[PATCH] D17532: Add prefix based function layout when profile is available.

[Dehao Chen via llvm-commits]

danielcdh created this revision.
danielcdh added a reviewer: davidxl.
danielcdh added a subscriber: llvm-commits.

If a function is hot, put it in text.hot section.

http://reviews.llvm.org/D17532

Files:
  include/llvm/ProfileData/ProfileCommon.h
  lib/CodeGen/TargetLoweringObjectFileImpl.cpp
  lib/ProfileData/ProfileSummary.cpp
  test/CodeGen/X86/partition-sections.ll

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