[LLVMbugs] [Bug 3834] New: x86 long double APInt <-> APFloat conversion wrong

[bugzilla-daemon at cs.uiuc.edu]

http://llvm.org/bugs/show_bug.cgi?id=3834

           Summary: x86 long double APInt <-> APFloat conversion wrong
           Product: new-bugs
           Version: unspecified
          Platform: Other
        OS/Version: Linux
            Status: NEW
          Severity: normal
          Priority: P2
         Component: new bugs
        AssignedTo: unassignedbugs at nondot.org
        ReportedBy: baldrick at free.fr
                CC: llvmbugs at cs.uiuc.edu


Created an attachment (id=2727)
 --> (http://llvm.org/bugs/attachment.cgi?id=2727)
testcase .ll

On x86-linux, as the following testcase shows, converting
an x86 long double to an i80 or vice-versa gives the wrong
result.  The bits seem to be displaced from their correct
positions, perhaps an endianness problem?


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