#9246: GHC generates poor code for repeated uses of min/max --------------------------------------------+------------------------------ Reporter: arotenberg | Owner: Type: bug | Status: new Priority: normal | Milestone: Component: Compiler | Version: 7.8.2 Resolution: | Keywords: Operating System: Windows | Architecture: x86_64 Type of failure: Runtime performance bug | (amd64) Test Case: | Difficulty: Unknown Blocking: | Blocked By: | Related Tickets: #6135 --------------------------------------------+------------------------------ Changes (by carter): * type: feature request => bug * milestone: 7.10.1 => Comment: yes, lets do that. I'll switch this ticket to being the bug one and open a new one for the feature request element and we can back and forth about generating the core etc here. What were the ghc flags and optimization levels etc you were using to check the core? I'd like to make sure i can reproduce your findings before I try out my own hacking to help you out with near term work around over the next week (as my own work permits, though helping folks with perf engineering in haskell DOES overlap with my work a teeny bit) -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/9246#comment:5 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler