[llvm-bugs] [Bug 45339] New: Support for bitfields in OpenCL

[via llvm-bugs]

https://bugs.llvm.org/show_bug.cgi?id=45339

            Bug ID: 45339
           Summary: Support for bitfields in OpenCL
           Product: clang
           Version: trunk
          Hardware: PC
                OS: Linux
            Status: NEW
          Severity: enhancement
          Priority: P
         Component: OpenCL
          Assignee: unassignedclangbugs at nondot.org
          Reporter: drohr at jwdt.org
                CC: anastasia.stulova at arm.com, llvm-bugs at lists.llvm.org

Created attachment 23283
  --> https://bugs.llvm.org/attachment.cgi?id=23283&action=edit
testcase

Is there any reasons bitfields are not supported in OpenCL?
The attached code gives me the following error message compiled with clang 10
via
clang++ -o test -cl-std=clc++ -c test.cl

test.cl:12:21: error: bit-fields are not supported in OpenCL
      unsigned long version : 8;        /// bit  0 to  7: header version
                    ^
test.cl:13:21: error: bit-fields are not supported in OpenCL
      unsigned long headerSize : 8;     /// bit  8 to 15: header size
                    ^
test.cl:14:21: error: bit-fields are not supported in OpenCL
      unsigned long blockLength : 16;   /// bit 16 to 31: block length
                    ^
test.cl:15:21: error: bit-fields are not supported in OpenCL
      unsigned long feeId : 16;         /// bit 32 to 47: FEE identifier
                    ^
test.cl:16:21: error: bit-fields are not supported in OpenCL
      unsigned long priority : 8;       /// bit 48 to 55: priority bit
                    ^
test.cl:17:21: error: bit-fields are not supported in OpenCL
      unsigned long zero0 : 8;          /// bit 56 to 63: zeroed
                    ^
test.cl:23:18: error: expected ';' at end of declaration list
      unsigned in offsetToNext : 16;  /// bit 64 to 79:  offset to next packet
in memory
[...]

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