[turbofan] Lower more number operations to integer operations.

src/compiler/simplified-lowering.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 "src/compiler/simplified-lowering.h"
 
 #include <limits>
 
 #include "src/base/bits.h"
 #include "src/code-factory.h"
@@ skipping 426 matching lines @@
 
   const Operator* Uint32Op(Node* node) {
     return changer_->Uint32OperatorFor(node->opcode());
   }
 
   const Operator* Float64Op(Node* node) {
     return changer_->Float64OperatorFor(node->opcode());
   }
 
   bool CanLowerToInt32Binop(Node* node, MachineTypeUnion use) {
-    return BothInputsAre(node, Type::Signed32()) && !CanObserveNonInt32(use);
+    return BothInputsAre(node, Type::Signed32()) &&
+           (!CanObserveNonInt32(use) ||
+            NodeProperties::GetBounds(node).upper->Is(Type::Signed32()));
   }
 
   bool CanLowerToInt32AdditiveBinop(Node* node, MachineTypeUnion use) {
     return BothInputsAre(node, safe_int_additive_range_) &&
            !CanObserveNonInt32(use);
   }
 
   bool CanLowerToUint32Binop(Node* node, MachineTypeUnion use) {
-    return BothInputsAre(node, Type::Unsigned32()) && !CanObserveNonUint32(use);
+    return BothInputsAre(node, Type::Unsigned32()) &&
+           (!CanObserveNonUint32(use) ||
+            NodeProperties::GetBounds(node).upper->Is(Type::Unsigned32()));
   }
 
   bool CanLowerToUint32AdditiveBinop(Node* node, MachineTypeUnion use) {
     return BothInputsAre(node, safe_int_additive_range_) &&
            !CanObserveNonUint32(use);
   }
 
   bool CanObserveNonWord32(MachineTypeUnion use) {
     return (use & ~(kTypeUint32 | kTypeInt32)) != 0;
   }
@@ skipping 1140 matching lines @@
 
 void SimplifiedLowering::DoStringLessThanOrEqual(Node* node) {
   node->set_op(machine()->IntLessThanOrEqual());
   node->ReplaceInput(0, StringComparison(node, true));
   node->ReplaceInput(1, jsgraph()->SmiConstant(EQUAL));
 }
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8