Move PHINodesToUpdate out of SelectionDAGBuilder and into

FunctionLoweringInfo, as it isn't SelectionDAG-specific. This isn't
completely natural, as PHI node state is not per-function but rather
per-basic-block, however there's currently no other convenient
per-basic-block state to group it with.

llvm-svn: 102109

1 files changed, 7 insertions, 0 deletions

diff --git a/llvm/lib/CodeGen/SelectionDAG/FunctionLoweringInfo.h b/llvm/lib/CodeGen/SelectionDAG/FunctionLoweringInfo.h
index 333fe228d5f..c855db8c7b7 100644
--- a/llvm/lib/CodeGen/SelectionDAG/FunctionLoweringInfo.h
+++ b/llvm/lib/CodeGen/SelectionDAG/FunctionLoweringInfo.h
@@ -35,6 +35,7 @@ class CallInst;
 class Function;
 class GlobalVariable;
 class Instruction;
+class MachineInstr;
 class MachineBasicBlock;
 class MachineFunction;
 class MachineModuleInfo;
@@ -89,6 +90,12 @@ public:
   /// register number offset by 'FirstVirtualRegister'.
   std::vector<LiveOutInfo> LiveOutRegInfo;
 
+  /// PHINodesToUpdate - A list of phi instructions whose operand list will
+  /// be updated after processing the current basic block.
+  /// TODO: This isn't per-function state, it's per-basic-block state. But
+  /// there's no other convenient place for it to live right now.
+  std::vector<std::pair<MachineInstr*, unsigned> > PHINodesToUpdate;
+
   explicit FunctionLoweringInfo(const TargetLowering &TLI);
 
   /// set - Initialize this FunctionLoweringInfo with the given Function