From ff901dc5267903b165c53139ddcff5f31bbf6964 Mon Sep 17 00:00:00 2001
From: wolfbeast <mcwerewolf@gmail.com>
Date: Fri, 6 Apr 2018 13:24:25 -0400
Subject: Change inlining of intrinsics.

---
 js/src/jit/CodeGenerator.cpp | 26 ++++++++++++++++++++++++++
 1 file changed, 26 insertions(+)

(limited to 'js/src/jit/CodeGenerator.cpp')

diff --git a/js/src/jit/CodeGenerator.cpp b/js/src/jit/CodeGenerator.cpp
index 7b2f8214b..16d026092 100644
--- a/js/src/jit/CodeGenerator.cpp
+++ b/js/src/jit/CodeGenerator.cpp
@@ -11528,6 +11528,32 @@ CodeGenerator::visitHasClass(LHasClass* ins)
     masm.cmpPtrSet(Assembler::Equal, output, ImmPtr(ins->mir()->getClass()), output);
 }
 
+void
+CodeGenerator::visitGuardToClass(LGuardToClass* ins)
+{
+    Register lhs = ToRegister(ins->lhs());
+    Register output = ToRegister(ins->output());
+    Register temp = ToRegister(ins->temp());
+
+    Label notEqual;
+
+    masm.branchTestObjClass(Assembler::NotEqual, lhs, temp, ins->mir()->getClass(), &notEqual);
+    masm.mov(lhs, output);
+
+    if (ins->mir()->type() == MIRType::Object) {
+        // Can't return null-return here, so bail
+        bailoutFrom(&notEqual, ins->snapshot());
+    } else {
+        Label done;
+        masm.jump(&done);
+
+        masm.bind(&notEqual);
+        masm.mov(ImmPtr(0), output);
+
+        masm.bind(&done);
+    }
+}
+
 void
 CodeGenerator::visitWasmParameter(LWasmParameter* lir)
 {
-- 
cgit v1.2.3