Just to follow up on this:
I have some patches to the mangler for Linux/Alpha that we are currently
testing. I have pushed these to the gentoo-haskell darcs repository for the
Gentoo Haskell herd to try out. The patches (hopefully) fix the following
problems I have discovered with enabling
Duncan Coutts wrote:
On Fri, 2006-03-31 at 11:43 +0100, Simon Marlow wrote:
Duncan Coutts wrote:
What would you recommend is the bat way for us to verify that each bit
of the registerised build is working? If we turn everything on including
the mangler and it breaks where do we start
Duncan Coutts wrote:
What would you recommend is the bat way for us to verify that each bit
of the registerised build is working? If we turn everything on including
the mangler and it breaks where do we start debugging?
I usually do this in one big step.
Regarding debugging, I just wrote
On Fri, 2006-03-31 at 11:43 +0100, Simon Marlow wrote:
Duncan Coutts wrote:
What would you recommend is the bat way for us to verify that each bit
of the registerised build is working? If we turn everything on including
the mangler and it breaks where do we start debugging?
I usually
On Wed, 2006-03-29 at 03:37 +0100, Duncan Coutts wrote:
Well the full build finished and appears to work. We're going to try
again with what I think is a better fix than just picking another fixed
register. Instead of fixing a register we could let gcc pick any
suitable register by use a
On Thu, 2006-03-30 at 20:23 +0100, Duncan Coutts wrote:
Things are very slowly becoming clearer...
We compiled a little module with the stage1 compiler. So we get
registerised output assembly. It is using machine registers and making
tail calls. We've looked through the assembly but we can't
Duncan Coutts wrote:
Well the full build finished and appears to work. We're going to try
again with what I think is a better fix than just picking another fixed
register. Instead of fixing a register we could let gcc pick any
suitable register by use a local C variable. It'd be the same code
Duncan Coutts wrote:
/tmp/ghc9727.hc: In function `s1BE_ret':
/tmp/ghc9727.hc:1688: error: unable to find a register to spill in class
`R27_REG'
/tmp/ghc9727.hc:1688: error: this is the insn:
(insn 24 23 26 1 (parallel [
(set (reg/v:DI 14 $14 [ R1 ])
(div:DI (reg:DI
On Tue, 2006-03-28 at 14:52 +0100, Simon Marlow wrote:
I find the divmoddi_internal_er a bit suspicious. Things often go
wrong when gcc is using its builtin functions - you might try
-fno-builtin to gcc.
We tried that and it made no difference.
We did some more investigation and tried
On Tue, 2006-03-28 at 19:06 +0100, Duncan Coutts wrote:
On Tue, 2006-03-28 at 14:52 +0100, Simon Marlow wrote:
I find the divmoddi_internal_er a bit suspicious. Things often go
wrong when gcc is using its builtin functions - you might try
-fno-builtin to gcc.
We tried that and it
On Tue, 2006-03-28 at 19:06 +0100, Duncan Coutts wrote:
register void *_procedure __asm__($27);
#define JMP_(cont) \
do { _procedure = (void *)(cont); \
__DISCARD__(); \
goto *_procedure;
More on the porting theme,
We've had an unregisterised alpha port in gentoo for some time and two
of our alpha devs with an interest in ghc decided to try to get the
registerised build working.
They started by turning off the mangler and trying to get the register
bit working. This is ghc-6.4.1.
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