[llvm-bugs] [Bug 33773] New: queens.c (From the testsuite) crashes with PGO + new pass manager

[via llvm-bugs]

https://bugs.llvm.org/show_bug.cgi?id=33773

            Bug ID: 33773
           Summary: queens.c (From the testsuite) crashes with PGO + new
                    pass manager
           Product: libraries
           Version: trunk
          Hardware: PC
                OS: All
            Status: NEW
          Severity: enhancement
          Priority: P
         Component: Core LLVM classes
          Assignee: unassignedbugs at nondot.org
          Reporter: davide at freebsd.org
                CC: chisophugis at gmail.com, davidxl at google.com,
                    llvm-bugs at lists.llvm.org, simon.f.whittaker at gmail.com

Source:

https://github.com/llvm-mirror/test-suite/blob/master/SingleSource/Benchmarks/McGill/queens.c

/home/davide/work/llvm/build-release/bin/clang -fprofile-instr-generate
-fexperimental-new-pass-manager -O3 queens.c
instrprof failed to lower an increment
UNREACHABLE executed at
../lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp:5804!

I'll try to reduce if I get a chance, but reporting sooner rather than later so
that I don't forget.

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