[fullcode] Make intrinsic-to-stub-call handling platform independent.

src/full-codegen/full-codegen.cc

 // Copyright 2012 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/full-codegen/full-codegen.h"
 
 #include "src/ast.h"
 #include "src/ast-numbering.h"
 #include "src/code-factory.h"
 #include "src/codegen.h"
@@ skipping 464 matching lines @@
   DCHECK(args->length() == 2);
   VisitForStackValue(args->at(0));
   VisitForStackValue(args->at(1));
 
   MathPowStub stub(isolate(), MathPowStub::ON_STACK);
   __ CallStub(&stub);
   context()->Plug(result_register());
 }
 
 
+void FullCodeGenerator::EmitIntrinsicAsStubCall(CallRuntime* expr,
+                                                const Callable& callable) {
+  ZoneList<Expression*>* args = expr->arguments();
+  int param_count = callable.descriptor().GetRegisterParameterCount();
+  DCHECK_EQ(args->length(), param_count);
+
+  if (param_count > 0) {
+    int last = param_count - 1;
+    // Put all but last arguments on stack.
+    for (int i = 0; i < last; i++) {
+      VisitForStackValue(args->at(i));
+    }
+    // The last argument goes to the accumulator.
+    VisitForAccumulatorValue(args->at(last));
+
+    // Move the arguments to the registers, as required by the stub.
+    __ Move(callable.descriptor().GetRegisterParameter(last),
+            result_register());
+    for (int i = last; i-- > 0;) {
+      __ Pop(callable.descriptor().GetRegisterParameter(i));
+    }
+  }
+  __ Call(callable.code(), RelocInfo::CODE_TARGET);
+  context()->Plug(result_register());
+}
+
+
+void FullCodeGenerator::EmitNumberToString(CallRuntime* expr) {
+  EmitIntrinsicAsStubCall(expr, CodeFactory::NumberToString(isolate()));
+}
+
+
+void FullCodeGenerator::EmitToString(CallRuntime* expr) {
+  EmitIntrinsicAsStubCall(expr, CodeFactory::ToString(isolate()));
+}
+
+
+void FullCodeGenerator::EmitToLength(CallRuntime* expr) {
+  EmitIntrinsicAsStubCall(expr, CodeFactory::ToLength(isolate()));
+}
+
+
+void FullCodeGenerator::EmitToNumber(CallRuntime* expr) {
+  EmitIntrinsicAsStubCall(expr, CodeFactory::ToNumber(isolate()));
+}
+
+
+void FullCodeGenerator::EmitToObject(CallRuntime* expr) {
+  EmitIntrinsicAsStubCall(expr, CodeFactory::ToObject(isolate()));
+}
+
+
+void FullCodeGenerator::EmitRegExpConstructResult(CallRuntime* expr) {
+  EmitIntrinsicAsStubCall(expr, CodeFactory::RegExpConstructResult(isolate()));
+}
+
+
 bool RecordStatementPosition(MacroAssembler* masm, int pos) {
   if (pos == RelocInfo::kNoPosition) return false;
   masm->positions_recorder()->RecordStatementPosition(pos);
   masm->positions_recorder()->RecordPosition(pos);
   return masm->positions_recorder()->WriteRecordedPositions();
 }
 
 
 bool RecordPosition(MacroAssembler* masm, int pos) {
   if (pos == RelocInfo::kNoPosition) return false;
@@ skipping 1113 matching lines @@
   return var->mode() == CONST_LEGACY || var->scope()->is_nonlinear() ||
          var->initializer_position() >= proxy->position();
 }
 
 
 #undef __
 
 
 }  // namespace internal
 }  // namespace v8