profdata_merge_simple

#!/usr/bin/env bash

set -x
set -e

PROFRAW_DIR=$1
OUTPUT_FILENAME=$2

# Reads the paths to prof data files from INPUT_FILENAME and then merges them
# into OUTPUT_FILENAME.
TARGETS=($(find ${PROFRAW_DIR} -name '*.profraw'))

if [[ ${#TARGETS[@]}-eq 0 ]];then
echo"Error! No *.profraw targets to merge!"
exit 1
fi

FIRST_TARGET=${TARGETS[0]}
xcrun -sdk macosx llvm-profdata merge -output-file=${OUTPUT_FILENAME}${FIRST_TARGET}

if [[ ${#TARGETS[@]}-eq 1 ]];then
exit 0
fi

# Reduce over the rest of the targets
fortin"${TARGETS[@]:1}";do
 xcrun -sdk macosx llvm-profdata merge -o=${OUTPUT_FILENAME}.tmp ${t}${OUTPUT_FILENAME}
 mv ${OUTPUT_FILENAME}.tmp ${OUTPUT_FILENAME}
done

set +e
set +x