Fixes to r153903. Added missing explanation of behaviour when the VirtRegMap is...
authorPete Cooper <peter_cooper@apple.com>
Tue, 3 Apr 2012 00:28:46 +0000 (00:28 +0000)
committerPete Cooper <peter_cooper@apple.com>
Tue, 3 Apr 2012 00:28:46 +0000 (00:28 +0000)
commit2e267ae7b8caf7192a3793eb3b78937ff83f794d
treee283338b36954c69f967b75ebbcf732b65e17c86
parent1adc215ddcadcfaaa07a8e93f48a8f62c4561afe
Fixes to r153903.  Added missing explanation of behaviour when the VirtRegMap is NULL.  Also changed it in this case to just avoid updating the map, but live ranges or intervals will still get updated and created

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@153914 91177308-0d34-0410-b5e6-96231b3b80d8
include/llvm/CodeGen/LiveRangeEdit.h
lib/CodeGen/LiveRangeEdit.cpp