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Author SHA1 Message Date
Nico Weber 755cd760cd Revert r275401, it caused PR28551. 
llvm-svn: 275420
 2016-07-14 14:41:25 +00:00
Sebastian Pop 63847d04e7 code hoisting pass based on GVN 
This pass hoists duplicated computations in the program. The primary goal of
gvn-hoist is to reduce the size of functions before inline heuristics to reduce
the total cost of function inlining.

Pass written by Sebastian Pop, Aditya Kumar, Xiaoyu Hu, and Brian Rzycki.
Important algorithmic contributions by Daniel Berlin under the form of reviews.

Differential Revision: http://reviews.llvm.org/D19338

llvm-svn: 275401
 2016-07-14 12:18:53 +00:00
Duncan P. N. Exon Smith 9d1f156418 Revert "code hoisting pass based on GVN" 
This reverts commit r274305, since it breaks self-hosting:
  http://lab.llvm.org:8080/green/job/clang-stage1-configure-RA_build/22349/
  http://lab.llvm.org:8011/builders/clang-x86_64-linux-selfhost-modules/builds/17232

Note that the blamelist on lab.llvm.org:8011 is incorrect.  The previous
build was r274299, but somehow r274305 wasn't included in the blamelist:
  http://lab.llvm.org:8011/builders/clang-x86_64-linux-selfhost-modules

llvm-svn: 274320
 2016-07-01 01:51:40 +00:00
Sebastian Pop 5c5798c57c code hoisting pass based on GVN 
This pass hoists duplicated computations in the program. The primary goal of
gvn-hoist is to reduce the size of functions before inline heuristics to reduce
the total cost of function inlining.

Pass written by Sebastian Pop, Aditya Kumar, Xiaoyu Hu, and Brian Rzycki.
Important algorithmic contributions by Daniel Berlin under the form of reviews.

Differential Revision: http://reviews.llvm.org/D19338

llvm-svn: 274305
 2016-07-01 00:24:31 +00:00