[PATCH] D15219: [Support] Change SaturatingAdd()/SaturatingMultiply() to use pointer for returning overflow state

[Nathan Slingerland via llvm-commits]

slingn created this revision.
slingn added reviewers: davidxl, silvas.
slingn added a subscriber: llvm-commits.

Improve SaturatingAdd()/SaturatingMultiply() to use bool * to optionally return overflow result.
This should make it clearer that the value is returned at callsites and reduces the size of the implementation.

http://reviews.llvm.org/D15219

Files:
  include/llvm/ProfileData/InstrProf.h
  include/llvm/Support/MathExtras.h
  lib/ProfileData/InstrProfWriter.cpp
  unittests/Support/MathExtrasTest.cpp

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