[LLVMdev] Prevent instruction elimination

[Xinfinity]

Hi Duncan,

The empty inline asm crossed my mind as well, but LLVM handles inline
assemblies as calls. This would lead to a dependence if it is inside of a
loop, right? And this means a considerable impact on the optimizers.
Is it possible to avoid it?

Thanks,
Alexandra


Duncan Sands wrote:
> 
> 
> LLVM certainly will remove volatile loads and stores to local variables
> (at least in simple situations).  I suggest using an empty asm statement.
> 
> Ciao,
> 
> Duncan.
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