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Diffstat (limited to 'lib/CodeGen/SplitKit.h')
| -rw-r--r-- | lib/CodeGen/SplitKit.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/lib/CodeGen/SplitKit.h b/lib/CodeGen/SplitKit.h index cccaace6f9..2ae760a58d 100644 --- a/lib/CodeGen/SplitKit.h +++ b/lib/CodeGen/SplitKit.h @@ -150,6 +150,11 @@ public: /// getThroughBlocks - Return the set of through blocks. const BitVector &getThroughBlocks() const { return ThroughBlocks; } + /// countLiveBlocks - Return the number of blocks where li is live. + /// This is guaranteed to return the same number as getNumThroughBlocks() + + /// getUseBlocks().size() after calling analyze(li). + unsigned countLiveBlocks(const LiveInterval *li) const; + typedef SmallPtrSet<const MachineBasicBlock*, 16> BlockPtrSet; /// getMultiUseBlocks - Add basic blocks to Blocks that may benefit from |