| commit | f1b05f2b0ef48cb80b064e2f792b38c626822fc0 | [log] [tgz] |
|---|---|---|
| author | Jakob Stoklund Olesen <stoklund@2pi.dk> | Thu Aug 12 17:07:14 2010 +0000 |
| committer | Jakob Stoklund Olesen <stoklund@2pi.dk> | Thu Aug 12 17:07:14 2010 +0000 |
| tree | 0964880a5f446b5f926bd30ac2257ddd68b8ec98 | |
| parent | 727356fc7d6898f1628f2a64930fe46b3540050d [diff] |
Implement single block splitting. Before spilling a live range, we split it into a separate range for each basic block where it is used. That way we only get one reload per basic block if the new smaller ranges can allocate to a register. This type of splitting is already present in the standard spiller. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110934 91177308-0d34-0410-b5e6-96231b3b80d8