Move LiveUnionArray into LiveIntervalUnion.h
It is useful outside RegAllocBase.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158041 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/RegAllocBase.h b/lib/CodeGen/RegAllocBase.h
index 072fe2b..d55484f 100644
--- a/lib/CodeGen/RegAllocBase.h
+++ b/lib/CodeGen/RegAllocBase.h
@@ -62,27 +62,7 @@
// registers may have changed.
unsigned UserTag;
- // Array of LiveIntervalUnions indexed by physical register.
- class LiveUnionArray {
- unsigned NumRegs;
- LiveIntervalUnion *Array;
- public:
- LiveUnionArray(): NumRegs(0), Array(0) {}
- ~LiveUnionArray() { clear(); }
-
- unsigned numRegs() const { return NumRegs; }
-
- void init(LiveIntervalUnion::Allocator &, unsigned NRegs);
-
- void clear();
-
- LiveIntervalUnion& operator[](unsigned PhysReg) {
- assert(PhysReg < NumRegs && "physReg out of bounds");
- return Array[PhysReg];
- }
- };
-
- LiveUnionArray PhysReg2LiveUnion;
+ LiveIntervalUnion::Array PhysReg2LiveUnion;
// Current queries, one per physreg. They must be reinitialized each time we
// query on a new live virtual register.