[LLVMbugs] [Bug 5448] New: MemoryBuffer copies input file for page sized files

[bugzilla-daemon at cs.uiuc.edu]

http://llvm.org/bugs/show_bug.cgi?id=5448

           Summary: MemoryBuffer copies input file for page sized files
           Product: libraries
           Version: trunk
          Platform: PC
        OS/Version: All
            Status: NEW
          Severity: normal
          Priority: P2
         Component: Core LLVM classes
        AssignedTo: unassignedbugs at nondot.org
        ReportedBy: daniel at zuster.org
                CC: llvmbugs at cs.uiuc.edu


This is bad, such files aren't *that* unlikely, and mmap is a big performance
win. I think in most situations we can just mmap an extra page, but need to
verify/test.


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