[llvm] r374370 - [DAGCombiner] reduce code duplication; NFC

[Sanjay Patel via llvm-commits]

Author: spatel
Date: Thu Oct 10 08:38:29 2019
New Revision: 374370

URL: http://llvm.org/viewvc/llvm-project?rev=374370&view=rev
Log:
[DAGCombiner] reduce code duplication; NFC

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=374370&r1=374369&r2=374370&view=diff
==============================================================================
--- llvm/trunk/lib/CodeGen/SelectionDAG/DAGCombiner.cpp (original)
+++ llvm/trunk/lib/CodeGen/SelectionDAG/DAGCombiner.cpp Thu Oct 10 08:38:29 2019
@@ -8225,13 +8225,15 @@ SDValue DAGCombiner::foldSelectOfConstan
     // extend and add. Use a target hook because some targets may prefer to
     // transform in the other direction.
     if (TLI.convertSelectOfConstantsToMath(VT)) {
-      if (C1->getAPIntValue() - 1 == C2->getAPIntValue()) {
+      const APInt &C1Val = C1->getAPIntValue();
+      const APInt &C2Val = C2->getAPIntValue();
+      if (C1Val - 1 == C2Val) {
         // select Cond, C1, C1-1 --> add (zext Cond), C1-1
         if (VT != MVT::i1)
           Cond = DAG.getNode(ISD::ZERO_EXTEND, DL, VT, Cond);
         return DAG.getNode(ISD::ADD, DL, VT, Cond, N2);
       }
-      if (C1->getAPIntValue() + 1 == C2->getAPIntValue()) {
+      if (C1Val + 1 == C2Val) {
         // select Cond, C1, C1+1 --> add (sext Cond), C1+1
         if (VT != MVT::i1)
           Cond = DAG.getNode(ISD::SIGN_EXTEND, DL, VT, Cond);