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| author | Jakob Stoklund Olesen <stoklund@2pi.dk> | 2012-06-20 18:00:57 +0000 |
|---|---|---|
| committer | Jakob Stoklund Olesen <stoklund@2pi.dk> | 2012-06-20 18:00:57 +0000 |
| commit | 7824152557cfe3a366963f504b2b956f853ebc3a (patch) | |
| tree | 0fadd2f553285f1dececdda3a7c47bc3ddfd8aff /include/llvm/CodeGen/LiveIntervalAnalysis.h | |
| parent | b47f3ea22461b2d877d4a3246d54bdeab4fcfaa3 (diff) | |
| download | llvm-7824152557cfe3a366963f504b2b956f853ebc3a.tar.gz llvm-7824152557cfe3a366963f504b2b956f853ebc3a.tar.bz2 llvm-7824152557cfe3a366963f504b2b956f853ebc3a.tar.xz | |
Only update regunit live ranges that have been precomputed.
Regunit live ranges are computed on demand, so when mi-sched calls
handleMove, some regunits may not have live ranges yet.
That makes updating them easier: Just skip the non-existing ranges. They
will be computed correctly from the rescheduled machine code when they
are needed.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158831 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'include/llvm/CodeGen/LiveIntervalAnalysis.h')
| -rw-r--r-- | include/llvm/CodeGen/LiveIntervalAnalysis.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/include/llvm/CodeGen/LiveIntervalAnalysis.h b/include/llvm/CodeGen/LiveIntervalAnalysis.h index bd3604c429..bb547c3519 100644 --- a/include/llvm/CodeGen/LiveIntervalAnalysis.h +++ b/include/llvm/CodeGen/LiveIntervalAnalysis.h @@ -347,6 +347,12 @@ namespace llvm { return *LI; } + /// getCachedRegUnit - Return the live range for Unit if it has already + /// been computed, or NULL if it hasn't been computed yet. + LiveInterval *getCachedRegUnit(unsigned Unit) { + return RegUnitIntervals[Unit]; + } + /// trackingRegUnits - Does LiveIntervals curently track register units? /// This function will be removed when regunit tracking is permanently /// enabled. |