[LLVMbugs] [Bug 8740] New: dse can be too eager

bugzilla-daemon at llvm.org bugzilla-daemon at llvm.org
Sun Dec 5 20:36:05 PST 2010


           Summary: dse can be too eager
           Product: libraries
           Version: trunk
          Platform: PC
        OS/Version: Linux
            Status: NEW
          Severity: normal
          Priority: P
         Component: Scalar Optimizations
        AssignedTo: unassignedbugs at nondot.org
        ReportedBy: tom.prince at ualberta.net
                CC: llvmbugs at cs.uiuc.edu

Created an attachment (id=5873)
 --> (http://llvm.org/bugs/attachment.cgi?id=5873)
llvm IR that breaks dse.

Running the attached llvm ir with lli gives
with opt -basicaa -dse | lli gives

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