[turbofan] Length and index2 are unsigned in CheckedLoad/CheckedStore.

src/compiler/code-generator-impl.h

 // Copyright 2013 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.
 
 #ifndef V8_COMPILER_CODE_GENERATOR_IMPL_H_
 #define V8_COMPILER_CODE_GENERATOR_IMPL_H_
 
 #include "src/code-stubs.h"
 #include "src/compiler/code-generator.h"
 #include "src/compiler/instruction.h"
@@ skipping 25 matching lines @@
   }
 
   double InputDouble(size_t index) { return ToDouble(instr_->InputAt(index)); }
 
   float InputFloat32(size_t index) { return ToFloat32(instr_->InputAt(index)); }
 
   int32_t InputInt32(size_t index) {
     return ToConstant(instr_->InputAt(index)).ToInt32();
   }
 
+  uint32_t InputUint32(size_t index) {
+    return bit_cast<uint32_t>(InputInt32(index));
+  }
+
   int64_t InputInt64(size_t index) {
     return ToConstant(instr_->InputAt(index)).ToInt64();
   }
 
   int8_t InputInt8(size_t index) {
     return static_cast<int8_t>(InputInt32(index));
   }
 
   int16_t InputInt16(size_t index) {
     return static_cast<int16_t>(InputInt32(index));
@@ skipping 129 matching lines @@
 #elif V8_TARGET_ARCH_IA32 || V8_TARGET_ARCH_X64
   masm->ud2();
 #endif
 }
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_COMPILER_CODE_GENERATOR_IMPL_H