[LLVMbugs] [Bug 8886] New: GCC testcases that clang fails to devirtualize

[bugzilla-daemon at llvm.org]

http://llvm.org/bugs/show_bug.cgi?id=8886

           Summary: GCC testcases that clang fails to devirtualize
           Product: clang
           Version: trunk
          Platform: PC
        OS/Version: Linux
            Status: NEW
          Severity: normal
          Priority: P
         Component: C++
        AssignedTo: unassignedclangbugs at nondot.org
        ReportedBy: baldrick at free.fr
                CC: llvmbugs at cs.uiuc.edu, dgregor at apple.com


The attached testcases were recently posted to the gcc mailing list.  GCC from
top-of-tree apparently manages to completely devirtualize the code in "main"
for
each of them, but clang does not at -O4.

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