This project is a toy compiler for Mx* language to RISC-V assembly, implemented in Java.
It is a course project.
It reads code from code.txt, prints IR in ir.txt and prints RISC-V assembly in test.s. The input file is test.in.
| Contents | Descriptions |
|---|---|
| Parser | Using ANTLR 4. |
| AST | Nothing special. |
| IR | The quadruple IR. |
| Optimization | Function Inlining. |
| Load global variables in advance and postpone store. | |
| Loop-invariant code motion (on SSA). | |
| Sparse conditional constant propagation (on SSA). | |
| Common subexpression elimination (on SSA). | |
| Dead code elimination (on SSA). | |
| Control flow graph simplification (on both SSA and non-SSA). | |
| ...... (some others) | |
| Register Allocation | Graph coloring. |
| Assembly | RISC-V. |
B2 baseline (highest baseline in that course project) passed.
Slightly better than GCC O1.