Linux cli command llvm-reduce-17

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NAME 🖥️ llvm-reduce-17 🖥️

reduce - LLVM automatic testcase reducer.

SYNOPSIS

llvm-reduce [options] [input…]

DESCRIPTION

The llvm-reduce tool project that can be used for reducing the size of LLVM test cases. It works by removing redundant or unnecessary code from LLVM test cases while still preserving their ability to detect bugs.

If input is “-”, llvm-reduce reads from standard input. Otherwise, it will read from the specified filenames.

LLVM-Reduce is a useful tool for reducing the size and complexity of LLVM test cases, making it easier to identify and debug issues in the LLVM compiler infrastructure.

GENERIC OPTIONS

–help
Display available options (–help-hidden for more).

–abort-on-invalid-reduction
Abort if any reduction results in invalid IR

–in-place
WARNING: This option will replace your input file with the reduced version!

–ir-passes=<string>
A textual description of the pass pipeline, same as what’s passed to opt -passes.

-j <uint>
Maximum number of threads to use to process chunks. Set to 1 to disable parallelism.

–max-pass-iterations=<int>
Maximum number of times to run the full set of delta passes (default=5).

–mtriple=<string>
Set the target triple.

–preserve-debug-environment
Don’t disable features used for crash debugging (crash reports, llvm-symbolizer and core dumps)

–print-delta-passes
Print list of delta passes, passable to –delta-passes as a comma separated liste.

–skip-delta-passes=<string>
Delta passes to not run, separated by commas. By default, run all delta passes.

–starting-granularity-level=<uint>
Number of times to divide chunks prior to first test.

Note : Granularity refers to the level of detail at which the reduction process operates. A lower granularity means that the reduction process operates at a more coarse-grained level, while a higher granularity means that it operates at a more fine-grained level.

–test=<string>
Name of the interesting-ness test to be run.

–test-arg=<string>
Arguments passed onto the interesting-ness test.

–verbose
Print extra debugging information.

–write-tmp-files-as-bitcode
Always write temporary files as bitcode instead of textual IR.

-x={ir|mir}
Input language as ir or mir.

EXIT STATUS

llvm-reduce returns 0 under normal operation. It returns a non-zero exit code if there were any errors.

AUTHOR

Maintained by the LLVM Team (https://llvm.org/).

COPYRIGHT

2003-2024, LLVM Project

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