What should and should not be marked has_side_effects?

Note [PrimOp can_fail and has_side_effects] in prelude/PrimOp.hs says > A primop "has_side_effects" if it has some *write* effect, visible > elsewhere > > - writing to the world (I/O) > - writing to a mutable data structure (writeIORef) > - throwing a synchronous Haskell exception >

Re: New commits

Simon Peyton Jones via ghc-devs writes: > Edward, Ben, others > I have just pushed a patch series > > 2209d5e6 Comments only > > 4eeb3273 Drop redundant import > > 2d3cb34a Define TcSimplify.simplifyTopImplic and use it > > af6ed4a6 Fix constraint simplification in rules >

Windows

Windows build is working againthank you! (To be fair, I'm still building stage2, so have not tried the testsuite yet, but I live in hope.) Simon ___ ghc-devs mailing list ghc-devs@haskell.org http://mail.haskell.org/cgi-bin/mailman/listinfo/ghc-devs

New commits

Edward, Ben, others I have just pushed a patch series 2209d5e6 Comments only 4eeb3273 Drop redundant import 2d3cb34a Define TcSimplify.simplifyTopImplic and use it af6ed4a6 Fix constraint simplification in rules 48d1866e Improve error messages for skolems 7e96526a Fix

Re: FW: GHC on Windows 10 15019+

Hi Simon, No it doesn't ring a bell to me, though I don't generally use the insider builds. I think 0xc142 is a compatibility error, but what is not clear to me is if he replaced realgcc which is a stub we make or just updated things in the mingw folder. So I can't really tell if the error is

FW: GHC on Windows 10 15019+

Phyx and friends: does this ring a bell? Do we have a ticket? -Original Message- From: Glasgow-haskell-users [mailto:glasgow-haskell-users-boun...@haskell.org] On Behalf Of J. Garrett Morris Sent: 09 March 2017 17:54 To: GHC users Subject: GHC on

RE: Windows build failing in a new way

Actually it asked me thus: Error: Needed msys2 tarballs are missing. You have a few options to get them, * run configure with the --enable-tarballs-autodownload option So I did as requested and ran configure with that flag. Success: checking for path to top of build tree... C:/code/HEAD