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Patmat phase 60 times slower with 2.13.6, 2.13.7 #12499
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attn @dwijnand |
dwijnand
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Regression: patmat phase 60 times slower with 2.13.6, 2.13.7
Patmat phase 60 times slower with 2.13.6, 2.13.7
Nov 24, 2021
Same here. With Scala 2.13.8 it takes 30 seconds (more than 1/3 of total time) in my case and with Scala 2.13.5 drops significantly. |
Some partial work at scala/scala#10168 could be picked up by another contributor. A lot of the lifting needed here was simply to identify the root cause — see PR for details. |
This was referenced Jan 4, 2023
See also point 2 in my comment posted on January 14, 2023 in |
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The piece of code below compiles in a few seconds with 2.13.5, it takes roughly 15 minutes with 2.13.6 and 2.13.7.
Requires
scalacOptions ++= Seq("-Ypatmat-exhaust-depth", "off")
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