diff options
| author | Jakob Stoklund Olesen <stoklund@2pi.dk> | 2011-03-03 03:41:29 +0000 |
|---|---|---|
| committer | Jakob Stoklund Olesen <stoklund@2pi.dk> | 2011-03-03 03:41:29 +0000 |
| commit | 36d61863bc83bd2301e0224adc560098b35ec0dc (patch) | |
| tree | f263712c35c5e76d30493c5b80e9bfe9175d2099 /lib/CodeGen/SplitKit.h | |
| parent | f27a40a9717c019fd07990483fb475b544bc895e (diff) | |
| download | llvm-36d61863bc83bd2301e0224adc560098b35ec0dc.tar.gz llvm-36d61863bc83bd2301e0224adc560098b35ec0dc.tar.bz2 llvm-36d61863bc83bd2301e0224adc560098b35ec0dc.tar.xz | |
Cache basic block bounds instead of asking SlotIndexes::getMBBRange all the time.
This speeds up the greedy register allocator by 15%.
DenseMap is not as fast as one might hope.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126921 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/CodeGen/SplitKit.h')
| -rw-r--r-- | lib/CodeGen/SplitKit.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/lib/CodeGen/SplitKit.h b/lib/CodeGen/SplitKit.h index 28c5c602d7..240f1fecff 100644 --- a/lib/CodeGen/SplitKit.h +++ b/lib/CodeGen/SplitKit.h @@ -71,6 +71,8 @@ public: /// struct BlockInfo { MachineBasicBlock *MBB; + SlotIndex Start; ///< Beginining of block. + SlotIndex Stop; ///< End of block. SlotIndex FirstUse; ///< First instr using current reg. SlotIndex LastUse; ///< Last instr using current reg. SlotIndex Kill; ///< Interval end point inside block. |