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[smlnj] View of /sml/trunk/compiler/CodeGen/main/clusterAnnotation.sml
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View of /sml/trunk/compiler/CodeGen/main/clusterAnnotation.sml

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Revision 823 - (download) (annotate)
Tue May 8 21:25:15 2001 UTC (19 years, 5 months ago) by george
Original Path: sml/trunk/src/compiler/CodeGen/main/clusterAnnotation.sml
File size: 621 byte(s)
omit frame pointer optimization
(* This file is a temporary hack that records if the virtual 
 * frame pointer is being used for the current cluster compilation.
 * useVfp is required for spilling, however, at the current time the
 * spill callbacks only take the block annotations and nothing else.
 * Therefore the spill routine checks this variable to decide which
 * base pointer to use.
 * Eventually the spill call backs will take a datatype indicating the
 * source of the annotation, and the cluster annotation will also be
 * bundled as an input. But until then ...

structure ClusterAnnotation = struct
  val useVfp = ref false

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