[builtins] Introduce proper Float64Atan and Float64Atan2 operators.

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 1594 matching lines @@
       return TypeUnaryOp(node, ObjectIsSmi);
     case Runtime::kInlineIsArray:
     case Runtime::kInlineIsDate:
     case Runtime::kInlineIsTypedArray:
     case Runtime::kInlineIsRegExp:
       return Type::Boolean();
     case Runtime::kInlineDoubleLo:
     case Runtime::kInlineDoubleHi:
       return Type::Signed32();
     case Runtime::kInlineConstructDouble:
-    case Runtime::kInlineMathAtan2:
       return Type::Number();
     case Runtime::kInlineCreateIterResultObject:
     case Runtime::kInlineRegExpConstructResult:
       return Type::OtherObject();
     case Runtime::kInlineSubString:
     case Runtime::kInlineStringCharFromCode:
       return Type::String();
     case Runtime::kInlineToInteger:
       return TypeUnaryOp(node, ToInteger);
     case Runtime::kInlineToLength:
@@ skipping 152 matching lines @@
 }
 
 Type* Typer::Visitor::TypeNumberCeil(Node* node) {
   return TypeUnaryOp(node, NumberCeil);
 }
 
 Type* Typer::Visitor::TypeNumberFloor(Node* node) {
   return TypeUnaryOp(node, NumberFloor);
 }
 
+Type* Typer::Visitor::TypeNumberAtan(Node* node) { return Type::Number(); }
+
+Type* Typer::Visitor::TypeNumberAtan2(Node* node) { return Type::Number(); }
+
 Type* Typer::Visitor::TypeNumberLog(Node* node) { return Type::Number(); }
 
 Type* Typer::Visitor::TypeNumberLog1p(Node* node) { return Type::Number(); }
 
 Type* Typer::Visitor::TypeNumberRound(Node* node) {
   return TypeUnaryOp(node, NumberRound);
 }
 
 Type* Typer::Visitor::TypeNumberTrunc(Node* node) {
   return TypeUnaryOp(node, NumberTrunc);
@@ skipping 699 matching lines @@
 
 
 Type* Typer::Visitor::TypeFloat64Min(Node* node) { return Type::Number(); }
 
 
 Type* Typer::Visitor::TypeFloat64Abs(Node* node) {
   // TODO(turbofan): We should be able to infer a better type here.
   return Type::Number();
 }
 
+Type* Typer::Visitor::TypeFloat64Atan(Node* node) { return Type::Number(); }
+
+Type* Typer::Visitor::TypeFloat64Atan2(Node* node) { return Type::Number(); }
+
 Type* Typer::Visitor::TypeFloat64Log(Node* node) { return Type::Number(); }
 
 Type* Typer::Visitor::TypeFloat64Log1p(Node* node) { return Type::Number(); }
 
 Type* Typer::Visitor::TypeFloat64Sqrt(Node* node) { return Type::Number(); }
 
 
 Type* Typer::Visitor::TypeFloat64Equal(Node* node) { return Type::Boolean(); }
 
 
@@ skipping 152 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