Cr-Commit-Position: refs/heads/master@{#25951}
 2015-01-02 10:39:10 +00:00
bmeurer
cf866b7c61 [x64] Rearrange code for OOB integer loads. 
We cannot just clear the result register optimistically, because the
register allocator might assign the same register to result and buffer.

TEST=mjsunit/compiler/regress-445858
BUG=chromium:445858
LOG=y
R=jarin@chromium.org

Review URL: https://codereview.chromium.org/828303002

Cr-Commit-Position: refs/heads/master@{#25950}
 2015-01-02 10:15:40 +00:00
bmeurer
a64ac4575a Fix %NeverOptimizeFunction() intrinsic. 
Set a valid reason for disabling optimization when using
%NeverOptimizeFunction.

TEST=mjsunit/compiler/regress-445732
BUG=chromium:445732
LOG=y
TBR=machenbach@chromium.org

Review URL: https://codereview.chromium.org/832003002

Cr-Commit-Position: refs/heads/master@{#25949}
 2015-01-02 08:18:01 +00:00
bmeurer
ef41f70684 [turbofan] Fix invalid bounds check with overflowing offset. 
TEST=mjsunit/compiler/regress-445267
BUG=chromium:445267
LOG=y

Review URL: https://codereview.chromium.org/825403002

Cr-Commit-Position: refs/heads/master@{#25945}
 2014-12-29 10:01:15 +00:00
bmeurer
b5e8dd0e12 [turbofan] Raise max virtual registers and call parameter limit. 
Change InstructionOperand to use a 64-bit field for encoding the operand
information instead of the 32-bit field that was used before. Ideally we
wouldn't use the Zone-allocated bit field at all, and use an integer
instead of the pointer; but that requires fixing the register allocator
first, which will take some time.

TEST=mjsunit/compiler/regress-3786
BUG=v8:3786
LOG=y

Review URL: https://codereview.chromium.org/826673002

Cr-Commit-Position: refs/heads/master@{#25941}
 2014-12-25 18:18:04 +00:00
Benedikt Meurer
3f00ce2d59 [turbofan] Fix missing ChangeUint32ToUint64 in lowering of LoadBuffer. 
TEST=mjsunit/compiler/regress-444695
BUG=chromium:444695
LOG=y
R=hpayer@chromium.org

Review URL: https://codereview.chromium.org/824843002

Cr-Commit-Position: refs/heads/master@{#25932}
 2014-12-23 06:54:00 +00:00
Benedikt Meurer
65e69497ab [turbofan] Correctify lowering of Uint8ClampedArray buffer access. 
TEST=mjsunit/compiler/regress-444508.js
BUG=chromium:444508
LOG=y
R=machenbach@chromium.org

Review URL: https://codereview.chromium.org/794013004

Cr-Commit-Position: refs/heads/master@{#25916}
 2014-12-22 08:27:59 +00:00
Benedikt Meurer
f7e4689061 [turbofan] Fix unsafe out-of-bounds check for checked loads/stores. 
BUG=chromium:443744
LOG=y
TEST=mjsunit/compiler/regress-443744
R=svenpanne@chromium.org

Review URL: https://codereview.chromium.org/804993004

Cr-Commit-Position: refs/heads/master@{#25901}
 2014-12-19 12:53:29 +00:00
Benedikt Meurer
14409abc22 [turbofan] Quickfix for invalid number truncation of typed array loads. 
TEST=mjsunit/compiler/regress-int32array-outofbounds-nan
R=jarin@chromium.org

Review URL: https://codereview.chromium.org/803483002

Cr-Commit-Position: refs/heads/master@{#25793}
 2014-12-12 10:45:38 +00:00
Benedikt Meurer
19418d76df [x64] Fix optimization for certain checked load/stores. 
BUG=chromium:439743
LOG=y
TEST=mjsunit
R=svenpanne@chromium.org

Review URL: https://codereview.chromium.org/733893008

Cr-Commit-Position: refs/heads/master@{#25731}
 2014-12-10 07:49:12 +00:00
Benedikt Meurer
48a6766e78 [x86] Disable invalid checked load/store optimization. 
TEST=mjsunit/compiler/regress-lena
R=svenpanne@chromium.org

Review URL: https://codereview.chromium.org/784153006

Cr-Commit-Position: refs/heads/master@{#25722}
 2014-12-09 14:16:34 +00:00
jarin
322bb23e82 [turbofan] Insert appropriate conversions for typed array stores. 
BUG=

Review URL: https://codereview.chromium.org/758643003

Cr-Commit-Position: refs/heads/master@{#25496}
 2014-11-25 08:40:29 +00:00
svenpanne
be0fcaa2bc Added test cases for truncating stores. 
Review URL: https://codereview.chromium.org/741643003

Cr-Commit-Position: refs/heads/master@{#25474}
 2014-11-24 10:42:26 +00:00
yangguo
61bee5c898 Correctly escape RegExp source. 
R=ulan@chromium.org
BUG=v8:3229
LOG=N

Review URL: https://codereview.chromium.org/736003002

Cr-Commit-Position: refs/heads/master@{#25457}
 2014-11-21 10:50:24 +00:00
danno@chromium.org
9a58807030 [turbofan] Optimize add operations to use 'leal' instruction on x64 
Add MemoryOperandMatcher that recognizes node clusters in the form
[%r1 + %r2*SCALE + OFFSET] and explicit support in the x64 Int32Add
selector to use it to translate complex adds to 'leal' instructions.

R=titzer@chromium.org

Review URL: https://codereview.chromium.org/704713003

Cr-Commit-Position: refs/heads/master@{#25223}
git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@25223 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-11-07 16:47:45 +00:00
jarin@chromium.org
364cec0034 [turbofan] Fix deoptimization of uint8, uint16 inputs. 
BUG=
R=mstarzinger@chromium.org

Review URL: https://codereview.chromium.org/707443003

Cr-Commit-Position: refs/heads/master@{#25214}
git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@25214 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-11-07 14:07:45 +00:00
dcarney@chromium.org
a350f0d608 [turbofan] phis cannot take registers as inputs 
BUG=
R=bmeurer@chromium.org

Review URL: https://codereview.chromium.org/704153002

Cr-Commit-Position: refs/heads/master@{#25191}
git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@25191 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-11-06 12:56:44 +00:00
bmeurer@chromium.org
017c518321 [x86] Fix register constraints for multiply high and modulus. 
R=jarin@chromium.org
TEST=mjsunit/compiler/regress-register-allocator2

Review URL: https://codereview.chromium.org/697053002

Cr-Commit-Position: refs/heads/master@{#25054}
git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@25054 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-11-03 06:28:12 +00:00
bmeurer@chromium.org
548fb46331 [x86] Fix register constraints for multiply-high. 
TEST=mjsunit/compiler,unittests
R=titzer@chromium.org

Review URL: https://codereview.chromium.org/671393002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24862 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-10-24 09:36:40 +00:00
verwaest@chromium.org
23868b419c Optimize Function.prototype.call 
BUG=
R=verwaest@chromium.org, jarin@chromium.org, jkummerow@chromium.org

Review URL: https://codereview.chromium.org/588573002

Patch from Petka Antonov <p.antonov@partner.samsung.com>.

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24631 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-10-15 12:22:15 +00:00