diff options
Diffstat (limited to 'llvm/lib/CodeGen')
| -rw-r--r-- | llvm/lib/CodeGen/RegAllocGreedy.cpp | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/llvm/lib/CodeGen/RegAllocGreedy.cpp b/llvm/lib/CodeGen/RegAllocGreedy.cpp index 64da8485389..f244028534f 100644 --- a/llvm/lib/CodeGen/RegAllocGreedy.cpp +++ b/llvm/lib/CodeGen/RegAllocGreedy.cpp @@ -1183,7 +1183,10 @@ bool RAGreedy::addSplitConstraints(InterferenceCache::Cursor Intf, BC.Number = BI.MBB->getNumber(); Intf.moveToBlock(BC.Number); BC.Entry = BI.LiveIn ? SpillPlacement::PrefReg : SpillPlacement::DontCare; - BC.Exit = BI.LiveOut ? SpillPlacement::PrefReg : SpillPlacement::DontCare; + BC.Exit = (BI.LiveOut && + !LIS->getInstructionFromIndex(BI.LastInstr)->isImplicitDef()) + ? SpillPlacement::PrefReg + : SpillPlacement::DontCare; BC.ChangesValue = BI.FirstDef.isValid(); if (!Intf.hasInterference()) |
