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

src/compiler/typer.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/typer.h"
 
 #include "src/base/flags.h"
 #include "src/bootstrapper.h"
 #include "src/compilation-dependencies.h"
 #include "src/compiler/common-operator.h"
@@ skipping 1716 matching lines @@
 Type* Typer::Visitor::TypeNumberSubtract(Node* node) { return Type::Number(); }
 
 Type* Typer::Visitor::TypeSpeculativeNumberAdd(Node* node) {
   return Type::Number();
 }
 
 Type* Typer::Visitor::TypeSpeculativeNumberSubtract(Node* node) {
   return Type::Number();
 }
 
+Type* Typer::Visitor::TypeSpeculativeNumberMultiply(Node* node) {
+  return Type::Number();
+}
+
+Type* Typer::Visitor::TypeSpeculativeNumberDivide(Node* node) {
+  return Type::Number();
+}
+
+Type* Typer::Visitor::TypeSpeculativeNumberModulus(Node* node) {
+  return Type::Number();
+}
+
 Type* Typer::Visitor::TypeNumberMultiply(Node* node) { return Type::Number(); }
 
 Type* Typer::Visitor::TypeNumberDivide(Node* node) { return Type::Number(); }
 
 Type* Typer::Visitor::TypeNumberModulus(Node* node) { return Type::Number(); }
 
 Type* Typer::Visitor::TypeNumberBitwiseOr(Node* node) {
   return Type::Signed32();
 }
 
@@ skipping 166 matching lines @@
 
 
 Type* Typer::Visitor::TypeChangeTaggedToFloat64(Node* node) {
   Type* arg = Operand(node, 0);
   DCHECK(arg->Is(Type::Number()));
   return ChangeRepresentation(arg, Type::UntaggedFloat64(), zone());
 }
 
 Type* Typer::Visitor::TypeTruncateTaggedToFloat64(Node* node) {
   Type* arg = Operand(node, 0);
-  DCHECK(arg->Is(Type::NumberOrOddball()));
+  // TODO(jarin) This DCHECK does not work because of speculative feedback.
+  // Re-enable once we record the speculative feedback in types.
+  // DCHECK(arg->Is(Type::NumberOrOddball()));
   return ChangeRepresentation(arg, Type::UntaggedFloat64(), zone());
 }
 
 Type* Typer::Visitor::TypeChangeInt31ToTaggedSigned(Node* node) {
   Type* arg = Operand(node, 0);
   // TODO(jarin): DCHECK(arg->Is(Type::Signed31()));
   // Some mjsunit/asm and mjsunit/wasm tests fail this check.
   // For instance, asm/int32-umod fails with Signed32/UntaggedIntegral32 in
   // simplified-lowering (after propagation).
   Type* rep =
@@ skipping 814 matching lines @@
   }
   if (Type::IsInteger(*value)) {
     return Type::Range(value->Number(), value->Number(), zone());
   }
   return Type::Constant(value, zone());
 }
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8