Introduce x87 port

src/x87/full-codegen-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 "code-stubs.h"
 #include "codegen.h"
 #include "compiler.h"
 #include "debug.h"
 #include "full-codegen.h"
 #include "isolate-inl.h"
 #include "parser.h"
 #include "scopes.h"
 #include "stub-cache.h"
@@ skipping 86 matching lines @@
 // return address on top of them.  The actual argument count matches the
 // formal parameter count expected by the function.
 //
 // The live registers are:
 //   o edi: the JS function object being called (i.e. ourselves)
 //   o esi: our context
 //   o ebp: our caller's frame pointer
 //   o esp: stack pointer (pointing to return address)
 //
 // The function builds a JS frame.  Please see JavaScriptFrameConstants in
-// frames-ia32.h for its layout.
+// frames-x87.h for its layout.
 void FullCodeGenerator::Generate() {
   CompilationInfo* info = info_;
   handler_table_ =
       isolate()->factory()->NewFixedArray(function()->handler_count(), TENURED);
 
   profiling_counter_ = isolate()->factory()->NewCell(
       Handle<Smi>(Smi::FromInt(FLAG_interrupt_budget), isolate()));
   SetFunctionPosition(function());
   Comment cmnt(masm_, "[ function compiled by full code generator");
 
@@ skipping 100 matching lines @@
             (num_parameters - 1 - i) * kPointerSize;
         // Load parameter from stack.
         __ mov(eax, Operand(ebp, parameter_offset));
         // Store it in the context.
         int context_offset = Context::SlotOffset(var->index());
         __ mov(Operand(esi, context_offset), eax);
         // Update the write barrier. This clobbers eax and ebx.
         __ RecordWriteContextSlot(esi,
                                   context_offset,
                                   eax,
-                                  ebx,
-                                  kDontSaveFPRegs);
+                                  ebx);
       }
     }
   }
 
   Variable* arguments = scope()->arguments();
   if (arguments != NULL) {
     // Function uses arguments object.
     Comment cmnt(masm_, "[ Allocate arguments object");
     if (function_in_register) {
       __ push(edi);
@@ skipping 194 matching lines @@
 
 void FullCodeGenerator::TestContext::Plug(Variable* var) const {
   // For simplicity we always test the accumulator register.
   codegen()->GetVar(result_register(), var);
   codegen()->PrepareForBailoutBeforeSplit(condition(), false, NULL, NULL);
   codegen()->DoTest(this);
 }
 
 
 void FullCodeGenerator::EffectContext::Plug(Heap::RootListIndex index) const {
-  UNREACHABLE();  // Not used on IA32.
+  UNREACHABLE();  // Not used on X87.
 }
 
 
 void FullCodeGenerator::AccumulatorValueContext::Plug(
     Heap::RootListIndex index) const {
-  UNREACHABLE();  // Not used on IA32.
+  UNREACHABLE();  // Not used on X87.
 }
 
 
 void FullCodeGenerator::StackValueContext::Plug(
     Heap::RootListIndex index) const {
-  UNREACHABLE();  // Not used on IA32.
+  UNREACHABLE();  // Not used on X87.
 }
 
 
 void FullCodeGenerator::TestContext::Plug(Heap::RootListIndex index) const {
-  UNREACHABLE();  // Not used on IA32.
+  UNREACHABLE();  // Not used on X87.
 }
 
 
 void FullCodeGenerator::EffectContext::Plug(Handle<Object> lit) const {
 }
 
 
 void FullCodeGenerator::AccumulatorValueContext::Plug(
     Handle<Object> lit) const {
   if (lit->IsSmi()) {
@@ skipping 219 matching lines @@
   ASSERT(!scratch0.is(src));
   ASSERT(!scratch0.is(scratch1));
   ASSERT(!scratch1.is(src));
   MemOperand location = VarOperand(var, scratch0);
   __ mov(location, src);
 
   // Emit the write barrier code if the location is in the heap.
   if (var->IsContextSlot()) {
     int offset = Context::SlotOffset(var->index());
     ASSERT(!scratch0.is(esi) && !src.is(esi) && !scratch1.is(esi));
-    __ RecordWriteContextSlot(scratch0, offset, src, scratch1, kDontSaveFPRegs);
+    __ RecordWriteContextSlot(scratch0, offset, src, scratch1);
   }
 }
 
 
 void FullCodeGenerator::PrepareForBailoutBeforeSplit(Expression* expr,
                                                      bool should_normalize,
                                                      Label* if_true,
                                                      Label* if_false) {
   // Only prepare for bailouts before splits if we're in a test
   // context. Otherwise, we let the Visit function deal with the
@@ skipping 113 matching lines @@
     case Variable::CONTEXT: {
       Comment cmnt(masm_, "[ FunctionDeclaration");
       EmitDebugCheckDeclarationContext(variable);
       VisitForAccumulatorValue(declaration->fun());
       __ mov(ContextOperand(esi, variable->index()), result_register());
       // We know that we have written a function, which is not a smi.
       __ RecordWriteContextSlot(esi,
                                 Context::SlotOffset(variable->index()),
                                 result_register(),
                                 ecx,
-                                kDontSaveFPRegs,
                                 EMIT_REMEMBERED_SET,
                                 OMIT_SMI_CHECK);
       PrepareForBailoutForId(proxy->id(), NO_REGISTERS);
       break;
     }
 
     case Variable::LOOKUP: {
       Comment cmnt(masm_, "[ FunctionDeclaration");
       __ push(esi);
       __ push(Immediate(variable->name()));
@@ skipping 19 matching lines @@
   __ mov(eax, ContextOperand(eax, variable->interface()->Index()));
   __ mov(eax, ContextOperand(eax, Context::EXTENSION_INDEX));
 
   // Assign it.
   __ mov(ContextOperand(esi, variable->index()), eax);
   // We know that we have written a module, which is not a smi.
   __ RecordWriteContextSlot(esi,
                             Context::SlotOffset(variable->index()),
                             eax,
                             ecx,
-                            kDontSaveFPRegs,
                             EMIT_REMEMBERED_SET,
                             OMIT_SMI_CHECK);
   PrepareForBailoutForId(declaration->proxy()->id(), NO_REGISTERS);
 
   // Traverse into body.
   Visit(declaration->module());
 }
 
 
 void FullCodeGenerator::VisitImportDeclaration(ImportDeclaration* declaration) {
@@ skipping 872 matching lines @@
     if (IsFastObjectElementsKind(constant_elements_kind)) {
       // Fast-case array literal with ElementsKind of FAST_*_ELEMENTS, they
       // cannot transition and don't need to call the runtime stub.
       int offset = FixedArray::kHeaderSize + (i * kPointerSize);
       __ mov(ebx, Operand(esp, kPointerSize));  // Copy of array literal.
       __ mov(ebx, FieldOperand(ebx, JSObject::kElementsOffset));
       // Store the subexpression value in the array's elements.
       __ mov(FieldOperand(ebx, offset), result_register());
       // Update the write barrier for the array store.
       __ RecordWriteField(ebx, offset, result_register(), ecx,
-                          kDontSaveFPRegs,
                           EMIT_REMEMBERED_SET,
                           INLINE_SMI_CHECK);
     } else {
       // Store the subexpression value in the array's elements.
       __ mov(ecx, Immediate(Smi::FromInt(i)));
       StoreArrayLiteralElementStub stub(isolate());
       __ CallStub(&stub);
     }
 
     PrepareForBailoutForId(expr->GetIdForElement(i), NO_REGISTERS);
@@ skipping 138 matching lines @@
       __ bind(&continuation);
       __ jmp(&resume);
 
       __ bind(&suspend);
       VisitForAccumulatorValue(expr->generator_object());
       ASSERT(continuation.pos() > 0 && Smi::IsValid(continuation.pos()));
       __ mov(FieldOperand(eax, JSGeneratorObject::kContinuationOffset),
              Immediate(Smi::FromInt(continuation.pos())));
       __ mov(FieldOperand(eax, JSGeneratorObject::kContextOffset), esi);
       __ mov(ecx, esi);
-      __ RecordWriteField(eax, JSGeneratorObject::kContextOffset, ecx, edx,
-                          kDontSaveFPRegs);
+      __ RecordWriteField(eax, JSGeneratorObject::kContextOffset, ecx, edx);
       __ lea(ebx, Operand(ebp, StandardFrameConstants::kExpressionsOffset));
       __ cmp(esp, ebx);
       __ j(equal, &post_runtime);
       __ push(eax);  // generator object
       __ CallRuntime(Runtime::kHiddenSuspendJSGeneratorObject, 1);
       __ mov(context_register(),
              Operand(ebp, StandardFrameConstants::kContextOffset));
       __ bind(&post_runtime);
       __ pop(result_register());
       EmitReturnSequence();
@@ skipping 50 matching lines @@
       __ jmp(&l_resume);
       __ bind(&l_suspend);
       const int generator_object_depth = kPointerSize + handler_size;
       __ mov(eax, Operand(esp, generator_object_depth));
       __ push(eax);                                      // g
       ASSERT(l_continuation.pos() > 0 && Smi::IsValid(l_continuation.pos()));
       __ mov(FieldOperand(eax, JSGeneratorObject::kContinuationOffset),
              Immediate(Smi::FromInt(l_continuation.pos())));
       __ mov(FieldOperand(eax, JSGeneratorObject::kContextOffset), esi);
       __ mov(ecx, esi);
-      __ RecordWriteField(eax, JSGeneratorObject::kContextOffset, ecx, edx,
-                          kDontSaveFPRegs);
+      __ RecordWriteField(eax, JSGeneratorObject::kContextOffset, ecx, edx);
       __ CallRuntime(Runtime::kHiddenSuspendJSGeneratorObject, 1);
       __ mov(context_register(),
              Operand(ebp, StandardFrameConstants::kContextOffset));
       __ pop(eax);                                       // result
       EmitReturnSequence();
       __ bind(&l_resume);                                // received in eax
       __ PopTryHandler();
 
       // receiver = iter; f = iter.next; arg = received;
       __ bind(&l_next);
@@ skipping 173 matching lines @@
   __ mov(FieldOperand(eax, JSObject::kPropertiesOffset),
          isolate()->factory()->empty_fixed_array());
   __ mov(FieldOperand(eax, JSObject::kElementsOffset),
          isolate()->factory()->empty_fixed_array());
   __ mov(FieldOperand(eax, JSGeneratorObject::kResultValuePropertyOffset), ecx);
   __ mov(FieldOperand(eax, JSGeneratorObject::kResultDonePropertyOffset), edx);
 
   // Only the value field needs a write barrier, as the other values are in the
   // root set.
   __ RecordWriteField(eax, JSGeneratorObject::kResultValuePropertyOffset,
-                      ecx, edx, kDontSaveFPRegs);
+                      ecx, edx);
 }
 
 
 void FullCodeGenerator::EmitNamedPropertyLoad(Property* prop) {
   SetSourcePosition(prop->position());
   Literal* key = prop->key()->AsLiteral();
   ASSERT(!key->value()->IsSmi());
   __ mov(ecx, Immediate(key->value()));
   CallLoadIC(NOT_CONTEXTUAL, prop->PropertyFeedbackId());
 }
@@ skipping 160 matching lines @@
   context()->Plug(eax);
 }
 
 
 void FullCodeGenerator::EmitStoreToStackLocalOrContextSlot(
     Variable* var, MemOperand location) {
   __ mov(location, eax);
   if (var->IsContextSlot()) {
     __ mov(edx, eax);
     int offset = Context::SlotOffset(var->index());
-    __ RecordWriteContextSlot(ecx, offset, edx, ebx, kDontSaveFPRegs);
+    __ RecordWriteContextSlot(ecx, offset, edx, ebx);
   }
 }
 
 
 void FullCodeGenerator::EmitCallStoreContextSlot(
     Handle<String> name, StrictMode strict_mode) {
   __ push(eax);  // Value.
   __ push(esi);  // Context.
   __ push(Immediate(name));
   __ push(Immediate(Smi::FromInt(strict_mode)));
@@ skipping 1015 matching lines @@
 }
 
 
 void FullCodeGenerator::EmitMathPow(CallRuntime* expr) {
   // Load the arguments on the stack and call the runtime function.
   ZoneList<Expression*>* args = expr->arguments();
   ASSERT(args->length() == 2);
   VisitForStackValue(args->at(0));
   VisitForStackValue(args->at(1));
 
-  MathPowStub stub(isolate(), MathPowStub::ON_STACK);
-  __ CallStub(&stub);
+  __ CallRuntime(Runtime::kHiddenMathPowSlow, 2);
   context()->Plug(eax);
 }
 
 
 void FullCodeGenerator::EmitSetValueOf(CallRuntime* expr) {
   ZoneList<Expression*>* args = expr->arguments();
   ASSERT(args->length() == 2);
 
   VisitForStackValue(args->at(0));  // Load the object.
   VisitForAccumulatorValue(args->at(1));  // Load the value.
   __ pop(ebx);  // eax = value. ebx = object.
 
   Label done;
   // If the object is a smi, return the value.
   __ JumpIfSmi(ebx, &done, Label::kNear);
 
   // If the object is not a value type, return the value.
   __ CmpObjectType(ebx, JS_VALUE_TYPE, ecx);
   __ j(not_equal, &done, Label::kNear);
 
   // Store the value.
   __ mov(FieldOperand(ebx, JSValue::kValueOffset), eax);
 
   // Update the write barrier.  Save the value as it will be
   // overwritten by the write barrier code and is needed afterward.
   __ mov(edx, eax);
-  __ RecordWriteField(ebx, JSValue::kValueOffset, edx, ecx, kDontSaveFPRegs);
+  __ RecordWriteField(ebx, JSValue::kValueOffset, edx, ecx);
 
   __ bind(&done);
   context()->Plug(eax);
 }
 
 
 void FullCodeGenerator::EmitNumberToString(CallRuntime* expr) {
   ZoneList<Expression*>* args = expr->arguments();
   ASSERT_EQ(args->length(), 1);
 
@@ skipping 1335 matching lines @@
 
   ASSERT_EQ(isolate->builtins()->OsrAfterStackCheck()->entry(),
             Assembler::target_address_at(call_target_address,
                                          unoptimized_code));
   return OSR_AFTER_STACK_CHECK;
 }
 
 
 } }  // namespace v8::internal
 
-#endif  // V8_TARGET_ARCH_IA32
+#endif  // V8_TARGET_ARCH_X87