[llvm-bugs] [Bug 35254] New: NewGVN needs a similar fix to D39637

[via llvm-bugs]

https://bugs.llvm.org/show_bug.cgi?id=35254

            Bug ID: 35254
           Summary: NewGVN needs a similar fix to D39637
           Product: libraries
           Version: trunk
          Hardware: PC
                OS: All
            Status: NEW
          Severity: enhancement
          Priority: P
         Component: Scalar Optimizations
          Assignee: unassignedbugs at nondot.org
          Reporter: dberlin at dberlin.org
                CC: llvm-bugs at lists.llvm.org

I believe when we create phis of things that didn't exist before, we have to
make sure to modify the nsw/nuw flags appropriately, as we will otherwise have
the same issue as D39637 fixes

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