Details
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Enhancement
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Resolution: Fixed
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P3
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9, 10
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b21
Description
Currently subword types cannot use entire vector width using SLP.
This work helps analyse subword in the loop to set maximum vector size to take advantage of full vector width for subword types.
In this we analyze if narrowing is likely to happen and if it is we set vector size more aggressively.
We check for possibility of narrowing by looking through chain operations using subword types.
This work helps analyse subword in the loop to set maximum vector size to take advantage of full vector width for subword types.
In this we analyze if narrowing is likely to happen and if it is we set vector size more aggressively.
We check for possibility of narrowing by looking through chain operations using subword types.
Attachments
Issue Links
- relates to
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JDK-8185013 Disable subword vector analysis optimization until 8184995 is fixed
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- Resolved
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JDK-8194740 UseSubwordForMaxVector causes performance regression
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- Resolved
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- Closed
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