Generating Better Machine Code with SSA

Generating Better Machine Code with SSA

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SSA enables fast, accurate optimization algorithms for

9 of 14

9 of 14

SSA enables fast, accurate optimization algorithms for

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Generating Better Machine Code with SSA

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  1. 1 Generating better machine code with SSA
  2. 2 Timeline
  3. 3 amd64 - launched in Go 1.7
  4. 4 Compiler speed
  5. 5 The amd64 compiler is 10% slower.
  6. 6 The arm compiler is 10% faster!
  7. 7 Syntax tree
  8. 8 CFG - Control Flow Graph
  9. 9 SSA enables fast, accurate optimization algorithms for
  10. 10 Common Subexpression Elimination
  11. 11 Dead Store Elimination
  12. 12 Bounds Check Elimination
  13. 13 Rewrite rules can get pretty complicated
  14. 14 Rewrite rules make new ports easy!

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