[clang] [llvm] [ARM] Introduce intrinsics for MVE minnm/maxnm under strict-fp. (PR #169795)

[Simon Tatham via cfe-commits]

statham-arm wrote:

The commit message looks as if it might have been copy-pasted from another commit?

>this adds an @arm.mve.fma intrinsic for strict-fp

No, it doesn't! This patch seems entirely about minnum and maxnum operations, not fma.

What is the behaviour change to minnum/maxnum under strict fp anyway? They don't round, overflow, or underflow. Is it just whether they throw an exception if given a signalling NaN as input?

https://github.com/llvm/llvm-project/pull/169795