RESOLVED FIXED 22238
Avoid unnecessary reads of temporaries when the target machine register is not eax
https://bugs.webkit.org/show_bug.cgi?id=22238
Summary Avoid unnecessary reads of temporaries when the target machine register is no...
Cameron Zwarich (cpst)
Reported 2008-11-13 13:49:32 PST
Currently we don't apply the optimization of not reading a value back from memory that we just wrote when the target machine register is not eax. A few opcodes will read into edx and not read into eax. In these cases we could just do a register-register move.
Attachments
Proposed patch (deleted)
2008-11-13 14:04 PST, Cameron Zwarich (cpst)
darin: review+
Cameron Zwarich (cpst)
Comment 1 2008-11-13 14:04:14 PST
Created attachment 25134 [details] Proposed patch
Darin Adler
Comment 2 2008-11-13 14:09:08 PST
Comment on attachment 25134 [details] Proposed patch r=me
Cameron Zwarich (cpst)
Comment 3 2008-11-19 13:08:35 PST
Landed in r38377.
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