LLVM-CGDATA(1) LLVM LLVM-CGDATA(1) NAME llvm-cgdata - LLVM CodeGen Data Tool SYNOPSIS llvm-cgdata [commands] [options] (<binaries>|<.cgdata>) DESCRIPTION The :program:llvm-cgdata utility parses raw codegen data embedded in com- piled binary files and merges them into a single .cgdata file. It can also inspect and manipulate .cgdata files. Currently, the tool supports saving and restoring outlined hash trees and stable function maps, allowing for more efficient function outlining and function merging across modules in subsequent compilations. The design is extensible, allowing for the incor- poration of additional codegen summaries and optimization techniques. COMMANDS At least one of the following commands are required: --convert Convert a .cgdata file from one format to another. --merge Merge multiple raw codgen data in binaries into a single .cgdata file. --show Show summary information about a .cgdata file. OPTIONS llvm-cgdata supports the following options: --format=[text|binary] Specify the format of the output .cgdata file. --output=<string> Specify the output file name. --cgdata-version Print the version of the llvm-cgdata tool. EXAMPLES To convert a .cgdata file from binary to text format: $ llvm-cgdata --convert --format=text input.cgdata --output=out- put.data To merge multiple raw codegen data in object files into a single .cgdata file: $ llvm-cgdata --merge file1.o file2.o --output=merged.cgdata To show summary information about a .cgdata file: $ llvm-cgdata --show input.cgdata AUTHOR Maintained by the LLVM Team (https://llvm.org/). COPYRIGHT 2003-2026, LLVM Project 21 2026-08-27 LLVM-CGDATA(1)
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