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| author | Jakob Stoklund Olesen <stoklund@2pi.dk> | 2010-08-12 17:07:14 +0000 |
|---|---|---|
| committer | Jakob Stoklund Olesen <stoklund@2pi.dk> | 2010-08-12 17:07:14 +0000 |
| commit | f1b05f2b0ef48cb80b064e2f792b38c626822fc0 (patch) | |
| tree | 0964880a5f446b5f926bd30ac2257ddd68b8ec98 /lib/CodeGen/LiveInterval.cpp | |
| 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
Diffstat (limited to 'lib/CodeGen/LiveInterval.cpp')
0 files changed, 0 insertions, 0 deletions