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On Tue, Dec 17, 2013 at 01:05:10PM -0800, David Majnemer wrote: > This intrinsic seems very ill-defined, apparently it can be freely > reordered and does _not_ act like a compiler barrier. [1] > Other than source compatibility, why would one want this intrinsic? What > semantics is it supposed to give? Even more, why can't it just be defined as inline function in some header?

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This intrinsic seems very ill-defined, apparently it can be freely reordered and does _not_ act like a compiler barrier. [1] Other than source compatibility, why would one want this intrinsic? What semantics is it supposed to give? [1] < http://connect.microsoft.com/VisualStudio/feedback/details/691456/-readeflags-intrinsic-can-be-reordered-by-the-compiler > On Tue, Dec 17, 2013 at 11:00