Issue 10861017: Fix performance regression introduced by new equality semantic: we do not collect ICData when compa…

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Issue 10861017: Fix performance regression introduced by new equality semantic: we do not collect ICData when compa… (Closed)

Created:
8 years, 4 months ago by srdjan

Modified:
8 years, 4 months ago

Reviewers:
regis

CC:
reviews_dartlang.org, vm-dev_dartlang.org

Base URL:
http://dart.googlecode.com/svn/branches/bleeding_edge/dart/

Visibility:
Public.

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Description

Fix performance regression introduced by new equality semantic: we do not collect ICData when comparing with NULL. For now recognize left/right inputs as being null constant and convert the equality tests to strict-equality. There is still a problem if one of the equality arguments is always null but not a constant. Committed: https://code.google.com/p/dart/source/detail?r=11001

Patch Set 1 #

Created: 8 years, 4 months ago

Download [raw] [tar.bz2]

		Unified diffs	Side-by-side diffs	Delta from patch set	Stats (+26 lines, -0 lines)			Patch
	M	runtime/vm/flow_graph_optimizer.h	View		1 chunk	+1 line, -0 lines	0 comments	Download
	M	runtime/vm/flow_graph_optimizer.cc	View		2 chunks	+25 lines, -0 lines	0 comments	Download

Messages

Total messages: 2 (0 generated)

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LGTM

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