[LLVMbugs] [Bug 2312] New: GVN is buggy

bugzilla-daemon at cs.uiuc.edu bugzilla-daemon at cs.uiuc.edu
Sun May 11 07:53:39 PDT 2008


           Summary: GVN is buggy
           Product: libraries
           Version: trunk
          Platform: PC
        OS/Version: Linux
            Status: NEW
          Severity: normal
          Priority: P2
         Component: Scalar Optimizations
        AssignedTo: unassignedbugs at nondot.org
        ReportedBy: asl at math.spbu.ru
                CC: resistor at mac.com, llvmbugs at cs.uiuc.edu

Created an attachment (id=1634)
 --> (http://llvm.org/bugs/attachment.cgi?id=1634)
Bytecode in question

Consider attached testcase.

Running opt -gvn results to bytecode, which produces different (and invalid!)

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