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cmd/compile: improve implementation of OFORUNTIL inductive fact detection #40502

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randall77 opened this issue Jul 30, 2020 · 2 comments
Open

cmd/compile: improve implementation of OFORUNTIL inductive fact detection #40502

randall77 opened this issue Jul 30, 2020 · 2 comments
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NeedsInvestigation Performance
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Go1.16

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@randall77
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@randall77 randall77 commented Jul 30, 2020

This issue is for followon improvements to #40367. We had to disable some optimizations for that issue, which we should reenable/improve for 1.16.
@choleraehyq @zdjones @dr2chase @cherrymui
@randall77 randall77 added this to the Go1.16 milestone Jul 30, 2020
@choleraehyq
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@choleraehyq choleraehyq commented Jul 31, 2020

I’ll do the isSameOrPlainSuccessor optimization and reenable these two test cases later.
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@gopherbot gopherbot commented Jul 31, 2020

Change https://golang.org/cl/246157 mentions this issue: cmd/compile: check indirect connection between if block and phi block in addLocalInductiveFacts
@randall77 randall77 mentioned this issue Aug 2, 2020
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