Move getRegPressureLimit() from TargetLoweringInfo to TargetRegisterInfo.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127175 91177308-0d34-0410-b5e6-96231b3b80d8

include/llvm/Target/TargetLowering.h

@@ -190,14 +190,6 @@ public:
     return RepRegClassCostForVT[VT.getSimpleVT().SimpleTy];
   }
 
-  /// getRegPressureLimit - Return the register pressure "high water mark" for
-  /// the specific register class. The scheduler is in high register pressure
-  /// mode (for the specific register class) if it goes over the limit.
-  virtual unsigned getRegPressureLimit(const TargetRegisterClass *RC,
-                                       MachineFunction &MF) const {
-    return 0;
-  }
-
   /// isTypeLegal - Return true if the target has native support for the
   /// specified value type.  This means that it has a register that directly
   /// holds it without promotions or expansions.

include/llvm/Target/TargetRegisterInfo.h

@@ -595,6 +595,14 @@ public:
     return NULL;
   }
 
+  /// getRegPressureLimit - Return the register pressure "high water mark" for
+  /// the specific register class. The scheduler is in high register pressure
+  /// mode (for the specific register class) if it goes over the limit.
+  virtual unsigned getRegPressureLimit(const TargetRegisterClass *RC,
+                                       MachineFunction &MF) const {
+    return 0;
+  }
+
   /// getAllocationOrder - Returns the register allocation order for a specified
   /// register class in the form of a pair of TargetRegisterClass iterators.
   virtual std::pair<TargetRegisterClass::iterator,TargetRegisterClass::iterator>