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Commit a1cdd2b1 authored by rtoy's avatar rtoy
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Micro-optimization: abs of 32-bit integers can be done without

branches.

compiler/generic/vm-tran.lisp:
o On sparc and ppc, make the abs deftransform give up for 32-bit
  integers, to give the VOP a chance.

compiler/ppc/arith.lisp:
o Add vop for abs for (signed-byte 32).
parent 7b9a9f98
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