Re: [GHC] #15864: Fix Int8#, Int16#, Word8#, Word16# tests under LLVM code generator

#15864: Fix Int8#, Int16#, Word8#, Word16# tests under LLVM code generator -------------------------------------+------------------------------------- Reporter: bgamari | Owner: (none) Type: bug | Status: new Priority: normal | Milestone: 8.8.1 Component: Compiler (LLVM) | Version: 8.6.1 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 Ben Gamari ): In [changeset:"f424515fd8cbc2b7380cdf8427f972d062940bd5/ghc" f424515f/ghc]: {{{ #!CommitTicketReference repository="ghc" revision="f424515fd8cbc2b7380cdf8427f972d062940bd5" [LlvmCodeGen] Fixes for Int8#/Word8# This fixes two isssues: - Using bitcast for MO_XX_Conv Arguments to a bitcast must be of the same size. We should be using `trunc` and `zext` instead. - Using unsupported MO_*_QuotRem for LLVM The two primops `MO_*_QuotRem` are not supported by the LLVM backend, so we shouldn't use them for `Int8#`/`Word8#` (just as we do not use them for `Int#`/`Word#`). Signed-off-by: Michal Terepeta Test Plan: manually run tests with WAY=llvm Reviewers: bgamari, simonmar Reviewed By: bgamari Subscribers: rwbarton, carter GHC Trac Issues: #15864 Differential Revision: https://phabricator.haskell.org/D5304 }}} -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/15864#comment:2 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler