[libc-commits] [PATCH] D152923: [libc] Add support for FMA in the GPU utilities

[Matt Arsenault via Phabricator via libc-commits]

arsenm added a comment.

In D152923#4421576 <https://reviews.llvm.org/D152923#4421576>, @jhuber6 wrote:

> May be misusing terminology here, they are definitely compliant with IEEE, but maybe not with `libc`'s desire for all math to be correct under every rounding mode. I don't have a complete understanding of the requirements or desires here from the `libc` team.

There's a parallel set of FP intrinsics for strictfp functions if you're using fenv access. If you're not using strictfp/experimental.constrained intrinsics, you don't get control over the rounding mode and everything assumes round even. Really we'd want to have a separate regular and fenv access build.


Repository:
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https://reviews.llvm.org/D152923