[llvm-bugs] [Bug 47501] New: [InstCombine] Unreported IR changes from InstCombine

[via llvm-bugs]

https://bugs.llvm.org/show_bug.cgi?id=47501

            Bug ID: 47501
           Summary: [InstCombine] Unreported IR changes from InstCombine
           Product: libraries
           Version: trunk
          Hardware: PC
                OS: Windows NT
            Status: NEW
          Severity: enhancement
          Priority: P
         Component: Scalar Optimizations
          Assignee: unassignedbugs at nondot.org
          Reporter: dmajor at mozilla.com
                CC: llvm-bugs at lists.llvm.org

Created attachment 23949
  --> https://bugs.llvm.org/attachment.cgi?id=23949&action=edit
instcombine.ll

With expensive checks enabled:
$ opt -instcombine -S instcombine.ll
Pass modifies its input and doesn't report it: Combine redundant instructions

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