Peter Lawrence via llvm-dev
2017-Jun-16 18:49 UTC
[llvm-dev] a tagged architecture, the elephant in the undef / poison room
Krzysztof,
IEEE-754 defines certain float bit-patterns to be Nan,
But there is no bit pattern for an int that can encode a Nan.
Peter
> On Jun 16, 2017, at 11:02 AM, via llvm-dev <llvm-dev at
lists.llvm.org> wrote:
>
>
> Why do you insist on treating it as an attribute? It's more like NaN
for
> floating point: "not a value".
>
> -Krzysztof
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