Experimental implementation: Exposing SIMD instructions into JavaScript

src/x64/stub-cache-x64.cc

Index: src/x64/stub-cache-x64.cc
diff --git a/src/x64/stub-cache-x64.cc b/src/x64/stub-cache-x64.cc
index e64698cf24fa06907180e98947560c8aae854213..05baad3d80ade2b7e6c3ba271e6040ad2ea451c4 100644
--- a/src/x64/stub-cache-x64.cc
+++ b/src/x64/stub-cache-x64.cc
@@ -2665,6 +2665,35 @@ void CallStubCompiler::CompileHandlerFrontend(Handle<Object> object,
           rax, holder, rbx, rdx, rdi, name, &miss);
       break;
     }
+
+    case FLOAT32x4_CHECK: {
+      // Check that the object is a float32x4.
+      __ CmpObjectType(rdx, FLOAT32x4_TYPE, rax);
+      __ j(not_equal, &miss);
+      // Check that the maps starting from the prototype haven't changed.
+      GenerateDirectLoadGlobalFunctionPrototype(
+          masm(), Context::FLOAT32x4_FUNCTION_INDEX, rax, &miss);
+      Handle<Object> prototype(object->GetPrototype(isolate()), isolate());
+      CheckPrototypes(
+          IC::CurrentTypeOf(prototype, isolate()),
+          rax, holder, rbx, rdx, rdi, name, &miss);
+      break;
+    }
+
+    case INT32x4_CHECK: {
+      // Check that the object is a int32x4.
+      __ CmpObjectType(rdx, INT32x4_TYPE, rax);
+      __ j(not_equal, &miss);
+      // Check that the maps starting from the prototype haven't changed.
+      GenerateDirectLoadGlobalFunctionPrototype(
+          masm(), Context::INT32x4_FUNCTION_INDEX, rax, &miss);
+      Handle<Object> prototype(object->GetPrototype(isolate()), isolate());
+      CheckPrototypes(
+          IC::CurrentTypeOf(prototype, isolate()),
+          rax, holder, rbx, rdx, rdi, name, &miss);
+      break;
+    }
+
     case BOOLEAN_CHECK: {
       GenerateBooleanCheck(rdx, &miss);
       // Check that the maps starting from the prototype haven't changed.