VM: Remove collection of unused range feedback.

runtime/vm/object.cc

 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #include "vm/object.h"
 
 #include "include/dart_api.h"
 #include "platform/assert.h"
 #include "vm/assembler.h"
 #include "vm/become.h"
@@ skipping 13502 matching lines @@
     obj = from_array.At(i);
     cloned_array.SetAt(i, obj);
   }
   result.set_ic_data_array(cloned_array);
   // Copy deoptimization reasons.
   result.SetDeoptReasons(from.DeoptReasons());
   return result.raw();
 }
 
 
-static Token::Kind RecognizeArithmeticOp(const String& name) {
-  ASSERT(name.IsSymbol());
-  if (name.raw() == Symbols::Plus().raw()) {
-    return Token::kADD;
-  } else if (name.raw() == Symbols::Minus().raw()) {
-    return Token::kSUB;
-  } else if (name.raw() == Symbols::Star().raw()) {
-    return Token::kMUL;
-  } else if (name.raw() == Symbols::Slash().raw()) {
-    return Token::kDIV;
-  } else if (name.raw() == Symbols::TruncDivOperator().raw()) {
-    return Token::kTRUNCDIV;
-  } else if (name.raw() == Symbols::Percent().raw()) {
-    return Token::kMOD;
-  } else if (name.raw() == Symbols::BitOr().raw()) {
-    return Token::kBIT_OR;
-  } else if (name.raw() == Symbols::Ampersand().raw()) {
-    return Token::kBIT_AND;
-  } else if (name.raw() == Symbols::Caret().raw()) {
-    return Token::kBIT_XOR;
-  } else if (name.raw() == Symbols::LeftShiftOperator().raw()) {
-    return Token::kSHL;
-  } else if (name.raw() == Symbols::RightShiftOperator().raw()) {
-    return Token::kSHR;
-  } else if (name.raw() == Symbols::Tilde().raw()) {
-    return Token::kBIT_NOT;
-  } else if (name.raw() == Symbols::UnaryMinus().raw()) {
-    return Token::kNEGATE;
-  }
-  return Token::kILLEGAL;
-}
-
-
-bool ICData::HasRangeFeedback() const {
-  const String& target = String::Handle(target_name());
-  const Token::Kind token_kind = RecognizeArithmeticOp(target);
-  if (!Token::IsBinaryArithmeticOperator(token_kind) &&
-      !Token::IsUnaryArithmeticOperator(token_kind)) {
-    return false;
-  }
-
-  bool initialized = false;
-  const intptr_t len = NumberOfChecks();
-  GrowableArray<intptr_t> class_ids;
-  for (intptr_t i = 0; i < len; i++) {
-    if (IsUsedAt(i)) {
-      initialized = true;
-      GetClassIdsAt(i, &class_ids);
-      for (intptr_t j = 0; j < class_ids.length(); j++) {
-        const intptr_t cid = class_ids[j];
-        if ((cid != kSmiCid) && (cid != kMintCid)) {
-          return false;
-        }
-      }
-    }
-  }
-
-  return initialized;
-}
-
-
-ICData::RangeFeedback ICData::DecodeRangeFeedbackAt(intptr_t idx) const {
-  ASSERT((0 <= idx) && (idx < 3));
-  const uint32_t raw_feedback =
-      RangeFeedbackBits::decode(raw_ptr()->state_bits_);
-  const uint32_t feedback =
-      (raw_feedback >> (idx * kBitsPerRangeFeedback)) & kRangeFeedbackMask;
-  if ((feedback & kInt64RangeBit) != 0) {
-    return kInt64Range;
-  }
-
-  if ((feedback & kUint32RangeBit) != 0) {
-    if ((feedback & kSignedRangeBit) == 0) {
-      return kUint32Range;
-    }
-
-    // Check if Smi is large enough to accomodate Int33: a mixture of Uint32
-    // and negative Int32 values.
-    return (kSmiBits < 33) ? kInt64Range : kSmiRange;
-  }
-
-  if ((feedback & kInt32RangeBit) != 0) {
-    return kInt32Range;
-  }
-
-  return kSmiRange;
-}
-
-
 Code::Comments& Code::Comments::New(intptr_t count) {
   Comments* comments;
   if (count < 0 || count > (kIntptrMax / kNumberOfEntries)) {
     // This should be caught before we reach here.
     FATAL1("Fatal error in Code::Comments::New: invalid count %" Pd "\n",
            count);
   }
   if (count == 0) {
     comments = new Comments(Object::empty_array());
   } else {
@@ skipping 9046 matching lines @@
   return UserTag::null();
 }
 
 
 const char* UserTag::ToCString() const {
   const String& tag_label = String::Handle(label());
   return tag_label.ToCString();
 }
 
 }  // namespace dart