[clang] [X86][Headers] Specify result of NaN comparisons (PR #85862)

[Paul T Robinson via cfe-commits]

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@@ -710,6 +728,7 @@ _mm_cmpge_ps(__m128 __a, __m128 __b)
 ///
 ///    The comparison yields 0x0 for false, 0xFFFFFFFF for true, in the
 ///    low-order bits of a vector of [4 x float].
+///    If either value in a comparison is NaN, returns false.
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pogo59 wrote:

Yes, thank you!

https://github.com/llvm/llvm-project/pull/85862