15-745 Spring '23
Class Handouts

Lecture Notes

• Lecture 1: Overview of Optimizations (Jan. 17) 4up, 1up
• Lecture 2: Local Optimizations (Jan. 18) 4up, 1up
• Lecture 3: The LLVM Compiler: Overview (Jan. 19) 1up, 4up
• Lecture 4: Introduction to Data Flow Analysis (Jan. 24) 4up, 1up
• Lecture 5: Foundations of Data Flow Analysis (Jan. 25) 4up, 1up
• Lecture 6: The LLVM Compiler: Further Details (Jan. 26) 1up, 4up
• Lecture 7: Global Common Subexpression Elimination, Constant Folding (Jan. 31) 4up, 1up
• Lecture 8: Intro to Static Single Assignment (Feb. 1) 4up, 1up
• Lecture 9: SSA-style Optimizations (Feb. 2) 4up, 1up
• Lecture 10: Loop Invariant Code Motion (Feb. 7) 4up, 1up
• Lecture 11: Induction Variables and Strength Reduction (Feb. 8) 4up, 1up
• Lecture 12: Partial Redundancy Elimination (Feb. 9) 4up, 1up
• Lecture 13: Lazy Code Motion (Feb. 14) 4up, 1up
• Lecture 14: Region-Based Analysis (Feb. 15) 4up, 1up
• Lecture 15: Pointer Analysis (Feb. 16) 4up, 1up
• Lecture 16: Dynamic Code Optimization (Feb. 21) 4up, 1up
• Lecture 17: Register Allocation: Coloring and Spilling (Feb. 22) 4up, 1up
  • Bonus Material: Register Allocation: Coalescing 4up, 1up
• Lecture 18: Memory Hierarchy Optimizations (Feb. 23) 4up, 1up
• Lecture 23: List Scheduling (Mar. 15) 4up, 1up
• Lecture 24: Global Scheduling and Software Pipelining (Mar. 16) 4up, 1up
• Lectures 26-27: Data Prefetching (Mar. 21 and 22)
  • Slides: 4up, 1up
• Lecture 28: Array Dependence Analysis (Mar. 23) 4up, 1up
• Lecture 29: Thread-Level Speculation (Mar. 28) 4up, 1up

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