From: Vikram S. Adve <vadve@cs.uiuc.edu>
Date: Mon, 16 Sep 2002 15:58:54 +0000 (+0000)
Subject: Add method MachineOperand::hasAllocatedReg().
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=504fc5b7b5a9ffa9f82e95e7212015575030c7a7;p=oota-llvm.git

Add method MachineOperand::hasAllocatedReg().


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3747 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/include/llvm/CodeGen/MachineInstr.h b/include/llvm/CodeGen/MachineInstr.h
index 935504894a0..a2190d829d3 100644
--- a/include/llvm/CodeGen/MachineInstr.h
+++ b/include/llvm/CodeGen/MachineInstr.h
@@ -136,14 +136,21 @@ public:
   inline bool           opLoBits64      () const {
     return flags & LOFLAG64;
   }
-  
-  // used to get the reg number if when one is allocated (must be
-  // called only after reg alloc)
+
+  // used to check if a machine register has been allocated to this operand
+  inline bool   hasAllocatedReg() const {
+    return (regNum >= 0 &&
+            (opType == MO_VirtualRegister || opType == MO_CCRegister || 
+             opType == MO_MachineRegister));
+  }
+
+  // used to get the reg number if when one is allocated
   inline int  getAllocatedRegNum() const {
     assert(opType == MO_VirtualRegister || opType == MO_CCRegister || 
 	   opType == MO_MachineRegister);
     return regNum;
   }
+
   
 public:
   friend std::ostream& operator<<(std::ostream& os, const MachineOperand& mop);