Experimental implementation: Exposing SIMD instructions into JavaScript

src/ia32/full-codegen-ia32.cc

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 4518 matching lines @@
   { AccumulatorValueContext context(this);
     VisitForTypeofValue(sub_expr);
   }
   PrepareForBailoutBeforeSplit(expr, true, if_true, if_false);
 
   if (check->Equals(isolate()->heap()->number_string())) {
     __ JumpIfSmi(eax, if_true);
     __ cmp(FieldOperand(eax, HeapObject::kMapOffset),
            isolate()->factory()->heap_number_map());
     Split(equal, if_true, if_false, fall_through);
+  } else if (check->Equals(isolate()->heap()->float32x4_string())) {
+    __ JumpIfSmi(eax, if_false);
+    __ CmpObjectType(eax, FLOAT32x4_TYPE, edx);
+    Split(equal, if_true, if_false, fall_through);
+  } else if (check->Equals(isolate()->heap()->int32x4_string())) {
+    __ JumpIfSmi(eax, if_false);
+    __ CmpObjectType(eax, INT32x4_TYPE, edx);
+    Split(equal, if_true, if_false, fall_through);
   } else if (check->Equals(isolate()->heap()->string_string())) {
     __ JumpIfSmi(eax, if_false);
     __ CmpObjectType(eax, FIRST_NONSTRING_TYPE, edx);
     __ j(above_equal, if_false);
     // Check for undetectable objects => false.
     __ test_b(FieldOperand(edx, Map::kBitFieldOffset),
               1 << Map::kIsUndetectable);
     Split(zero, if_true, if_false, fall_through);
   } else if (check->Equals(isolate()->heap()->symbol_string())) {
     __ JumpIfSmi(eax, if_false);
@@ skipping 359 matching lines @@
 
   ASSERT_EQ(isolate->builtins()->OsrAfterStackCheck()->entry(),
             Assembler::target_address_at(call_target_address));
   return OSR_AFTER_STACK_CHECK;
 }
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_IA32