[turbofan] Introduce prediction for exception handlers.

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

 // Copyright 2014 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include <limits>
 
 #include "src/compiler/common-operator.h"
 #include "src/compiler/opcodes.h"
 #include "src/compiler/operator.h"
 #include "src/compiler/operator-properties.h"
@@ skipping 34 matching lines @@
                control_output_count)                                         \
   {                                                                          \
     &CommonOperatorBuilder::Name, IrOpcode::k##Name, properties,             \
         value_input_count, effect_input_count, control_input_count,          \
         value_output_count, effect_output_count, control_output_count        \
   }
     SHARED(Dead, Operator::kFoldable, 0, 0, 0, 0, 0, 1),
     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)
 #undef SHARED
 };
 
 
 class CommonSharedOperatorTest
     : public TestWithZone,
       public ::testing::WithParamInterface<SharedOperator> {};
@@ skipping 105 matching lines @@
     -453036354, -433622833, -282638793, -28375, -27788, -22770, -18806, -14173,
     -11956, -11200, -10212, -8160, -3751, -2758, -1522, -121, -120, -118, -117,
     -106, -84, -80, -74, -59, -52, -48, -39, -35, -17, -11, -10, -9, -7, -5, 0,
     9, 12, 17, 23, 29, 31, 33, 35, 40, 47, 55, 56, 62, 64, 67, 68, 69, 74, 79,
     84, 89, 90, 97, 104, 118, 124, 126, 127, 7278, 17787, 24136, 24202, 25570,
     26680, 30242, 32399, 420886487, 642166225, 821912648, 822577803, 851385718,
     1212241078, 1411419304, 1589626102, 1596437184, 1876245816, 1954730266,
     2008792749, 2045320228, std::numeric_limits<int32_t>::max()};
 
 
-const BranchHint kHints[] = {BranchHint::kNone, BranchHint::kTrue,
-                             BranchHint::kFalse};
+const BranchHint kBranchHints[] = {BranchHint::kNone, BranchHint::kTrue,
+                                   BranchHint::kFalse};
 
 }  // namespace
 
 
 TEST_F(CommonOperatorTest, End) {
   TRACED_FOREACH(size_t, input_count, kInputCounts) {
     const Operator* const op = common()->End(input_count);
     EXPECT_EQ(IrOpcode::kEnd, op->opcode());
     EXPECT_EQ(Operator::kKontrol, op->properties());
     EXPECT_EQ(0, op->ValueInputCount());
     EXPECT_EQ(0, op->EffectInputCount());
     EXPECT_EQ(input_count, op->ControlInputCount());
     EXPECT_EQ(input_count, OperatorProperties::GetTotalInputCount(op));
     EXPECT_EQ(0, op->ValueOutputCount());
     EXPECT_EQ(0, op->EffectOutputCount());
     EXPECT_EQ(0, op->ControlOutputCount());
   }
 }
 
 
 TEST_F(CommonOperatorTest, Branch) {
-  TRACED_FOREACH(BranchHint, hint, kHints) {
+  TRACED_FOREACH(BranchHint, hint, kBranchHints) {
     const Operator* const op = common()->Branch(hint);
     EXPECT_EQ(IrOpcode::kBranch, op->opcode());
     EXPECT_EQ(Operator::kKontrol, op->properties());
     EXPECT_EQ(hint, BranchHintOf(op));
     EXPECT_EQ(1, op->ValueInputCount());
     EXPECT_EQ(0, op->EffectInputCount());
     EXPECT_EQ(1, op->ControlInputCount());
     EXPECT_EQ(2, OperatorProperties::GetTotalInputCount(op));
     EXPECT_EQ(0, op->ValueOutputCount());
     EXPECT_EQ(0, op->EffectOutputCount());
     EXPECT_EQ(2, op->ControlOutputCount());
   }
 }
 
 
+TEST_F(CommonOperatorTest, IfException) {
+  static const IfExceptionHint kIfExceptionHints[] = {
+      IfExceptionHint::kLocallyCaught, IfExceptionHint::kLocallyUncaught};
+  TRACED_FOREACH(IfExceptionHint, hint, kIfExceptionHints) {
+    const Operator* const op = common()->IfException(hint);
+    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);
     EXPECT_EQ(IrOpcode::kSwitch, op->opcode());
     EXPECT_EQ(Operator::kKontrol, op->properties());
     EXPECT_EQ(1, op->ValueInputCount());
     EXPECT_EQ(0, op->EffectInputCount());
     EXPECT_EQ(1, op->ControlInputCount());
     EXPECT_EQ(2, OperatorProperties::GetTotalInputCount(op));
     EXPECT_EQ(0, op->ValueOutputCount());
@@ skipping 19 matching lines @@
   }
 }
 
 
 TEST_F(CommonOperatorTest, Select) {
   static const MachineType kTypes[] = {
       kMachInt8,    kMachUint8,   kMachInt16,    kMachUint16,
       kMachInt32,   kMachUint32,  kMachInt64,    kMachUint64,
       kMachFloat32, kMachFloat64, kMachAnyTagged};
   TRACED_FOREACH(MachineType, type, kTypes) {
-    TRACED_FOREACH(BranchHint, hint, kHints) {
+    TRACED_FOREACH(BranchHint, hint, kBranchHints) {
       const Operator* const op = common()->Select(type, hint);
       EXPECT_EQ(IrOpcode::kSelect, op->opcode());
       EXPECT_EQ(Operator::kPure, op->properties());
       EXPECT_EQ(type, SelectParametersOf(op).type());
       EXPECT_EQ(hint, SelectParametersOf(op).hint());
       EXPECT_EQ(3, op->ValueInputCount());
       EXPECT_EQ(0, op->EffectInputCount());
       EXPECT_EQ(0, op->ControlInputCount());
       EXPECT_EQ(3, OperatorProperties::GetTotalInputCount(op));
       EXPECT_EQ(1, op->ValueOutputCount());
@@ skipping 87 matching lines @@
     EXPECT_EQ(arguments + 1, OperatorProperties::GetTotalInputCount(op));
     EXPECT_EQ(0, op->ControlOutputCount());
     EXPECT_EQ(0, op->EffectOutputCount());
     EXPECT_EQ(1, op->ValueOutputCount());
   }
 }
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8