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67 lines
1.7 KiB
ReStructuredText
67 lines
1.7 KiB
ReStructuredText
llvm-cgdata - LLVM CodeGen Data Tool
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====================================
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.. program:: llvm-cgdata
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SYNOPSIS
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--------
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:program:`llvm-cgdata` [**commands**] [**options**] (<binaries>|<.cgdata>)
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DESCRIPTION
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-----------
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The :program:llvm-cgdata utility parses raw codegen data embedded in compiled
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binary files and merges them into a single .cgdata file. It can also inspect
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and manipulate .cgdata files. Currently, the tool supports saving and restoring
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outlined hash trees and stable function maps, allowing for more efficient
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function outlining and function merging across modules in subsequent
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compilations. The design is extensible, allowing for the incorporation of
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additional codegen summaries and optimization techniques.
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COMMANDS
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--------
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At least one of the following commands are required:
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.. option:: --convert
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Convert a .cgdata file from one format to another.
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.. option:: --merge
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Merge multiple raw codgen data in binaries into a single .cgdata file.
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.. option:: --show
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Show summary information about a .cgdata file.
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OPTIONS
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-------
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:program:`llvm-cgdata` supports the following options:
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.. option:: --format=[text|binary]
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Specify the format of the output .cgdata file.
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.. option:: --output=<string>
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Specify the output file name.
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.. option:: --cgdata-version
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Print the version of the llvm-cgdata tool.
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EXAMPLES
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--------
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To convert a .cgdata file from binary to text format:
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$ llvm-cgdata --convert --format=text input.cgdata --output=output.data
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To merge multiple raw codegen data in object files into a single .cgdata file:
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$ llvm-cgdata --merge file1.o file2.o --output=merged.cgdata
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To show summary information about a .cgdata file:
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$ llvm-cgdata --show input.cgdata
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