[Webkit-unassigned] [Bug 171131] New: Air::fixObviousSpills should remove totally redundant instructions
bugzilla-daemon at webkit.org
bugzilla-daemon at webkit.org
Fri Apr 21 12:48:57 PDT 2017
https://bugs.webkit.org/show_bug.cgi?id=171131
Bug ID: 171131
Summary: Air::fixObviousSpills should remove totally redundant
instructions
Product: WebKit
Version: WebKit Nightly Build
Hardware: All
OS: All
Status: NEW
Severity: Normal
Priority: P2
Component: JavaScriptCore
Assignee: webkit-unassigned at lists.webkit.org
Reporter: fpizlo at apple.com
If you know that (blah) and %foo are n-bit aliased and you do an n-bit move from (blah) to %foo or vice-versa, then you can remove the move.
If you know that (blah) and $42 are n-bit aliased and you do an n-bit move from $42 to (blah), then you can remove the move.
If you know that %foo and $42 are n-bit aliased and you do an n-bit move from $42 to %foo, then you can remove the move.
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