Kazu Hirata 51d3829d8f [ThinLTO] Shrink FunctionSummary by 8 bytes (#107706) ...

During the ThinLTO indexing step for one of our large applications, we
create 4 million instances of FunctionSummary.

Changing:

  std::vector<EdgeTy> CallGraphEdgeList;

to:

  SmallVector<EdgeTy, 0> CallGraphEdgeList;

in FunctionSummary reduces the size of each instance by 8 bytes.  The
rest of the patch makes the same change to other places so that the
types stay compatible across function boundaries.

2024-09-07 11:21:20 -07:00

50 KiB

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