[LLVMbugs] [Bug 1245] llvm-as mis-reads some negative integers

[bugzilla-daemon at cs.uiuc.edu]

http://llvm.org/bugs/show_bug.cgi?id=1245

rspencer at x10sys.com changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|ASSIGNED                    |RESOLVED
         Resolution|                            |FIXED
            Summary|Invalid bytecode assembled  |llvm-as mis-reads some
                   |                            |negative integers



------- Additional Comments From rspencer at x10sys.com  2007-03-09 13:30 -------
This problem only affected negative integers whose "next to last" significant
bit was set. In such cases the number of bits computed as needed by the value
was off-by-one as it did not account for the sign bit. Consequently, the number
was parsed correctly by the "fromString" constructor but truncated to the wrong
length which changed the value.

This simple patch fixes it:
http://lists.cs.uiuc.edu/pipermail/llvm-commits/Week-of-Mon-20070305/045759.html



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