Add unary not operator to fast compiler.

Review URL: http://codereview.chromium.org/343057

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@3193 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

src/arm/fast-codegen-arm.cc

@@ -901,6 +901,71 @@ void FastCodeGenerator::VisitUnaryOperation(UnaryOperation* expr) {
       }
       break;
 
+    case Token::NOT: {
+      ASSERT_EQ(Expression::kTest, expr->expression()->context());
+
+      Label push_true;
+      Label push_false;
+      Label done;
+      Label* saved_true = true_label_;
+      Label* saved_false = false_label_;
+      switch (expr->context()) {
+        case Expression::kUninitialized:
+          UNREACHABLE();
+          break;
+
+        case Expression::kValue:
+          true_label_ = &push_false;
+          false_label_ = &push_true;
+          Visit(expr->expression());
+          __ bind(&push_true);
+          __ LoadRoot(ip, Heap::kTrueValueRootIndex);
+          __ push(ip);
+          __ jmp(&done);
+          __ bind(&push_false);
+          __ LoadRoot(ip, Heap::kFalseValueRootIndex);
+          __ push(ip);
+          __ bind(&done);
+          break;
+
+        case Expression::kEffect:
+          true_label_ = &done;
+          false_label_ = &done;
+          Visit(expr->expression());
+          __ bind(&done);
+          break;
+
+        case Expression::kTest:
+          true_label_ = saved_false;
+          false_label_ = saved_true;
+          Visit(expr->expression());
+          break;
+
+        case Expression::kValueTest:
+          true_label_ = saved_false;
+          false_label_ = &push_true;
+          Visit(expr->expression());
+          __ bind(&push_true);
+          __ LoadRoot(ip, Heap::kTrueValueRootIndex);
+          __ push(ip);
+          __ jmp(saved_true);
+          break;
+
+        case Expression::kTestValue:
+          true_label_ = &push_false;
+          false_label_ = saved_true;
+          Visit(expr->expression());
+          __ bind(&push_false);
+          __ LoadRoot(ip, Heap::kFalseValueRootIndex);
+          __ push(ip);
+          __ jmp(saved_false);
+          break;
+      }
+      true_label_ = saved_true;
+      false_label_ = saved_false;
+      break;
+    }
+
     default:
       UNREACHABLE();
   }

src/compiler.cc

@@ -837,6 +837,9 @@ void CodeGenSelector::VisitUnaryOperation(UnaryOperation* expr) {
     case Token::VOID:
       ProcessExpression(expr->expression(), Expression::kEffect);
       break;
+    case Token::NOT:
+      ProcessExpression(expr->expression(), Expression::kTest);
+      break;
     default:
       BAILOUT("UnaryOperation");
   }

src/ia32/fast-codegen-ia32.cc

@@ -926,6 +926,67 @@ void FastCodeGenerator::VisitUnaryOperation(UnaryOperation* expr) {
       }
       break;
 
+    case Token::NOT: {
+      ASSERT_EQ(Expression::kTest, expr->expression()->context());
+
+      Label push_true;
+      Label push_false;
+      Label done;
+      Label* saved_true = true_label_;
+      Label* saved_false = false_label_;
+      switch (expr->context()) {
+        case Expression::kUninitialized:
+          UNREACHABLE();
+          break;
+
+        case Expression::kValue:
+          true_label_ = &push_false;
+          false_label_ = &push_true;
+          Visit(expr->expression());
+          __ bind(&push_true);
+          __ push(Immediate(Factory::true_value()));
+          __ jmp(&done);
+          __ bind(&push_false);
+          __ push(Immediate(Factory::false_value()));
+          __ bind(&done);
+          break;
+
+        case Expression::kEffect:
+          true_label_ = &done;
+          false_label_ = &done;
+          Visit(expr->expression());
+          __ bind(&done);
+          break;
+
+        case Expression::kTest:
+          true_label_ = saved_false;
+          false_label_ = saved_true;
+          Visit(expr->expression());
+          break;
+
+        case Expression::kValueTest:
+          true_label_ = saved_false;
+          false_label_ = &push_true;
+          Visit(expr->expression());
+          __ bind(&push_true);
+          __ push(Immediate(Factory::true_value()));
+          __ jmp(saved_true);
+          break;
+
+        case Expression::kTestValue:
+          true_label_ = &push_false;
+          false_label_ = saved_true;
+          Visit(expr->expression());
+          __ bind(&push_false);
+          __ push(Immediate(Factory::false_value()));
+          __ jmp(saved_false);
+          break;
+      }
+      true_label_ = saved_true;
+      false_label_ = saved_false;
+      break;
+    }
+
     default:
       UNREACHABLE();
   }

src/x64/fast-codegen-x64.cc

@@ -942,6 +942,67 @@ void FastCodeGenerator::VisitUnaryOperation(UnaryOperation* expr) {
       }
       break;
 
+    case Token::NOT: {
+      ASSERT_EQ(Expression::kTest, expr->expression()->context());
+
+      Label push_true;
+      Label push_false;
+      Label done;
+      Label* saved_true = true_label_;
+      Label* saved_false = false_label_;
+      switch (expr->context()) {
+        case Expression::kUninitialized:
+          UNREACHABLE();
+          break;
+
+        case Expression::kValue:
+          true_label_ = &push_false;
+          false_label_ = &push_true;
+          Visit(expr->expression());
+          __ bind(&push_true);
+          __ PushRoot(Heap::kTrueValueRootIndex);
+          __ jmp(&done);
+          __ bind(&push_false);
+          __ PushRoot(Heap::kFalseValueRootIndex);
+          __ bind(&done);
+          break;
+
+        case Expression::kEffect:
+          true_label_ = &done;
+          false_label_ = &done;
+          Visit(expr->expression());
+          __ bind(&done);
+          break;
+
+        case Expression::kTest:
+          true_label_ = saved_false;
+          false_label_ = saved_true;
+          Visit(expr->expression());
+          break;
+
+        case Expression::kValueTest:
+          true_label_ = saved_false;
+          false_label_ = &push_true;
+          Visit(expr->expression());
+          __ bind(&push_true);
+          __ PushRoot(Heap::kTrueValueRootIndex);
+          __ jmp(saved_true);
+          break;
+
+        case Expression::kTestValue:
+          true_label_ = &push_false;
+          false_label_ = saved_true;
+          Visit(expr->expression());
+          __ bind(&push_false);
+          __ PushRoot(Heap::kFalseValueRootIndex);
+          __ jmp(saved_false);
+          break;
+      }
+      true_label_ = saved_true;
+      false_label_ = saved_false;
+      break;
+    }
+
     default:
       UNREACHABLE();
   }