Extends testb and cmpb/cmpw instruction support in the ia32 assembler.

src/ia32/codegen-ia32.cc

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "src/ia32/codegen-ia32.h"
 
 #if V8_TARGET_ARCH_IA32
 
 #include "src/codegen.h"
 #include "src/heap/heap.h"
@@ skipping 868 matching lines @@
   // Handle external strings.
   Label one_byte_external, done;
   if (FLAG_debug_code) {
     // Assert that we do not have a cons or slice (indirect strings) here.
     // Sequential strings have already been ruled out.
     __ test(result, Immediate(kIsIndirectStringMask));
     __ Assert(zero, kExternalStringExpectedButNotFound);
   }
   // Rule out short external strings.
   STATIC_ASSERT(kShortExternalStringTag != 0);
-  __ test_b(result, kShortExternalStringMask);
+  __ test_b(result, Immediate(kShortExternalStringMask));
   __ j(not_zero, call_runtime);
   // Check encoding.
   STATIC_ASSERT(kTwoByteStringTag == 0);
-  __ test_b(result, kStringEncodingMask);
+  __ test_b(result, Immediate(kStringEncodingMask));
   __ mov(result, FieldOperand(string, ExternalString::kResourceDataOffset));
   __ j(not_equal, &one_byte_external, Label::kNear);
   // Two-byte string.
   __ movzx_w(result, Operand(result, index, times_2, 0));
   __ jmp(&done, Label::kNear);
   __ bind(&one_byte_external);
   // One-byte string.
   __ movzx_b(result, Operand(result, index, times_1, 0));
   __ jmp(&done, Label::kNear);
 
@@ skipping 138 matching lines @@
     CodePatcher patcher(isolate, sequence, young_length);
     patcher.masm()->call(stub->instruction_start(), RelocInfo::NONE32);
   }
 }
 
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_TARGET_ARCH_IA32