#15250: Add support for _mm512_shuffle_epi8 intrinsic -------------------------------------+------------------------------------- Reporter: newhoggy | Owner: (none) Type: bug | Status: new Priority: normal | Milestone: 8.8.1 Component: Compiler | Version: 8.4.3 Resolution: | Keywords: Operating System: Unknown/Multiple | Architecture: | Unknown/Multiple Type of failure: None/Unknown | Test Case: Blocked By: | Blocking: Related Tickets: | Differential Rev(s): Wiki Page: | -------------------------------------+------------------------------------- Comment (by carter): repeating my remark from phab: hrmmm, i suspect the AVX512 stuff may not be terrible performant / some / many intel CPUS in consumer / dev machine hands wont support them, have you tested using it via C FFI for your inner loops first? This is definitely an example of an instruction where the shuffle data can be at runtime, i'd suggest first making sure an inner loop / subroutine in C has satisfactory perf first. Whats the context driving this effort? -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/15250#comment:2 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler