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[SelectionDAG] Make SelectionDAG aware of the known bits in USUBO and SSUBO and SUBC.
authorAmaury Sechet <deadalnix@gmail.com>
Fri, 10 Mar 2017 17:26:44 +0000 (17:26 +0000)
committerAmaury Sechet <deadalnix@gmail.com>
Fri, 10 Mar 2017 17:26:44 +0000 (17:26 +0000)
commit5436744eb43959ea80a4c6c869d7886371854d89
treeac72627b999d95997d4172565fe3b30702e2134ctree | snapshot
parentf4e8e993d938ba1fee66a291c5c953dbc08aa08ecommit | diff
[SelectionDAG] Make SelectionDAG aware of the known bits in USUBO and SSUBO and SUBC.

Summary:
Depends on D30379

This improves the state of things for the sub class of operation.

Reviewers: jyknight, nemanjai, mkuper, spatel, RKSimon, zvi, bkramer

Subscribers: llvm-commits

Differential Revision: https://reviews.llvm.org/D30436

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@297482 91177308-0d34-0410-b5e6-96231b3b80d8
lib/CodeGen/SelectionDAG/SelectionDAG.cpp diff | blob | history
test/CodeGen/X86/known-bits.ll diff | blob | history
external/llvm
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