[turbofan] Turn common Guard operator into simplified TypeGuard.

test/unittests/compiler/node-test-utils.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 "test/unittests/compiler/node-test-utils.h"
 
 #include <vector>
 
 #include "src/assembler.h"
 #include "src/compiler/common-operator.h"
@@ skipping 1291 matching lines @@
   bool MatchAndExplain(Node* node, MatchResultListener* listener) const final {
     return (NodeMatcher::MatchAndExplain(node, listener) &&
             PrintMatchAndExplain(OpParameter<MachineRepresentation>(node),
                                  "rep", rep_matcher_, listener));
   }
 
  private:
   const Matcher<MachineRepresentation> rep_matcher_;
 };
 
-class IsGuardMatcher final : public NodeMatcher {
+class IsTypeGuardMatcher final : public NodeMatcher {
  public:
-  IsGuardMatcher(const Matcher<Type*>& type_matcher,
-                 const Matcher<Node*>& value_matcher,
-                 const Matcher<Node*>& control_matcher)
-      : NodeMatcher(IrOpcode::kGuard),
+  IsTypeGuardMatcher(const Matcher<Type*>& type_matcher,
+                     const Matcher<Node*>& value_matcher,
+                     const Matcher<Node*>& control_matcher)
+      : NodeMatcher(IrOpcode::kTypeGuard),
         type_matcher_(type_matcher),
         value_matcher_(value_matcher),
         control_matcher_(control_matcher) {}
 
   bool MatchAndExplain(Node* node, MatchResultListener* listener) const final {
     return (NodeMatcher::MatchAndExplain(node, listener) &&
             PrintMatchAndExplain(OpParameter<Type*>(node->op()), "type",
                                  type_matcher_, listener) &&
             PrintMatchAndExplain(NodeProperties::GetValueInput(node, 0),
                                  "value", value_matcher_, listener) &&
@@ skipping 680 matching lines @@
   value_matchers.push_back(value2_matcher);
   value_matchers.push_back(value3_matcher);
   value_matchers.push_back(value4_matcher);
   value_matchers.push_back(value5_matcher);
   value_matchers.push_back(value6_matcher);
   value_matchers.push_back(value7_matcher);
   return MakeMatcher(new IsTailCallMatcher(descriptor_matcher, value_matchers,
                                            effect_matcher, control_matcher));
 }
 
-Matcher<Node*> IsGuard(const Matcher<Type*>& type_matcher,
-                       const Matcher<Node*>& value_matcher,
-                       const Matcher<Node*>& control_matcher) {
+Matcher<Node*> IsTypeGuard(const Matcher<Type*>& type_matcher,
+                           const Matcher<Node*>& value_matcher,
+                           const Matcher<Node*>& control_matcher) {
   return MakeMatcher(
-      new IsGuardMatcher(type_matcher, value_matcher, control_matcher));
+      new IsTypeGuardMatcher(type_matcher, value_matcher, control_matcher));
 }
 
 Matcher<Node*> IsReferenceEqual(const Matcher<Type*>& type_matcher,
                                 const Matcher<Node*>& lhs_matcher,
                                 const Matcher<Node*>& rhs_matcher) {
   return MakeMatcher(
       new IsReferenceEqualMatcher(type_matcher, lhs_matcher, rhs_matcher));
 }
 
 
@@ skipping 228 matching lines @@
 IS_UNOP_MATCHER(ObjectIsReceiver)
 IS_UNOP_MATCHER(ObjectIsSmi)
 IS_UNOP_MATCHER(Word32Clz)
 IS_UNOP_MATCHER(Word32Ctz)
 IS_UNOP_MATCHER(Word32Popcnt)
 #undef IS_UNOP_MATCHER
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8