[PATCH] D8705: ScheduleDAGInstrs::buildSchedGraph() handling of memory dependecies rewritten.

[Jonas Paulsson via llvm-commits]

jonpa updated this revision to Diff 42965.
jonpa added a comment.

Removed unused MayAlias variables.

Note: https://llvm.org/bugs/show_bug.cgi?id=25794 is an example of a huge region not handled well by the current scheduler. This reminds me that we might want to find good values for -dag-maps-huge-region. Default is now 1000, which is very high. I think 50-100 might actually work well generally, but this I have only tested on an out-of-tree target. Regardless, this patch was much faster already due to the reduction of maps, at least in this case.
.


http://reviews.llvm.org/D8705

Files:
  include/llvm/CodeGen/PseudoSourceValue.h
  include/llvm/CodeGen/ScheduleDAG.h
  include/llvm/CodeGen/ScheduleDAGInstrs.h
  lib/CodeGen/ScheduleDAGInstrs.cpp

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