[TypeFeedbackVector] Root literal arrays in function literals slots

src/builtins/arm/builtins-arm.cc

 // Copyright 2012 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_ARM
 
 #include "src/codegen.h"
 #include "src/debug/debug.h"
 #include "src/deoptimizer.h"
 #include "src/full-codegen/full-codegen.h"
@@ skipping 1332 matching lines @@
 
   Register map = argument_count;
   Register index = r2;
   __ ldr(map, FieldMemOperand(closure, JSFunction::kSharedFunctionInfoOffset));
   __ ldr(map,
          FieldMemOperand(map, SharedFunctionInfo::kOptimizedCodeMapOffset));
   __ ldr(index, FieldMemOperand(map, FixedArray::kLengthOffset));
   __ cmp(index, Operand(Smi::FromInt(2)));
   __ b(lt, &gotta_call_runtime);
 
-  // Find literals.
   // r3  : native context
   // r2  : length / index
   // r0  : optimized code map
   // stack[0] : new target
   // stack[4] : closure
   Register native_context = r3;
   __ ldr(native_context, NativeContextMemOperand());
 
   __ bind(&loop_top);
   Register temp = r1;
   Register array_pointer = r5;
 
   // Does the native context match?
   __ add(array_pointer, map, Operand::PointerOffsetFromSmiKey(index));
   __ ldr(temp, FieldMemOperand(array_pointer,
                                SharedFunctionInfo::kOffsetToPreviousContext));
   __ ldr(temp, FieldMemOperand(temp, WeakCell::kValueOffset));
   __ cmp(temp, native_context);
   __ b(ne, &loop_bottom);
-  // Literals available?
-  __ ldr(temp, FieldMemOperand(array_pointer,
-                               SharedFunctionInfo::kOffsetToPreviousLiterals));
-  __ ldr(temp, FieldMemOperand(temp, WeakCell::kValueOffset));
-  __ JumpIfSmi(temp, &gotta_call_runtime);
-
-  // Save the literals in the closure.
-  __ ldr(r4, MemOperand(sp, 0));
-  __ str(temp, FieldMemOperand(r4, JSFunction::kLiteralsOffset));
-  __ push(index);
-  __ RecordWriteField(r4, JSFunction::kLiteralsOffset, temp, index,
-                      kLRHasNotBeenSaved, kDontSaveFPRegs, EMIT_REMEMBERED_SET,
-                      OMIT_SMI_CHECK);
-  __ pop(index);
 
   // Code available?
   Register entry = r4;
   __ ldr(entry,
          FieldMemOperand(array_pointer,
                          SharedFunctionInfo::kOffsetToPreviousCachedCode));
   __ ldr(entry, FieldMemOperand(entry, WeakCell::kValueOffset));
   __ JumpIfSmi(entry, &try_shared);
 
-  // Found literals and code. Get them into the closure and return.
+  // Found code. Get it into the closure and return.
   __ pop(closure);
   // Store code entry in the closure.
   __ add(entry, entry, Operand(Code::kHeaderSize - kHeapObjectTag));
   __ str(entry, FieldMemOperand(closure, JSFunction::kCodeEntryOffset));
   __ RecordWriteCodeEntryField(closure, entry, r5);
 
   // Link the closure into the optimized function list.
   // r4 : code entry
   // r3 : native context
   // r1 : closure
@@ skipping 14 matching lines @@
   __ mov(closure, r5);
   __ pop(new_target);
   __ pop(argument_count);
   __ Jump(entry);
 
   __ bind(&loop_bottom);
   __ sub(index, index, Operand(Smi::FromInt(SharedFunctionInfo::kEntryLength)));
   __ cmp(index, Operand(Smi::FromInt(1)));
   __ b(gt, &loop_top);
 
-  // We found neither literals nor code.
+  // We found no code.
   __ jmp(&gotta_call_runtime);
 
   __ bind(&try_shared);
   __ pop(closure);
   __ pop(new_target);
   __ pop(argument_count);
   __ ldr(entry,
          FieldMemOperand(closure, JSFunction::kSharedFunctionInfoOffset));
   // Is the shared function marked for tier up?
   __ ldrb(r5, FieldMemOperand(entry,
@@ skipping 1445 matching lines @@
     __ bkpt(0);
   }
 }
 
 #undef __
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_TARGET_ARCH_ARM