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 > ghc-devs@haskell.org > http://www.haskell.org/mailman/listinfo/ghc-devs _______________________________________________ ghc-devs mailing list ghc-devs@haskell.org http://www.haskell.org/mailman/listinfo/ghc-devs