#9416: newArray# incorrectly inlines big arrays (overflow1.hs SIGSEGVS on ./validate --slow) -------------------------------------+------------------------------------- Reporter: slyfox | Owner: tibbe Type: bug | Status: new Priority: normal | Milestone: Component: Compiler | Version: 7.8.3 Resolution: | Keywords: Operating System: | Architecture: Unknown/Multiple Unknown/Multiple | Difficulty: Easy (less than 1 Type of failure: | hour) None/Unknown | Blocked By: Test Case: | Related Tickets: Blocking: | Differential Revisions: | -------------------------------------+------------------------------------- Comment (by tibbe): The core confirms my suspicions: {{{ case GHC.Prim.newByteArray# @ GHC.Prim.RealWorld (-40) s1_a1Cc }}} The only workaround I can think of is quite unpleasant. We need to cast the `Integer` in the `CmmInt` to a `Word`(and then perhaps back to an `Integer`) to get rid of the 2-complement interpretation of the value. The real fix is to change `newByteArray#` to take the size as a `Word#`. I don't see how the overflow1 test ever passed. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/9416#comment:4 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler