On Thu, 31 Oct 2024, LIU Hao wrote:
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Overall, I'm not familiar enough with nontrivial aspects of x86 assembly to comment reasonably on it - so I guess it's mostly "probably ok, if you say so".
However this bit caught my eye:
First, these intrins read from and write to thread-local memory, so the asm statement shall be `volatile`.
Can you elaborate about the reasoning here? Isn't volatile primarily needed if the assembly has some side effect that otherwise can't be modelled - e.g. if the outputs of the inline assembly isn't needed, we still can't skip the whole assembly.
I don't quite see why that's specifically needed for thread local memory - but I have nothing against adding volatile here either. I'm just curious about the reasoning.
// Martin _______________________________________________ Mingw-w64-public mailing list Mingw-w64-public@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/mingw-w64-public
