[LLVMdev] [RFC] Extend LLVM IR to express "fast-math" at a per-instruction level

Krzysztof Parzyszek kparzysz at codeaurora.org
Fri Nov 2 14:10:07 PDT 2012

On 11/2/2012 3:07 PM, Dan Gohman wrote:
> Just so you know, what you're describing sounds like Undefined Behavior.
> I don't currently have a suggestion for what is best choice is, or of
> how important it is.

I believe that the "undefined behavior" approach is clearer, and easier 
to understand (for the users who will be providing such flags).


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