#9630: compile-time performance regression (probably due to Generics)
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Reporter: hvr | Owner: (none)
Type: bug | Status: new
Priority: high | Milestone: 8.4.1
Component: Compiler | Version: 7.9
Resolution: | Keywords: deriving-
| perf, Generics
Operating System: Unknown/Multiple | Architecture:
Type of failure: Compile-time | Unknown/Multiple
performance bug | Test Case:
Blocked By: | Blocking:
Related Tickets: #9583, #10293, | Differential Rev(s):
#13059, #10818 |
Wiki Page: |
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Changes (by dfeuer):
* cc: dfeuer (added)
* related: #9583, #10293, #13059 => #9583, #10293, #13059, #10818
Comment:
It appears that much or all of the regression in the original example
occurred in b9e49d3e9580e13d89efd1f779cb76f610e0d6e0. Before, I get
{{{
dfeuer@squirrel:~/src/cabal> ~/src/ghc-iproute-before/inplace/bin/ghc-
stage2 -Rghc-timing -O -c Cabal/Language/Haskell/Extension.hs
<