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i5-8259U clang

simd >g++ -O3 -o tst main.cpp -march=native simd >./tst 5 Reporting minimum time for 5 tests i16_f32: min/mean 377 545 ms i16_f32sse: min/mean 383 442 ms sqrt: min/mean 1366 1744 ms sqrtSSE: min/mean 1603 1819 ms sqrtAVX: min/mean 1727 1818 ms sqrt64: min/mean 5075 5854 ms sqrt64SSE: min/mean 4765 5227 ms sqrt64AVX: min/mean 4618 5786 ms fma: min/mean 1761 2038 ms fmaSSE: min/mean 1687 1906 ms fmaAVX: min/mean 1616 1813 ms fma (memory alignment not forced): min/mean 2675 3246 ms

i5-8259U gcc

simd >g++-9 -O3 -o tst main.cpp -march=native simd >./tst 5 Reporting minimum time for 5 tests i16_f32: min/mean 382 390 ms i16_f32sse: min/mean 379 382 ms sqrt: min/mean 1990 2280 ms sqrtSSE: min/mean 1617 1719 ms sqrtAVX: min/mean 1554 1650 ms sqrt64: min/mean 4885 5573 ms sqrt64SSE: min/mean 4584 5670 ms sqrt64AVX: min/mean 4709 5004 ms fma: min/mean 671 1437 ms fmaSSE: min/mean 1411 1769 ms fmaAVX: min/mean 1399 1726 ms fma (memory alignment not forced): min/mean 3224 3628 ms

3900X clang

simd>clang++ -O3 -o tst main.cpp -march=native simd>./tst 5 Reporting minimum time for 5 tests i16_f32: min/mean 234 234 ms i16_f32sse: min/mean 223 227 ms sqrt: min/mean 1008 1008 ms sqrtSSE: min/mean 265 265 ms sqrtAVX: min/mean 186 186 ms sqrt64: min/mean 1515 1570 ms sqrt64SSE: min/mean 762 763 ms sqrt64AVX: min/mean 341 341 ms fma: min/mean 179 179 ms fmaSSE: min/mean 202 202 ms fmaAVX: min/mean 184 184 ms fma (memory alignment not forced): min/mean 178 178 ms

3900X gcc

g++ -O3 -o tst main.cpp -march=native make: warning: Clock skew detected. Your build may be incomplete. simd>./tst 5 Reporting minimum time for 5 tests i16_f32: min/mean 226 226 ms i16_f32sse: min/mean 227 227 ms sqrt: min/mean 964 964 ms sqrtSSE: min/mean 255 255 ms sqrtAVX: min/mean 180 180 ms sqrt64: min/mean 1491 1491 ms sqrt64SSE: min/mean 762 762 ms sqrt64AVX: min/mean 344 344 ms fma: min/mean 184 184 ms fmaSSE: min/mean 206 206 ms fmaAVX: min/mean 185 185 ms fma (memory alignment not forced): min/mean 184 185 ms

M1 clang

make ARCH=arm g++ -O3 -o tst main.cpp -march=armv8-a+fp+simd+crypto+crc simd > ./tst 5
Reporting minimum time for 5 tests i16_f32: min/mean 79 91 ms i16_f32sse: min/mean 79 82 ms sqrt: min/mean 448 488 ms sqrtSSE: min/mean 437 478 ms sqrt64: min/mean 1499 1555 ms fma: min/mean 441 471 ms fmaSSE: min/mean 478 509 ms fma (memory alignment not forced): min/mean 669 709 ms