Version 3.18.2
OS::MemMove/OS::MemCopy: Don't call through to generated code when size == 0 to avoid prefetching invalid memory (Chromium issue 233500)
Removed heap snapshot size limit. (Chromium issue 232305)
Performance and stability improvements on all platforms.
git-svn-id: http://v8.googlecode.com/svn/trunk@14368 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
diff --git a/src/ia32/code-stubs-ia32.cc b/src/ia32/code-stubs-ia32.cc
index 84fe688..e29d834 100644
--- a/src/ia32/code-stubs-ia32.cc
+++ b/src/ia32/code-stubs-ia32.cc
@@ -141,6 +141,31 @@
#define __ ACCESS_MASM(masm)
+
+void HydrogenCodeStub::GenerateLightweightMiss(MacroAssembler* masm) {
+ // Update the static counter each time a new code stub is generated.
+ Isolate* isolate = masm->isolate();
+ isolate->counters()->code_stubs()->Increment();
+
+ CodeStubInterfaceDescriptor* descriptor = GetInterfaceDescriptor(isolate);
+ int param_count = descriptor->register_param_count_;
+ {
+ // Call the runtime system in a fresh internal frame.
+ FrameScope scope(masm, StackFrame::INTERNAL);
+ ASSERT(descriptor->register_param_count_ == 0 ||
+ eax.is(descriptor->register_params_[param_count - 1]));
+ // Push arguments
+ for (int i = 0; i < param_count; ++i) {
+ __ push(descriptor->register_params_[i]);
+ }
+ ExternalReference miss = descriptor->miss_handler_;
+ __ CallExternalReference(miss, descriptor->register_param_count_);
+ }
+
+ __ ret(0);
+}
+
+
void ToNumberStub::Generate(MacroAssembler* masm) {
// The ToNumber stub takes one argument in eax.
Label check_heap_number, call_builtin;