The Advantages of Instance-Wise Reaching Definition Analyses in Array (S)SA
نویسنده
چکیده
Several parallelizing or general-purpose compilers have been using intermediate representations based on some form of single-assignment. Extending these representations to arrays has been done in two ways: Array SA, and Array SSA, the extension of the widely-used Static Single Assignment (SSA). We formally deene and compare Array SA and Array SSA, and show that (1) They both need instance-wise reaching-deenition analyses to (a) be streamlined and (b) allow a parallelizing compiler to choose the most appropriate form, (2) The \same name-same value" property holds for Array SSA in a restricted way only.
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