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#!/usr/bin/env bash
#./scripts/gen_ir.sh test/test_case/simple_add.sy --run
set -euo pipefail
if [[ $# -lt 1 || $# -gt 3 ]]; then
echo "用法: $0 <input.sy> [output_dir] [--run]" >&2
exit 1
fi
input=$1
out_dir="out/ir"
run_exec=false
shift
while [[ $# -gt 0 ]]; do
case "$1" in
--run)
run_exec=true
;;
*)
out_dir="$1"
;;
esac
shift
done
if [[ ! -f "$input" ]]; then
echo "输入文件不存在: $input" >&2
exit 1
fi
compiler="./build/bin/compiler"
if [[ ! -x "$compiler" ]]; then
echo "未找到编译器: $compiler ,请先构建(如: mkdir -p build && cd build && cmake .. && make -j" >&2
exit 1
fi
mkdir -p "$out_dir"
base=$(basename "$input")
stem=${base%.sy}
out_file="$out_dir/$stem.ll"
"$compiler" "$input" > "$out_file"
echo "IR 已生成: $out_file"
# 为 LLVM 使用准备纯净 IR去掉可能的 AST 调试输出),写入同目录。
pure_file="$out_dir/$stem.ir.ll"
awk '/^define /{p=1} p' "$out_file" > "$pure_file"
if [[ ! -s "$pure_file" ]]; then
echo "警告: 未找到 IR 定义(文件可能只包含 AST 输出),未生成 $pure_file" >&2
else
echo "纯净 IR 已生成: $pure_file"
fi
if [[ "$run_exec" == true ]]; then
if ! command -v llc >/dev/null 2>&1; then
echo "未找到 llc无法运行 IR。请安装 LLVM。" >&2
exit 1
fi
if ! command -v clang >/dev/null 2>&1; then
echo "未找到 clang无法链接可执行文件。请安装 LLVM/Clang。" >&2
exit 1
fi
obj="$out_dir/$stem.o"
exe="$out_dir/$stem.exe"
llc -filetype=obj "$pure_file" -o "$obj"
clang "$obj" -o "$exe"
echo "运行 $exe ..."
set +e
"$exe"
status=$?
set -e
echo "退出码: $status"
fi