[PATCH] D33618: [PartialInlining] Reduce function outlining overhead

[David Li via Phabricator via llvm-commits]

davidxl created this revision.
Herald added a subscriber: eraman.

Allocas whose life range is fully contained inside the outlined region should be pushed to the outlined function.  This not only reduces the number of live-in variables to the outline function (thus reduced number of parameters), but can also avoid 'escaping' the address of the locals (if not shrink wrapped in).


https://reviews.llvm.org/D33618

Files:
  include/llvm/Transforms/Utils/CodeExtractor.h
  lib/Transforms/Utils/CodeExtractor.cpp
  test/Transforms/CodeExtractor/PartialInlineAlloca.ll
  test/Transforms/CodeExtractor/PartialInlineAlloca2.ll
  test/Transforms/CodeExtractor/PartialInlineAlloca4.ll
  test/Transforms/CodeExtractor/PartialInlineAlloca5.ll

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