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| author | Matthias Braun <matze@braunis.de> | 2014-12-10 01:12:10 +0000 |
|---|---|---|
| committer | Matthias Braun <matze@braunis.de> | 2014-12-10 01:12:10 +0000 |
| commit | 3f1d8fdd33af8241bbd0ee0a2fa9d0d31eccd787 (patch) | |
| tree | 67ffd6bed551e905735922c09ba298459cfd092c /llvm/lib/CodeGen/LiveIntervalAnalysis.cpp | |
| parent | e62c2070927f1304d9bfa17fb5084b01acf5e68b (diff) | |
| download | bcm5719-llvm-3f1d8fdd33af8241bbd0ee0a2fa9d0d31eccd787.tar.gz bcm5719-llvm-3f1d8fdd33af8241bbd0ee0a2fa9d0d31eccd787.zip | |
LiveInterval: Add support to track liveness of subregisters.
This code adds the required data structures. Algorithms to compute it follow.
llvm-svn: 223877
Diffstat (limited to 'llvm/lib/CodeGen/LiveIntervalAnalysis.cpp')
| -rw-r--r-- | llvm/lib/CodeGen/LiveIntervalAnalysis.cpp | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp b/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp index 1742e63b0df..d07d3cc3a8a 100644 --- a/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp +++ b/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp @@ -767,6 +767,8 @@ public: continue; if (TargetRegisterInfo::isVirtualRegister(Reg)) { LiveInterval &LI = LIS.getInterval(Reg); + // TODO: handle subranges instead of dropping them + LI.clearSubRanges(); updateRange(LI, Reg); continue; } |
