LiveRangeEdit: Check for completely empy subranges after removing ValNos.
authorMatthias Braun <matze@braunis.de>
Wed, 24 Dec 2014 02:11:46 +0000 (02:11 +0000)
committerMatthias Braun <matze@braunis.de>
Wed, 24 Dec 2014 02:11:46 +0000 (02:11 +0000)
commita2fd5b5fd0a60854e92d1d202d48d37fb16cef69
tree05bdab2090623b075eedf0300aaedae9052e6b34
parent94daeceeacb0f67a7049ff6cd6c3a9ec793e4720
LiveRangeEdit: Check for completely empy subranges after removing ValNos.

Completely empty subranges are not allowed and must be removed when
subreg liveness is enabled.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@224804 91177308-0d34-0410-b5e6-96231b3b80d8
lib/CodeGen/LiveRangeEdit.cpp