Re: [GHC] #9430: implement more arithmetic operations natively in the LLVM backend

#9430: implement more arithmetic operations natively in the LLVM backend -------------------------------------+------------------------------------- Reporter: rwbarton | Owner: michalt Type: feature request | Status: new Priority: normal | Milestone: Component: Compiler (LLVM) | Version: 7.9 Resolution: | Keywords: Operating System: Unknown/Multiple | Architecture: | Unknown/Multiple Type of failure: Runtime | Test Case: performance bug | primops/should_run/T9430 Blocked By: | Blocking: Related Tickets: | Differential Revisions: -------------------------------------+------------------------------------- Comment (by Ben Gamari ): In [changeset:"92f5385d8b2be50848a2496199a481f299f4b53a/ghc" 92f5385/ghc]: {{{ #!CommitTicketReference repository="ghc" revision="92f5385d8b2be50848a2496199a481f299f4b53a" Support MO_U_QuotRem2 in LLVM backend This adds support for MO_U_QuotRem2 in LLVM backend. Similarly to MO_U_Mul2 we use the standard LLVM instructions (in this case 'udiv' and 'urem') but do the computation on double the word width (e.g., for 64-bit we will do them on 128 registers). Test Plan: validate Reviewers: rwbarton, austin, bgamari Reviewed By: bgamari Subscribers: thomie Differential Revision: https://phabricator.haskell.org/D1100 GHC Trac Issues: #9430 }}} -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/9430#comment:13 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler