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[Lightning] Re: Proof of concept work on inline functions

From: Ludovic Courtès
Subject: [Lightning] Re: Proof of concept work on inline functions
Date: Sat, 11 Sep 2010 15:10:59 +0200
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/23.2 (gnu/linux)


Paolo Bonzini <address@hidden> writes:

> On Fri, Sep 10, 2010 at 19:05, Paulo César Pereira de Andrade
> <address@hidden> wrote:
>> 2010/9/10 Ludovic Courtès <address@hidden>:
>>> Hi,
>>  Hi,
>>> Paulo César Pereira de Andrade
>>> <address@hidden>
>>> writes:
>>>> static int
>>>> generate_foo(jit_state *lightning_state)
>>>> {
>>>>     jit_set_state(lightning_state);
>>>>     jit_stxi_p(bar, JIT_FP, JIT_RET);
>>>>     ...
>>>> }
>>> The pointer to the current state would still be global, so that wouldn’t
>>> be reentrant, which is unfortunate (e.g., it’d make it impossible to
>>> have several threads or co-routines JIT’ing at the same time.)
>>  I think this argument is good enough to change as soon as possible
>> to use the other approach suggested, that is to have a "hidden" extra
>> argument, so that one can have several jit generators in parallel and in
>> the same thread, if one per thread, could use a tls global.
> You could add the argument to the inline function, and then define a
> same-named macro like
> #define jit_addi_i(a,b,c) jit_add_i(_jit,a,b,c)



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