Add missing branches in code generated for LModI with power-of-2 divisor.

src/x64/lithium-codegen-x64.cc

 // Copyright 2011 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 791 matching lines @@
 
     Label positive_dividend, done;
     __ testl(dividend, dividend);
     __ j(not_sign, &positive_dividend, Label::kNear);
     __ negl(dividend);
     __ andl(dividend, Immediate(divisor - 1));
     __ negl(dividend);
     if (instr->hydrogen()->CheckFlag(HValue::kBailoutOnMinusZero)) {
       __ j(not_zero, &done, Label::kNear);
       DeoptimizeIf(no_condition, instr->environment());
+    } else {
+      __ jmp(&done, Label::kNear);
     }
     __ bind(&positive_dividend);
     __ andl(dividend, Immediate(divisor - 1));
     __ bind(&done);
   } else {
     Label done, remainder_eq_dividend, slow, do_subtraction, both_positive;
     Register left_reg = ToRegister(instr->InputAt(0));
     Register right_reg = ToRegister(instr->InputAt(1));
     Register result_reg = ToRegister(instr->result());
 
@@ skipping 3447 matching lines @@
   RegisterEnvironmentForDeoptimization(environment);
   ASSERT(osr_pc_offset_ == -1);
   osr_pc_offset_ = masm()->pc_offset();
 }
 
 #undef __
 
 } }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_X64