#11781: Improve common sub-expression -------------------------------------+------------------------------------- Reporter: simonpj | Owner: Type: bug | Status: new Priority: normal | Milestone: Component: Compiler | Version: 7.10.3 Resolution: | Keywords: Operating System: Unknown/Multiple | Architecture: | Unknown/Multiple Type of failure: None/Unknown | Test Case: Blocked By: | Blocking: Related Tickets: | Differential Rev(s): Phab:D2074 Wiki Page: | -------------------------------------+------------------------------------- Comment (by simonpj): New performance results are in from [https://perf.haskell.org/ghc/#revision/e05b00ef8e05e58e93e0559e4499a830bc51b... GHC speed] {{{ nofib/time/cryptarithm1 0.421 - 4.04% 0.404 seconds tests/alloc/T9020 723162856 + 17.86% 852298336 bytes tests/alloc/T9872b 4754051528 - 3.24% 4600233488 bytes tests/alloc/T9872c 4452756568 - 3.28% 4306667256 bytes Interestingly, `T9020` (long sequence of `return()` commands) was improved by your previous commit. }}} -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/11781#comment:1 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler