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    • Jose Fonseca's avatar
      scons: Disable SSE intrinsics on MinGW. · 5ba645f0
      Jose Fonseca authored
      -mstackrealign causes stack corruption on MinGW. And without it the ability
      to use SSE instrinsics goes down the drain. Even if we use
      __attribute__((force_align_arg_pointer)) for the functions we explicitly
      use SSE instrinsics, the SSE code automatically generated by gcc will
      cause assertion failures. What a nightmare.
      
      Thankfully LLVM gets this right, so all runtime generated SSE code just
      works. rtasm code doesn't assume 16byte alignment. Therefore the bulk of
      our performance sensitive code is not affected by this.
      
      Still, intrinsics can be convenient, and it would be nice
      to get this working again some day, sp will try to get a reduced test
      case.
      5ba645f0
  22. 24 Sep, 2009 1 commit