RESOLVED FIXED 136435
offlineasm generates suboptimal code for move immediate on ARM64 
https://bugs.webkit.org/show_bug.cgi?id=136435
Summary offlineasm generates suboptimal code for move immediate on ARM64
Akos Kiss
Reported 2014-09-01 13:51:00 PDT
emitARM64MoveImmediate generates a slightly suboptimal code if value is greater than 0xffff but the last 16 bits are all zeros, or less than ~0xffff but the last 16 bits are all ones. E.g., move 0xffff000000000000, csr1 in LowLevelInterpreter64.asm becomes movz x27, #65535, lsl #48 movk x27, #0, lsl #0
Attachments
Proposed patch. (1.84 KB, patch)
2014-09-01 14:26 PDT, Akos Kiss 		no flags
DetailsFormatted DiffDiff
View All Add attachment proposed patch, testcase, etc.
Akos Kiss
Comment 1 2014-09-01 14:26:17 PDT
Created attachment 237462 [details] Proposed patch.
Michael Saboff
Comment 2 2014-09-03 06:40:15 PDT
Comment on attachment 237462 [details] Proposed patch. r=me
WebKit Commit Bot
Comment 3 2014-09-03 07:15:21 PDT
Comment on attachment 237462 [details] Proposed patch. Clearing flags on attachment: 237462 Committed r173205: <http://trac.webkit.org/changeset/173205>
WebKit Commit Bot
Comment 4 2014-09-03 07:15:25 PDT
All reviewed patches have been landed. Closing bug.
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