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

[Jonathan Wakely via Phabricator via llvm-commits]

jwakely added a comment.

In D130718#3688875 <https://reviews.llvm.org/D130718#3688875>, @dim wrote:

> The problem that x86_64 builds fail by default on non-gcc compilers still stands.

It fails for GCC too. `cc -m32` does not set `-msse2` by default in vanilla GCC, see https://discourse.llvm.org/t/how-to-build-compiler-rt-for-new-x86-half-float-abi/63366/20?u=jwakely


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