Add a fast path for x - x.
authorDan Gohman <gohman@apple.com>
Tue, 20 Jul 2010 16:53:00 +0000 (16:53 +0000)
committerDan Gohman <gohman@apple.com>
Tue, 20 Jul 2010 16:53:00 +0000 (16:53 +0000)
commiteb4152c192ad226a1dee825f1433277e1851edbc
tree619be4a0052cd661fcfc1126487fd40be5773f90
parent08993c03abed359171d12b50ab38da0ac331cfb7
Add a fast path for x - x.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108855 91177308-0d34-0410-b5e6-96231b3b80d8
lib/Analysis/ScalarEvolution.cpp