[LLVMbugs] [Bug 5195] New: Add 16-bit (half precision) APFloat support

[bugzilla-daemon at cs.uiuc.edu]

http://llvm.org/bugs/show_bug.cgi?id=5195

           Summary: Add 16-bit (half precision) APFloat support
           Product: new-bugs
           Version: trunk
          Platform: PC
        OS/Version: Linux
            Status: NEW
          Keywords: new-feature
          Severity: normal
          Priority: P2
         Component: new bugs
        AssignedTo: unassignedbugs at nondot.org
        ReportedBy: johnson.peter at gmail.com
                CC: llvmbugs at cs.uiuc.edu


Created an attachment (id=3659)
 --> (http://llvm.org/bugs/attachment.cgi?id=3659)
Patch to add basic support.

APFloat does not currently have support for IEEE 754-2008 "half precision", aka
binary16 (see wikipedia for details).  This is relatively trivial to add basic
support for (e.g. semantics and conversions to/from APInt); see attached patch.


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