Make DenseMap's insert return a pair, to more closely resemble std::map.

llvm-svn: 53177

2 files changed, 14 insertions, 9 deletions

diff --git a/llvm/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp b/llvm/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp
index 1fa1f3fa2a3..5cf637e0468 100644
--- a/llvm/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp
+++ b/llvm/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp
@@ -115,7 +115,7 @@ class VISIBILITY_HIDDEN SelectionDAGLegalize {
       LegalizedNodes.insert(std::make_pair(To, To));
   }
   void AddPromotedOperand(SDOperand From, SDOperand To) {
-    bool isNew = PromotedNodes.insert(std::make_pair(From, To));
+    bool isNew = PromotedNodes.insert(std::make_pair(From, To)).second;
     assert(isNew && "Got into the map somehow?");
     // If someone requests legalization of the new node, return itself.
     LegalizedNodes.insert(std::make_pair(To, To));
@@ -6734,7 +6734,8 @@ void SelectionDAGLegalize::ExpandOp(SDOperand Op, SDOperand &Lo, SDOperand &Hi){
   }
 
   // Remember in a map if the values will be reused later.
-  bool isNew = ExpandedNodes.insert(std::make_pair(Op, std::make_pair(Lo, Hi)));
+  bool isNew =
+    ExpandedNodes.insert(std::make_pair(Op, std::make_pair(Lo, Hi))).second;
   assert(isNew && "Value already expanded?!?");
 }
 
diff --git a/llvm/lib/CodeGen/SelectionDAG/ScheduleDAG.cpp b/llvm/lib/CodeGen/SelectionDAG/ScheduleDAG.cpp
index f41e14aa7e1..10a5e8c9df3 100644
--- a/llvm/lib/CodeGen/SelectionDAG/ScheduleDAG.cpp
+++ b/llvm/lib/CodeGen/SelectionDAG/ScheduleDAG.cpp
@@ -413,9 +413,10 @@ void ScheduleDAG::EmitCopyFromReg(SDNode *Node, unsigned ResNo,
   unsigned VRBase = 0;
   if (TargetRegisterInfo::isVirtualRegister(SrcReg)) {
     // Just use the input register directly!
+    SDOperand Op(Node, ResNo);
     if (IsClone)
-      VRBaseMap.erase(SDOperand(Node, ResNo));
-    bool isNew = VRBaseMap.insert(std::make_pair(SDOperand(Node,ResNo),SrcReg));
+      VRBaseMap.erase(Op);
+    bool isNew = VRBaseMap.insert(std::make_pair(Op, SrcReg)).second;
     isNew = isNew; // Silence compiler warning.
     assert(isNew && "Node emitted out of order - early");
     return;
@@ -472,9 +473,10 @@ void ScheduleDAG::EmitCopyFromReg(SDNode *Node, unsigned ResNo,
     TII->copyRegToReg(*BB, BB->end(), VRBase, SrcReg, DstRC, SrcRC);
   }
 
+  SDOperand Op(Node, ResNo);
   if (IsClone)
-    VRBaseMap.erase(SDOperand(Node, ResNo));
-  bool isNew = VRBaseMap.insert(std::make_pair(SDOperand(Node,ResNo), VRBase));
+    VRBaseMap.erase(Op);
+  bool isNew = VRBaseMap.insert(std::make_pair(Op, VRBase)).second;
   isNew = isNew; // Silence compiler warning.
   assert(isNew && "Node emitted out of order - early");
 }
@@ -532,7 +534,8 @@ void ScheduleDAG::CreateVirtualRegisters(SDNode *Node, MachineInstr *MI,
       MI->addOperand(MachineOperand::CreateReg(VRBase, true));
     }
 
-    bool isNew = VRBaseMap.insert(std::make_pair(SDOperand(Node,i), VRBase));
+    SDOperand Op(Node, i);
+    bool isNew = VRBaseMap.insert(std::make_pair(Op, VRBase)).second;
     isNew = isNew; // Silence compiler warning.
     assert(isNew && "Node emitted out of order - early");
   }
@@ -786,7 +789,8 @@ void ScheduleDAG::EmitSubregNode(SDNode *Node,
   } else
     assert(0 && "Node is not insert_subreg, extract_subreg, or subreg_to_reg");
      
-  bool isNew = VRBaseMap.insert(std::make_pair(SDOperand(Node,0), VRBase));
+  SDOperand Op(Node, 0);
+  bool isNew = VRBaseMap.insert(std::make_pair(Op, VRBase)).second;
   isNew = isNew; // Silence compiler warning.
   assert(isNew && "Node emitted out of order - early");
 }
@@ -992,7 +996,7 @@ void ScheduleDAG::EmitCrossRCCopy(SUnit *SU,
       // Copy from physical register.
       assert(I->Reg && "Unknown physical register!");
       unsigned VRBase = MRI.createVirtualRegister(SU->CopyDstRC);
-      bool isNew = VRBaseMap.insert(std::make_pair(SU, VRBase));
+      bool isNew = VRBaseMap.insert(std::make_pair(SU, VRBase)).second;
       isNew = isNew; // Silence compiler warning.
       assert(isNew && "Node emitted out of order - early");
       TII->copyRegToReg(*BB, BB->end(), VRBase, I->Reg,