commit 83aa54905e559090bea7771b83f188762cfcf082
author ricow@chromium.org <ricow@chromium.org@ce2b1a6d-e550-0410-aec6-3dcde31c8c00> Mon Feb 07 12:42:56 2011 +0000
committer ricow@chromium.org <ricow@chromium.org@ce2b1a6d-e550-0410-aec6-3dcde31c8c00> Mon Feb 07 12:42:56 2011 +0000
tree 8ff4a87f1a29a0492a9fd833b2b832daf4c7f19d
parent 31b1277ec3b8cd17acb01c66d85a456159072157

Version 3.1.2.

Added better security checks when accessing properties via Object.getOwnPropertyDescriptor.

Fixed bug in Object.defineProperty and related access bugs (issues 992, 1083 and 1092).

Added LICENSE.v8, LICENSE.strongtalk and LICENSE.valgrind to ease copyright notice generation for embedders.


git-svn-id: http://v8.googlecode.com/svn/trunk@6662 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

src/ia32/lithium-codegen-ia32.cc

diff --git a/src/ia32/lithium-codegen-ia32.cc b/src/ia32/lithium-codegen-ia32.cc
index ae8fe8d..9e4bada 100644
--- a/src/ia32/lithium-codegen-ia32.cc
+++ b/src/ia32/lithium-codegen-ia32.cc
@@ -77,7 +77,7 @@
 void LCodeGen::FinishCode(Handle<Code> code) {
   ASSERT(is_done());
   code->set_stack_slots(StackSlotCount());
-  code->set_safepoint_table_start(safepoints_.GetCodeOffset());
+  code->set_safepoint_table_offset(safepoints_.GetCodeOffset());
   PopulateDeoptimizationData(code);
 }
 
@@ -1914,10 +1914,21 @@
 
 
 void LCodeGen::DoLoadContextSlot(LLoadContextSlot* instr) {
-  // TODO(antonm): load a context with a separate instruction.
+  Register context = ToRegister(instr->context());
   Register result = ToRegister(instr->result());
-  __ LoadContext(result, instr->context_chain_length());
-  __ mov(result, ContextOperand(result, instr->slot_index()));
+  __ mov(result, ContextOperand(context, instr->slot_index()));
+}
+
+
+void LCodeGen::DoStoreContextSlot(LStoreContextSlot* instr) {
+  Register context = ToRegister(instr->context());
+  Register value = ToRegister(instr->value());
+  __ mov(ContextOperand(context, instr->slot_index()), value);
+  if (instr->needs_write_barrier()) {
+    Register temp = ToRegister(instr->TempAt(0));
+    int offset = Context::SlotOffset(instr->slot_index());
+    __ RecordWrite(context, offset, value, temp);
+  }
 }
 
 
@@ -2142,6 +2153,9 @@
   ASSERT(receiver.is(eax));
   v8::internal::ParameterCount actual(eax);
   __ InvokeFunction(edi, actual, CALL_FUNCTION, &safepoint_generator);
+
+  // Restore context.
+  __ mov(esi, Operand(ebp, StandardFrameConstants::kContextOffset));
 }
 
 
@@ -2155,16 +2169,31 @@
 }
 
 
-void LCodeGen::DoGlobalObject(LGlobalObject* instr) {
+void LCodeGen::DoContext(LContext* instr) {
   Register result = ToRegister(instr->result());
-  __ mov(result, Operand(esi, Context::SlotOffset(Context::GLOBAL_INDEX)));
+  __ mov(result, esi);
+}
+
+
+void LCodeGen::DoOuterContext(LOuterContext* instr) {
+  Register context = ToRegister(instr->context());
+  Register result = ToRegister(instr->result());
+  __ mov(result, Operand(context, Context::SlotOffset(Context::CLOSURE_INDEX)));
+  __ mov(result, FieldOperand(result, JSFunction::kContextOffset));
+}
+
+
+void LCodeGen::DoGlobalObject(LGlobalObject* instr) {
+  Register context = ToRegister(instr->context());
+  Register result = ToRegister(instr->result());
+  __ mov(result, Operand(context, Context::SlotOffset(Context::GLOBAL_INDEX)));
 }
 
 
 void LCodeGen::DoGlobalReceiver(LGlobalReceiver* instr) {
+  Register global = ToRegister(instr->global());
   Register result = ToRegister(instr->result());
-  __ mov(result, Operand(esi, Context::SlotOffset(Context::GLOBAL_INDEX)));
-  __ mov(result, FieldOperand(result, GlobalObject::kGlobalReceiverOffset));
+  __ mov(result, FieldOperand(global, GlobalObject::kGlobalReceiverOffset));
 }
 
 
@@ -3406,7 +3435,7 @@
   // Use the fast case closure allocation code that allocates in new
   // space for nested functions that don't need literals cloning.
   Handle<SharedFunctionInfo> shared_info = instr->shared_info();
-  bool pretenure = !instr->hydrogen()->pretenure();
+  bool pretenure = instr->hydrogen()->pretenure();
   if (shared_info->num_literals() == 0 && !pretenure) {
     FastNewClosureStub stub;
     __ push(Immediate(shared_info));