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Speed up find-unused-diagnostics. Now runs in less than a second instead of more than a minute. 

llvm-svn: 172330
This commit is contained in:
Benjamin Kramer 2013-01-12 21:39:06 +00:00
parent e392a9f2b0
commit 6590abb384
1 changed files with 7 additions and 11 deletions
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18
clang/utils/find-unused-diagnostics.sh Normal file → Executable file
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@ -4,16 +4,12 @@
# in Diagnostic*.td files but not used in sources.
#
ALL_DIAGS=$(mktemp)
ALL_SOURCES=$(mktemp)
# Gather all diagnostic identifiers from the .td files.
ALL_DIAGS=$(grep -E --only-matching --no-filename '(err_|warn_|ext_|note_)[a-z_]+' ./include/clang/Basic/Diagnostic*.td)
grep -E --only-matching --no-filename '(err_|warn_|ext_|note_)[a-z_]+ ' ./include/clang/Basic/Diagnostic*.td > $ALL_DIAGS
find lib include tools -name \*.cpp -or -name \*.h > $ALL_SOURCES
for DIAG in $(cat $ALL_DIAGS); do
if ! grep -r $DIAG $(cat $ALL_SOURCES) > /dev/null; then
echo $DIAG
fi;
done
rm $ALL_DIAGS $ALL_SOURCES
# Now look for all potential identifiers in the source files.
ALL_SOURCES=$(find lib include tools -name \*.cpp -or -name \*.h)
DIAGS_IN_SOURCES=$(grep -E --only-matching --no-filename '(err_|warn_|ext_|note_)[a-z_]+' $ALL_SOURCES)
# Print all diags that occur in the .td files but not in the source.
diff -u <(sort -u <<< "$ALL_DIAGS") <(sort -u <<< "$DIAGS_IN_SOURCES") | sed -En 's/^-([a-z_]+)/\1/p'