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[SelectionDAG] computeKnownBits - simplified knownbits sign extension. NFCI.
authorSimon Pilgrim <llvm-dev@redking.me.uk>
Tue, 13 Dec 2016 13:36:27 +0000 (13:36 +0000)
committerSimon Pilgrim <llvm-dev@redking.me.uk>
Tue, 13 Dec 2016 13:36:27 +0000 (13:36 +0000)
commit7e389a2c48d643188b99a7e4a62e4d18bfe094d2
tree8d8640ace11a6aa954a27d9188fb940b786422b2tree | snapshot
parent2762dbad7008c881e0417ac963347fd68658aaf9commit | diff
[SelectionDAG] computeKnownBits - simplified knownbits sign extension. NFCI.

We don't need to extract+test the sign bit of the known ones/zeros, we can use sext which will handle all of this.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@289534 91177308-0d34-0410-b5e6-96231b3b80d8
lib/CodeGen/SelectionDAG/SelectionDAG.cpp diff | blob | history
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