#15426: `elemIndex` and `findIndex` still can't fuse -------------------------------------+------------------------------------- Reporter: kabuhr | Owner: kabuhr Type: bug | Status: patch Priority: normal | Milestone: 8.8.1 Component: libraries/base | Version: 8.4.3 Resolution: | Keywords: Operating System: Unknown/Multiple | Architecture: | Unknown/Multiple Type of failure: None/Unknown | Test Case: | testsuite/tests/perf/should_run/T15426.hs Blocked By: | Blocking: Related Tickets: | Differential Rev(s): Wiki Page: | https://phabricator.haskell.org/D5063 -------------------------------------+------------------------------------- Changes (by kabuhr): * status: new => patch Comment: Yes, that summary is correct. In the current Phab:D5063 that's pending review, I have added a performance regression test `T15426.hs`, and I have annotated the change in `OldList.hs` with: {{{ #!haskell -- (Note that making this INLINABLE instead of INLINE allows -- 'findIndex' to fuse, fixing #15426.) }}} assuming that's sufficient. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/15426#comment:10 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler