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| author | Matthias Braun <matze@braunis.de> | 2013-10-10 21:29:02 +0000 |
|---|---|---|
| committer | Matthias Braun <matze@braunis.de> | 2013-10-10 21:29:02 +0000 |
| commit | 4f3b5e8c9232e43d1291aab8db5f5698d7ee0ea4 (patch) | |
| tree | 8476f80c09b3a75334a62dc0ee6b7be53f8b5cdc /lib/CodeGen/LiveRegMatrix.cpp | |
| parent | e25dde550baec1f79caf2fc06edd74e7ae6ffa33 (diff) | |
| download | llvm-4f3b5e8c9232e43d1291aab8db5f5698d7ee0ea4.tar.gz llvm-4f3b5e8c9232e43d1291aab8db5f5698d7ee0ea4.tar.bz2 llvm-4f3b5e8c9232e43d1291aab8db5f5698d7ee0ea4.tar.xz | |
Represent RegUnit liveness with LiveRange instance
Previously LiveInterval has been used, but having a spill weight and
register number is unnecessary for a register unit.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@192397 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/CodeGen/LiveRegMatrix.cpp')
| -rw-r--r-- | lib/CodeGen/LiveRegMatrix.cpp | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/lib/CodeGen/LiveRegMatrix.cpp b/lib/CodeGen/LiveRegMatrix.cpp index 0ef069f478..1d801ac914 100644 --- a/lib/CodeGen/LiveRegMatrix.cpp +++ b/lib/CodeGen/LiveRegMatrix.cpp @@ -119,9 +119,11 @@ bool LiveRegMatrix::checkRegUnitInterference(LiveInterval &VirtReg, if (VirtReg.empty()) return false; CoalescerPair CP(VirtReg.reg, PhysReg, *TRI); - for (MCRegUnitIterator Units(PhysReg, TRI); Units.isValid(); ++Units) - if (VirtReg.overlaps(LIS->getRegUnit(*Units), CP, *LIS->getSlotIndexes())) + for (MCRegUnitIterator Units(PhysReg, TRI); Units.isValid(); ++Units) { + const LiveRange &UnitRange = LIS->getRegUnit(*Units); + if (VirtReg.overlaps(UnitRange, CP, *LIS->getSlotIndexes())) return true; + } return false; } |