Split out the shift code from visitBinary.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24412 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp b/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
index 53d97e7b7c29af8bdc95ab904a31d7b27d31f257..5f488a4e2673dccd288e71460be0f2c64e0b6953 100644 (file)
--- a/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
+++ b/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
@@ -347,7 +347,8 @@ public:
   void visitUnwind(UnwindInst &I) { assert(0 && "TODO"); }
 
   //
-  void visitBinary(User &I, unsigned Opcode, bool isShift = false);
+  void visitBinary(User &I, unsigned Opcode);
+  void visitShift(User &I, unsigned Opcode);
   void visitAdd(User &I) {
     visitBinary(I, I.getType()->isFloatingPoint() ? ISD::FADD : ISD::ADD);
   }
@@ -380,9 +381,9 @@ public:
   void visitAnd(User &I) { visitBinary(I, ISD::AND); }
   void visitOr (User &I) { visitBinary(I, ISD::OR); }
   void visitXor(User &I) { visitBinary(I, ISD::XOR); }
-  void visitShl(User &I) { visitBinary(I, ISD::SHL, true); }
-  void visitShr(User &I) {
-    visitBinary(I, I.getType()->isUnsigned() ? ISD::SRL : ISD::SRA, true);
+  void visitShl(User &I) { visitShift(I, ISD::SHL); }
+  void visitShr(User &I) { 
+    visitShift(I, I.getType()->isUnsigned() ? ISD::SRL : ISD::SRA);
   }
 
   void visitSetCC(User &I, ISD::CondCode SignedOpc, ISD::CondCode UnsignedOpc);
@@ -520,13 +521,19 @@ void SelectionDAGLowering::visitSub(User &I) {
   }
 }
 
-void SelectionDAGLowering::visitBinary(User &I, unsigned Opcode, bool isShift) {
+void SelectionDAGLowering::visitBinary(User &I, unsigned Opcode) {
   SDOperand Op1 = getValue(I.getOperand(0));
   SDOperand Op2 = getValue(I.getOperand(1));
 
-  if (isShift)
-    Op2 = DAG.getNode(ISD::ANY_EXTEND, TLI.getShiftAmountTy(), Op2);
+  setValue(&I, DAG.getNode(Opcode, Op1.getValueType(), Op1, Op2));
+}
 
+void SelectionDAGLowering::visitShift(User &I, unsigned Opcode) {
+  SDOperand Op1 = getValue(I.getOperand(0));
+  SDOperand Op2 = getValue(I.getOperand(1));
+  
+  Op2 = DAG.getNode(ISD::ANY_EXTEND, TLI.getShiftAmountTy(), Op2);
+  
   setValue(&I, DAG.getNode(Opcode, Op1.getValueType(), Op1, Op2));
 }