Fix deoptimization at ForInStatement::BodyId()

src/full-codegen/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.
 
 #if V8_TARGET_ARCH_PPC
 
 #include "src/code-factory.h"
 #include "src/code-stubs.h"
 #include "src/codegen.h"
 #include "src/debug/debug.h"
@@ skipping 1087 matching lines @@
   __ CompareObjectType(r5, r6, r6, LAST_JS_PROXY_TYPE);
   __ bgt(&non_proxy);
   __ LoadSmiLiteral(r4, Smi::FromInt(0));  // Zero indicates proxy
   __ bind(&non_proxy);
   __ Push(r4, r3);  // Smi and array
   __ LoadP(r4, FieldMemOperand(r3, FixedArray::kLengthOffset));
   __ LoadSmiLiteral(r3, Smi::FromInt(0));
   __ Push(r4, r3);  // Fixed array length (as smi) and initial index.
 
   // Generate code for doing the condition check.
-  PrepareForBailoutForId(stmt->BodyId(), NO_REGISTERS);
   __ bind(&loop);
   SetExpressionAsStatementPosition(stmt->each());
 
   // Load the current count to r3, load the length to r4.
   __ LoadP(r3, MemOperand(sp, 0 * kPointerSize));
   __ LoadP(r4, MemOperand(sp, 1 * kPointerSize));
   __ cmpl(r3, r4);  // Compare to the array length.
   __ bge(loop_statement.break_label());
 
   // Get the current entry of the array into register r6.
@@ skipping 34 matching lines @@
   // entry in register r6.
   __ bind(&update_each);
   __ mr(result_register(), r6);
   // Perform the assignment as if via '='.
   {
     EffectContext context(this);
     EmitAssignment(stmt->each(), stmt->EachFeedbackSlot());
     PrepareForBailoutForId(stmt->AssignmentId(), NO_REGISTERS);
   }
 
+  // Both Crankshaft and Turbofan expect BodyId to be right before stmt->body().
+  PrepareForBailoutForId(stmt->BodyId(), NO_REGISTERS);
   // Generate code for the body of the loop.
   Visit(stmt->body());
 
   // Generate code for the going to the next element by incrementing
   // the index (smi) stored on top of the stack.
   __ bind(loop_statement.continue_label());
   __ pop(r3);
   __ AddSmiLiteral(r3, r3, Smi::FromInt(1), r0);
   __ push(r3);
 
@@ skipping 3969 matching lines @@
     return ON_STACK_REPLACEMENT;
   }
 
   DCHECK(interrupt_address ==
          isolate->builtins()->OsrAfterStackCheck()->entry());
   return OSR_AFTER_STACK_CHECK;
 }
 }  // namespace internal
 }  // namespace v8
 #endif  // V8_TARGET_ARCH_PPC