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
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