From: palfia@homejinni.com <palfia@homejinni.com@ce2b1a6d-e550-0410-aec6-3dcde31c8c00>
Date: Thu, 18 Apr 2013 23:48:42 +0000 (+0000)
Subject: MIPS: Add infrastructure to automatucally generate IC miss stubs
X-Git-Tag: upstream/4.7.83~14517
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=ab695a2bd7a20cde71976d4f038bf82bf7784e16;p=platform%2Fupstream%2Fv8.git

MIPS: Add infrastructure to automatucally generate IC miss stubs

Port r14342 (24df6264)

BUG=

Review URL: https://codereview.chromium.org/13896016

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14345 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
---

diff --git a/src/mips/code-stubs-mips.cc b/src/mips/code-stubs-mips.cc
index 27fd732..46bf1ae 100644
--- a/src/mips/code-stubs-mips.cc
+++ b/src/mips/code-stubs-mips.cc
@@ -161,6 +161,30 @@ static void EmitCheckForHeapNumber(MacroAssembler* masm, Register operand,
 }
 
 
+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 ||
+           a0.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();
+}
+
+
 void ToNumberStub::Generate(MacroAssembler* masm) {
   // The ToNumber stub takes one argument in a0.
   Label check_heap_number, call_builtin;