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| author | Jakob Stoklund Olesen <stoklund@2pi.dk> | 2011-09-15 04:37:18 +0000 |
|---|---|---|
| committer | Jakob Stoklund Olesen <stoklund@2pi.dk> | 2011-09-15 04:37:18 +0000 |
| commit | 573a32d4870ff4af7f59fc020caf07fb6ef61e37 (patch) | |
| tree | 42b2ee82d10f0eb07faec9f9de5e32282a141ec9 /include/llvm/CodeGen/LiveInterval.h | |
| parent | f59c532cfd2743b386b729244d3cb752ac55ab0b (diff) | |
Leave hasPHIKill flags alone in LiveInterval::RenumberValues.
It is conservatively correct to keep the hasPHIKill flags, even after
deleting PHI-defs.
The calculation can be very expensive after taildup has created a
quadratic number of indirectbr edges in the CFG, and the hasPHIKill flag
isn't used for anything after RenumberValues().
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139780 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'include/llvm/CodeGen/LiveInterval.h')
| -rw-r--r-- | include/llvm/CodeGen/LiveInterval.h | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/include/llvm/CodeGen/LiveInterval.h b/include/llvm/CodeGen/LiveInterval.h index 0daaf82fe1..2df2edd210 100644 --- a/include/llvm/CodeGen/LiveInterval.h +++ b/include/llvm/CodeGen/LiveInterval.h @@ -313,7 +313,6 @@ namespace llvm { /// RenumberValues - Renumber all values in order of appearance and remove /// unused values. - /// Recalculate phi-kill flags in case any phi-def values were removed. void RenumberValues(LiveIntervals &lis); /// isOnlyLROfValNo - Return true if the specified live range is the only |