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#!/usr/bin/env bash
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# ./scripts/verify_ir.sh test/test_case/functional/simple_add.sy test/test_result/function/ir --run
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set -euo pipefail
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if [[ $# -lt 1 || $# -gt 3 ]]; then
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echo "用法: $0 <input.sy> [output_dir] [--run]" >&2
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exit 1
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fi
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input=$1
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out_dir="test/test_result/ir"
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run_exec=false
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input_dir=$(dirname "$input")
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shift
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while [[ $# -gt 0 ]]; do
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case "$1" in
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--run)
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run_exec=true
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;;
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*)
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out_dir="$1"
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;;
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esac
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shift
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done
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if [[ ! -f "$input" ]]; then
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echo "输入文件不存在: $input" >&2
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exit 1
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fi
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compiler="./build/bin/compiler"
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if [[ ! -x "$compiler" ]]; then
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echo "未找到编译器: $compiler ，请先构建（如: mkdir -p build && cd build && cmake .. && make -j）" >&2
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exit 1
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fi
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mkdir -p "$out_dir"
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base=$(basename "$input")
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stem=${base%.sy}
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out_file="$out_dir/$stem.ll"
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stdin_file="$input_dir/$stem.in"
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expected_file="$input_dir/$stem.out"
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"$compiler" --emit-ir "$input" > "$out_file"
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echo "IR 已生成: $out_file"
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if [[ "$run_exec" == true ]]; then
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if ! command -v clang >/dev/null 2>&1; then
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echo "未找到 clang，无法编译可执行文件。请安装 LLVM/Clang。" >&2
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exit 1
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fi
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exe="$out_dir/$stem"
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stdout_file="$out_dir/$stem.stdout"
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actual_file="$out_dir/$stem.actual.out"
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actual_norm="$out_dir/$stem.actual.norm"
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expected_norm="$out_dir/$stem.expected.norm"
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# 直接让 clang 优化 .ll，可显著降低大规模 Lab2 performance 用例运行时间。
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# -fwrapv 保持有符号整数按补码回绕，避免与当前 IR 的测试语义偏离。
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if ! clang -O2 -fwrapv -Wno-override-module "$out_file" sylib/sylib.c -o "$exe"; then
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if ! command -v llc >/dev/null 2>&1; then
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echo "未找到 llc，且 clang 直接编译 IR 失败，无法运行 IR。" >&2
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exit 1
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fi
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obj="$out_dir/$stem.o"
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llc -filetype=obj "$out_file" -o "$obj"
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clang "$obj" sylib/sylib.c -o "$exe"
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fi
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echo "运行 $exe ..."
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set +e
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if [[ -f "$stdin_file" ]]; then
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"$exe" < "$stdin_file" > "$stdout_file"
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else
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"$exe" > "$stdout_file"
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fi
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status=$?
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set -e
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cat "$stdout_file"
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echo "退出码: $status"
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{
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cat "$stdout_file"
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if [[ -s "$stdout_file" ]] && (( $(tail -c 1 "$stdout_file" | wc -l) == 0 )); then
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printf '\n'
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fi
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printf '%s\n' "$status"
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} > "$actual_file"
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if [[ -f "$expected_file" ]]; then
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perl -0pe 's/\r\n/\n/g; s/\r/\n/g; s/\n?\z//' "$expected_file" > "$expected_norm"
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perl -0pe 's/\r\n/\n/g; s/\r/\n/g; s/\n?\z//' "$actual_file" > "$actual_norm"
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if diff -u "$expected_norm" "$actual_norm"; then
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echo "输出匹配: $expected_file"
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else
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echo "输出不匹配: $expected_file" >&2
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echo "实际输出已保存: $actual_file" >&2
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exit 1
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fi
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else
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echo "未找到预期输出文件，跳过比对: $expected_file"
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fi
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fi
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