- The efficiency is
*O(n)*: This is important because we should minimize JIT overhead. - Decouples type inference from code generation: This will make it easier if we decide to switch from LLVM to a GNU equivalent.
- Type bounds are good: The algorithm is able to assign different types to the same variable when the variable is used in different contexts.

Each variable in the SSA is then assigned a type from our lattice. For example, in the code

[1] L. D. Rose and D. Padua. Techniques for the Translation of MATLAB Programs into Fortran 90. ACM Transactions on Programming Languages and Systems, 21(2):286–323, Mar. 1999.

[2]George Almási and David Padua. 2002. MaJIC: compiling MATLAB for speed and responsiveness. SIGPLAN Not. 37, 5 (May 2002), 294-303.

[3] M.Sc. Thesis -

b = 1; for i=0:5 temp = 5; b = b + temp; temp = [5 5 5]; b = b + temp; endforThe algorithm is able to differentiate between the two occurrences of

*temp*. The algorithm will also realizes that*b*is a matrix inside of the loop (once matrices are added to type type lattice). Then before the start of the loop,*b*, will be converted to a single element matrix. This means we can generate matrix addition operations inside of the loop.[1] L. D. Rose and D. Padua. Techniques for the Translation of MATLAB Programs into Fortran 90. ACM Transactions on Programming Languages and Systems, 21(2):286–323, Mar. 1999.

[2]George Almási and David Padua. 2002. MaJIC: compiling MATLAB for speed and responsiveness. SIGPLAN Not. 37, 5 (May 2002), 294-303.

[3] M.Sc. Thesis -

*McVM: an Optimizing Virtual Machine for the MATLAB Programming Language*
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