FrozenGene edited a comment on issue #4981: [Relay, Topi, TF Frontend] Isfinite operator URL: https://github.com/apache/incubator-tvm/pull/4981#issuecomment-602032129 > @FrozenGene I grepped through the Halide code base, isinf/isnan don't seem to be in Halide's IR, but they use `std::isnan` and `std::isfinite` during codegen. They also appear inside generated code for C source based backend (OpenCL etc.) https://github.com/halide/Halide/commit/697b4be49a28ac7ae24464e58cbce328e3953f23 this commit add `nan` / `inf` support in Halide.
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