[turbofan] Introduce prediction for exception handlers.

test/unittests/compiler/common-operator-unittest.cc

Index: test/unittests/compiler/common-operator-unittest.cc
diff --git a/test/unittests/compiler/common-operator-unittest.cc b/test/unittests/compiler/common-operator-unittest.cc
index d2f816beb7cecfe6bfab7f2e24e14f4cab181e3c..81d60f46de422e1d8ee1a1f856649b34f9a666c5 100644
--- a/test/unittests/compiler/common-operator-unittest.cc
+++ b/test/unittests/compiler/common-operator-unittest.cc
@@ -52,7 +52,6 @@ const SharedOperator kSharedOperators[] = {
     SHARED(IfTrue, Operator::kKontrol, 0, 0, 1, 0, 0, 1),
     SHARED(IfFalse, Operator::kKontrol, 0, 0, 1, 0, 0, 1),
     SHARED(IfSuccess, Operator::kKontrol, 0, 0, 1, 0, 0, 1),
-    SHARED(IfException, Operator::kKontrol, 0, 0, 1, 1, 0, 1),
     SHARED(Throw, Operator::kKontrol, 1, 1, 1, 0, 0, 1),
     SHARED(Return, Operator::kNoThrow, 1, 1, 1, 0, 0, 1),
     SHARED(Terminate, Operator::kKontrol, 0, 1, 1, 0, 0, 1)
@@ -217,6 +216,23 @@ TEST_F(CommonOperatorTest, Branch) {
 }
 
 
+TEST_F(CommonOperatorTest, IfException) {
+  static const bool kBooleans[] = {false, true};
+  TRACED_FOREACH(bool, caught, kBooleans) {
+    const Operator* const op = common()->IfException(caught);
+    EXPECT_EQ(IrOpcode::kIfException, op->opcode());
+    EXPECT_EQ(Operator::kKontrol, op->properties());
+    EXPECT_EQ(0, op->ValueInputCount());
+    EXPECT_EQ(0, op->EffectInputCount());
+    EXPECT_EQ(1, op->ControlInputCount());
+    EXPECT_EQ(1, OperatorProperties::GetTotalInputCount(op));
+    EXPECT_EQ(1, op->ValueOutputCount());
+    EXPECT_EQ(0, op->EffectOutputCount());
+    EXPECT_EQ(1, op->ControlOutputCount());
+  }
+}
+
+
 TEST_F(CommonOperatorTest, Switch) {
   TRACED_FOREACH(size_t, cases, kCases) {
     const Operator* const op = common()->Switch(cases);