_mm_max_round_ss
Classification
AVX-512, Special Math Functions, CPUID Test: AVX512F
Header File
immintrin.h
Instruction
VMAXSS xmm, xmm, xmm {sae}
Synopsis
 _mm_max_round_ss(__m128 a, __m128 b, int sae);
Description
Compare the lower single-precision (32-bit) floating-point elements in "a" and "b", store the maximum value in the lower element of "dst", and copy the upper 3 packed elements from "a" to the upper elements of "dst". [sae_note][max_float_note]
Operation
dst[31:0] := MAX(a[31:0], b[31:0])
dst[127:32] := a[127:32]
dst[MAX:128] := 0