nvptx: use `simd_fmin` and `simd_fmax` for `minnum` and `maxnum`#1725

Amanieu merged 1 commit intorust-lang:masterrust-lang/stdarch:masterfrom

folkertdev:nvptx-simd-fmax-fminfolkertdev/stdarch:nvptx-simd-fmax-fminCopy head branch name to clipboard