Compiler Optimization Techniques

• The following optimizations are built into the compiler:

  • general
    • procedure inlining
    • data and array padding
  • loop based:
    • Loop interchange
    • outer and inner loop unrolling
    • cache blocking
    • loop fusion (merge) and fission (split)
  • Code generation:
    • software pipelining
    • instruction reordering

• Algorithm presentation in the program such that compiler can apply the optimization techniques -

• - leads to optimal program performance on the machine.

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