AuroraMiddleware/v8
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25 Commits

Author SHA1 Message Date
ishell@chromium.org
1342cb8b00 Bugfix in check elimination with a regression test. 
R=verwaest@chromium.org

Review URL: https://codereview.chromium.org/172173003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19481 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-02-19 12:34:50 +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
verwaest@chromium.org
161b2f689a Reland: "Use stability to only conditionally flush information from the CheckMaps table." 
BUG=
R=ishell@chromium.org

Original CL: https://codereview.chromium.org/153823003

Review URL: https://codereview.chromium.org/153653007

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19342 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-02-12 18:48:12 +00:00
verwaest@chromium.org
7b7e3658f7 Don't propagate information through phis in loop headers. 
To properly do this, we'd have to iterate over CompareMaps (and their bodies) handling phis, until we have learned enough to decide which paths can be taken. For now, just disable learning from phis in loop headers.

BUG=
R=ishell@chromium.org

Review URL: https://codereview.chromium.org/147023005

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19341 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-02-12 18:30:41 +00:00
verwaest@chromium.org
75432b7696 Revert "Use stability to only conditionally flush information from the CheckMaps table." 
R=ishell@chromium.org

BUG=

Review URL: https://codereview.chromium.org/137863005

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19331 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-02-12 15:38:42 +00:00
verwaest@chromium.org
2b7d33572a Use stability to only conditionally flush information from the CheckMaps table. 
BUG=
R=ishell@chromium.org

Review URL: https://codereview.chromium.org/153823003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19330 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-02-12 15:07:41 +00:00
ishell@chromium.org
b446674c85 More check elimination improvements including partial learning on false branches of CompareMap and better handling of unreachable blocks. 
R=verwaest@chromium.org

Review URL: https://codereview.chromium.org/159963002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19300 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-02-11 19:18:06 +00:00
bmeurer@chromium.org
a5ef6e5eec Improve inobject field tracking during GVN. 
Now stores to inobject fields do no longer prevent hoisting
and combining of loads from other inobject fields.

R=mstarzinger@chromium.org

Review URL: https://codereview.chromium.org/144423010

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19249 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-02-11 06:53:14 +00:00
bmeurer@chromium.org
40f3b1ba87 Revert "Improve inobject field tracking during GVN." 
This reverts commit r19427 for breaking the build. Will reland with
fix.

TBR=mstarzinger@chromium.org

Review URL: https://codereview.chromium.org/143203005

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19248 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-02-11 06:46:14 +00:00
bmeurer@chromium.org
cd1b7df638 Improve inobject field tracking during GVN. 
Now stores to inobject fields do no longer prevent hoisting
and combining of loads from other inobject fields.

R=mstarzinger@chromium.org

Review URL: https://codereview.chromium.org/144423010

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19247 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-02-11 06:41:06 +00:00
ishell@chromium.org
f46da9d43b Reland of r19102: Check elimination improvement: propagation of state through phis is supported, CheckMap narrowing implemented with tests. 
R=verwaest@chromium.org

Review URL: https://codereview.chromium.org/146623006

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19229 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-02-10 15:32:54 +00:00
bmeurer@chromium.org
2b60325def [Sheriff] Revert "Check elimination temporarily disabled.", "Fix for buildbot failure after r19102." and "Check elimination improvement: propagation of state through phis is supported, CheckMap narrowing implemented." 
This reverts commit r19102, r19105 and r19170 for breaking the
Chrome browser_tests. Will reland once fixed.

R=ishell@chromium.org

Review URL: https://codereview.chromium.org/130053007

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19179 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-02-07 07:36:30 +00:00
ishell@chromium.org
9743d254f3 Fix for buildbot failure after r19102. 
R=verwaest@chromium.org

Review URL: https://codereview.chromium.org/149093011

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19105 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-02-05 15:22:54 +00:00
ishell@chromium.org
a11899ff4e Check elimination improvement: propagation of state through phis is supported, CheckMap narrowing implemented. 
R=titzer@chromium.org

Review URL: https://codereview.chromium.org/141653009

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19102 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-02-05 13:39:55 +00:00
bmeurer@chromium.org
8150c34c82 Optimize redundant HCompareMap instructions with known successors. 
R=ishell@chromium.org

Review URL: https://codereview.chromium.org/150663005

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19094 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-02-05 09:30:53 +00:00
ishell@chromium.org
9070615980 Fix for potential issue related to replacing CheckMaps with values. 
R=titzer@chromium.org

Review URL: https://codereview.chromium.org/134733007

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@18887 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-01-28 17:49:13 +00:00
ishell@chromium.org
5dafb426b3 Flow engine fixes: unreachable block processing, state merging. 
R=titzer@chromium.org

Review URL: https://codereview.chromium.org/144013003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@18885 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-01-28 16:57:39 +00:00
jkummerow@chromium.org
5298a078c6 Revert "Eliminatable CheckMaps replaced with if(true) or if(false)." 
This reverts r18592 for breaking the GC stress bots.

R=machenbach@chromium.org

Review URL: https://codereview.chromium.org/137783011

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@18611 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-01-15 09:53:54 +00:00
ishell@chromium.org
952fbe475f Eliminatable CheckMaps replaced with if(true) or if(false). 
R=titzer@chromium.org

Review URL: https://codereview.chromium.org/130613003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@18592 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2014-01-14 16:06:40 +00:00
titzer@chromium.org
1f679a58f7 Improve check elimination with branch sensitivity on HCompareObjectEqAndBranch. 
BUG=
R=mvstanton@chromium.org

Review URL: https://codereview.chromium.org/106733002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@18377 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-12-19 17:42:21 +00:00
titzer@chromium.org
16c4c14fac Check elimination: Learn from if(CompareMap(x)) on true branch. 
BUG=
R=verwaest@chromium.org

Review URL: https://codereview.chromium.org/99043002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@18210 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-12-02 18:34:33 +00:00
titzer@chromium.org
425f3fde00 Eliminate HCheckHeapObject instructions in check elimination. 
BUG=
R=verwaest@chromium.org

Review URL: https://codereview.chromium.org/95263005

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@18160 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-11-29 12:37:35 +00:00
titzer@chromium.org
5afd609aa1 Remove static asserts that dont compile on windows 
TBR=mvstanton

BUG=

Review URL: https://codereview.chromium.org/95493002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@18138 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-11-28 16:14:54 +00:00
titzer@chromium.org
6e5e23d630 Implement global check elimination using the HFlowEngine. 
BUG=
R=mvstanton@chromium.org

Review URL: https://codereview.chromium.org/46883009

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@18137 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-11-28 15:50:54 +00:00
titzer@chromium.org
d441160cab Implement local check elimination on basic blocks. 
BUG=
R=mstarzinger@chromium.org

Review URL: https://codereview.chromium.org/23866016

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16970 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-09-26 16:25:57 +00:00