fschneider@chromium.org
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0556f87851
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Optimize ~~(expr) in optimized code.
~~ is commonly used to truncate a value to int32 (ToInt32).
This change avoid actually emitting the bitwise operations, and
just truncates the subexpression of ~~.
BUG=v8:2037
TEST=test/mjsunit/compiler/optimize-bitnot.js
Review URL: https://chromiumcodereview.appspot.com/10123007
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11390 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
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2012-04-19 13:24:15 +00:00 |
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