Author: [email protected]
Date: Wed Jul 8 02:26:51 2009
New Revision: 2387
Modified:
branches/bleeding_edge/src/x64/codegen-x64.cc
Log:
X64: Added unimplemented method in codegen-x64.cc.
Six more tests run.
Review URL: http://codereview.chromium.org/149320
Modified: branches/bleeding_edge/src/x64/codegen-x64.cc
==============================================================================
--- branches/bleeding_edge/src/x64/codegen-x64.cc (original)
+++ branches/bleeding_edge/src/x64/codegen-x64.cc Wed Jul 8 02:26:51 2009
@@ -3816,8 +3816,28 @@
Operand CodeGenerator::ContextSlotOperandCheckExtensions(Slot* slot,
Result tmp,
JumpTarget* slow)
{
- UNIMPLEMENTED();
- return Operand(rsp, 0);
+ ASSERT(slot->type() == Slot::CONTEXT);
+ ASSERT(tmp.is_register());
+ Register context = rsi;
+
+ for (Scope* s = scope(); s != slot->var()->scope(); s =
s->outer_scope()) {
+ if (s->num_heap_slots() > 0) {
+ if (s->calls_eval()) {
+ // Check that extension is NULL.
+ __ cmpq(ContextOperand(context, Context::EXTENSION_INDEX),
+ Immediate(0));
+ slow->Branch(not_equal, not_taken);
+ }
+ __ movq(tmp.reg(), ContextOperand(context, Context::CLOSURE_INDEX));
+ __ movq(tmp.reg(), FieldOperand(tmp.reg(),
JSFunction::kContextOffset));
+ context = tmp.reg();
+ }
+ }
+ // Check that last extension is NULL.
+ __ cmpq(ContextOperand(context, Context::EXTENSION_INDEX), Immediate(0));
+ slow->Branch(not_equal, not_taken);
+ __ movq(tmp.reg(), ContextOperand(context, Context::FCONTEXT_INDEX));
+ return ContextOperand(tmp.reg(), slot->index());
}
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