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v3.19.8

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Jay D Dee
2022-05-27 18:12:30 -04:00
parent db76d3865f
commit 26b8927632
20 changed files with 1600 additions and 256 deletions
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5
simd-utils/simd-512.h
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@@ -15,13 +15,14 @@
// AVX512 intrinsics have a few changes from previous conventions.
//
// cmp instruction now returns a bitmask isnstead of a vector mask.
// cmp instruction now returns a bitmask instead of a vector mask.
// This eliminates the need for the blendv instruction.
//
// The new rotate instructions require the count to be an 8 bit
// immediate value only. Compilation fails if a variable is used.
// The documentation is the same as for shift and it works with
// variables.
// variables. The inconsistency is likely due to compiler optimizations
// that can eliminate the variable in some instances.
//
// _mm512_permutex_epi64 only shuffles within 256 bit lanes. Permute
// usually shuffles accross all lanes.