[llvm] r301300 - [DAGCombiner] Use SDValue::getConstantOperandVal helper where possible. NFCI.

[Simon Pilgrim via llvm-commits]

Author: rksimon
Date: Tue Apr 25 05:47:35 2017
New Revision: 301300

URL: http://llvm.org/viewvc/llvm-project?rev=301300&view=rev
Log:
[DAGCombiner] Use SDValue::getConstantOperandVal helper where possible. NFCI.

Modified:
    llvm/trunk/lib/CodeGen/SelectionDAG/DAGCombiner.cpp

Modified: llvm/trunk/lib/CodeGen/SelectionDAG/DAGCombiner.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/CodeGen/SelectionDAG/DAGCombiner.cpp?rev=301300&r1=301299&r2=301300&view=diff
==============================================================================
--- llvm/trunk/lib/CodeGen/SelectionDAG/DAGCombiner.cpp (original)
+++ llvm/trunk/lib/CodeGen/SelectionDAG/DAGCombiner.cpp Tue Apr 25 05:47:35 2017
@@ -5617,8 +5617,7 @@ SDValue DAGCombiner::visitSRL(SDNode *N)
   if (N1C && N0.getOpcode() == ISD::TRUNCATE &&
       N0.getOperand(0).getOpcode() == ISD::SRL &&
       isa<ConstantSDNode>(N0.getOperand(0)->getOperand(1))) {
-    uint64_t c1 =
-      cast<ConstantSDNode>(N0.getOperand(0)->getOperand(1))->getZExtValue();
+    uint64_t c1 = N0.getOperand(0).getConstantOperandVal(1);
     uint64_t c2 = N1C->getZExtValue();
     EVT InnerShiftVT = N0.getOperand(0).getValueType();
     EVT ShiftCountVT = N0.getOperand(0)->getOperand(1).getValueType();
@@ -11645,7 +11644,7 @@ bool DAGCombiner::SliceUpLoad(SDNode *N)
     // Check if this is a trunc(lshr).
     if (User->getOpcode() == ISD::SRL && User->hasOneUse() &&
         isa<ConstantSDNode>(User->getOperand(1))) {
-      Shift = cast<ConstantSDNode>(User->getOperand(1))->getZExtValue();
+      Shift = User->getConstantOperandVal(1);
       User = *User->use_begin();
     }
 
@@ -13124,8 +13123,7 @@ SDValue DAGCombiner::visitINSERT_VECTOR_
   // do this only if indices are both constants and Idx1 < Idx0.
   if (InVec.getOpcode() == ISD::INSERT_VECTOR_ELT && InVec.hasOneUse()
       && isa<ConstantSDNode>(InVec.getOperand(2))) {
-    unsigned OtherElt =
-      cast<ConstantSDNode>(InVec.getOperand(2))->getZExtValue();
+    unsigned OtherElt = InVec.getConstantOperandVal(2);
     if (Elt < OtherElt) {
       // Swap nodes.
       SDValue NewOp = DAG.getNode(ISD::INSERT_VECTOR_ELT, DL, VT,
@@ -14069,7 +14067,7 @@ static SDValue combineConcatVectorOfExtr
 
     if (!isa<ConstantSDNode>(Op.getOperand(1)))
       return SDValue();
-    int ExtIdx = cast<ConstantSDNode>(Op.getOperand(1))->getZExtValue();
+    int ExtIdx = Op.getConstantOperandVal(1);
 
     // Ensure that we are extracting a subvector from a vector the same
     // size as the result.
@@ -15053,7 +15051,7 @@ SDValue DAGCombiner::visitINSERT_SUBVECT
   if (N0.getOpcode() == ISD::INSERT_SUBVECTOR && N0.hasOneUse() &&
       N1.getValueType() == N0.getOperand(1).getValueType() &&
       isa<ConstantSDNode>(N0.getOperand(2))) {
-    unsigned OtherIdx = cast<ConstantSDNode>(N0.getOperand(2))->getZExtValue();
+    unsigned OtherIdx = N0.getConstantOperandVal(2);
     if (InsIdx < OtherIdx) {
       // Swap nodes.
       SDValue NewOp = DAG.getNode(ISD::INSERT_SUBVECTOR, SDLoc(N), VT,