[LLVMbugs] [Bug 1818] New: memdep should eliminate successive identical pure calls

[bugzilla-daemon at cs.uiuc.edu]

http://llvm.org/bugs/show_bug.cgi?id=1818

           Summary: memdep should eliminate successive identical pure calls
           Product: new-bugs
           Version: unspecified
          Platform: Other
        OS/Version: Linux
            Status: NEW
          Severity: enhancement
          Priority: P2
         Component: new bugs
        AssignedTo: unassignedbugs at nondot.org
        ReportedBy: baldrick at free.fr
                CC: llvmbugs at cs.uiuc.edu


The testcase test/Analysis/BasicAA/pure-const-dce.ll has two "pure" calls
in a row:
        %tmp5 = call i32 @TestPure( i32 6 ) readonly
        %tmp6 = call i32 @TestPure( i32 6 ) readonly
One of them could be eliminated, but isn't.


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