[turbofan] Numeric type feedback for mul, div and mod.

src/compiler/js-typed-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/code-factory.h"
 #include "src/compilation-dependencies.h"
 #include "src/compiler/access-builder.h"
 #include "src/compiler/js-graph.h"
 #include "src/compiler/js-typed-lowering.h"
 #include "src/compiler/linkage.h"
@@ skipping 455 matching lines @@
                       jsgraph()->HeapConstant(callable.code()));
     NodeProperties::ChangeOp(node, common()->Call(desc));
     return Changed(node);
   }
   return NoChange();
 }
 
 
 Reduction JSTypedLowering::ReduceJSModulus(Node* node) {
   if (flags() & kDisableBinaryOpReduction) return NoChange();
-
   JSBinopReduction r(this, node);
   if (r.BothInputsAre(Type::Number())) {
     // JSModulus(x:number, x:number) => NumberModulus(x, y)
     return r.ChangeToPureOperator(simplified()->NumberModulus(),
                                   Type::Number());
   }
+  BinaryOperationHints::Hint feedback = r.GetNumberBinaryOperationFeedback();
+  if (feedback != BinaryOperationHints::kAny) {
+    return r.ChangeToSpeculativeOperator(
+        simplified()->SpeculativeNumberModulus(feedback), Type::Number());
+  }
   return NoChange();
 }
 
 Reduction JSTypedLowering::ReduceJSSubtract(Node* node) {
   if (flags() & kDisableBinaryOpReduction) return NoChange();
   JSBinopReduction r(this, node);
   BinaryOperationHints::Hint feedback = r.GetNumberBinaryOperationFeedback();
   if (feedback == BinaryOperationHints::kNumberOrUndefined &&
       r.BothInputsAre(Type::PlainPrimitive())) {
     // JSSubtract(x:plain-primitive, y:plain-primitive)
     //   => NumberSubtract(ToNumber(x), ToNumber(y))
     Node* frame_state = NodeProperties::GetFrameStateInput(node, 1);
     r.ConvertInputsToNumber(frame_state);
     return r.ChangeToPureOperator(simplified()->NumberSubtract(),
                                   Type::Number());
   }
   if (feedback != BinaryOperationHints::kAny) {
     // Lower to the optimistic number binop.
     return r.ChangeToSpeculativeOperator(
         simplified()->SpeculativeNumberSubtract(feedback), Type::Number());
   }
   Node* frame_state = NodeProperties::GetFrameStateInput(node, 1);
   r.ConvertInputsToNumber(frame_state);
   return r.ChangeToPureOperator(simplified()->NumberSubtract(), Type::Number());
 }
 
 Reduction JSTypedLowering::ReduceJSMultiply(Node* node) {
   if (flags() & kDisableBinaryOpReduction) return NoChange();
   JSBinopReduction r(this, node);
+
+  BinaryOperationHints::Hint feedback = r.GetNumberBinaryOperationFeedback();
+  if (feedback != BinaryOperationHints::kAny) {
+    return r.ChangeToSpeculativeOperator(
+        simplified()->SpeculativeNumberMultiply(feedback), Type::Number());
+  }
+
   Node* frame_state = NodeProperties::GetFrameStateInput(node, 1);
   r.ConvertInputsToNumber(frame_state);
   return r.ChangeToPureOperator(simplified()->NumberMultiply(), Type::Number());
 }
 
 Reduction JSTypedLowering::ReduceJSDivide(Node* node) {
   if (flags() & kDisableBinaryOpReduction) return NoChange();
   JSBinopReduction r(this, node);
+  BinaryOperationHints::Hint feedback = r.GetNumberBinaryOperationFeedback();
+  if (feedback != BinaryOperationHints::kAny) {
+    return r.ChangeToSpeculativeOperator(
+        simplified()->SpeculativeNumberDivide(feedback), Type::Number());
+  }
   Node* frame_state = NodeProperties::GetFrameStateInput(node, 1);
   r.ConvertInputsToNumber(frame_state);
   return r.ChangeToPureOperator(simplified()->NumberDivide(), Type::Number());
 }
 
 
 Reduction JSTypedLowering::ReduceInt32Binop(Node* node, const Operator* intOp) {
   if (flags() & kDisableBinaryOpReduction) return NoChange();
 
   JSBinopReduction r(this, node);
@@ skipping 1461 matching lines @@
 }
 
 
 CompilationDependencies* JSTypedLowering::dependencies() const {
   return dependencies_;
 }
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8