Version 2.2.11...

src/arm/stub-cache-arm.cc

 // Copyright 2006-2009 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
 //       with the distribution.
 //     * Neither the name of Google Inc. nor the names of its
 //       contributors may be used to endorse or promote products derived
 //       from this software without specific prior written permission.
 //
 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
 #include "v8.h"
 
+#if defined(V8_TARGET_ARCH_ARM)
+
 #include "ic-inl.h"
 #include "codegen-inl.h"
 #include "stub-cache.h"
 
 namespace v8 {
 namespace internal {
 
 #define __ ACCESS_MASM(masm)
 
 
@@ skipping 459 matching lines @@
                                               lookup->holder(),
                                               lookup->GetFieldIndex());
       __ Ret();
     } else {
       ASSERT(lookup->type() == CALLBACKS);
       ASSERT(lookup->GetCallbackObject()->IsAccessorInfo());
       ASSERT(callback != NULL);
       ASSERT(callback->getter() != NULL);
 
       Label cleanup;
-      __ pop(scratch2);
-      __ Push(receiver, scratch2);
+      __ push(receiver);
 
       holder = stub_compiler->CheckPrototypes(holder_obj, holder,
                                               lookup->holder(), scratch1,
                                               scratch2,
                                               name,
                                               &cleanup);
 
       __ push(holder);
       __ Move(holder, Handle<AccessorInfo>(callback));
       __ push(holder);
       __ ldr(scratch1, FieldMemOperand(holder, AccessorInfo::kDataOffset));
       __ Push(scratch1, name_);
 
       ExternalReference ref =
           ExternalReference(IC_Utility(IC::kLoadCallbackProperty));
       __ TailCallExternalReference(ref, 5, 1);
 
       __ bind(&cleanup);
-      __ pop(scratch1);
       __ pop(scratch2);
-      __ push(scratch1);
     }
   }
 
 
   void CompileRegular(MacroAssembler* masm,
                       Register receiver,
                       Register holder,
                       Register scratch,
                       JSObject* holder_obj,
                       Label* miss_label) {
@@ skipping 1069 matching lines @@
 
   // Return the generated code.
   return GetCode(NORMAL, name);
 }
 
 
 Object* LoadStubCompiler::CompileLoadNonexistent(String* name,
                                                  JSObject* object,
                                                  JSObject* last) {
   // ----------- S t a t e -------------
-  //  -- r2    : name
+  //  -- r0    : receiver
   //  -- lr    : return address
-  //  -- [sp]  : receiver
   // -----------------------------------
   Label miss;
 
-  // Load receiver.
-  __ ldr(r0, MemOperand(sp, 0));
-
   // Check that receiver is not a smi.
   __ tst(r0, Operand(kSmiTagMask));
   __ b(eq, &miss);
 
   // Check the maps of the full prototype chain.
   CheckPrototypes(object, r0, last, r3, r1, name, &miss);
 
   // If the last object in the prototype chain is a global object,
   // check that the global property cell is empty.
   if (last->IsGlobalObject()) {
@@ skipping 16 matching lines @@
   // Return the generated code.
   return GetCode(NONEXISTENT, Heap::empty_string());
 }
 
 
 Object* LoadStubCompiler::CompileLoadField(JSObject* object,
                                            JSObject* holder,
                                            int index,
                                            String* name) {
   // ----------- S t a t e -------------
+  //  -- r0    : receiver
   //  -- r2    : name
   //  -- lr    : return address
-  //  -- [sp]  : receiver
   // -----------------------------------
   Label miss;
 
-  __ ldr(r0, MemOperand(sp, 0));
-
   GenerateLoadField(object, holder, r0, r3, r1, index, name, &miss);
   __ bind(&miss);
   GenerateLoadMiss(masm(), Code::LOAD_IC);
 
   // Return the generated code.
   return GetCode(FIELD, name);
 }
 
 
 Object* LoadStubCompiler::CompileLoadCallback(String* name,
                                               JSObject* object,
                                               JSObject* holder,
                                               AccessorInfo* callback) {
   // ----------- S t a t e -------------
+  //  -- r0    : receiver
   //  -- r2    : name
   //  -- lr    : return address
-  //  -- [sp]  : receiver
   // -----------------------------------
   Label miss;
 
-  __ ldr(r0, MemOperand(sp, 0));
   Failure* failure = Failure::InternalError();
   bool success = GenerateLoadCallback(object, holder, r0, r2, r3, r1,
                                       callback, name, &miss, &failure);
   if (!success) return failure;
 
   __ bind(&miss);
   GenerateLoadMiss(masm(), Code::LOAD_IC);
 
   // Return the generated code.
   return GetCode(CALLBACKS, name);
 }
 
 
 Object* LoadStubCompiler::CompileLoadConstant(JSObject* object,
                                               JSObject* holder,
                                               Object* value,
                                               String* name) {
   // ----------- S t a t e -------------
+  //  -- r0    : receiver
   //  -- r2    : name
   //  -- lr    : return address
-  //  -- [sp] : receiver
   // -----------------------------------
   Label miss;
 
-  __ ldr(r0, MemOperand(sp, 0));
-
   GenerateLoadConstant(object, holder, r0, r3, r1, value, name, &miss);
   __ bind(&miss);
   GenerateLoadMiss(masm(), Code::LOAD_IC);
 
   // Return the generated code.
   return GetCode(CONSTANT_FUNCTION, name);
 }
 
 
 Object* LoadStubCompiler::CompileLoadInterceptor(JSObject* object,
                                                  JSObject* holder,
                                                  String* name) {
   // ----------- S t a t e -------------
+  //  -- r0    : receiver
   //  -- r2    : name
   //  -- lr    : return address
-  //  -- [sp]  : receiver
   // -----------------------------------
   Label miss;
 
-  __ ldr(r0, MemOperand(sp, 0));
-
   LookupResult lookup;
   LookupPostInterceptor(holder, name, &lookup);
   GenerateLoadInterceptor(object,
                           holder,
                           &lookup,
                           r0,
                           r2,
                           r3,
                           r1,
                           name,
                           &miss);
   __ bind(&miss);
   GenerateLoadMiss(masm(), Code::LOAD_IC);
 
   // Return the generated code.
   return GetCode(INTERCEPTOR, name);
 }
 
 
 Object* LoadStubCompiler::CompileLoadGlobal(JSObject* object,
                                             GlobalObject* holder,
                                             JSGlobalPropertyCell* cell,
                                             String* name,
                                             bool is_dont_delete) {
   // ----------- S t a t e -------------
+  //  -- r0    : receiver
   //  -- r2    : name
   //  -- lr    : return address
-  //  -- r0    : receiver
-  //  -- sp[0] : receiver
   // -----------------------------------
   Label miss;
 
   // If the object is the holder then we know that it's a global
   // object which can only happen for contextual calls. In this case,
   // the receiver cannot be a smi.
   if (object != holder) {
     __ tst(r0, Operand(kSmiTagMask));
     __ b(eq, &miss);
   }
@@ skipping 186 matching lines @@
   return GetCode(CALLBACKS, name);
 }
 
 
 Object* KeyedStoreStubCompiler::CompileStoreField(JSObject* object,
                                                   int index,
                                                   Map* transition,
                                                   String* name) {
   // ----------- S t a t e -------------
   //  -- r0    : value
-  //  -- r2    : name
+  //  -- r1    : key
+  //  -- r2    : receiver
   //  -- lr    : return address
-  //  -- [sp]  : receiver
   // -----------------------------------
   Label miss;
 
-  __ IncrementCounter(&Counters::keyed_store_field, 1, r1, r3);
+  __ IncrementCounter(&Counters::keyed_store_field, 1, r3, r4);
 
   // Check that the name has not changed.
-  __ cmp(r2, Operand(Handle<String>(name)));
+  __ cmp(r1, Operand(Handle<String>(name)));
   __ b(ne, &miss);
 
-  // Load receiver from the stack.
-  __ ldr(r3, MemOperand(sp));
-  // r1 is used as scratch register, r3 and r2 might be clobbered.
+  // r3 is used as scratch register. r1 and r2 keep their values if a jump to
+  // the miss label is generated.
   GenerateStoreField(masm(),
                      object,
                      index,
                      transition,
-                     r3, r2, r1,
+                     r2, r1, r3,
                      &miss);
   __ bind(&miss);
 
-  __ DecrementCounter(&Counters::keyed_store_field, 1, r1, r3);
-  __ mov(r2, Operand(Handle<String>(name)));  // restore name register.
+  __ DecrementCounter(&Counters::keyed_store_field, 1, r3, r4);
   Handle<Code> ic(Builtins::builtin(Builtins::KeyedStoreIC_Miss));
+
   __ Jump(ic, RelocInfo::CODE_TARGET);
 
   // Return the generated code.
   return GetCode(transition == NULL ? FIELD : MAP_TRANSITION, name);
 }
 
 
 Object* ConstructStubCompiler::CompileConstructStub(
     SharedFunctionInfo* shared) {
   // ----------- S t a t e -------------
@@ skipping 133 matching lines @@
   __ Jump(generic_construct_stub, RelocInfo::CODE_TARGET);
 
   // Return the generated code.
   return GetCode();
 }
 
 
 #undef __
 
 } }  // namespace v8::internal
+
+#endif  // V8_TARGET_ARCH_ARM