RFR(m): 8220351: Cross-modifying code

[Robbin Ehn]

On 3/19/19 6:08 PM, Andrew Haley wrote:
> On 3/19/19 4:52 PM, Doerr, Martin wrote:
>> Not sure if the inline assembler code on x86 necessarily needs a "clobber memory" effect.
>> I don't know what a C++ compiler is allowed to do if it doesn't know that the code has some kind of memory effect.
> 
> Leave the memory clobber. No memory clobber means that you are telling the
> compiler that this operation has no memory effect, which means that the
> compiler can move the asm *before* you wrote out the changes to memory.
> 

Thanks!

/Robbin