[ValueTracking] Simplify KnownBits construction
authorJay Foad <jay.foad@amd.com>
Thu, 9 Apr 2020 07:52:45 +0000 (08:52 +0100)
committerJay Foad <jay.foad@amd.com>
Thu, 9 Apr 2020 08:27:22 +0000 (09:27 +0100)
commit94cc9eccf65f2282ae780c3e98d19c5b3b6b9069
tree4cf1d519cfa3f542bbb482b38585b6b8133165b9
parent8f66f25f52f9b4089d216a33283acdb87ea3c250
[ValueTracking] Simplify KnownBits construction

Use the simpler BitWidth constructor instead of the copy constructor to
make it clear when we don't actually need to copy an existing KnownBits
value. Split out from D74539. NFC.
llvm/lib/Analysis/ValueTracking.cpp