Introduce x87 port

src/x87/stub-cache-x87.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 "v8.h"
 
-#if V8_TARGET_ARCH_IA32
+#if V8_TARGET_ARCH_X87
 
 #include "ic-inl.h"
 #include "codegen.h"
 #include "stub-cache.h"
 
 namespace v8 {
 namespace internal {
 
 #define __ ACCESS_MASM(masm)
 
@@ skipping 502 matching lines @@
         __ j(equal, &do_store, Label::kNear);
       }
       __ bind(&do_store);
     }
   } else if (representation.IsDouble()) {
     Label do_store, heap_number;
     __ AllocateHeapNumber(storage_reg, scratch1, scratch2, slow);
 
     __ JumpIfNotSmi(value_reg, &heap_number);
     __ SmiUntag(value_reg);
-    __ Cvtsi2sd(xmm0, value_reg);
+    __ push(value_reg);
+    __ fild_s(Operand(esp, 0));
+    __ pop(value_reg);
     __ SmiTag(value_reg);
     __ jmp(&do_store);
 
     __ bind(&heap_number);
     __ CheckMap(value_reg, masm->isolate()->factory()->heap_number_map(),
                 miss_label, DONT_DO_SMI_CHECK);
-    __ movsd(xmm0, FieldOperand(value_reg, HeapNumber::kValueOffset));
+    __ fld_d(FieldOperand(value_reg, HeapNumber::kValueOffset));
 
     __ bind(&do_store);
-    __ movsd(FieldOperand(storage_reg, HeapNumber::kValueOffset), xmm0);
+    __ fstp_d(FieldOperand(storage_reg, HeapNumber::kValueOffset));
   }
 
   // Stub never generated for non-global objects that require access
   // checks.
   ASSERT(object->IsJSGlobalProxy() || !object->IsAccessCheckNeeded());
 
   // Perform map transition for the receiver if necessary.
   if (details.type() == FIELD &&
       object->map()->unused_property_fields() == 0) {
     // The properties must be extended before we can store the value.
@@ skipping 13 matching lines @@
 
   // Update the map of the object.
   __ mov(scratch1, Immediate(transition));
   __ mov(FieldOperand(receiver_reg, HeapObject::kMapOffset), scratch1);
 
   // Update the write barrier for the map field.
   __ RecordWriteField(receiver_reg,
                       HeapObject::kMapOffset,
                       scratch1,
                       scratch2,
-                      kDontSaveFPRegs,
                       OMIT_REMEMBERED_SET,
                       OMIT_SMI_CHECK);
 
   if (details.type() == CONSTANT) {
     ASSERT(value_reg.is(eax));
     __ ret(0);
     return;
   }
 
   int index = transition->instance_descriptors()->GetFieldIndex(
@@ skipping 18 matching lines @@
 
     if (!representation.IsSmi()) {
       // Update the write barrier for the array address.
       if (!representation.IsDouble()) {
         __ mov(storage_reg, value_reg);
       }
       __ RecordWriteField(receiver_reg,
                           offset,
                           storage_reg,
                           scratch1,
-                          kDontSaveFPRegs,
                           EMIT_REMEMBERED_SET,
                           smi_check);
     }
   } else {
     // Write to the properties array.
     int offset = index * kPointerSize + FixedArray::kHeaderSize;
     // Get the properties array (optimistically).
     __ mov(scratch1, FieldOperand(receiver_reg, JSObject::kPropertiesOffset));
     if (representation.IsDouble()) {
       __ mov(FieldOperand(scratch1, offset), storage_reg);
     } else {
       __ mov(FieldOperand(scratch1, offset), value_reg);
     }
 
     if (!representation.IsSmi()) {
       // Update the write barrier for the array address.
       if (!representation.IsDouble()) {
         __ mov(storage_reg, value_reg);
       }
       __ RecordWriteField(scratch1,
                           offset,
                           storage_reg,
                           receiver_reg,
-                          kDontSaveFPRegs,
                           EMIT_REMEMBERED_SET,
                           smi_check);
     }
   }
 
   // Return the value (register eax).
   ASSERT(value_reg.is(eax));
   __ ret(0);
 }
 
@@ skipping 49 matching lines @@
     } else {
       __ mov(scratch1, FieldOperand(receiver_reg, JSObject::kPropertiesOffset));
       int offset = index * kPointerSize + FixedArray::kHeaderSize;
       __ mov(scratch1, FieldOperand(scratch1, offset));
     }
 
     // Store the value into the storage.
     Label do_store, heap_number;
     __ JumpIfNotSmi(value_reg, &heap_number);
     __ SmiUntag(value_reg);
-    __ Cvtsi2sd(xmm0, value_reg);
+    __ push(value_reg);
+    __ fild_s(Operand(esp, 0));
+    __ pop(value_reg);
     __ SmiTag(value_reg);
     __ jmp(&do_store);
     __ bind(&heap_number);
     __ CheckMap(value_reg, masm->isolate()->factory()->heap_number_map(),
                 miss_label, DONT_DO_SMI_CHECK);
-    __ movsd(xmm0, FieldOperand(value_reg, HeapNumber::kValueOffset));
+    __ fld_d(FieldOperand(value_reg, HeapNumber::kValueOffset));
     __ bind(&do_store);
-    __ movsd(FieldOperand(scratch1, HeapNumber::kValueOffset), xmm0);
+    __ fstp_d(FieldOperand(scratch1, HeapNumber::kValueOffset));
     // Return the value (register eax).
     ASSERT(value_reg.is(eax));
     __ ret(0);
     return;
   }
 
   ASSERT(!representation.IsDouble());
   // TODO(verwaest): Share this code as a code stub.
   SmiCheck smi_check = representation.IsTagged()
       ? INLINE_SMI_CHECK : OMIT_SMI_CHECK;
   if (index < 0) {
     // Set the property straight into the object.
     int offset = object->map()->instance_size() + (index * kPointerSize);
     __ mov(FieldOperand(receiver_reg, offset), value_reg);
 
     if (!representation.IsSmi()) {
       // Update the write barrier for the array address.
       // Pass the value being stored in the now unused name_reg.
       __ mov(name_reg, value_reg);
       __ RecordWriteField(receiver_reg,
                           offset,
                           name_reg,
                           scratch1,
-                          kDontSaveFPRegs,
                           EMIT_REMEMBERED_SET,
                           smi_check);
     }
   } else {
     // Write to the properties array.
     int offset = index * kPointerSize + FixedArray::kHeaderSize;
     // Get the properties array (optimistically).
     __ mov(scratch1, FieldOperand(receiver_reg, JSObject::kPropertiesOffset));
     __ mov(FieldOperand(scratch1, offset), value_reg);
 
     if (!representation.IsSmi()) {
       // Update the write barrier for the array address.
       // Pass the value being stored in the now unused name_reg.
       __ mov(name_reg, value_reg);
       __ RecordWriteField(scratch1,
                           offset,
                           name_reg,
                           receiver_reg,
-                          kDontSaveFPRegs,
                           EMIT_REMEMBERED_SET,
                           smi_check);
     }
   }
 
   // Return the value (register eax).
   ASSERT(value_reg.is(eax));
   __ ret(0);
 }
 
@@ skipping 730 matching lines @@
   //  -- esp[0] : return address
   // -----------------------------------
   TailCallBuiltin(masm, Builtins::kKeyedLoadIC_Miss);
 }
 
 
 #undef __
 
 } }  // namespace v8::internal
 
-#endif  // V8_TARGET_ARCH_IA32
+#endif  // V8_TARGET_ARCH_X87