Hi Ian,

On Apr 9, 2007, at 12:21 PM, Ian Lynagh wrote:

With this patch, we are pretty close.  However, there still seems to be
something wrong with the splitter.  I can make a working registerized
compiler if I set splitObjs=NO in build.mk, but it seems as if  
whatever is
wrong with ghc-split shouldn't be too hard to fix.

I've glanced at ghc-split.lprl, but on what files is it invoked? Can
I run it from the command line on a file and see check what comes out?

If you compile a module with

    ghc -v -keep-tmp-files

then you should see the commandline it is using, and it should leave the
files for you to examine, and rerun the commands on, afterwards.


I did this and immediately discovered that the problem is not with ghc-split
but with ghc-asm.  ".globl" directives are being deleted when they shouldn't be.

This is somewhat reminiscent of bug #1167, except that it seems to happen
far more frequently on amd64.  Perhaps someone has an idea of the top
of their head for this one.  I wouldn't be surprised if the fix for this also
took care of the bug on the less loved linux-ppc platform.

Best Wishes.
Greg