[LLVMdev] ARM support status (GHC/ARM new calling convention)

[Karel Gardas]

John,

I've moved with patches to HEAD and unfortunately the comments about 
disabling tailcalls do not go away with this update. Please see 
ARMTargetLowering::LowerCall in lib/Target/ARM/ARMISelLowering.cpp line 
1208 and later. It looks like man can use -arm-tail-calls, but one never 
knows how good it is since the comment tells it clearly:

// Temporarily disable tail calls so things don't break.

so I would like to ask what's the status of tailcalls in LLVM on ARM 
platform?

Thanks a lot!
Karel

On 06/16/11 11:00 PM, John McCall wrote:
>> Also in the llvm::ARMTargetLowering::LowerCall I see a comment
>> about disabling tailcalls just to not break things.
>
> I believe this has been changed on ToT, so since Haskell is
> presumably completely dependent on tail calls working, you'll need to
> work there.