[PATCH] D50704: [Inline-cost] Teach cost function to account for accumulative code-size growth

[Diogo N. Sampaio via Phabricator via llvm-commits]

dnsampaio created this revision.
dnsampaio added reviewers: chandlerc, greened, SjoerdMeijer.
Herald added subscribers: llvm-commits, haicheng, eraman.

The current Inline-cost function does not take into account the accumulative code size growth of inlining calls to the same function multiple times.
If N function calls to a function are inlined, each increasing size by I, the accumulative code growth is N * I.
If the callee has local linkage, then we give it a bonus, as the function can be eliminated by the number of instruction in the function.


Repository:
  rL LLVM

https://reviews.llvm.org/D50704

Files:
  include/llvm/Analysis/InlineCost.h
  lib/Analysis/InlineCost.cpp
  test/Transforms/Inline/InlineGrowthCost.ll

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