Displaying 1 result from an estimated 1 matches for "5e177cfa".
2015 Nov 06
2
[RFC] A new intrinsic, `llvm.blackbox`, to explicitly prevent constprop, die, etc optimizations
On Tue, Nov 3, 2015 at 2:50 PM, Diego Novillo <dnovillo at google.com> wrote:
> I don't see how this is any different from volatile markers on
> loads/stores or memory barriers or several other optimizer blocking
> devices. They generally end up crippling the optimizers without much added
> benefit.
>
Volatile must touch memory (right?). Memory is slow.
> Would it