Jakob Stoklund Olesen fc6374439e Add VirtRegMap::hasKnownPreference().
Virtual registers with a known preferred register are prioritized by
RAGreedy. This function makes the condition explicit without depending
on getRegAllocPref().

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169179 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-03 23:23:50 +00:00
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2012-12-03 22:47:12 +00:00
2012-11-27 01:40:36 +00:00