[PATCH] D130718: [compiler-rt] [builtins] Detect _Float16 support at compile time

[Dimitry Andric via Phabricator via llvm-commits]

dim added a comment.

In D130718#3685679 <https://reviews.llvm.org/D130718#3685679>, @tstellar wrote:

> Is this something we need in the release branch?

Yes please, provided that it's acceptable to everybody of course. I ran into this while building release/15.x after I had updated my host compiler to a very recent main snapshot (`llvmorg-15-init-17485-ga3e38b4a206b`).  E.g. building release/15.x or recent main with clang 14.0.5 will work just fine, because it didn't yet support _Float16. But after rG655ba9c8a1d22075443711cc749f0b032e07adee <https://reviews.llvm.org/rG655ba9c8a1d22075443711cc749f0b032e07adee> landed, of course it did start supporting _Float16.


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https://reviews.llvm.org/D130718