[turbofan] ARM64 branch selector additions

src/compiler/arm64/code-generator-arm64.cc

Index: src/compiler/arm64/code-generator-arm64.cc
diff --git a/src/compiler/arm64/code-generator-arm64.cc b/src/compiler/arm64/code-generator-arm64.cc
index d2fdf46aa6a9158dda24063ec5244ecd8f151c84..3c5aa4173f8666304fe183e9438503febe830059 100644
--- a/src/compiler/arm64/code-generator-arm64.cc
+++ b/src/compiler/arm64/code-generator-arm64.cc
@@ -339,6 +339,12 @@ void CodeGenerator::AssembleArchInstruction(Instruction* instr) {
     case kArm64Cmp32:
       __ Cmp(i.InputRegister32(0), i.InputOperand32(1));
       break;
+    case kArm64Cmn:
+      __ Cmn(i.InputRegister(0), i.InputOperand(1));
+      break;
+    case kArm64Cmn32:
+      __ Cmn(i.InputRegister32(0), i.InputOperand32(1));
+      break;
     case kArm64Tst:
       __ Tst(i.InputRegister(0), i.InputOperand(1));
       break;