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Description |
Register coalescing.
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Synopsis |
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Documentation |
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Do register coalescing on this top level thing
For Reg -> Reg moves, if the first reg dies at the same time the second reg is born
then the mov only serves to join live ranges. The two regs can be renamed to be
the same and the move instruction safely erased.
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Slurp out mov instructions that only serve to join live ranges.
During a mov, if the source reg dies and the destiation reg is born
then we can rename the two regs to the same thing and eliminate the move.
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Produced by Haddock version 2.6.1 |