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| author | Jakob Stoklund Olesen <stoklund@2pi.dk> | 2011-03-17 20:37:07 +0000 |
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| committer | Jakob Stoklund Olesen <stoklund@2pi.dk> | 2011-03-17 20:37:07 +0000 |
| commit | 6a3dbd3b25bbc99bd1a233d6a74ddea3493ba6ac (patch) | |
| tree | 512a2f340823e0cb054136093b13d679f6200e6b /lib/Support/APInt.cpp | |
| parent | c74513d1b6e2f6c91533a23ebbdc47a6f1dfcc0c (diff) | |
| download | llvm-6a3dbd3b25bbc99bd1a233d6a74ddea3493ba6ac.tar.gz llvm-6a3dbd3b25bbc99bd1a233d6a74ddea3493ba6ac.tar.bz2 llvm-6a3dbd3b25bbc99bd1a233d6a74ddea3493ba6ac.tar.xz | |
Dead code elimination may separate the live interval into multiple connected components.
I have convinced myself that it can only happen when a phi value dies. When it
happens, allocate new virtual registers for the components.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127827 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Support/APInt.cpp')
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