https://issues.dlang.org/show_bug.cgi?id=19627

          Issue ID: 19627
           Summary: [CTFE][SIMD] Error: cannot cast `int` to `int[4]`
           Product: D
           Version: D2
          Hardware: All
                OS: All
            Status: NEW
          Severity: major
          Priority: P1
         Component: dmd
          Assignee: nobody@puremagic.com
          Reporter: ibuclaw@gdcproject.org

enum int[4] E7 = cast(int[4])int4(0);

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