xref: /openbsd-src/gnu/llvm/clang/utils/find-unused-diagnostics.sh (revision e5dd70708596ae51455a0ffa086a00c5b29f8583)
1*e5dd7070Spatrick#!/usr/bin/env bash
2*e5dd7070Spatrick#
3*e5dd7070Spatrick# This script produces a list of all diagnostics that are defined
4*e5dd7070Spatrick# in Diagnostic*.td files but not used in sources.
5*e5dd7070Spatrick#
6*e5dd7070Spatrick
7*e5dd7070Spatrick# Gather all diagnostic identifiers from the .td files.
8*e5dd7070SpatrickALL_DIAGS=$(grep -E --only-matching --no-filename '(err_|warn_|ext_|note_)[a-z_]+' ./include/clang/Basic/Diagnostic*.td)
9*e5dd7070Spatrick
10*e5dd7070Spatrick# Now look for all potential identifiers in the source files.
11*e5dd7070SpatrickALL_SOURCES=$(find lib include tools utils -name \*.cpp -or -name \*.h)
12*e5dd7070SpatrickDIAGS_IN_SOURCES=$(grep -E --only-matching --no-filename '(err_|warn_|ext_|note_)[a-z_]+' $ALL_SOURCES)
13*e5dd7070Spatrick
14*e5dd7070Spatrick# Print all diags that occur in the .td files but not in the source.
15*e5dd7070Spatrickcomm -23 <(sort -u <<< "$ALL_DIAGS") <(sort -u <<< "$DIAGS_IN_SOURCES")
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