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Code Generation

Code Generation. Tiger Compiler Project. By Mu Li. Phases. Book chapter. Chapter 9-12 Codes about chapter 8 are provided. MIPS. move sw, lw add, sub, mul, div and, or jal, j, beq, bne, bgt… li, la addi, subi, … (optional) more refer to “The MIPS Info Sheet”. MIPS Registers.

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Code Generation

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  1. Code Generation Tiger Compiler Project By Mu Li

  2. Phases Li, Mu(limu.cn@gmail.com)

  3. Book chapter • Chapter 9-12 • Codes about chapter 8 are provided Li, Mu(limu.cn@gmail.com)

  4. MIPS • move • sw, lw • add, sub, mul, div • and, or • jal, j, beq, bne, bgt… • li, la • addi, subi, … (optional) • more refer to “The MIPS Info Sheet” Li, Mu(limu.cn@gmail.com)

  5. MIPSRegisters Li, Mu(limu.cn@gmail.com)

  6. Instruction selection Li, Mu(limu.cn@gmail.com)

  7. Package tiger.assem • Machine independent Li, Mu(limu.cn@gmail.com)

  8. Code Generation • Algorithm: Maximal Munch Li, Mu(limu.cn@gmail.com)

  9. Package tiger.mips • Codegen generates assemble codes from IR tree, which implements Maximal Munch Li, Mu(limu.cn@gmail.com)

  10. Liveness Analysis Li, Mu(limu.cn@gmail.com)

  11. Register Allocation • NP-hard • Using a simple greed algorithm to get proper solution • Spilling is optional Li, Mu(limu.cn@gmail.com)

  12. Packages Li, Mu(limu.cn@gmail.com)

  13. Implement steps • Construct AssemFlowGraph by InstrList • Liveness analysis • Generate InterferenceGraph • Coloring Li, Mu(limu.cn@gmail.com)

  14. Putting it all togerater • Add runtime.s at end of your codes Li, Mu(limu.cn@gmail.com)

  15. Interview • 1. 我发现你在XX包内写了一个YY变量，请问这个变量干什么用的? • 2(a) 如果我要增加一种ZZ语句，你打算? • 2(b) 请你说说你是怎么翻译initArray的? • 3(a) 杀手题…… • 3(b) 为什么你和张三的程序如此像? Li, Mu(limu.cn@gmail.com)

  16. Final submit • Deadline is 30th June • NO cheating! • ftp://compiler:compiler@202.120.61.1/Final/ Li, Mu(limu.cn@gmail.com)

  17. The end • Plz find out the comments written by Qian, Feng Li, Mu(limu.cn@gmail.com)

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