[llvm-bugs] [Bug 33192] New: ThinLTO and --wrap don't get along

via llvm-bugs llvm-bugs at lists.llvm.org
Fri May 26 20:10:18 PDT 2017


            Bug ID: 33192
           Summary: ThinLTO and --wrap don't get along
           Product: libraries
           Version: trunk
          Hardware: PC
                OS: All
            Status: NEW
          Severity: enhancement
          Priority: P
         Component: Interprocedural Optimizations
          Assignee: unassignedbugs at nondot.org
          Reporter: davide at freebsd.org
                CC: charles.saternos at gmail.com, llvm-bugs at lists.llvm.org,
                    peter at pcc.me.uk, rafael.espindola at gmail.com,
                    tejohnson at google.com

Take the testcase provided by Rafael in:


and replace `-flto` with `-flto=thin`. You'll observe a crash in llvm.
This is a separate problem than the one reported in the original PR.
Charlie is starting a GSoC on ThinLTO so me and Teresa were looking for small
bugs for him to familiarize. I think this is a good one, if he's OK (otherwise
somebody of us should take a look).

Charlie, what do you think?

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