compiler for SysY2022 language.
Usage:
compiler [options] file
Options:
-? Display this information.
-S Compile only; do not assemble or link.
-o <file> Place the output into <file>.
The following options control optimizations:
-O<number> Set optimization level to <number>.
| Function name | Description |
|---|---|
| ParseFile | Parse source file |
| ParseString | Parse String |
| Name | Function name | Description |
|---|---|---|
| Constant Folding | FoldFltUnop、FoldFltBinop、FoldIntBinop、FoldIntUnop | |
| Loop Inversion | copy_loop_headers | |
| Inline Transform | inline_transform | |
| SSA Form Construction | build_ssa | |
| Sparse Conditional Constant Propagation | SparseCondConstProp | |
| Global Value Numbering | GlobalValueNumbering | |
| SSA Form Elimination | remove_ssa_form | |
| SSA Form Elimination | rewrite_out_of_ssa | |
| Lazy Code Motion | LazyCodeMotion | |
| Copy Propagation | copyprop | |
| Local Copy Propagation | local_copyprop_pass | |
| Dead Code Elimination | perform_ssa_dce | |
| Strength Reduction | StraightLineStrengthReduce | |
| Elimination of Useless Control Flow | cleanup_cfg | |
| Global Variable Localization | GlobalVariableLocalization | |
| Operator Strength Reduction | OSR | |
| Loop Unrolling | unroll_loops | |
| Tree Height Reducing | treeheight |
| Name | Function name | Description |
|---|---|---|
| Instruction Selection and Scheduling | InstSelectorArm32 | Algorithm: TreeSeq |
| Register Allocation | LinearScanAllocator | Algorithm: Linear Scan |
| Register Allocation | ra_colorize_graph | Algorithm: Graph Coloring |
| if convert | if_convertArm32 |
Before you start using the compiler, please review the requirements listed below. Familiarizing yourself with the necessary hardware and software in advance may save you some trouble.
compiler is known to run on the following host platforms:
| OS | Arch | Compilers |
|---|---|---|
| Linux | x86 | GCC, Clang |
| Linux | amd64 | GCC, Clang |
| Linux | ARM | GCC, Clang |
| Windows | x86 | Visual Studio |
| Windows x64 | x86-64 | Visual Studio |
To compile compiler, you need to install several packages. The following table lists the required packages. The Package column is the common name of the package on which the compiler depends. The Version column provides the "known available" version of the package. The Notes column describes how the compiler uses the package and provides other details.
| Package | Version | Notes |
|---|---|---|
| CMake | >=3.20.0 | Makefile/workspace generator |
| GNU Make | 3.79, 3.79.1 | Makefile/build processor |
| flex | 2.6.4 | Lexical analysis |
| bison | 3.8.2 | Syntax analysis |
| iburg | N/A | Tree pattern matching |
| graphviz | 11.0.0 | Graphical output |
Copyright (c) 2025 Xi’an Jiaotong University
Authors: Tongchao Miao、Xingjun Zhang、Zhendong Tan、Heng Chen、Yancheng Pan