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Commit 73ba1c84 authored by Craig Topper's avatar Craig Topper
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[InstCombine][InstSimplify] Use APInt::isNullValue/isOneValue to reduce... 

[InstCombine][InstSimplify] Use APInt::isNullValue/isOneValue to reduce compiled code for comparing APInts with 0 and 1. NFC

These methods are specifically optimized to only counting leading zeros without an additional uint64_t compare.

llvm-svn: 304876
parent 29c282ea
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