Consider the following intermediate code: r1 = 5 vl1 = r1 jmp Simple.f@o jmp Simple.f@1 Simple.f@o: write vli 12 =7 13 = vl1 + r2 vl1 = r3 jmp Simple.f@o Simple.f@1: ro = vl1 return (i) Describe briefly what the optimisation dead code elimination involves. (ii) Show the result of applying dead code elimination to the intermediate code above.

Consider the following intermediate code: r1 = 5 vl1 = r1 jmp Simple.f@o jmp Simple.f@1 Simple.f@o: write vli 12 =7 13 = vl1 + r2 vl1 = r3 jmp Simple.f@o Simple.f@1: ro = vl1 return (i) Describe briefly what the optimisation dead code elimination involves. (ii) Show the result of applying dead code elimination to the intermediate code above.

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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