HCQC : HPC Compiler Quality Checker
summary
Tool called HCQC analyzes kernel assembly and static binary data and reports concrete metrics — spill counts, register-selection effectiveness, instruction-mix and move/instruction generation — for HPC kernels (lbm, mvm and similar) that typically consume >80% of runtime. The system parses compiler configs and produces per-kernel reports and graphs; evaluation of GCC versus LLVM shows measurable differences (examples include up to ~2× higher spill-related instructions and slower inner-loop codegen for one compiler), and the checker produces actionable diagnostics.
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chapters (12)
- 0:00Introduction to HCQC
- 1:48Configuring quality checks
- 3:12Sample programs and kernels
- 5:00Compiler optimizations comparison
- 7:11Spill code and register pressure
- 10:04Instruction selection and optimization
- 12:34Register allocation challenges
- 15:04Live range analysis and rewriting
- 17:15Pattern matching and branching
- 19:04Benchmarking and performance
- 21:53Tool implementation and results
- 24:12Future directions and Q&A
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