Difference: StandardOil (11 vs. 12)

Revision 122009-04-12 - DennisHuo

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META TOPICPARENT name="IanChristopher"

Standard Oil Group Page

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Then DCE eliminates all but the last two statements. Again, RHS OpExpr values are treated as "special" in the same way RHS array accesses are.


Pseudo-Dominator Blocks

  • Although it was not feasible to spend time converting the code into SSA form, the framework for building dominator blocks was already in place.
  • The only reason SSA is needed is due to phi functions for value numbers killed in predecessors between the current block and its immediate dominator
  • We can simply ignore killed value numbers, but still import all "untouched" value numbers from the block's immediate dominator


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