[PATCH] D29424: [PPC] WIP - Add statistics for mem* fucntions

[Sean Fertile via Phabricator via llvm-commits]

sfertile created this revision.

Add Statistics for memset/memcpy/memmove/memcmp functions.

Counts the number of times one of these functions is lowered, and if the call has a know size at compile time. If the Call has a know size then we bucket the size into small/med/large.

For the intrinsics, the alignment of the arguments is checked and recorded if they have

1. worst-case alignment
2. ideal alignment

Finally I add an option that allows tuning the maximum number of memory-operatons done in a n expansion of memcpy/memset/memmove.


Repository:
  rL LLVM

https://reviews.llvm.org/D29424

Files:
  lib/CodeGen/SelectionDAG/SelectionDAG.cpp
  lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
  lib/Target/PowerPC/PPCISelLowering.cpp

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