Hi Janek, yea :) I think it went by unnoticed. Patch is already in Phab,
https://phabricator.haskell.org/D208 Not sure how to speed up the review process, though ;-) Cheers, Moritz On Sep 15, 2014, at 11:13 AM, Jan Stolarek <[email protected]> wrote: > I think it is best to fill in a bug report and attach a patch - I'm afraid > this mail may have gone > unnoticed :-) > > Janek > > Dnia piątek, 12 września 2014, Moritz Angermann napisał: >> Hi, >> >> when trying to compile a ghc HEAD on LLVM ARM, I end up getting an >> exception: >> >> ghc-stage1: panic! (the 'impossible' happened) >> (GHC version 7.9.20140911 for arm-apple-ios): >> globalRegMaybe >> >> After some digging I found that a new call to globalRegMaybe was introduced >> here: >> http://git.haskell.org/ghc.git/blob/HEAD:/compiler/cmm/CmmSink.hs#l231 on >> 2014-04-29 in commit: >> http://git.haskell.org/ghc.git/commitdiff/83a003fcaec93dbfd5b46837f2bf33534 >> 12b9877 >> >> In a similar timeframe (since 2014-05-02) /include/CodeGen.Platform.hs was >> changed: >> http://git.haskell.org/ghc.git/blobdiff/b0534f78a73f972e279eed4447a5687bd6a >> 8308e..HEAD:/includes/CodeGen.Platform.hs >> >> introducing a set of new ifdef/elif/endif pairs. Especially for >> MACHREGS_NO_REGS, namely: >> >> -#endif >> globalRegMaybe _ = Nothing >> +#elif MACHREGS_NO_REGS >> +globalRegMaybe _ = Nothing >> +#else >> +globalRegMaybe = panic "globalRegMaybe not defined for this platform" >> +#endif >> >> ARM.hs >> (http://git.haskell.org/ghc.git/blob/23892440032fcab8a6a753916d506857674169 >> ec:/compiler/codeGen/CodeGen/Platform/ARM.hs) however, has: >> >> #define MACHREGS_NO_REGS 0 >> #define MACHREGS_arm 1 >> >> where MACHREGS_arm 1 has no effect on the subsequently imported >> CodeGen.Platform.hs. >> >> Therefore I propose that a change to ARM.hs is made to set >> MACHREGS_NO_REGS to 1. >> >> Cheers, >> Moritz >> _______________________________________________ >> ghc-devs mailing list >> [email protected] >> http://www.haskell.org/mailman/listinfo/ghc-devs > > _______________________________________________ ghc-devs mailing list [email protected] http://www.haskell.org/mailman/listinfo/ghc-devs
