[llvm-bugs] [Bug 48151] New: Pass modifies its input and doesn't report it: Promote 'by reference' arguments to scalars

[via llvm-bugs]

https://bugs.llvm.org/show_bug.cgi?id=48151

            Bug ID: 48151
           Summary: Pass modifies its input and doesn't report it: Promote
                    'by reference' arguments to scalars
           Product: libraries
           Version: trunk
          Hardware: PC
                OS: Linux
            Status: NEW
          Severity: normal
          Priority: P
         Component: Global Analyses
          Assignee: unassignedbugs at nondot.org
          Reporter: paulsson at linux.vnet.ibm.com
                CC: llvm-bugs at lists.llvm.org

Created attachment 24153
  --> https://bugs.llvm.org/attachment.cgi?id=24153&action=edit
reduced testcase

build-exp/bin/opt -mtriple=s390x-unknown-linux -o out.opt.ll
./tc_passmodreport.ll -O3

UNREACHABLE executed at .../llvm/lib/Analysis/CallGraphSCCPass.cpp:484!

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