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      1 //===---------------------------------------------------------------------===//
      2 // Testcases that crash the X86 backend because they aren't implemented
      3 //===---------------------------------------------------------------------===//
      4 
      5 These are cases we know the X86 backend doesn't handle.  Patches are welcome
      6 and appreciated, because no one has signed up to implemented these yet.
      7 Implementing these would allow elimination of the corresponding intrinsics,
      8 which would be great.
      9 
     10 1) vector shifts
     11 2) vector comparisons
     12 3) vector fp<->int conversions: PR2683, PR2684, PR2685, PR2686, PR2688
     13 4) bitcasts from vectors to scalars: PR2804
     14 5) llvm.atomic.cmp.swap.i128.p0i128: PR3462
     15