Reviewers: Paul Lind, danno, kisg, kilvadyb,
Description:
MIPS: Add infrastructure to automatucally generate IC miss stubs
Port r14342 (24df6264)
BUG=
Please review this at https://codereview.chromium.org/13896016/
SVN Base: https://v8.googlecode.com/svn/branches/bleeding_edge
Affected files:
M src/mips/code-stubs-mips.cc
Index: src/mips/code-stubs-mips.cc
diff --git a/src/mips/code-stubs-mips.cc b/src/mips/code-stubs-mips.cc
index
27fd73231a6bd042d7ee235660844e5ac01fbedc..46bf1aeb39feca420a5349508dbbf71d63205f57
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;
--
--
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