torch-mlir/build_tools/cmake_configure.sh

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#!/bin/bash
# Configures the project with default options.
# LLVM/MLIR should be installed into the build directory first by running
# ./build_tools/install_mlir.sh.
#
# Usage (for in-tree build/ directory):
# ./build_tools/cmake_configure.sh [ARGS...]
# Usage (for arbitrary build/ directory):
# BUILD_DIR=/build ./build_tools/cmake_configure.sh [ARGS...]
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set -e
# Setup directories.
td="$(realpath $(dirname $0)/..)"
build_dir="$(realpath "${BUILD_DIR:-$td/build}")"
install_mlir="$build_dir/install-mlir"
build_mlir="$build_dir/build-mlir"
declare -a extra_opts
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if ! [ -d "$install_mlir/include/mlir" ]; then
echo "MLIR install path does not appear valid: $install_mlir"
exit 1
fi
mkdir -p "$build_dir"
# Make sure we are using python3.
function probe_python() {
local python_exe="$1"
local found
local command
command="import sys
if sys.version_info.major >= 3: print(sys.executable)"
set +e
found="$("$python_exe" -c "$command")"
if ! [ -z "$found" ]; then
echo "$found"
fi
}
python_exe=""
for python_candidate in python3 python; do
python_exe="$(probe_python "$python_candidate")"
if ! [ -z "$python_exe" ]; then
break
fi
done
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echo "Using python: $python_exe"
if [ -z "$python_exe" ]; then
echo "Could not find python3"
exit 1
fi
# Detect windows.
if (which cygpath 2>/dev/null); then
echo "Using windows path mangling and flags"
DEBUG_FLAGS=""
function translate_path() {
cygpath --windows "$1"
}
else
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DEBUG_FLAGS="-g3 -gdwarf-2"
function translate_path() {
echo "$1"
}
fi
# Find llvm-lit.
LLVM_LIT=""
for candidate_lit in "$build_mlir/bin/llvm-lit" "$build_mlir/bin/llvm-lit.py"
do
if [ -f "$candidate_lit" ]; then
LLVM_LIT="$candidate_lit"
break
fi
done
if [ -z "$LLVM_LIT" ]; then
echo "WARNING: Unable to find llvm-lit"
fi
echo "Using llvm-lit: $LLVM_LIT"
# Write a .env file for python tooling.
function write_env_file() {
echo "Updating $build_dir/.env file"
echo "PYTHONPATH=\"$(realpath "$build_dir/python_native"):$(realpath "$build_dir/python")\"" > "$build_dir/.env"
echo "NUMPY_EXPERIMENTAL_ARRAY_FUNCTION=1" >> "$build_dir/.env"
if ! cp "$build_dir/.env" "$td/.env"; then
echo "WARNING: Failed to write $td/.env"
fi
}
write_env_file
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set -x
cmake -GNinja \
"-H$td" \
"-B$build_dir" \
"-DCMAKE_BUILD_TYPE=Debug" \
"-DCMAKE_CXX_FLAGS_DEBUG=$DEBUG_FLAGS" \
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"-DPYTHON_EXECUTABLE=$python_exe" \
"-DMLIR_DIR=$install_mlir/lib/cmake/mlir" \
"-DLLVM_EXTERNAL_LIT=$LLVM_LIT" \
"-DLLVM_ENABLE_WARNINGS=ON" \
"-DCMAKE_EXPORT_COMPILE_COMMANDS=TRUE" \
"${extra_opts[@]}" \
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"$@"