#13852: Can we have more SIMD primops, corresponding to the untapped AVX etc. instructions? -------------------------------------+------------------------------------- Reporter: | Owner: (none) leftaroundabout | Type: feature | Status: new request | Priority: normal | Milestone: Component: Compiler | Version: 8.0.1 (LLVM) | Keywords: | Operating System: Unknown/Multiple Architecture: x86_64 | Type of failure: None/Unknown (amd64) | Test Case: | Blocked By: Blocking: | Related Tickets: Differential Rev(s): | Wiki Page: -------------------------------------+------------------------------------- [http://hackage.haskell.org/package/ghc-prim-0.5.0.0/docs/GHC- Prim.html#g:28 GHC.Prim] contains a good couple of vectorised instructions, which can be [http://hackage.haskell.org/package/primitive- simd-0.1.0.0/docs/Data-Primitive-SIMD.html used by libraries] for generating nice fast e.g. sums of floating-point vectors. However, several instructions that modern processors could vectorise are missing there. In particular, I would like to be able to use the VPSLLVD...VPSRAVD shifting operations, and at some point perhaps VPMAXSQ...VPMINUQ maximum/minimum operations. It would be great if corresponding primops could be added. Else I would like to know – where is this stuff even defined? [http://hackage.haskell.org/package/ghc- prim-0.5.0.0/docs/src/GHC.Prim.html GHC.Prim] as such seems to be merely an automatically-generated dummy module, mostly for Haddock. (On the other hand, I find it also a bit strange that there are primops for [http://hackage.haskell.org/package/ghc-prim-0.5.0.0/docs/GHC- Prim.html#v:quotInt8X16-35- integer division], which is apparently [https://stackoverflow.com/questions/16822757/sse-integer-division not supported by SSE/AVX] at all!) -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/13852 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler