#13464: Pattern match checker runs even when not needed -------------------------------------+------------------------------------- Reporter: jstolarek | Owner: (none) Type: bug | Status: new Priority: normal | Milestone: Component: Compiler | Version: 8.0.1 Keywords: | Operating System: Unknown/Multiple Architecture: | Type of failure: None/Unknown Unknown/Multiple | Test Case: | Blocked By: Blocking: | Related Tickets: Differential Rev(s): | Wiki Page: -------------------------------------+------------------------------------- I have code that triggers pattern match checker warning: {{{ Pattern match checker exceeded (2000000) iterations in a case alternative. (Use -fmax-pmcheck-iterations=n to set the maximun number of iterations to n) }}} I would like to silence that warning. Alas, `-Wno-incomplete-patterns` does nothing - the warning still appears. I would expect that if I do not want to check for incomplete patterns then pattern match checker is not run at all and thus does not exceed maximum number of iterations! I can only use `-w` to silence all the warnings but this is an overkill - definitely not what I want. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/13464 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler