[turbofan] Allow deoptimization for JSToNumber operator.

src/ppc/full-codegen-ppc.cc

 // Copyright 2014 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/v8.h"
 
 #if V8_TARGET_ARCH_PPC
 
 #include "src/code-factory.h"
 #include "src/code-stubs.h"
@@ skipping 4712 matching lines @@
     __ LoadSmiLiteral(scratch1, Smi::FromInt(count_value));
     __ AddAndCheckForOverflow(r3, r3, scratch1, scratch2, r0);
     __ BranchOnNoOverflow(&done);
     // Call stub. Undo operation first.
     __ sub(r3, r3, scratch1);
     __ b(&stub_call);
     __ bind(&slow);
   }
   ToNumberStub convert_stub(isolate());
   __ CallStub(&convert_stub);
+  PrepareForBailoutForId(expr->ToNumberId(), TOS_REG);
 
   // Save result for postfix expressions.
   if (expr->is_postfix()) {
     if (!context()->IsEffect()) {
       // Save the result on the stack. If we have a named or keyed property
       // we store the result under the receiver that is currently on top
       // of the stack.
       switch (assign_type) {
         case VARIABLE:
           __ push(r3);
@@ skipping 538 matching lines @@
     return ON_STACK_REPLACEMENT;
   }
 
   DCHECK(interrupt_address ==
          isolate->builtins()->OsrAfterStackCheck()->entry());
   return OSR_AFTER_STACK_CHECK;
 }
 }
 }  // namespace v8::internal
 #endif  // V8_TARGET_ARCH_PPC