MO_WriteBarrier and PowerPC (NCG)

[Karel Gardas]

On 01/18/12 11:13 PM, Gabor Greif wrote:
> b) Sub-architecture (ArchPPC e500)
> elegant, but more work

For ARM we're using something similar (see Platform.hs) as its elegant 
and whole GHC code would like to get rid of platform specific #ifdefs 
and move platform specific decision into Haskell. Currently it's of 
nearly no use except that it passes correct vector coprocessor 
command-line to the LLVM.
Also nice thing is that it's written into GHC settings file and even 
this settings file is generated from configure so you may do some 
configure/shell hackery to support e500, save it to the file and GHC 
will generate e500 code then -- but as you wrote: elegant, but more 
work, but IMHO just a little bit which is well overweighted by having 
more elegant code...

Anyway, don't take this as any recommendation, I'm not at this position 
to recommend anything w.r.t. GHC.

Karel