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Commit 3edda87c authored by Craig Topper's avatar Craig Topper
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[InstCombine] Move the call to isSignBitCheck into getDemandedBitsLHSMask... 

[InstCombine] Move the call to isSignBitCheck into getDemandedBitsLHSMask instead of calling it outside and passing its result through a flag. NFCI

The result of the isSignBitCheck isn't used anywhere else and this allows us to share the m_APInt call in the likely case that it isn't a sign bit check.

llvm-svn: 314018
parent 5b35b687
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