[x64] Rearrange code for OOB integer loads.

src/compiler/x64/code-generator-x64.cc

 // 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.
 
 #include "src/compiler/code-generator.h"
 
 #include "src/compiler/code-generator-impl.h"
 #include "src/compiler/gap-resolver.h"
 #include "src/compiler/node-matchers.h"
 #include "src/compiler/node-properties-inl.h"
@@ skipping 336 matching lines @@
                              Register buffer, Register index1, int32_t index2, \
                              int32_t length)                                   \
             : OutOfLineCode(gen),                                              \
               result_(result),                                                 \
               buffer_(buffer),                                                 \
               index1_(index1),                                                 \
               index2_(index2),                                                 \
               length_(length) {}                                               \
                                                                                \
         void Generate() FINAL {                                                \
+          Label oob;                                                           \
           __ leal(kScratchRegister, Operand(index1_, index2_));                \
-          __ xorl(result_, result_);                                           \
           __ cmpl(kScratchRegister, Immediate(length_));                       \
-          __ j(above_equal, exit());                                           \
+          __ j(above_equal, &oob, Label::kNear);                               \
           __ asm_instr(result_,                                                \
                        Operand(buffer_, kScratchRegister, times_1, 0));        \
+          __ jmp(exit());                                                      \
+          __ bind(&oob);                                                       \
+          __ xorl(result_, result_);                                           \
         }                                                                      \
                                                                                \
        private:                                                                \
         Register const result_;                                                \
         Register const buffer_;                                                \
         Register const index1_;                                                \
         int32_t const index2_;                                                 \
         int32_t const length_;                                                 \
       };                                                                       \
       ool = new (zone())                                                       \
@@ skipping 1038 matching lines @@
     }
   }
   MarkLazyDeoptSite();
 }
 
 #undef __
 
 }  // namespace internal
 }  // namespace compiler
 }  // namespace v8