[llvm-bugs] [Bug 49392] New: -debug-pass fails to output.

[via llvm-bugs]

https://bugs.llvm.org/show_bug.cgi?id=49392

            Bug ID: 49392
           Summary: -debug-pass fails to output.
           Product: new-bugs
           Version: trunk
          Hardware: PC
                OS: Linux
            Status: NEW
          Severity: enhancement
          Priority: P
         Component: new bugs
          Assignee: unassignedbugs at nondot.org
          Reporter: suochenyao at 163.com
                CC: htmldeveloper at gmail.com, llvm-bugs at lists.llvm.org

-debug-pass=Arguments in opt has failed to output anything for several days. Is
there something wrong with my build or useage?

$ clang -v
clang version 13.0.0 (/home/suocy/src/llvm-dev/llvm-project/llvm/tools/clang
ea1a1ebbc673d810f1abf6cb58a40b5ec916ff07)
Target: x86_64-unknown-linux-gnu
Thread model: posix
InstalledDir: /home/suocy/bin/llvm-dev/bin
Found candidate GCC installation:
/opt/rh/devtoolset-7/root/usr/lib/gcc/x86_64-redhat-linux/7
Found candidate GCC installation: /usr/lib/gcc/x86_64-redhat-linux/4.8.2
Found candidate GCC installation: /usr/lib/gcc/x86_64-redhat-linux/4.8.5
Selected GCC installation:
/opt/rh/devtoolset-7/root/usr/lib/gcc/x86_64-redhat-linux/7
Candidate multilib: .;@m64
Candidate multilib: 32;@m32
Selected multilib: .;@m64

$ llvm-as < /dev/null | opt -O3 -disable-output -debug-pass=Arguments 2>&1

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