but of course that brings us to that other bug for 64-bit Windows where 64-bit GHC 7.8.2 still doesn't work with LLVM (3.4/3.5) at least for mingw as per the distrubuted binary, although it does under 64-bit Linux. The above test program runs under LLVM for a 32-bit compile but crashes on run for 64-bit, both on Windows.
Or perhaps there is something wrong with my compile of 64-bit LLVM even
#8971: Native Code Generator for 7.8 is not as optimized as 7.6.3... --------------------------------------------+------------------------------ Reporter: GordonBGood | Owner: Type: bug | Status: new Priority: normal | Milestone: 7.10.1 Component: Compiler (NCG) | Version: 7.8.1-rc2 Resolution: | Keywords: Operating System: Unknown/Multiple | Architecture: Type of failure: Runtime performance bug | Unknown/Multiple Test Case: | Difficulty: Unknown Blocking: | Blocked By: | Related Tickets: --------------------------------------------+------------------------------ Comment (by awson): Replying to [comment:19 GordonBGood]: though I followed the exact same procedure as generating the 32-bit version from trunk. Don Stewart's entry that working LLVM should really be distributed with GHC is a very good one. This is #8974. My patch there makes your program work on 64-bit Windows (although I don't like it because it uses mangler). It is compatible with existing 64-bit LLVM-3.4, distributed by MSYS2 (mingw-w64) project. We could pack this LLVM distro along with 64-bit GHC binary and configure ghc to use it (then also #7143 would be solved, and I have the patch for this ready) - just like we go with gcc/binutils/perl in all windows distros. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/8971#comment:20 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler