[llvm] r174340 - Added LLVM Asm/Bitcode Reader/Writer support for new IR keyword externally_initialized.

[Duncan Sands]

Hi Michael,

On 05/02/13 19:44, Michael Gottesman wrote:
> Yes. See r174270. I was trying to be incremental (perhaps too incremental = p).

thanks, I found it now.  I hate to say this but it seems like a rather dubious
concept to me.  Presumably what you want is an "internal" variable, so all kinds
of optimizations can happen, but you don't want too many optimizations to
happen because in fact external places can and do touch it.  Your approach
sounds a lot like lying to the optimizers to me, which is usually a bad idea
(often tempting though!).  What is the situation that provoked all this?

Ciao, Duncan.

>
> Michael
>
> On Feb 5, 2013, at 6:43 AM, Duncan Sands <baldrick at free.fr> wrote:
>
>> Hi Michael,
>>
>>> Added LLVM Asm/Bitcode Reader/Writer support for new IR keyword externally_initialized.
>>
>> did you also document it somewhere?
>>
>> Ciao, Duncan.
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