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hw1 - CS 415 Compilers Problem Set 1 Due date Wednesday...

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CS 415 Compilers: Problem Set 1 Due date: Wednesday, February 3, in recitation Problem 1 – Code Optimization Goals Optimizing compilers may have different optimization objectives such as producing (1) fast code, (2) code with a small footprint (small code size), or (3) code that uses less power/energy. Show that producing fast code or producing code with a small footprint are different optimization objectives. You can do this by sketching two programs that semantically do the same, but are different in terms of execution speed and code size: code “A” is fast, but large, and program “B” is compact, but slow. Your program sketches can be pseudo code, but should support your argument. Note: Explicitly list all the assumptions you make about the characteristics of your target architecture. Problem 2 – ILOC programming Appendix A in our textbook (EaC) discusses ILOC, a linear assembly code for a simple abstract RISC machine. Here, you will also be able to use an additional instruction that
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