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6f00bb7d
2012 Nov 02
0
[LLVMdev] [RFC] Extend LLVM IR to express "fast-math" at a per-instruction level
...ou'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.
Dan
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2012 Nov 02
3
[LLVMdev] [RFC] Extend LLVM IR to express "fast-math" at a per-instruction level
On 11/2/2012 11:53 AM, Michael Ilseman wrote:
>
>
> I think Dan was making two points with his example. Dan, correct me if I misrepresent your example, but image a situation where a target has two instructions to choose between in order to perform the operation. The first is IEEE compliant, but the second isn't compliant in how it operates over NaNs (quiet or otherwise). For whatever