Sanjay Patel e053621071 [ValueTracking] simplify logic in ComputeNumSignBits (NFCI) ...

This was noted in http://reviews.llvm.org/D21610 . The previous code
predated the use of APInt ( http://reviews.llvm.org/rL47654 ), so it
had to account for the fixed width of uint64_t.

Now that we're using the variable width APInt, we can remove some
complexity.

llvm-svn: 273584

2016-06-23 17:41:59 +00:00

158 KiB

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