Fix an off-by-one error. Also make the code a little more explicit in what it
authorChad Rosier <mcrosier@apple.com>
Fri, 28 Jun 2013 18:57:01 +0000 (18:57 +0000)
committerChad Rosier <mcrosier@apple.com>
Fri, 28 Jun 2013 18:57:01 +0000 (18:57 +0000)
commitee740c4d88cca4f9056ca4370cb90209ed4ee8db
tree32f0afc0416521a7ca70a064d2f504538d3cfcee
parenta67de2b1bc0e6c91a73b5a0bd66d1f733086d513
Fix an off-by-one error.  Also make the code a little more explicit in what it
is trying to do.

llvm-svn: 185191
llvm/lib/Target/X86/X86FloatingPoint.cpp