[Final Homework] Performance Competition (due: 6/18)

[Lee-Janggun]

Performance Competition.

• instruction
  • https://docs.google.com/presentation/d/1SqtU-Cn60Sd1jkbO0OSsRYKPMIkul0eZoYG9KpMugFE/edit#slide=id.g8085bd6ec8_44_0
  • Since your solution will be linked with some driver, you need to follow the LP64D ABI, which is the default ABI of RV64G ISA.
    • RVG Calling Convention: 18.2 of https://riscv.org/wp-content/uploads/2015/01/riscv-calling.pdf
    • Godbolt's reference solution to exotic_arguments.c: https://godbolt.org/z/bzn6v7Pf8
  • Use la pseudo instruction instead of HI20 and LO12 pair: https://github.com/kaist-cp/cs420/issues/168#issuecomment-653044107
  • Check that your code does not have unaligned memory access.
  • The stack pointer should always be kept 16-byte aligned. (p3 of https://riscv.org/wp-content/uploads/2015/01/riscv-calling.pdf)
  • Also refer to #467 and the model solution (TBA).
• self grader: https://github.com/kaist-cp/kecc-public#run-benchmark-for-performance-competition
  • It will build your compiler, build benchmark codes, run them, and measure the elapsed CPU cycles. The average is your score (lower is better).
• submission: run ./scripts/make-submissions.sh and then submit final.zip.
  • TBA
  • There is 10 minute timeout for each submission.
• leaderboard
  • TBA
  • The next score on the leaderboard will be updated to the minimum of # of cycles on the leaderboard and # of cycle of the last successful submission on gg.
• due: 6/18 23:59:59 (KST = UTC+9)
• tips
  • https://github.com/kaist-cp/cs420/issues/406
  • https://github.com/kaist-cp/cs420/issues/410