6.5 : Compiler Optimizations
Welcome to Lecture 32 of the course "C Programming" by Prof. Nitin Chandrachoodan.
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Video Overview
This lecture explores compiler optimizations and their impact on variable addressing in C programming. Learn how compilers balance correctness with speed and size by eliminating unnecessary code and memory access. Using Compiler Explorer (godbolt.org) with the RISC-V architecture, we analyze assembly code generated from a simple C loop to see how optimizations determine whether variables have dedicated memory locations. We also discuss potential conflicts with hardware requirements when accessing peripheral memory, highlighting how optimizations can influence both software efficiency and hardware interaction.
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