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On Wed, Oct 29, 2008 at 07:37:08PM +0000, Andrew Haley wrote:No, because real-world users might depend on the documented behaviour.
Or maybe not. I've tried codesearch.google.com on both __sync_fetch_and_nand and __sync_nand_and_fetch and it didn't reveal anything outside of GCC (and LLVM) sources. I know that doesn't imply no such users exist at all, but just that there probably aren't many at least in the opensource world.
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