Version 3.4.2

src/arm/macro-assembler-arm.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 312 matching lines @@
                          Condition cond) {
   if (!src2.is_reg() &&
       !src2.must_use_constant_pool() &&
       src2.immediate() == 0) {
     mov(dst, Operand(0, RelocInfo::NONE), LeaveCC, cond);
 
   } else if (!src2.is_single_instruction() &&
              !src2.must_use_constant_pool() &&
              CpuFeatures::IsSupported(ARMv7) &&
              IsPowerOf2(src2.immediate() + 1)) {
-    ubfx(dst, src1, 0, WhichPowerOf2(src2.immediate() + 1), cond);
+    ubfx(dst, src1, 0,
+        WhichPowerOf2(static_cast<uint32_t>(src2.immediate()) + 1), cond);
 
   } else {
     and_(dst, src1, src2, LeaveCC, cond);
   }
 }
 
 
 void MacroAssembler::Ubfx(Register dst, Register src1, int lsb, int width,
                           Condition cond) {
   ASSERT(lsb < 32);
@@ skipping 1326 matching lines @@
 
 
 void MacroAssembler::CompareRoot(Register obj,
                                  Heap::RootListIndex index) {
   ASSERT(!obj.is(ip));
   LoadRoot(ip, index);
   cmp(obj, ip);
 }
 
 
+void MacroAssembler::CheckFastElements(Register map,
+                                       Register scratch,
+                                       Label* fail) {
+  STATIC_ASSERT(JSObject::FAST_ELEMENTS == 0);
+  ldrb(scratch, FieldMemOperand(map, Map::kInstanceTypeOffset));
+  cmp(scratch, Operand(Map::kMaximumBitField2FastElementValue));
+  b(hi, fail);
+}
+
+
 void MacroAssembler::CheckMap(Register obj,
                               Register scratch,
                               Handle<Map> map,
                               Label* fail,
                               SmiCheckType smi_check_type) {
   if (smi_check_type == DO_SMI_CHECK) {
     JumpIfSmi(obj, fail);
   }
   ldr(scratch, FieldMemOperand(obj, HeapObject::kMapOffset));
   mov(ip, Operand(map));
@@ skipping 1467 matching lines @@
 void CodePatcher::EmitCondition(Condition cond) {
   Instr instr = Assembler::instr_at(masm_.pc_);
   instr = (instr & ~kCondMask) | cond;
   masm_.emit(instr);
 }
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_ARM