On 10/12, Jason Ekstrand wrote:
They return a boolean so this is the right type. Unfortunately, get_nir_dest has the annoying behavior of giving us a float type by default. This is mostly to work around the fact that gen7 has 64-bit float but no Q types.
I'd really like to see a clearer explanation about what this fixes. Something like "These intrinsics will be used to implement X, Y, Z from $extension, which support additional types (including 64-bit types). For 64-bit types get_nir_dest() returns ..., so we need to force the type to D since it always returns a bool."
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