Closed
Bug 1111218
Opened 10 years ago
Closed 10 years ago
Fold congruent type barriers
Categories
(Core :: JavaScript Engine: JIT, defect)
Core
JavaScript Engine: JIT
Tracking
()
RESOLVED
FIXED
mozilla37
People
(Reporter: jandem, Assigned: jandem)
References
(Blocks 1 open bug)
Details
Attachments
(1 file)
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(deleted),
patch
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bhackett1024
:
review+
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Details | Diff | Splinter Review |
The testcase in bug 1111000 uses a lot of variables in an outer scope, so we have GETALIASEDVAR ops with type barriers. We're able to fold the loads but not the type barriers, so we end up with many barriers testing the same types and this also inhibits other GVN optimizations.
This patch allows us to fold them and is at least a 10% win on that testcase.
Attachment #8536029 -
Flags: review?(bhackett1024)
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Updated•10 years ago
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Attachment #8536029 -
Flags: review?(bhackett1024) → review+
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Assignee | |
Comment 1•10 years ago
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Comment 2•10 years ago
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Status: ASSIGNED → RESOLVED
Closed: 10 years ago
Resolution: --- → FIXED
Target Milestone: --- → mozilla37
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Description
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