[LLVMbugs] [Bug 1284] NEW: Support bitwidth attribute in llvm-gcc

[bugzilla-daemon at cs.uiuc.edu]

http://llvm.org/bugs/show_bug.cgi?id=1284

           Summary: Support bitwidth attribute in llvm-gcc
           Product: tools
           Version: trunk
          Platform: All
        OS/Version: All
            Status: NEW
          Severity: enhancement
          Priority: P2
         Component: llvm-gcc
        AssignedTo: unassignedbugs at nondot.org
        ReportedBy: rspencer at x10sys.com


The llvm-gcc tool should support a bitwidth attribute that permits arbitrary
precision bit width integers to be used. This PR is to track the development of
that feature. 

As with other type attributes, this feature requests that:

__attribute__((bitwidth(N)))

be recognized by llvm-gcc so that things like:

typedef int __attribute__((bitwidth(23))

could be used to make a signed 23 bit integer.



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